Title:
LIGHT-EMITTING DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/120172
Kind Code:
A1
Abstract:
A light-emitting device (100) comprises: an array light source (1) including a plurality of light-emitting units (10); a first lens (2) that irradiates a region to be irradiated with light emitted by the array light source (1); a movement mechanism (3) that relatively moves the first lens (2) and the array light source (1) in a direction crossing the optical axis of the first lens (2); and a control unit (4) including a light emission control unit that controls light emission of each of the plurality of light-emitting units (10), and a movement control unit that controls the operation of the movement mechanism (3). The light emission control unit controls light emission within a predetermined period of each of the plurality of light emission units, the movement control unit controls the operation of the movement mechanism such that the first lens and the array light source perform relative movement within the predetermined period, the relative movement includes first relative movement in which the first lens (2) and the array light source (1) relatively move along a first direction, each of the plurality of light-emitting units (10) has a light-emitting surface (11), the light emitting surfaces of the light-emitting units adjacent to each other are disposed with a first light-emitting surface spacing therebetween, and the distance of the first relative movement is a distance greater than or equal to the shorter of the first light emitting surface spacing or the width of the light-emitting surface 11 along the first direction.
Inventors:
YOSHIDA NORIMASA (JP)
Application Number:
PCT/JP2022/044982
Publication Date:
June 29, 2023
Filing Date:
December 06, 2022
Export Citation:
Assignee:
NICHIA CORP (JP)
International Classes:
G03B15/05; F21S2/00; G03B15/02; H01L33/58; H04N23/56; F21Y115/10
Domestic Patent References:
| WO2010071191A1 | 2010-06-24 | |||
| WO2021171695A1 | 2021-09-02 |
Foreign References:
| JP2008122463A | 2008-05-29 | |||
| JP2007101342A | 2007-04-19 | |||
| JP2008158247A | 2008-07-10 | |||
| JP2000338557A | 2000-12-08 | |||
| JP2014010336A | 2014-01-20 |
Attorney, Agent or Firm:
ITOH, Tadashige et al. (JP)
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