Title:
MARKER LAMP FOR VEHICLE
Document Type and Number:
Japanese Patent JP2015080963
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a marker lamp capable of meeting the need for miniaturization.SOLUTION: A voltage supply part 11 supplies an operation voltage for bringing an organic EL element 10 as a power source into a lighting operation. A voltage measurement part 12 periodically measures a photovoltaic voltage generated in the organic EL element, without reference to a lighting/lights-out state of the organic EL element 10. A voltage control part 13 shuts off supply of the operation voltage when the photovoltaic voltage is measured by the voltage measurement part 12.
Inventors:
ONODA YUKIO
SHITO MASAYA
ICHIKAWA TOMOYUKI
SHITO MASAYA
ICHIKAWA TOMOYUKI
Application Number:
JP2013218458A
Publication Date:
April 27, 2015
Filing Date:
October 21, 2013
Export Citation:
Assignee:
KOITO MFG CO LTD
International Classes:
B60Q1/44; F21S8/10; F21S8/12; F21V23/00
Attorney, Agent or Firm:
Shinei Patent Office