Beam splitter for color imaging apparatus

Details Beam splitter for color imaging apparatus Beam splitter for color imaging apparatus

1989-10-16

1991-03-26

Arnold, Bruce Y.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

350172, 350173, 358 50, 358 55, G02B 2714, G02B 528

Patent

active

050023659

ABSTRACT:
A beam splitter for color imaging apparatus is disclosed. The beam splitter comprises two prism elements which are joined together with a dichroic interference filter interposed between the two elements. An input beam to the beam splitter is divided into a first output beam which is reflected from the filter and a second output beam which is transmitted through the filter. In order to provide a beam splitter of a generally triangular cross section in which one of the output beams has the desired spectral content for a luminance channel in the imaging apparatus and the other output beam has the desired spectral content for a chrominance channel, the interference filter is formed of alternate layers of SiO.sub.2 and TiO.sub.2 and is disposed such that an input light beam to the beam splitter has a relatively small angle of incidence on the filter.

REFERENCES:
patent: 4072405 (1978-02-01), Ozeki
patent: 4205337 (1980-05-01), Millward
patent: 4310847 (1982-01-01), Frohbach et al.
patent: 4384769 (1983-05-01), Brei et al.
patent: 4472735 (1984-09-01), Shinozaki et al.
patent: 4555163 (1985-11-01), Wagner
patent: 4641920 (1987-02-01), Matsuoka et al.
patent: 4784469 (1988-11-01), Tsukada et al.
patent: 4823187 (1989-04-01), Toyama et al.
patent: 4873569 (1989-10-01), Hirosawa

Affiliated with

Also associated with

Rating

Beam splitter for color imaging apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Beam splitter for color imaging apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Beam splitter for color imaging apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-613206