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Title:
FLASHING DEVICE AND AUXILIARY POWER SUPPLY DEVICE
Document Type and Number:
Japanese Patent JP2004109414
Kind Code:
A
Abstract:

To provide a flashing device and an auxiliary power supply device for surely preventing failure caused by missing replacement of a battery by always accurately informing a user of the residual capacity of the battery.

The flashing device is equipped with a light emitting part Xe emitting light by the charged charge of a main capacitor C2, a battery chamber in which a power supply battery is loaded, an attaching/detaching part to/from which the auxiliary power supply device 8 for connecting an external battery to the battery in the battery chamber in serial is attached/detached, a detection member SW3 detecting whether or not the device 8 is attached, and a battery check circuit 35 detecting the charging speed of the capacitor C2 and yielding output in accordance with the residual capacity of the battery based on the charging speed and the result of detection by the detection member.


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Inventors:
HAGYUDA SHINGI
OTA MASAKUNI
Application Number:
JP2002271150A
Publication Date:
April 08, 2004
Filing Date:
September 18, 2002
Export Citation:
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Assignee:
NIKON CORP
International Classes:
G03B7/26; G03B15/03; G03B15/05; H05B41/32; G03B15/02; (IPC1-7): G03B15/05; G03B15/02; G03B15/03; H05B41/32
Attorney, Agent or Firm:
Fuyuki Nagai