CN111635623B - Night vision sheet and preparation method thereof - Google Patents
Night vision sheet and preparation method thereof Download PDFInfo
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- CN111635623B CN111635623B CN201910156070.9A CN201910156070A CN111635623B CN 111635623 B CN111635623 B CN 111635623B CN 201910156070 A CN201910156070 A CN 201910156070A CN 111635623 B CN111635623 B CN 111635623B
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/06—Elements
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/0091—Complexes with metal-heteroatom-bonds
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
- G02B5/22—Absorbing filters
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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Abstract
The invention belongs to the technical field of night vision piece preparation, and particularly relates to a night vision piece and a preparation method thereof. The night vision sheet comprises a base material, a nano linear metal and an additive, wherein the additive comprises one or a mixture of a plurality of cyanine, phthalocyanine, thiodiene, metal complex, quinone, azo and quinoline. The night vision piece can change the visible spectrum of the LED by doping various materials with different visible light and infrared absorption spectral lines, so that the night vision piece can meet the color coordinate requirement of night vision compatibility requirement, and can absorb the near infrared radiation emitted by the LED light source and generated by the ambient background light, so that the night vision piece can meet the radiance requirement of the night vision compatibility requirement.
Description
Technical Field
The invention belongs to the technical field of night vision chip preparation, and particularly relates to a series of night vision optical filters which have visible light and infrared light absorption functions and can enable an LED light source to meet night vision compatibility requirements, and a preparation method thereof.
Background
This information disclosed in this background of the invention is only for the purpose of increasing an understanding of the general background of the invention and is not necessarily to be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
The night vision compatible technology is a technology which eliminates the infrared radiation which is emitted by a light source system and interferes with the work of a night vision device by a certain method and ensures that a night vision imaging system can work normally. The technology is realized by adding a filter on the surface of a light source. The conventional optical filter includes both absorption type and reflection type. The use of reflective materials has limitations. Conventional absorption filters are made by applying a radiation absorbing material to the surface of glass or other organic material, typically in the order of microns. The method is complex, the coating thickness is difficult to control, the production cost is high, the transmittance is low, although part of the optical filter is provided with the scratch-proof layer, the absorption layer is still easy to damage, and the night vision optical filter is caused to lose efficacy.
At present, conventional light sources of military aircrafts, military ships and individual soldier command systems are modified into LED light sources. The traditional night vision compatible optical filter is suitable for light sources such as halogen lamps, incandescent lamps and the like. Because the spectral structures of LED light sources are very different from those of conventional light sources, conventional night vision compatible filters are no longer suitable for emerging LED light sources. It is therefore necessary to develop a night vision compatible filter suitable for various LED light sources.
Disclosure of Invention
Among night vision compatibility requirements, there are requirements for different light colors such as red night vision, yellow night vision, green night vision, white night vision, etc., so that a single night vision filter cannot enable light sources of various light colors to meet the light color and radiance requirements of the night vision compatibility requirements. Aiming at the problems, the invention aims to provide a night vision piece and a preparation method thereof, and the invention prepares a series of night vision compatible night vision optical filters (hereinafter referred to as night vision pieces) by doping various materials with different visible light and infrared light absorption spectral lines, and the optical filters can be suitable for LED light sources with various light colors, so that the LED light sources meet the requirements of night vision compatibility.
The first purpose of the invention is to provide a night vision film.
The invention also provides a preparation method of the night vision tablet.
The invention also provides a night vision tablet and application of the night vision tablet.
In order to achieve the above purpose, the invention specifically discloses the following technical scheme:
first, the present invention discloses a night vision chip comprising: the nano-scale metal-based composite material comprises a base material, nano-linear metal and an admixture, wherein the admixture comprises one or a mixture of more than one of cyanine, phthalocyanine, thiodiene, metal complex, quinone, azo and quinoline.
