Illumination optical system and projector using the same

Details Illumination optical system and projector using the same Illumination optical system and projector using the same

2006-10-10

2006-10-10

Perkey, W. B. (Department: 2851)

Optics: image projectors

Particular condenser

C353S020000, C353S038000, C353S098000, C353S100000, C349S009000, C349S060000, C349S095000, C349S096000, C359S490020, C359S506000, C362S019000, C348S750000, C348S759000, C348S771000

Reexamination Certificate

active

07118229

ABSTRACT:
The present invention provides a technique for readily changing the design of a projector. A projector comprises: an illumination optical system; a light modulation device; a projection optical system; and a base frame for mounting a plurality of optical components disposed on a light path from the optical illumination system to the projection optical system. The illumination optical system300comprises: a light source20;a lens array320;and a superimposing lens system370.The base frame includes a positioning section for positioning the superimposing lens system370.The superimposing lens system370includes at least two lenses371and372.The first lens371is provided at a position nearest to the light source and mainly determines an F-number of the illumination optical system. The second lens372is provided at a position furthest from the light source and mainly determines a magnification of the illumination optical system.

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Dismissal of Amendment.
Notification of Reason for Rejection.

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