CN102485946A - Target material used for rearview mirror, rearview mirror and its manufacture method - Google Patents
Target material used for rearview mirror, rearview mirror and its manufacture method Download PDFInfo
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- CN102485946A CN102485946A CN2010105789398A CN201010578939A CN102485946A CN 102485946 A CN102485946 A CN 102485946A CN 2010105789398 A CN2010105789398 A CN 2010105789398A CN 201010578939 A CN201010578939 A CN 201010578939A CN 102485946 A CN102485946 A CN 102485946A
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- rear vision
- vision mirror
- reflectance coating
- copper alloy
- aluminum
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Abstract
The invention discloses a rearview mirror. A reflective film is formed on the surface of the rearview mirror, the reflective film contains an aluminum copper alloy. The invention also provides a target material and a method for manufacturing the rearview mirror. The rearview mirror of the invention possesses the advantages that the reflective film contains the aluminum copper alloy, the transmission and/or reflection performance are good. The invention also discloses a target material used for preparing the reflective film of the rearview mirror and a method for preparing the reflector.
Description
Technical field
The present invention relates to automobile manufacturing field, relate to a kind of rear vision mirror especially, also relate to the target and the method for preparing rear vision mirror of preparation rear vision mirror reflectance coating.
Background technology
Along with the development of society, rear vision mirror is as the important safety annex of automobile, and its performance requriements is also increasingly high.According to statistics, the traffic hazard that causes owing to the rear vision mirror defective in China accounts for about 30% of all traffic hazards sums; In the U.S., this ratio accounts for 20%; On motorway, this ratio is then up to 70%.In the defective of these rear vision mirrors, reflective dazzling harm is maximum, and it directly causes the of short duration yctalopia of driver, increases stopping distance, and the long-duration driving fatiguability etc.
CN101241195 discloses a kind of rear view mirror lens, is made up of at the aluminium or the chromium plated film of sheet glass one side blue glass sheet and plating.Its method of manufacture is to utilize float glass process to produce the blue glass plate, on sheet glass, cuts out the rear view mirror lens glass substrate, by the technology plated aluminum film or the chromium film of common vacuum plating, promptly gets product of the present invention again.
Yet aluminized eyeglass long-term observation is observed to cause easily eyes is caused fatigue, and Corrosion Protection is poor, is easy to generate oxidation.The chromium plating minute surface is bigger to the specific absorption of light, and reflectivity is low, and it is dim that minute surface seems.
Thereby the rear vision mirror of prior art still remains to be improved.
Summary of the invention
The object of the invention is intended to solve at least one of technical problem that exists in the prior art.For this reason, the present invention need provide a kind of rear vision mirror, and this rear vision mirror has the transmission and/or the reflecting properties of excellent corrosion resisting performance, excellence.
According to an aspect of the present invention, a kind of rear vision mirror is provided, has been formed with reflectance coating on the minute surface of said rear vision mirror, according to atomic percent, said reflectance coating contains at least 90% aluminum-copper alloy.This rear vision mirror has excellent transmission and/or reflecting properties.
According to a further aspect in the invention, a kind of target that is used to prepare rear vision mirror is provided also, according to atomic percent, said target contains at least 90% aluminum-copper alloy.Utilize this target can be used for through magnetron sputtering method, on the eyeglass of rear vision mirror, form the reflectance coating that contains aluminum-copper alloy, the rear vision mirror that is obtained is realized the transmission and/or the reflecting properties of excellent corrosion resisting performance, excellence.
According to another aspect of the invention, the invention provides a kind of method that is used to prepare rear vision mirror, it comprises and utilizes aforementioned target, through magnetron sputtering method, on the minute surface of rear vision mirror, forms reflectance coating.Formed reflectance coating contains aluminum-copper alloy, can realize excellent transmission, reflecting properties.
Additional aspect of the present invention and advantage part in the following description provide, and part will become obviously from the following description, or recognize through practice of the present invention.
Embodiment
Describe embodiments of the invention below in detail.Described embodiment is exemplary, only is used to explain the present invention, and can not be interpreted as limitation of the present invention.
