Nonimaging Optical Illumination System
Abstract
A nonimaging illumination or concentration optical device. An optical device is provided having a light source, a light reflecting surface with an opening and positioned partially around the light source which is opposite the opening of the light reflecting surface. The light reflecting surface is disposed to produce a substantially uniform intensity output with the reflecting surface defined in terms of a radius vector R.sub.i in conjunction with an angle .phi..sub.i between R.sub.i, a direction from the source and an angle .theta..sub.i between direct forward illumination and the light ray reflected once from the reflecting surface. R.sub.i varies as the exponential of tan (.phi..sub.i -.theta..sub.i)/2 integrated over .phi..sub.i.
- Inventors:
-
- Chicago, IL
- Issue Date:
- Research Org.:
- Univ. of Chicago, IL (United States)
- OSTI Identifier:
- 879181
- Patent Number(s):
- 5289356
- Application Number:
- 07/732982
- Assignee:
- NiOptics Corporation (Evanston, IL)
- Patent Classifications (CPCs):
-
F - MECHANICAL ENGINEERING F21 - LIGHTING F21V - FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF
F - MECHANICAL ENGINEERING F24 - HEATING F24S - SOLAR HEAT COLLECTORS
- DOE Contract Number:
- FG02-87ER13726
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Winston, Roland. Nonimaging Optical Illumination System. United States: N. p., 1994.
Web.
Winston, Roland. Nonimaging Optical Illumination System. United States.
Winston, Roland. Tue .
"Nonimaging Optical Illumination System". United States. https://www.osti.gov/servlets/purl/879181.
@article{osti_879181,
title = {Nonimaging Optical Illumination System},
author = {Winston, Roland},
abstractNote = {A nonimaging illumination or concentration optical device. An optical device is provided having a light source, a light reflecting surface with an opening and positioned partially around the light source which is opposite the opening of the light reflecting surface. The light reflecting surface is disposed to produce a substantially uniform intensity output with the reflecting surface defined in terms of a radius vector R.sub.i in conjunction with an angle .phi..sub.i between R.sub.i, a direction from the source and an angle .theta..sub.i between direct forward illumination and the light ray reflected once from the reflecting surface. R.sub.i varies as the exponential of tan (.phi..sub.i -.theta..sub.i)/2 integrated over .phi..sub.i.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Feb 22 00:00:00 EST 1994},
month = {Tue Feb 22 00:00:00 EST 1994}
}