CN1868950A - Glass lens semifinished product and its preparation method - Google Patents
Glass lens semifinished product and its preparation method Download PDFInfo
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- CN1868950A CN1868950A CN 200510034863 CN200510034863A CN1868950A CN 1868950 A CN1868950 A CN 1868950A CN 200510034863 CN200510034863 CN 200510034863 CN 200510034863 A CN200510034863 A CN 200510034863A CN 1868950 A CN1868950 A CN 1868950A
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- semifinished product
- glass
- glass lens
- lens semifinished
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Abstract
A prefabricated glass lens is composed of a raw glass lens and a layer of protecting film prepared from easily soluble organic material. Its preparing process is also disclosed.
Description
[technical field]
The present invention relates to a kind of glass lens semifinished product and preparation method thereof.
[background technology]
Along with high-tech products such as digital camera popularizing on market, optical glass lens processing industry has in recent years also obtained fast development.Cleaning operation is the important ring in the optical glass lens processing process.
Glass mirror can be divided into spheric glass and aspherical lens by appearance, so-called aspheric surface, and general reference is not orbicular spheroid.The curvature of spheric glass is constant, and the curvature of aspherical lens is designed to predetermined variable, so, light converges at difference on the optical axis by spheric glass, form aberration, and light can converge at same point on the optical axis by aspherical lens, can eliminate aberration preferably.Aberration causes the wavefront loss, influences coupling efficiency etc., so the design aspherical lens is to eliminate one of necessary means of aberration.Because aspherical lens can be eliminated aberration preferably, with high coupling efficiency transmission luminous energy, so the development of aspherical lens correlation technique is very fast, and is widely used in digital camera and camera cell phone.
The conventional eyeglass complete processing that adopts of man of industry opticglass source mill is roughly as follows at present: core-cleaning-plated film-cleaning is decided in chunk glass-cleaning-mold pressing-grinding.Wherein, decide core and claim again to ask core or edging, be meant for the radius that obtains stipulating and core precision and the operation of selecting for use.This operation is carried out in deciding the core machine, and its effect is that the edge with the glass mirror blank grinds to proofread and correct the optics accuracy of its central point, causes opticerror in the module in order to avoid install to behind the plated film.For increasing the smoothness of its grinding, can continue to spray machining oil (claim edging oil again, ask core oil) on glass mirror blank surface simultaneously in grinding.
For glass mirror, decide core, the filming process after cleaning is very strict to the requirement of eyeglass cleanliness factor, the matting of therefore deciding behind the core is particularly important.But in the manufacturing process for cleaning after deciding core; principal pollutant are machining oil, impression of the hand and dust etc.; because glass mirror is surface exposure before deciding core, decide core after regular meeting take place the cutting wet goods pollute the glass mirror that contacted on the situation of lower peripheral surface and both side surface.And in process of lapping, it is too much that abrasive and the glass granules that grind to produce adhere to the amount on glass mirror surface, also can cause and clean difficulty.The flow process of cleaning at present glass mirror generally will be passed through lotion groove, some procedures such as tank, pure water groove, isopropanol bath, methanol vapor groove and baking oven from the beginning, this kind matting process complexity, need a large amount of cleaning raw materials, thereby cost recovery height, produce industrial effluent, cause severe contamination.
In view of this, but to provide a protective glass eyeglass to avoid oil pollution, easy cleaned glass lens semifinished product and preparation method thereof real in necessary.
[summary of the invention]
Below, will a kind of glass lens semifinished product be described with embodiment.
And a kind of glass lens semifinished product preparation method is described by embodiment.
For realizing foregoing, a kind of glass lens semifinished product is provided, it comprises: a glass mirror blank and is uniformly coated on the protective membrane on described glass mirror blank surface, and described protective membrane material comprises the processable organic materials.
The thickness range of described protective membrane is that micron (μ m) level is to millimeter (mm) level.
Described processable organic materials comprises macromolecular material, wax.
Described macromolecular material comprise polyvinyl chloride (Polyvinyl Chloride, PVC), polyvinyl alcohol (Polyvinyl Alcohol, engineering plastics commonly used such as PVA).
