CN1274873C - Improved anti-dazzle optical device - Google Patents

Improved anti-dazzle optical device Download PDF

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Publication number
CN1274873C
CN1274873C CN01801786.XA CN01801786A CN1274873C CN 1274873 C CN1274873 C CN 1274873C CN 01801786 A CN01801786 A CN 01801786A CN 1274873 C CN1274873 C CN 1274873C
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China
Prior art keywords
finished product
coating
transmissivity
matrix
wavelength
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Expired - Fee Related
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CN01801786.XA
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Chinese (zh)
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CN1383461A (en
Inventor
迪普·辛格·查布拉
帕里那·克里希南·拉奥
拜平·德夫·夏尔马
苏德·库马尔·古普特
达拉姆博·辛格·多德
维伦德·辛格
桑贾伊·夏尔马
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Lektratek Instrumentation Pty Ltd
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Lektratek Instrumentation Pty Ltd
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Publication of CN1383461A publication Critical patent/CN1383461A/en
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Abstract

The present invention relates to a method for depositing and absorbing materials on a plastic and glass substrate. In the method, an oblique angle of 5 DEG to 30 DEG is used for vacuum coating; an evaporator source uses a mask so as to prepare gradually changing film materials, and a preparation method of gradually changing density absorbing films. The film absorbs incident light intensity on the film in a nonuniform mode so glare light is reduced; the present invention can be used as an anti-glare optical device for protecting eyes.

Description

A kind of improved anti-dazzle optics and preparation method thereof
Technical field
The present invention relates to a kind of method that deposits absorbing material on plastic/glass matrix, this method adopts 5 °～30 ° inclination angle vacuum coated, and uses mask with preparation graded films material on evaporation source.More specifically, the present invention relates to a kind of preparation method of graded density absorbing film, the mode of this film by non-homogeneous absorbs the light intensity of incident on it and reduces dazzle, can be used as the anti-dazzle optics of protecting eyes.
Background technology
When driving at night, owing to head-on sail the irradiates light of front lamp of vehicle to enter officer's eyes, excessive irradiates light enters eyes can make coreclisis, sight line is pitch-dark and accidents caused in face of causing the officer, therefore so night, driving variable on motorway got difficultly, needed to use the nighttime driving optical filtering.And UV that contains in the irradiates light and IR light, can make eyes easily suffer from cataract and other diseases.Therefore it is necessary adopting a kind of device to eliminate excessive irradiates light.
During nighttime driving, the radiative wavelength of the headlight of the progressive vehicle of relative direction is 320～400nm and 750～1400nm.A large amount of traffic accidents has taken place owing to it can make the officer lose judgement at night.The flash of light of frequently dazzling the eyes not only makes drives difficulty, and harms one's eyes.Form cataract in the lens and damaged eyesight owing to the effect of UV-light makes, and because secular IR photo-thermal effect also can cause retinal damage.
For reducing the dazzling effect that causes by progressive vehicle, made multiple plastic goggles.Taiwan M/s Proview Optical Corporation has made a kind of nighttime driving eye-protection glasses, has used yellow plastic, and its spectrum as shown in Figure 1.Its transmission counting rate meter such as table 2 signal.Know this eye-protection glasses by inference from its spectrum following shortcoming arranged:
1, this eye-protection glasses has reduced the transmission of 300～540nm wavelength region on whole surface, has therefore also influenced the observation to left side road.
2, have when surpassing 550～750nm wavelength region light transmission of 70% when this eye-protection glasses, it does not stop dazzle to enter eyes from the windshield glass right side fully.
3, because the selection in the visible region sees through, as the absorption in the blue area, thereby this eye-protection glasses can change the personnel that blue clothes are worn in the blueness influence identification of target compound.
Another kind is by the manufacturing of St.Martin sun glasses, the eyepiece of New Delhi M/s Thukral Optics distribution, this eyepiece is claimed and be can be used to radioprotective, can filter the UV and the IR radiation of graphoscope and television screen, also can be used for nighttime driving to prevent dizzy spot simultaneously.But any curve of spectrum or technical specification is not provided in the data of this product, can be used as the eye-protection glasses of nighttime driving to prove it.
