US20030190875A1 - Fiber optic ferrule polishing device - Google Patents
Fiber optic ferrule polishing device Download PDFInfo
- Publication number
- US20030190875A1 US20030190875A1 US10/116,278 US11627802A US2003190875A1 US 20030190875 A1 US20030190875 A1 US 20030190875A1 US 11627802 A US11627802 A US 11627802A US 2003190875 A1 US2003190875 A1 US 2003190875A1
- Authority
- US
- United States
- Prior art keywords
- ferrule
- recess
- disk
- holding recess
- polishing surface
- 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.)
- Abandoned
Links
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/25—Preparing the ends of light guides for coupling, e.g. cutting
-
- 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
- B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
- B24B19/22—Single-purpose machines or devices for particular grinding operations not covered by any other main group characterised by a special design with respect to properties of the material of non-metallic articles to be ground
- B24B19/226—Single-purpose machines or devices for particular grinding operations not covered by any other main group characterised by a special design with respect to properties of the material of non-metallic articles to be ground of the ends of optical fibres
-
- 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
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
- B24B41/061—Work supports, e.g. adjustable steadies axially supporting turning workpieces, e.g. magnetically, pneumatically
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/3833—Details of mounting fibres in ferrules; Assembly methods; Manufacture
- G02B6/3863—Details of mounting fibres in ferrules; Assembly methods; Manufacture fabricated by using polishing techniques
Definitions
- the invention relates to a polishing device and, more particularly, to a device for polishing fiber optic ferrules.
- Fiber optic connectors typically consist of a ferrule having a fiber optic cable comprising an optical fiber encompassed by a buffer extending therethrough.
- the ferrule has a substantially flat end face through which projecting segments of the optical fiber are inserted and bonded by an adhesive.
- the projecting segments of the optical fiber are polished flush with the surface of the end face of the ferrule.
- the surface of the end face is rough polished to remove the projecting segments.
- the surface of the end face is final polished to remove processing strain layers or any other surface irregularities.
- Each of the ring areas is formed of an elastic film to which an abrasive liquid is applied during rotation.
- the abrasive liquid is varied in each section in order to achieve either a rough or fine polishing.
- a plurality of partition rings are each disposed between the each ring section to prevent the abrasive liquids from mixing with each other.
- This device requires the injection of several abrasive liquids and containment of these various abrasives over various ring areas to achieve either the rough or final polishing desired at that specific ring area. These abrasive liquids are costly and the consumables of the process further add to process costs. Further, this device does not have a continuos abrasive surface to allow a single pass polishing of the end face.
- the invention relates to a fiber optic ferrule polishing devise comprising a disk, a plurality of rings and a ferrule holder.
- the disk having an outer periphery and a center.
- the plurality of rings each having a polishing surface coated with varying degrees of abrasive and an attachment surface.
- the attachment surface is attached to the disk such that the courseness of abrasive on the rings decreases from the outer periphery to the center.
- the ferrule holder has a ferrule holding recess substantially adjacent to the polishing surface and an attachment arm pivotally attached to the ferrule holder such that the arm is positioned substantially adjacent to the ferrule holding recess.
- the attachment arm biases the fiber optic ferrule toward the disk polishing surface when a fiber optic ferrule is received in the ferrule holding recess.
- FIG. 1 is an isometric view of the fiber optic ferrule polishing device.
- FIG. 2 is a schematic view of the attachment of the rings to the disk.
- FIG. 3 is a partially-sectioned exploded view of the rings attached to the disk taken along line 3 - 3 in FIG. 1.
- FIG. 4 is a partial isometric view of the ferrule holder and the rings.
- FIG. 5 is a top cross-sectional view of the fixture assembly taken along line 5 - 5 in FIG. 4.
- FIG. 1 shows a fiber optic ferrule polishing device 10 comprising a polishing assembly 20 and a fixture assembly 60 attached to a base 12 .
- the polishing assembly 20 comprises an axially preloaded spindle motor 22 having a spindle 30 extending therefrom that is received in a hub 36 .
- the hub 36 has an attached polishing surface 52 comprising a plurality of rings 50 .
- a shroud 210 is positioned about the hub 36 and the attached polishing surface 52 .
- the fixture assembly 60 comprises a fiber optic ferrule holder 100 attached to a mounting plate 212 that is attached to a mounting structure 76 .
- the ferrule holder 100 has a water injecting recess 102 , a ferrule holding recess 105 and an attached holding arm 226 .
- the mounting structure 76 is moveably mounted on a slide base 62 and has a threaded shaft 78 extending therefrom that is received in a motor 80 .
- a linear slide motor assembly may be used instead of the threaded shaft 78 and motor 80 .
- the axially preloaded spindle motor 22 is contained in a housing 24 .
- a supporting structure 32 extends from a bottom surface 34 of the housing 24 and is attached to a top surface 14 of the base 12 .
- a first end 26 of the spindle 30 extends substantially parallel to the base 12 from a front surface 90 of the housing 24 .
- a second end 28 of the spindle 30 is received in the hub 36 .
- the hub 36 is made out of a material such as steel, aluminum, or other materials having similar properties and comprises a mating portion 38 and a disk 40 .
- the mating portion 38 is substantially cylindrical in shape and is dimensioned for receipt of the second end 28 of the spindle 30 .
- the disk 40 has a front side 42 and a back side 44 .
- a plurality of securing apertures 46 extends through the disk 40 from the front side 42 to the back side 44 .
- the securing apertures 46 are positioned radially from the disk center 92 to the disk outer periphery 94 . Attached to the front side 42 of the disk is a plurality of rings 50 .
- Each ring 50 is preferably made out of a magnetic material such as steel and has an attachment surface 54 and a polishing surface 52 .
- a magnetic material facilitates manufacturing in that the rings 50 can be magnetically retained during a grinding operation.
- the attachment surface 54 has a plurality of threaded ring apertures 56 that correspond to the securing apertures 46 on the back side 44 of the disk 40 .
- the ring apertures 56 are positioned on the attachment surface 54 and do not extend through to the polishing surface 52 of the rings 50 .
- Each ring 50 is formed to slip fit into each other.
- Cap screws 16 or other suitable fastening means are positioned in the securing apertures 46 on the back side 44 of the disk 40 .
