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Magnetofluid deformable mirror device

A deformable mirror and magnetic fluid technology, applied in optical components, optics, instruments, etc., can solve the problems of non-linear response of mirror surface, increase the deformation amplitude of mirror surface response, etc., and achieve the effect of easy expansion, low cost and good application prospect.

Inactive Publication Date: 2013-08-07
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art, and to provide a magnetic fluid deformable mirror device, in which a larger vertical magnetic field with better uniformity is superimposed on the magnetic field generated by the miniature electromagnetic coil in the traditional magnetic fluid deformable mirror device , which effectively solves the problem of the nonlinear response of the traditional magnetic fluid deformable mirror, linearizes the response of the magnetic fluid deformable mirror, and significantly increases the deformation amplitude of the mirror response under the condition of a certain control input current

Method used

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  • Magnetofluid deformable mirror device

Examples

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Embodiment 1

[0028] In this embodiment, see figure 1 and figure 2 , A magnetic flow device device, including the basic mirror system and mirror deformation driving system, specifically: put the iron magnetic fluid 201 in the container 204, and then pour the metal -like liquid reflective membrane material on the iron magnetic fluid 201.Forms a metal -like liquid reflective membrane 202 floating on the iron magnetic fluid 201 liquid surface, and the basic mirror system that constitutes a magnetic flow deformation mirror; set the micro -electromagnetic coil group 203 below the container 204, the micro -electromagnetic coil group 203 is connected to the wire 205 to connect the connectionEntering the driver circuit, the micro -electromagnetic coil group 203 is also connected to the ground with another wire 206 to form a mirror deformation driving system that constitutes a magnetic flow deformation mirror, so that the iron magnetic fluid 201 is under the basic electromagnetic field; it is also set o...

Embodiment 2

[0038] The example of this embodiment is:

[0039] In this embodiment, see Figure 4, Compare the mirror deformation response of the above -mentioned Example One Magnetic Flint Mirror Device with the mirror deformation amplitude of the mirror deformation response of the traditional magnetic flow deformation mirror with the current curve of the input miniature electromagnetic coil group.Whether the mirror deformation response of the fluid transformer device has linear characteristics.

[0040] Example One Magic Flow Transformers Mirror Device Mirror Response Linear Professional Verification Method Specific Implementation Step is:

[0041] 1) Detect and record a miniature electromagnetic coil of the traditional magnetic flow deformation mirror separately into the current of the deformation amplitude characteristic curve of the corresponding position of the mirror surface;

[0042] 2) Detect and record the Micro -electromagnetic coil corresponding to the micro -electromagnetic coil co...

Embodiment 3

[0046] The example of this embodiment is:

[0047] In this embodiment, see Figure 5 , Adopt an Example One Magnetic Flutter Transformer Device to verify the specific implementation steps of the mirror response of the implementation of the mirror response of the magnetic flow mirror device.

[0048] 1) Select the two adjacent miniature electromagnetic coils in the mirror deformation driving system of the Magnetic Flint Mirror Device in any Magnetic Flow Transformer Mirror device at will, which are marked with 'a' and 'b', respectively.Location as an observation point C;

[0049] 2) To the mirror deformation drive system of the embodiment one magnetic flow mirror device, the micro -electromagnetic coil marked with ‘A’ separated by the current signal of the current signal 1, detect and record the deformation amplitude characteristic curve of the observation point C;

[0050] 3) To the mirror deformation drive system of the embodiments one magnetic fluid transformer device, the micro ...

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Abstract

The invention discloses a magnetofluid deformable mirror device. Ferromagnetic fluid is contained in a container, liquid reflecting film material is poured on the ferromagnetic fluid, a metal-like liquid reflecting film forms and floats on the surface of the ferromagnetic fluid, and a basic mirror system of a magnetofluid deformable mirror is formed. A miniature electromagnetic coil assembly is disposed below the container and is connected to a current drive circuit through a wire, and a mirror deformation drive system of the magnetofluid deformable mirror is formed and the ferromagnetic fluid is kept below basic electromagnetic field. A Helmholtz electromagnetic coil is disposed outside the container and applies additional electromagnetic field, perpendicular to lines of magnetic force of the basic electromagnetic field, to the ferromagnetic fluid, and the additional electromagnetic field is evenly superposed to the basic electromagnetic field. The invention further discloses a production method of the magnetofluid deformable mirror device. The great and high-uniformity perpendicular magnetic field is superposed so as to allow the magnetofluid deformable mirror to respond to linearization under the condition of same control input current, and mirror response deformation amplitude is increased evidently.

Description

Technical field [0001] The present invention involves a deformation mirror system and its preparation methods, especially the adaptive optical transformer system and its preparation methods, which are used in technical fields such as high -definition imaging, laser plastic surgery and laser communication. Background technique [0002] Adaptive optical technology uses a deformal mirror to school the frontal aberration of the light in real time, which has been increasingly applied in the fields of high -clear imaging, laser plastic surgery and laser communication.Most of today's deformation mirrors are solid, with shortcomings such as small deformation, high manufacturing costs, and difficulty expanding.With the development of nano -magnetic flow (Magnetic Fluid) technology, people have recently proposed a liquid transformer scheme with magnetic flow as a carrier.It has the advantages of large deformation amplitude, low manufacturing costs, and easy expansion.However, this conventi...

Claims

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Application Information

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IPC IPC(8): G02B26/06
Inventor 吴智政袁帅
Owner SHANGHAI UNIV
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