Trichromatic beam splitter

Details Trichromatic beam splitter Trichromatic beam splitter

1979-05-30

1981-11-24

Henry, Jon W.

Facsimile and static presentation processing

Static presentation processing

Attribute control

H04N 909

Patent

active

043027695

ABSTRACT:
An optics arrangement utilizing a trifurcating beam splitter is characterized by a first half-silvered element disposed at a 45.degree. angle with respect to the axis of an incident light beam. Second and third half-silvered elements are each disposed perpendicular to opposed surfaces of the first element and cooperate such that the light energy incident thereon is trifurcated into three ray paths each mutually perpendicular to the other, one of the ray paths having an axis coincident with the axis of the incident light beam. The invention is particularly useful in connection with a color video transmitting arrangement for a color sorting apparatus whereby incident light energy focused by a lens is trifurcated into mutually orthogonal ray paths having a visual image plane therewithin, the focal length between each visual image plane and the lens being substantially equal.

REFERENCES:
patent: 2642487 (1953-06-01), Schroeder
patent: 2889735 (1959-06-01), Wieberdink
patent: 3303278 (1967-02-01), Beno et al.

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