Laser lighting device

A laser lighting device, including a laser light source and a light pipe, is disclosed. The laser light source can produce a laser beam with a diffusion angle not larger than 30 degrees. The light pipe is disposed on a light path of the laser beam, and has a light entering surface, a light existing...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	LIAO, CHING-HUAN, LIN, MINING, CHIANG, CHUNG-I
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF HEATING LIGHT SOURCES NOT OTHERWISE PROVIDED FOR LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATINGELEMENTS LIGHTING MECHANICAL ENGINEERING NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR WEAPONS
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Beschreibung
Zusammenfassung:	A laser lighting device, including a laser light source and a light pipe, is disclosed. The laser light source can produce a laser beam with a diffusion angle not larger than 30 degrees. The light pipe is disposed on a light path of the laser beam, and has a light entering surface, a light existing surface and several cut planes. The light entering surface is opposite to the laser light source, and the cut planes locates between the light entering and light existing surfaces. Each of the cut planes is normal to a longitudinal direction of the light pipe, and has an area smaller than that of the light entering surface but larger than that of the light existing surface. The areas of the cut planes are sequentially increased along the longitudinal direction. The laser beam will be effectively collimated by the light pipe after passing through the light pipe.