- the cap screws 16 extend through the front side 42 of the disk 40 and are received into the threaded ring apertures 56 of the attachment surface 54 .
- each of the rings 50 is coated with diamond grit 58 or other suitable abrasive such as man made diamond grit, ceramic, or carborundum.
- the diamond grit 58 or other suitable abrasive has a different size and number of particles disposed per unit area on each ring 50 .
- the ring 50 located at the disk outer periphery 94 is coated with the coarsest abrasive. Moving inward from the disk outer periphery 94 toward the disk center 92 , each ring is progressively less coarse and protrudes further outward from the hub 36 wherein the ring located at the disk center 92 is coated with the finest abrasive and protrudes farthest from the hub 36 .
- the shroud 210 has a shroud first side 220 , a shroud second 218 side, a shroud top 222 and a shroud bottom 224 .
- the shroud bottom 224 is positioned adjacent to the top surface 14 of the base 12 .
- the shroud first side 220 is positioned substantially parallel to the polishing surface 52 .
- the shroud first side 220 has a slot 110 that extends substantially parallel and adjacent to the polishing surface 52 from substantially near the disk outer periphery 92 to substantially near the disk center 94 .
- the shroud second side 218 is positioned substantially parallel to the disk 40 .
- the shroud second side 218 has an opening (not shown) substantially adjacent to the mating portion 38 of the hub 36 . It will be appreciated by those skilled in the art that the shroud 210 can take a variety of shapes and forms to achieve a substantially similar result.
- the slide base 62 is a substantially flat elongated member having a plate top surface 64 , a plate bottom surface 66 , and first and second plate ends 68 , 70 , respectively.
- the plate bottom surface 66 is positioned adjacent to and is attached to the top surface 14 of the base 12 .
- a first plate wall 72 extends substantially perpendicular and adjacent to the first plate end 68 .
- a second plate wall 74 extends substantially perpendicular and adjacent to the second plate end 70 .
- the mounting structure 76 Positioned adjacent to the plate top surface 64 is the mounting structure 76 .
- the mounting structure 76 is substantially rectangular in shape and has a mounting structure bottom surface 88 , and a mounting structure top surface 84 .
- the mounting structure bottom surface 88 is attached to the plate top surface 64 .
- a first portion 82 of a threaded shaft 78 extends through a side 98 of the mounting structure 76 and is positioned substantially parallel to the slide base 62 .
- a second portion 86 of the threaded shaft 78 extends through a wall aperture (not shown) in the second plate wall 74 and is received in a motor 80 .
- the mounting plate 212 Positioned adjacent to the mounting structure 76 is the mounting plate 212 .
- the mounting plate 212 is substantially rectangular in shape and has a mounting plate top surface 214 and a mounting plate bottom surface 216 .
- the mounting plate bottom surface 216 is attached to the mounting structure top surface 84 .
- the mounting plate top surface 21 has mounting plate apertures (not shown).
- the mounting plate 212 is movable toward and away from the polishing surface 52 by a threaded shaft 97 extending therethough.
- the threaded shaft is optionally driven by a motor 96 or manually driven.
- a positional indicator 99 is provided to indicate travel in the direction toward and away from the polishing surface 52 .
- the ferrule holder 100 Positioned adjacent to the mounting plate 212 is a ferrule holder 100 . As shown in FIG. 4, the ferrule holder 100 has a polishing end 103 , a receiving end 105 , a holder top surface 106 , a holder bottom surface 108 , and holder first and second sides, 118 , 120 , respectively.
- the holder bottom surface 108 is positioned adjacent to the mounting plate top surface 214 .
- the polishing end 103 of the ferrule holder 100 extends beyond the mounting plate top surface 214 and is positioned substantially adjacent to the polishing surface 52 of the rings 50 .
- the receiving end 104 of the ferrule holder 100 has an attachment member 109 .
- the attachment member has an attachment member aperture (not shown).
- a bolt 112 or other suitable fastening means extends through the attachment member aperture and into the mounting plate aperture (not shown).
- Substantially near the holder top surface 106 is a ferrule holding recess 105 . As shown in FIG. 5, the ferrule holding recess 105 is positioned toward the holder first side 118 and extends from the polishing end 103 through to the receiving end 105 of the ferrule holder 100 . Substantially near the holder top surface 106 is also a water injecting recess 102 . The water injecting recess 102 is positioned toward the holder second side 120 and has a first portion 114 and a second portion 116 . The first portion 114 extends substantially parallel to the ferrule holding recess 105 from the polishing end 103 to substantially near the receiving end 105 .
- the second portion 116 extends substantially perpendicular to the ferrule holding recess 105 from the end of the first portion 114 substantially near the receiving end 114 to the holder second side 120 .
- Ferrule holder apertures 124 extend substantially parallel to and flank the water injecting recess 102 and the ferrule holding recess 105 . It will be appreciated by those skilled in the art that while the water injecting recess 102 is positioned toward the holder second side 120 and the ferrule holding recess 105 is positioned toward the holder first side 118 , the positions may be interchanged or varied to achieve substantially similar results.
- a holding plate 122 is positioned adjacent to the polishing end 103 of the ferrule holder 100 .
- the holding plate 122 has a holding plate first side 125 positioned adjacent to the polishing end 103 and a holding plate second side 127 positioned substantially parallel to the polishing surface 52 .
- the holding plate 122 has a ferrule end face receiving recess 126 extending from the holding plate first side 125 through to the holding plate second side 127 .
- the ferrule end face receiving recess 126 has a slightly smaller diameter than the ferrule holding recess 105 and is positioned adjacent to the ferrule holding recess 105 .
- a water ejecting recess 128 is positioned substantially parallel to the ferrule end face holding recess 126 and extends from the holding plate first side 125 through to the holding plate second side 127 .
- the water ejecting recess 128 is positioned adjacent to the first portion 114 of the water injecting recess 102 .
- Holding plate apertures 130 flank the ferrule end face receiving recess 126 and the water ejecting recess 128 and are positioned adjacent to the ferrule holder apertures 124 .
- Bolts 132 or other suitable fastening means extend from the holding plate first side 125 through the holding plate apertures 130 and into the ferrule holder apertures 124 .
