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Artificial compound eye lens with controllable curvature and preparation method thereof

The technology of eye lens and fly eye lens is applied in the field of artificial compound eye lens and its preparation, which can solve the problems of high cost, increase the preparation cost, low efficiency, etc., and achieve the effect of increasing the field of view and improving the quality of edge imaging.

Inactive Publication Date: 2010-09-22
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main defect of these methods is their low efficiency and high cost. The production of each compound eye must go through the same process steps, which greatly increases the production cost.

Method used

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  • Artificial compound eye lens with controllable curvature and preparation method thereof
  • Artificial compound eye lens with controllable curvature and preparation method thereof
  • Artificial compound eye lens with controllable curvature and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Such as Figure 1a As shown, this embodiment includes: a compound eye base and a circular structure fly eye lens, wherein: the compound eye base has a spherical crown base with a diameter of 1 cm and a height of 4 mm, and the fly eye lens is a spherical convex lens with a diameter of 160 microns and a height of 16 microns.

[0031] The present embodiment is prepared through the following steps:

[0032] The first step is to clean the silicon wafer substrate, sputter chromium on the silicon wafer substrate, and make a metal layer with a thickness of 100 angstroms;

[0033] Such as Figure 1b As shown, the second step is to spin-coat photoresist on the surface of the metal layer, and then use a circular compound eye array structure to form a columnar convex structure through photolithography;

[0034] The circular compound eye array has a cylindrical diameter of 150 microns and a height of 18 microns.

[0035] The third step is to place the photoresist-coated silicon wa...

Embodiment 2

[0050] Such as Figure 2a-Figure 2d As shown, this embodiment includes: a compound eye base and a fly eye lens with a hexagonal structure, wherein: the diameter of the compound eye base is a curved base with a step feature of 1.8 cm, and the fly eye lens is a hexagon with a diagonal length of 190 microns and a height of 19 microns shaped convex lens.

[0051] The present embodiment is prepared through the following steps:

[0052] The first step is to clean the silicon wafer substrate, sputter chromium on the silicon wafer substrate, and make a metal layer with a thickness of 100 angstroms;

[0053] The second step is to spin-coat photoresist on the surface of the metal layer, and then use a mask plate with a hexagonal column array structure to form a columnar convex structure through photolithography;

[0054] The hexagonal pillars have a diameter of 180 microns and a height of 21 microns.

[0055] The third step is to place the photoresist-coated silicon wafer substrate i...

Embodiment 3

[0070] Such as Figure 3a-Figure 3d As shown, this embodiment includes: a compound eye base and a fly eye lens with a square structure, wherein: the diameter of the compound eye base is a hollow spherical base with a height of 2 cm and a height of 8 mm, the hollow diameter of which is 1 cm and a height of 3 mm, and the fly eye lens has a side length of 180 Micron, a square convex lens with a height of 20 microns.

[0071] The present embodiment is prepared through the following steps:

[0072] The first step is to clean the silicon wafer substrate, sputter chromium on the silicon wafer substrate, and make a metal layer with a thickness of 100 angstroms;

[0073] The second step is to spin-coat photoresist on the surface of the metal layer, and then use a mask plate with a square compound eye array structure to form a columnar convex structure through photolithography;

[0074] The square columns of the square compound eye array have a diameter of 175 microns and a height of ...

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Abstract

The invention discloses an artificial compound eye lens with controllable curvature and a preparation method thereof, belonging to the technical field of optics microcomponent. The method adopts a polymer to manufacture a die of a lens to be copied, and a double-faced method is adopted to prepare the artificial compound eye lens with controllable curvature by a plane compound eye lens array. The artificial compound eye lens prepared with the method of the invention comprises a substrate and a plurality of small holes on the external surface of the substrate, wherein the small hole is round, hexagonal or square, and the substrate and the compound eye lens are both prepared from polydimethylsiloxane. The artificial compound eye lens of the invention is suitable for various using environments, the small volume ensures that the artificial compound eye lens can directly form an optical imaging system on an image sensor or can replace the original single-aperture lens and is favourable for improving dynamic capture capability and spatial information capture capability.

Description

technical field [0001] The invention relates to a lens in the technical field of micro-optical devices and a preparation method thereof, in particular to an artificial fly eye lens with controllable curvature and a preparation method thereof. Background technique [0002] With the continuous development and mutual integration of optics, mechanics, electronics and other fields, opto-mechanical products are becoming more and more extensive, and the requirements for them are also getting higher and higher. However, the single-aperture optical system cannot meet the requirements of lightness and dexterity due to its volume and weight limitations. Artificial compound eye is an innovative, marginal and cross-cutting frontier research field integrating biology, optics, electronics, information processing, data fusion, automatic control and other disciplines. Compared with the plane artificial compound eye, the curved surface artificial compound eye has the advantages of high imagi...

Claims

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Application Information

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IPC IPC(8): G02B3/10G03F7/00
Inventor 刘景全何庆杨春生芮岳峰李以贵
Owner SHANGHAI JIAO TONG UNIV
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