Goal of the invention
Main purpose of the present invention provides a kind of manufacture method that is used as the graded density absorbing film of anti-dazzle optics.
Another object of the present invention provides a kind of method that deposits the absorbing film material on plastic/glass matrix, and this method adopts inclination angle vacuum coated on inclination matrix of 5 °～30 °, and uses mask on evaporation source.
The manufacture method of the anti-dazzle optics of protection automobile driver eyes when a further object of the present invention provides a kind of nighttime driving.
Another purpose of the present invention provides a kind of automobile driver eyes that prevent and is subjected to the manufacture method of 320～400nm and the anti-dazzle device of 750～1400nm wavelength light radiating.
A further object of the invention is to prevent from that effect owing to UV-light from making to form cataract in the lens and cause inpairment of vision, and because secular IR optical radiation heat effect causes retinal damage.
Summary of the invention
The present invention relates to a kind of method that deposits absorbing material on plastic/glass matrix, this method adopts 5 °～30 ° inclination angle vacuum coated, and uses mask with preparation graded films material on evaporation source.More specifically, the present invention relates to a kind of preparation method of graded density absorbing film, the mode of this film by non-homogeneous absorbs the light intensity of incident on it and reduces dazzle, can be used as the anti-dazzle optics of protecting eyes.
Detailed Description Of The Invention
The invention provides a kind of manufacture method that is used as the coated substrate of the anti-dazzle optical filtering of motor vehicle (but being not restricted to this), described method comprises: the residuite of being made by glass or synthetic materials is provided, in the position that keeps with respect to 5 ° of evaporation sources～30 ° of inclination angles, one side coating graded density absorbing film material in matrix, between the absorbing material depositional stage, shelter evaporation source, and, obtained anti-dazzle optics like this with antireflection (AR) material coated substrate two sides.
In a preferred embodiment of the present invention, determine the thickness of first coating according to the transmissivity of graded density absorbing material.
In another one embodiment of the present invention, control the deposition of first coating on matrix to obtain following transmissivity:
Distance with RHS Transmissivity % when 550nm
50nm 45～50
100nm 30～35
200nm 50～60
300nm 75～80
In another embodiment of the present invention, evaporation source is a helical tungsten filament.
In another embodiment of the present invention, keeping 2 * 10 -51 * 10 -6Under the pressure of mb, in the vacuum coated device, evaporate.
In another one embodiment of the present invention, absorbing material is selected from down group: Inconel(nickel alloys), rhodium, palladium, nichrome, chromium and composition thereof.
In another embodiment of the present invention, the AR material is selected group down: magnesium fluoride, silicon oxide and composition thereof.
In another one embodiment of the present invention, synthetic materials is a polycarbonate plastic.
In an embodiment of the invention, the coating absorbing material after, vacuum chamber is got back to normal pressure, with respect to the matrix that the evaporation source horizontal positioned has applied, vacuum chamber is evacuated down to identical vacuum tightness then, like this AR material by coating by vaporization on the matrix two sides.
The present invention also provides the manufacture method of the improved anti-dazzle optics of a kind of motor vehicle, described method comprises: the residuite of being made by glass or synthetic materials is provided, in the position that keeps with respect to 5 ° of evaporation sources～30 ° of inclination angles, one side coating graded density absorbing film material in matrix, between the absorbing material depositional stage, shelter evaporation source, and, obtained anti-dazzle optics like this with antireflection (AR) material coated substrate two sides.
In a preferred embodiment of the present invention, determine the thickness of first coating according to the transmissivity of graded density absorbing material.
In another one embodiment of the present invention, control the deposition of first coating on matrix to obtain following transmissivity:
Distance with RHS Transmissivity % when 550nm
50nm 45～50
100nm 30～35
200nm 50～60
300nm 75～80
In another embodiment of the present invention, evaporation source is a tungsten helix.