- a holding arm 226 is positioned adjacent to the holder top surface 106 substantially above the ferrule holding recess 105 and substantially near the holder first side 118 .
- the holding arm 226 has an arm 140 and first and second arm mounts 148 , 150 , respectively.
- the first arm mount 148 and second arm mount 150 are positioned substantially perpendicular to the holder top surface 106 and substantially parallel to each other.
- a spring 228 extends substantially perpendicular to and between the first and second arm mounts 148 , 150 .
- the arm 140 has a first flange 134 and a second flange 136 positioned at an arm top end 139 .
- the first flange 134 is positioned toward the holder first side 118 and extends adjacent to the first arm mount 148 .
- a first tip end 147 of the first flange 134 is pivotally attached to the first arm mount 148 .
- the second flange 136 is positioned toward the holder second side 120 and extends adjacent to the second arm mount 150 .
- a second tip end 146 of the second flange 136 is pivotally attached to the second arm mount 150 .
- Substantially centered at an arm bottom end 138 is a cable receiving recess 132 .
- the cable receiving recess 132 is positioned substantially parallel to the ferrule holding recess 1 S and extends from the arm bottom end 138 toward the arm top end 139 to form first and second legs 230 , 232 , respectively.
- FIG. 5 shows a fiber optic cable connector 200 comprising a fiber optic cable 152 and a ferrule assembly 154 .
- the fiber optic cable 152 has a central optical fiber 202 that is surrounded by a buffer 204 encompassed with a flexible jacket 206 .
- the ferrule assembly 154 comprises a ferrule 160 having an outer surface 172 and an inner surface 174 . Moving from the front end 156 of the ferrule assembly 154 toward the rear end 158 , the ferrule 160 has a first section 162 having an end face 164 . Adjacent the first section 162 of the ferrule 160 and opposite of the end face 164 is a second section 166 .
- the second section 166 has a shoulder 168 having a diameter slightly larger than the diameter of the first section 162 .
- the outer surface 172 of the second section 166 has a plurality of raised portions 170 and recessed portions 176 .
- Adjacent the second section 166 of the ferrule 160 and opposite of the shoulder 168 is a first holding portion 178 .
- the first holding portion 178 has first holding portion first and second flanges 180 , 182 that extend from a first base portion 184 and substantially converge adjacent to the second section 166 .
- Adjacent the first holding portion 178 is a second holding portion 186 .
- the second holding portion 186 has second holding portion first and second flanges 188 , 190 that extend from a second base portion 192 and substantially converge adjacent to the first base portion 184 . Adjacent the second base portion 192 is a resilient ferrule spring 194 .
- the fiber optic cable 152 is disposed in the ferrule assembly 154 such that a projecting segment 208 of the optical fiber 202 projects from the ferrule 160 end face 164 .
- the fiber optic cable connector 200 is positioned in the ferrule holding recess 105 by pivoting the holding arm 226 away from the ferrule holding recess 105 .
- the ferrule 160 end face 164 is received in the ferrule holder 100 ferrule holding recess 105 .
- the end face 164 is inserted into the ferrule holding recess 105 until it is received in the ferrule end face receiving recess 126 and projects from the holding plate second side 127 .
- the holding arm 226 is then pivoted to its initial position adjacent to the ferrule holder 100 receiving end 104 .
- the fiber optic cable 152 is received in the cable receiving recess 132 between the first and second legs 230 , 232 .
- the resiliency of the spring 228 biases the legs 230 , 232 toward the receiving end 104 and against the ferrule spring 194 projecting from the ferrule receiving recess 105 .
- the ferrule spring 194 then biases the fiber optic cable connector 150 toward the holding plate second side 127 until the shoulder 168 of the ferrule 160 engages to the holding plate first side 125 .
- the fixture assembly 60 is positioned substantially adjacent to the disk outer periphery 94 such that the end face 164 and the projecting segment 208 of the optical fiber 202 are positioned within the slot 110 .
- the fixture assembly 60 is then moved toward the polishing surface 52 by the motor 96 and shaft 97 operating on the mounting plate 212 such that the fiber end face and ferrule contact the polishing surface 52 .
- the positional indicator 99 is used to determine the amount of material which is to be removed from the ferrule and fiber end face.
- the motor 80 drives the threaded shaft 78 causing the mounting structure 76 to move adjacent to the plate top surface 64 and parallel to the polishing surface 52 from the disk outer periphery 94 to the disk center 92 .
- water having a pH between 7 and 8 exhibits favorable results in that it acts as a wetting agent without unduly etching the glass of the fiber end being polishing.
- soap and anti-foaming agents may be added to the water to keep the polishing surface 52 clear of material which was removed from the ferrule and fiber end face.
- the end face 164 and projecting segment 208 contact the rotating polishing surface 52 of the ring 50 positioned at the disk outer periphery 94 having the coarsest abrasive.
- the end face 164 moves toward the finest ring 50 to achieve a finely polished fiber optic ferrule 160 end face 164 in a single pass polishing.
Abstract
A fiber optic ferrule polishing devise comprising a disk having an outer periphery and a center. Rings having a polishing surface coated with varying degrees of abrasive and attached to the disk such that the courseness of abrasive on the rings decreases from the outer periphery to the center. A ferrule holder having a ferrule holding recess adjacent to the polishing surface, a water injecting recess and an attachment arm pivotally attached to the ferrule holder such that the arm is positioned adjacent to the ferrule holding recess. A holding plate having a ferrule end face receiving recess having a smaller diameter than the ferrule holding recess and positioned adjacent to the ferrule holding recess and polishing surface. A mounting plate for mounting the ferrule holder a predetermined distance from the polishing surface. The arm biases a ferrule toward the polishing surface when a ferrule is received in the ferrule holding recess.
Description
- The invention relates to a polishing device and, more particularly, to a device for polishing fiber optic ferrules.
- Fiber optic connectors typically consist of a ferrule having a fiber optic cable comprising an optical fiber encompassed by a buffer extending therethrough. The ferrule has a substantially flat end face through which projecting segments of the optical fiber are inserted and bonded by an adhesive. To prepare the ferrule for connection, the projecting segments of the optical fiber are polished flush with the surface of the end face of the ferrule. First, the surface of the end face is rough polished to remove the projecting segments. Then, the surface of the end face is final polished to remove processing strain layers or any other surface irregularities.
