Title:
LIGHT SOURCE DEVICE
Document Type and Number:
Japanese Patent JP2023061241
Kind Code:
A
Abstract:
To provide a light source device which has good light collecting performance.SOLUTION: A light source device 100 comprises: one or more optical members each having a plurality of light emitting parts 113 aligned along at least an alignment direction, a first reflection surface 21 and a second reflection surface 22, the optical members reflecting light from the plurality of light emitting parts 113 and emitting the light in a prescribed direction; and a condenser lens 4 for condensing the light emitted from the one or more optical members. The first reflection surface 21 reflects the light emitted from the plurality of light emitting parts 113 toward the second reflection surface 22, the second reflection surface 22 reflects the light reflected by the first reflection surface 21. The first reflection surface 21 and the second reflection surface 22 are faces having curvature radii in the alignment direction, where the curvature radius (1/R2) of the second reflection surface 22 in the alignment direction is larger than the curvature radius (1/R1) of the first reflection surface 21 in the alignment direction.SELECTED DRAWING: Figure 1
Inventors:
KANAZAWA TATSUYA
TANAKA MASANOBU
TANAKA MASANOBU
Application Number:
JP2021171108A
Publication Date:
May 01, 2023
Filing Date:
October 19, 2021
Export Citation:
Assignee:
NICHIA KAGAKU KOGYO KK
International Classes:
F21S2/00; G02B3/00; G02B3/02; G02B6/42; G02B17/08; H01S5/02251; H01S5/02255
Attorney, Agent or Firm:
Tadashige Ito
Tadahiko Ito
Tadahiko Ito