Emerging Professionals & Leadership Forum Welcome Event
● General
Room not listed on conference website
An exclusive evening experience hosted by Acuity Brands Lighting at their Lighting Innovation facility, this evening is a casual, social event that brings everyone together around ideas, inspiration, and real-world impact.An exclusive evening experience hosted by Acuity Brands Lighting at their Lighting Innovation facility, this evening is a casual, social event that brings everyone together around ideas, inspiration, and real-world impact. This hosted evening will showcase the work of the innovation team and offer a behind the scenes look at how new ideas move from spark to solution. Connect with peers, meet industry leaders and innovators, and explore how collaboration, design thinking, and technology are shaping the future of lighting and building solutions. Enjoy great conversation, food & refreshments in an informal atmosphere that encourages learning, networking, and community, before the conference officially begins.
Limited capacity, separate RSVP required. Attendees registered for EP Day or Leadership Forum will receive an email with reservation information; limited to first 38 attendees to respond.
Conference badges are required to get on the bus; please check-in at IES26 registration desk on Floor 2 before evening event.
Round trip transportation provided from hotel, departing at 5pm; approximate return 7:45pm prior to Wednesday Evening Walking Tour.read more
Added registration item required
Join us for a guided walking tour of downtown Denver with two options for the evening! Lighting Field Measurement Tour
Join the lighting field measurement group for an evening measuring through downtown Denver.Added registration item required
Join us for a guided walking tour of downtown Denver with two options for the evening!
Lighting Field Measurement Tour
Join the lighting field measurement group for an evening measuring through downtown Denver. This group will be moving more slowly to accommodate for measurements being taken. Note: Bring your own meter! Sites of interest may include:
Historic 16th Street MallDairy Blocks Alley LightingMillennium Bridge
Architectural Lighting Tour
Sold out. Limit 30 people. Get a guided tour of downtown Denver with local lighting professionals. Sites of interest will include:
Historic 16th Street MallDairy Block Experiential LightingUnion StationMillennium Bridgeread more
Additional registration required 7:00-7:45 Light Movement (Yoga & Stretching) 8:00-9:00 Breakfast 9:00-9:15 Intro 9:15:00 -10:30 "Lighting Icons Roundtable" 10:30-11:30 "AI Without the Unicorns" 11:30-11:45 Break 11:45-4:00 Off-Site Lunch & Nulite Factory Tour (limited to first 50 EP attendees*) "Lighting Icons...Additional registration required
7:00-7:45 Light Movement (Yoga & Stretching)
8:00-9:00 Breakfast
9:00-9:15 Intro
9:15:00 -10:30 "Lighting Icons Roundtable"
10:30-11:30 "AI Without the Unicorns"
11:30-11:45 Break
11:45-4:00 Off-Site Lunch & Nulite Factory Tour (limited to first 50 EP attendees*)
"Lighting Icons Roundtable"
Naomi Miller & David DiLaura
Engage with two of IES Lighting Icons - Gold Medal (highest for technical achievement) and Louis B. Marks (highest service achievement) Award winners as they share their motivation, determination, and philosophy of success to deliver pioneering impact on our Lighting Industry. The EP Day opening session will be a moderated Q & A interaction allowing attendees to talk with these two of the IES’ crowning pioneers.
"AI Without the Unicorns"
Mark Lien & Josh Miller
AI is quickly becoming part of the lighting design toolbox, but it’s easy to get lost between hype and practical value. In this session, we will cover both sides: a high-level overview of what modern AI is (and isn’t), followed by practical examples of how AI can support lighting design and visualization workflows. We’ll also discuss the downsides such as accuracy issues, bias, privacy/IP considerations, and over-reliance along with simple guardrails for using AI responsibly.
*All other attendees after the first 50 are invited to join Leadership Forum for lunch and afternoon sessions.read more
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Thu 8/13 · 8:00 AM - 4:00 PM
Leadership Forum
● General
📍 Sopris A
The IES Leadership Forum is a full day program designed to teach leadership and management skills to new IES officers.The IES Leadership Forum is a full day program designed to teach leadership and management skills to new IES officers. Time management, team building, project management, communication, and leadership skills be explored to help the attendee become more effective in all aspects of their professional & personal development.read more
This workshop offers participants insight into how 3D printing can be used in lighting and what is practically feasible at present. This workshop combines traditional lecture-style instruction with hands-on and demonstration-based content.This workshop offers participants insight into how 3D printing can be used in lighting and what is practically feasible at present. This workshop combines traditional lecture-style instruction with hands-on and demonstration-based content. The workshop aims to share research findings and experience from the presenters on adapting 3D printing for light fixture components and on their performance characterization, both in the short- and long-term.read more
Jean Paul FreyssinierSenior Research Scientist, Lighting Research Center - Rensselaer Polytechnic Institute
Indika PereraResearch Scientist, Lecturer, Lighting Research Center - Rensselaer Polytechnic Institute
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Thu 8/13 · 9:00 AM - 12:00 PM
Workshop: Designing For 30 Plus Years of Use
● Workshop
📍 Mt. Columbia
This interactive workshop addresses a single, urgent issue facing the lighting industry—how we design luminaires for longevity and sustainability—through two distinct but connected lenses.This interactive workshop addresses a single, urgent issue facing the lighting industry—how we design luminaires for longevity and sustainability—through two distinct but connected lenses. While the challenge is shared, the proposed solutions intentionally diverge, creating a productive dialogue about where responsibility and opportunity lie.
In the first section, Anne and Rachel will present research, interviews, and real-world project case studies that advocate for a fundamental shift in luminaire design: the return to replaceable LED components as a baseline expectation, not a future aspiration. Drawing parallels to earlier lighting technologies, they explore how durability, serviceability, and material responsibility were once standard—and why reclaiming those principles is essential to truly sustainable design and manufacturing today. Some manufacturers are achieving this today, but as an industry we need to advance to a unified standard.