- Because the polishing is required to be done with high precision in order to insure an optimal optical connection between two abutting end face surfaces, it is known to secure the ferrule in a fixture and position the end face against a grinding or polishing wheel. One such ferrule polishing device is disclosed in U.S. Pat. No. 5,503,590 issued to Saitoh et al. Saitoh et al. teaches an elastic film polishing plate for a fiber optic connector having an adhesive removing ring area along an outer area of a polishing wheel. A rough polishing ring area is disposed inward of the adhesive removing ring area, and a final polishing ring area is located concentrically on the polishing wheel. Each of the ring areas is formed of an elastic film to which an abrasive liquid is applied during rotation. The abrasive liquid is varied in each section in order to achieve either a rough or fine polishing. A plurality of partition rings are each disposed between the each ring section to prevent the abrasive liquids from mixing with each other. This device requires the injection of several abrasive liquids and containment of these various abrasives over various ring areas to achieve either the rough or final polishing desired at that specific ring area. These abrasive liquids are costly and the consumables of the process further add to process costs. Further, this device does not have a continuos abrasive surface to allow a single pass polishing of the end face.
- It is therefore desirable to develop a fiber optic ferrule polishing device that is less intricate reduces the consumables cost and has a continuous abrasion surface to allow single pass polishing of a ferrule end face and efficient manufacturing of the ferrule.
- The invention relates to a fiber optic ferrule polishing devise comprising a disk, a plurality of rings and a ferrule holder. The disk having an outer periphery and a center. The plurality of rings each having a polishing surface coated with varying degrees of abrasive and an attachment surface. The attachment surface is attached to the disk such that the courseness of abrasive on the rings decreases from the outer periphery to the center. The ferrule holder has a ferrule holding recess substantially adjacent to the polishing surface and an attachment arm pivotally attached to the ferrule holder such that the arm is positioned substantially adjacent to the ferrule holding recess. The attachment arm biases the fiber optic ferrule toward the disk polishing surface when a fiber optic ferrule is received in the ferrule holding recess.
- The invention will now be described by way of example with reference to the accompanying figures in which:
- FIG. 1 is an isometric view of the fiber optic ferrule polishing device.
- FIG. 2 is a schematic view of the attachment of the rings to the disk.
- FIG. 3 is a partially-sectioned exploded view of the rings attached to the disk taken along line3-3 in FIG. 1.
- FIG. 4 is a partial isometric view of the ferrule holder and the rings.
- FIG. 5 is a top cross-sectional view of the fixture assembly taken along line5-5 in FIG. 4.
- FIG. 1 shows a fiber optic
ferrule polishing device 10 comprising apolishing assembly 20 and afixture assembly 60 attached to abase 12. Thepolishing assembly 20 comprises an axially preloadedspindle motor 22 having aspindle 30 extending therefrom that is received in ahub 36. Thehub 36 has an attachedpolishing surface 52 comprising a plurality ofrings 50. Ashroud 210 is positioned about thehub 36 and the attachedpolishing surface 52. Thefixture assembly 60 comprises a fiberoptic ferrule holder 100 attached to amounting plate 212 that is attached to amounting structure 76. Theferrule holder 100 has a water injectingrecess 102, aferrule holding recess 105 and an attachedholding arm 226. Themounting structure 76 is moveably mounted on aslide base 62 and has a threadedshaft 78 extending therefrom that is received in amotor 80. Alternatively, a linear slide motor assembly may be used instead of the threadedshaft 78 andmotor 80. - The main components of the fiber optic
ferrule polishing device 10 will now be described in greater detail beginning with thepolishing assembly 20 as shown in FIGS. 1 through 3. Referring to FIG. 1, the axially preloadedspindle motor 22 is contained in ahousing 24. A supportingstructure 32 extends from abottom surface 34 of thehousing 24 and is attached to atop surface 14 of thebase 12. Afirst end 26 of thespindle 30 extends substantially parallel to thebase 12 from afront surface 90 of thehousing 24. Asecond end 28 of thespindle 30 is received in thehub 36. - Shown in FIGS. 2 and 3, the
hub 36 is made out of a material such as steel, aluminum, or other materials having similar properties and comprises amating portion 38 and adisk 40. Themating portion 38 is substantially cylindrical in shape and is dimensioned for receipt of thesecond end 28 of thespindle 30. Thedisk 40 has afront side 42 and aback side 44. A plurality of securingapertures 46 extends through thedisk 40 from thefront side 42 to theback side 44. Thesecuring apertures 46 are positioned radially from thedisk center 92 to the diskouter periphery 94. Attached to thefront side 42 of the disk is a plurality ofrings 50. Eachring 50 is preferably made out of a magnetic material such as steel and has anattachment surface 54 and apolishing surface 52. A magnetic material facilitates manufacturing in that therings 50 can be magnetically retained during a grinding operation. Theattachment surface 54 has a plurality of threadedring apertures 56 that correspond to thesecuring apertures 46 on theback side 44 of thedisk 40. Thering apertures 56 are positioned on theattachment surface 54 and do not extend through to thepolishing surface 52 of therings 50. Eachring 50 is formed to slip fit into each other.Cap screws 16 or other suitable fastening means are positioned in thesecuring apertures 46 on theback side 44 of thedisk 40. Thecap screws 16 extend through thefront side 42 of thedisk 40 and are received into the threadedring apertures 56 of theattachment surface 54. - The
polishing surface 52 of each of therings 50 is coated withdiamond grit 58 or other suitable abrasive such as man made diamond grit, ceramic, or carborundum. Thediamond grit 58 or other suitable abrasive has a different size and number of particles disposed per unit area on eachring 50. Thering 50 located at the diskouter periphery 94 is coated with the coarsest abrasive. Moving inward from the diskouter periphery 94 toward thedisk center 92, each ring is progressively less coarse and protrudes further outward from thehub 36 wherein the ring located at thedisk center 92 is coated with the finest abrasive and protrudes farthest from thehub 36. - As shown in FIG. 1, the
