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Tool for quickly forming radial temperature gradient distribution

A gradient distribution and radial temperature technology, applied in optics, instruments, heat exchange equipment, etc., can solve the problems of not meeting the requirements of imaging quality and poor uniformity of optical film thickness, so as to improve the production process level and control the temperature distribution , Easy to operate and reliable effect

Inactive Publication Date: 2020-08-21
INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The thickness uniformity of the current commercialized optical films in China is very poor, which cannot meet the imaging quality requirements at all.

Method used

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  • Tool for quickly forming radial temperature gradient distribution
  • Tool for quickly forming radial temperature gradient distribution
  • Tool for quickly forming radial temperature gradient distribution

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The top view of tooling 1 is as follows figure 1 As shown, the size of the circular bottom 1 is Φ20mm, and the size of the working platform 3 is Φ430mm. Tooling 1 side view as figure 2 As shown, the height of the circular bottom 1 is 5mm, the shape of the heat transfer body 2 is cylindrical, and the thickness is 15mm, the size of the quartz substrate 5 is Φ430mm*13mm, and the outer surface of the heat transfer body 2 is insulated with a heat insulating foam cotton insulation layer 4 A thin layer of heat-conducting silicone grease 6 is coated between the quartz substrate 5 and the working platform 3 to ensure surface contact. The material of the tooling is 6061 aluminum alloy, the ambient temperature is 25, the temperature of the heat source is 60 °C, and the temperature is kept for one hour to make the tooling and the environment reach thermal equilibrium. Test the surface temperature distribution on the quartz substrate 5, the result is as follows image 3 As shown,...

Embodiment 2

[0026] The top view of tooling 2 is as follows figure 1 As shown, the size of the circular bottom 1 is Φ20mm, and the size of the working platform 3 is Φ430mm. Tooling 2 side view as Figure 4 As shown, the height of the circular bottom 1 is 5mm, the shape of the heat transfer body 2 is V-shaped, and the height is 35mm, the size of the quartz substrate 5 is Φ430mm*13mm, and the outer surface of the heat transfer body 2 is insulated with a thermal insulation foam cotton insulation layer 4 A thin layer of heat-conducting silicone grease 6 is coated between the quartz substrate 5 and the working platform 3 to ensure surface contact. The material of the tooling is 6061 aluminum alloy, the ambient temperature is 25, the temperature of the heat source is 60 °C, and the temperature is kept for one hour to make the tooling and the environment reach thermal equilibrium. Test the surface temperature distribution on the quartz substrate 5, the result is as follows Figure 5 As shown, t...

Embodiment 3

[0028] The top view of tooling 3 is as follows figure 1 As shown, the size of the circular bottom 1 is Φ20mm, and the size of the working platform 3 is Φ430mm. Tooling 2 side view as Figure 6 As shown, the height of the circular bottom 1 is 5mm, the shape of the heat transfer body 2 is bowl-shaped, the height is 35mm, the radius of curvature is 700mm, the size of the quartz substrate 5 is Φ430mm*13mm, and the outer surface of the heat transfer body 2 is made of heat-insulating foam cotton 4 Carry out heat preservation, apply a thin layer of heat-conducting silicone grease 6 between the quartz substrate 5 and the working platform 3 to ensure surface contact, the material of the tooling is 6063 aluminum alloy, the ambient temperature is 25, the temperature of the heat source is 60 °C, and the temperature of the heat source is 60 °C for one hour to make the tooling and the environment Reach thermal balance, test the upper surface temperature distribution of quartz substrate 5, ...

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Abstract

The invention provides a tool for quickly forming radial temperature gradient distribution. The tool comprises a circular bottom part, a heat transfer body, a circular working platform, a heat-insulation layer, a quartz substrate, heat-conducting silicone grease and the like. The horizontal circular bottom part is used for connecting with a heat source for providing constant temperature; the heattransfer body achieves dynamic temperature balance through a heat-conducting characteristic of the heat transfer body and heat exchange between the heat transfer body and an external environment; theheat-insulation layer is adopted on the side face for insulating heat and preserving heat; the temperature endowed for the circular working platform is uniformly distributed in the circumferential direction and distributed in a certain temperature gradient way in the radial direction; and in order to reduce contact thermal resistance, the quartz substrate and the working platform form surface contact through the heat-conducting silicone grease, and the temperature finally endowed for the surface of the quartz substrate is uniformly distributed in the circumferential direction and distributed in a certain temperature gradient way in the radial direction. The tool for quickly forming radial temperature gradient distribution provided by the invention can quickly realize radial temperature continuous gradient distribution of the circular horizontal substrate, and is controllable in temperature distribution and convenient and reliable to operate.

Description

technical field [0001] The invention relates to the technical field of optical film preparation, in particular to a tool for rapidly forming radial temperature gradient distribution. Background technique [0002] Binary thin-film optical elements have the advantages of light weight and easy folding and unfolding. The thickness uniformity of thin-film materials directly affects its wavefront error, which seriously affects the imaging quality and restricts the practical application of thin-film elements in my country. To improve the imaging quality of thin film components, it is necessary to improve the uniformity of film thickness. Foreign countries are currently able to control the thin-film wavefront error within 1 / 4 wavelength, but they impose a strict technical blockade on my country. The thickness uniformity of the current commercialized optical films in China is very poor, which cannot meet the imaging quality requirements at all. High-quality thin film preparation te...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28F21/08G02B5/00
CPCF28F21/084G02B5/00
Inventor 毛丹波毛羽丰范斌杜峻峰
Owner INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI
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