Light diffusion device

Details Light diffusion device Light diffusion device

2006-03-22

2008-12-30

O'Shea, Sandra L. (Department: 2875)

Illumination

Light source and modifier

Including translucent or transparent modifier

C362S003000, C362S016000, C362S017000, C362S278000, C362S297000, C362S298000, C362S300000

Reexamination Certificate

active

07470044

ABSTRACT:
A light diffusion device permits a single light source to serve as both direct lighting and fill lighting for a photographic, theatrical or cinematographic subject. The light diffusion device partially reflects light emitted from a light source away from the subject, using a translucent panel. Additional translucent panels permit the reflected light to escape from the light diffusion device into the surrounding environment. The escaped light reflects from the surrounding environment, thereby creating fill light around the subject, thus reducing or eliminating undesirable shadowing.

REFERENCES:
patent: 4052607 (1977-10-01), Larson
patent: 4446506 (1984-05-01), Larson
patent: 4594645 (1986-06-01), Terashita
patent: 5023756 (1991-06-01), Regester
patent: 6010234 (2000-01-01), Rahn
patent: 6076935 (2000-06-01), Kester
patent: 6709121 (2004-03-01), Lowe et al.

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