Title:
OPTICAL AXIS ADJUSTMENT UNIT, OPTICAL INSTRUMENT, OPTICAL AXIS ADJUSTMENT SYSTEM, AND OPTICAL AXIS ADJUSTMENT METHOD
Document Type and Number:
WIPO Patent Application WO/2022/210718
Kind Code:
A1
Abstract:
The present invention provides an optical axis adjustment unit, etc. that make it possible to accurately adjust the optical axis of a general-purpose camera module. An optical axis adjustment unit according to the present invention is provided with: a camera module having a circuit board, an imaging element, and a lens; a reinforcement plate to which the circuit board is fixed; a camera mounting plate mounted on an optical instrument in a state in which the reinforcement plate to which the camera module has been fixed is held; and fastening parts that are provided at at least three positions on the camera mounting plate and that fasten the reinforcement plate to the camera mounting plate. Each of the fastening parts has: a bolt that passes through a through-hole formed in the camera mounting plate and that is screwed into a screw hole formed in the reinforcement plate; and an elastic part through which the bolt is inserted between the camera mounting plate and the reinforcement plate. The interval between the reinforcement plate and the camera mounting plate can be adjusted by rotating the bolts, and the optical axis of the lens is adjusted with reference to the camera mounting plate as a result of the interval between the reinforcement plate and the camera mounting plate being adjusted at the fastening parts.
Inventors:
OHWADA ISAO (JP)
SANGAWA HARUMI (JP)
SANGAWA HARUMI (JP)
Application Number:
PCT/JP2022/015466
Publication Date:
October 06, 2022
Filing Date:
March 29, 2022
Export Citation:
Assignee:
IGUNOSS INC (JP)
International Classes:
G03B17/56; G02B7/02; G03B15/00; H04N5/225
Foreign References:
| JP2004082829A | 2004-03-18 | |||
| JP2017058552A | 2017-03-23 | |||
| JP2009024714A | 2009-02-05 | |||
| JP2010175399A | 2010-08-12 | |||
| JP2015126288A | 2015-07-06 |
Attorney, Agent or Firm:
AN Youhee (JP)
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