shroud 210 has a shroudfirst side 220, ashroud second 218 side, ashroud top 222 and ashroud bottom 224. Theshroud bottom 224 is positioned adjacent to thetop surface 14 of thebase 12. The shroudfirst side 220 is positioned substantially parallel to the polishingsurface 52. The shroudfirst side 220 has aslot 110 that extends substantially parallel and adjacent to the polishingsurface 52 from substantially near the diskouter periphery 92 to substantially near thedisk center 94. The shroudsecond side 218 is positioned substantially parallel to thedisk 40. The shroudsecond side 218 has an opening (not shown) substantially adjacent to themating portion 38 of thehub 36. It will be appreciated by those skilled in the art that theshroud 210 can take a variety of shapes and forms to achieve a substantially similar result. - The main components of the
fixture assembly 60 will now be described in greater detail with reference to FIGS. 1, 4 and 5. Shown in FIG. 1, theslide base 62 is a substantially flat elongated member having a platetop surface 64, aplate bottom surface 66, and first and second plate ends 68, 70, respectively. Theplate bottom surface 66 is positioned adjacent to and is attached to thetop surface 14 of thebase 12. Afirst plate wall 72 extends substantially perpendicular and adjacent to thefirst plate end 68. Asecond plate wall 74 extends substantially perpendicular and adjacent to thesecond plate end 70. - Positioned adjacent to the plate
top surface 64 is the mountingstructure 76. The mountingstructure 76 is substantially rectangular in shape and has a mountingstructure bottom surface 88, and a mounting structuretop surface 84. The mountingstructure bottom surface 88 is attached to the platetop surface 64. Afirst portion 82 of a threadedshaft 78 extends through aside 98 of the mountingstructure 76 and is positioned substantially parallel to theslide base 62. Asecond portion 86 of the threadedshaft 78 extends through a wall aperture (not shown) in thesecond plate wall 74 and is received in amotor 80. - Positioned adjacent to the mounting
structure 76 is the mountingplate 212. As shown in FIG. 4, the mountingplate 212 is substantially rectangular in shape and has a mounting platetop surface 214 and a mounting platebottom surface 216. The mounting platebottom surface 216 is attached to the mounting structuretop surface 84. The mounting plate top surface 21 has mounting plate apertures (not shown). The mountingplate 212 is movable toward and away from the polishingsurface 52 by a threadedshaft 97 extending therethough. The threaded shaft is optionally driven by amotor 96 or manually driven. Apositional indicator 99 is provided to indicate travel in the direction toward and away from the polishingsurface 52. - Positioned adjacent to the mounting
plate 212 is aferrule holder 100. As shown in FIG. 4, theferrule holder 100 has a polishingend 103, a receivingend 105, a holdertop surface 106, aholder bottom surface 108, and holder first and second sides, 118, 120, respectively. Theholder bottom surface 108 is positioned adjacent to the mounting platetop surface 214. The polishingend 103 of theferrule holder 100 extends beyond the mounting platetop surface 214 and is positioned substantially adjacent to the polishingsurface 52 of therings 50. The receivingend 104 of theferrule holder 100 has anattachment member 109. The attachment member has an attachment member aperture (not shown). Abolt 112 or other suitable fastening means extends through the attachment member aperture and into the mounting plate aperture (not shown). - Substantially near the holder
top surface 106 is aferrule holding recess 105. As shown in FIG. 5, theferrule holding recess 105 is positioned toward the holderfirst side 118 and extends from the polishingend 103 through to the receivingend 105 of theferrule holder 100. Substantially near the holdertop surface 106 is also awater injecting recess 102. Thewater injecting recess 102 is positioned toward the holdersecond side 120 and has afirst portion 114 and asecond portion 116. Thefirst portion 114 extends substantially parallel to theferrule holding recess 105 from the polishingend 103 to substantially near the receivingend 105. Thesecond portion 116 extends substantially perpendicular to theferrule holding recess 105 from the end of thefirst portion 114 substantially near the receivingend 114 to the holdersecond side 120.Ferrule holder apertures 124 extend substantially parallel to and flank thewater injecting recess 102 and theferrule holding recess 105. It will be appreciated by those skilled in the art that while thewater injecting recess 102 is positioned toward the holdersecond side 120 and theferrule holding recess 105 is positioned toward the holderfirst side 118, the positions may be interchanged or varied to achieve substantially similar results. - As shown in FIGS. 4 and 5, a holding
plate 122 is positioned adjacent to the polishingend 103 of theferrule holder 100. The holdingplate 122 has a holding platefirst side 125 positioned adjacent to the polishingend 103 and a holding platesecond side 127 positioned substantially parallel to the polishingsurface 52. The holdingplate 122 has a ferrule end face receivingrecess 126 extending from the holding platefirst side 125 through to the holding platesecond side 127. The ferrule end face receivingrecess 126 has a slightly smaller diameter than theferrule holding recess 105 and is positioned adjacent to theferrule holding recess 105. Awater ejecting recess 128 is positioned substantially parallel to the ferrule end face holdingrecess 126 and extends from the holding platefirst side 125 through to the holding platesecond side 127. Thewater ejecting recess 128 is positioned adjacent to thefirst portion 114 of thewater injecting recess 102.Holding plate apertures 130 flank the ferrule end face receivingrecess 126 and thewater ejecting recess 128 and are positioned adjacent to theferrule holder apertures 124.Bolts 132 or other suitable fastening means extend from the holding platefirst side 125 through the holdingplate apertures 130 and into theferrule holder apertures 124. - As shown in FIG. 4, a holding
arm 226 is positioned adjacent to the holdertop surface 106 substantially above theferrule holding recess 105 and substantially near the holderfirst side 118. The holdingarm 226 has anarm 140 and first and second arm mounts 148, 150, respectively. Thefirst arm mount 148 andsecond arm mount 150 are positioned substantially perpendicular to the holdertop surface 106 and substantially parallel to each other. Aspring 228 extends substantially perpendicular to and between the first and second arm mounts 148, 150. - The
