Adjustable light projector

Details Adjustable light projector Adjustable light projector

1985-07-12

1987-09-08

Feinberg, Craig R.

Illumination

Photographic lighting

362268, 362289, 362372, 362373, 362293, 362294, F21V 1902, F21V 2900

Patent

active

046928448

ABSTRACT:
An electric lamp unit for projecting light to subjects which are being photographed features a housing having an elongated chamber with a lens at one end and a shielded vent at the other end. In the chamber is a carriage on which is mounted a socket for the light bulb and a reflector. The carriage travels in the chamber on parallel rails, one of which is adjustable by a knob outside the housing at the rear to change the location of the carriage. An upper half section of the housing is hinged as a cover section to the lower stationary section for ready access to the chamber. Abundant vent openings are provided, some of which are coincident with adjoining edges of the cover and the stationary sections.

REFERENCES:
patent: 2287328 (1942-06-01), Rose
patent: 2307301 (1943-01-01), Richardson
patent: 3120352 (1964-02-01), Akita et al.
patent: 3461282 (1969-08-01), Martinez
patent: 3642361 (1972-02-01), Streu
patent: 4183077 (1980-01-01), Arnold
patent: 4419716 (1983-12-01), Koo
patent: 4519020 (1985-05-01), Little
patent: 4602321 (1986-07-01), Bornhorst

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