CN111002114A - Precise polishing method for germanium lens - Google Patents
Precise polishing method for germanium lens Download PDFInfo
- Publication number
- CN111002114A CN111002114A CN202010007209.6A CN202010007209A CN111002114A CN 111002114 A CN111002114 A CN 111002114A CN 202010007209 A CN202010007209 A CN 202010007209A CN 111002114 A CN111002114 A CN 111002114A
- Authority
- CN
- China
- Prior art keywords
- polishing
- lens
- germanium lens
- germanium
- numerical control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B13/00—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B13/00—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor
- B24B13/01—Specific tools, e.g. bowl-like; Production, dressing or fastening of these tools
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
A germanium lens precision polishing method comprises the following steps: s1: putting the germanium lens into a clamp of PFA or PVDF; s2: rapidly removing a germanium lens surface loss layer by a grinding and polishing machine; s3: and taking off the germanium lens, and carrying out numerical control polishing and finishing to finish the surface shape. According to the invention, by adopting the integrated polishing processing method of high-speed grinding and polishing and numerical control fine trimming, the polishing efficiency and the surface quality of the lens are greatly improved, the processed surface quality is consistent, intelligent processing is conveniently realized, the labor force is reduced, and the processing efficiency and the processing quality are improved.
Description
Technical Field
The invention relates to the technical field of germanium lens polishing, in particular to a precise polishing method for a germanium lens.
Background
The polishing process of the prior germanium lens comprises a classical polishing processing method, a high-speed polishing processing method and a numerical control polishing processing method, wherein the classical polishing is the earliest developed process and plays an important role in the traditional white light and infrared material polishing processing, but the biggest defect of the polishing process is that the polishing process has high requirements on personnel experience, is difficult to inherit and maintain the process consistency and has low efficiency; the damaged layer on the surface of the lens can be quickly removed by high-speed polishing, but the surface shape is difficult to regulate and control; numerical control polishing is a new polishing method applied in recent years, the surface shape precision can meet high requirements, but the defects of low efficiency and difficult surface quality control exist.
Disclosure of Invention
In order to solve the technical problems in the background art, the invention provides the germanium lens precision polishing method, the polishing efficiency and the lens surface quality are greatly improved, the processed surface quality is consistent, the intelligent processing is convenient to realize, the labor force is reduced, and the processing efficiency and the processing quality are improved.
In order to solve the problems, the invention provides a germanium lens precision polishing method, which comprises the following steps:
s1: putting the germanium lens into a clamp of PFA or PVDF;
s2: rapidly removing a germanium lens surface loss layer by a grinding and polishing machine;
s3: and taking off the germanium lens, and carrying out numerical control polishing and finishing to finish the surface shape.
Preferably, the clamping diameter is 5-250 mm.
Preferably, the rotating speed of the grinding and polishing machine is 200-1000 r/min.
Preferably, the polishing head of the polishing machine swings in a flat pendulum or an ellipsoidal pendulum.
Preferably, the polishing head of the polishing machine is made of copper or stainless steel.
Preferably, the polishing cloth of the polishing machine is made of polyurethane.
Preferably, in the finishing surface type, the numerical control finishing is programmed to set the curvature radius and the feed amount, and the fit between the lens and the polishing head is controlled in a control manner.
According to the invention, by adopting the integrated polishing processing method of high-speed grinding and polishing and numerical control fine trimming, the polishing efficiency and the surface quality of the lens are greatly improved, the processed surface quality is consistent, intelligent processing is conveniently realized, the labor force is reduced, and the processing efficiency and the processing quality are improved.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
The invention provides a germanium lens precision polishing method, which comprises the following steps:
s1: putting the germanium lens into a clamp of PFA or PVDF;
s2: rapidly removing a germanium lens surface loss layer by a grinding and polishing machine;
s3: and taking off the germanium lens, and carrying out numerical control polishing and finishing to finish the surface shape.
In an alternative embodiment, in the finishing profile, the numerical control finishing is programmed to set the radius of curvature and the feed amount, and the fit between the lens and the polishing head is controlled in a controlled manner.
According to the invention, by adopting the integrated polishing processing method of high-speed grinding and polishing and numerical control fine trimming, the polishing efficiency and the surface quality of the lens are greatly improved, the processed surface quality is consistent, intelligent processing is conveniently realized, the labor force is reduced, and the processing efficiency and the processing quality are improved.
In an optional embodiment, the clamping diameter size is 5-250mm, the clamping device is suitable for germanium lenses with different diameter sizes, and the use is convenient.
In an optional embodiment, the rotating speed of the polishing machine is 200-1000 r/min, high-speed polishing is achieved, and the polishing effect is better.
In an optional embodiment, the polishing head of the polishing machine swings in a flat pendulum or an ellipsoidal pendulum, so that the polishing effect is ensured, scratching is prevented, and the polishing quality is improved.
