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Patent Searching and Data


Title:
LIGHT DEFLECTOR
Document Type and Number:
WIPO Patent Application WO/2018/179041
Kind Code:
A1
Abstract:
A light deflector (100) is provided with: a movable part (112) having a reflection surface (114) for reflecting an incident light beam; a pair of elastic support parts (116) supporting the movable part (112) in an oscillatable manner; a movable core (130) provided to the movable part (112); and a fixed core unit (140) that generates a magnetic flux which acts on the movable core (130). The fixed core unit (140) is provided with: a fixed core (142) having a pair of end surfaces (144) facing each other; a coil (146) that generates a magnetic flux in the fixed core (142); and a permanent magnet (148) disposed between the pair of end surfaces (144) of the fixed core (142). The magnetization direction of the permanent magnet (148) is substantially perpendicular to the end surface (144). The coil (146) rotates around the fixed core (142) in order to generate, between the pair of end surfaces (144), a magnetic flux having a magnetization direction opposite to the magnetization direction of the permanent magnet (148).

Inventors:
KAMIYA, Yoshitaka (2951 Ishikawa-machi Hachioji-sh, Tokyo 07, 〒1928507, JP)
Application Number:
JP2017/012330
Publication Date:
October 04, 2018
Filing Date:
March 27, 2017
Export Citation:
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Assignee:
OLYMPUS CORPORATION (2951 Ishikawa-machi, Hachioji-shi Tokyo, 07, 〒1928507, JP)
International Classes:
G02B26/08
Foreign References:
JP2006126485A2006-05-18
US20040061960A12004-04-01
JP2008040353A2008-02-21
JP2002323669A2002-11-08
JP2008304667A2008-12-18
Attorney, Agent or Firm:
KURATA, Masatoshi et al. (11th Floor Celestine Shiba Mitsui Bldg., 3-23-1 Shiba, Minato-k, Tokyo 14, 〒1050014, JP)
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