发明授权
- 专利标题： Electronic apparatus, lighting apparatus and method of calculating electric quantity thereof
- 专利标题（中）： 电子设备，照明装置及其电量的计算方法
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申请号： US12285288申请日： 2008-10-01
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公开(公告)号： US07761004B2公开(公告)日： 2010-07-20
- 发明人: Naoto Yamada , Hideki Matsui , Zhaoxiang Chen
- 申请人： Naoto Yamada , Hideki Matsui , Zhaoxiang Chen
- 申请人地址： JP Tokyo
- 专利权人： Nikon Corporation
- 当前专利权人： Nikon Corporation
- 当前专利权人地址： JP Tokyo
- 代理机构： Oliff & Berridge, PLC
- 优先权： JP2006-104044 20060405
- 主分类号： G03B7/26
- IPC分类号： G03B7/26 ; H05B37/00 ; H05B39/00 ; H05B41/14
摘要：
A fully charged battery or an unused battery is set in a battery box of a lighting apparatus. A user turns on an illumination electric source of the apparatus and selects the battery. A maximum number of lighting times Smax when the lighting apparatus causes manual full lighting M1/1 by using the selected battery is stored in a memory of a microcomputer or IC by a user according to an operating button or an instruction on a liquid crystal screen. Next, the user performs normal shooting. A lighting amount (TTL lighting, manual full lighting, or the like) when the user performs shooting is converted to manual full lighting M1/1 to be obtained as a number of lighting times. By comparing the obtained number of lighting times with the maximum number of lighting times Smax, how many times of lighting can still be performed at a maximum is calculated.
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