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Tuesday, September 15
 

10:00am CDT

Humanizing the Night, A Practical Vision for Safer, More Vibrant, Illuminated Cities - Opening Keynote Session with Leni Schwendinger
Tuesday September 15, 2026 10:00am - 11:00am CDT
Leni has offered pioneering viewpoints to lighting designers and affiliates for more than two decades. She encourages the international community to broaden its perspectives and deepen its own insights with the goal of sharing a seat at the decision-making table. Humanizing the Night is her latest speech, crafted to open the minds of lighting and civic professionals to consider urban spaces as critical “luminous rooms” for city dwellers after dark. She makes the case for designers to join the emerging, twin disciplines of urban lighting and nighttime design.

Personal and professional, in this poetic, provocative, and practical keynote, urban lighting expert Leni Schwendinger shares how creative illumination, plus key decision-making, transforms cities after sunset into safer, vibrant, and more inclusive places: placemaking after dark.


LEARNING OBJECTIVES:
  • Learn about the trend to consider nighttime as a “place”. Participants will be introduced to the critical need to design safer, more welcoming nighttime public spaces by addressing exterior lighting as an infrastructural system.
  • Take home an expanded vocabulary to address clients in the civic ecosystem of planners, transportation agencies, downtown organizations, business districts, public health leaders, developers, arts organizations, and residents.
  • Learn community participation approaches in lighting decisions applicable to creative lighting masterplans.
  • Advanced understanding: Examples of policies and pilots that have transformed cities worldwide to strengthen the urban lighting community’s nighttime design expertise
Speakers
avatar for Leni Schwendinger

Leni Schwendinger

Creative Director | Leader, Leni Schwendinger Light Projects LLC
Leni Schwendinger, an artist, designer, urbanist, and professional speaker, and founder of Leni Schwendinger Light Projects, divides her time between Manhattan and London. With more than 20 years of worldwide experience creating illuminated environments. Her innovative interdisciplinary... Read More →
Tuesday September 15, 2026 10:00am - 11:00am CDT
Education Station @ ArchLIGHT Summit Show Floor

12:00pm CDT

A Proposed Two-Parameter Approach To Recommended Lighting Levels
Tuesday September 15, 2026 12:00pm - 1:00pm CDT
Illuminance, measured in foot-candles or lux, has long been the metric used to recommend lighting levels for specific applications.  From Waldram’s Designed Appearance Method to Cuttle’s Mean Room Surface Exitance (MRSP) approach, there has been considerable interest over the years in moving away from illuminance as a basis for lighting design in favor of luminance and exitance.

This session will provide participants with a perspective of illuminance recommendations over time, along with a bit of history of some of the approaches to design criteria beyond illuminance. But it then takes the perspective that two metrics are likely necessary to adequately address end users’ perception of the adequacy of illumination in various applications.

This paper explores the combination of illuminance and MRSP in a systematic way through a series of analyses of representative applications to determine the efficacy of these metrics for lighting design recommendations and practice. Both illuminance and MRSE are determined for a series of scenarios using multiple room sizes, reflectances, and lighting systems for several application types (e.g., office, classroom, conference room, etc.). Proposed recommendations for these two parameters are then suggested for a variety of applications.

Speakers
avatar for Craig Bernecker

Craig Bernecker

Professor, Parsons School of Design
Dr. Bernecker has been a lighting educator for over 40 years. He is founder of The Lighting Education Institute, providing professional education, and Professor of Lighting Design and Director of the Masters of Fine Arts in Lighting Design program at Parsons School of Design, The... Read More →
Tuesday September 15, 2026 12:00pm - 1:00pm CDT
Education Station @ ArchLIGHT Summit Show Floor

4:00pm CDT

“Selectable” Lighting: One Size May Not Fit All
Tuesday September 15, 2026 4:00pm - 5:00pm CDT
In recent years there has been a proliferation of LED products with combined attributes of selectable wattage, CCT, beam angles, etc. A primary benefit of integrating these features is a reduction in the SKU or part numbers for manufacturers and suppliers, but is it beneficial to the design community?  In this panel discussion which brings perspectives from the lighting design and lighting manufacturer’s perspectives, we compare and contrast selectable lighting attributes in luminaires and consider which applications may benefit and where the use of a “one size fits most” lighting approach should be avoided. 

Speakers
avatar for Michael Lunn

Michael Lunn

HALO Product Marketing Manager, Cooper Lighting Solutions
Michael Lunn is a seasoned professional in the lighting industry, currently serving as the Product Marketing Manager for the HALO Recessed Product Line at Cooper Lighting Solutions. His extensive experience includes leadership roles at Eaton - Lighting and various technical support... Read More →
avatar for Paula Ziegenbein

Paula Ziegenbein

Principal, Hartranft Lighting Studios
Paula Ziegenbein discovered her passion for lighting as an undergraduate in electrical engineering, inspired by a professor’s course on Illumination Engineering. This sparked a 25-year career with OSRAM SYLVANIA, where she held leadership roles in applications engineering, product... Read More →
avatar for Shanna Snow Brown

Shanna Snow Brown

Associate, Hartranft Lighting Studios
Shanna Brown is an Associate at Hartranft Lighting Studios with over a decade of experience in architectural lighting design. She holds a Master’s degree from Parsons School of Design and brings a human-centered approach that blends form and function, with a focus on the emotional... Read More →

Tuesday September 15, 2026 4:00pm - 5:00pm CDT
Varaluz/Ciana Showroom - TM 4507
 
ArchLIGHT Summit
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