Nonimaging optical illumination system

Patent · Tue Oct 06 00:00:00 EDT 1998

OSTI ID:675872

Winston, R; Ries, H

A nonimaging illumination optical device for producing a selected far field illuminance over an angular range. The optical device includes a light source a light reflecting surface, and a family of light edge rays defined along a reference line with the reflecting surface defined in terms of the reference lines a parametric function R(t) where t is a scalar parameter position and R(t)=k(t)+Du(t) where k(t) is a parameterization of the reference line, and D is a distance from a point on the reference line to the reflection surface along the desired edge ray through the point. 35 figs.

• Research Organization: Univ. of Chicago, IL (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: FG02-87ER13726
• Assignee: Minnesota Mining and Manufacturing Co., St. Paul, MN (United States); ARCH Development Corp., Chicago, IL (United States)
• Patent Number(s): US 5,816,693/A/
• Application Number: PAN: 8-745,239
• OSTI ID: 675872
• Resource Relation: Other Information: PBD: 6 Oct 1998
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
LIGHTING SYSTEMS
OPTICAL SYSTEMS
LIGHT SOURCES
REFLECTION