Color projection type display apparatus reusing incident light

Details Color projection type display apparatus reusing incident light Color projection type display apparatus reusing incident light

2006-02-28

2006-02-28

Boutsikaris, Leonidas (Department: 2872)

Optical: systems and elements

Absorption filter

Filters in optical parallel

C359S892000, C348S743000, C356S418000, C353S084000, C362S293000

Reexamination Certificate

active

07006310

ABSTRACT:
A color projection type display apparatus having a light source, a color wheel driven to rotate and having a plurality of types of color filters, different in characteristics from one another, disposed on the same surface thereof to transmit a particular component of light from the light source and to reflect the remaining components, a reflector for reflecting a component of light impinging on the color wheel and reflected by one type of the color filters to again direct the component back to another type of color filters, an image display device having a plurality of areas each irradiated with particular component of light transmitted by the color filters, respectively, to display an image, and a projection lens for projecting the image displayed by the image display device onto a screen.

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