CN102294542A - Laser cutting method for lens - Google Patents
Laser cutting method for lens Download PDFInfo
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- CN102294542A CN102294542A CN2010102094522A CN201010209452A CN102294542A CN 102294542 A CN102294542 A CN 102294542A CN 2010102094522 A CN2010102094522 A CN 2010102094522A CN 201010209452 A CN201010209452 A CN 201010209452A CN 102294542 A CN102294542 A CN 102294542A
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- eyeglass
- cut
- lens
- waste material
- desired trajectory
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Abstract
The invention discloses a laser cutting method for a lens. In the method, the lens is cut on a lens blank along a predetermined track by using laser light; the predetermined track comprises an internal cutting line of the lens defined on the lens blank and at least one external cutting line for further distinguishing scraps positioned at the periphery of the lens; one end of the external cutting line is connected with the internal cutting line, and the other end of the external cutting line extends out of the edge of the scraps; the depth of the predetermined track on the lens track is smaller than the thickness of the lens; and after cutting along the predetermined track is performed, the lens blank is cooled immediately and the scraps are cleared along the predetermined track. According to the method, expansion of the lens caused by heat absorption is released in the cutting process by using the external cutting line; the scraps are not cut, so that heat absorbed by the lens is not too high; and heat absorbed by the lens can be taken away in time in the cooling step, and the scraps can be cleared easily along the predetermined track.
Description
Technical field
The present invention relates to the laser cutting technique field, more particularly, relate to a kind of laser cutting method of eyeglass.
Background technology
The lens cutting of traditional approach is mainly the hard contact of machinery processing mode, as adopting glass cutter cutting, saw blade cutting, diamond cut etc.In adopting the hard contact of machinery processing mode process,, easily deform because lens bears bigger mechanical stress.Glass lens particularly in the process even can produce slight crack, causes product rejection.Because the machining mode is difficult to realize automation, so its process velocity is slow, production efficiency is lower.
And contactless Laser cutting can make lens need not to bear mechanical stress in process, and simultaneously, Laser Processing speed is fast, the precision height, and as if the conversion machining locus can solve the defective that above-mentioned machinery contacts processing mode firmly arbitrarily.But experiment shows, when adopting the Laser cutting eyeglass, because the irrational accumulation of heat when cutting off, and all leftover bits and pieces of material restriction that eyeglass is expanded under the situation of being heated, the probability that makes eyeglass produce slight crack so that scrap is very high, thereby makes this option of laser cutting lens directly be got rid of by those skilled in the art.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of laser cutting method of eyeglass, and it can reduce the eyeglass defect rate, and significantly enhances productivity.
For solving the problems of the technologies described above, technical scheme of the present invention is: the laser cutting method that a kind of eyeglass is provided, adopt laser on the eyeglass blank, to cut out eyeglass along desired trajectory, described desired trajectory is included in and defines the inner of eyeglasses line of cut on the eyeglass blank, and at least one pair of waste material that is positioned at lens periphery done the outside line of cut of further differentiation, described outside line of cut one end links to each other with described inner line of cut, the other end extends the edge of described waste material, the degree of depth of described desired trajectory on the eyeglass blank is less than the thickness of described eyeglass, after the cutting of described desired trajectory, the eyeglass blank is cooled off immediately and along described desired trajectory waste material removed.
More specifically, described cooling step carries out in cooling fluid.
More specifically, described cooling fluid is the water under the room temperature state.
More specifically, the degree of depth of described desired trajectory on the eyeglass blank is 1/3 to 1/2 of described lens thickness.
More specifically, described outside line of cut at waste material than the density of multizone density greater than the less zone of waste material.
More specifically, during cutting, cut along described inner line of cut earlier, and then cut along described outside line of cut.
Like this, because along being cut by the desired trajectory that inner line of cut and outside line of cut constituted, in the cutting process, eyeglass obtains discharging by outside line of cut because absorb the caused expansion of heat meeting; And owing to the thickness of the degree of depth of described desired trajectory on the eyeglass blank less than described eyeglass, heat that eyeglass absorbs can be too not high yet, thereby reduced the probability that eyeglass produces slight crack so that scraps significantly; Owing to the eyeglass blank after the cutting being cooled off immediately, not only can in time take away eyeglass the heat that is absorbed, can also along described desired trajectory waste material be broken off with the fingers and thumb at an easy rate and remove.