Described glass mirror blank comprises aspheric surface glass mirror blank, spherical glass lens blank and other glass mirror blank.
And, a kind of glass lens semifinished product preparation method is provided, it comprises the steps:
The one overlay film liquid that comprises the processable organic materials is provided;
One glass mirror blank is immersed in the described overlay film liquid, makes described glass mirror blank surface form layer protecting film;
The glass mirror blank of dry overlay film forms glass lens semifinished product.
Described processable organic materials is a macromolecular material.
Described macromolecular material comprise polyvinyl chloride (Polyvinyl Chloride, PVC), polyvinyl alcohol (Polyvinyl Alcohol, engineering plastics commonly used such as PVA).
Described overlay film liquid is the processable organic material solution with predetermined concentration.
Described predetermined concentration is 0.5% to 10%.
Preferably, described predetermined concentration is 2% to 5%.
Described processable organic materials is a wax.
Described overlay film liquid is the fused solution of processable organic materials.
The thickness range of described protective membrane is that micron order is to the millimeter level.
Compared with prior art; in glass lens semifinished product that present embodiment provides and preparation method thereof; described protective membrane adopts general engineering plastics to make raw material and consumption seldom; be easy to selection and with low cost, this protective membrane can avoid spot such as greasy dirt to pollute the glass mirror blank at deciding subsequently in the core process.Because be between protective membrane and the glass mirror blank of material a little less than the bonding force with polymer or wax, after decide core, only a need ultrasonic cleaning can easily remove protective membrane, can simplify cleaning process, and required cleaning raw material can significantly reduce the reduction contamination level.
[description of drawings]
Fig. 1 is the glass lens semifinished product synoptic diagram among the technical program embodiment.
Fig. 2 is the glass lens semifinished product preparation flow figure among the technical program embodiment.
[embodiment]
Below in conjunction with accompanying drawing the technical program is described in further detail.
See also Fig. 1, present embodiment provides a kind of glass lens semifinished product 10, and it comprises that a glass mirror blank 11 and is uniformly coated on the protective membrane 12 on described glass mirror blank 11 surfaces, and the material of described protective membrane 12 is the processable organic materials.
The thickness range of described protective membrane 12 is that micron order is to the millimeter level.
Described processable organic materials comprises macromolecular material, wax.
Described macromolecular material comprise polyvinyl chloride (Polyvinyl Chloride, PVC), polyvinyl alcohol (Polyvinyl Alcohol, engineering plastics commonly used such as PVA).
Described glass mirror blank 11 comprises aspheric surface glass mirror blank, spherical glass lens blank and other glass mirror blank.
The glass lens semifinished product 10 that present embodiment provides can be used for making in the processing procedure of various glass mirror.When described glass mirror blank 11 carried out deciding core, the protective membrane 12 that described glass lens semifinished product 10 surfaces form effectively protective glass lens blank 11 avoided cutting pollutions such as greasy dirt; Owing to be between protective membrane and the glass mirror blank 11 of material a little less than the bonding force with polymer or wax, decide to remove the protective membrane 12 on described glass lens semifinished product 10 surfaces easily, thereby obtain required eyeglass after the end of core processing procedure.
See also Fig. 1 and Fig. 2, the technical program also provides a kind of preparation method of glass lens semifinished product 10, and it comprises the steps:
The one overlay film liquid that comprises the processable organic materials is provided;
One glass mirror blank 11 is immersed in the described overlay film liquid, makes and form layer protecting film 12 on the eyeglass;
The glass mirror blank 11 of dry overlay film forms glass lens semifinished product 10.
The technical program is elaborated to the preparation method of described glass lens semifinished product 10 in conjunction with the embodiments.
The one overlay film liquid that comprises the processable organic materials is provided;
One glass mirror blank 11 is placed described macromolecular solution, make with immersion way to form layer protecting film 12 on the described glass mirror blank 11;
Glass mirror blank 11 behind the immersion overlay film is placed in the air-bleed system, treat to take out after two hours.