The second section shifts from advocacy to application. Jim will give a brief history of the technical aspects of lighting fixtures by light source type and how LEDs are fundamentally different. Understanding these differences will be informative for fixture selection and from a maintenance standpoint. Then, with this knowledge, the workshop will move to a hands-on, practice-focused workshop centered on working within today’s product landscape. He guides participants through strategies for maintaining and servicing existing LED systems over their usable life. Attendees will review data sheets, installation instructions, and service manuals, and work directly with both operational and non-operational luminaires to practice troubleshooting, servicing, and informed product evaluation.
Together, this paired session invites participants into a dynamic conversation—challenging assumptions, examining tradeoffs, and equipping designers with both a vision for change and practical tools for action.read more
IES Field Measurement Workshop
Audience: Lighting practitioners at all experience levels, as well as non-lighting professionals responsible for measuring and verifying lighting conditions. This immersive, hands-on workshop bridges the gap between calculated light and measured light.IES Field Measurement Workshop
Audience: Lighting practitioners at all experience levels, as well as non-lighting professionals responsible for measuring and verifying lighting conditions.
This immersive, hands-on workshop bridges the gap between calculated light and measured light. Participants will work directly with calibrated light meters to assess real-world lighting conditions, gaining practical insight into how design intent translates to performance in the field.read more
Robert WhiteDir of Design, Illuminart
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Thu 8/13 · 1:00 PM - 4:00 PM
Workshop: Wiring the Intent—Making DALI Work for Your Projects
● Workshop
📍 Mt. Columbia
This immersive, hands-on session guides participants through the complete process of deploying a DALI-based lighting control system—built live, from concept to commissioning.This immersive, hands-on session guides participants through the complete process of deploying a DALI-based lighting control system—built live, from concept to commissioning. Attendees will experience the full lifecycle of a real-world project, beginning with design intent and control requirements, progressing through equipment selection, and culminating in system assembly, termination, configuration, and system startup.read more
The IES Industry Progress Report is designed to report significant developments to the membership each year at The Lighting Conference. Developments can include products, publications, tools or research in the field of illumination.The IES Industry Progress Report is designed to report significant developments to the membership each year at The Lighting Conference. Developments can include products, publications, tools or research in the field of illumination. During the Invitation to Submit, the IES Industry Progress Committee reviews developments in the field of Illuminating Engineering and accepts those developments considered a significant advancement to what exists in the field.read more
Built for you by(617)-PATRICK, Champion AI speaker
Welcome Remarks Recap of Board & Society Awards State of IES Update Standards & Education Update Announcement of IES27 Location Keynote Sponsored by ETC Our National Parks: Preserving for Future Generations Elizabeth Hallas, FAIA, LEED BD+C Principal, Anderson Hallas Architects...Welcome Remarks
Recap of Board & Society Awards
State of IES Update
Standards & Education Update
Announcement of IES27 Location
Keynote
Sponsored by ETC
Our National Parks: Preserving for Future Generations
Elizabeth Hallas, FAIA, LEED BD+C
Principal, Anderson Hallas Architects
Jon Brooks, PE,IALD, LEED AP BD+C, WELL AP, CXA
Principal, AE Design
Since 1916, the National Park Service has inspired millions, offering spaces for discovery, reflection, and connection that span monuments, memorials, museums, lodges, caves, and vast untouched landscapes. But designing within these treasured places is unlike any other challenge. Every decision must balance preservation with progress. Each project carries the responsibility of long-term decision making, shaping not just today’s visitor experience, but that of generations to come.
From projects spanning the array of historic preservation and sensitive ecosystems to evolving visitor amenity expectations, wildfire and flood resilience, remote site logistics, and the protection of cultural and archaeological resources, these environments entail a deep level of thought, care, and creativity. Join us as we explore how thoughtful design, both architectural and lighting, can enhance these extraordinary places. Together, we’ll look at how we can elevate the experience operationally for visitors and families today… and for their children, grandchildren, and generations beyond.read more
Elizabeth HallasPrincipal, Anderson Hallas Architects
The Power of Lighting Mockups: Validating Color, Distribution, and Performance
● Learning Lab
📍 Mt. Yale
The Power of Lighting Mockups: Validating Color, Distribution, and Performance is a hands-on workshop focused on testing light before construction.The Power of Lighting Mockups: Validating Color, Distribution, and Performance is a hands-on workshop focused on testing light before construction. Through three real-world mockups—experiential interior lighting, outdoor art, and healthcare applications—participants evaluate how color, optics, and distribution perform in physical space and learn when and how mockups improve visual comfort, reduce risk, and strengthen design outcomes beyond calculations alone.read more
Brennan SchumacherPrincipal / Lighting Design Practice Lead, Mazzetti
Chris DavisAssociate, The Lighting Agency
Built for you by(617)-PATRICK, Champion AI speaker
Augmented Futures: Ethics, AI and Lighting Practice
● Speaker Session
Room not listed on conference website
