Reflection type liquid crystal projector

Details Reflection type liquid crystal projector Reflection type liquid crystal projector

2005-12-27

2005-12-27

Kim, Robert H. (Department: 2871)

Liquid crystal cells, elements and systems

Liquid crystal system

Projector including liquid crystal cell

C353S031000

Reexamination Certificate

active

06980260

ABSTRACT:
While illuminating light is separated into a first wavelength component illuminating light and second and third wavelength component illuminating lights by a dichroic mirror, the first illuminating light is reflected off a first liquid crystal display element to form a first wavelength component image light which is then reflected off or passed through the polarizing surface of a first polarizing beam splitter, whereas one of the second and third wavelength component illuminating lights has its polarizing surface 90°-converted by a ½ phase difference plate, the other one is passed through the plate without having its polarizing surface converted, the second and third wavelength components are separated from each other by a second polarizing beam splitter and respectively reflected off second and third liquid crystal display elements to obtain second.

REFERENCES:
patent: 6176586 (2001-01-01), Hirose et al.
patent: 2001-154268 (2001-06-01), None
patent: 2001-154294 (2001-06-01), None

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