Disclosing of hereinafter provides many various embodiment or example to be used for realizing different embodiment of the present invention.Of the present invention open in order to simplify, hereinafter specific embodiment or example are described.Certainly, they only are example, and purpose does not lie in restriction the present invention.In addition, various special processes and the examples of material that the invention provides, those of ordinary skills can recognize the use of the applicability and/or the other materials of other technologies.
According to an aspect of the present invention, a kind of rear vision mirror of novelty is provided mainly, on the minute surface of this rear vision mirror, has been formed with reflectance coating, according to atomic percent, said reflectance coating contains at least 90% aluminum-copper alloy.
Rear vision mirror according to the above embodiment of the present invention; Owing on the minute surface of rear vision mirror, form the reflectance coating that one deck contains aluminum-copper alloy; Thereby compare with existing eyeglass, have excellent corrosion resisting performance, better reflection and/or transmission performance according to the rear vision mirror of the embodiment of the invention.The reflectivity of rear vision mirror in visible-range according to the embodiment of the invention can reach more than 70%, and transsmissivity can reach more than 20%.Thereby, can prevent dazzle effectively according to the rear vision mirror of the embodiment of the invention.The contriver finds that if the content of aluminum-copper alloy in reflectance coating is lower than 90%, then the above-mentioned performance with reflectance coating will detract to some extent.Composition in the reflectance coating except that aluminum-copper alloy does not receive special qualification, as long as can not cause remarkable infringement for the above-mentioned character of reflectance coating.
Need to prove; Broad understanding should be done in the term " rear vision mirror " that uses in the present invention; It can be any sight glass that can be used in the Real Time Observation traffic; Its example includes but not limited to the left and right sides rear vision mirror of car interior-exterior rear vision mirror and motorcycle, power truck, and the fixed turning mirror that is arranged on road corner.According to a concrete example of the present invention, said rear vision mirror is an automobile rearview mirror.Term " dazzle " is meant in the visual field because unfavorable Luminance Distribution, or has extreme brightness contrast, thus cause vision uncomfortable with the visual phenomenon that reduces the object visibility.Experiment showed, that the stopping distance of free from glare is 42 meters with the average stopping distance of 97 kilometers/hour velocity test, the stopping distance that dazzle is arranged is almost the twice of free from glare stopping distance then up to 80 meters.Thereby, according to the rear vision mirror of the embodiment of the invention for avoiding owing to have significant effect for the traffic hazard that the dazzle defective of visor causes.
According to one embodiment of present invention, said reflectance coating is made up of the metallic aluminium copper alloy.That is, except metallic element aluminium and copper, do not contain other compositions in the reflectance coating.So, can further improve the performance of rear vision mirror of the present invention, particularly, have better reflection and transmission performance.The ratio of metallic aluminium and copper does not receive special restriction in the reflectance coating, but in some embodiments of the invention, in atomic percent; The content of copper is 3-15%, preferred 3-8%, most preferably 5%; All the other all are aluminium, can further improve the performance of rear vision mirror of the present invention like this.Term " atomic percent " is meant that a kind of atoms of elements number accounts for the per-cent of total atom number in the alloy, i.e. molar percentage.
According to the rear vision mirror of the embodiment of the invention, the thickness of its reflectance coating does not receive special restriction.In some embodiments of the invention, the thickness of reflectance coating is 10-30nm, if the thickness of reflectance coating is lower than 10nm, then its reflectivity is understood variation, if the thickness of transmitting film is higher than 30nm, then its transsmissivity can variation.The thickness of preferred reflectance coating is 10-20nm, can further improve the performance of rear vision mirror of the present invention, realizes gratifying reflectivity and transsmissivity.
In one embodiment of the invention, adopt magnetron sputtering method on the minute surface of rear vision mirror, to form the reflectance coating that contains aluminum-copper alloy.Because the reflectance coating that forms through this method is a non-crystal structure; Thereby compare with existing rear vision mirror (for example aluminium plating film, chromium plating film); Has better corrosion resistance nature; Especially can tolerate the for example corrosion of PC solution (carbonic allyl ester solution) of electrochromic solutions, its corrosion resistance nature is superior to aluminium plating film, can compare favourably with the chromium plating film.Thereby, can under the effect of extra electric field, make the rear vision mirror reflectance coating that stable, reversible colour-change take place, promptly show as the reversible change of color and transparency in appearance.In addition, in magnetron sputtering process, can easily control the thickness of reflectance coating through the parameter of control magnetron sputtering.
