发明名称 |
AUTOMATICALLY FOCUSING METHOD AND DEVICE |
摘要 |
A system for determining the range to an object utilizing a plurality of radiation responsive detectors arranged in groupings wherein a first grouping of detectors receives radiation from the object in a first pattern and the second grouping of detectors receives radiation from the object in a second pattern. The patterns move with respect to one another as the distance between the object and the system changes. The range is determined from a determination of the relative position of the patterns by computing where the patterns will coincide if the focusing lens of the system is moved. The output is a signal having a characteristic indicative of the desired direction of motion of the lens and a characteristic indicative of the amount of such motion necessary to produce a proper focus condition. |
申请公布号 |
JPS5745510(A) |
申请公布日期 |
1982.03.15 |
申请号 |
JP19810101144 |
申请日期 |
1981.06.29 |
申请人 |
HONEYWELL INC |
发明人 |
RICHIYAADO EI RANGURAISU;FURANSHISU TEI OGAWA;DENISU JIEI UIRUBUERUDENGU |
分类号 |
G02B7/34;G02B7/28;G02B7/36;G03B13/36;G06F17/15 |
主分类号 |
G02B7/34 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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