US3886696A - Mounting device for optical lenses - Google Patents
Mounting device for optical lenses Download PDFInfo
- Publication number
- US3886696A US3886696A US402321A US40232173A US3886696A US 3886696 A US3886696 A US 3886696A US 402321 A US402321 A US 402321A US 40232173 A US40232173 A US 40232173A US 3886696 A US3886696 A US 3886696A
- Authority
- US
- United States
- Prior art keywords
- lens holder
- annular part
- lens
- rod
- universal joint
- 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.)
- Expired - Lifetime
Links
Images
Classifications
-
- 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
- B24B13/005—Blocking means, chucks or the like; Alignment devices
Definitions
- a U- 51 Int. Cl B24b 5/16 Shaped Sealing device is Provided between the flanges 58 Field of Search 51/216 LP, 216 T, 217 L, Of the Cup-Shaped member and the mounting plate for 51/124 L, 231, 232, 233, 237 269/22, 20 both sealing the space therebetween against escape of 269/310; 279/16, 10, 1 Q 7 the pressure fluid and also for effecting a driving of the mounting plate for rotation with the cup-shaped [56] References Cited member.
- the actual control of the lens is through the ball joint, and the driving of same for ro- UNITED STATES PATENTS tation is through the U-shaped sealing device.
- the invention relates to a mounting device for optical lenses for use in a grinding and polishing machine.
- the device comprises a lens holder which is connected through a universal joint fixed with respect to rotation to a rotatable or transversely movable rod.
- the basic purpose of the invention is to construct a mounting device of the type mentioned above which under conditions of free adjustment around the universal joint will make possible a clearance-free, uniformmotion, coupling between rod and lens holder.
- the mounting chuck is so constructed as to relieve the universal joint in whole or in part from the operating pressure.
- This purpose is attained by arranging an annular part on the rod, which part is connected to the lens holder by a roll bellows which is stiff in a peripheral or circumferential direction.
- a further development of the invention which relieves the universal joint from the operating pressure, is characterized in that the annular part is constructed as a closed cover part and, in cooperation with the roll bellows and the lens holder against the pressure medium, closes a joint chamber in which the universal joint is located and has a conduit therein for the feeding of pressure medium into the joint chamber.
- the roll bellows with a fabric in- In a mounting device so constructed the operating pressure is exerted by the pressure medium to urge the lens holder away from the cover part.
- the universal joint then only needs to effect an exact centering of the lens holder and needs to absorb only relatively small forces.
- the life of same is substantially increased because there is both a protection of the joint against contact with grinding means or polishing means and a substantial reduction of the stress on the joint.
- At least some parts are made of a light material in order to minimize the mass of the device and thus the mass forces.
- FIG. 1 illustrates a mounting chuck for receiving spherical lenses
- FIG. 2 illustrates a mounting chuck for lenses having toric surfaces.
- the mounting device which is illustrated in a diametrical cross section in FIG. 1 is secured on a ball bearing supported shaft 1.
- the mounting can be a part of a machine or otherwise.
- An axially movable pin 2 is supported in the shaft 1, which pin is ball-shaped at its forward end, as indicated by reference numeral 3.
- the pin 2 is movable longitudinally by a spring 5.
- a bell-shaped cover 6 is secured on the shaft 1, which cover 6 has a central bore with an annular groove therein, in which groove lies a seal ring 7.
- the seal ring contacts the shaft 1.
- the cover 6 is held against relative rotation on the shaft 1 by an adjusting screw 17.
- a lens holder 8 is connected to the cover 6.
- the lens holder has a recess 9 on its upper side, into which recess the ball 3 of the ball pin 2- is received.
- the front or lower side of the lens holder 8 has a recess 10 into which is inserted the lens 13 to be treated.
- An elastic intermediate layer 11 protects the lens against damage.
- the cylindrical outer periphery of the lens is supported on a centering flange 12 of the lens holder 8 and is thus secured against a circumferential shifting.
- the connection of the lens holder 8 and of the cover 6 is accomplished according to the invention through a bellows 14 of elastic material, for example of rubber.
- the bellows 14 is fixedly connected to the lens holder 8 and the cover 6 which define therebetween a closed space 15, which latter can be termed a joint chamber because in this chamber the joint 3, 9 is located.
- the bellows is constructed as a so-called roll bellows. It is secured with one edge on the cylindrical inner side 18 of the bell-shaped cover 6 and with its other edge on the cylindrical outer side 19 of the lens holder 8.
- a de formable insert is recessed into the bellows 14, which insert permits tilting movement of the lens holder 8 but does not permit relative rotation between the cover 6 and the lens holder 8 and prevents inflating of the bellows 14 during a condition of excess pressure in the joint chamber 15.
- the lens holder is here composed of two parts, namely a first lens holding part 20 and a second lens holding part 21.
- first lens holding part 20 On the first lens holding part 20 there are provided two conical driving lugs 22 which engage corresponding recesses 23 in the second lens holding part 21 and thereby fix the axes of a toric surface in the desired position relative to the tool.
- the lens 13 is here a lens with toric surfaces.
- the lens is conveniently secured by adhesively fastening the second lens holding part 21.
- the part l-A is in the embodiment of FIG. 2 not a rotatable shaft but a rod mounted for movement transversely of its longitudinal direction. To effect such transverse movement, there is provided a reciprocable rod 24 which is secured on the part l-A by means of a clamp 25.
- the mounting device operates as follows:
- a pressure medium preferably air, is conducted through longitudinal bores 4 in the part 1 (or l-A) and the ball pin 2 with a desired excess of pressure into the joint chamber of the mounting device.
- the pressure medium acts through the lens holder 8 or and the bellows 14 to urge the lens 13 against the tool 16.
- the spring 5 holds the ball pin 2 in the recess of the lens holders 8 or 20 and prevents a lateral shifting of the lens holder and thus of the lens.
- the uniform-motion suspension of the lens holder 8 or 20 by the ball pin 2 and the bellows 8 permits the lens to effect an exact contact with the tool 16.
- a mounting chuck for optical lenses for use in a grinding and polishing machine comprising a movable rod and a lens holder which is connected to said movable rod through a universal joint
- the improvement comprising an annular part mounted on said rod and movable therewith and a roll bellows having a characteristic of being generally stiff in a circumferential direction but flexible in an axial direction for connecting said lens holder to said annular part, said roll bellows being U-shaped in cross section and having a pair of legs, one disposed radially inwardly with respect to the other, a first leg being secured to said annular part, the second leg being secured to said lens holder, the bight portion connecting said pair of legs being rounded, said roll bellows effecting a torque transmission from said annular part to said lens holder.
- a mounting chuck for optical lenses for use in a grinding and polishing machine comprising a movable rod and and lens holder-which is connected to said movable rod through universal joint means, the improvement comprising an annular part mounted on said rod and movable therewith and a roll bellows which is generally stiff in a circumferential direction but flexible in an axial direction for connecting said lens holder to said annular part, said roll bellows effecting a torque transmission from said annular part to said lens part and being sealingly engaged with said annular part and said lens holder to define a fluid tight chamber therebetween, said universal joint means being located in said fluid tight chamber and passageway means for supplying pressurized fluid to said fluid tight chamber to urge said lens holder axially away from said annular part so that said universal joint means only functions to center said lens holder and absorb very small radial and axial forces.
- annular part is bell-shaped and has flange means for gripping over said lens holder, said roll bellows being secured on and between the mutually facing surfaces of a substantially cylindrical outer surface of said lens holder and a substantially cylindrical inner surface of said flange means.
- said lens holder consists of a first lens holding part connected to said roll bellows and a second lens holding part which is connected to said first lens holding part for rotation therewith, said second lens holding part having a lens abutment surface thereon engaging a lens.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2252503A DE2252503C3 (de) | 1972-10-26 | 1972-10-26 | Futter für optische Linsen zur Verwendung in Linsenschleif- oder Poliermaschinen |
Publications (1)
Publication Number | Publication Date |
---|---|
US3886696A true US3886696A (en) | 1975-06-03 |
Family
ID=5860113
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US402321A Expired - Lifetime US3886696A (en) | 1972-10-26 | 1973-10-01 | Mounting device for optical lenses |
Country Status (6)
Country | Link |
---|---|
US (1) | US3886696A (de) |
DE (1) | DE2252503C3 (de) |
ES (1) | ES419892A1 (de) |
FR (1) | FR2204990A5 (de) |
GB (1) | GB1429067A (de) |
IT (1) | IT995560B (de) |
Cited By (34)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4193226A (en) * | 1977-09-21 | 1980-03-18 | Kayex Corporation | Polishing apparatus |
US4194324A (en) * | 1978-01-16 | 1980-03-25 | Siltec Corporation | Semiconductor wafer polishing machine and wafer carrier therefor |
US4270314A (en) * | 1979-09-17 | 1981-06-02 | Speedfam Corporation | Bearing mount for lapping machine pressure plate |
US4319432A (en) * | 1980-05-13 | 1982-03-16 | Spitfire Tool And Machine Co. | Polishing fixture |
US4653234A (en) * | 1983-09-02 | 1987-03-31 | Essilor International Cie Generale D'optique | Workpiece holder apparatus for surfacing optical lenses |
US4686795A (en) * | 1982-09-16 | 1987-08-18 | Giovanni Colliva | Principles and appliances for cutting of spherical-faceted gems and gems thus obtained |
US4844143A (en) * | 1987-03-30 | 1989-07-04 | Essilor International (Compagnie Generale D'optique) | Mold for fixing a metal block on one of the faces of an ophthalmic lens |
US5175961A (en) * | 1990-11-14 | 1993-01-05 | Penico Holdings Limited | Device for supporting a moving part |
US5291692A (en) * | 1989-09-14 | 1994-03-08 | Olympus Optical Company Limited | Polishing work holder |
US5345725A (en) * | 1993-04-06 | 1994-09-13 | Anthony Frank H | Variable pitch lapping block for polishing lenses |
US5421770A (en) * | 1992-05-01 | 1995-06-06 | Loh Engineering Ag | Device for guiding a workpiece or tool in the machining of toric or spherical surfaces of optical lenses on grinding or polishing machines |
US5462475A (en) * | 1993-02-12 | 1995-10-31 | National Optronics, Inc. | Blocking system for prescription lenses |
US6074288A (en) * | 1997-10-30 | 2000-06-13 | Lsi Logic Corporation | Modified carrier films to produce more uniformly polished substrate surfaces |
US6224467B1 (en) * | 1997-07-31 | 2001-05-01 | Menicon Co., Ltd. | Method of producing ocular lens and holders for holding lens blank during cutting thereof |
US6419570B1 (en) * | 1999-05-03 | 2002-07-16 | Wernicke & Co. Gmbh | Holding device for a spectacle glass |
US6625893B2 (en) * | 2000-09-14 | 2003-09-30 | Kabushiki Kaisha Topcon | Template holder |
US20050037695A1 (en) * | 2000-02-03 | 2005-02-17 | Christoph Kuebler | Polishing head for a polishing machine |
