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Optical focusing mechanism

A focusing device and optical technology, applied in the direction of focusing devices, optics, optical components, etc., to achieve the effect of easy firmness, easy manufacture, and convenient assembly

Inactive Publication Date: 2008-08-20
IND TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] In view of the above-mentioned shortcomings of the prior art, how to provide an optical focusing device to achieve the functions of large driving torque, small size, simple components, firm structure, easy manufacture and convenient assembly, and then overcome the problems existing in the background technology has become a Problems that the industry needs to overcome

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Embodiment Construction

[0080] The specific embodiments of the present invention are described below with reference to the accompanying drawings, so that those skilled in the art can easily understand the technical features and effects of the present invention.

[0081] like Figure 5 As shown, it is a schematic diagram showing the first embodiment of the optical focusing device of the present invention. The optical focusing device provided by the present invention includes a base 2, a sleeve 3 that is axially connected to the base, and is screwed to the sleeve 3. The lens 4, and the piezoelectric actuator 5 fixed in the base body for contacting and driving the rotation of the sleeve 3, the base body 2 and the lens 4 are respectively provided with a first guide part 232 and a corresponding positioning slide. The second guide part 431 can drive the sleeve 3 to rotate through the piezoelectric actuator 5 to switch and drive the lens 4 to focus, so that the optical focusing device with simple components...

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Abstract

The invention provides an optical focusing device, including base, sleeve which is coupled with the base, screw thread is connected with lens of the sleeve, and piezoelectric actuator which is fixed in the base for contiguously driving sleeve rotating, the base and the lens are respectively equipped with corresponding locating sliding first guiding part and second guiding part, then the sleeve is driven to rotate for converting and forcing the lens to focus. So the optical focusing device having simple components improves the driving force and overcomes the defects that the component with prior art is complex.

Description

technical field [0001] The invention relates to a driving technology of an optical lens, in particular to a piezoelectric-driven optical focusing device. Background technique [0002] In recent years, the optical system used in mobile phones or cameras, due to the limitation of its own thickness, will make the structure of the optical system and actuator as simple as possible, and the volume as small as possible, so as to adapt to the development trend of low architecture of such devices. Piezoelectric actuators have the advantages of small size, large output, low power consumption, silence and high compatibility, and are used in digital cameras or camera phones to drive optical lenses to make the optical lenses zoom in Or the effect of zooming out has become one of the important technologies of optical systems or related products. [0003] my country’s Patent of Invention No. 589777 discloses a multi-layer thin-disc piezoelectric actuated ultrasonic motor, which passes a p...

Claims

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Application Information

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IPC IPC(8): G02B7/04G03B13/32H01L41/08H01L41/02
Inventor 苏汉威胡朝彰
Owner IND TECH RES INST
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