Diffusion system

Details Diffusion system Diffusion system

1992-01-06

1993-04-20

Dority, Carroll B.

Illumination

Self powered lamp

Cylindrical flashlight casing

362206, 362346, F21L 700

Patent

active

052036251

ABSTRACT:
A mixture of approximately 95% barium sulfate and 5% polyvinyl alcohol in powdered form is mixed into a solvent, heated and sprayed onto a diffusion surface to be used in conjunction with high-intensity lamps ranging from 200 watts to 18 kilowatts to convert the irregular lighting from these sources to a smooth, broad, even diffused source suitable for use in motion picture and television settings and other situations in which a very bright, but soft, evenly dispersed light is desirable.

REFERENCES:
patent: 1820543 (1931-08-01), Reed
patent: 4276633 (1981-06-01), Takami et al.
patent: 4429004 (1984-01-01), Breitenfellner
patent: 4521834 (1985-06-01), Orr
patent: 4735495 (1988-04-01), Henkes
patent: 5023758 (1991-06-01), Allen et al.
patent: 5101325 (1992-03-01), Davenport et al.

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