Title:
Laser light source device
Document Type and Number:
Japanese Patent JP6115609
Kind Code:
B2
Abstract:
A laser light source device has a semiconductor laser element, a heat transfer portion having thermal conductivity and connected to the semiconductor laser element, a cooler connected to the heat transfer portion on a side different from the semiconductor laser element, a control object temperature measurement section that measures a control object temperature as the temperature of the heat transfer portion or the cooler, an environmental temperature measurement section that measures an environmental temperature of the laser light source device, and a controller that controls the cooler. The controller is configured to control the cooler such that the control object temperature approaches a predetermined target temperature set according to the environmental temperature. The target temperature set when the environmental temperature is lower than a specific temperature is lower than the target temperature set when the environmental temperature is higher than the specific temperature.
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| WO/2021/059805 | SEMICONDUCTOR LIGHT-EMITTING DEVICE |
Inventors:
Akihiro Shimizu
Application Number:
JP2015199686A
Publication Date:
April 19, 2017
Filing Date:
October 07, 2015
Export Citation:
Assignee:
Ushio, Inc.
International Classes:
H01S5/024
Domestic Patent References:
| JP2013195018A | ||||
| JP7131111A | ||||
| JP11126939A | ||||
| JP2013225557A |
Attorney, Agent or Firm:
Patent Business Corporation Unias International Patent Office
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