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Patent Searching and Data

Document Type and Number:
WIPO Patent Application WO/2019/187188
Kind Code:
This endoscope 101 is provided with: an optical unit 1 that includes a non-magnetic fixed frame 32, a magnetic movable frame 47 that holds a movable lens 48 and is arranged so as to be capable of advancing and retracting inside the fixed frame 32, and an actuator 40 that advances and retracts the movable frame 47 along the imaging optical axis O; and the actuator 40 that includes a coil 41 wound around the fixed frame 32, and a magnet 43 installed along the imaging optical axis O on the outer circumference of the coil 41. The optical unit 1 is mounted in the distal end part 110 so that the center axis X of the distal end part 110 is coaxial with the imaging optical axis O, and has: a space A formed inside the distal end part 110 and in the vicinity of the coil 41 around the center axis X within the range of the protrusion amount of the magnet 43 from the outer circumference of the coil 41; and an endoscope built-in object 31 installed in the space A.

NAGAMIZU Hiroyuki (2951 Ishikawa-machi Hachioji-sh, Tokyo 07, 〒1928507, JP)
Application Number:
Publication Date:
October 03, 2019
Filing Date:
July 25, 2018
Export Citation:
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OLYMPUS CORPORATION (2951 Ishikawa-machi, Hachioji-shi Tokyo, 07, 〒1928507, JP)
International Classes:
A61B1/00; A61B1/05; A61B1/07; G02B7/04; G02B7/08; G02B23/26
Domestic Patent References:
Foreign References:
Attorney, Agent or Firm:
ITOH Susumu (Musashi Bldg, 4-4 Nishishinjuku 7-chome, Shinjuku-k, Tokyo 23, 〒1600023, JP)
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