Generative AI will disrupt lighting practice whether we like it or not, but how it reshapes our work is still up for debate.Generative AI will disrupt lighting practice whether we like it or not, but how it reshapes our work is still up for debate. This interactive program shifts from AI hype to explore its broader impact on designing, engineering, and specifying architectural lighting. Attendees, including those who are skeptical about AI, will be introduced to the ethical implications of AI integration into lighting practice that should be considered before adoption becomes widespread.read more
Glenn ShrumAssociate Professor/Founding Principal, Parsons School of Design/Flux Studio
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Fri 8/14 · 11:30 AM - 12:30 PM
Daylight in Transition: Digital Workflows, Human Health, and the View Outside
● Speaker Session
Room not listed on conference website
The science and practice of daylighting are both rapidly evolving.The science and practice of daylighting are both rapidly evolving. This expert panel will discuss the recent comprehensive update of “LP‑3: Daylight in Buildings,” and its alignment with digital workflows and “LM‑83: Approved Method: IES Spatial Daylight Autonomy (sDA) and Annual Sunlight Exposure (ASE)”; emerging evidence of daylighting health impacts beyond the visible spectrum; and new research on window views as a quantifiable dimension of daylight quality.read more
Lisa HeschongAuthor, researcher, Heschong Mahone Group (Retired)
Dan WeissmanAssociate Principal / Dir of Lam Labs, Lam Partners
Won Hee KoAssistant Professor, New Jersey Institute of Technology
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Fri 8/14 · 11:30 AM - 12:00 PM
Endogenously Triggered Visual Gamma Stimulation for Alzheimer's Disease
● Paper/Technical Presentation
📍 Mt. Oxford
This presentation introduces a ground-breaking technology that induces gamma stimulation without visible flickering, with potential benefits for memory/cognition improvement.This presentation introduces a ground-breaking technology that induces gamma stimulation without visible flickering, with potential benefits for memory/cognition improvement. It can be seamlessly integrated into many lighting applications for a variety of indoor environments such as senior centers, long-term care facilities, and any residential settings. This technology helps create healthier indoor environments for potential Alzheimer’s disease prevention and memory improvement.read more
Judy LuoWellness Lighting R&D Manager, Aleddra LED Lighting
Matthew MaaCEO, Aleddra LED Lighting
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Fri 8/14 · 11:30 AM - 12:00 PM
Parametric Analysis of A 3D Printed Baffle Optics Geometry for Glare Reduction and Tailoring Output Beam Intensity Distribution
● Paper/Technical Presentation
📍 Mt. Princeton
Advancements in 3D printing technology are enabling the development of customized optical structures for lighting applications. This capability allows designers to fabricate complex geometries that are difficult to achieve using conventional manufacturing methods.Advancements in 3D printing technology are enabling the development of customized optical structures for lighting applications. This capability allows designers to fabricate complex geometries that are difficult to achieve using conventional manufacturing methods. Such flexibility supports the exploration of innovative optical components that can modify light distribution, improve illumination uniformity, and enhance the performance of modern LED lighting systems.read more
Harithra NavaratnamGraduate Student & Research Assistant, Lighting Research Center, Rensselaer Polytechnic Institute
Narendran NadarajahProfessor, Architecture and Physics & Dir of Research, Lighting Research Center, Rensselaer Polytechnic Institute
Bridging the Luminance Gap_ A Reliability Assessment of Smartphone-Based HDR Luminance Analysis for Professional Lighting Practice
● Paper/Technical Presentation
📍 Mt. Princeton
While luminance mapping is vital for human perception, professional gear is often cost-prohibitive. Fusion Optix offers a mobile solution, but is it accurate? Our research at Parsons benchmarks this app against scientific standards to define its precision.While luminance mapping is vital for human perception, professional gear is often cost-prohibitive. Fusion Optix offers a mobile solution, but is it accurate? Our research at Parsons benchmarks this app against scientific standards to define its precision. By quantifying error margins, we empower designers to use accessible tech with confidence, bridging the gap between sterile data and lived human experience.read more
Craig A BerneckerDir, The New School
Hemkar SharmaStudent, The New School
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Fri 8/14 · 12:00 PM - 12:30 PM
When Light Becomes a Barrier: Field Evaluation of Interior Lighting Challenges for Low Vision Users
● Paper/Technical Presentation
Room not listed on conference website
How do glare, abrupt lighting transitions, and low-contrast wayfinding affect people with low vision? Over three terms, undergraduate students wearing simulation goggles evaluated five space types in institutional buildings. Five perceptual barriers recurred across all cohorts.How do glare, abrupt lighting transitions, and low-contrast wayfinding affect people with low vision? Over three terms, undergraduate students wearing simulation goggles evaluated five space types in institutional buildings. Five perceptual barriers recurred across all cohorts. This presentation shares findings, design recommendations aligned with RP-28-25, and reflections on simulation as a pedagogical tool for lighting education.read more
Miyoung HongAssistant Professor, University of Tennessee, Knoxville
Lunch and LightJustice NOW Awards will take place in the Aspen Ballroom. Table top exhibits will be open throughout lunch in the Colorado and Aspen Foyers.Lunch and LightJustice NOW Awards will take place in the Aspen Ballroom.
Table top exhibits will be open throughout lunch in the Colorado and Aspen Foyers.
