Beam splitting prism assembly with bias light source

Details Beam splitting prism assembly with bias light source Beam splitting prism assembly with bias light source

1979-01-08

1980-11-25

Martin, John C.

Facsimile and static presentation processing

Static presentation processing

Attribute control

H04N 909

Patent

active

042361770

ABSTRACT:
A television camera comprising an objective lens, a color resolution prism system and image pick-up devices arranged to respectively face the exit faces of said color resolution prism system. Said color resolution prism system comprises first, second, third and fourth prisms arranged in the above-mentioned order from said objective lens and along the optical axis thereof, wherein said first and second prisms are mutually separated by an air gap, said second and third prisms are mutually separated by an air gap, said second prism is provided with a first dichroic layer on a surface thereof facing said third prism, and said third and fourth prisms are mutually adhered through a second dichroic layer.

REFERENCES:
patent: 3932027 (1976-01-01), Cook et al.
patent: 4123777 (1978-10-01), Sekiguchi

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