High power arc lamp reflector with shroud and plurality of cooli

Illumination – Light source and modifier – Ionized gas or vapor light source

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Details

362345, 362294, 362373, F21K 2700

Patent

active

059475900

ABSTRACT:
A high power image projector includes a plurality of rows of spaced-apart cooling fins on the exterior surface of its light source reflector. The cooling fins are offset relative to adjacent cooling fins, thus disrupting the thermodynamic boundary layer of cooling air flowing over the reflector surface with a shroud. Thus the high-power projector can be adequately cooled with cooling air or other gases, without the need for a liquid cooling system.

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"Offset Rectangular Plate-Fin Surfaces--Heat Transfer And Flow Friction Characteristics", A. L. London and R. K. Shah; Paper No. 68--GT8; 11 pages .

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