According to another aspect of the present invention, a kind of target that is used for forming on the minute surface of rear vision mirror through magnetron sputtering method reflectance coating is provided.According to atomic percent, this target contains at least 90% aluminum-copper alloy, thereby utilizes this target on the minute surface of rear vision mirror, to form the reflectance coating that contains xaloy through magnetron sputtering method, promptly above described rear vision mirror, its advantage repeats no more at this.In the magnetron sputtering treating processes,, can easily control the composition of the rear vision mirror reflectance coating that forms through changing the composition of target.Particularly, in one embodiment of the invention, in the aluminum-copper alloy of target, according to atomic percent, the content of copper is 3-15%.So, can on the surface of rear vision mirror, form the aluminum-copper alloy reflectance coating that copper content is 3-15% (according to the atomic percent meter).In one example, copper content is 3-8%.So, can on the minute surface of rear vision mirror, form the aluminum-copper alloy reflectance coating that copper content is 3-8% (according to the atomic percent meter).
According to one embodiment of present invention, a kind of target is provided, it is made up of aluminum-copper alloy, and promptly this target does not contain any other composition except aluminium and copper.So, can on the minute surface of rear vision mirror, form the aluminum-copper alloy reflectance coating that only contains aluminium and copper, further improve the optical property of prepared rear vision mirror, for example have better reflection and transmission performance.Because the aluminum-copper alloy reflectance coating that forms through magnetron sputtering method is a non-crystal structure; Thereby compare with existing rear vision mirror (for example aluminium plating film, chromium plating film); Have better corrosion resistance nature, especially can tolerate the for example corrosion of PC solution (carbonic allyl ester solution) of electrochromic solutions.Thereby, can be convenient to the modification processing of later stage to rear vision mirror.
According to another aspect of the invention, the present invention also provides a kind of method for preparing rear vision mirror.In one embodiment of the invention, this method comprises utilizes the aforesaid target of the present invention, through the magnetron sputtering method of routine, on the minute surface of rear vision mirror, forms reflectance coating.Utilize this method can obtain aforementioned backsight eyeglass according to the embodiment of the invention.In addition, utilize this method, can pass through to change the composition of target, and control the composition of the rear vision mirror reflectance coating that forms easily.In the present invention, can adopt any magnetically controlled sputter method as known in the art, can adopt existing any magnetic control sputtering device, as long as adopt the aforesaid target that contains aluminum-copper alloy.
Through concrete embodiment, present invention is described, need to prove below, and embodiment only is illustrative, and the scope that does not limit the present invention in any way.
Embodiment
1, the preparation of target
Mixed according to 1: 9 and 1: 19 (in atomic percent) is even respectively with copper and aluminium; And 1100～1300 ℃ of temperature; Sintering is 2～5 hours under the condition of pressure 100～120MPa,, be formed for the aluminum-copper alloy target 1 and aluminum-copper alloy target 2 of magnetron sputtering after the cooling.
2, magnetron sputtering forms reflectance coating
Utilize magnetic control sputtering device medium frequency magnetron sputtering coating equipment; The aluminum-copper alloy target 1 and aluminum-copper alloy target 2 that adopt the front to obtain; On the minute surface of rear vision mirror, forming thickness is the aluminum-copper alloy reflectance coating of 12nm, obtains rear vision mirror 1 and rear vision mirror 2, detects through utilizing sem and energy spectrometer SEM-EDS; Copper content (in atomic percent) is respectively 10% and 5% in rear vision mirror 1 and rear vision mirror 2 reflectance coatings, and all the other are metallic aluminium.
