Title:
LIGHTING CONTROL DEVICE, LIGHTING CONTROL METHOD, AND LIGHTING DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/264819
Kind Code:
A1
Abstract:
The objective of the present invention is to make the conduction time (lighting time) of a light emitting element more uniform. A method for time-dividedly driving a plurality of light source units, connected in parallel, by using a controller comprises steps in which (a) the controller (b) controls, to be in a closed state, one switch element among a plurality of switch elements connected in series to the plurality of light source units, respectively, (c) initiates the keeping of a specified time when the current flowing in a current path between a power supply circuit and the plurality of light source units reaches or exceeds a threshold, and (d) controls the one switch element to be in an open state when the specified time has passed.
More Like This:
Inventors:
SUGIYAMA TOMOKI (JP)
SATO MASAHIKO (JP)
SATO MASAHIKO (JP)
Application Number:
PCT/JP2022/022425
Publication Date:
December 22, 2022
Filing Date:
June 02, 2022
Export Citation:
Assignee:
STANLEY ELECTRIC CO LTD (JP)
International Classes:
H05B47/10
Foreign References:
| JPH02225148A | 1990-09-07 | |||
| JP2020198217A | 2020-12-10 | |||
| JP2014103039A | 2014-06-05 |
Attorney, Agent or Firm:
MUTSUKI PARTNERS (JP)
Download PDF:
Previous Patent: PHYSICAL CONDITION DETECTION METHOD, PHYSICAL CONDITION DETECTION DEVICE, AND PROGRAM
Next Patent: WINDOW REGULATOR AND VEHICLE DOOR
Next Patent: WINDOW REGULATOR AND VEHICLE DOOR