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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: 2009-06-03
SOUTHEAST UNIV
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  • Summary
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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

Method used

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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 embodiments of the micro-lens lens group with adjustable focal length and field of view of the present invention are as follows: 1) Micro-injection method is used to form a micro-fluid micro-cavity in PDMS or other transparent films. The specific manufacturing process is as follows: Figure 4 As shown, the planar layout of the obtained microcavity is as Figure 5 As shown; 2) After the bonding of PDMS adopts general plasma treatment (oxygen at 100---1500W, microwave plasma treatment device with a vacuum of about 500 Torr for 15-60 minutes) pressure bonding (pressure about 1000 Pa); 3) Inject liquid or water into the cavity with a syringe and seal the injection port with the PDMS film treated with oxygen plasma (the maximum pressure of the cavity is about 10 Psi); 4) Apply voltage (0-450V) to the piezoelectric film (PVDF) outside the PDMS microcavity , Or apply driving voltage (0-450V) to the original ring piezoelectric ceramics and axial piezoelectric ceramics (PZT) to c...

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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 that combines a microfluidic control device, elastic body micro deformation control, and surface gradient processing technology, and belongs to micro manufacturing, surface modification technology and The technical field where micro-optics technology intersects. Background of the invention [0002] With the increasing demand for portable camera devices, the production and assembly of miniature lens modules for various mobile phones, notebooks, and monitors has formed a huge specialty industry of electronics manufacturing. The global annual production capacity of mobile phones is close to 900 million, of which about 560 million are camera phones, so the demand for camera lenses of various sizes is also very amazing. At present, the miniature lens on the market mainly adopts small glass or plastic to obtain the small lens through the inje...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B3/14G02B3/12
Inventor 顾忠泽朱纪军韩永昊
Owner SOUTHEAST UNIV
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