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Wavefront corrector and correction method therefor

A technology of wavefront corrector and correction method, which is applied in the direction of instruments, optical components, optics, etc., and can solve problems that have not been applied to adaptive optics technology

Inactive Publication Date: 2015-12-09
LASER FUSION RES CENT CHINA ACAD OF ENG PHYSICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although electrowetting technology has been successfully commercialized in lens imaging, it has not yet been applied to adaptive optics technology. To realize this application, many theoretical and technical problems need to be solved

Method used

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  • Wavefront corrector and correction method therefor
  • Wavefront corrector and correction method therefor
  • Wavefront corrector and correction method therefor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] like figure 1As shown, a wavefront corrector includes a container 1, at least one power supply 6 and at least one electrode 4. The container 1 is arranged as a closed structure, and conductive liquids 3 and The insulating liquid 2 can effectively prevent the liquid surface shape from being affected by external air flow disturbances, etc., and has high control precision. The diameter of the circumscribed circle of the cross section of the container 1 is set to 10-200mm, and its height is set to 5-20mm. The container 1 The cross-sectional size has a large adjustment range, and is suitable for large-aperture high-energy states. At the same time, the wavefront corrector has no requirements on the polarization state of the optics, and has a wide range of applications.

[0047] When the densities of the conductive liquid 3 and the insulating liquid 2 are the same, the contact liquid surface of the two is a spherical surface with constant curvature. When the densities of the c...

Embodiment 2

[0062] Such as figure 1 , image 3 As shown, in this embodiment, the same part as Embodiment 1 will not be described in detail, the difference is:

[0063] The caliber of the container 1 is 100mm, its cross section is square, and its outer wall is evenly provided with 8 electrodes 4, and the circumferential angle corresponding to each electrode 4 is 36°, and the heights of the conductive liquid 3 and the insulating liquid 2 are 5mm, the anti-reflection film is set to optical glass, the conductive liquid 3 is set to sodium chloride aqueous solution, its refractive index is 1.5, and the insulating liquid 2 is set to ether, its refractive index is 1.35, due to the sodium chloride aqueous solution The density of diethyl ether is greater than that of diethyl ether. Therefore, the diethyl ether is set on the upper part of the container 1, and the aqueous sodium chloride solution is set on the lower part of the container 1.

[0064] Apply voltages of 2V, 3.5V, 4V, 2.5V, 4.5V, 6V, 5...

Embodiment 3

[0066] Such as figure 1 , Figure 4 As shown, in this embodiment, the same parts as those in Embodiment 1 will not be repeated, and the difference is:

[0067] The cross-section of the container 1 is circular, and eight electrodes 4 are evenly arranged on its outer wall, and the circumferential angle corresponding to each electrode 4 is 30°. A high-efficiency film, the film is optical glass, the conductive liquid 3 and the insulating liquid 2 have the same density, and the insulating liquid 2 is located above the conductive liquid 3 .

[0068] The incident light enters the insulating liquid 2 through the upper plane of the container 1, is incident into the conductive liquid 3 after being refracted by the insulating liquid 2, and finally passes through the lower plane of the container 1 after being refracted by the conductive liquid 3 The incident light passes through the insulating liquid 2 and the conductive liquid 3 in order to compensate for wavefront distortion.

[0069...

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Abstract

The invention relates to a wavefront corrector and a correction method therefor, and belongs to the technical field of adaptive optical systems. The wavefront corrector comprises a container, at least one power supply and at least one electrode; wherein the container is a closed structure, and conductive fluid and insulating fluid of different refractive indexes are arranged inside the container; the electrode, whose anode is connected with the power supply and cathode is connected with the conductive fluid, is arranged scatteredly at an outer side wall of the container. The wavefront corrector of the invention has the properties of quick response speed, high stability, diversified profile responsive shape, convenient operation, low cost, high control accuracy and adaption to adaptive optical systems.

Description

technical field [0001] The invention belongs to the technical field of adaptive optical systems, and in particular relates to a wavefront corrector and a correction method thereof. Background technique [0002] Wavefront correctors (also known as deformable mirrors), as the key components of adaptive optics systems, have been developed rapidly in recent years. Compared with the traditional solid lens deformable mirror technology approach, the liquid mirror deformable mirror can use the tension of the liquid surface itself to maintain smoothness, thereby solving the inherent problem of medium and high frequency aberrations in the traditional solid lens technology, and is being used more and more. into adaptive optics technology. [0003] Existing liquid mirror deformable mirrors mainly include ferromagnetic liquid-driven type and liquid crystal-driven type. The former uses the electromagnetic force of the energized coil to change the surface shape of the ferromagnetic liquid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B26/06
CPCG02B26/06
Inventor 薛峤胡东霞代万俊王德恩张晓璐张鑫袁强杨英赵军普
Owner LASER FUSION RES CENT CHINA ACAD OF ENG PHYSICS