发明授权
- 专利标题: Contrast sensing apparatus for automatic focus systems
- 专利标题(中): 自动对焦系统对比度感应装置
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申请号: US965361申请日: 1978-11-30
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公开(公告)号: US4247762A公开(公告)日: 1981-01-27
- 发明人: Dennis J. Wilwerding
- 申请人: Dennis J. Wilwerding
- 申请人地址: MN Minneapolis
- 专利权人: Honeywell Inc.
- 当前专利权人: Honeywell Inc.
- 当前专利权人地址: MN Minneapolis
- 主分类号: G02B7/30
- IPC分类号: G02B7/30 ; G01J1/36
摘要:
An improved automatic focus system wherein circuitry is provided to inhibit the focusing function when the scene being viewed provides too little contrast for satisfactory operation.
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