CONDENSER LENS, LAMP AND CAMERA
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United States of America Patent
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Issued Date -
Dec 27, 2012
app pub date -
Aug 29, 2011
filing date -
Jun 24, 2011
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A condenser lens, lamp and camera applicable to an optical area are provided. The condenser lens is a physical glass lens and has an incident surface, an exit surface and a side surface arranged around a central axis of the condenser lens. The side surface is lattice-shaped. The condenser lens of the present invention adopts a glass material, which improves a light extraction efficiency of the lens and reduces a light energy loss. The lattice-shaped side surface of the lens reflects lights in different directions by multiple small-area lattice units instead of reflecting lights by a single curved surface. The reasonably-designed lattice structure enables each lattice unit reflecting lights in a predetermined direction, which may realize a uniform illumination at a small angle and is beneficial to spot-lighting. This condenser lens may be widely applied in all sorts of illuminating lamps or an illumination system of a camera.
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