Illumination – Light source and modifier – With sealing means or artificial atmosphere
Patent
1992-05-29
1994-03-15
Cole, Richard R.
Illumination
Light source and modifier
With sealing means or artificial atmosphere
362277, 362321, 362362, F21V 1312, F21V 3102
Patent
active
052950565
ABSTRACT:
An exterior framing projector is adapted for use in all weather conditions and includes a hermetically sealed housing with the clear cover over one end through which the light image is projected. The components of the projector are mounted and sealed within the housing and may be positioned on a base carried in the housing with the various components mounted in a manner to be adjusted relative to one another to control focus and image size. A lamp positioning system is provided for assuring accurate alignment of the lamp with the ellipsoidal reflector of the projector.
REFERENCES:
patent: 3069536 (1962-12-01), Dion et al.
patent: 4419716 (1983-12-01), Koo
patent: 4462067 (1984-07-01), Altman
patent: 4546420 (1985-10-01), Wheeler et al.
patent: 4701833 (1987-10-01), Bornhorst
patent: 4729078 (1988-03-01), Skevin
patent: 4899267 (1990-02-01), Mardon
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