Projection display device

Details Projection display device Projection display device

2007-02-20

2007-02-20

Perkey, W. B. (Department: 2851)

Optics: image projectors

Prism in light path

C353S033000, C353S037000, C353S099000, C353S102000, C359S710000, C359S833000, C348S771000

Reexamination Certificate

active

10916173

ABSTRACT:
In a projection display device that is provided with a relay lens for converting flux that is emitted from a light source to a parallel flux for illuminating an image display element (DMD), and a total internal reflection prism for both directing flux that is emitted from the relay lens to the DMD and directing flux that is reflected by the DMD toward a projection lens, the relay lens is unified with the prism as a lens-integral prism by bonding the relay lens to the total internal reflection surface of the prism.

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