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Patent Searching and Data


Title:
IMAGING OPTICAL SYSTEM AND ENDOSCOPE
Document Type and Number:
WIPO Patent Application WO/2018/225613
Kind Code:
A1
Abstract:
Provided are an imaging optical system that is for endoscope applications for steropsis and achieves both increased pixels and reduced flare, and an endoscope that has channels and achieves reduced flare. The imaging optical system is characterized by having two parallel optical systems OBJ-R, OBJ-L for imaging, and in that the flare aperture constitutions of the two optical systems OBJ-R, OBJ-L for imaging are different. In addition, the present invention is characterized by having the two optical systems OBJ-R, OBJ-L for imaging used for imaging for stereo viewing and a channel CH through which a treatment tool passes, and in that the gap between the optical axes Ax1, Ax2 for the two optical systems for imaging is 2 mm or less and the angle formed by a line joining the center of a line segment joining the centers of the lenses on the object side of the two optical systems for imaging and the centers of the channels and the line segment is within ±45°.

Inventors:
SUGA Takeshi (2951 Ishikawa-machi, Hachioji-sh, Tokyo 07, 〒1928507, JP)
Application Number:
JP2018/020919
Publication Date:
December 13, 2018
Filing Date:
May 31, 2018
Export Citation:
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Assignee:
OLYMPUS CORPORATION (2951, Ishikawa-machi Hachioji-sh, Tokyo 07, 〒1928507, JP)
International Classes:
G02B13/04; A61B1/00; G02B7/02; G02B23/26; G03B19/07; G03B35/08
Domestic Patent References:
WO2005027738A12005-03-31
Foreign References:
JP2006288821A2006-10-26
JP2014046075A2014-03-17
Attorney, Agent or Firm:
SAITO Keisuke (Surugadai-shita MK Bldg. 6F, 41-3 Kanda-jimbocho 1-chome, Chiyoda-k, Tokyo 51, 〒1010051, JP)
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