发明名称 |
Exposure meter |
摘要 |
An exposure meter has both function of an incident light type exposure meter for measuring an exposure value of an object by an incident light to the object and a reflected light type exposure meter for measuring exposure value of the object by a reflected light from the object. A latitude of a film is calculated from the exposure value by the incident light. The exposure value by the incident light and an upper and a lower limit values of the latitude are displayed on a display device. At least one exposure value measured by the reflected light is further displayed on the display device comparably with the latitude.
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申请公布号 |
US2002030806(A1) |
申请公布日期 |
2002.03.14 |
申请号 |
US20010948096 |
申请日期 |
2001.09.07 |
申请人 |
GOTO YASUSHI;YUASA YOSHIO |
发明人 |
GOTO YASUSHI;YUASA YOSHIO |
分类号 |
G01J1/42;(IPC1-7):G01J1/42 |
主分类号 |
G01J1/42 |
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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