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Patent Searching and Data

Document Type and Number:
WIPO Patent Application WO/2017/175672
Kind Code:
Provided is a single-axis rotary actuator that is suitable for rotationally driving an optical element, such as a diffraction grating, in a single-axis direction and that is suitable for forming light having a wide wavelength band. An actuator (500) includes a holder (550) having a mounting surface on which a diffraction grating (401) is attached and a rotary shaft (552); a fixed unit (520) having a bearing that holds the rotary shaft (552) of the holder (550); an elastic member (530) formed of an outer circumferential section fixed on the fixed unit (520), an inner circumferential section fixed on the holder (550), and an arm section interconnecting the outer circumferential section and the inner circumferential section and having elasticity; and a driving unit having a coil (540) provided on the holder (550) and a magnet (510) provided on the fixed unit (520).

SAITO, Masahiro
Application Number:
Publication Date:
October 12, 2017
Filing Date:
March 31, 2017
Export Citation:
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MITSUMI ELECTRIC CO., LTD. (2-11-2, Tsurumaki Tama-sh, Tokyo 67, 〒2068567, JP)
SAITO, Masahiro
International Classes:
G02B26/00; G01J3/06; G01J3/18
Attorney, Agent or Firm:
WASHIDA, Kimihito (8th Floor, Shinjuku First West Bldg. 1-23-7, Nishi-Shinjuku, Shinjuku-k, Tokyo 23, 〒1600023, JP)
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