Illumination – Light source substitution
Patent
1986-08-25
1987-11-10
Jones, Larry
Illumination
Light source substitution
362321, F21V 1904
Patent
active
047061715
ABSTRACT:
A containment shield for a replaceable Xenon lamp and reflector module provides a safe, simple means of replacing and handling an arc lamp (10) for a light valve projection system. Guides (93, 94) are provided which act as a means of positioning and allowing easy removal of a lamp module (97). These guides also provide the mounting structure for a spring (112) that locks the lamp module into the guides to prevent removal unless the containment shield or shutter (91) is on and the means for releasing the shutter once the lamp module is in place. A shutter release screw (110) is locked into its mounting bracket to prevent its total removal. This insures that the screw will be there to release a shutter and not be removed or lost. The lamp module itself is composed of a rectangular mount plate (99) which provides the support for the arc lamp (10), reflector (100) and other components. This mount plate has a base bracket (103) attached to the bottom of the plate which acts as a means of holding the bottom of the shutter in place on the lamp module, while also providing a bottom seal to the system. The mount plate also has two pins (104, 105) located on each side of the plate to provide positioning of the shutter while on the lamp module assembly. A hole (106) cooperates with a spring (108) to form a locking mechanism for holding the shutter in place.
REFERENCES:
patent: 3642361 (1972-02-01), Streu
patent: 4156891 (1979-05-01), Roche
patent: 4195331 (1980-03-01), Jones
Coughlin Jr. Vincent J.
General Electric Company
Jones Larry
Kamen Noah
Whitacre Eugene M.
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