Color separation element and image display device using same

Details Color separation element and image display device using same Color separation element and image display device using same

1998-05-19

2000-11-21

Henry, Jon

Optical: systems and elements

Diffraction

From grating

359571, 349 5, 349 57, 349 65, 362 31, G02B 2744, G02B 518, G02F 11335, F21V 704

Patent

active

061511668

ABSTRACT:
A color image display device has a light source which emits an approximately parallel beam of light, a color separation element for separating this parallel beam into beams of light of different colors, a liquid crystal display panel having picture elements and a lens array for focusing the separated beams at corresponding ones of these picture elements. The color separation element is formed with a prism array having two diffraction gratings on both sides of it such that a beam of white light passing through it will be separated into beams of different colors and the angles between the optical axes of these beams of different colors will be greater as they leave the separation element than if this beam of white light passed through only one of these diffraction gratings. Either one or both of these diffraction gratings may be integrally formed respectively on one or both of the surfaces of the prism array.

REFERENCES:
patent: 5528720 (1996-06-01), Winston et al.
patent: 5831765 (1998-11-01), Nakayama et al.

Affiliated with

Also associated with

Rating

Color separation element and image display device using same does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Color separation element and image display device using same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Color separation element and image display device using same will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1263619