arm 140 has afirst flange 134 and asecond flange 136 positioned at an armtop end 139. Thefirst flange 134 is positioned toward the holderfirst side 118 and extends adjacent to thefirst arm mount 148. Afirst tip end 147 of thefirst flange 134 is pivotally attached to thefirst arm mount 148. Thesecond flange 136 is positioned toward the holdersecond side 120 and extends adjacent to thesecond arm mount 150. Asecond tip end 146 of thesecond flange 136 is pivotally attached to thesecond arm mount 150. Substantially centered at an armbottom end 138 is acable receiving recess 132. Thecable receiving recess 132 is positioned substantially parallel to the ferrule holding recess 1S and extends from the armbottom end 138 toward the armtop end 139 to form first andsecond legs - FIG. 5 shows a fiber
optic cable connector 200 comprising afiber optic cable 152 and aferrule assembly 154. Thefiber optic cable 152 has a centraloptical fiber 202 that is surrounded by abuffer 204 encompassed with aflexible jacket 206. Theferrule assembly 154 comprises aferrule 160 having anouter surface 172 and aninner surface 174. Moving from thefront end 156 of theferrule assembly 154 toward therear end 158, theferrule 160 has afirst section 162 having anend face 164. Adjacent thefirst section 162 of theferrule 160 and opposite of theend face 164 is asecond section 166. Thesecond section 166 has ashoulder 168 having a diameter slightly larger than the diameter of thefirst section 162. Theouter surface 172 of thesecond section 166 has a plurality of raisedportions 170 and recessedportions 176. Adjacent thesecond section 166 of theferrule 160 and opposite of theshoulder 168 is afirst holding portion 178. Thefirst holding portion 178 has first holding portion first andsecond flanges first base portion 184 and substantially converge adjacent to thesecond section 166. Adjacent thefirst holding portion 178 is asecond holding portion 186. Thesecond holding portion 186 has second holding portion first andsecond flanges second base portion 192 and substantially converge adjacent to thefirst base portion 184. Adjacent thesecond base portion 192 is aresilient ferrule spring 194. Thefiber optic cable 152 is disposed in theferrule assembly 154 such that a projectingsegment 208 of theoptical fiber 202 projects from theferrule 160end face 164. - The method of polishing the
ferrule 160end face 164 of the fiber opticcable end connector 200 will now be described in greater detail. First, the fiberoptic cable connector 200 is positioned in theferrule holding recess 105 by pivoting the holdingarm 226 away from theferrule holding recess 105. Theferrule 160end face 164 is received in theferrule holder 100ferrule holding recess 105. Theend face 164 is inserted into theferrule holding recess 105 until it is received in the ferrule end face receivingrecess 126 and projects from the holding platesecond side 127. The holdingarm 226 is then pivoted to its initial position adjacent to theferrule holder 100 receivingend 104. Thefiber optic cable 152 is received in thecable receiving recess 132 between the first andsecond legs spring 228 biases thelegs end 104 and against theferrule spring 194 projecting from theferrule receiving recess 105. Theferrule spring 194 then biases the fiberoptic cable connector 150 toward the holding platesecond side 127 until theshoulder 168 of theferrule 160 engages to the holding platefirst side 125. - As shown in FIG. 1, the
fixture assembly 60 is positioned substantially adjacent to the diskouter periphery 94 such that theend face 164 and the projectingsegment 208 of theoptical fiber 202 are positioned within theslot 110. Thefixture assembly 60 is then moved toward the polishingsurface 52 by themotor 96 andshaft 97 operating on the mountingplate 212 such that the fiber end face and ferrule contact the polishingsurface 52. Thepositional indicator 99 is used to determine the amount of material which is to be removed from the ferrule and fiber end face. While thedisk 16 spins and water is injected through thewater injecting recess 102, themotor 80 drives the threadedshaft 78 causing the mountingstructure 76 to move adjacent to the platetop surface 64 and parallel to the polishingsurface 52 from the diskouter periphery 94 to thedisk center 92. It should be noted here that water having a pH between 7 and 8 exhibits favorable results in that it acts as a wetting agent without unduly etching the glass of the fiber end being polishing. Additionally, soap and anti-foaming agents may be added to the water to keep the polishingsurface 52 clear of material which was removed from the ferrule and fiber end face. As the mountingstructure 76 travels from the diskouter periphery 94 to thedisk center 92, theend face 164 and projectingsegment 208 contact therotating polishing surface 52 of thering 50 positioned at the diskouter periphery 94 having the coarsest abrasive. As theend face 164 continues to move toward thedisk center 92, theend face 164 moves toward thefinest ring 50 to achieve a finely polished fiberoptic ferrule 160end face 164 in a single pass polishing. - Further, as the mounting
structure 76 travels from the diskouter periphery 94 to thedisk center 92, water or other cleaner or lubricant is injected through water infeed tubing (not shown), through thewater injecting recess 102 and is expelled from thewater ejecting recess 128 onto the polishingsurface 52 of therings 50 to remove debris and/or lubricate the polishingsurface 52 subsequent to theferrule 160end face 164 contacting the polishingsurface 52. Excess water and debris is, thereby, contained in theshroud 222 and drained through the base 12 utilizing well known techniques. - The foregoing illustrates some of the possibilities for practicing the invention. Many other embodiments are possible within the scope and spirit of the invention. It is, therefore, intended that the foregoing description be regarded as illustrative rather than limiting, and that the scope of the invention is given by the appended claims together with their full range of equivalents.
Claims (29)
1. A fiber optic ferrule polishing devise comprising:
a disk having an outer periphery and a center;
a plurality of rings having a polishing surface coated with varying degrees of abrasive and an attachment surface attached to the disk such that the courseness of abrasive on the rings decreases from the outer periphery to the center;
a ferrule holder having a ferrule holding recess substantially adjacent to the polishing surface and an attachment arm pivotally attached to the ferrule holder such that the arm is positioned substantially adjacent to the ferrule holding recess;
wherein when a fiber optic ferrule is received in the ferrule holding recess the attachment arm biases the fiber optic ferrule toward the disk polishing surface.
2. The device of claim 1 , wherein the ferrule holder has a water injecting recess positioned substantially adjacent to the ferrule holding recess.
3. The device of claim 2 , wherein the water injecting recess is positioned toward the disk center and the ferrule holding recess is positioned toward the disk outer periphery.
