Liquid crystal light valve including between light and light val

Details Liquid crystal light valve including between light and light val Liquid crystal light valve including between light and light val

1994-01-24

1995-07-04

Gross, Anita Pellman

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

359 41, 359 67, 359 70, G02F 11335

Patent

active

054305624

ABSTRACT:
A liquid-crystal light valve unit and a projection display system using same are provided. The liquid-crystal light valve includes a light valve having openings defining pixels in a matrix arrangement, first light-reflecting layer for reflecting light projected from a light source entering out of the openings of the light valve, a second light-reflecting layer, including openings in a matrix arrangement, located between the light source and the first light-reflecting layer, for directing the light reflected from the first light-reflecting layer toward the light valve while allowing the light from the light source to be propagated through the openings to the light valve, and a lens array including a plurality of positive lens elements in a matrix arrangement for directing the light from the light source to the second light-reflecting layer, a focal point of each of the positive lens elements being defined on a given area in the vicinity of each of the openings of the second light-reflecting layer. With this arrangement, an effective aperture ratio is increased for projection of bright images.

Affiliated with

Also associated with

Rating

Liquid crystal light valve including between light and light val does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Liquid crystal light valve including between light and light val, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Liquid crystal light valve including between light and light val will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-764614