GB1403348A - Machines for edge-trimming and bevelling spectacle lenses - Google Patents
Machines for edge-trimming and bevelling spectacle lensesInfo
- Publication number
- GB1403348A GB1403348A GB2997273A GB2997273A GB1403348A GB 1403348 A GB1403348 A GB 1403348A GB 2997273 A GB2997273 A GB 2997273A GB 2997273 A GB2997273 A GB 2997273A GB 1403348 A GB1403348 A GB 1403348A
- Authority
- GB
- United Kingdom
- Prior art keywords
- support
- lens
- arm
- feeler
- frame
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B33/00—Severing cooled glass
- C03B33/02—Cutting or splitting sheet glass or ribbons; Apparatus or machines therefor
- C03B33/04—Cutting or splitting in curves, especially for making spectacle lenses
-
- 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
- B24B17/00—Special adaptations of machines or devices for grinding controlled by patterns, drawings, magnetic tapes or the like; Accessories therefor
- B24B17/10—Special adaptations of machines or devices for grinding controlled by patterns, drawings, magnetic tapes or the like; Accessories therefor involving electrical transmission means only, e.g. controlled by magnetic tape
-
- 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
- B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
- B24B9/02—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
- B24B9/06—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain
- B24B9/08—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass
- B24B9/14—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass of optical work, e.g. lenses, prisms
- B24B9/144—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass of optical work, e.g. lenses, prisms the spectacles being used as a template
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
- Eyeglasses (AREA)
Abstract
1403348 Grinding edges of lenses R R M ASSELIN and P H L ASSELIN 25 June 1973 [28 June 1972 9 May 1973] 29972/73 Heading B3D A machine for edge-trimming and bevelling spectacle lenses by grinding them to the shape of the bezels of the spectacle frame for which they are intended or a template comprises a frame or template support 1 rotatable relative to a feeler device 16 about an axis perpendicular to the mean plane of the frame bezel or template and synchronously with a likewise rotating lens support 120, and a transmission between the feeler device 16 and lens support 120 that controls grinding of the lens such that the grinding pressure is independent of the pressure between the feeler device and frame. In one embodiment, the machine is in two sections, a section A for determining the shape of the frame and a section B for grinding the lens according to the shape. Section A consists of a frame support 1 having a horizontal baseplate 3 on which the spectacle frame is clamped against a bar 52 movable along guides 53, 54 by a screw 55 by clamping means 56, 57. Each eyepiece of the frame is associated with a driving part 4, 5, the parts being adjustable relative to the platform by screws 45, 46 to positions determined by scales 49, 50. The parts 4, 5 can be selectively engaged by pins 7, Fig. 2, with a sleeve 6 rotatable in bearings 10, 11 in the end of an arm 8 mounted on a vertical pivot 12. The sleeve is formed with a gear 15 meshing with a gear 14 driven by a motor 13. The motor 13 is connected by means 44 for synchronous rotation with a motor 31 connected by gearing 32, 33 to the support 120 for the lens 26 to be ground by a wheel 28, the support holding the lens in a vertical plane and being rotatably carried on the end of an arm 29 movable about a horizontal pivot 30, a weight 34 determining the pressure between the lens and wheel. The feeler device consists of a feeler 16 on the end of a vertical rod 17 which extends through sleeve 6 and is carried by a horizontal rod 20 slidable through a support 21 by a hand lever 22 which controls the position of the feeler by abutment of an annular stop 23 against the support 21. The arm 9 is thereby positioned by a spring 24 engaging the spectacle