HEAT CONVECTION COOLING SYSTEM FOR OPTICAL READOUT AND DISPLAY DEVICE

Apparatus for cooling the light source in an optical readout and display device such as a microfiche viewer. An inverted U-shaped channel is provided which has a level portion interposed between the light source and the lens of the device, and an upwardly inclined portion extending from the level po...

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Bibliographische Detailangaben
Hauptverfasser:	STUDLEY, DAVID K
Format:	Patent
Sprache:	eng
Schlagworte:	ACCESSORIES THEREFOR APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY PHOTOGRAPHY PHYSICS
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Beschreibung
Zusammenfassung:	Apparatus for cooling the light source in an optical readout and display device such as a microfiche viewer. An inverted U-shaped channel is provided which has a level portion interposed between the light source and the lens of the device, and an upwardly inclined portion extending from the level portion. The channel is constructed of heat conductive material so that excess radiant energy from the light source is absorbed by the level portion of the channel and conducted to the inclined portion. Ambient air is heated by the channel and rises along the inclined portion thereof. The movement of air through the channel cools the light source by means of heat convection, eliminating the need for a fan or other power driven cooling apparatus.