Color separation prism

Details Color separation prism Color separation prism

1995-08-23

1998-07-07

Faile, Andrew

Television

Camera, system and detail

Optics

359634, H04N 907

Patent

active

057776733

ABSTRACT:
A color separation prism having four blocks which can be directly placed at a position, where a color separation prism is to be provided, within a currently-used camera by making the F-number of the color separation prism substantially equivalent to that of an image pick-up lens, and which can implement a dual green system while obtaining the same brightness for the overall optical system as it is obtained from a color separation prism having three blocks. The color separation prism is made up of two prism blocks for separating an incident ray into a green color, one prism block for separating the incident ray into a red color, one prism block for separating the incident ray into a blue color, and an F-number which is substantially the same as an F-number of an image pick-up lens used together with the color separation prism.

REFERENCES:
patent: 4507679 (1985-03-01), Bendell
patent: 4857997 (1989-08-01), Fukami et al.
patent: 5436661 (1995-07-01), Yamamoto et al.

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