Filter attachment for parabolic reflector lamps

Details Filter attachment for parabolic reflector lamps Filter attachment for parabolic reflector lamps

1976-01-12

1977-02-01

Grimm, Siegfried H.

Electric lamp and discharge devices

With optical device or special ray transmissive envelope

Polarizer or special ray transmission

240 4657, 240 4659, 350318, H01K 126

Patent

active

040063771

ABSTRACT:
Filters, in the form of lens covers, are provided for PAR lamps and attached to the outside thereof by means of a ring of heat-shrinkable tubing which both fastens and seals the filter to the lamp.

REFERENCES:
patent: 2440103 (1948-04-01), Land
patent: 2830002 (1958-04-01), Mohs
patent: 3191025 (1965-06-01), Harker
patent: 3731080 (1973-05-01), Eloranta

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