Illumination – Light source substitution
Patent
1993-03-17
1994-04-05
Husar, Stephen F.
Illumination
Light source substitution
362 20, F21V 1904
Patent
active
053010949
ABSTRACT:
A lamp changer assembly for an overhead projector includes a reflector bracket and a lamp support bracket mounting two lamps. The reflector mounting bracket includes a slot and the lamp support bracket has attached thereto a slide which rides in the slot. Contact between the end points of the slot and the slide determines the position of the lamps relative to the reflector bracket and the reflector mounted thereon.
REFERENCES:
patent: 4410929 (1983-10-01), Feinbloom et al.
patent: 4975810 (1990-12-01), Vanderbel
Anderson David W.
Griswold Gary L.
Husar Stephen F.
Kirn Walter N.
Minnesota Mining and Manufacturing Company
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