Projecting apparatus

Details Projecting apparatus Projecting apparatus

1997-11-05

1999-12-07

Epps, Georgia

Optical: systems and elements

Lens

With light limiting or controlling means

349 5, 349 6, 349 8, 353 31, 353 34, 353 97, G02F 11335, G03B 2100

Patent

active

059993359

ABSTRACT:
This invention is to provide a projecting apparatus which focuses a plurality of color light components through a lens, illuminates reflection optical modulation elements arranged in units of color light components through a first deflection unit provided near a position where the color light components are focused, guides a light beam from at least one optical modulation element to a projection optical system through a second deflection unit, and superposes and projects pieces of image information based on the optical modulation elements on a predetermined surface through the projection optical system, wherein the second deflection unit is arranged near the stop of the projection optical system to divide the aperture of the stop into a plurality of areas, the first deflection unit is arranged near the stop of the projection optical system, and the optical modulation elements are illuminated with light beams tilted in a direction of division of the stop aperture and in a direction perpendicular to the direction of division.

REFERENCES:
patent: 5623349 (1997-04-01), Clarke
patent: 5651598 (1997-07-01), Yoshida et al.

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