frame with the feeler 16 which is adjustable by a micrometer screw 25. In use, when the stop 23 engages the support 21, a contact 40 is operated to energize motor 13 to rotate the frame and motor 31 to rotate the lens support. Movement ofthe arm 9 actuates a displacement detector 41 connected by a transmission 43 having an amplifier to drive means 38 for moving an arm 36 about a pivot 37 the arm having an adjustable abutment 35 for moving the arm 29 carrying the lens support about the pivot 30. The transmission 43 may consist of mechanical, hydraulic, optical, magnetic, electric or photo-electric means and may at the same time, drive a section B<SP>1</SP> identical to section B. After the lens for one eyepiece has been ground, the part 4 of the support is engaged with sleeve 6 for grinding of the lens for the second eyepiece. A second support 1 may be provided so that while one frame is being used in a first support, a second can be mounted in the second support. The information from the displacement detector may be stored on tape for controlling the lens supporting arm at a later stage. In other arrangements, the spectacle frame is replaced by a template which is abutted by a feeler head, or a sheet on which is inscribed the lens contour and the contour is sensed by a magnetic or optical detector. In the latter case, the arm 9 may remain stationary and the detector is movable, the movements being transmitted to the arm 29 carrying the lens support. In order to compensate for movement of the contact point 71, Fig. 7, from the line 72 joining the centres of the lens 74 and wheel 73, the feeler 16 may be mounted on an arm 78 to have a corresponding movement. In another embodiment, proximity detectors sense the position of the arm 58 to correct the position of arm 29. In a further embodiment, the feeler point 16 is flanked by auxiliary feelers 85, Fig. 13A, the movements of which are transmitted to a beam 92 movement of which varies the amount of light between a source and photoelectric cells, the outputs of which are connected in a differential configuration in order to effect movement of arm 78 and the feeler 16. Switchable resistors 111, Fig. 1, in the transmission between arms 9 and 29 determine the type of finish desired and potentiometer 112 provide continuous fine adjustment to compensate for wear of the grinding wheel.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7223305A FR2191453A5 (en) | 1972-06-28 | 1972-06-28 | |
FR7316695A FR2229213A6 (en) | 1973-05-09 | 1973-05-09 | Optical lense grinder - with copying mechanism for spectacle rim |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1403348A true GB1403348A (en) | 1975-08-28 |
Family
ID=26217186
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2997273A Expired GB1403348A (en) | 1972-06-28 | 1973-06-25 | Machines for edge-trimming and bevelling spectacle lenses |
Country Status (6)
Country | Link |
---|---|
US (1) | US3899851A (en) |
JP (1) | JPS4957473A (en) |
CA (1) | CA981907A (en) |
DE (1) | DE2332001C3 (en) |
GB (1) | GB1403348A (en) |
IT (1) | IT992591B (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2117287A (en) * | 1981-10-07 | 1983-10-12 | Victor Freeman | Lens edge grinding machine |
GB2140719A (en) * | 1983-05-06 | 1984-12-05 | Otto Helbrecht | Lens grinding machine |
EP0236182A1 (en) * | 1986-01-30 | 1987-09-09 | Kabushiki Kaisha TOPCON | Lens grinding method and apparatus |
GB2194053A (en) * | 1986-08-14 | 1988-02-24 | Gerber Scient Products Inc | Apparatus for tracing the lens opening in an eyeglass frame |
GB2194909A (en) * | 1986-08-14 | 1988-03-23 | Gerber Scient Products Inc | Optical lens pattern making |
GB2195278A (en) * | 1986-08-04 | 1988-04-07 | Gerber Scient Products Inc | Making a pattern for a lens opening in an eyeglass frame |
DE4128571C2 (en) * | 1990-08-28 | 2000-08-31 | Nidek Kk | Spectacle frame scanner |
Families Citing this family (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4027434A (en) * | 1973-05-29 | 1977-06-07 | Coburn Optical Industries, Inc. | Edging apparatus for ophthalmic lens |
