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Cambered artificial compound eye and preparation method thereof

An artificial and compound eye technology, which is applied in the field of curved surface artificial compound eyes and its preparation, can solve the problems of numerous process steps, large size change of the original compound eye lens, high equipment requirements and unfavorable preparation of curved surface compound eye optical system, etc., to increase the field of view , Improve the effect of edge imaging quality

Inactive Publication Date: 2011-08-31
SHANGHAI JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The curved surface compound eye manufacturing process mentioned in this article uses PDMS material (polydimethylsiloxane) as the initial compound eye array pattern replication material. Since the film prepared by PDMS itself is thicker than a single fly eye lens, extrusion deformation occurs during the deformation process. The size change of the original fly-eye lens is relatively large, and the process steps used in this paper are various, and the high requirements for equipment are not conducive to the preparation of curved-surface fly-eye optical systems by units that only have planar engraving conditions.

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  • Cambered artificial compound eye and preparation method thereof
  • Cambered artificial compound eye and preparation method thereof
  • Cambered artificial compound eye and preparation method thereof

Examples

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Effect test

Embodiment 1

[0035] Such as Figure 1a and Figure 1d As shown, this embodiment includes: a fly eye base and a circular structure fly eye lens, wherein:

[0036] Such as Figure 1b As shown, the fly eye lens is a spherical convex lens with a diameter of 160 microns and a height of 16 microns.

[0037] Such as Figure 1c As shown, the diameter of the compound eye base is 2 cm;

[0038] The present embodiment is prepared through the following steps:

[0039] The first step is to clean the silicon wafer substrate, and sputter chromium on the silicon wafer substrate to make a thickness of 100? metal layer.

[0040] In the second step, the photoresist is spin-coated on the surface of the metal layer, and then a columnar convex structure is formed through photolithography; the mask plate is a circular compound eye array structure.

[0041] The cylinder has a diameter of 150 microns and a height of 18 microns.

[0042] The third step is to place the photoresist-coated silicon wafer substra...

Embodiment 2

[0051] Such as Figure 2a and Figure 2d As shown, this embodiment includes: a fly-eye base and a fly-eye lens with a hexagonal structure, wherein:

[0052] Such as Figure 2b As shown, the fly eye lens is a hexagonal convex lens with a diagonal length of 190 microns and a height of 19 microns;

[0053] Such as Figure 2c As shown, the diameter of the base of the compound eye is 1.8 cm.

[0054] The present embodiment is prepared through the following steps:

[0055] The first step is to clean the silicon wafer substrate, and sputter chromium on the silicon wafer substrate to make a thickness of 100? metal layer.

[0056]In the second step, the photoresist is spin-coated on the surface of the metal layer, and then a columnar convex structure is formed through photolithography; the mask plate is a hexagonal compound eye array structure.

[0057] The hexagonal pillars are 180 microns in diameter and 21 microns in height.

[0058] The third step is to place the photoresis...

Embodiment 3

[0067] Such as Figure 3a and Figure 3d As shown, this embodiment includes: a fly-eye base and a fly-eye lens with a square structure, wherein:

[0068] Such as Figure 3b As shown, the fly eye lens is a square convex lens with a side length of 180 microns and a height of 20 microns;

[0069] Such as Figure 3c As shown, the diameter of the base of the compound eye is 3 cm.

[0070] The present embodiment is prepared through the following steps:

[0071] The first step is to clean the silicon wafer substrate, and sputter chromium on the silicon wafer substrate to make a thickness of 100? metal layer.

[0072] In the second step, the photoresist is spin-coated on the surface of the metal layer, and then a columnar convex structure is formed through photolithography; the mask plate is a hexagonal compound eye array structure.

[0073] The square pillars are 175 microns in diameter and 22 microns in height.

[0074] The third step is to place the photoresist-coated silic...

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Abstract

The invention relates to a cambered artificial compound eye and a preparation method thereof, belonging to the field of optical bionic technologies. The cambered artificial compound eye comprises a base and a plurality of compound eye lenses, wherein the plurality of compound eye lenses are positioned on the outer surface of the base; each compound eye lens is in a circular or hexagonal structure, the diameter or the length of the diagonal of the compound eye lens is 80 to 250 micrometers, and the height is 8 to 25 micrometers. The invention enables a changed camber to be matched with the traditional CCD sensor, thereby realizing the functions of a cambered artificial compound eye pick-up lens and being beneficial to enhancing the vision angle and the dynamic capture capacity of the cambered artificial compound eye pick-up lens.

Description

technical field [0001] The invention relates to an artificial compound eye in the field of optical bionic technology and a preparation method thereof, in particular to a curved artificial compound eye and a preparation method thereof. Background technique [0002] With the expansion of the application field of optical imaging systems, people's requirements for them are also increasing, such as optical sensors for smart weapons, robot vision and micro-aircraft, etc., expect optical systems to be lighter in weight, smaller in size, larger in field of view, and more sensitive to Moving objects are more sensitive etc. However, the widely used single-aperture optical system cannot meet the above requirements at the same time. Inspired by the compound eyes of insects, the field of view is divided into several parts by multiple small eyes, and then the final complete image is formed by joining each image. This system has a relatively low resolution, but it has light weight and sma...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B3/10G03F7/00
Inventor 刘景全何庆芮岳峰杨春生李以贵
Owner SHANGHAI JIAOTONG UNIV