Title:
LAMP UNIT CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2015/020207
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a lamp unit control device which can detect, with a simple configuration, disconnect that occurs in LEDs when a plurality of LEDs that are used as a light source in a lamp unit are caused to flash independently of each other, and which achieves lamp unit flashing having higher renderability. This lamp unit control device has a lamp control circuit (310) by which, on the basis of flashing patterns stipulated for time divisions which are formed by time dividing a period during which drive voltage is input, the flashing of each of a plurality of LEDs (411a, … 411i, 411j) is controlled so that the LEDs which will be lit are switched and so that in at least one time division all of the plurality of LEDs are lit.
Inventors:
AKAMINE HATSUSHI (JP)
SUGIYAMA KATSUMA (JP)
UMEHARA HIDEMASA (JP)
SUGIYAMA KATSUMA (JP)
UMEHARA HIDEMASA (JP)
Application Number:
PCT/JP2014/071075
Publication Date:
February 12, 2015
Filing Date:
August 08, 2014
Export Citation:
Assignee:
YAZAKI CORP (JP)
International Classes:
B60Q11/00; B60Q1/38; H05B37/03
Domestic Patent References:
| WO2007138713A1 | 2007-12-06 |
Foreign References:
| JPH07335002A | 1995-12-22 | |||
| JP2005075349A | 2005-03-24 | |||
| JPH08332897A | 1996-12-17 | |||
| JP2006248509A | 2006-09-21 |
Attorney, Agent or Firm:
HONDA Hironori et al. (JP)
Hironori Honda (JP)
Hironori Honda (JP)
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