FR2297115A1 (en) * | 1975-01-10 | 1976-08-06 | Essilor Int | PROBE FOR CONTOUR READING DEVICE, CONTOUR READING DEVICE EQUIPPED WITH SUCH A PROBE AND APPLICATIONS |
JPS52124290A (en) * | 1976-04-13 | 1977-10-19 | Koken Kk | Lens processing machine provided with device for removing interference of grinding wheel |
JPS5345791A (en) * | 1976-10-07 | 1978-04-24 | Koken Kk | Lens working machine provided with device for removing interference of grind stone |
JPS5639858A (en) * | 1979-09-07 | 1981-04-15 | Aichi Steel Works Ltd | Grinder for end face of steel |
US4300317A (en) * | 1980-01-10 | 1981-11-17 | American Optical Corporation | Method of fitting ophthalmic lenses in spectacles frames |
DE3105100C2 (en) * | 1981-02-12 | 1984-04-12 | Hoya Lens Corp., Tokyo | Machine for grinding a groove in the peripheral surface of an out-of-round spectacle lens |
JPS57158829A (en) * | 1981-03-27 | 1982-09-30 | Hoya Corp | Production of glasses |
FR2543039B1 (en) * | 1983-03-22 | 1985-08-09 | Essilor Int | METHOD FOR BEVELING AN OPHTHALMIC LENS, AND CORRESPONDING AUTOMATIC GRINDING MACHINE |
JPS60150957A (en) * | 1984-01-14 | 1985-08-08 | Koken:Kk | Lens grinding machine |
LU85494A1 (en) * | 1984-08-10 | 1986-03-11 | Henri Snackers | METHOD AND APPARATUS FOR FACILITATING GRINDING OF GLASS GLASSES |
FR2570973B1 (en) * | 1984-10-03 | 1987-01-09 | Briot Int | IMPROVEMENTS IN MACHINES FOR GRINDING GLASSES. |
FR2573225B1 (en) * | 1984-11-09 | 1987-02-06 | Briot Int | METHOD AND DEVICE FOR STABILIZING THE GRINDING SPEED OF THE PERIPHERAL OF GLASSES ON A MACHINE COMPRISING A COPIER |
JPH0690026B2 (en) * | 1986-01-21 | 1994-11-14 | 株式会社ニコン | Eyeglass frame rim measuring device |
JPH06100457B2 (en) * | 1986-03-18 | 1994-12-12 | 株式会社ニコン | Eyeglass frame lens shape measuring device |
DE8608291U1 (en) * | 1986-03-26 | 1986-05-07 | Wernicke & Co GmbH, 4000 Düsseldorf | Sensing device for scanning the contour of spectacle frame openings |
JPH02198755A (en) * | 1989-12-28 | 1990-08-07 | Topcon Corp | Grinding device for lens |
JP2925685B2 (en) * | 1990-08-02 | 1999-07-28 | 株式会社ニデック | Frame shape measuring device |
JPH07100290B2 (en) * | 1992-03-16 | 1995-11-01 | 株式会社トプコン | Lens grinding apparatus and lens grinding method |
JPH0815706B2 (en) * | 1992-07-27 | 1996-02-21 | 株式会社トプコン | Lens frame shape measuring device |
FR2717413B1 (en) * | 1994-03-15 | 1996-05-15 | Essilor Int | Method for determining the restitution error of an overflow machine with which a contour reading device is associated, and application to the self-calibration of the assembly. |
DE19616536C2 (en) * | 1996-04-25 | 2000-01-27 | Wernicke & Co Gmbh | Process and eyeglass lens grinding machine for shaping the peripheral edge of eyeglass lenses and possibly for subsequent facet grinding |
JPH09174408A (en) * | 1997-01-31 | 1997-07-08 | Topcon Corp | Frame shape measuring device |
JP3730409B2 (en) * | 1998-05-29 | 2006-01-05 | 株式会社ニデック | Eyeglass lens processing equipment |
US6315642B1 (en) * | 2000-04-13 | 2001-11-13 | Briot International | Method and apparatus for the tracing of spectacle frames, and corresponding grinding machine |
FR2892332B1 (en) * | 2005-10-20 | 2008-02-01 | Briot Internat Sa | APPARATUS FOR PALAPING A GLASSES FRAME AND ASSOCIATED GRINDING MACHINE |
CN109333224B (en) * | 2018-10-15 | 2020-05-19 | 湖北宏旭伟业电子科技有限公司 | Display screen edge grinding machine for processing mobile phone display screen |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3170374A (en) * | 1962-04-26 | 1965-02-23 | Russell M Malamut | Apparatus for producing lens patterns from spectacle frame lens openings |
US3461619A (en) * | 1966-05-10 | 1969-08-19 | Textron Inc | Edge-grinding machine for lenses |
US3555739A (en) * | 1968-09-16 | 1971-01-19 | Ezra H Novak | Machine for shaping, sizing and finishing the edge of a lens blank |
US3672855A (en) * | 1970-11-30 | 1972-06-27 | Charles R Bright | Glass lens edging apparatus |
US3807098A (en) * | 1972-06-14 | 1974-04-30 | Sundstrand Syracuse | Plural grinding stations with master controller |
