Preparation method of dynamic graph capable of moving in certain direction based on microlens array and micro-graphic array

A technology of micro-lens array and micro-graphics, which is applied in the direction of lens, optics, instruments, etc., can solve the problem of single and limited movement of patterns, and achieve the effect of enhancing the visual experience of human eyes

Inactive Publication Date: 2018-11-16
INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI
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  • Abstract
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  • Application Information

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Problems solved by technology

However, many moiré patterns are limited to fringe patterns formed by gratings. The design is simple, and the pattern movement method is single, which is greatly limited in practical application.
[0004] In order to further develop moiré technology, microlens arrays and micro-pattern arrays have appeared in the

Method used

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  • Preparation method of dynamic graph capable of moving in certain direction based on microlens array and micro-graphic array
  • Preparation method of dynamic graph capable of moving in certain direction based on microlens array and micro-graphic array
  • Preparation method of dynamic graph capable of moving in certain direction based on microlens array and micro-graphic array

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[0017] The present invention will be further described below in conjunction with the drawings and specific embodiments.

[0018] In this embodiment, the dot array pattern and the "A" array pattern are designed and prepared, and they are glued to obtain a microstructure with orthogonal motion of the two patterns, as shown in the attached file. figure 1 Shown. The specific implementation is as follows:

[0019] (1) Design and preparation of micro lens array

[0020] First, according to the moiré cycle formula:

[0021]

[0022] Determine the period of the dynamic pattern; where T is the period of the dynamic pattern, D is the period of the micro lens array, d is the period of the micro pattern array, θ is the angle between the micro pattern array and the micro lens array, here the period of the micro lens array is selected as 50 μm , As attached figure 2 Shown. Then determine that the sagittal height of the microlens is 5μm, and then the radius of curvature of the microlens can be ob...

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Abstract

The invention discloses a preparation method of a dynamic graph capable of moving in a certain direction based on a microlens array and a micro-graphic array. The preparation method comprises the steps of: (1) designing a layer of microlens array, wherein the design content comprises that an arrangement manner of the microlens array is designed to be rectangular arrangement, selected microlenses are square aperture microlenses, and vector height of the microlenses and a cycle size of the microlens array are determined; (2) designing a layer of micro-graphic array, the specific content comprises image design of micro-graphics, design of an array cycle, and design of an included angle between the micro-graphic array and the microlens array; (3) selecting a microstructure carrier, wherein theselection is implemented by selecting a plastic film of suitable thickness as the carrier of the dynamic graph; (4) and compositing the microstructures, namely overlapping the microlens array and themicro-graphic array in a mould pressing or bonding manner, so as to complete the design of the overall microstructure. The preparation method has unique visual effect, and can achieve the effect of making the designed graph to move in a certain direction.

Description

technical field [0001] The invention relates to the technical field of microstructure dynamic display, in particular to a method for preparing dynamic graphics based on a microlens array and a micrographic array that can move along a certain direction. The dynamic graphics obtained by the method have obvious effects and can be seen Multiple graphics move in different directions with sharp contrast, and this structure can be used to increase the attractiveness of commodities or to prevent counterfeiting of commodities. Background technique [0002] Due to its small size, light weight, and easy integration, the microlens array can realize many functions that cannot be realized by traditional optical components. With the development of microprocessing technology, microlens arrays have been used in optical information processing, optical computing, optical data transmission and other fields. There are many ways to make microlens arrays, and the processing technology of microlen...

Claims

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Application Information

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IPC IPC(8): G02B3/00G09F3/02G09F19/12
CPCG02B3/0006G09F3/02G09F19/12
Inventor 黄鹏何传王董小春范斌
Owner INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI
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