Projector system with combinated light sources

Details Projector system with combinated light sources Projector system with combinated light sources

2011-07-05

2011-07-05

Epps, Georgia Y (Department: 2878)

Optics: image projectors

Prism in light path

Reexamination Certificate

active

07972016

ABSTRACT:
A projector system includes a light source module and an integrator including a light receiving surface for receiving light from the light source module. The light source module includes a number of light sources for emitting parallel light, multiple sets of light-adjusting prisms corresponding to the light sources and a focusing lens arranged near the integrator. Light emitted from each of the light sources is refracted by the corresponding set of light-adjusting prisms, and then focused by the focusing lens to the light receiving surface of the integrator, and forms into a converging light cone with the apex being at the light receiving surface of the integrator. An angle of the light cone is 1/N of a cone formed by the light without being refracted, where N is number of the light sources and is greater than 1.

REFERENCES:
patent: 5517000 (1996-05-01), Nishiwaki et al.
patent: 6075648 (2000-06-01), Yamamoto et al.
patent: 2005/0057729 (2005-03-01), Huang

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