The Light Justice NOW Awards celebrate architectural lighting design and implementation that positively impacts the visual environment for underserved and marginalized communities. Collaboratively administered by Light Justice and designing lighting (dl) magazine, this program recognizes exceptional built projects and community-led initiatives that move beyond aesthetics to prioritize social and environmental equity. The work recognized by this awards program is characterized by deep stakeholder engagement, demonstrating how thoughtful investments in quality lighting and "beneficial darkness" can improve safety, well-being, and dignity in often-overlooked spaces like neighbourhoods, public housing, schools, and community centers. By honoring those who overcome significant budgetary and logistical constraints to serve under-resourced populations, the awards aim to transform lighting into a universal tool for justice and community empowerment.read more
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Fri 8/14 · 12:30 PM - 2:00 PM
Poster Session Presentations
● General
📍 Aspen Ballroom
Built for you by(617)-PATRICK, Champion AI speaker
Controlled-Environment Evaluation of Sidewalk Lighting: Pedestrian Visibility, Glare, Safety Perception, and Trip-Hazard Detection
● Paper/Technical Presentation
Room not listed on conference website
Controlled field study of sidewalk lighting at Virginia Tech Transportation Institute (VTTI) smart Roads (N=48) quantifying pedestrian conspicuity, trip-hazard detection, discomfort glare, and perceived safety/comfort under road-scale vs pedestrian-scale distributions.Controlled field study of sidewalk lighting at Virginia Tech Transportation Institute (VTTI) smart Roads (N=48) quantifying pedestrian conspicuity, trip-hazard detection, discomfort glare, and perceived safety/comfort under road-scale vs pedestrian-scale distributions. Results show diminishing returns beyond moderate illuminance, pedestrian-scale efficiency at lower lux, and head/torso contrast outperforming illuminance ratio as a predictor.read more
RUGVED KORESenior Research Associate, Virginia Tech Transportation Institute
Ronald GibbonsDir of the Program for Infrastructure Based Safety Systems (PIBSS), Virginia Tech Transportation Institute
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Fri 8/14 · 2:00 PM - 2:30 PM
How Much View Is Enough? Linking View Satisfaction to Energy Impacts in Buildings
● Paper/Technical Presentation
📍 Mt. Princeton
Discover how window design balances well-being and sustainability. Using VR and energy simulations, this study reveals that high-quality, nature-inclusive views require only a 25% window-to-wall ratio (WWR) for occupant satisfaction, cutting energy use by 8%.Discover how window design balances well-being and sustainability. Using VR and energy simulations, this study reveals that high-quality, nature-inclusive views require only a 25% window-to-wall ratio (WWR) for occupant satisfaction, cutting energy use by 8%. While a 45% WWR is the "energy-neutral" sweet spot, deeper spaces may need more. Learn to use our View Access Index to optimize facades for both occupant well-being and building energy efficiency.read more
Won Hee KoAssistant Professor, New Jersey Institute of Technology
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Fri 8/14 · 2:00 PM - 3:00 PM
How Spaces Now Experience People—and What That Means for Dynamic Lighting
● Speaker Session
Room not listed on conference website
Lighting design is evolving beyond static scenes and assumed use patterns. New spatial sensing technologies allow environments to perceive real human movement and social behavior, enabling lighting to dynamically respond in real time.Lighting design is evolving beyond static scenes and assumed use patterns. New spatial sensing technologies allow environments to perceive real human movement and social behavior, enabling lighting to dynamically respond in real time. This session explores the magic of how spaces can now “experience” people and how dynamic lighting becomes an active placemaking tool that shapes gathering, movement, comfort, and safety. See real-world examples of behavior-responsive lighting and be inspired.read more
Robert PopeFounder / Principal, Digital Ambiance
Eben BergCOO/Partner, Digital Ambiance
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Fri 8/14 · 2:00 PM - 3:00 PM
Light Justice in Practice: Panel Discussion
● Panel Discussion
Room not listed on conference website
The Light Justice NOW awards highlight lighting-design initiatives that deliver meaningful, measurable benefits to underserved and marginalized communities.The Light Justice NOW awards highlight lighting-design initiatives that deliver meaningful, measurable benefits to underserved and marginalized communities. In this 60-minute moderated panel, the 2026 award recipients will present their projects and initiatives, discussing design strategies, community engagement, safety, affordability, and sustainability. The session offers practical insights on applying socially equitable lighting design in real-world settings.read more
Neha SivaprasadPrincipal at Sol Light Studio + Associate Director at Light Justice, Sol Light Studio + Light Justice
Jennie Cannon WestFounder and Principal, Studio West Design
Kate Sweater HickcoxEnergy & Environment Research Scientist, Pacific Northwest National Laboratory (PNNL)
How Amber vs. White Road Lighting Affects Obstacle Detection, Color Perception, and Path Visibility: Insights from a Norwegian Field Study
● Paper/Technical Presentation
📍 Mt. Oxford
This study presents an in situ field experiment conducted in Norway comparing 1800 K PC amber and 3000 K white LED road lighting across a set of driver and pedestrian relevant visual tasks
Alp DurmusAssistant Professor, Pennsylvania State University
Terje ChristensenProfessor, Oslo University Hospital, Oslo, Norway
Helga Iselin WåsethPhD student, University of South-Eastern Norway, Norway
Veronika ZaikinaPhD, Associate Professor, University of South-Eastern Norway, Norway
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Fri 8/14 · 2:30 PM - 3:00 PM
Non-Intrusive Assessment of Daylight Preferences Using Deep Learning
● Paper/Technical Presentation
📍 Mt. Princeton
Luminance monitoring within the field of view is required for assessing visual comfort and overall visual preferences, but it is practically challenging and intrusive.Luminance monitoring within the field of view is required for assessing visual comfort and overall visual preferences, but it is practically challenging and intrusive.
This technical presentation will demonstrate a basis for future studies to assess the effect of visual environment on human perception using non-intrusive measurements.read more
Designing Supportive Environments for the Visually Impaired and Aging: Updates to and Best Practices for Applying RP-28
● Speaker Session
Room not listed on conference website
As the world’s population ages, we need to design environments to be visually inclusive for a wider range of users.As the world’s population ages, we need to design environments to be visually inclusive for a wider range of users. Using IES RP-28-25 we share the latest information being researched, developed, and applied to environments for older adults and the visually impaired. We will provide the tools for attendees to explore the effects of common visual issues and examine various design scenarios to understand how each can be improved to address low vision design challenges and best practices.read more
Learn Your ABC’s: Lighting for Pediatric Facilities
● Speaker Session
Room not listed on conference website
Pediatric facilities come in various sizes, forms and functions. They advanced tremendously in the last few years and have become more specialized in serving various health issues: Oncology, Blood disorders and behavioral health are just few examples.Pediatric facilities come in various sizes, forms and functions. They advanced tremendously in the last few years and have become more specialized in serving various health issues: Oncology, Blood disorders and behavioral health are just few examples.
In this seminar, you will learn about different pediatric facilities and the lighting requirements for each facility.read more
Paul DanielLighting Design Section Manager, HDR
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Fri 8/14 · 3:05 PM - 3:35 PM
Structured-Light Sensing (SLS) – based Occupancy Detection: A Low Cost, Privacy-Preserving Alternative to Motion Sensors
● Paper/Technical Presentation
📍 Mt. Oxford
This session presents a low-cost, privacy-preserving structured-light approach for indoor occupancy detection in lighting control applications. Traditional motion-based sensors often struggle to reliably detect stationary occupants, leading to false-off events and occupant dissatisfaction.
