Title:
SYSTEM FOR EXPANDING IRRADIATION RANGE OF LASER LIGHT
Document Type and Number:
WIPO Patent Application WO/2023/037932
Kind Code:
A1
Abstract:
A system according to the present invention comprises: a first optical fiber for transmitting laser light from a light source; a second optical fiber for emitting laser light, the second optical fiber being different from the first optical fiber; and a device optically connected to the first optical fiber and the second optical fiber, the device comprising a casing having an internal space, a first lens disposed in the internal space, and a second lens disposed in the internal space. The first lens and the second lens are arranged such that the laser light exiting the first optical fiber passes through the first lens and then passes through the second lens to enter the second optical fiber. The numerical apertures of the first lens and the first optical fiber are smaller than the numerical apertures of the second lens and the second optical fiber.
Inventors:
OKA KIYOSHI (JP)
Application Number:
PCT/JP2022/032627
Publication Date:
March 16, 2023
Filing Date:
August 30, 2022
Export Citation:
Assignee:
OK FIBER TECH CO LTD (JP)
International Classes:
G02B23/26; A61B1/07; F21S2/00; F21V8/00; G02B6/32; F21Y115/30
Domestic Patent References:
| WO2020036112A1 | 2020-02-20 | |||
| WO2019131947A1 | 2019-07-04 |
Foreign References:
| US4953937A | 1990-09-04 | |||
| JP2008040042A | 2008-02-21 | |||
| JP2013145344A | 2013-07-25 | |||
| JP2015223463A | 2015-12-14 |
Attorney, Agent or Firm:
YAMAMOTO, Shusaku et al. (JP)
Download PDF: