Gate for a lamp

Details Gate for a lamp Gate for a lamp

1994-01-03

1995-05-23

Lazarus, Ira S.

Illumination

Photographic lighting

Including specific light modifier

362283, 362322, G03B 1502

Patent

active

054186943

ABSTRACT:
A gate for a lamp which is particularly suited for illuminating rectangular objects comprises a holding element defining a light-passage opening which can be mounted on the lamp. Four gate wings are mounted on the holding element about the light-passage opening for defining a gate opening having substantially the approximate shape of an even-leg, or isosceles, trapezoid.

REFERENCES:
patent: 452638 (1891-05-01), Gartner et al.
patent: 1339304 (1920-05-01), Thompson
patent: 1495417 (1924-05-01), Ische et al.
patent: 1744369 (1930-01-01), Dietz et al.
patent: 2489172 (1949-11-01), Brandt
patent: 4777566 (1988-10-01), Lowell et al.
"dedolight" prospectus of the Dedo Weigert Film GmbH published in Jul. of 1989.

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