发明名称 Light cutter of a lamp for projector
摘要 A light cutter device. The device uses a fan to produce airflows flowing through a cylinder-like or core-like lamp reflector so as to form a wake region downstream of the lamp reflector. A front light cutter is placed on the wake region, and an upper light cutter and a lower light cutter are respectively installed at both sides of the lamp reflector. One end of the light cutters is mounted at a lamp housing by bolts, and the other end maintains a distance from the lamp reflector and extends to the back end of the lamp along the contour of the lamp reflector. The light cutters are able to shelter the bright light beam, emitting from the lamp, towards the outlet of airflows to not leak out of the projector and lead airflows to cool the lamp reflector. As a result, there is no need to install a decline guide on the airflows for sheltering the light so that the block o the airflow outlet decreases.
申请公布号 US6874912(B2) 申请公布日期 2005.04.05
申请号 US20030630745 申请日期 2003.07.31
申请人 CORETRONIC CORPORATION 发明人 HSU NIEN-HUI;HSU SEN-MING
分类号 F21V15/06;F21V29/02;(IPC1-7):F21V29/00 主分类号 F21V15/06
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