4. The device of claim 1 , further comprising a shroud encompassing the disk and the polishing surface.
5. The device of claim 1 , wherein the attachment arm has a first arm mount and a second arm mount attached substantially perpendicular to the ferrule holder and having a spring extending therebetween.
6. The device of claim 1 , wherein the attachment arm has a cable receiving recess for receipt of a fiber optic cable extending from the fiber optic ferrule positioned in the ferrule holding recess.
7. The device of claim 1 , further comprising a mounting plate for mounting the ferrule holder a predetermined distance from the polishing surface.
8. The device of claim 1 , further comprising a holding plate having a ferrule end face receiving recess having a smaller diameter than the ferrule holding recess and positioned adjacent to the ferrule holding recess and polishing surface.
9. The device of claim 1 , wherein the abrasive is a diamond grit.
10. The device of claim 1 , wherein the abrasive is a ceramic material.
11. The device of claim 1 wherein the abrasive is a carborundum material.
12. A fiber optic ferrule polishing devise comprising:
a disk having an outer periphery and a center;
a plurality of rings having a polishing surface coated with varying degrees of abrasive and an attachment surface attached to the disk such that the courseness of abrasive on the rings decreases from the outer periphery to the center;
a ferrule holder having a ferrule holding recess substantially adjacent to the polishing surface, a water injecting recess substantially adjacent to the ferrule holding recess and an attachment arm pivotally attached to the ferrule holder such that the arm is positioned substantially adjacent to the ferrule holding recess; and
wherein when a fiber optic ferrule is received in the ferrule holding recess the attachment arm biases the fiber optic ferrule toward the disk polishing surface.
13. The device of claim 12 , wherein the water injecting recess is positioned toward the disk center and the ferrule holding recess is positioned toward the disk outer periphery.
14. The device of claim 12 , further comprising a shroud encompassing the disk and the polishing surface.
15. The device of claim 12 , wherein the attachment arm has a first arm mount and a second arm mount attached substantially perpendicular to the ferrule holder and having a spring extending therebetween.
16. The device of claim 12 , wherein the attachment arm has a cable receiving recess for receipt of a fiber optic cable extending from the fiber optic ferrule positioned in the ferrule holding recess.
17. The device of claim 12 , further comprising a mounting plate for mounting the ferrule holder a predetermined distance from the polishing surface.
18. The device of claim 12 , further comprising a holding plate having a ferrule end face receiving recess having a smaller diameter than the ferrule holding recess and positioned adjacent to the ferrule holding recess and polishing surface.
19. The device of claim 12 , wherein the abrasive is a diamond grit.
20. The device of claim 12 , wherein the abrasive is a ceramic material.
21. The device of claim 12 wherein the abrasive is a carborundum material.
22. A fiber optic ferrule polishing devise comprising:
a disk having an outer periphery and a center;
a plurality of rings having a polishing surface coated with varying degrees of abrasive and an attachment surface attached to the disk such that the courseness of abrasive on the rings decreases from the outer periphery to the center;
a ferrule holder having a ferrule holding recess substantially adjacent to the polishing surface, a water injecting recess substantially adjacent to the ferrule holding recess and an attachment arm pivotally attached to the ferrule holder such that the arm is positioned substantially adjacent to the ferrule holding recess;
a holding plate having a ferrule end face receiving recess having a smaller diameter than the ferrule holding recess and positioned adjacent to the ferrule holding recess and polishing surface;
a mounting plate for mounting the ferrule holder a predetermined distance from the polishing surface; and
wherein when a fiber optic ferrule is received in the ferrule holding recess the attachment arm biases the fiber optic ferrule toward the disk polishing surface.
23. The device of claim 22 , wherein the water injecting recess is positioned toward the disk center and the ferrule holding recess is positioned toward the disk outer periphery.
24. The device of claim 22 , further comprising a shroud encompassing the disk and the polishing surface.
25. The device of claim 22 , wherein the attachment arm has a first arm mount and a second arm mount attached substantially perpendicular to the ferrule holder and having a spring extending therebetween.
26. The device of claim 22 , where in the attachment arm has a cable receiving recess for receipt of a fiber optic cable extending from the fiber optic ferrule positioned in the ferrule holding recess.
27. The device of claim 22 , wherein the abrasive is a diamond grit.
28. The device of claim 22 , wherein the abrasive is a ceramic material.
29. The device of claim 22 wherein the abrasive is a carborundum material.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/116,278 US20030190875A1 (en) | 2002-04-04 | 2002-04-04 | Fiber optic ferrule polishing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/116,278 US20030190875A1 (en) | 2002-04-04 | 2002-04-04 | Fiber optic ferrule polishing device |
Publications (1)
Publication Number | Publication Date |
---|---|
US20030190875A1 true US20030190875A1 (en) | 2003-10-09 |
Family
ID=28673940
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/116,278 Abandoned US20030190875A1 (en) | 2002-04-04 | 2002-04-04 | Fiber optic ferrule polishing device |
Country Status (1)
Country | Link |
---|---|
US (1) | US20030190875A1 (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6951508B1 (en) * | 2002-09-30 | 2005-10-04 | Brubacher Michael J | Optical fiber polishing device |
US20070032177A1 (en) * | 2005-08-04 | 2007-02-08 | Samsung Electronics Co., Ltd. | Wafer processing apparatus and wafer processing method using the same |
US20110189927A1 (en) * | 2010-01-29 | 2011-08-04 | Ronald Lipson | Composite pads for buffing and polishing painted vehicle body surfaces and other applications |
