Projector lamp reflector

Details Projector lamp reflector Projector lamp reflector

1975-12-15

1977-07-12

O'Connor, Edna M.

Buckles, buttons, clasps, etc.

240103R, F21V 702

Patent

active

040356310

ABSTRACT:
The concave reflecting surface of a projector reflector is shaped to provide a first set of reflecting areas which project a first set of light beams arranged to form a first tightly packed mosaic pattern at a plane, and a second set of reflecting areas which project a second set of light beams arranged to form a second tightly packed mosaic pattern superimposed on said first mosaic pattern.

REFERENCES:
patent: 1199071 (1916-09-01), Heckert
patent: 1258007 (1918-03-01), Hess
patent: 1260387 (1918-03-01), Johanson
patent: 1639363 (1927-08-01), Balsillie
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patent: 2088024 (1937-07-01), Baber
patent: 3153168 (1964-10-01), Saranga
patent: 3331960 (1967-07-01), Elmer
patent: 3423582 (1969-01-01), Elmer
patent: 3428800 (1969-02-01), Levin et al.
patent: 3449561 (1969-06-01), Basil et al.
patent: 3588493 (1971-06-01), Nordquist
patent: 3720460 (1973-03-01), Wilkinson
patent: 3826913 (1974-07-01), Downing et al.

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