Architectural Lighting Systems: Distributed Visualization Daniel C. Glaser Interdisciplinary Doctoral Candidate U.C. Berkeley Dissertation Committee John Canny, Ellen Do, Rogers Hall, Susan Ubbelohde BID Retreat: June 17 th 2002

O. Feng Various people and potential applications Focus is on daylight integration by the lighting designer* Motivation: improved visual environments energy Visualizing Architectural Lighting

architects/architectural students (direct beam, only) daylight consultant (referencing sky databases) Professionals have Different Skills/Training K. Carrier Y. Yong

Distributed Visualization Individuals are influenced by organizations, policy, training, design tools, etc. Visualization systems need to reconcile these “external” factors Engineering templates (1950)California Title-24 (2000) A. Iles

Pilot Study ~20s standard practice ~15s justification for not using daylight ~10s learning ~20s redesign (part 1) 65s Practicing lighting designer (X yrs) Reviewing a simplified visualization plot Office design context (Movie unlinked for privacy)

BEFORE Single lighting system (3 wall sconces) Balance light with room geometry Static visual field Three lighting systems (daylight + 2 electric) Electric light placement corresponds to daylight Occupant as part of solution AFTER Results

But who/when/how/why? year selector, K. Carrier SAMSON Data (30x as precise) New techniques will happen Innovation, Part II

Acknowledgements IESNA Golden Gate Chapter NOAA U.C. Energy Institute Lighting distributions, idealized and measured skies R. Warfield