US20050267316A1 (en) * | 2004-05-10 | 2005-12-01 | Paul Knochel | Chiral diphosphinoterpenes and transition metal complexes thereof |
EP1649977A1 (de) * | 2004-10-21 | 2006-04-26 | Carl Zeiss AG | Aufnahmevorrichtung für ein optisches Element |
US20060262661A1 (en) * | 2005-04-28 | 2006-11-23 | Nidek Co., Ltd. | Lens presser for holding eyeglass lens and eyeglass lens processing apparatus having the same |
CN104175191A (zh) * | 2014-08-19 | 2014-12-03 | 江苏双仪光学器材有限公司 | 一种镜片研削连体压力头 |
US20150024663A1 (en) * | 2013-07-22 | 2015-01-22 | Canon Kabushiki Kaisha | Component manufacturing method and polishing apparatus |
JP2015020255A (ja) * | 2013-07-22 | 2015-02-02 | キヤノン株式会社 | 部品の製造方法および研磨装置 |
JP2015020256A (ja) * | 2013-07-22 | 2015-02-02 | キヤノン株式会社 | 部品の製造方法および研磨装置 |
US20160052101A1 (en) * | 2013-10-29 | 2016-02-25 | Olympus Corporation | Lens holding tool |
CN105437055A (zh) * | 2015-12-10 | 2016-03-30 | 中车洛阳机车有限公司 | 一种喷油器支座板的研磨装置 |
CN106541311A (zh) * | 2016-10-13 | 2017-03-29 | 中国航空工业集团公司洛阳电光设备研究所 | 一种楔形组合镜的加工方法 |
JP2018047553A (ja) * | 2018-01-09 | 2018-03-29 | キヤノン株式会社 | 部品の製造方法および研磨装置 |
WO2018153816A1 (de) * | 2017-02-24 | 2018-08-30 | Schneider Gmbh & Co. Kg | Blockstück zum blocken einer linse |
CN108942534A (zh) * | 2018-08-16 | 2018-12-07 | 陶佩林 | 一种防盗井盖自动加工设备 |
CN111168523A (zh) * | 2020-01-14 | 2020-05-19 | 义乌融鹄电子科技有限公司 | 一种透镜抛光机用压紧抛光机构 |
CN111203778A (zh) * | 2020-01-14 | 2020-05-29 | 义乌融鹄电子科技有限公司 | 一种透镜抛光机用可调压压紧机构 |
CN111958484A (zh) * | 2020-08-18 | 2020-11-20 | 中国科学院光电技术研究所 | 一种内圆柱表面抛光工具 |
US20210101251A1 (en) * | 2019-10-02 | 2021-04-08 | Optikron GmbH | Apparatus and Method for Grinding and/or Polishing Flat Surfaces of Workpieces |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5739161Y2 (de) * | 1977-02-08 | 1982-08-28 | ||
JPS57132954A (en) * | 1981-02-10 | 1982-08-17 | Aisin Warner Ltd | Grinding method and device for flat annular surface |
FR2523890A1 (fr) * | 1982-03-26 | 1983-09-30 | Fabrications Optiques Et | Machine doucisseuse ou polisseuse pour lentilles optiques |
JPS6139349U (ja) * | 1984-08-13 | 1986-03-12 | 株式会社 馬渕商店 | レンズ研磨機のレンズ保持装置 |
KR910009320B1 (ko) * | 1986-08-19 | 1991-11-09 | 미쓰비시 마테리알 가부시기가이샤 | 연마장치 |
US6095905A (en) * | 1998-07-01 | 2000-08-01 | Molecular Optoelectronics Corporation | Polishing fixture and method |
DE10044872C2 (de) * | 2000-09-12 | 2003-03-20 | Optotech Optikmasch Gmbh | Verfahren zum Polieren von optischen Linsen oder Spiegeln mit abbildenden Eigenschaften |
DE10053230A1 (de) * | 2000-10-26 | 2002-05-08 | Schneider Gmbh & Co Kg | Spannfutter für eine Vorrichtung zum Polieren von Linsen und Vorrichtung mit einem solchen Spannfutter |
EP2661904A4 (de) * | 2011-01-03 | 2015-05-27 | Apple Inc | Audiosystem |
CN112059815B (zh) * | 2020-08-20 | 2022-05-31 | 中国科学院上海光学精密机械研究所 | 一种固定式磨头结构及其无边缘误差加工方法 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1217090A (en) * | 1915-10-09 | 1917-02-20 | Nat Trust Company Ltd | Lens-grinding machine. |
US1639012A (en) * | 1924-12-03 | 1927-08-16 | American Optical Corp | Surfacing machine |
US2441108A (en) * | 1947-02-24 | 1948-05-04 | Eastman Kodak Co | Abrading apparatus |
US2736993A (en) * | 1953-03-25 | 1956-03-06 | American Optical Corp | Abrading apparatus |