The night vision piece can change the visible spectrum of the LED by doping various materials with different visible light and infrared absorption spectral lines, so that the night vision piece can meet the color coordinate requirement of night vision compatibility requirement, and can absorb the near infrared radiation emitted by the LED light source and generated by the ambient background light, so that the night vision piece can meet the radiance requirement of the night vision compatibility requirement.
The addition amount of the nano linear metal and the addition amount of the admixture can be selected according to needs, the invention provides the preferable ranges of the addition amounts of the two raw materials, and experiments prove that: when the addition amounts of the nano linear metal and the admixture are within the following ranges, a better effect can be obtained, wherein:
the addition amount of the nano linear metal is as follows: 0.01-1% of the mass of the matrix material.
The addition amount of the admixture is as follows: 0.1-0.7% of the mass of the matrix material.
Optionally, the material of the base material is a polymer transparent material, for example: polycarbonate (PC), polymethyl methacrylate (PMMA or acryl), and the like.
Optionally, the night vision plate can be a plate-shaped structure, and the thickness of the night vision plate can be adjusted within the range of 0.2mm-5.0 m; in addition, the night vision film can also be a shell with various shapes so as to meet the requirements of different devices on the shapes of the night vision film.
Optionally, the nano-linear metal comprises: nano-linear gold, nano-linear silver, nano-linear palladium, and the like.
Optionally, the cyanine group comprises: and fluorescent fuels such as cy3, cy5 and cy 7.
Optionally, the phthalocyanine comprises: phthalocyanine blue, phthalocyanine green, phthalocyanine red, and the like.
Optionally, the thiodioleyl includes: thiobisstannoic nickel, and the like.
Optionally, the metal complex comprises: turquoise blue GL, acid complex blue GGN.
Optionally, the quinone type comprises: c.i. disperse blue 56, c.i. disperse blue 87, c.i. disperse red 92, and the like.
Optionally, the azo includes: sudan red.
Optionally, the quinolines comprise: Y200S, Y201, etc.
In the night vision piece provided by the invention, the nano linear metal and the doping agent are matched for use, because the GJB1394 standard has regulations on the distance between the color coordinates of various light sources and a point UV (0.131, 0.623), the radiance and the like, and the requirements in the GJB1394 standard cannot be met by the single color of a common night vision-free piece, the distance between the color coordinates of a white light LED light source and the radiance and the like, therefore, the invention utilizes the characteristics of the nano linear metal to absorb the light (for example, 680nm to 950 nm) with a specific peak value in the LED light source, and then absorbs the light with other peak values by the doping agent with different combinations, so that the night vision piece using the LED light source can absorb the near infrared radiation emitted by the LED light source and generated by ambient background light, and meets the requirement on night vision compatibility.
The invention further discloses a preparation method of the night vision tablet, which comprises the following steps:
(1) Melting a base material, adding a nano linear metal, and selecting an admixture according to the type of an LED light source to be matched; or after the base material is melted, firstly selecting the doping agent according to the type of the LED light source to be matched, and then adding the nano linear metal;
(2) And (3) uniformly stirring the mixed materials, then carrying out ultrasonic treatment and heating simultaneously, and carrying out injection molding and forming after the completion.
Alternatively, the ultrasonic treatment and the heating may be performed in an ultrasonic device having a heating function, and the ultrasonic treatment time may be 20 to 50 minutes. The material can be dispersed more uniformly by carrying out ultrasonic treatment and heating simultaneously, the agglomeration phenomenon of the nano linear metal is avoided, and the prepared night vision piece has uniform performance.
Finally, the invention discloses an application of the night vision sheet and the preparation method thereof in the fields of aircraft interior illumination, ship interior illumination, individual night vision combat system and the like. The night vision piece provided by the invention has the characteristics of being suitable for LED light sources with various light colors and enabling the LED light sources to meet the night vision compatibility requirement, so that the night vision piece has good application prospect in the field.
