Pupillary efficient lighting system
Abstract
A lighting system having at least two independent lighting subsystems each with a different ratio of scotopic illumination to photopic illumination. The radiant energy in the visible region of the spectrum of the lighting subsystems can be adjusted relative to each other so that the total scotopic illumination of the combined system and the total photopic illumination of the combined system can be varied independently. The dilation or contraction of the pupil of an eye is controlled by the level of scotopic illumination and because the scotopic and photopic illumination can be separately controlled, the system allows the pupil size to be varied independently of the level of photopic illumination. Hence, the vision process can be improved for a given level of photopic illumination.
- Inventors:
-
- San Francisco, CA
- Mill Valley, CA
- Issue Date:
- Research Org.:
- Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
- OSTI Identifier:
- 867818
- Patent Number(s):
- 5015924
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Classifications (CPCs):
-
H - ELECTRICITY H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR H05B - ELECTRIC HEATING
- DOE Contract Number:
- AC03-76SF00098
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- pupillary; efficient; lighting; independent; subsystems; ratio; scotopic; illumination; photopic; radiant; energy; visible; region; spectrum; adjusted; relative; total; combined; varied; independently; dilation; contraction; pupil; eye; controlled; level; separately; allows; size; hence; vision; process; improved; radiant energy; separately controlled; adjusted relative; visible region; /315/
Citation Formats
Berman, Samuel M, and Jewett, Don L. Pupillary efficient lighting system. United States: N. p., 1991.
Web.
Berman, Samuel M, & Jewett, Don L. Pupillary efficient lighting system. United States.
Berman, Samuel M, and Jewett, Don L. Tue .
"Pupillary efficient lighting system". United States. https://www.osti.gov/servlets/purl/867818.
@article{osti_867818,
title = {Pupillary efficient lighting system},
author = {Berman, Samuel M and Jewett, Don L},
abstractNote = {A lighting system having at least two independent lighting subsystems each with a different ratio of scotopic illumination to photopic illumination. The radiant energy in the visible region of the spectrum of the lighting subsystems can be adjusted relative to each other so that the total scotopic illumination of the combined system and the total photopic illumination of the combined system can be varied independently. The dilation or contraction of the pupil of an eye is controlled by the level of scotopic illumination and because the scotopic and photopic illumination can be separately controlled, the system allows the pupil size to be varied independently of the level of photopic illumination. Hence, the vision process can be improved for a given level of photopic illumination.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1991},
month = {1}
}