Projection-type display devices with reduced weight and size

Details Projection-type display devices with reduced weight and size Projection-type display devices with reduced weight and size

2011-03-29

2011-03-29

Dowling, William C (Department: 2878)

Optics: image projectors

Composite projected image

Multicolor picture

C353S094000

Reissue Patent

active

RE042251

ABSTRACT:
Described herein are display devices that provide projection-type video output and use diode lasers to generate light. For example, one set of diode lasers may produce red light, while a second set produces blue light. Optics are employed to expand laser light from its small generated or transmitted flux area to a size suitable for transmission onto the optical modulation device. Another aspect of the invention relates to a redundant laser set to generate light. A redundant laser set includes more lasers than that needed to produce the desired amount of light.

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