Light coupling device and image projection apparatus using...

Details Light coupling device and image projection apparatus using... Light coupling device and image projection apparatus using...

2006-03-21

2006-03-21

Perkey, W. B. (Department: 2851)

Optics: image projectors

Composite projected image

Multicolor picture

C353S082000, C353S094000

Reexamination Certificate

active

07014318

ABSTRACT:
A light coupling device and an image projection apparatus using the same, wherein photoconductive media of the light coupling device include optical fibers that transmit light. Each light coupling device has at least two input terminals, at least two output terminals, and a connector connecting the input and output terminals, wherein the connector forms at least one light path. The light coupling device receives and divides respective R, G, and B monochromatic light beams. By connecting a light source with multiple optical instruments via the light coupling devices, images can be projected on multiple screens. Further, by using optical fibers to transmit light beams, the size of image instruments is minimized and light loss is reduced.

REFERENCES:
patent: 3323886 (1967-06-01), Hays
patent: 4810052 (1989-03-01), Fling
patent: 5661837 (1997-08-01), Yamamoto et al.
patent: 5765934 (1998-06-01), Okamori et al.
patent: 5931983 (1999-08-01), Bloom
patent: 6513937 (2003-02-01), Dehmlow

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