US20130023188A1 (en) * | 2011-07-21 | 2013-01-24 | Taiwan Semiconductor Manufacturing Company, Ltd. | Apparatus for Wafer Grinding |
US20150133032A1 (en) * | 2013-11-13 | 2015-05-14 | Tokyo Electron Limited | Polishing Cleaning Mechanism, Substrate Processing Apparatus, and Substrate Processing Method |
US20190351523A1 (en) * | 2017-01-25 | 2019-11-21 | Fives Landis Limited | Machine tools and methods of operation thereof |
WO2020106419A1 (en) * | 2018-11-19 | 2020-05-28 | Corning Research & Development Corporation | Method and apparatus for forming a convex end face in a ferrule |
US10775562B2 (en) * | 2016-12-13 | 2020-09-15 | Commscope Technologies Llc | Abrasive jet cleave and clean system |
CN114193310A (en) * | 2021-12-22 | 2022-03-18 | 广东大启智造科技有限公司 | Environment-friendly material toy burnishing and polishing equipment |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5265381A (en) * | 1991-10-04 | 1993-11-30 | Seikoh Giken Co., Ltd. | Method for grinding ferrules for ribbon type optical fibers |
US6039630A (en) * | 1998-02-27 | 2000-03-21 | Ciena Corporation | Apparatus and method for calibrating pressure existing between optical fibers and a polishing pad during a polishing process |
US6165055A (en) * | 1998-09-14 | 2000-12-26 | Seikoh Giken Co., Ltd. | Optical fiber end surface polishing apparatus |
-
2002
- 2002-04-04 US US10/116,278 patent/US20030190875A1/en not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5265381A (en) * | 1991-10-04 | 1993-11-30 | Seikoh Giken Co., Ltd. | Method for grinding ferrules for ribbon type optical fibers |
US6039630A (en) * | 1998-02-27 | 2000-03-21 | Ciena Corporation | Apparatus and method for calibrating pressure existing between optical fibers and a polishing pad during a polishing process |
US6165055A (en) * | 1998-09-14 | 2000-12-26 | Seikoh Giken Co., Ltd. | Optical fiber end surface polishing apparatus |
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6951508B1 (en) * | 2002-09-30 | 2005-10-04 | Brubacher Michael J | Optical fiber polishing device |
US20070032177A1 (en) * | 2005-08-04 | 2007-02-08 | Samsung Electronics Co., Ltd. | Wafer processing apparatus and wafer processing method using the same |
US20110189927A1 (en) * | 2010-01-29 | 2011-08-04 | Ronald Lipson | Composite pads for buffing and polishing painted vehicle body surfaces and other applications |
US9089943B2 (en) * | 2010-01-29 | 2015-07-28 | Ronald Lipson | Composite pads for buffing and polishing painted vehicle body surfaces and other applications |
US9566683B2 (en) | 2011-07-21 | 2017-02-14 | Taiwan Semiconductor Manufacturing Company, Ltd. | Method for wafer grinding |
US20130023188A1 (en) * | 2011-07-21 | 2013-01-24 | Taiwan Semiconductor Manufacturing Company, Ltd. | Apparatus for Wafer Grinding |
US9120194B2 (en) * | 2011-07-21 | 2015-09-01 | Taiwan Semiconductor Manufacturing Company, Ltd. | Apparatus for wafer grinding |
US9669510B2 (en) * | 2013-11-13 | 2017-06-06 | Tokyo Electron Limited | Polishing cleaning mechanism, substrate processing apparatus, and substrate processing method |
US20150133032A1 (en) * | 2013-11-13 | 2015-05-14 | Tokyo Electron Limited | Polishing Cleaning Mechanism, Substrate Processing Apparatus, and Substrate Processing Method |
US10328546B2 (en) | 2013-11-13 | 2019-06-25 | Tokyo Electron Limited | Polishing cleaning mechanism, substrate processing apparatus, and substrate processing method |
US10775562B2 (en) * | 2016-12-13 | 2020-09-15 | Commscope Technologies Llc | Abrasive jet cleave and clean system |
US11536905B2 (en) | 2016-12-13 | 2022-12-27 | Commscope Technologies Llc | Abrasive jet cleave and clean system |
US20190351523A1 (en) * | 2017-01-25 | 2019-11-21 | Fives Landis Limited | Machine tools and methods of operation thereof |
US11712775B2 (en) * | 2017-01-25 | 2023-08-01 | Fives Landis Limited | Machine tools and methods of operation thereof |
WO2020106419A1 (en) * | 2018-11-19 | 2020-05-28 | Corning Research & Development Corporation | Method and apparatus for forming a convex end face in a ferrule |
CN114193310A (en) * | 2021-12-22 | 2022-03-18 | 广东大启智造科技有限公司 | Environment-friendly material toy burnishing and polishing equipment |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5216846A (en) | Method and apparatus for grinding foremost end surface of a ferrule | |
CA2079276C (en) | Polishing process for optical connector assembly with optical fiber and polishing apparatus | |
CN102152194B (en) | Method for polishing lens made from glass or plastic | |
US4831784A (en) | Polishing apparatus for end faces of optical fibers | |
US6106368A (en) | Polishing method for preferentially etching a ferrule and ferrule assembly | |
US20030190875A1 (en) | Fiber optic ferrule polishing device | |
US7118291B2 (en) | End face polishing apparatus | |
EP0858381A1 (en) | Deterministic magnetorheological finishing | |
EP0721822B1 (en) | Optical fiber ferrule holding plate for optical fiber end polishing apparatus | |
US20050208210A1 (en) | Headlight lens resurfacing apparatus and method | |
JP3227406B2 (en) | Magnetic polishing apparatus and magnetic polishing method | |
US7175514B2 (en) | Polishing fixture assembly for a fiber optic cable connector polishing apparatus | |
US6752536B2 (en) | Method of simultaneously polishing a plurality of diverse fiber optic cable connectors | |
WO1988004217A1 (en) | Optic fiber lapping or polishing apparatus | |
US6951508B1 (en) | Optical fiber polishing device | |
US5823859A (en) | Method of contouring optical fiber end faces and apparatus used therefor | |
US6641472B2 (en) | Polishing pad assembly for fiber optic cable connector polishing apparatus | |
JP3141351B2 (en) | Optical fiber connector ferrule end surface polishing table | |
CN104290003A (en) | Rotating chip optical lens polishing apparatus | |
KR101591569B1 (en) | Polishing apparatus for the aspheric lens | |
JP2833617B2 (en) | Surface processing method and apparatus | |
JPS63109969A (en) | End face forming and polishing method for optical fiber | |
JPH08323596A (en) | Grinding device for glass | |
JP3927054B2 (en) | Optical fiber end face polishing method and ferrule used therefor | |
CN110757259B (en) | Polishing device for internal spiral raceways of multiple screw nuts |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: DIE-TECH INCORPORATED, PENNSYLVANIA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:GRABBE, DIMITRY G.;REEL/FRAME:012777/0816 Effective date: 20020404 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |