发明名称 CAMERA RANGE INDICATOR
摘要 A distance indication arrangement for a photographic camera includes a plate having a plurality of numerals or symbolic marks thereon representing distances from the camera to the object being photographed. A multi-position switch is provided which is operable independently of the shutter releasing mechanism of the camera to selectively feed current to illumination elements associated with the numerals or marks. In accordance with the position of the switch, an individual numeral or mark is illuminated.
申请公布号 JPS52153729(A) 申请公布日期 1977.12.21
申请号 JP19760071955 申请日期 1976.06.17
申请人 WEST ELECTRIC CO 发明人 IWATA HIROSHI
分类号 G03B3/02;G02B7/28;G03B13/32;G03B17/18;G03B17/20 主分类号 G03B3/02
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