In an optional embodiment, the polishing head of the polishing machine is made of copper or stainless steel, and the polishing cloth of the polishing machine is made of polyurethane, so that the polishing effect and the polishing quality are improved.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (7)
1. A germanium lens precision polishing method is characterized by comprising the following steps:
s1: putting the germanium lens into a clamp of PFA or PVDF;
s2: rapidly removing a germanium lens surface loss layer by a grinding and polishing machine;
s3: and taking off the germanium lens, and carrying out numerical control polishing and finishing to finish the surface shape.
2. The method of claim 1, wherein the clamping diameter is 5-250 mm.
3. The method of claim 1, wherein the polishing machine is operated at a speed of 200-1000 r/min.
4. The precision polishing method of a germanium lens according to claim 1, wherein the polishing head of the polishing machine swings in a flat pendulum or an ellipsoidal pendulum.
5. The method of claim 1, wherein the polishing head of the polishing machine is made of copper or stainless steel.
6. The method of claim 1, wherein the polishing cloth of the polishing machine is made of polyurethane.
7. The method of claim 1, wherein the radius of curvature and the feed rate are programmed for the numerical control finishing in the finishing profile, and the fit between the lens and the polishing head is controlled in a controlled manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010007209.6A CN111002114A (en) | 2020-01-04 | 2020-01-04 | Precise polishing method for germanium lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010007209.6A CN111002114A (en) | 2020-01-04 | 2020-01-04 | Precise polishing method for germanium lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111002114A true CN111002114A (en) | 2020-04-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010007209.6A Pending CN111002114A (en) | 2020-01-04 | 2020-01-04 | Precise polishing method for germanium lens |
Country Status (1)
| Country | Link |
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| CN (1) | CN111002114A (en) |
Citations (14)
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| CN104493662A (en) * | 2014-12-15 | 2015-04-08 | 吉林大学 | Machining device for curvature radius-adjustable aspheric concave lens |
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| CN105467480A (en) * | 2015-11-23 | 2016-04-06 | 天津津航技术物理研究所 | Aspheric surface processing method of high-precision CVD ZnSe lens |
| CN206795484U (en) * | 2017-06-16 | 2017-12-26 | 福州百晶光电有限公司 | A kind of processing jig for lenses polishing |
| CN107775453A (en) * | 2017-09-05 | 2018-03-09 | 上海现代先进超精密制造中心有限公司 | A kind of high-accuracy processing method of strip speculum |
| CN207087532U (en) * | 2017-06-16 | 2018-03-13 | 福州百晶光电有限公司 | A kind of auxiliary fixture for lenses polishing |
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- 2020-01-04 CN CN202010007209.6A patent/CN111002114A/en active Pending
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| CN1785559A (en) * | 2004-12-06 | 2006-06-14 | 云南北方光学电子集团有限公司 | Processing method of germanium single crystal aspheric optical element |
| CN101376229A (en) * | 2007-08-30 | 2009-03-04 | 长春理工大学 | Processing method and device for forming aspheric surface part by numerical control tangent line turning method |
| CN101829790A (en) * | 2010-04-12 | 2010-09-15 | 厦门大学 | Turning processing method of small aspherical optical element |
| CN103481155A (en) * | 2013-08-23 | 2014-01-01 | 中国航天科工集团第三研究院第八三五八研究所 | Numerical control machining method of Si aspherical lens |
| CN103722182A (en) * | 2013-12-12 | 2014-04-16 | 郑丽萍 | Method for turning germanium lens |
| CN104385064A (en) * | 2014-10-14 | 2015-03-04 | 中国科学院光电技术研究所 | Large-caliber plane machining method combining numerical control small tool and ring polishing machine |
| CN104493662A (en) * | 2014-12-15 | 2015-04-08 | 吉林大学 | Machining device for curvature radius-adjustable aspheric concave lens |
| CN204584907U (en) * | 2015-05-18 | 2015-08-26 | 中国船舶重工集团公司第七一七研究所 | A kind of ultra-smooth lens polishing device |
| CN105467480A (en) * | 2015-11-23 | 2016-04-06 | 天津津航技术物理研究所 | Aspheric surface processing method of high-precision CVD ZnSe lens |
| CN206795484U (en) * | 2017-06-16 | 2017-12-26 | 福州百晶光电有限公司 | A kind of processing jig for lenses polishing |
| CN207087532U (en) * | 2017-06-16 | 2018-03-13 | 福州百晶光电有限公司 | A kind of auxiliary fixture for lenses polishing |
| CN107775453A (en) * | 2017-09-05 | 2018-03-09 | 上海现代先进超精密制造中心有限公司 | A kind of high-accuracy processing method of strip speculum |
| CN109732439A (en) * | 2019-03-04 | 2019-05-10 | 中国工程物理研究院激光聚变研究中心 | A kind of optical element rim of the mouth diameter polishing clamp |
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Application publication date: 20200414 |
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