Compared with the prior art, the invention has the beneficial effects that:
(1) According to the invention, through the matching of nano linear metal and the additives such as cyanine, phthalocyanine, thiodiglycene, metal complex, quinone, azo and quinoline, the prepared night vision chip has the capability of changing the visible spectrum of the LED, so that the problem that the LED light source cannot meet the night vision compatibility requirement is well solved.
(2) The night vision piece prepared by the invention can be matched with red, yellow, green and other monochromatic light LED light sources, and can also be matched with white light LED, RGB-LED and other mixed color light sources, and the application range is wide.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.
FIG. 1 is a schematic view showing the construction of a night vision sheet prepared in examples 1 to 8 of the present invention.
Fig. 2 is a spectrum diagram of a night vision chip meeting the requirement of night green a suitable for a monochromatic green LED backlight prepared in example 1 of the present invention.
Fig. 3 is a spectrum diagram of a night vision chip meeting the requirement of night green a suitable for a white LED backlight prepared in example 2 of the present invention.
Fig. 4 is a spectrogram of a night vision plate meeting the requirement of night green B, which is suitable for a monochromatic green LED backlight source and prepared in embodiment 3 of the present invention.
Fig. 5 is a spectrogram of a night vision plate meeting the requirement of night green B suitable for a white LED backlight prepared in example 4 of the present invention.
FIG. 6 is a spectrogram of a night vision plate meeting the requirement of night vision yellow suitable for a monochromatic yellow LED backlight prepared in example 5 of the present invention.
Fig. 7 is a spectrogram of a night vision plate meeting the requirement of night vision yellow suitable for a white LED backlight prepared in example 6 of the present invention.
FIG. 8 is a spectrum of a night vision plate suitable for a monochromatic red LED backlight source and meeting the requirement of night vision red made in example 7 of the present invention.
Fig. 9 is a spectrogram of a night vision plate meeting the night vision white requirement and suitable for a white LED backlight source prepared in example 8 of the present invention.
In the fig. 2 to 9, the X-coordinate represents the wavelength (nm) and the Y-coordinate represents the transmittance.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
As described in the background, the spectral structure of LED light sources is quite different from that of conventional light sources, and therefore conventional night vision compatible filters are no longer suitable for emerging LED light sources. It is therefore necessary to develop a night vision compatible filter suitable for various LED light sources. Therefore, the present invention provides a night vision plate and a method for making the same, and the invention will be further described with reference to the accompanying drawings and the following detailed description.
In the following examples, each type of absorbent is shown as a commercially available product, which corresponds to the admixture of the present invention.
Example 1
A night vision plate (the shape of which is referred to as figure 1) meeting night green A requirements and suitable for a monochromatic green light LED backlight source is prepared by the following steps:
(1) Heating transparent Polycarbonate (PC) master batch to 300 ℃ for melting;
(2) According to the type of the matched LED light source, the transparent master batch is prepared by the following steps: the nano linear gold-doped master batch is prepared by mixing the following raw materials in a mass ratio of 1000:3 adding the master batch of the nano linear gold (absorbing light of 680-780 nm) into the melted PC master batch;
(3) Mixing AB530 type absorbent (belonging to metal complex) (light with absorption peak 530nm, curve part of trough in figure 2) into PC master batch doped with nano-gold to obtain mixture, wherein the addition ratio of the AB530 type absorbent is as follows: AB530 type absorbent: PC master batch =1, mass ratio;
(4) Uniformly stirring the mixture by using a stirrer, then placing the mixture in ultrasonic equipment with a heating function, and carrying out ultrasonic vibration on the mixed material for 30 minutes in a heating state of 320 ℃ to ensure that the material is dispersed more uniformly;
(6) And (3) mounting the injection mold on an injection molding machine, heating the equipment and the mold to 320 ℃, pouring the material subjected to ultrasonic treatment into a charging barrel of the injection molding machine, and finishing the injection molding process.
The compatibility of the night vision plate prepared in the embodiment under the LED light source is tested, and the result is shown in fig. 2.