Pradip PaneruGraduate student, University of Cincinnati
Arpan GuhaAssistant Professor, University of Cincinnati
Built for you by(617)-PATRICK, Champion AI speaker
An Optimization Framework for Considering Melanopic Equivalent Daylight Illuminance in Lighting Design
● Paper/Technical Presentation
Room not listed on conference website
Lighting design has traditionally focused on visibility and perceptual goals, but recent research highlights the impact of lighting on mental and physical health has encouraged designers to consider circadian needs. However, circadian goals may conflict with typical lighting constraints.Lighting design has traditionally focused on visibility and perceptual goals, but recent research highlights the impact of lighting on mental and physical health has encouraged designers to consider circadian needs. However, circadian goals may conflict with typical lighting constraints. To address this, we developed an optimization framework for lighting design which incorporates melanopic equivalent daylight illuminance while balancing illuminance, luminance, and source efficacy goals.read more
Kendall BaertleinStudent, University of Colorado Boulder
Jennifer ScheibAssociate Teaching Professor, University of Colorado Boulder
Kyri BakerAssociate Professor, University of Colorado Boulder
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Fri 8/14 · 3:35 PM - 4:05 PM
Bluetooth NLC - A Decade of Evolution and the Roadmap Ahead
● Paper/Technical Presentation
📍 Mt. Oxford
First-hand dive into Bluetooth NLC from the Chair of the Bluetooth SIG mesh working group, with practical guide to building Bluetooth NLC products, followed by a glimpse into the future roadmap of this continuously evolving technology.
A Systematic Review of Studies Underpinning Non-Visual Effects Lighting Recommendations: Methodological Gaps and Research Implications
● Paper/Technical Presentation
📍 Mt. Oxford
This presentation examines the scientific evidence underpinning current lighting recommendations by systematically reviewing 156 experimental studies.This presentation examines the scientific evidence underpinning current lighting recommendations by systematically reviewing 156 experimental studies. The findings reveal key methodological gaps, including small sample sizes, protocols focused on nighttime, and limited population diversity, which may limit the applicability of existing guidance. The talk highlights implications for lighting practice and outlines priorities for future research to strengthen the evidence-based support.read more
Yahya SogodokStudent, Oregon State University
Clotilde PiersonAssistant Professor of Architectural Engineering, Oregon State University
Nima Ghorbanian MatloobMaster's Student in Architectural Engineering – Lighting Track, Oregon State University
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Fri 8/14 · 4:20 PM - 5:20 PM
Designing Atmospheres: Light, Space, and the Human Experience
● Speaker Session
Room not listed on conference website
Explore the “atmospheric turn” in design—where aesthetic and sensory experience converge to shape spaces that resonate beyond function. Philosophically, atmospheres offer a timely framework for inspiring our work as lighting designers, architects, and engineers.Explore the “atmospheric turn” in design—where aesthetic and sensory experience converge to shape spaces that resonate beyond function. Philosophically, atmospheres offer a timely framework for inspiring our work as lighting designers, architects, and engineers. Join us to explore practical design strategies supported by case studies to deepen our creative practice, enrich client dialogue, and restore architecture’s power to move people.read more
From Illuminance to Experience: Validating Mobile Luminance Capture as a Bridge Between Quantitative Metrics and Human-Centric Lighting Design
● Paper/Technical Presentation
Room not listed on conference website
Designing for people means measuring what they see, not just light on a floor. Current practice favors illuminance (lux) for code compliance, but this fails to reflect human perception.Designing for people means measuring what they see, not just light on a floor. Current practice favors illuminance (lux) for code compliance, but this fails to reflect human perception. Luminance (cd/m²) is a superior metric for experience yet remains inaccessible due to cost. This research bridges the gap between intent and measurement through qualitative surveys and quantitative validation. By testing mobile mapping, it aims to shift the industry toward a human-centric framework.read more
Francesca BastianiniFaculty Parsons School of Design, Parsons School of Design
Craig A BerneckerDir, The New School
Hemkar SharmaStudent, The New School
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Fri 8/14 · 4:20 PM - 5:20 PM
Revisiting GATEWAY Field Evaluations: A look at the long-term performance of LED systems installed between 2008 - 2021
● Speaker Session
Room not listed on conference website
The Department of Energy’s SSL GATEWAY program, led by Pacific Northwest National Laboratory (PNNL), was started in 2008 with the goal of studying high-performance LED products in real-world settings.The Department of Energy’s SSL GATEWAY program, led by Pacific Northwest National Laboratory (PNNL), was started in 2008 with the goal of studying high-performance LED products in real-world settings. This presentation will provide an overview of 40+ project sites to illustrate technological progress across generations of LEDs, with an update on many projects, including if the systems are meeting end-user expectations for energy savings, reliability, and lighting quality.read more
Sarah SafranekLighting Engineer, PNNL
Andrea WilkersonResearch Engineer, PNNL
Built for you by(617)-PATRICK, Champion AI speaker
Are We Ready for the Emerging Unmanned Aircraft Systems (UAS) Deployment in Work Zone Lighting Applications
● Paper/Technical Presentation
📍 Mt. Princeton
Are We Ready for the Emerging Unmanned Aircraft Systems (UAS) Deployment in Work Zone Lighting Applications? This research reviewed the background and technical specifications of conventional work zone lighting and the emerging deployment of UAS in work zone lighting applications.Are We Ready for the Emerging Unmanned Aircraft Systems (UAS) Deployment in Work Zone Lighting Applications? This research reviewed the background and technical specifications of conventional work zone lighting and the emerging deployment of UAS in work zone lighting applications. Challenges and benefits for UAS deployment in transportation and construction site lighting were analyzed, together with recommended specifications for UAS lighting equipment and controls.read more
Hongyi CaiAssociate Professor, University of Kansas
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Fri 8/14 · 4:50 PM - 5:20 PM
Bridging the Gap Between Standards and Practice with RAG-Based AI
● Paper/Technical Presentation
Room not listed on conference website
Are you tired of spending hours digging through complex IES standards? Join us for an exclusive session on the future of lighting engineering!Are you tired of spending hours digging through complex IES standards? Join us for an exclusive session on the future of lighting engineering!