In another embodiment of the present invention, keeping 2 * 10 -5～1 * 10 -6Under the pressure of mb, in the vacuum coated device, evaporate.
In another one embodiment of the present invention, absorbing material is selected from down group: Inconel(nickel alloys), rhodium, palladium, nichrome, chromium and composition thereof.
In another embodiment of the present invention, the AR material is selected group down: magnesium fluoride, silicon oxide.
In another one embodiment of the present invention, synthetic materials is a polycarbonate plastic.
In an embodiment of the invention, the coating absorbing material after, vacuum chamber is got back to normal pressure, with respect to the matrix that the evaporation source horizontal positioned has applied, vacuum chamber is evacuated down to identical vacuum tightness then, like this AR material by coating by vaporization on the matrix two sides.
The present invention also provides the anti-dazzle optical filtering of a kind of motor vehicle (but being not restricted to this) to improve the coating finished product, described finished product comprise: by the matrix of transparent material manufacturing, simultaneously apply graded density at it and absorb the material film, described gradual change absorbing film places the position with respect to 5 ° of evaporation sources～30 ° of inclination angles, and at matrix two sides coating AR material.
In a preferred embodiment of the present invention, determine the thickness of first coating according to the transmissivity of graded density absorbing film.
In another one embodiment of the present invention, the thickness of first coating that obtains on matrix should have following transmissivity:
Distance with RHS Transmissivity % when 550nm
50nm 45～50
100nm 30～35
200nm 50～60
300nm 75～80
In another embodiment of the present invention, evaporation source is a helical tungsten filament.
In another embodiment of the present invention, keeping 2 * 10 -5～1 * 10 -6Under the pressure of mb, in the vacuum coated device, evaporate.
In another one embodiment of the present invention, absorbing material is selected from down group: Inconel(nickel alloys), rhodium, palladium, nichrome, chromium and composition thereof.
In another embodiment of the present invention, the AR material is selected group down: magnesium fluoride, silicon oxide.
In another one embodiment of the present invention, synthetic materials is a polycarbonate plastic.
In yet another embodiment of the present invention, from pilot's line of vision, the right hand side of device (RHS) has stopped dazzle, and slackened the radiation of UV zone 320～400nm light and IR district 750～1400nm light, do not influence the observation to road simultaneously from the center of optical filtering and left-hand side (LHS).
In yet another embodiment of the present invention, described finished product can protect driver's eyes and avoid the 320～400nm that produced by the headlight of progressive vehicle and the radiation of 750～1400nm wavelength light, because making, the effect of UV-light forms cataract to prevent in the lens, cause inpairment of vision at last, and prevent because IR optical radiation heat effect causes retinal damage at last.
In yet another embodiment of the present invention, the intermediate transmission rate of optical light filter is at visible region.
In yet another embodiment of the present invention, described finished product do not change the color of target compound.
In yet another embodiment of the present invention, described finished product can use at night, and can be installed on the windshield glass of officer front in the motor vehicle, it comprises by vacuum coated is deposited on the glass/plastic matrix graded density absorbing film, and at the two sides of matrix coating AR material, regulating mechanism is provided on windshield glass, this device can be adjusted to and identical position, officer's eye plane, and the device that can be fixed in motor-driven roof when not in use is provided, with moving of the operation of obstruction free bearing circle and officer's head.
In yet another embodiment of the present invention, these finished product have following feature:
A) size: 300 * 150 * 2～3mm.
B) transmissivity of 550nm: the length direction along device changes continuously.
C) see through the light wavelength scope:
320nm: less than 10%
400～1400nm: intermediate value; The intermediate value scope is 550nm numerical value ± 10%.
