Title:
LIGHT SOURCE MODULE
Document Type and Number:
Japanese Patent JP2020197683
Kind Code:
A
Abstract:
To provide a light source module with which it is easy to position a collimator lens and possible to reduce misalignment of an optical axis of a laser even when an adhesive expands or contracts due to a change of an environment temperature.SOLUTION: Provided is a light source module comprising a collimator lens and a lens holder for holding the collimator lens, the lens holder including a first pillar projecting toward a peripheral flat part at a convex side of the collimator lens from a face opposite the peripheral flat part at the convex side of the collimator lens, and a second pillar projecting in the same direction as the first pillar from a face opposite the peripheral flat part at the convex side of the collimator lens. A side face of the collimator lens is in contact with a side face of the second pillar at two points, an amount of projection of the second pillar is larger than an amount of projection of the first pillar, and the projection positions of the second and first pillars are shifted in a circumferential direction of the collimator lens.SELECTED DRAWING: Figure 2
Inventors:
OCHI MANABU
YAMAZAKI TATSUYA
ICHIKAWA FUMIHITO
YAMASHITA MASAFUMI
YAMAZAKI TATSUYA
ICHIKAWA FUMIHITO
YAMASHITA MASAFUMI
Application Number:
JP2019105564A
Publication Date:
December 10, 2020
Filing Date:
June 05, 2019
Export Citation:
Assignee:
HITACHI LG DATA STORAGE INC
International Classes:
G02B26/10; G02B7/02; H01S5/022
Attorney, Agent or Firm:
Aoritsu patent business corporation