Description of drawings
Fig. 1 is that the master of desired trajectory on a preferred embodiment of the present invention eyeglass blank looks schematic diagram.
The specific embodiment
In order to make technical problem to be solved by this invention, technical scheme and beneficial effect clearer,, the present invention is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
Please refer to Fig. 1, be a preferred embodiment of the present invention, the laser cutting method of present embodiment eyeglass comprises along desired trajectory the eyeglass blank carried out step of cutting, and after cutting is finished, the step of cooling off immediately and waste material being removed.
Described desired trajectory is included in the outside line of cut 2 that the inside line of cut 1 that defines eyeglass 3 on the eyeglass blank and at least one pair of waste material 4 that is positioned at eyeglass 3 peripheries are done further differentiation.In the present embodiment, described inner line of cut 1 is for being positioned at the closed curve on the eyeglass blank, and the quantity of outside line of cut 2 is four.One end of described four outside lines of cut 2 links to each other with described inner line of cut 1 respectively, and the other end extends the edge of described waste material 4 respectively.The degree of depth of described desired trajectory on the eyeglass blank is less than the thickness of described eyeglass, and in the present embodiment, the degree of depth of described desired trajectory on the eyeglass blank is 1/3 to 1/2 of described lens thickness.When outside line of cut 2 is set, can make described outside line of cut 2 at waste material than the density of multizone density greater than the less zone of waste material.
During cutting, cut along described inner line of cut 1 earlier, and then cut along described outside line of cut 2.Like this, owing to cut along the desired trajectory that is made of inner line of cut 1 and outside line of cut 2, in the cutting process, eyeglass 3 is released by outside line of cut because absorb the caused expansion of heat meeting.And since waste material be not cut off, eyeglass 3 absorbs heat can be too not high yet, produce the probability that slight crack is consequently scrapped thereby reduced eyeglass significantly.
In the present embodiment, described cooling step carries out in cooling fluid, and described cooling fluid can be the water under the room temperature state, also can be the cooling fluid of other types.Because the eyeglass blank after the cutting is cooled off immediately; the heat that not only can in time take away eyeglass and absorbed; and; tension between eyeglass 3 and the waste material 4 can be owing to cooling effect becomes compression; crystal grain between eyeglass 3 and the waste material 4 shrinks rapidly and diminishes; and to both edge playing certain reinforcement protection effect; can along described desired trajectory waste material be removed at an easy rate; and the removing of waste material 4 action can not damage eyeglass 3, thereby has reduced the generation of phenomenons such as slight crack.The removing of waste material can be adopted manually and waste material be broken off with the fingers and thumb the mode of removing along described desired trajectory.
After waste material is eliminated, simply polished in the edge of eyeglass 3, can obtain finished product.
The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. the laser cutting method of an eyeglass, adopt laser on the eyeglass blank, to cut out eyeglass along desired trajectory, it is characterized in that: described desired trajectory is included in and defines the inner of eyeglasses line of cut on the eyeglass blank, and at least one pair of waste material that is positioned at lens periphery done the outside line of cut of further differentiation, described outside line of cut one end links to each other with described inner line of cut, the other end extends the edge of described waste material, the degree of depth of described desired trajectory on the eyeglass blank is less than the thickness of described eyeglass, after the cutting of described desired trajectory, the eyeglass blank is cooled off immediately and along described desired trajectory waste material removed.
2. the laser cutting method of eyeglass as claimed in claim 1, it is characterized in that: described cooling step carries out in cooling fluid.
3. the laser cutting method of eyeglass as claimed in claim 2, it is characterized in that: described cooling fluid is the water under the room temperature state.
4. the laser cutting method of eyeglass as claimed in claim 1, it is characterized in that: the degree of depth of described desired trajectory on the eyeglass blank is 1/3 to 1/2 of described lens thickness.