The macromolecular solution that present embodiment adopts can be selected following two kinds for use: one is polyvinyl chloride (PolyvinylChloride, PVC) polymkeric substance is dissolved in the solution that is made in the ethanolic soln, it two is that (Polyvinyl Alcohol, PVA) polymkeric substance is dissolved in the solution that is made in the pure water with polyvinyl alcohol.In the end remove because of these two kinds of solution institute protective film coatings in the step of protective membrane and more easily remove.The strength of solution of being prepared is 0.5% to 10%, and optimum range is 2% to 5%, could guarantee that protective membrane thickness is more than micron order.
For increasing the dissolution rate of PVC and PVA, can when dissolving, stir and heating, solvent evaporates during because of heating must be noted the supplementing solvent amount.
In the present embodiment; for effective protective glass lens blank 11 avoids cutting pollutions such as greasy dirt, the coating thickness of described protective membrane 12 will have micron order even at least to millimetre-sized thickness, and will be comprehensively overlay film equably; the characteristics that the energy easy removal will be arranged behind the overlay film in addition.
Whether reach above-mentioned requirements for detecting the thickness that soaks back gained protective membrane 12, after from air-bleed system, taking out, also can the thickness Y of protective membrane 12 be measured.Measuring used instrument is fourier infrared (FT-IR) instrument, by following relational expression:
Wherein, A is the surface detecting thickness of overlay film polymer protective film, and it is the absorption value of a certain strong absorption peak of detecting FT-IR.A
0Be the surface detecting thickness of the known macromolecule membrane of standard, it is the absorption value of the same strong absorption peak of detecting FT-IR.Y is the thickness of overlay film polymer protective film, and X is the thickness of the known macromolecule membrane of standard.
The thickness Y that derives protective membrane 12 is:
Certainly, for eliminating the random error of experiment, also need repeatedly to measure by experiment to find out optimum thickness.
Detect with through transmission technique because the protective membrane 12 of described glass lens semifinished product 10 can't directly place the detecting pond of FT-IR instrument, so we make a simple mirror group and detect with the reflection-absorption method.The mirror group comprises the tool that two sheet glass eyeglasses and place eyeglass, adjusts the incident infrared light earlier with manual mode and penetrates on glass mirror blank 11 surfaces, and then reflex to another eyeglass and arrive the FT-IR detector again.
By the thickness Y value of the protective membrane 12 derived, can judge be protected the whether success of step of film 12 of this immersion.
After carrying out deciding the core processing procedure and finishing, need remove the protective membrane 12 of described glass lens semifinished product 10.This process can be utilized ultrasonic cleaning technology, utilize the similar principle that mixes, described glass lens semifinished product 10 is immersed in the used solvent of obtain solution adds ultrasonic cleaning, for example will be immersed in the straight alcohol solution, will be immersed in for the PVA film and carry out ultrasonic cleaning in the pure water for the PVC film.Also can carry out further simple cleaning process after cleaning.
Also can adopt the solution of other engineering plastics base polymer in other embodiments, perhaps adopt molten wax, plated one deck wax film protective membrane 12 in 1 minute in fused wax, form glass lens semifinished product 10 as glass mirror blank 11 is soaked as overlay film liquid.Also can in deciding the core processing procedure, play the effect of anti-oil pollution.
Embodiments of the invention are: compound concentration is 0.1%, 0.5%, 2%, 4%, 5%, 6%, 8%, 10%, 12% and 15% PVC ethanolic soln respectively.Glass mirror blank 11 is put into tool, whole tool is put into the PVC ethanolic soln for preparing, level was soaked 1 minute, level slowly shifts out then, and speed control is taken off tool at 5mm/s, whole tool is put into the hot blast conveying belt, deliver to and decide the core district, temperature remains on 50-60 ℃ on the hot blast conveying belt, and the tool time thereon continues 30 minutes approximately.According to selected polymer kind difference, temperature is also variant.
Experiment finds, concentration is that 2% to 5% solution coating effects is better, is higher than 10% or to be lower than 0.5% solution coating effects relatively poor.
The glass lens semifinished product preparation method of present embodiment can be used for aspheric surface glass mirror blank, spherical glass lens blank and other glass mirror blank.