US3499641A (en) * | 1967-10-02 | 1970-03-10 | Collins Radio Co | Fluid pressure actuated diaphragm workpiece clamping device |
-
1972
- 1972-10-26 DE DE2252503A patent/DE2252503C3/de not_active Expired
-
1973
- 1973-10-01 US US402321A patent/US3886696A/en not_active Expired - Lifetime
- 1973-10-02 IT IT29642/73A patent/IT995560B/it active
- 1973-10-24 ES ES419892A patent/ES419892A1/es not_active Expired
- 1973-10-25 FR FR7338077A patent/FR2204990A5/fr not_active Expired
- 1973-10-26 GB GB4999573A patent/GB1429067A/en not_active Expired
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1217090A (en) * | 1915-10-09 | 1917-02-20 | Nat Trust Company Ltd | Lens-grinding machine. |
US1639012A (en) * | 1924-12-03 | 1927-08-16 | American Optical Corp | Surfacing machine |
US2441108A (en) * | 1947-02-24 | 1948-05-04 | Eastman Kodak Co | Abrading apparatus |
US2736993A (en) * | 1953-03-25 | 1956-03-06 | American Optical Corp | Abrading apparatus |
US3499641A (en) * | 1967-10-02 | 1970-03-10 | Collins Radio Co | Fluid pressure actuated diaphragm workpiece clamping device |
Cited By (44)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4193226A (en) * | 1977-09-21 | 1980-03-18 | Kayex Corporation | Polishing apparatus |
US4194324A (en) * | 1978-01-16 | 1980-03-25 | Siltec Corporation | Semiconductor wafer polishing machine and wafer carrier therefor |
US4270314A (en) * | 1979-09-17 | 1981-06-02 | Speedfam Corporation | Bearing mount for lapping machine pressure plate |
US4319432A (en) * | 1980-05-13 | 1982-03-16 | Spitfire Tool And Machine Co. | Polishing fixture |
US4686795A (en) * | 1982-09-16 | 1987-08-18 | Giovanni Colliva | Principles and appliances for cutting of spherical-faceted gems and gems thus obtained |
US4653234A (en) * | 1983-09-02 | 1987-03-31 | Essilor International Cie Generale D'optique | Workpiece holder apparatus for surfacing optical lenses |
US4844143A (en) * | 1987-03-30 | 1989-07-04 | Essilor International (Compagnie Generale D'optique) | Mold for fixing a metal block on one of the faces of an ophthalmic lens |
US5291692A (en) * | 1989-09-14 | 1994-03-08 | Olympus Optical Company Limited | Polishing work holder |
US5175961A (en) * | 1990-11-14 | 1993-01-05 | Penico Holdings Limited | Device for supporting a moving part |
US5421770A (en) * | 1992-05-01 | 1995-06-06 | Loh Engineering Ag | Device for guiding a workpiece or tool in the machining of toric or spherical surfaces of optical lenses on grinding or polishing machines |
US5462475A (en) * | 1993-02-12 | 1995-10-31 | National Optronics, Inc. | Blocking system for prescription lenses |
US5345725A (en) * | 1993-04-06 | 1994-09-13 | Anthony Frank H | Variable pitch lapping block for polishing lenses |
US6224467B1 (en) * | 1997-07-31 | 2001-05-01 | Menicon Co., Ltd. | Method of producing ocular lens and holders for holding lens blank during cutting thereof |
US6074288A (en) * | 1997-10-30 | 2000-06-13 | Lsi Logic Corporation | Modified carrier films to produce more uniformly polished substrate surfaces |
US6419570B1 (en) * | 1999-05-03 | 2002-07-16 | Wernicke & Co. Gmbh | Holding device for a spectacle glass |
US20050037695A1 (en) * | 2000-02-03 | 2005-02-17 | Christoph Kuebler | Polishing head for a polishing machine |
