专利名称：DEVICE FOR DISTANCE MEASUREMENT发明人：FRICK, RAINER申请号：EP02767111.4申请日：20020809公开号：EP1421410B1公开日：20050112
摘要：The invention relates to a device with a detector element for receiving a lightbeam reflecting on an object, wherein means for deflecting the light beam are providedin the detector element. The invention also relates to a method for distance
measurement using said receiver device. A device for determining the distance between avehicle and an obstacle or a vehicle driving ahead is already known as per DE 19713826A1, wherein a pulsed laser beam serving as send signal scans line-by-line a two-dimensional area using a self-rotating polygonal mirror, wherein said polygonal mirrorhas a plurality of mirror surfaces that are bent at different angles. The pulse beamreflecting on the object is focused on a detector element by optical lenses. Said deviceknown in prior art requires a polygonal mirror that is complicated to produce and acomplicated evaluation electronics due to the fact that, inter alia, the scanning impulsesfor the control of the laser diode have to be synchronized with the angular position ofthe polygonal mirror. The invention provides for a self-rotating polygonal mirror with aplurality of mirror surfaces that are bent at a given angle against the rotational axis ofsaid polygonal mirror as receiver device so that the reflecting light beam is deflected insaid mirror surfaces by means of an optics system and focused on the detector element.
申请人：CONTI TEMIC MICROELECTRONIC GMBH,CONTI TEMIC
MICROELECTRONIC,CONTI TEMIC MICROELECTRONIC GMBH
地址：DE
国籍：DE
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