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Patent Searching and Data


Title:
LIGHTING DEVICE AND IMAGING DEVICE
Document Type and Number:
WIPO Patent Application WO/2015/170477
Kind Code:
A1
Abstract:
A lighting device is provided with: a flash discharge tube (8) wherein gas is sealed; a light emitting operation control element (10) connected to the flash discharge tube (8); a control circuit (27) for controlling the light emitting operation control element (10); a trigger circuit (TC) for exciting the gas to a state generating dielectric breakdown within the flash discharge tube (8); and a resistor (28) connected to the flash discharge tube (8) and the control circuit (27). The control circuit (27) operates the trigger circuit (TC) such that dielectric breakdown occurs within the flash discharge tube (8) in a state where the light emitting operation control element (10) is non-conductive. Furthermore, when an amount of electrical change for generating dielectric breakdown is detected in the resistor (28) for detection, the light emitting operation control element (10) is given a conductive state. Thus, a lighting device without light emission being interrupted is achieved.

Inventors:
TAKAHASHI YUTA
Application Number:
PCT/JP2015/002323
Publication Date:
November 12, 2015
Filing Date:
May 07, 2015
Export Citation:
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Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
G03B15/05; G03B15/03; H05B41/30
Foreign References:
JP2004039376A2004-02-05
JPH06507753A1994-09-01
JP2007316202A2007-12-06
JP2006171280A2006-06-29
JPS6314174U1988-01-29
Attorney, Agent or Firm:
FUJII, Kentaro et al. (JP)
Fujii Kentaro (JP)
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