Discover how our new AI-powered chatbot, built with cutting-edge Retrieval-Augmented Generation (RAG), provides instant, cited answers grounded in verified IES data. This isn't just another general AI—it’s a precision tool designed to streamline your workflow and ensure 100% compliance.read more
Start your day with a run from the hotel to the beautiful Cherry Creek. Route will be 2-3 miles with pacing for beginners through advanced runners.
Note: Please remember we are in higher altitude and hydrate properly.
Ambient Light Spectrum Modulates Acute Stress Recovery: Evidence from EEG and Salivary Biomarkers
● Paper/Technical Presentation
📍 Mt. Oxford
Ambient lighting shapes comfort and mood, yet its role in acute stress recovery remains unclear. In a controlled laboratory study using the Trier Social Stress Test, participants recovered under red, green, blue, amber, or white light.Ambient lighting shapes comfort and mood, yet its role in acute stress recovery remains unclear. In a controlled laboratory study using the Trier Social Stress Test, participants recovered under red, green, blue, amber, or white light. EEG, salivary cortisol, alpha amylase, and preference ratings were measured. Amber was perceived as most relaxing and produced the strongest neural recovery, outperforming white light, indicating spectral differences in stress recovery.read more
Seonghyuk SonPh.D., Clemson University
Jae Yong SukProfessor / Dir, University of California, Davis
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Sat 8/15 · 9:00 AM - 10:00 AM
Lighting Design in Education Environments: Circadian Rhythm Edition
● Speaker Session
Room not listed on conference website
This session explores visibility, visual comfort, and circadian impact, offering practical strategies for K–12 educational environments and highlighting the challenges of limited daylight in northern regions.This session explores visibility, visual comfort, and circadian impact, offering practical strategies for K–12 educational environments and highlighting the challenges of limited daylight in northern regions. It emphasizes how lighting serves as a holistic design tool that extends beyond metrics to support human‑centric outcomes.read more
Alexey KalininSenior electrical Engineer, Stantec
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Sat 8/15 · 9:00 AM - 10:00 AM
Storytelling for Technical Credibility: How to Get Your Work Adopted
● Speaker Session
Room not listed on conference website
Lighting is deeply technical—but it doesn’t have to feel confusing. This session gives lighting professionals a clear, repeatable way to translate spectrum, metrics, controls, and performance into language that clients and collaborators actually understand.Lighting is deeply technical—but it doesn’t have to feel confusing. This session gives lighting professionals a clear, repeatable way to translate spectrum, metrics, controls, and performance into language that clients and collaborators actually understand. Learn how to communicate with clarity, protect intent, and help good work get adopted—without dumbing it down.read more
Sam KoerbelFounder, Lytei
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Sat 8/15 · 9:00 AM - 5:00 PM
The Power of Lighting Mockups: Validating Color, Distribution, and Performance
● Experience Room
Room not listed on conference website
The Power of Lighting Mockups: Validating Color, Distribution, and Performance is a hands-on workshop focused on testing light before construction.The Power of Lighting Mockups: Validating Color, Distribution, and Performance is a hands-on workshop focused on testing light before construction. Through three real-world mockups—experiential interior lighting, outdoor art, and healthcare applications—participants evaluate how color, optics, and distribution perform in physical space and learn when and how mockups improve visual comfort, reduce risk, and strengthen design outcomes beyond calculations alone.read more
Brennan SchumacherPrincipal / Lighting Design Practice Lead, Mazzetti
Chris DavisAssociate, The Lighting Agency
Built for you by(617)-PATRICK, Champion AI speaker
Physiological and Emotional Effects of Integrative Lighting Assessed Through Multidimensional Measures in Immersive VR
● Paper/Technical Presentation
📍 Mt. Oxford
A 2x2 experimental study in a VR workplace examines how integrative lighting affects physiological and emotional responses by manipulating melanopic illuminance and spectral quality. Results indicate that blue-enriched, high-mel-EDI lighting boosts arousal, alertness, vitality, and engagement without raising stress.A 2x2 experimental study in a VR workplace examines how integrative lighting affects physiological and emotional responses by manipulating melanopic illuminance and spectral quality. Results indicate that blue-enriched, high-mel-EDI lighting boosts arousal, alertness, vitality, and engagement without raising stress. The study underscores the importance of multimodal measurement and shows that well-designed integrative lighting can enhance alertness and well-being in immersive environments.read more
An Approach for Analytic Model of the Spectral Dependence of Phantom Array Visibility
● Paper/Technical Presentation
📍 Mt. Oxford
A new analytic model of the phantom array visibility using L-,. M-, and S- cone light response characteristics by time constant in retina visual signal integration.
