Multiple lightpipe device

Details Multiple lightpipe device Multiple lightpipe device

1995-03-08

1996-11-05

Bovernick, Rodney B.

Optical waveguides

With optical coupler

Plural

385123, 385115, 385125, G02B 628

Patent

active

055726135

ABSTRACT:
A light transmission device includes a multiplicity of lightpipes of differing lengths wherein light output from each of the lightpipes has substantially a same intensity when light applied to an input end of each of the lightpipes has substantially another same intensity. In accordance with a preferred embodiment of the present invention, an area of a surface of the input end of each of the lightpipes is textured and the size of the area which is textured is varies from lightpipe to lightpipe. A method in accordance with the invention transmits light through lightpipes of different lengths. The light transmittivity of each of the lightpipes is regulated so that the light output from each of the lightpipes has substantially the same intensity.

REFERENCES:
patent: 3753607 (1973-08-01), Kitano et al.

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