Title:
OPTICAL PROBE
Document Type and Number:
WIPO Patent Application WO/2013/121959
Kind Code:
A1
Abstract:
Provided is an optical probe capable of precise OCT measurement with low noise even when a highly dispersive subject is measured. An optical probe (20) is provided with an optical fiber (21) for transmitting light between a proximal end (21a) and a distal end (21b), an optical connector (22) connected to the optical fiber (21) at the proximal end (21a), a collective optical system (23) and deflecting optical system (24) connected to the optical fiber (21) at the distal end (11b), and a support tube (25) and jacket tube (26) surrounding the optical fiber (21) and extending along the optical fiber (21). The optical fiber (21) includes a core region (41) having a refractive index n1, a first cladding region (42) surrounding the core region and having a refractive index n2, a trench region (43) surrounding the first cladding region and having a refractive index n3, and a second cladding region (44) surrounding the trench region and having a refractive index n4. The relationship of the refractive indexes is n1 > n2 > n3 < n4.
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Inventors:
HASEGAWA TAKEMI (JP)
HIRANO MITSUHARU (JP)
HIRANO MITSUHARU (JP)
Application Number:
PCT/JP2013/052816
Publication Date:
August 22, 2013
Filing Date:
February 07, 2013
Export Citation:
Assignee:
SUMITOMO ELECTRIC INDUSTRIES (JP)
International Classes:
G02B6/036; A61B1/00; G02B6/44; G02B23/26
Domestic Patent References:
| WO2010137375A1 | 2010-12-02 |
Foreign References:
| JP2012027454A | 2012-02-09 | |||
| JP2002275774A | 2002-09-25 | |||
| US6445939B1 | 2002-09-03 | |||
| US20090279835A1 | 2009-11-12 | |||
| US20020151823A1 | 2002-10-17 |
Other References:
See also references of EP 2706388A4
G. B. HOCKER, APPLIED OPTICS, vol. 18, no. 9, 1979, pages 1445 - 1448
G. B. HOCKER, APPLIED OPTICS, vol. 18, no. 9, 1979, pages 1445 - 1448
Attorney, Agent or Firm:
NAKATA, Motomi et al. (JP)
Nakada Motoki (JP)
Nakada Motoki (JP)
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Claims: