Color separation/synthetic optical system including two dichroic

Details Color separation/synthetic optical system including two dichroic Color separation/synthetic optical system including two dichroic

1992-01-14

1993-04-06

Henry, Jon W.

Optical: systems and elements

Single channel simultaneously to or from plural channels

By partial reflection at beam splitting or combining surface

359637, 359583, G02B 2710, G02B 528

Patent

active

052008576

ABSTRACT:
A color separation/synthetic optical system has a plurality of dichroic mirrors for allowing an incident light to be transmitted therethrough and to be reflected thereon every different rays of color light. A first dichroic mirror and a second dichroic mirror adjacent to the first dichroic mirror are arranged in a manner that they are inclined by predetermined angles, respectively. The second dichroic mirror is rotationally inclined about a vertical axis to a horizontal axis of rotational inclination of the first dichroic mirror. Thus, both astigmatic differences produced in the two mirrors are canceled.

REFERENCES:
patent: 3794407 (1974-02-01), Nishimura

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