Chan-Su LeeProfessor, Yeungnam University
Insuk OhResearch Professor, Yeungnam University
☆
Sat 8/15 · 10:05 AM - 11:05 AM
LP-10: Lighting for Sustainability: Overview and Action
● Speaker Session
Room not listed on conference website
The IES Sustainable Lighting Committee has spent the last 5 years significant update to LP-10 Lighting Practice: Sustainable Lighting – An Introduction to the Environmental Impacts of Lighting, which is anticipated for publication in 2026.The IES Sustainable Lighting Committee has spent the last 5 years significant update to LP-10 Lighting Practice: Sustainable Lighting – An Introduction to the Environmental Impacts of Lighting, which is anticipated for publication in 2026. The revised LP covers sustainability lighting design in practice, life cycle embodied and operation carbon, materials health and framework for goal setting. The document is written to provide guidance and context to everyone in the lighting industry.read more
Alexandra ChristianaAssociate and Sustainability Leader, HMFH Architects
Pedestrian Lighting in Urban Forests - A Multidisciplinary Perspective
● Paper/Technical Presentation
📍 Mt. Princeton
How much light is needed for pedestrians to use urban forests after dark, how can we minimize the impact of lighting on skyglow and wildlife?How much light is needed for pedestrians to use urban forests after dark, how can we minimize the impact of lighting on skyglow and wildlife? The objective of this project was to address concerns related to human needs and wildlife ecology by better understanding options, processes, and outcomes when adjusting and lowering illumination in urban forest areas. Over four years, researchers from six different disciplines collected information relevant for planning, design, and application.read more
Ute BeseneckerAssociate Professor, RPI
☆
Sat 8/15 · 10:05 AM - 11:05 AM
Who Is the Integrator—and Why Your Lighting Project Depends on Them
● Speaker Session
Room not listed on conference website
Lighting control systems rely on more than technology alone—the success of a project often depends on the lighting controls integrator. This session explains who integrators are, what they do, and how they bridge design intent, engineering documentation, and field execution.Lighting control systems rely on more than technology alone—the success of a project often depends on the lighting controls integrator. This session explains who integrators are, what they do, and how they bridge design intent, engineering documentation, and field execution. Attendees will gain insight into why early integrator involvement can reduce risk, improve system performance, and support long-term usability.read more
This study investigates how the way light is delivered shapes immersive experience and physiological response. Using controlled lab conditions, it compares theatrical fixtures, projection, and LED screens across static and dynamic scenarios while holding photometric qualities constant.This study investigates how the way light is delivered shapes immersive experience and physiological response. Using controlled lab conditions, it compares theatrical fixtures, projection, and LED screens across static and dynamic scenarios while holding photometric qualities constant. By pairing self-reported immersion with heart rate variability data, the research reveals how delivery technology itself influences perception, informing more experience-driven lighting design.read more
Francesca BastianiniFaculty Parsons School of Design, Parsons School of Design
Responsible manufacturing. Replaceable components. Controls Integration. These are all topics that we discuss daily in our lighting world. Yet so many questions remain unanswered, so many sides to the problems.Responsible manufacturing. Replaceable components. Controls Integration. These are all topics that we discuss daily in our lighting world. Yet so many questions remain unanswered, so many sides to the problems. Which is why we are convening all our lighting nerd brains into one room to talk about the hard problems in our industry and to come up with bright ideas. Rachael Fitzgerald, Naomi Miller, and Steve Bedard will pose the issues, and some possible solutions and then we will discuss by table. Join us for a lively conversation.read more
Naomi Miller
Built for you by(617)-PATRICK, Champion AI speaker
Innovation in the art of luminaires’ lensed optics delivers light to where light belongs. Regardless of the application, the game changing optical lensing technology shows maximum vertical light intensity at a person's eye level.Innovation in the art of luminaires’ lensed optics delivers light to where light belongs.
Regardless of the application, the game changing optical lensing technology shows maximum vertical light intensity at a person's eye level. As a result, one can expect reductions in energy, labor, material, and operational costs. Furthermore, while direct glare is significantly reduced, shopper/worker visual acuity, visual comfort, and safety is enhanced. The lensed optics is primely suited for mid and higread more
Daniel SpiroPresident, Exposure Illumination Architects Inc.
Igniting Creativity: Empowering Innovation in Projects, Processes, and Leadership
● Speaker Session
Room not listed on conference website
Explore how to reignite creativity in an increasingly fast-paced and deadline‑driven industry. This session provides actionable strategies to embed creativity into lighting design projects, processes, and strategies for engagement and enhancing team culture.Explore how to reignite creativity in an increasingly fast-paced and deadline‑driven industry. This session provides actionable strategies to embed creativity into lighting design projects, processes, and strategies for engagement and enhancing team culture. Participants will learn techniques to generate fresh ideas, support innovation, and enhance the value of design in a technically driven industry.read more
This technical presentation provides a step-by-step walkthrough of the process used to calculate luminance contrast. Understanding this calculation is crucial, especially for older individuals who experience low vision.This technical presentation provides a step-by-step walkthrough of the process used to calculate luminance contrast. Understanding this calculation is crucial, especially for older individuals who experience low vision. Many jurisdictions are now referencing the IES as the authoritative body for establishing lighting standards. The focus on luminance contrast represents the next phase in providing improved lighting solutions and guidelines for public and private environments.read more
Colleen PeachSenior Associate, PAE/LUMA
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Sat 8/15 · 1:30 PM - 2:30 PM
Updates on ANSI/IES RP-38 Lighting for Videoconference and Presentation
● Speaker Session
Room not listed on conference website
This session is an overview of a revised ANSI/IES RP-38, Lighting for Videoconference and Presentation, to consider the lighting design choices that result in effective video images for improved interpersonal communications.