5. the laser cutting method of eyeglass as claimed in claim 1 is characterized in that: described outside line of cut at waste material than the density of multizone density greater than the less zone of waste material.
6. the laser cutting method of eyeglass as claimed in claim 1 is characterized in that: during cutting, cut along described inner line of cut earlier, and then cut along described outside line of cut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010209452.2A CN102294542B (en) | 2010-06-24 | 2010-06-24 | Laser cutting method for lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010209452.2A CN102294542B (en) | 2010-06-24 | 2010-06-24 | Laser cutting method for lens |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102294542A true CN102294542A (en) | 2011-12-28 |
| CN102294542B CN102294542B (en) | 2014-03-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010209452.2A Active CN102294542B (en) | 2010-06-24 | 2010-06-24 | Laser cutting method for lens |
Country Status (1)
| Country | Link |
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| CN (1) | CN102294542B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102898013A (en) * | 2012-09-07 | 2013-01-30 | 东莞光谷茂和激光技术有限公司 | Method for cutting glass substrate by using ultraviolet laser |
| CN103771694A (en) * | 2014-01-08 | 2014-05-07 | 合肥鑫晟光电科技有限公司 | Laser cutting method and laser cutting system |
| CN112390519A (en) * | 2020-10-31 | 2021-02-23 | 江苏汇鼎光学眼镜有限公司 | Lens cutting method |
Citations (7)
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|---|---|---|---|---|
| JPS6188991A (en) * | 1984-10-08 | 1986-05-07 | Hisahiro Hirasaka | Glass working method by laser beam |
| JP2005186401A (en) * | 2003-12-25 | 2005-07-14 | Nippon Sheet Glass Co Ltd | Method for cutting plate-shaped fragile material |
| CN101121220A (en) * | 2006-08-11 | 2008-02-13 | 富士迈半导体精密工业（上海）有限公司 | Method for cutting crisp material substrate |
| CN101130216A (en) * | 2006-08-25 | 2008-02-27 | 富士迈半导体精密工业（上海）有限公司 | Laser cutting method |
| CN101200024A (en) * | 2006-12-13 | 2008-06-18 | 富士迈半导体精密工业（上海）有限公司 | Laser cutting system and cutting method |
| CN101279403A (en) * | 2007-04-06 | 2008-10-08 | 富士迈半导体精密工业（上海）有限公司 | Laser processing method |
| CN101301703A (en) * | 2007-05-08 | 2008-11-12 | 福特全球技术公司 | Scan laser cutting method |
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2010
- 2010-06-24 CN CN201010209452.2A patent/CN102294542B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6188991A (en) * | 1984-10-08 | 1986-05-07 | Hisahiro Hirasaka | Glass working method by laser beam |
| JP2005186401A (en) * | 2003-12-25 | 2005-07-14 | Nippon Sheet Glass Co Ltd | Method for cutting plate-shaped fragile material |
| CN101121220A (en) * | 2006-08-11 | 2008-02-13 | 富士迈半导体精密工业（上海）有限公司 | Method for cutting crisp material substrate |
| CN101130216A (en) * | 2006-08-25 | 2008-02-27 | 富士迈半导体精密工业（上海）有限公司 | Laser cutting method |
| CN101200024A (en) * | 2006-12-13 | 2008-06-18 | 富士迈半导体精密工业（上海）有限公司 | Laser cutting system and cutting method |
| CN101279403A (en) * | 2007-04-06 | 2008-10-08 | 富士迈半导体精密工业（上海）有限公司 | Laser processing method |
| CN101301703A (en) * | 2007-05-08 | 2008-11-12 | 福特全球技术公司 | Scan laser cutting method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102898013A (en) * | 2012-09-07 | 2013-01-30 | 东莞光谷茂和激光技术有限公司 | Method for cutting glass substrate by using ultraviolet laser |
| CN103771694A (en) * | 2014-01-08 | 2014-05-07 | 合肥鑫晟光电科技有限公司 | Laser cutting method and laser cutting system |
| CN112390519A (en) * | 2020-10-31 | 2021-02-23 | 江苏汇鼎光学眼镜有限公司 | Lens cutting method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102294542B (en) | 2014-03-12 |
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