Title:
ライトガイド及び光源装置並びに内視鏡システム
Document Type and Number:
Japanese Patent JP5305946
Kind Code:
B2
Abstract:
Light from a light source enters a first small diameter fiber at an incident angle of 0°. Exit light from the first small diameter fiber has a substantially convex light intensity distribution in a diameter direction. Light from a light source enters a second small diameter fiber at an incident angle of 12°. Exit light from the second small diameter fiber has a substantially concave light intensity distribution in a diameter direction. The exit light from the first and second small diameter fibers enters a large diameter fiber via a fiber connector. Light inside the large diameter fiber has a substantially uniform light intensity distribution in a diameter direction with a light intensity not less than a predetermined value. The light is radiated as illumination light from a light exit section of the large diameter fiber.
Inventors:
Shimotsu Shinichi
Application Number:
JP2009014942A
Publication Date:
October 02, 2013
Filing Date:
January 27, 2009
Export Citation:
Assignee:
FUJIFILM Corporation
International Classes:
G02B6/04; A61B1/06; G02B6/00; G02B6/26; G02B6/42
Domestic Patent References:
| JP56101114A | ||||
| JP2007133239A | ||||
| JP57129037A | ||||
| JP2003322730A | ||||
| JP4241830A |
Attorney, Agent or Firm:
Kazunori Kobayashi