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Focal-distance and view-field-adjusting liquid microlens and its production

A manufacturing method and micro-lens technology, which is applied in the direction of lenses, optics, instruments, etc., can solve the problem that the field of view and the lens cannot be adjusted at the same time, and achieve the effect of precise focusing

Inactive Publication Date: 2007-09-05
SOUTHEAST UNIV
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  • Application Information

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Problems solved by technology

[0004] Technical problem: The object of the present invention is to provide a microlens with adjustable focal length and field of view and its manufacturing method, aiming at the simultaneous adjustment of the field of view and the lens of the current microlens lens group, so as to realize the close-range and far-field adjustment of the lens group. Fine focusing between distances

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  • Focal-distance and view-field-adjusting liquid microlens and its production
  • Focal-distance and view-field-adjusting liquid microlens and its production
  • Focal-distance and view-field-adjusting liquid microlens and its production

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Embodiment Construction

[0028] The embodiment of the microlens lens group with adjustable focal length and field of view of the present invention is as follows: 1) utilize the method for micro-injection molding to form the microcavity of microfluid in PDMS or other transparent film, concrete manufacturing process is as shown in Figure 4, obtains The plane layout of the microcavity is shown in Figure 5; 2) PDMS is bonded by pressure bonding after general plasma treatment (oxygen at 100---1500W, vacuum 500Torr microwave plasma treatment device for 15-60min) (about 1000Pa of pressure); 3) will inject the PDMS film that syringe liquid or water is injected into cavity and process with oxygen plasma to seal the injection port (the maximum pressure of cavity is about 10Psi); 4) Piezoelectric film outside PDMS microcavity ( PVDF) to apply a voltage (0-450V), or to apply a driving voltage (0-450V) to the original ring piezoelectric ceramics and axial piezoelectric ceramics (PZT) to change the curvature of the ...

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Abstract

A liquid micro-lens with focal distance and field being able to be adjusted is prepared as arranging the first circular radial piezoelectric material and the second circular radial piezoelectric material separately on internal wall of lens cone, arranging axial deformation piezoelectric material on the rest part of internal wall on lens cone and setting the first liquid micro-lens and the second liquid micro-lens correspondingly and separately to internal circles of two said piezoelectric materials.

Description

technical field [0001] The invention relates to a design and manufacturing process of a micro-lens with adjustable focal length and field of view, which combines micro-fluidic control devices, elastic body micro-deformation control, and surface gradient processing technology, and belongs to micro-manufacturing, surface modification technology and Intersecting technical fields of micro-optics technology. Background of the invention [0002] With the increasing demand for portable camera devices, the production and assembly of micro-lens modules for various mobile phones, notebooks, and monitors has formed a huge characteristic industry of electronic manufacturing. The annual production capacity of mobile phones in the world is close to 900 million units, of which about 560 million units are camera phones, so the demand for camera lenses of various sizes is also very alarming. Miniature lens currently on the market mainly adopts small-sized glass or plastics to obtain small l...

Claims

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Application Information

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IPC IPC(8): G02B3/14G02B3/12
Inventor 顾忠泽朱纪军韩永昊
Owner SOUTHEAST UNIV