Driving mechanism, driving device and electronic equipment

A driving device and driving mechanism technology, applied in the field of driving devices, electronic equipment, and driving mechanisms, can solve the problems of slow focusing speed, inability to meet higher requirements on accuracy, and impact on imaging effects, and achieve high focusing accuracy and high precision. Effect

Pending Publication Date: 2020-10-30
NEW SHICOH MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the existing drive mechanism for realizing the continuous zoom function, the drive adopts two drive mechanisms respectively, which are generally the same type of drive mode, and the respective drive modes of the two groups of lenses cause positional deviations in the direction of the optical axis respectively, so that The imaging effect is affected, and higher requirements for precision cannot be met, and the focus speed of the existing drive mechanism is relatively slow

Method used

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  • Driving mechanism, driving device and electronic equipment
  • Driving mechanism, driving device and electronic equipment
  • Driving mechanism, driving device and electronic equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] A driving mechanism, comprising a frame (1), a slide rail bracket (6) is provided inside the frame (1), a first carrier (7) is movably mounted on the slide rail bracket (6), and the first carrier The side of (7) is provided with a piezoelectric motor (8), and the piezoelectric motor (8) adopts GMR closed-loop control, and the output end of the piezoelectric motor (8) is connected and drives the first carrier (7) along the slide rail support (6 )move;

[0051] A second lens (4) is fixed on the front side of the first carrier (7);

[0052] The rear side of the first carrier (7) is provided with a continuous zoom motor (10) and a second carrier (9), the autofocus motor (10) adopts open-loop control or closed-loop control of Hall elements, and the autofocus motor ( 10) Connect and drive the second carrier (9), on which the third lens (5) is arranged.

[0053] The side of the frame (1) is provided with a mounting groove (101), the first lens (3) is fixedly arranged in the mo...

Embodiment 2

[0064] A driving device has the driving mechanism as described in Embodiment 1. In this embodiment, other structures of the driving device are the same as those of the prior art, so no detailed description is given here.

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Abstract

The invention discloses a driving mechanism which comprises a frame, and a carrier assembly and a driving assembly are arranged in the frame. The carrier assembly comprises a first carrier and a second carrier arranged on the first carrier. The driving assembly comprises a first driving device and a second driving device; the first driving device is arranged in the frame, closed-loop control is adopted for the first driving device, and the output end of the first driving device is connected with and drives the first carrier; and the second driving device is arranged on the first carrier, open-loop or closed-loop control is adopted for the second driving device, and the second driving device is connected with and drives the second carrier. A second lens is driven by piezoelectric motor + GMR closed-loop control, and a third lens is driven by an automatic focusing motor through open-loop control or by a Hall element through closed-loop control. Compared with pure Hall detection element control driving in the prior art, high precision can be achieved.

Description

technical field [0001] The invention relates to the field of periscope motors, in particular to a driving mechanism, a driving device and electronic equipment. Background technique [0002] Most of the existing continuous zoom driving mechanisms are a combined structure of two lenses, or a combined structure containing three lenses, wherein at least two lenses in such a driving mechanism are movable, and the driving methods between them are all respective drive; [0003] In the existing drive mechanism for realizing the continuous zoom function, the drive adopts two drive mechanisms respectively, which are generally the same type of drive mode, and the respective drive modes of the two groups of lenses cause positional deviations in the direction of the optical axis respectively, so that The imaging effect is affected, and higher requirements for precision cannot be met, and the focusing speed of the existing driving mechanism is relatively slow. Contents of the invention...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B7/09G03B13/36
CPCG02B7/09G03B13/36
Inventor 王在伟
Owner NEW SHICOH MOTOR CO LTD
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