Beam splitter

Details Beam splitter Beam splitter

1977-03-01

1978-11-14

Cook, Daryl W.

Facsimile and static presentation processing

Facsimile

Recording apparatus

350286, 353 82, 358302, H04N 586, G03B 2778, G02B 504, G03B 2114

Patent

active

041258649

ABSTRACT:
A beam splitter is disclosed in which a light beam entering a block of light-transmitting material is internally reflected a plurality of times between a pair of parallel sides, one side being coated to enhance such internal reflection and the other side having in the direction of its length a succession of areas which are differently coated to control the amount of the beam which is reflected internallly and the amount of the beam which emerges; a plurality of parallel emergent beams of substantially equal intensity can be obtained in this way. The application of such a beam splitter to an image-reproducing system is described, the beams contributing to the formation of half-tone dots in the image.

REFERENCES:
patent: 4012584 (1977-03-01), Gascoigne
patent: 4015081 (1977-03-01), Starkweather
patent: 4025189 (1977-05-01), Pugsley

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