Lightpipe providing wide angle output

Details Lightpipe providing wide angle output Lightpipe providing wide angle output

1994-03-23

1995-06-13

Bovernick, Rodney B.

Optical waveguides

Optical fiber waveguide with cladding

385115, 385125, G02B 610

Patent

active

054251249

ABSTRACT:
A lightpipe which outputs light in a wide angle output pattern. An embodiment of the inventive lightpipe has a longitudinal cross section which has at least one section with a varying width. In addition, a preferred embodiment of the inventive lightpipe has a section with increasing width of the cross section near an input end of the lightpipe and a section with decreasing width of the cross section near an output end of the lightpipe.

REFERENCES:
patent: 3699950 (1972-10-01), Humphrey, Jr. et al.
patent: 4422719 (1983-12-01), Orcutt
patent: 4466697 (1984-08-01), Daniel
patent: 5071222 (1991-12-01), Laakmann et al.
patent: 5267995 (1993-12-01), Doiron et al.

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