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Patent Searching and Data


Title:
LIGHT IRRADIATION DEVICE AND LIGHT IRRADIATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2021/059797
Kind Code:
A1
Abstract:
This light irradiation device is provided with a first optical fiber which is arranged on the tip side of the light irradiation device, and a second optical fiber which, arranged on the base side of the first optical fiber, is connected at the base end to a light source and is connected at the tip end either directly or indirectly to the first optical fiber. The first optical fiber has a first core, the second optical fiber has a second core, and the minimum value of the numerical aperture of the first optical fiber is greater than the minimum value of the numerical aperture of the second optical fiber.

Inventors:
KATSURADA YUKO (JP)
TSUKAMOTO TOSHIHIKO (JP)
Application Number:
PCT/JP2020/030967
Publication Date:
April 01, 2021
Filing Date:
August 17, 2020
Export Citation:
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Assignee:
ASAHI INTECC CO LTD (JP)
International Classes:
A61N5/06; A61N5/067; G02B6/32; G02B6/38
Foreign References:
JPH0614936A1994-01-25
JP2013090953A2013-05-16
JP2002521713A2002-07-16
JP2008148951A2008-07-03
Attorney, Agent or Firm:
TANABE Junya et al. (JP)
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