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CASSEGRAIN OPTICAL CONFIGURATION TO EXPAND HIGH INTENSITY LED FLASHLIGHT TO LARGER DIAMETER LOWER INTENSITY BEAM
CASSEGRAIN OPTICAL CONFIGURATION TO EXPAND HIGH INTENSITY LED FLASHLIGHT TO LARGER DIAMETER LOWER INTENSITY BEAM
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机译:CASSEGRAIN光学配置,可将高强度LED闪光灯扩展为更大直径的较低强度光束
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摘要
A flashlight in accordance with an embodiment of the present application includes an LED light source, a lens positioned opposite the LED light source, a convex mirror positioned substantially in a center of the inner surface of the lens, wherein light from the LED light source is reflected off the convex mirror back toward the LED light source and a concave mirror positioned opposite the convex mirror to reflect the light from the convex mirror as a wide diameter beam of light out of the flashlight through the lens. The convex mirror maybe replaced by a substantially flat, mirrored section of the lens if desired.
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