Convergence system for a projection display system

Details Convergence system for a projection display system Convergence system for a projection display system

2006-01-10

2006-01-10

Nguyen, Judy (Department: 2851)

Optics: image projectors

Composite projected image

Multicolor picture

C353S081000, C349S062000, C349S007000

Reexamination Certificate

active

06984042

ABSTRACT:
A convergence system100comprises a dichroic prism102for splitting and/or recombining light beams, intermediate parts104a, 104b, 104cand a light modulator106a, 106b, 106cfor every color beam. The intermediate parts104a, 104b, 104care constructed such that the convergence system has an improved resistance for variations in environmental effects like temperature and humidity. The intermediate parts104a, 104b, 104care constructed such that the convergence system has a high stability, a large degree of monolithicy and a high movement isotropy. When used in a projection display system, the projection display system has a high degree of color uniformity.

REFERENCES:
patent: 6056407 (2000-05-01), Iinuma et al.
patent: 6819464 (2004-11-01), Fujimori et al.
patent: 6830338 (2004-12-01), Ogawa
patent: 6844993 (2005-01-01), Fujimori et al.
patent: 2004/0169784 (2004-09-01), Miyashita et al.

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