发明名称 |
Digital auto focus system utilizing a photodetector array |
摘要 |
An active auto focus system in which a beam of modulated energy is projected towards a subject to be focussed upon with the energy reflected therefrom directed towards a detector array. The detector array comprises a number of radiation responsive elements arranged in parallel rows and in a pattern which permits the reflected energy to impinge upon at least one detector in each of the rows simultaneously. The arrangement allows a digital type output indicative of the position of the reflected energy on the array and thus the position of the subject from the camera.
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申请公布号 |
US4317991(A) |
申请公布日期 |
1982.03.02 |
申请号 |
US19800129529 |
申请日期 |
1980.03.12 |
申请人 |
HONEYWELL INC. |
发明人 |
STAUFFER, NORMAN L. |
分类号 |
G01C3/06;G01C3/00;G01S17/46;G01S17/88;G02B7/28;G02B7/32;G03B13/20;G03B13/36;(IPC1-7):G01C3/08;G03B3/10 |
主分类号 |
G01C3/06 |
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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