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公开(公告)号:US4743931A
公开(公告)日:1988-05-10
申请号:US934841
申请日:1986-11-25
CPC分类号: G02B7/30
摘要: Apparatus for delivering distance information of a camera includes counter means which counts a relative distance corresponding to a movement of a taking lens. The counter means is reset when the taking lens reaches a reference position located at infinity. Using stored data (absolute distance factors) which is specific to a taking lens and the count in the counter means, an absolute distance is derived.
摘要翻译: 用于传送照相机的距离信息的装置包括计数装置,其对与拍摄镜头的移动相对应的相对距离进行计数。 当拍摄镜头到达无限远的参考位置时,计数器装置被复位。 使用特定于拍摄镜头的存储数据(绝对距离因子)和计数器装置中的计数,导出绝对距离。