Projector lamp reflector

Details Projector lamp reflector Projector lamp reflector

1975-10-30

1977-05-03

Miller, Jr., George H.

Buckles, buttons, clasps, etc.

240103R, F21V 709, F21V 700

Patent

active

040216594

ABSTRACT:
The concave reflecting surface of a projector lamp reflector is shaped in the form of a plurality of radial bands and a plurality of concentric circular bands to provide a multiple faceted surface for spreading the image formed by the reflector into a larger and smoother pattern and reducing the amount of imaging of a lamp filament and support post in the projected light pattern. Longer life and improved reproducibility of the molding tool are achieved.

REFERENCES:
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patent: 1394319 (1921-10-01), McNeal
patent: 1639363 (1927-08-01), Balsillie
patent: 2266190 (1941-12-01), Griese
patent: 2686255 (1954-08-01), Pascucci
patent: 2913570 (1959-11-01), Gough et al.
patent: 3314331 (1967-04-01), Wiley
patent: 3428800 (1969-02-01), Levin et al.
patent: 3511983 (1970-05-01), Dorman
patent: 3662165 (1972-05-01), Osteen et al.
patent: 3662165 (1970-03-01), Osteen
patent: 3825742 (1974-07-01), Levin
patent: 3826913 (1974-07-01), Downing

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