Light diffusion box

Details Light diffusion box Light diffusion box

1989-06-13

1991-06-11

Husar, Stephen F.

Illumination

Photographic lighting

Including specific light modifier

362305, 362320, 350314, G03B 1502

Patent

active

050237560

ABSTRACT:
An improved light diffusion box for photographic, industrial and consumer uses. The light diffusion box includes a hollow housing of fabric material provided with a front screen and having means for securing a ring to the rear end thereof, the ring being adapted to mount a light source within the housing. The housing has sides which are coupled together and each side has a silver laminate layer adjacent to a thin, white nylon layer. A deflection/transmission panel is between the light source and the front screen. A graduated or alternated deflection/transmission pattern is printed on at least one face of the panel and such pattern is equal and opposite to the naturally-occurring light fall-off from the light source. The center of the pattern forces the strong light nearest the source to be largely deflected into the sidewalls of the housing and only slightly transmitted. As the pattern radiates outwardly on the panel the pattern allows more and more light to be transmitted through the panel and less to be deflected.

REFERENCES:
patent: 2205860 (1940-06-01), Olds
patent: 2286219 (1942-06-01), Martinek
patent: 2356694 (1944-08-01), Potter et al.
patent: 3149968 (1964-09-01), Stephens
patent: 3781089 (1973-12-01), Fay et al.
patent: 3939340 (1976-02-01), Gozzano
patent: 4052607 (1977-10-01), Larson
patent: 4446506 (1984-05-01), Larson
patent: 4760498 (1988-07-01), Lang et al.
4-page Brochure, Plume Ltd., Silver Plume, Colorado, "The New Plume Wafer", Nov. 15, 1985.

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