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Optical filter material of multifunctional protective face mask and preparation method thereof

A technology of protective masks and optical filters, applied in optical filters, chemical instruments and methods, optics, etc., can solve problems such as unsatisfactory and difficult, and achieve the effect of improving the cut-off effect

Inactive Publication Date: 2012-10-03
许昌天和焊接器材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] The filters used in the existing auto-darkening masks are all band-pass filters plated on ordinary (float) white glass. It is very difficult to improve the light sheet by an order of magnitude in the ultraviolet and infrared wave bands, which is far from satisfying the use of some special occasions

Method used

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  • Optical filter material of multifunctional protective face mask and preparation method thereof

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preparation example Construction

[0016] The preparation method of the present invention comprises the steps of:

[0017] Step 1, preparing optical glass, its components and weight percentages are: sodium oxide 16-17%, diboron trioxide 5-6%, cerium oxide 5-6%, neodymium oxide 1.2-1.4%, tin protochloride 2.5% -3%, iron powder 2.3-3%, the balance is silicon dioxide;

[0018] Manually pick out the glass water prepared according to the above components, press it into a plate with a thickness of 1.8-2.2mm with double rollers, put the plate into a furnace with a furnace temperature of 480-520°C for annealing treatment, and then process it according to the specified size Cut out of the furnace, and finally grind and polish;

[0019] Step 2, coating the plate after grinding and polishing, the coating layers are zinc sulfide layer, silver layer, zinc sulfide layer, silver layer, zinc sulfide layer, silver layer, zinc sulfide layer and aluminum oxide layer.

[0020] The thickness of each coating layer in the coating l...

Embodiment 1

[0024] The steps of the preparation method of the present invention are as follows:

[0025] Step 1, prepare optical glass, its composition and percentage by weight are: sodium oxide 16%, diboron trioxide 5%, cerium oxide 5%, neodymium oxide 1.2%, tin protochloride 2.5%, iron powder 2.3%, the remaining The amount is silicon dioxide;

[0026] Manually pick out the glass water prepared according to the above components, press it into a 2mm thick plate with double rollers, put the plate into a furnace with a furnace temperature of 500°C for annealing treatment, and then release it according to the specified size after 24 hours cutting, and finally grinding and polishing;

[0027] Step 2, coating the plate after grinding and polishing, the coating layers are zinc sulfide layer, silver layer, zinc sulfide layer, silver layer, zinc sulfide layer, silver layer, zinc sulfide layer and aluminum oxide layer.

[0028] The thickness of each coating layer in the coating layer is: zinc su...

Embodiment 2

[0032] The steps of the preparation method of the present invention are as follows:

[0033] Step 1, first prepare optical glass, its composition and percentage by weight are: sodium oxide 17%, diboron trioxide 6%, cerium oxide 6%, neodymium oxide 1.4%, tin protochloride 3%, iron powder 3%, The balance is silicon dioxide;

[0034] Manually pick out the glass water prepared according to the above components, press it into a 1.8mm thick plate with double rollers, put the plate into a furnace with a furnace temperature of 480°C for annealing treatment, and after 24 hours, proceed according to the specified size. Cut out of the furnace, and finally grind and polish;

[0035] Step 2, coating the plate after grinding and polishing, the coating layers are zinc sulfide layer, silver layer, zinc sulfide layer, silver layer, zinc sulfide layer, silver layer, zinc sulfide layer and aluminum oxide layer.

[0036] Zinc sulfide layer: 110nm; silver layer: 30nm; zinc sulfide layer: 75nm; s...

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Abstract

The invention discloses a preparation method of an optical filter material of a multifunctional protective face mask. The method comprises the following steps: (1) preparing an optical glass whose ingredient are as follows by weight: 16-17% of sodium oxide, 5-6% of boron trioxide, 5-6% of cerium oxide, 1.2-1.4% of neodymium oxide, 2.5-3% of stannous chloride, 2.3-3% of iron powder, and rest is silica; picking out glass water which is prepared according to the above ingredient, forming a plate with a thickness of 1.8-2.2 mm by pressing of double rollers, placing the plate into a furnace with afurnace temperature of 480-520 DEG C for annealing processing, and performing a cutting process, followed by grinding and polishing treatments; (2) carrying out film plating on the plate after the grinding and polishing processes, wherein plated film layers are a zinc sulfide layer, a silver layer, a zinc sulfide layer, a silver layer, a zinc sulfide layer, a silver layer, a zinc sulfide layer and an alumina layer in order. According to the invention, a special type optical glass is employed, after film plating, ultraviolet and infrared wave bands cut-off effects of the prepared optical glassare substantially improved.

Description

technical field [0001] The invention relates to an optical filter material, in particular to an optical filter material in a multifunctional protective mask and a preparation method thereof. Background technique [0002] The filters used in the existing auto-darkening masks are all band-pass filters plated on ordinary (float) white glass. It is very difficult to improve the light sheet by an order of magnitude in the ultraviolet and infrared wave bands, which is far from enough for some special occasions. Contents of the invention [0003] The object of the present invention is to provide a filter material and preparation method in a multi-functional protective mask. Special optical glass is used, and the cut-off effects of the ultraviolet and infrared bands of the prepared optical glass are significantly improved after coating. [0004] The present invention adopts following technical scheme: [0005] A preparation method of a filter material in a multifunctional protec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B5/20G02B1/10G02B1/00B32B9/04B32B15/00B32B17/00
Inventor 余祥和有敬和新敬
Owner 许昌天和焊接器材有限公司
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