Adjustable lens mounting mechanism

Abstract

The invention discloses an adjustable mounting mechanism of a camera. Based on the invention, the first bracket is provided with the barrel shell with a full-surrounded structure, and the rack is attached to the barrel wall on one side of the barrel shell, so that the barrel shell with higher strength can improve the resistance to single-side stress concentration so as to inhibit the dislocation offset between the rack attached to the barrel wall of the barrel shell and the gear of the driving mechanism; moreover, the elastic force generated by the elastic element can reduce and weaken single-side stress concentration, and the tooth disengaging probability of meshing transmission is reduced. Therefore, the single-side stress concentration is weakened while the stability of the rack is improved, and the meshing transmission misalignment between the gear and the rack can be reduced or even avoided, so that the positioning precision of the lens module is improved. And if the first bracketand the lens module in the lens accommodating cavity take the cover plate for sealing the lens accommodating cavity as a positioning reference, the assembly precision of the lens module and the firstbracket can be further ensured, so that the positioning precision of the lens module is further improved.

Description

technical field [0001] The invention relates to camera lens installation technology, in particular to an adjustable lens installation mechanism. Background technique [0002] For scenes with moving objects such as snapshots, it is necessary to adjust the angle of the lens so that the field of view of the lens can dynamically track the moving object. [0003] In order to make the angle of the lens adjustable, the lens module can be installed on the bracket, so that the rotation of the bracket around its rotation axis under the power of the driving mechanism can provide the swing freedom for the bracket carrying the lens module. [0004] Among them, the driving mechanism and the bracket can adopt the transmission connection mode of gear and rack to realize the rotation precision control of the lens bracket with the pitch as the granularity. Correspondingly, the swing pose of the lens module depends on the rotation of the lens bracket angle. [0005] However, the transmission...

AI Technical Summary

Problems solved by technology

[0005] However, the transmission connection between the drive mechanism and the bracket is often only arranged on the isolated side wall on one side of the bracket, thereby forming a unilateral stress concentration on the bracket, and because the strength of the isolated side wall of the bracket is often not enough to resist the unilateral stress Concentration, thus causing the isolated side wall of the bracket to yield to unilateral stress concentration and deformation, such deformation will cause misalignment between the rack and the pinion, resulting in misalignment of the meshing transmission between the pinion and the rack (such as Detaching or locking teeth), thereby reducing the rotation accuracy control of the lens holder, and correspondingly, it will also affect the positioning accuracy of the lens module

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