The GJB1394 standard specifies that the color coordinates of a night green A light source should be less than 0.037 away from a point UV (0.088, 0.543), and the color coordinates of a 520-535nm LED light source of a common night vision film are located at a distance of generally 0.039-0.43, which is not satisfactory.
The GJB1394 standard stipulates that the radiance of a night green A light source is less than 0.17 multiplied by 10 -9 The radiance of the 520-535nm LED light source without the night vision film is generally more than 0.4 multiplied by 10 -9 And does not meet the requirements.
After a night vision film which is prepared by the embodiment and is suitable for a monochromatic green light LED backlight source and meets the requirement of night green A is additionally arranged on a common monochromatic green light LED light source, the distance between a color coordinate and a point UV (0.088, 0.543) is smaller than 0.0365, and the radiance is smaller than 0.15 multiplied by 10 -9 The method completely meets the requirements in the GJB1394 standard, and well solves the compatibility problem of the night vision chip under the LED light source.
Example 2
A night vision sheet (the shape of which is referred to in figure 1) meeting the requirement of night green A and suitable for a monochromatic green light LED backlight source is prepared by the following steps:
(1) Heating transparent Polycarbonate (PC) master batch to 300 ℃ to melt;
(2) According to the type of the matched LED light source, the transparent master batch is prepared by the following steps: the nano linear gold-doped master batch is prepared by mixing the following raw materials in a mass ratio of 1000:7 adding the master batch of nano linear gold (absorbing light of 680-950 nm) into the melted PC master batch;
(3) Mixing AB650 type absorbent (belonging to phthalocyanine group) (absorption peak value 600-680nm light, curve part of trough in figure 3) into PC master batch doped with nano gold to obtain mixture, wherein the addition ratio of AB650 type absorbent is as follows: AB650 type absorbent: PC masterbatch =1.5, mass ratio;
(4) Uniformly stirring the mixture by using a stirrer, then placing the mixture in ultrasonic equipment with a heating function, and carrying out ultrasonic vibration on the mixture for 30 minutes in a heating state at 350 ℃ to ensure that the material is dispersed more uniformly;
(6) And (3) mounting the injection mold on an injection molding machine, heating the equipment and the mold to 350 ℃, pouring the material subjected to ultrasonic treatment into a charging barrel of the injection molding machine, and finishing the injection molding process.
The night vision piece prepared in the embodiment is tested for compatibility under an LED light source, and the result is shown in FIG. 3.
The GJB1394 standard specifies that the color coordinates of a night green A light source should be less than 0.037 away from a point UV (0.088, 0.543), and the color coordinates of a 520-535nm LED light source of a common night vision film are located at a distance of generally 0.039-0.43, which is not satisfactory.
The GJB1394 standard stipulates that the radiance of a nightgreen A light source is less than 0.17 multiplied by 10 -9 The radiance of 520-535nm LED light source without night vision film is generally larger than 0.4X 10 -9 And does not meet the requirements.
After the night vision piece which is prepared by the embodiment and is suitable for the monochromatic green light LED backlight source and meets the requirement of night green A is additionally arranged on the common monochromatic green light LED light source, the distance between the color coordinate and a point UV (0.088, 0.543) is less than 0.0365, and the radiance is less than 0.15 multiplied by 10 -9 The method completely meets the requirements in the GJB1394 standard, and well solves the compatibility problem of the night vision chip under the LED light source.
