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Electromagnetically Actuated Flexible Zoom Lens

A zoom lens and electromagnetic actuation technology, applied in optical components, instruments, optics, etc., can solve the problems of large volume and weight, high cost, and complex structure, and achieve the effect of small size, low cost, and simple structure

Active Publication Date: 2019-05-21
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The lens group produced by such a zoom method needs to use multiple lenses, so the volume and weight are large, the structure is complicated, and the cost is high

Method used

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  • Electromagnetically Actuated Flexible Zoom Lens
  • Electromagnetically Actuated Flexible Zoom Lens
  • Electromagnetically Actuated Flexible Zoom Lens

Examples

Experimental program
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Embodiment Construction

[0023] Exemplary embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood that these specific descriptions are only used to teach those skilled in the art how to implement the present invention, but are not intended to exhaust all possible ways of the present invention, nor are they intended to limit the scope of the present invention.

[0024] like figure 1 As shown, the electromagnetically actuated flexible zoom lens includes a lens, a first electromagnet and a second electromagnet. When the first electromagnet and the second electromagnet are energized, the repulsion force of the second electromagnet to the first electromagnet can make The lens is compressed, thereby changing the curvature of the arc surface of the lens and adjusting the focal length of the lens.

[0025] The lens, the first electromagnet and the second electromagnet are described respectively below:

[0026] lens

[0027] like figure...

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PUM

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Abstract

The invention discloses an electromagnetic actuating flexible zoom lens, and the zoom lens comprises a lens which is made of a light-transmitting, flexible and expandable silicone rubber material; a first electromagnet which is fixed at the peripheral edge of the lens; a second electromagnet which is disposed around the first electromagnet, wherein an acting force of the second electromagnet applied to the first electromagnet enables the lens to deform when the first and second electromagnets are electrically connected, thereby changing the focal length of the lens. In the zoom lens provided by the invention, a radial force is applied to the second electromagnet, so as to change the curvature of the curved surface of the lens and further change the focal length of the lens. The lens is small in size, is simple in structure, and is low in construction cost.

Description

technical field [0001] The invention relates to the field of optical lenses, in particular to an electromagnetically actuated flexible zoom lens. Background technique [0002] At present, the zooming of the lens needs to move the lenses in the lens group along the axial direction, thereby changing the distance between the lenses, and then changing the focal length of the lens group. A lens group manufactured by such a zooming method needs to use a plurality of lenses, so the volume and weight are large, the structure is complicated, and the cost is high. Contents of the invention [0003] In order to remedy the above shortcomings, the present invention aims to propose an electromagnetically actuated flexible zoom lens with small size, simple structure and low cost. [0004] An electromagnetically actuated flexible zoom lens comprising [0005] lens; [0006] a first electromagnet fixed to a peripheral portion of the lens; [0007] The second electromagnet, which surrou...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B26/08
CPCG02B26/0875
Inventor 冯雪程嘉辉马寅佶陈颖王宙恒
Owner TSINGHUA UNIV