发明名称 Electronic distance meter
摘要 An electronic distance meter includes a sighting telescope having an objective lens for sighting an object; a reflection member positioned behind the objective lens; an optical distance meter which includes a light-transmitting optical system for transmitting a measuring light via the reflection member and the objective lens, and a light-receiving optical system for receiving a portion of the measuring light which is reflected by the object, passed through the objective lens and not obstructed by the reflection member; a focus detecting device which detects a focus state from a correlation between a pair of images respectively formed by two light bundles which are respectively passed through two different pupil areas on the objective lens; and at least one optical element, positioned outside the two different pupil areas, to deflect the portion of the measuring light toward an optical axis of the light-receiving optical system.
申请公布号 US6501541(B2) 申请公布日期 2002.12.31
申请号 US20010862583 申请日期 2001.05.23
申请人 PENTAX CORPORATION 发明人 SHIRAI MASAMI
分类号 G01C3/06;G01C3/04;G01C15/00;G01S7/48;G01S7/481;G01S17/36;G02B7/28;G02B7/34;(IPC1-7):G01C3/08 主分类号 G01C3/06
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