Example 3
A night vision piece (the shape of which is referred to as figure 1) meeting the requirement of night green B and suitable for a monochromatic green LED backlight source is prepared by the following steps:
(1) Heating transparent Polycarbonate (PC) master batch to 300 ℃ to melt;
(2) According to the type of the matched LED light source, the transparent master batch is prepared by the following steps: the nano linear gold-doped master batch is prepared by mixing the following raw materials in a mass ratio of 1000:7 adding the master batch of nano linear gold (absorbing light of 680-950 nm) into the melted PC master batch;
(3) Mixing AB670 type absorbent (phthalocyanine) (light with absorption peak value of 670nm, light with absorption peak value of 620nm-680 nm) into PC master batch doped with nano gold to obtain mixture, wherein the addition ratio of the AB670 type absorbent is as follows: AB670 type absorbent: PC masterbatch =3, mass ratio;
(4) Uniformly stirring the mixture by using a stirrer, then placing the mixture in ultrasonic equipment with a heating function, and carrying out ultrasonic vibration on the mixed material for 30 minutes in a heating state of 250 ℃ to ensure that the material is dispersed more uniformly;
(6) And (3) mounting the injection mold on an injection molding machine, heating the equipment and the mold to 320 ℃, pouring the material subjected to ultrasonic treatment into a charging barrel of the injection molding machine, and finishing the injection molding process.
The night vision piece prepared in the embodiment is tested for compatibility under the LED light source, and the result is shown in fig. 4.
The GJB1394 standard stipulates that the radiance of a night green B light source is less than 0.17 multiplied by 10 -9 The radiance of 535-545nm LED light source of common non-night vision film is generally more than 0.4X 10 -9 Are not satisfactory.
After the night vision sheet which is prepared by the embodiment and is suitable for the monochromatic green light LED backlight source and meets the requirement of night green B is additionally arranged on the common monochromatic green light LED light source, the radiance is less than 0.15 multiplied by 10 -9 。
Example 4
A night vision piece (the shape of which is shown in figure 1) suitable for a white LED backlight source and meeting the requirement of night green B is prepared by the following steps:
(1) Heating transparent Polycarbonate (PC) master batch to 300 ℃ for melting;
(2) According to the type of the matched LED light source, the transparent master batch is prepared by the following steps: the mass ratio of the master batch doped with the nano linear gold is 1000:6, adding the master batch of the nano linear gold (absorbing light of 680-950 nm) into the melted PC master batch;
(3) Mixing AB675 type absorbent (belonging to quinone type) (light with absorption peak value of 600-680nm, curve part of trough in FIG. 5) into PC master batch doped with nano-gold to obtain mixture, wherein the addition ratio of the AB675 type absorbent is as follows: AB675 type absorbent: PC masterbatch =5.5, mass ratio;
(4) Uniformly stirring the mixture by using a stirrer, then placing the mixture in ultrasonic equipment with a heating function, and carrying out ultrasonic vibration on the mixed material for 30 minutes at the heating state of 300 ℃ to ensure that the material is dispersed more uniformly;
(6) And (3) mounting the injection mold on an injection molding machine, heating the equipment and the mold to 320 ℃, pouring the material subjected to ultrasonic treatment into a charging barrel of the injection molding machine, and finishing the injection molding process.
The night vision piece prepared in the embodiment is tested for compatibility under the LED light source, and the result is shown in fig. 5.
The GJB1394 standard specifies that the color coordinate of a night green B light source should be less than 0.057 away from the point UV (0.131, 0.623), and the color coordinate of a white light LED light source of a common night vision film is generally between 0.13 and 0.2 away and does not meet the requirement.
The GJB1394 standard stipulates that the radiance of a nightgreen B light source should be less than 0.17 x 10 -9 The radiance of a common white light LED light source without a night vision film is generally larger than 1 × 10 -9 And does not meet the requirements.
After the night vision piece which is prepared by the embodiment and is suitable for the white LED backlight source and meets the requirement of night green B is additionally arranged on the common white LED light source, the distance between the color coordinate and a point UV (0.131, 0.623) is less than 0.055, and the radiance is less than 0.15 multiplied by 10 -9 The method completely meets the requirements in the GJB1394 standard, and well solves the compatibility problem of the night vision chip under the LED light source.