D) position of minimum and maximum transmissivity:
Distance with RHS Transmissivity % when 550nm
50nm 45～50
100nm 30～35
200nm 50～60
300nm 75～80
These finished product are installed on the windshield glass of officer front.The officer can use this device when nighttime driving, when progressive vehicle for before avoiding road accident and using during the light irradiation road surface, can protect his/her eye and avoid dazzle to stimulate (excessive visible radiation) and ultraviolet region wavelength be the radiation of 320～400nm light and the radiation of infrared region wavelength 750～1400nm light.It is difficult that frequent dazzle not only makes driving variable get, and harm one's eyes.When nighttime driving, this device is turned on the windshield glass that comes to the same level attitude of driver's eyes,, be fixed to again on the top of vehicle when time spent not by a device.
Description of drawings
In Figure of description,
Fig. 1 represents the spectrogram of the yellow plastic that Taiwan M/s Proview Optical Corporation makes.
Fig. 2 represents anti-dazzle optics of the present invention.
Fig. 3 represents the gradient ramp of device of the present invention.
Fig. 4 represents the spectral transmission spectrogram of device of the present invention.
Below, advance one one and describe the present invention in detail, therefore can not think limitation of the scope of the invention by setting forth embodiments of the invention.
Embodiment 1
The invention provides a kind of improved anti-dazzle optics that when nighttime driving, uses, it can be installed on the windshield glass of officer front in the motor vehicle, comprising by vacuum coated is deposited on the glass/plastic matrix graded density absorbing film, and at matrix two sides coating antireflection AR material, regulating mechanism is provided on windshield glass, this device can be adjusted to and officer's eye plane same position, and the device that can be fixed in motor-driven roof when not in use is provided, with moving of the operation of obstruction free bearing circle and officer's head.
The specification of optical filtering is:
Matrix: opticglass, polycarbonate plastic.
Size: 300 * 150 * 2～3mm, this size makes in its frame that is installed in physical construction just being fit to and is installed in the car.
Coating: glass matrix: applying the gradual change absorbing film again behind the coating AR film on the one side,
And another side only applies the AR film.
Plastics substrate: applying the gradual change absorbing film again behind the coating AR film on the one side,
And bonding with the polycarbonate plastic sheet, and another side only applies the AR film.
Coating material: the material that is used as the intermediate transmission rate of gradual change coating usually has
Inconel(nickel alloys), rhodium, palladium, nichrome, chromium, for the AR coating,
Use magnesium fluoride, silicon oxide.
These are standard materials, and their characteristic can be at all material hands
Find in the volume.
Spectral signature:
The transmissivity of 550nm: the length direction along optical filtering changes continuously.
The position of minimum and maximum transmissivity:
With the distance of the RHS transmissivity % when the 550nm
50nm 40
100nm 35
300nm 75
See through the light wavelength scope:
320～400nm: less than 10%
400～1400nm: intermediate value; The intermediate value scope is 550nm numerical value ± 10%.
Embodiment 2: the calculating of progressive thickness
In the design of film gradually changeable, considered to be mapped to the distance between distribution of light intensity on the perspex, two vehicles and the distance of optical filtering and eyes rotation center from progressive vehicle.About this point, obtained data necessary by carrying out necessary test.According to transmissivity, can obtain preparing the progressive thickness of the required film of graded density absorbing film from the light intensity distributions data.Table 3 has provided required thickness distribution.
Embodiment 3: test method
Glass/plastic matrix after suitably cleaning, is positioned in the vacuum coated device with obliquity with respect to evaporation source.The pitch angle can change between 5 °～30 °.Helical tungsten filament is as the evaporation source of absorbing material, and mask places appropriate location, tungsten filament top; Subsequently vacuum chamber is extracted into high vacuum.Be higher than 2 * 10 reaching -5After the vacuum tightness of mb, make the material evaporation, on matrix, obtained the gradual change absorbing film by in tungsten filament, feeding electric current.By in vacuum chamber, suitably placing matrix, the AR film is deposited to the two sides of matrix subsequently.Figure 3 shows that the two sides does not apply the graded profile of the experimental film of AR film.Obtain distributed data by measuring optical filtering transmissivity of 550nm when the different positions.As seen from the figure, apart from RHS 100nm apart from the time absorb the strongest, this be since light (dazzle) intensity in this point maximum, so its absorption reaches maximum, and the officer is imperceptible.
