Projector

Details Projector Projector

2011-07-19

2011-07-19

Dowling, William C (Department: 2878)

Optics: image projectors

Plural

C349S005000

Reexamination Certificate

active

07980706

ABSTRACT:
A projector comprising a first light source, a second light source, a light combining element, a diffuser and an actuator is provided. The first light source provides a first light beam with high coherence. The second light source provides a second light beam with high coherence. The light combining element comprises a first surface, wherein the first and second light beams enter the light combining element, and are combined into a mixed light beam therein. The diffuser is disposed on the first surface of the light combining element, wherein the first and second light beams enter the diffuser. The actuator is connected to the light combining element, wherein the actuator actuates the light combining element to vary locations where the first and second light beams enter the diffuser.

REFERENCES:
patent: 5884991 (1999-03-01), Levis et al.
patent: 7502160 (2009-03-01), Aksyuk et al.
patent: 2003/0214633 (2003-11-01), Roddy et al.
patent: 2005/0134813 (2005-06-01), Yoshikawa et al.
patent: 2007/0023527 (2007-02-01), Harley et al.
patent: 2008/0198334 (2008-08-01), Kasazumi et al.

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