US3786600A (en) * | 1972-10-02 | 1974-01-22 | Lemay A Co Inc | Contour grinder |
-
1973
- 1973-06-23 DE DE2332001A patent/DE2332001C3/en not_active Expired
- 1973-06-25 GB GB2997273A patent/GB1403348A/en not_active Expired
- 1973-06-25 US US372996A patent/US3899851A/en not_active Expired - Lifetime
- 1973-06-27 CA CA175,038A patent/CA981907A/en not_active Expired
- 1973-06-27 IT IT25928/73A patent/IT992591B/en active
- 1973-06-27 JP JP48071837A patent/JPS4957473A/ja active Pending
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2117287A (en) * | 1981-10-07 | 1983-10-12 | Victor Freeman | Lens edge grinding machine |
GB2140719A (en) * | 1983-05-06 | 1984-12-05 | Otto Helbrecht | Lens grinding machine |
GB2183184A (en) * | 1983-05-06 | 1987-06-03 | Otto Helbrecht | Lens grinding machine |
EP0236182A1 (en) * | 1986-01-30 | 1987-09-09 | Kabushiki Kaisha TOPCON | Lens grinding method and apparatus |
GB2195278A (en) * | 1986-08-04 | 1988-04-07 | Gerber Scient Products Inc | Making a pattern for a lens opening in an eyeglass frame |
GB2195278B (en) * | 1986-08-04 | 1990-11-21 | Gerber Scient Products Inc | Method and apparatus for making a pattern for a lens opening in an eyeglass frame |
GB2194053A (en) * | 1986-08-14 | 1988-02-24 | Gerber Scient Products Inc | Apparatus for tracing the lens opening in an eyeglass frame |
GB2194909A (en) * | 1986-08-14 | 1988-03-23 | Gerber Scient Products Inc | Optical lens pattern making |
GB2194909B (en) * | 1986-08-14 | 1991-01-09 | Gerber Scient Products Inc | Optical lens pattern making system and method |
GB2194053B (en) * | 1986-08-14 | 1991-04-24 | Gerber Scient Products Inc | Apparatus for tracing a lens opening in an eyeglass frame |
DE4128571C2 (en) * | 1990-08-28 | 2000-08-31 | Nidek Kk | Spectacle frame scanner |
Also Published As
Publication number | Publication date |
---|---|
CA981907A (en) | 1976-01-20 |
IT992591B (en) | 1975-09-30 |
US3899851A (en) | 1975-08-19 |
DE2332001C3 (en) | 1980-07-10 |
DE2332001B2 (en) | 1979-10-25 |
DE2332001A1 (en) | 1974-01-17 |
JPS4957473A (en) | 1974-06-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1403348A (en) | Machines for edge-trimming and bevelling spectacle lenses | |
US3079731A (en) | Generation of shaped surfaces | |
US4945684A (en) | Method of and apparatus for processing peripheral edge of lens for spectacles | |
US4829715A (en) | Machines for grinding and bevelling ophthalmic glasses | |
US6088924A (en) | Machine for grinding a cylindrical piece in orbital motion | |
JPS6052249A (en) | Grinder for edge end of eyeglass lens | |
GB1450710A (en) | Machine for producing aspherical surfaces | |
US2747339A (en) | Lens grinding machine | |
GB2148159A (en) | Process and apparatus for bevelling or grooving ophthalmic lenses | |
US4653233A (en) | Machine for grinding of toric surfaces on optic lenses | |
US4136489A (en) | Grinding and polishing machine | |
US4075791A (en) | Automatic copying belt grinding machine | |
US3399496A (en) | Machine for generating toric surfaces | |
US2348858A (en) | Combined axiometer and bifocal lens segment locater | |
US2932135A (en) | Machine for sharpening four-face drills | |
JP2771547B2 (en) | Eyeglass lens peripheral edge chamfering device | |
US2827699A (en) | Apparatus for the repeated settings of one or several movable machine parts, such asthe work-tables of machine tools | |
US3834089A (en) | Monowheel plastic lens edger | |
GB1215341A (en) | Improved tracer | |
US3886692A (en) | Machines for trimming and bevelling ophtalmic lenses | |
US4027434A (en) | Edging apparatus for ophthalmic lens | |
GB1585152A (en) | Method and apparatus for profiling a grinding wheel | |
US2652664A (en) | Operator-controlled grinding machine with optical comparator | |
JPS61156022A (en) | Automatic spectacle lens grinder | |
JP2612285B2 (en) | Lens grinding method and apparatus therefor |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PE20 | Patent expired after termination of 20 years |
Effective date: 19930624 |