Fig. 2 represents to be installed on the coated substrate on the adjustable mechanical device, and it can be fit to be installed in the car.This device has one to be turned to optical filtering on the windshield and to leave the regulating mechanism of driver's seat.Fig. 2 has clearly illustrated the various devices that can be installed in the Motor vehicles and the parts of anti-dazzle device.By a suitable coupling device (2), anti-dazzle device (1) can be fixed in roof in face of the officer or any on the suitable member of driver's seat front.This coupling device can be the configuration of a nut bolt.Can be fixed in coupling device (2) around the rod (3) that horizontal plane rotates.There is the fixedly device of antireflection plate at the two ends of rod (3).Stationary installation can make panel at the vertical plane internal rotation, and can move up and down this panel.This panel is coated with the anti-reflection material as optical filtering (5).
The thickness of coating depends on the transmissivity of graded density absorbing material.With reference to figure 3, wherein the variation of transmissivity is between 35%～75%.
Transmissivity in control coating between depositional stage makes the following transmissivity of acquisition on matrix.
Distance with RHS Transmissivity % when 550nm
50nm 40～50
100nm 30～35
200nm 50～60
300nm 75～80
Embodiment 4: the environmental protection that optical filtering is carried out and other test
1, hardness test:Employing standard No.Mil-C-675A method, use (the summer laboratories of U.S. testing laboratory in summer, USA) coating hardness tester is measured, this method is under 2.5 pounds power effect, it is moving to carry out 20 1 inch complete long wipings on the surface with the eraser that meets the MIL-E-12397 standard, and does not have the visible scratch on the surface.The sample of this coating has passed through this test, does not find scratch.
2, bond test:This sample has passed through test and has not found peeling phenomenon.According to the method for MIL standard MIL-F-48616, apply component bond test.In this test, used 1/2 inch the glassine paper that meets L-T-90I type standard.Exert pressure so that it covers coated surfaces to adhesive tape, then promptly to remove with the rectangular direction of coated surfaces.Check that coated surfaces has or not any peeling off after removing adhesive tape.
3, weather and environmental testing:
A) heat-resisting test: the sample of coating can keep 3 hours in 65 ℃ environment.
B) heat-resisting wet test: 40 ℃, during relative humidity 95%, sample can keep 3 circulations in 24 hours.
C) salt water resistance spray testing: sample can keep 24 hours under identical environment after 2 hours saline mixture spraying.
After above-mentioned envrionment test is carried out, with bonding, the hardness and the light transmission performance of the method assess sample of visual inspection.
Find to damage in visual inspection, it has passed through the test of hardness, bonding experiment.
With Perkin-Elmer spectrometer measurement spectral-transmission favtor.The transmissivity of sample does not have obvious variation.
The device that temporarily provides is installed on the windshield that uses vehicle, on urban road (one or two-way track) and motorway, has carried out night just testing, obtained challenging result with the person.On-line performance test result referring to table 1.Further the test of work, technology and the use aspect of assembling completed device is also carried out on plastics substrate.
Table 1: on-line testing report
Date at interval By distance (Km) List/two-way traffic (Km) Without a licence bright road road (Km) Speed (Km/hr) Officer/age Observations
22/9/2000 7:00～7:30 afternoon 25 6/19 2 30～50 Amar Chand 58 Dazzle significantly reduces, and the whole visual field is bright
26/9/2000 6:30～7:30 afternoon 40 10/30 10 30～50 Dilibagh Singh 38 Dazzle significantly reduces, and the whole visual field is bright
27/9/2000 40 25/15 25 30～70 Amrik Singh 37 Free from glare, the whole visual field is good
Table 2: the transmissivity numerical value of the nighttime driving plastic goggles of making by Taiwan M/s Proview Optical Corporation.
