发明名称 |
AUTOMATICALLY FOCUSING DEVICE |
摘要 |
PURPOSE:To render possible an automatical focusing with a good followup action in a relatively simple manner; this being accomplished by making a histogram from differentiated values for focused and defocused images to determine a resonable threshold, and counting and comparing said values. |
申请公布号 |
JPS5244653(A) |
申请公布日期 |
1977.04.07 |
申请号 |
JP19750119735 |
申请日期 |
1975.10.06 |
申请人 |
HITACHI LTD |
发明人 |
SHIMADA TAMOTSU;SUZUKI RIYUUICHI;YAMAMOTO SHINJI |
分类号 |
G03B13/36;G02B7/38;G02B27/40 |
主分类号 |
G03B13/36 |
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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