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Patent Searching and Data


Title:
RELAY LENS AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2018/123583
Kind Code:
A1
Abstract:
The inclination of a lens in the vicinity of the pupil is suppressed and the generation of axial coma aberration is suppressed. A relay lens is provided having a plurality of relay optical systems 2 arranged along the longitudinal direction inside an elongated rigid tube 6, the plurality of relay optical systems 2 reforming an image. Each relay optical system 2 is provided with a pair of rod lenses 31, 32 disposed with a gap therebetween in the longitudinal direction, a tube 4 disposed along the longitudinal direction between the pair of rod lenses 31, 32, and a positive lens 5 secured on the inner side of the tube 4 and having positive refractive power. The length of the tube 4 in the longitudinal direction is greater than the thickness in the longitudinal direction of the circumferential edge of the positive lens 5.

Inventors:
KATO TAKAYUKI (JP)
Application Number:
PCT/JP2017/044671
Publication Date:
July 05, 2018
Filing Date:
December 13, 2017
Export Citation:
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Assignee:
OLYMPUS CORP (JP)
International Classes:
G02B7/02; A61B1/00; A61B1/002; G02B13/00; G02B23/26
Foreign References:
JPH02272512A1990-11-07
JP2002540454A2002-11-26
JPS61282815A1986-12-13
JP2005017615A2005-01-20
JP2007133175A2007-05-31
Attorney, Agent or Firm:
UEDA, Kunio et al. (JP)
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