Title:
LIGHTING DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/048166
Kind Code:
A1
Abstract:
Provided is a lighting device capable of more appropriately controlling the change of the light distribution shape of light. This lighting device includes: a light source unit that emits light; a light distribution shape setting unit for setting the light distribution shape of light from the light source unit; a storage unit that stores light distribution shape data relating to the light distribution shape; and a control unit that controls the light distribution shape setting unit on the basis of the light distribution shape data. The light distribution shape setting unit sets the light distribution shape according to a signal level inputted from the control unit, and when changing the signal level inputted to the light distribution shape setting unit from a first level to a second level, the control unit changes the signal level from the first level to a third level between the first level and the second level, and after maintaining the third level for a predetermined time, changes the signal level from the third level to the second level.
Inventors:
SAITO HITOSHI (JP)
SHAO GANG (JP)
SHAO GANG (JP)
Application Number:
PCT/JP2023/028018
Publication Date:
March 07, 2024
Filing Date:
July 31, 2023
Export Citation:
Assignee:
JAPAN DISPLAY INC (JP)
International Classes:
H05B47/105; F21S2/00; F21V9/40; G02F1/13; G02F1/1347; H05B47/16; F21Y115/10
Domestic Patent References:
| WO2012074056A1 | 2012-06-07 |
Foreign References:
| JP2008270089A | 2008-11-06 |
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (JP)
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