Example 5
A night vision piece (the shape of which is referred to as figure 1) suitable for a monochromatic yellow LED backlight source and meeting the requirement of night vision yellow is prepared by the following steps:
(1) Heating transparent Polycarbonate (PC) master batch to 300 ℃ for melting;
(2) According to the type of the matched LED light source, the transparent master batch is prepared by the following steps: the mass ratio of the master batch doped with the nano linear gold is 1000:2, adding a master batch of nano linear gold (absorbing light of 680-780 nm) into the melted PC master batch;
(3) Mixing a Y200S type absorbent (quinolines) (absorbing light of 630-680) into the PC master batch doped with the nanogold to obtain a mixture, wherein the addition ratio of the Y200S type absorbent is as follows: Y200S type absorbent: PC master batch = 1;
(4) Uniformly stirring the mixture by using a stirrer, then placing the mixture in ultrasonic equipment with a heating function, and carrying out ultrasonic vibration on the mixture for 30 minutes at the heating state of 280 ℃ so as to disperse the materials more uniformly;
(6) And (3) mounting the injection mold on an injection molding machine, heating the equipment and the mold to 300 ℃, pouring the material subjected to ultrasonic treatment into a charging barrel of the injection molding machine, and finishing the injection molding process.
The compatibility of the night vision plate prepared in this embodiment under the LED light source is tested, and the result is shown in fig. 6.
The GJB1394 standard stipulates that the radiance of a night vision yellow light source should be less than 1.4 multiplied by 10 -7 The radiance of the 580-590nm LED light source of the common non-night vision film is generally larger than 1.6 multiplied by 10 -7 Are not satisfactory.
After a night vision sheet which is prepared by the embodiment and is suitable for a monochromatic yellow LED backlight source and meets the requirement of night vision yellow is additionally arranged on a common 580-590nmLED light source, the radiance is less than 1.3 multiplied by 10 -7 (ii) a The requirements in the GJB1394 standard are completely met, and the compatibility problem of the night vision chip under the LED light source is well solved.
Example 6
A night vision piece (the shape of which is shown in figure 1) suitable for a white LED backlight source and meeting the requirement of night vision yellow is prepared by the following steps:
(1) Heating transparent Polycarbonate (PC) master batch to 300 ℃ to melt;
(2) According to the type of the matched LED light source, the transparent master batch is prepared by the following steps: the mass ratio of the master batch doped with the nano linear gold is 1000:7 adding the master batch of nano linear gold (absorbing light of 680-950 nm) into the melted PC master batch;
(3) Mixing a Y201 type absorbent (quinolines) (light with an absorption peak value of 600-680 nm) into the PC master batch doped with the nanogold to obtain a mixture, wherein the addition ratio of the Y201 type absorbent is as follows: y201 type absorbent: PC masterbatch =0.9, mass ratio;
(4) Uniformly stirring the mixture by using a stirrer, then placing the mixture in ultrasonic equipment with a heating function, and carrying out ultrasonic vibration on the mixture for 30 minutes in a heating state of 320 ℃ so as to disperse the materials more uniformly;
(6) And (3) mounting the injection mold on an injection molding machine, heating the equipment and the mold to 320 ℃, pouring the material subjected to ultrasonic treatment into a charging barrel of the injection molding machine, and finishing the injection molding process.
The night vision piece prepared in this example was tested for compatibility under LED light source, and the results are shown in fig. 7.
The GJB1394 standard specifies that the color coordinate of a night vision yellow light source should be less than 0.083 away from a point UV (0.274, 0.622), and the color coordinate of a white light LED light source of a common non-night vision film is generally between 0.15 and 0.20 away, which is not satisfactory.
The GJB1394 standard stipulates that the radiance of a night vision yellow light source should be less than 1.4 multiplied by 10 -7 The radiance of a common white light LED light source without a night vision film is generally larger than 1.6 multiplied by 10 -7 And does not meet the requirements.
After the night vision sheet which is prepared by the embodiment and is suitable for the white LED backlight source and meets the requirement of night vision yellow is additionally arranged on the common white LED light source, the distance between the color coordinate and the point UV (0.274, 0.622) is less than 0.08, and the radiance is less than 1.3 multiplied by 10 -7 (ii) a Completely meets the requirements in the GJB1394 standard, and well solves the compatibility problem of the night vision chip under the LED light source.