Compared with prior art; in glass lens semifinished product that present embodiment provides and preparation method thereof; described protective membrane adopts general engineering plastics to make raw material and consumption seldom; be easy to selection and with low cost, this protective membrane can avoid spot such as greasy dirt to pollute the glass mirror blank at deciding subsequently in the core process.Because be between protective membrane and the glass mirror blank of material a little less than the bonding force with polymer or wax, after decide core, a need ultrasonic cleaning can easily remove protective membrane, can simplify cleaning process, and required cleaning raw material can significantly reduce, and reduced contamination level.
Be understandable that, for the person of ordinary skill of the art, can make other various corresponding changes and distortion, and all these changes and distortion all should belong to the protection domain of claim of the present invention according to technical scheme of the present invention and technical conceive.
Claims (15)
1. glass lens semifinished product, it comprises: a glass mirror blank and is uniformly coated on the protective membrane on described glass mirror blank surface, it is characterized in that, and described protective membrane material is the processable organic materials.
2. glass lens semifinished product as claimed in claim 1 is characterized in that, the thickness range of described protective membrane is that micron order is to the millimeter level.
3. glass lens semifinished product as claimed in claim 1 is characterized in that, described processable organic materials comprises macromolecular material, wax.
4. glass lens semifinished product as claimed in claim 3 is characterized in that described macromolecular material comprises polyvinyl chloride, polyvinyl alcohol.
5. as any described glass lens semifinished product in the claim 1 to 4, it is characterized in that described glass mirror blank comprises spheric glass blank, aspherical lens blank.
6. glass lens semifinished product preparation method, it comprises the steps:
The one overlay film liquid that comprises the processable organic materials is provided;
One glass mirror blank is immersed in the described overlay film liquid, makes described glass mirror blank surface form layer protecting film;
The glass mirror blank of dry overlay film forms glass lens semifinished product.
7. glass lens semifinished product preparation method as claimed in claim 6 is characterized in that, described processable organic materials is a macromolecular material.
8. glass lens semifinished product preparation method as claimed in claim 6 is characterized in that described macromolecular material comprises polyvinyl chloride, polyvinyl alcohol.
9. glass lens semifinished product preparation method as claimed in claim 7 is characterized in that, described overlay film liquid is the processable organic material solution with predetermined concentration.
10. glass lens semifinished product preparation method as claimed in claim 6 is characterized in that, described predetermined concentration is 0.5% to 10%.
11. glass lens semifinished product preparation method as claimed in claim 10 is characterized in that, described predetermined concentration is 2% to 5%.
12. glass lens semifinished product preparation method as claimed in claim 6 is characterized in that, described processable organic materials is a wax.
13. glass lens semifinished product preparation method as claimed in claim 6 is characterized in that, described overlay film liquid is the fused solution of processable organic materials.
14. glass lens semifinished product preparation method as claimed in claim 6 is characterized in that, the thickness range of described protective membrane is that micron order is to the millimeter level.
15., it is characterized in that described glass mirror blank comprises spheric glass blank, aspherical lens blank as any described glass lens semifinished product preparation method in the claim 6 to 14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510034863 CN1868950A (en) | 2005-05-24 | 2005-05-24 | Glass lens semifinished product and its preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510034863 CN1868950A (en) | 2005-05-24 | 2005-05-24 | Glass lens semifinished product and its preparation method |
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| Publication Number | Publication Date |
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| CN1868950A true CN1868950A (en) | 2006-11-29 |
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| CN 200510034863 Pending CN1868950A (en) | 2005-05-24 | 2005-05-24 | Glass lens semifinished product and its preparation method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102985384A (en) * | 2010-07-09 | 2013-03-20 | 旭硝子欧洲玻璃公司 | Glass article coated with an enamel layer |
| CN111672721A (en) * | 2020-07-30 | 2020-09-18 | 辽宁中蓝光电科技有限公司 | Lens mechanism diameter waxing and film coating process |
-
2005
- 2005-05-24 CN CN 200510034863 patent/CN1868950A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102985384A (en) * | 2010-07-09 | 2013-03-20 | 旭硝子欧洲玻璃公司 | Glass article coated with an enamel layer |
| CN111672721A (en) * | 2020-07-30 | 2020-09-18 | 辽宁中蓝光电科技有限公司 | Lens mechanism diameter waxing and film coating process |
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Open date: 20061129 |