High power consumption light source with concave reflecting...

Details High power consumption light source with concave reflecting... High power consumption light source with concave reflecting...

H - Electricity

05

B

240/130

H05B 31/24 (2006.01) F21V 29/02 (2006.01) G03B 27/16 (2006.01)

Patent

CA 1050948

ABSTRACT OF THE DISCLOSURE A light source device has an elongated box-shaped housing, cooling means provided on the back wall of the hous- ing, a concave mirror having a slit at its bottom, and a tubu- lar elongated light source arranged within and along the long- itudinal direction of the housing. The light source has an electrical input power more than 90 watts per 1 cm of arc, and the distance between the slit and a bulb wall portion of the light source on the downstream side of the cooling flow is less than about one-third of the outer diameter of the light source.

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