Title:
A manufacturing method of a lens drive, and a lens drive
Document Type and Number:
Japanese Patent JP6207875
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a lens driving device manufacturing method that enables expansion of an allowable range of variation of a spring constant of a leaf spring used in a lens driving device even when a movement resolution of a movable body can be fallen within a predetermined reference range.SOLUTION: In a manufacturing method of a lens driving device 1 provided with a movable body 2, a stationary body 3 holding the movable body 2 movably in an optical axis direction, a driving mechanism 4 having a driving coil 20 to be anchored to the movable body 2 and a driving magnet 21 to be anchored to the stationary body 3, and driving the movable body 2 in the optical axis direction, and leaf springs 5 and 6 connecting the movable body 2 to the stationary body 3, a movement amount of the movable body 2 per unit of an electrical current to be supplied to the driving coil 20 is defined as a movement resolution of the movable body 2, the leaf spring 5 and the leaf spring 6 are selected by combining them so that the movement resolution is fallen within a predetermined reference range, and then, the leaf springs 5 and 6 are attached to the movable body 2 and the stationary body 3.
Inventors:
Takeshi Sue
Application Number:
JP2013099095A
Publication Date:
October 04, 2017
Filing Date:
May 09, 2013
Export Citation:
Assignee:
Nidec Sankyo Co., Ltd.
International Classes:
G02B7/04
Domestic Patent References:
| JP2014062976A | ||||
| JP2010097016A | ||||
| JP2008281820A | ||||
| JP2009122360A | ||||
| JP2009122602A | ||||
| JP2010276850A | ||||
| JP2008122470A |
Attorney, Agent or Firm:
Shin Kodaira
Shiro Yokozawa
Toru Kawai
Kawaguchi Nobuko
Shiro Yokozawa
Toru Kawai
Kawaguchi Nobuko
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