Wavelength Transmissivity numerical value Wavelength Transmissivity numerical value
300 0.0 310 0.0
320 0.0 330 0.0
340 0.0 350 0.0
360 0.0 370 0.0
380 0.0 390 0.0
400 0.0 410 2.2
420 6.8 430 6.8
440 5.4 450 5.1
460 5.5 470 5.7
480 7.1 490 11.1
500 16.2 510 21.2
520 29.5 530 44.0
540 59.8 550 70.0
560 75.0 570 77.3
580 78.4 590 79.2
600 79.8 610 80.5
620 81.1 630 81.4
640 81.6 650 81.9
660 82.2 670 82.7
680 83.2 690 83.6
700 83.9 710 84.5
720 85.1 730 85.4
740 86.2 750 87.2
760 87.6 770 88.4
780 88.7
Main advantage of the present invention:
1, from driver's sight line, the right-hand side of device has stopped dazzle, and has slackened the light of UV district wavelength 320～400nm and the light of IR district wavelength 750～1400nm, does not affect simultaneously from the center of optical filtering and left-hand side the observation of road.
2, it can protect driver's eyes and avoids 320～400nm of being produced by the headlight of progressive vehicle and the radiation of 750～1400nm wavelength light, because making, the effect of ultraviolet light forms cataract to prevent in the crystalline lens, cause at last the eyesight infringement, and because IR light radiation fuel factor causes the retina infringement at last.
3, do not change the color of target thing in the middle transmission rate of visible light district (Fig. 4) optical light filter.

Claims (33)

1. the manufacture method of a coated substrate, it can be not limited to as the motor vehicle anti-glare optical filtering, described method comprises: the residuite of being made by glass or synthetic materials is provided, in the position that keeps with respect to 5 ° of evaporation sources～30 ° of inclination angles, one side coating graded density absorbing film material in matrix, between the absorbing material depositional stage, shelter evaporation source, and, obtained anti-dazzle optics like this with anti-reflection material coated substrate two sides.
2. method according to claim 1 wherein determines the thickness of first coating according to the transmissivity of graded density absorbing material.
3. method according to claim 1, wherein control the deposition of first coating on matrix to obtain following transmissivity: Distance with RHS Transmissivity % when 550nm 50nm 45～50 100nm 30～35 200nm 50～60 300nm 75～80
。
4. method according to claim 1, wherein evaporation source is a helical tungsten filament.
5. method is according to claim 1 wherein keeping 2 * 10 -5～1 * 10 -6Under the pressure of mb, in the vacuum coated device, evaporate.
6. method according to claim 1, wherein absorbing material is selected from down group: Inconel(nickel alloys), rhodium, palladium, nichrome, chromium and composition thereof.
7. method according to claim 1, wherein the AR material is selected from magnesium fluoride and silicon oxide.
8. method according to claim 1, wherein synthetic materials is a polycarbonate plastic.
9. method according to claim 1, wherein behind the coating absorbing material, vacuum chamber is got back to normal pressure, with respect to the matrix that the evaporation source horizontal positioned has applied, vacuum chamber is evacuated down to identical vacuum tightness then, like this AR material by coating by vaporization on the matrix two sides.
10. method according to claim 1, wherein coated substrate is the anti-dazzle optics of improvement of motor vehicle.
11., wherein determine the thickness of first coating according to the transmissivity of graded density absorbing material as method as described in the claim 10.
12., wherein control the deposition of first coating on matrix to obtain following transmissivity as method as described in the claim 10: Distance with RHS Transmissivity % when 550nm 50nm 45～50 100nm 30～35 200nm 50～60 300nm 75～80
。
13. as method as described in the claim 10, wherein evaporation source is a helical tungsten filament.
14., wherein keeping 2 * 10 as method as described in the claim 10 -5～1 * 10 -6Under the pressure of mb, in the vacuum coated device, evaporate.
15. as method as described in the claim 10, wherein absorbing material is selected from down group: Inconel(nickel alloys), rhodium, palladium, nichrome, chromium and composition thereof.
