Method for manufacturing color combining optical system,...

Details Method for manufacturing color combining optical system,... Method for manufacturing color combining optical system,...

2005-08-02

2005-08-02

Mathews, Alan A. (Department: 2851)

Optics: image projectors

Composite projected image

Multicolor picture

C353S034000, C353S081000, C353S082000, C359S349000, C359S634000, C348S338000

Reexamination Certificate

active

06923545

ABSTRACT:
A measurement light (X) is introduced on either one of reflection surfaces (501, 502, 511, 512) to detect a returned light (Y) reflected by the reflection surfaces (501, 502, 511, 512), reflected by a reflecting device and again reflected by the reflection surfaces (501, 502, 511, 512) by an autocollimator (620) to conduct image-processing and calculation by a processor (628), where a position adjuster (690) adjusts an attitude of a cross dichroic prism (45) relative to a fixing plate (447) to eliminate deviation between a position of the measurement light (X) and the returned light (Y) based on the result of the processing, thereby producing a highly accurate prism unit (50).

REFERENCES:
patent: A 2000-221588 (2000-08-01), None

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