Projection optical system

Details Projection optical system Projection optical system

1999-03-23

2000-11-07

Epps, Georgia

Optical: systems and elements

Single channel simultaneously to or from plural channels

By partial reflection at beam splitting or combining surface

359618, 359629, G02B 2714, G02B 2710

Patent

active

061444979

ABSTRACT:
Dichroic mirrors are disposed at the same inclination angle in a position such that a plane including an incidence optical path and a reflection optical path (transmission optical path of green light) of blue light reflected at a reflecting surface of one dichroic mirror is orthogonal to a plane including an incidence optical path and a reflection optical path of red light reflected at the other dichroic mirror. The other dichroic mirror is formed by cementing two glass substrates, and a red light reflecting layer is formed on the joint surface.

REFERENCES:
patent: 5562334 (1996-10-01), Wortel

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