Title:
ビーム変換光学系および光源装置
Document Type and Number:
Japanese Patent JP7117611
Kind Code:
B2
Abstract:
The present disclosure provides a beam converting optical system that is small and has high divergence angle, and provides a light source device. Beam converting optical system according to an aspect of the present disclosure includes first optical element and second optical element. First optical element is a cylindrical lens. The cylindrical lens of first optical element has first optical surface and second optical surface. First optical surface has positive refractive power. Second optical element is a cylindrical lens. The cylindrical lens of second optical element has third optical surface and fourth optical surface. Third optical surface has negative refractive power. Laser beam converges at focal area. Focal area is between first optical element and second optical element.
Inventors:
Ryo Haseyama
Application Number:
JP2019558120A
Publication Date:
August 15, 2022
Filing Date:
November 21, 2018
Export Citation:
Assignee:
Panasonic IP Management Co., Ltd.
International Classes:
G02B27/09; G02B13/00; G02B13/18
Domestic Patent References:
| JP2007316157A | ||||
| JP2000305039A | ||||
| JP5069172A | ||||
| JP2003322814A | ||||
| JP2011187968A |
Foreign References:
| US20090237915 | ||||
| US20180120434 |
Attorney, Agent or Firm:
Kenji Kamata
Koichi Nomura
Koichi Nomura