Reflective film

Details Reflective film Reflective film

1987-03-24

1989-01-17

Lazarus, Ira S.

Illumination

Light source and modifier

Including reflector

362327, 362339, 4289122, 350286, F21V 1304

Patent

active

047991372

ABSTRACT:
A light transmissive film having a smooth surface and a structured surface. The structured surface has a series of triangular prisms running parallel or concentric to one another. A reflector is placed adjacent to the smooth surface so that light entering the film at an angle which is close to parallel to the smooth surface will emerge from the film at a predetermined angle with respect to the incoming beam. A light fixture utilizing the film is also disclosed.

REFERENCES:
patent: 1610423 (1926-12-01), Cawley
patent: 2086388 (1937-07-01), Nechin
patent: 2096453 (1937-10-01), Exelmans
patent: 3049616 (1962-08-01), Davis
patent: 4652979 (1987-03-01), Arima
patent: 4654761 (1987-03-01), Walsh

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