Image displaying apparatus and color separating-combining...

Details Image displaying apparatus and color separating-combining... Image displaying apparatus and color separating-combining...

2007-03-13

2007-03-13

Perkey, W. B. (Department: 2851)

Optics: image projectors

Composite projected image

Multicolor picture

C353S020000, C353S081000, C348S757000

Reexamination Certificate

active

10797483

ABSTRACT:
An image displaying apparatus is capable of maintaining the contrast ratios of displayed images even if the f-value of an optical system of the apparatus is lowered to provide bright images, efficiently utilizing a beam from a light source, minimizing the size and weight of the optical system, and being easy to manufacture. The image displaying apparatus includes first to third reflective polarizing plates (120, 121, 122) provided for first to third reflective spatial light modulators (130, 131, 132), respectively. The reflective polarizing plates polarize and separate beams to be injected into the reflective spatial light modulators. In the image displaying apparatus, a color separating optical system has a larger effective diameter than a color composition prism (140).

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patent: 2002-372749 (2002-12-01), None

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