Example 7
A night vision piece (the shape of which is shown in figure 1) suitable for a white LED backlight source and meeting the requirement of night vision yellow is prepared by the following steps:
(1) Heating transparent Polycarbonate (PC) master batch to 300 ℃ to melt;
(2) According to the type of the matched LED light source, the transparent master batch is prepared by the following steps: the nano linear gold-doped master batch is prepared by mixing the following raw materials in a mass ratio of 1000:1, adding a master batch of nano linear gold (absorbing light of 700-930 nm) into a melted PC master batch;
(3) Mixing R100 type absorbent (quinoid) (absorbing 680 light and forming 380-780nm transmission spectrum as figure 8) into PC master batch doped with nano-gold to obtain mixture, wherein the adding ratio of R100 type absorbent is as follows: r100 type absorbent: PC master batch = 3;
(4) Uniformly stirring the mixture by using a stirrer, then placing the mixture in ultrasonic equipment with a heating function, and carrying out ultrasonic vibration on the mixed material for 30 minutes in a heating state of 320 ℃ to ensure that the material is dispersed more uniformly;
(6) And (3) installing the injection mold on an injection molding machine, heating the equipment and the mold to 320 ℃, and pouring the material subjected to ultrasonic treatment into a charging barrel of the injection molding machine to complete the injection molding process.
The night vision piece prepared in the embodiment is tested for compatibility under the LED light source, and the result is shown in fig. 8.
The GJB1394 standard stipulates that the radiance of a night vision red light source should be less than 1.4 multiplied by 10 -7 The radiance of the LED light source of 600-610nm of the common non-night vision film is generally more than 1.6 multiplied by 10 -7 And does not meet the requirements.
After a night vision piece which is prepared by the embodiment and is suitable for a monochromatic red light LED backlight source and meets the requirement of night vision yellow is additionally arranged on a common 600-610nmLED light source, the radiance is less than 1.3 multiplied by 10 -7 (ii) a Completely meets the requirements in the GJB1394 standard, and well solves the compatibility problem of the night vision chip under the LED light source.
Example 8
A night vision piece (the shape of which is shown in figure 1) suitable for a white LED backlight source and meeting night vision white requirements is prepared by the following steps:
(1) Heating transparent Polycarbonate (PC) master batch to 300 ℃ to melt;
(2) According to the type of the matched LED light source, the transparent master batch is prepared by the following steps: the nano linear gold-doped master batch is prepared by mixing the following raw materials in a mass ratio of 1000:3 adding the master batch of nano linear gold (absorbing light of 680-950 nm) into the melted PC master batch;
(3) Mixing an AB640 type absorbent (phthalocyanine) (light with an absorption peak value of 620-680 nm) into the PC master batch doped with the nanogold to obtain a mixture, wherein the addition ratio of the AB640 type absorbent is as follows: AB640 type absorbent: PC master batch =1, mass ratio;
(4) Uniformly stirring the mixture by using a stirrer, then placing the mixture in ultrasonic equipment with a heating function, and carrying out ultrasonic vibration on the mixture for 30 minutes in a heating state of 320 ℃ so as to disperse the materials more uniformly;
(6) And (3) installing the injection mold on an injection molding machine, heating the equipment and the mold to 320 ℃, and pouring the material subjected to ultrasonic treatment into a charging barrel of the injection molding machine to complete the injection molding process.
The night vision piece prepared in this example was tested for compatibility under LED light source, and the results are shown in fig. 9.
The GJB1394 standard stipulates that the radiance of a night vision yellow light source should be less than 2.2 multiplied by 10 -9 The radiance of the white LED light source without night vision film is generally larger than 2X 10 -8 And does not meet the requirements.
