lens barrel

A lens barrel and lens technology, applied in instruments, televisions, installations, etc., can solve the problems of complex structure, increased number of parts, deviation of the optical axis of the lens, etc., and achieve the effect of simple and reliable fixation
CN105652406BActive Publication Date: 2018-06-05OM DIGITAL SOLUTIONS CORP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
OM DIGITAL SOLUTIONS CORP
Publication Date
2018-06-05

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Abstract

The invention provides a lens barrel. In order to provide a fixed lens barrel capable of performing core adjustment (optical axis adjustment) of the lens simply and reliably, the lens barrel of the present invention has: a first frame (20); a second frame (15), which can Relatively moving relative to the first frame in the direction perpendicular to the optical axis; an adjustment member (39), which is used to adjust the amount of relative movement; two adjustment member receiving parts (36a), which are between the first frame and the second frame In the radial direction between them, they are formed so as to be spaced apart from each other in the circumferential direction, and can accommodate adjustment components; a plurality of screws (36x); a plurality of fastening parts (36z), which are used to connect the first frame and the The second frame is screwed and fastened parallel to the optical axis; and a washer member (36) is integrally sandwiched between the plurality of screws and the plurality of fastening parts.
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Description

technical field

[0001] The present invention is a technical idea related to simplification of the core adjustment (optical axis adjustment) structure of an imaging optical system in a lens barrel and improvement of adjustment accuracy. Background technique

[0002] Conventionally, a lens barrel used in an imaging device such as a camera is composed of an imaging optical system composed of a plurality of optical lenses, a plurality of cylindrical or annular frame members, a driving mechanism, and the like. As the plurality of frame members, there is, for example, a lens holding frame configured to hold a plurality of lens groups constituting the imaging optical system and move forward and backward in a direction along the optical axis for focusing and zooming.

[0003] In conventional lens barrels, in order to maintain the optical performance of the imaging optical system, after adjusting the decentering of the centers of the optical axes of a plurality of lens groups and per...

Claims

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