Planar light device

Details Planar light device Planar light device

2006-08-22

2006-08-22

Pak, Sung (Department: 2874)

Optical waveguides

Noncyclindrical or nonplanar shaped waveguide

C385S037000

Reexamination Certificate

active

07095942

ABSTRACT:
A planar light device (30) for emitting light beams, including a light guide plate (31) having a plurality of diffraction grating units (33). The light guide plate includes a light-emitting surface (313), an opposite bottom surface, and a light incident surface (311) disposed therebetween. A light source (32) is disposed adjacent to the light incident surface. The diffraction grating units cover the bottom surface of the light guide plate. Each diffraction grating unit is divided into a first part (A) and a second part (B), the first and second parts having different alignment directions from each other.

REFERENCES:
patent: 5363294 (1994-11-01), Yamamoto et al.
patent: 5703667 (1997-12-01), Ochiai
patent: 6671452 (2003-12-01), Winston et al.
patent: 2004/0022050 (2004-02-01), Yamashita et al.
patent: 2004/0109663 (2004-06-01), Olczak
patent: 2005/0041178 (2005-02-01), Taniguchi et al.
patent: 2005/0141844 (2005-06-01), Olczak

Affiliated with

Also associated with

Rating

Planar light device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Planar light device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Planar light device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3688370