Reflection type projector

Details Reflection type projector Reflection type projector

1999-05-18

2000-09-05

Adams, Russell

Optics: image projectors

Composite projected image

Multicolor picture

353 69, 353 70, 353101, 348744, 348759, 348766, 348771, G03B 2114

Patent

active

061132403

ABSTRACT:
A reflection type projector includes a light source, a reflection type light modulating element, a projection lens, a condenser lens, and first and second adjusting mechanisms. An illumination light emitted from the light source passes through the condenser lens and enters into the reflection type light modulating element. The reflected light from the element passes through the condenser lens and is projected on the screen to form an image through the projection lens. The first adjusting mechanism adjusts the position of the projection lens along a direction perpendicular to the optical axis of the projection lens to move the position of the projected image. The second adjusting mechanism adjusts the position of the condenser lens along a direction parallel to the adjusting direction of the projection lens so that the reflected light enters into the projection lens.

REFERENCES:
patent: 5283599 (1994-02-01), Tejima et al.
patent: 5550679 (1996-08-01), Sugawara
patent: 5645334 (1997-07-01), Tejima et al.

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