Surface illuminating device and an image display apparatus provi

Details Surface illuminating device and an image display apparatus provi Surface illuminating device and an image display apparatus provi

1998-04-15

2000-10-31

Cariaso, Alan

Illumination

Photographic lighting

Including specific light modifier

362 18, 362 31, 362224, 362280, 362323, 362355, G03B 2716, F21V 1312

Patent

active

061391611

ABSTRACT:
A surface illuminating device is provided with a light source, a light introducing plate lying in a plane passing the light source, a first light diffusing plate arranged on a top surface of the light introducing plate, and a second light diffusing plate arranged on a bottom surface of the light introducing plate. The light introducing plate includes a first section arranged with the first light diffusing plate, and a second section arranged with the second light diffusing plate. The first and second sections each are formed with serrations in a surface opposite to a surface arranged with their respective light diffusing plate.

REFERENCES:
patent: 2347665 (1944-05-01), Christensen et al.
patent: 2646637 (1953-07-01), Nierenberg et al.
patent: 4985809 (1991-01-01), Matsui et al.
patent: 5057974 (1991-10-01), Mizobe
patent: 5211470 (1993-05-01), Frost et al.
patent: 5410454 (1995-04-01), Murase et al.
patent: 5742367 (1998-04-01), Kozaki
patent: 5801793 (1998-09-01), Faris et al.

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