Preparation method of gel micro lens array

A microlens array and gel technology, which is applied in the field of preparation of gel microlens arrays, can solve the problems of no initial focal length, untunable focal length, fixed and fixed microlens arrays, and achieves easy large-area production and low induced voltage. , the effect of low cost

Inactive Publication Date: 2020-02-25
HEFEI UNIV OF TECH
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Problems solved by technology

The microlens array prepared by this method has no initial focal length, and a certain voltage needs to be applied to obtain the lens effect
However, the use of electric field-induced UV photosensitive adhesive to obtain a microlens array with an initial focal length, its morphology will be fixed after UV curing, and the focal length cannot be adjusted.

Method used

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  • Preparation method of gel micro lens array
  • Preparation method of gel micro lens array
  • Preparation method of gel micro lens array

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Embodiment Construction

[0042] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0043] The present invention utilizes the polymer and plasticizer molecules in the electroactive gel material to migrate to the anode (cathode) and accumulate in the anode under the action of a direct current electric field. (cathode) surface, make the gel surface form the topography that anode area protrudes cathode area depression (cathode area protrudes anode area depression), the gel layer of this specific shape has lens property, and the initial focal length of...

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Abstract

The invention belongs to the technical field of lens preparation, and particularly relates to a preparation method of gel micro lens array. The preparation method of gel micro lens array includes thefollowing steps: S1. preparing a patterned electrode on a substrate; S2. preparing a gel solution; S3. applying a voltage to the patterned electrode; S4. covering the gel solution on the patterned electrode to form the gel micro lens array. The invention forms a gel micro lens array through an electric field-induced gel solution, and the gel micro lens array has an initial focal length and can beelectrically controlled for focusing, thereby solving the problem that the focal length of a traditional electric field-induced micro lens array is not tunable.

Description

technical field [0001] The invention belongs to the technical field of lens preparation, in particular to a method for preparing a gel microlens array. Background technique [0002] The focal length of traditional solid lenses is fixed and immutable. To obtain variable focal length in traditional optical systems, lens groups must be used to change the focal length of the entire optical system by changing the relative distance between different lenses. An adaptive lens is a lens that changes the focal length by changing the external drive (such as temperature, pressure, electric field, etc.) applied to the lens. Adaptive lenses have extremely broad application prospects in the fields of imaging technology, optical communication, optical interconnection, and image processing. Electrodeformable gel is an electrically active transparent gel that can undergo creep deformation under the action of a DC electric field, and is one of the best materials for preparing variable focus l...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B3/00
CPCG02B3/0012
Inventor 徐苗许培文李振彬薛莹莹陈翠芬
Owner HEFEI UNIV OF TECH
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