Actuator for camera
A camera and actuator technology, which is applied in the direction of cameras, camera focusing devices, instruments, etc., can solve problems such as yield decline, reliability, durability difficulties, plastic deformation, etc., and achieve excellent productivity and durability. Effect
Inactive Publication Date: 2016-12-07
JAPAN AVIATION ELECTRONICS IND LTD
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- Description
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- Application Information
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Problems solved by technology
Therefore, when an unexpected external force is applied in the manufacturing process, the connecting portion 16c is easily deformed (plastically deformed), and there is a problem that the yield decreases.
[0010] In addition, if an impact is applied during use, for example, by dropping or the like, plastic deformation is likely to occur in the thin and thin connecting portion 16c. In this regard, the camera actuator using such a leaf spring has advantages in reliability and durability. difficulty
Method used
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Embodiment Construction
[0029] Hereinafter, examples of the present invention will be described.
[0030] image 3 One embodiment of the camera actuator of the present invention is shown in a state where a lens unit is attached, Figure 4 The camera actuator is shown with its cover removed and divided into a cover and an actuator main body. in addition, Figures 5A-5C Shows the actuator body in detail.
[0031] In this example, the camera actuator 200 has two functions of autofocus and hand shake correction, and can displace the lens unit 300 in the direction of the optical axis, thereby enabling the lens unit 300 to move in a direction perpendicular to the direction of the optical axis and mutually perpendicular to each other. Displacement in the first and second directions of . image 3 In , O represents the optical axis of the lens unit 300 . In addition, hereinafter, the optical axis direction of the lens unit 300 is referred to as the Z direction, and the first and second directions orthogo...
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An actuator for camera which drives a lens unit of a camera includes an outer frame, an inner frame which houses and holds the lens unit and is positioned inside the outer frame, a plurality of first supporting members which are provided between the outer frame and the inner frame and support the inner frame with respect to the outer frame so that the inner frame is displaceable in an optical axis direction of the lens unit, a first driving coil which is attached on an outer circumferential surface of the inner frame and drives the inner frame in the optical axis direction, and permanent magnets which are attached to the outer frame in a manner to be opposed to the first driving coil. The first supporting members are made of elastomer and have a shape of which a center line is a straight line which connects mutually opposed portions of the outer frame and the inner frame. An actuator for camera which is superior in productivity, reliability, and durability can be obtained.
Description
technical field [0001] The present invention relates to an actuator for a camera that drives a lens unit of a camera. Background technique [0002] figure 1 As a conventional example of such an actuator, the configuration of an autofocus actuator described in Japanese Patent Application Publication No. 2006-251728 (published on September 21, 2006) is disclosed. [0003] In this example, the autofocus actuator has: a holder 12 having a cylindrical portion 12a to which the lens assembly 11 is attached; a coil 13 positioned around the cylindrical portion 12a and fixed to the holder 12; The yoke 15 of the permanent magnet 14; the upper leaf spring 16U which is disposed on both sides in the optical axis direction of the cylindrical portion 12a of the holder 12 and displaceably supported in the optical axis direction with the holder 12 positioned in the radial direction; The lower leaf spring 16L; the stopper 17 clamping the upper leaf spring 16U between it and the bracket 12; t...
Claims
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IPC IPC(8): G02B7/09G03B13/36
CPCG02B7/09G03B13/36G02B7/08G02B27/646G03B3/10G03B2205/0069H02K5/04H02K5/24H02K41/0356
Inventor 山路崇洋松永章宏秋元比吕志茨木和昭小野文伸信藤纯
Owner JAPAN AVIATION ELECTRONICS IND LTD