16. as method as described in the claim 10, wherein the AR material is selected from magnesium fluoride and silicon oxide.
17. as method as described in the claim 10, wherein synthetic materials is a polycarbonate plastic.
18. as method as described in the claim 10, wherein behind the coating absorbing material, vacuum chamber is got back to normal pressure, with respect to the matrix that the evaporation source horizontal positioned has applied, vacuum chamber is evacuated down to identical vacuum tightness then, like this AR material by coating by vaporization on the matrix two sides.
19. one kind can be used for but is not limited to the improvement coating finished product of the anti-dazzle optical filtering of Motor vehicles, described coating finished product comprise: the residuite of being made by glass or synthetic materials, there is graded density to absorb the material film coating at the one mask, described gradual change absorbing film places the position with respect to 5 ° of evaporation sources～30 ° of inclination angles, and also applies one or more anti-reflection materials on the matrix two sides.
20., wherein determine the thickness of first coating according to the transmissivity of graded density absorbing film as finished product as described in the claim 19.
21. as finished product as described in the claim 19, the thickness of first coating that wherein obtains on matrix should have following transmissivity: Distance with RHS Transmissivity % when 550nm 50nm 45～50 100nm 30～35 200nm 50～60 300nm 75～80
。
22. as finished product as described in the claim 19, wherein when the wavelength region of 320～400nm, described finished product transmission is less than 10%, when the wavelength region of 400～1400nm, the intermediate value scope is 550nm wavelength numerical value ± 10%.
23. as finished product as described in the claim 19, wherein evaporation source is a helical tungsten filament.
24., wherein keeping 2 * 10 as finished product as described in the claim 19 -5～1 * 10 -6Under the pressure of mb, in the vacuum coated device, evaporate.
25. as finished product as described in the claim 19, wherein absorbing material is selected from down group: Inconel(nickel alloys), rhodium, palladium, nichrome, chromium and composition thereof.
26. as finished product as described in the claim 19, wherein the AR material is selected from magnesium fluoride and silicon oxide.
27. as finished product as described in the claim 19, wherein synthetic materials is a polycarbonate plastic.
28. as finished product as described in the claim 19, wherein from pilot's line of vision, the right hand side of finished product has stopped dazzle, and having slackened the light of UV zone wavelength 320～400nm and the light of IR district wavelength 750～1400nm, the while does not influence from the center of optical filtering and left-hand side the observation of road.
29. as finished product as described in the claim 19, wherein said finished product can protect driver's eyes and avoid the 320～400nm that produced by the headlight of progressive vehicle and the radiation of 750～1400nm wavelength light, because making, the effect of UV-light forms cataract to prevent in the lens, the inpairment of vision that causes at last, and prevent because IR optical radiation heat effect causes retinal damage at last.
30. as finished product as described in the claim 19, the intermediate transmission rate of wherein improving the coating finished product is at visible region.
31. as finished product as described in the claim 19, wherein said finished product do not change the color of target compound.
32. as finished product as described in the claim 19, wherein said finished product can use at night, and can be installed on the interior officer of the motor vehicle windshield glass in front, it comprises by vacuum coated is deposited on the glass/plastic matrix graded density absorbing film, and at the two sides of matrix coating anti-reflection material, regulating mechanism is provided on windshield glass, these finished product can be adjusted to and identical position, officer's eye plane, and the device that can be fixed in motor-driven roof when not in use is provided, with moving of the operation of obstruction free bearing circle and officer's head.
33. as finished product as described in the claim 19, wherein these finished product have following feature:
A) size: 300 * 150 * 2～3mm;
B) transmissivity of 550nm: the length direction along device changes continuously;
E) see through the light wavelength scope:
320nm: less than 10%
400～1400nm: intermediate value; The intermediate value scope is 550nm numerical value ± 10%;
F) position of minimum and maximum transmissivity: Distance with RHS Transmissivity % when 550nm 50nm 40 100nm 35 300nm 75
。
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