3, rear vision mirror Performance Detection
Rear vision mirror 1 and rear vision mirror 2 to being formed with reflectance coating utilize SP color difference meter detection of reflected rate, utilize the UV spectrophotometer measuring transsmissivity and carry out the solution corrosion of anti-PC performance test, and rear vision mirror 1 all reaches following effect with rear vision mirror 2 as a result:
Maximum reflectivity reaches 71～72%, and the maximum reflection spectral wavelength is 500nm;
Maximum transmission rate reaches 22～23%, and the max transmissive spectral wavelength is 550nm.
In addition, have that employed electrochromic solutions PC solution (carbonic allyl ester solution) all has very strong corrosion resistance nature in rear view mirror lens 1 and the 2 pairs of electrochromic process of this reflectance coating.Thereby, can be made into the reversible change rear vision mirror of color and transparency with the rear vision mirror 1 that forms reflectance coating and 2 through electrochromic process.
Carry out the rear vision mirror 1 and 2 of electrochromic process with electrochromic solutions PC solution.When energising 1.2～1.5V, through the rear vision mirror 1 and 2 of electrochromic process, reflectivity is by being reduced to more than 70% below 10%; After the outage, its reflectivity returns to more than 70%.
Although illustrated and described embodiments of the invention; For those of ordinary skill in the art; Be appreciated that under the situation that does not break away from principle of the present invention and spirit and can carry out multiple variation, modification, replacement and modification that scope of the present invention is accompanying claims and be equal to and limit to these embodiment.
Claims (10)
1. a rear vision mirror is characterized in that, is formed with reflectance coating on the minute surface of said rear vision mirror, and according to atomic percent, said reflectance coating contains at least 90% aluminum-copper alloy.
2. rear vision mirror according to claim 1 is characterized in that said reflectance coating is made up of aluminum-copper alloy.
3. rear vision mirror according to claim 1 is characterized in that, in the said aluminum-copper alloy, according to atomic percent, the content of copper is 3-15%.
4. rear vision mirror according to claim 3 is characterized in that, the content of said copper is 3-8%.
5. rear vision mirror according to claim 1 is characterized in that, the thickness of said reflectance coating is 10-30nm.
6. a target that is used to prepare the rear vision mirror reflectance coating is characterized in that, according to atomic percent, said target contains at least 90% aluminum-copper alloy.
7. target according to claim 6 is characterized in that, in the said aluminum-copper alloy, according to atomic percent, the content of copper is 3-15%.
8. target according to claim 7 is characterized in that, the content of said copper is 3-8%.
9. target according to claim 6 is characterized in that said target is made up of aluminum-copper alloy.
10. method for preparing each said rear vision mirror of claim 1～5 may further comprise the steps:
Utilize the described target of claim 6～9 on the minute surface of rear vision mirror, to form reflectance coating through magnetron sputtering method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105789398A CN102485946A (en) | 2010-12-02 | 2010-12-02 | Target material used for rearview mirror, rearview mirror and its manufacture method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105789398A CN102485946A (en) | 2010-12-02 | 2010-12-02 | Target material used for rearview mirror, rearview mirror and its manufacture method |
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| Publication Number | Publication Date |
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| CN102485946A true CN102485946A (en) | 2012-06-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010105789398A Pending CN102485946A (en) | 2010-12-02 | 2010-12-02 | Target material used for rearview mirror, rearview mirror and its manufacture method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106967948A (en) * | 2017-04-26 | 2017-07-21 | 福建福光光电科技有限公司 | A kind of optical glass film of high definition anti-scratch waterproof and preparation method thereof |
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| JP3853213B2 (en) * | 1999-07-19 | 2006-12-06 | セントル ステファノア ドゥ ルシェルシェ メカニク イドロメカニク エ フロットマン | Aluminum-titanium alloy with high specular reflectivity, reflective coating comprising the alloy, and mirrors and components including the coating |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106967948A (en) * | 2017-04-26 | 2017-07-21 | 福建福光光电科技有限公司 | A kind of optical glass film of high definition anti-scratch waterproof and preparation method thereof |
| CN106967948B (en) * | 2017-04-26 | 2019-07-30 | 福建福光光电科技有限公司 | A kind of optical glass film of high definition anti-scratch waterproof and preparation method thereof |
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Application publication date: 20120606 |