Optics: image projectors – Polarizer or interference filter
Reexamination Certificate
2007-02-01
2009-08-18
Lee, Diane I (Department: 2851)
Optics: image projectors
Polarizer or interference filter
C353S037000, C353S081000, C353S099000, C349S030000, C359S490020, C359S634000, C348S338000, C348S339000
Reexamination Certificate
active
07575325
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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Moriya Satoru
Suzuki Tetsuji
Cruz Magda
Lee Diane I
Meyer Jerald L.
Richmond Derek
The Nath Law Group
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