Color filter and color display apparatus

Details Color filter and color display apparatus Color filter and color display apparatus

1996-08-21

1999-04-13

Spyrou, Cassandra

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

359 22, 359 24, 349 5, 349 62, G02B 532

Patent

active

058943595

ABSTRACT:
A color filter includes a plurality of color pixels, and a first hologram diffracting an incident light beam into a first diffraction-resultant light beam. The color filter also includes a second hologram diffracting the first diffraction-resultant light beam into a second diffraction-resultant light beam having a plurality of light beams with different wavelengths respectively. The second hologram directs the different wavelength light beams toward the color pixels respectively.

REFERENCES:
patent: 4807978 (1989-02-01), Grinberg et al.
patent: 5506701 (1996-04-01), Ichikawa
patent: 5548349 (1996-08-01), Mizuguchi et al.
patent: 5633737 (1997-05-01), Tanaka et al.

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