Investigating Mean Room Surface Exitance (MRSE) as a Complementary Metric to Horizontal Illuminance
● Paper/Technical Presentation
📍 Mt. Oxford
This study challenges the long-standing reliance on horizontal illuminance as the primary measure of lighting adequacy. While task-plane metrics guide standards, people perceive brightness through illuminated surfaces.This study challenges the long-standing reliance on horizontal illuminance as the primary measure of lighting adequacy. While task-plane metrics guide standards, people perceive brightness through illuminated surfaces. Using controlled classroom simulations, the research compares luminaire types and surface reflectance conditions to show how similar illuminance can produce very different spatial experiences, advancing Mean Room Surface Exitance as a more perceptually aligned lighting metric.read more
Designing with the Brain in Mind: Neurodiversity-Informed Lighting and Building Systems for Behavioral Health Environments
● Speaker Session
Room not listed on conference website
Behavioral health environments demand a different design approach. This session explores how lighting, when closely coordinated with mechanical and plumbing systems, can support sensory regulation, reduce agitation, and promote dignity and safety.Behavioral health environments demand a different design approach. This session explores how lighting, when closely coordinated with mechanical and plumbing systems, can support sensory regulation, reduce agitation, and promote dignity and safety. Through case studies including UCSF Benioff Children’s Hospital, attendees will gain practical strategies for designing calmer, more humane behavioral health spaces.read more
Brian HansPrincipal / Senior Mechanical Engineer, Mazzetti
Lauren SchwadeAssociate Principal / Healthcare Lighting Lead, Mazzetti
Effects of Informational Exposure and Lighting Spectrum on Subjective Acceptance and Visual Performance
● Paper/Technical Presentation
📍 Mt. Oxford
This study examines how nighttime lighting spectrum and illuminance affect visual performance and subjective acceptance. Comparing amber and white lighting under low-light conditions, it evaluates color perception, facial recognition, and user comfort.This study examines how nighttime lighting spectrum and illuminance affect visual performance and subjective acceptance. Comparing amber and white lighting under low-light conditions, it evaluates color perception, facial recognition, and user comfort. It also investigates whether information about light pollution increases acceptance of dim, warm-spectrum lighting. The findings support evidence-based nighttime lighting design that balances environmental responsibility with human visual needs.read more
YUE LIUPhD, Pennsylvania University
Alp DurmusAssistant Professor, Pennsylvania State University
☆
Sat 8/15 · 2:35 PM - 3:35 PM
Protect Your Spec: How 'Equal' Fixtures Get Value Engineered (And How to Stop It)
● Speaker Session
Room not listed on conference website
Not all ‘equal’ fixtures are created equal. Substitutions can quietly erode design intent. Learn how to verify true equivalency, catch red flags in submittals, and protect lighting performance from value engineering.Not all ‘equal’ fixtures are created equal.
Substitutions can quietly erode design intent. Learn how to verify true equivalency, catch red flags in submittals, and protect lighting performance from value engineering. Gain actionable strategies for evaluating submittals, defining “equal” beyond lumens, and writing luminaire schedules that reduce substitution risk before it’s installed.read more
Kaitlin PageSenior Engineer, CD Companies
Built for you by(617)-PATRICK, Champion AI speaker
A Pilot Study Exploring the Effects of Background Chromaticity on Reaction Time in a Screen-Based Number Discrimination
● Paper/Technical Presentation
📍 Mt. Oxford
Ten observers completed 128 two-alternative forced-choice number discrimination trials under blue, red, green, and white backgrounds. Luminance varied (14.67–204.2 cd/m²), with Weber contrast lowest on red and highest on white.Ten observers completed 128 two-alternative forced-choice number discrimination trials under blue, red, green, and white backgrounds. Luminance varied (14.67–204.2 cd/m²), with Weber contrast lowest on red and highest on white. A repeated-measures ANOVA showed a significant effect of background color on reaction time (pread more
Arpan GuhaAssistant Professor, University of Cincinnati
Jackson HanusPhD Student, University of Cincinnati
Eight participants. Four live debates. One bracket. LightCenter puts some of the industry's contested lighting questions on trial, with participants arguing sides they may never pick themselves.Eight participants. Four live debates. One bracket. LightCenter puts some of the industry's contested lighting questions on trial, with participants arguing sides they may never pick themselves. The audience votes live after every round, sending two finalists to a championship topic revealed only when they hit the stage. Fast, funny, and built on real unresolved debates in our field.
Moderators: Dave Young and Amanda Schanemanread more
Dave YoungNational Controls Sales Manager, Traxon Technologies
A large body of literature implicates harm from blue and UV light. Yet the same wavelengths activate recently discovered non-visual opsins essential for health.A large body of literature implicates harm from blue and UV light. Yet the same wavelengths activate recently discovered non-visual opsins essential for health. This talk unpacks the “blue light paradox,” weighing biological risk against physiological benefit, highlighting measurement challenges, and reframing how we study and design light. The session is intended to stimulate thoughtful discussion among researchers, engineers, and standards leaders shaping the future of light and health.read more
James GreenbergProfessor and Co-Dir, Science of Light Center/Cincinnati Children's Hospital Medical Center
Dave TheusCEO, Cincinnati Children's Innovation Ventures/Lumenaros
🤖 Let AI help you determine which sessions to attend
Download the full session list and paste it into Claude (claude.ai).
Then paste a prompt like the example below — it gives the AI a role, context about the data, and a clear task.
Tip: This is a large session list. Claude (claude.ai) handles the full file reliably. Other tools like ChatGPT and Gemini may silently cut off the data — the verification step in the prompt will catch that.
Example prompt:
ROLE: Expert conference advisor for IES26: The Lighting Conference attendees CONTEXT: I'm pasting over 50 sessions for the IES26: The Lighting Conference.
I work in lighting - design, research, or specification. I want the technical papers most relevant to my practice, sessions on human-centric and daylighting topics, and good networking with other lighting professionals. GOAL: Pick the top 10 sessions for me. OUTPUT FORMAT: List in chronological order. Do NOT number them sequentially.
Instead, start each entry with its relevance rank in bold, like: Rank #3 of over 50 — Session Title.
Follow with the day and time, then 2-3 sentences on why it fits my goals. VERIFICATION: Before answering, confirm how many sessions you received.
You should have at least 50. If you received significantly fewer,
tell me immediately — my paste was probably truncated.
😎 How cool am I? 😎
Which sessions are right for you?
Describe yourself and what you want from IES26: The Lighting Conference. The more specific you are, the better this works.
You can also say how many you want or when you're free — “just my top 3”, “give me 20”, “only Friday afternoon”. You get 10 unless you ask for more.
There's a daily limit on the phone version, so it can stay free for everyone at the event. You can run it as many times as you want using your own AI account at home: scroll down, tap Copy prompt, and paste it into Claude, ChatGPT or Gemini — free or paid account, the same session list, no daily limit.
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