After a night vision film which is prepared by the embodiment and is suitable for a white LED backlight source and meets the night vision white requirement is additionally arranged on a common white LED light source, the radiance is less than 1.9 multiplied by 10 -9 (ii) a Completely meets the requirements in the GJB1394 standard, and well solves the compatibility problem of the night vision chip under the LED light source.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A night vision compatible night vision filter comprising: a matrix material characterized by: further comprising a nano-linear metal and an admixture, the nano-linear metal being selected from the group consisting of: nano linear gold, nano linear silver, nano linear palladium; the admixture comprises one or a mixture of more of cyanine, phthalocyanine, thiodiene, metal complex, quinone, azo and quinoline; the material of the base material is a high-molecular transparent material, and the nano linear metal absorbs 680-950nm light; the doping agent is selected according to the type of the LED light source needing to be matched, so that the distance of the color coordinates of the LED light source with the night vision filter and the radiance meet the requirements in the GJB1394 standard.
2. The night vision compatible night vision filter of claim 1, wherein: the addition amount of the nano linear metal is as follows: 0.01-1% of the mass of the matrix material.
3. The night vision-compatible night vision filter of claim 1, wherein: the addition amount of the admixture is as follows: 0.1-0.7% of the mass of the matrix material.
4. The night vision compatible night vision filter of claim 1, wherein: the high-molecular transparent material is polycarbonate or polymethyl methacrylate.
5. The night vision compatible night vision filter of claim 1, wherein: the night vision filter is of a sheet structure; the thickness of the night vision filter is within the range of 0.2-5.0 m; or the night vision filter is a shell with a set shape.
6. The night vision compatible night vision filter of claim 1, wherein:
the cyanine is selected from: cy3, cy5, cy7;
alternatively, the phthalocyanine is selected from: phthalocyanine blue, phthalocyanine green, phthalocyanine red;
alternatively, the thiodienes are selected from: thiobisstannoic nickel.
7. The night vision compatible night vision filter of claim 1, wherein: the metal complex is selected from: turquoise blue GL and acid complex blue GGN;
alternatively, the quinoid is selected from: c.i. disperse blue 56, c.i. disperse blue 87, and c.i. disperse red 92;
alternatively, the azo is selected from: sudan red;
alternatively, the quinolines are selected from: Y200S, Y201.
8. The method of manufacturing a night vision compatible night vision filter as claimed in any one of claims 1 to 7, wherein: the method comprises the following steps:
melting a base material, adding a nano linear metal, and selecting an admixture according to the type of an LED light source to be matched; and (3) uniformly stirring the mixed materials, simultaneously carrying out ultrasonic treatment and heating, and carrying out injection molding and forming after the ultrasonic treatment is finished.
9. The method of claim 8, wherein: the ultrasound and heating are performed in an ultrasound device having a heating function; the ultrasonic time is 20-50 minutes.
10. Use of the night vision compatible night vision filter according to any one of claims 1 to 7 in aircraft interior lighting, ship interior lighting, individual night vision combat systems.
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| RU2209785C1 (en) * | 2002-01-03 | 2003-08-10 | Займидорога Олег Антонович | Optical glass |
| CN1440997B (en) * | 2002-02-25 | 2011-06-29 | 三菱麻铁里亚尔株式会社 | Compositions containing metal nanorods, coating films, polymer films, optical filters |
| CN102031047B (en) * | 2010-11-17 | 2013-04-10 | 南京工业大学 | Night vision compatible near-infrared absorption film material and preparation method thereof |
| CN103773311B (en) * | 2014-01-15 | 2015-04-15 | 常州大学 | Organic composite near-infrared absorbent and preparation method thereof |
| CN103809231B (en) * | 2014-01-27 | 2016-04-13 | 南京工业大学 | Ultraviolet-near infrared dual-waveband absorption optical filter and preparation method thereof |
| CN108983341A (en) * | 2018-08-31 | 2018-12-11 | 苏州讯能光电科技有限公司 | A kind of wear-resisting anti-dazzle night viewing compatible filter coating and preparation method thereof |
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