US8011996B2 (en) | 2000-02-03 | 2011-09-06 | Carl Zeiss Vision Gmbh | Polishing head for a polishing machine |
US7588480B2 (en) | 2000-02-03 | 2009-09-15 | Carl Zeiss Vision Gmbh | Polishing head for a polishing machine |
US20080020691A1 (en) * | 2000-02-03 | 2008-01-24 | Carl Zeiss Vision Gmbh | Polishing head for a polishing machine |
US6625893B2 (en) * | 2000-09-14 | 2003-09-30 | Kabushiki Kaisha Topcon | Template holder |
US20030182813A1 (en) * | 2000-09-14 | 2003-10-02 | Kabushiki Kaisha Topcon | Template holder |
US6964104B2 (en) | 2000-09-14 | 2005-11-15 | Kabushiki Kaisha Topcon | Template holder |
US20050267316A1 (en) * | 2004-05-10 | 2005-12-01 | Paul Knochel | Chiral diphosphinoterpenes and transition metal complexes thereof |
EP1649977A1 (de) * | 2004-10-21 | 2006-04-26 | Carl Zeiss AG | Aufnahmevorrichtung für ein optisches Element |
US7309278B2 (en) * | 2005-04-28 | 2007-12-18 | Nidek Co., Ltd. | Lean presser for holding eyeglass lens and eyeglass lens processing apparatus having the same |
US20060262661A1 (en) * | 2005-04-28 | 2006-11-23 | Nidek Co., Ltd. | Lens presser for holding eyeglass lens and eyeglass lens processing apparatus having the same |
US20180333822A1 (en) * | 2013-07-22 | 2018-11-22 | Canon Kabushiki Kaisha | Component manufacturing method and polishing apparatus |
US10252393B2 (en) * | 2013-07-22 | 2019-04-09 | Canon Kabushiki Kaisha | Component manufacturing method and polishing apparatus |
US10052737B2 (en) * | 2013-07-22 | 2018-08-21 | Canon Kabushiki Kaisha | Component manufacturing method and polishing apparatus |
US20150024663A1 (en) * | 2013-07-22 | 2015-01-22 | Canon Kabushiki Kaisha | Component manufacturing method and polishing apparatus |
JP2015020256A (ja) * | 2013-07-22 | 2015-02-02 | キヤノン株式会社 | 部品の製造方法および研磨装置 |
JP2015020255A (ja) * | 2013-07-22 | 2015-02-02 | キヤノン株式会社 | 部品の製造方法および研磨装置 |
US20160052101A1 (en) * | 2013-10-29 | 2016-02-25 | Olympus Corporation | Lens holding tool |
CN104175191A (zh) * | 2014-08-19 | 2014-12-03 | 江苏双仪光学器材有限公司 | 一种镜片研削连体压力头 |
CN105437055A (zh) * | 2015-12-10 | 2016-03-30 | 中车洛阳机车有限公司 | 一种喷油器支座板的研磨装置 |
CN106541311A (zh) * | 2016-10-13 | 2017-03-29 | 中国航空工业集团公司洛阳电光设备研究所 | 一种楔形组合镜的加工方法 |
CN106541311B (zh) * | 2016-10-13 | 2018-07-13 | 中国航空工业集团公司洛阳电光设备研究所 | 一种楔形组合镜的加工方法 |
WO2018153816A1 (de) * | 2017-02-24 | 2018-08-30 | Schneider Gmbh & Co. Kg | Blockstück zum blocken einer linse |
JP2018047553A (ja) * | 2018-01-09 | 2018-03-29 | キヤノン株式会社 | 部品の製造方法および研磨装置 |
CN108942534A (zh) * | 2018-08-16 | 2018-12-07 | 陶佩林 | 一种防盗井盖自动加工设备 |
US20210101251A1 (en) * | 2019-10-02 | 2021-04-08 | Optikron GmbH | Apparatus and Method for Grinding and/or Polishing Flat Surfaces of Workpieces |
CN111168523A (zh) * | 2020-01-14 | 2020-05-19 | 义乌融鹄电子科技有限公司 | 一种透镜抛光机用压紧抛光机构 |
CN111203778A (zh) * | 2020-01-14 | 2020-05-29 | 义乌融鹄电子科技有限公司 | 一种透镜抛光机用可调压压紧机构 |
CN111958484A (zh) * | 2020-08-18 | 2020-11-20 | 中国科学院光电技术研究所 | 一种内圆柱表面抛光工具 |
Also Published As
Publication number | Publication date |
---|---|
IT995560B (it) | 1975-11-20 |
FR2204990A5 (de) | 1974-05-24 |
DE2252503A1 (de) | 1974-05-09 |
DE2252503B2 (de) | 1975-05-07 |
ES419892A1 (es) | 1976-04-16 |
DE2252503C3 (de) | 1975-12-18 |
GB1429067A (en) | 1976-03-24 |
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