GB2010143A - Improvements in and relating to generating aspheric surfaces - Google Patents

Improvements in and relating to generating aspheric surfaces

Info

Publication number
GB2010143A
GB2010143A GB7841245A GB7841245A GB2010143A GB 2010143 A GB2010143 A GB 2010143A GB 7841245 A GB7841245 A GB 7841245A GB 7841245 A GB7841245 A GB 7841245A GB 2010143 A GB2010143 A GB 2010143A
Authority
GB
United Kingdom
Prior art keywords
workpiece
tool
axis
plane
relating
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.)
Granted
Application number
GB7841245A
Other versions
GB2010143B (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Grubb Parsons & Co Ltd H
Original Assignee
Grubb Parsons & Co Ltd H
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Grubb Parsons & Co Ltd H filed Critical Grubb Parsons & Co Ltd H
Priority to GB7841245A priority Critical patent/GB2010143B/en
Publication of GB2010143A publication Critical patent/GB2010143A/en
Application granted granted Critical
Publication of GB2010143B publication Critical patent/GB2010143B/en
Expired legal-status Critical Current

Links

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
    • B24B13/04—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor grinding of lenses involving grinding wheels controlled by gearing
    • B24B13/043—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor grinding of lenses involving grinding wheels controlled by gearing using cup-type grinding wheels

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Turning (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)

Abstract

A method of generating an aspheric surface (2) on a workpiece (1) which method comprises rotating the workpiece (1) about an axis (AA) coinciding with the required axis of symmetry of the surface (2) to be formed and applying to the workpiece (1) an annular tool (3) rotating about the axis (BB) of its annular cutting edge (4), the relative positions of the intersection of the tool and workpiece axes (BB and AA) and the intersection of the workpiece axis (AA) and tool plane in a plane common to the workpiece and tool axes being continuously variable with respect to one another in a predetermined controlled relationship whilst the tool (3) and workpiece (2) are maintained coplanar in the plane of relative movement of the said intersections. <IMAGE>
GB7841245A 1977-07-19 1978-10-19 Generating aspheric surfaces Expired GB2010143B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7841245A GB2010143B (en) 1977-07-19 1978-10-19 Generating aspheric surfaces

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB3028977 1977-07-19
GB7841245A GB2010143B (en) 1977-07-19 1978-10-19 Generating aspheric surfaces

Publications (2)

Publication Number Publication Date
GB2010143A true GB2010143A (en) 1979-06-27
GB2010143B GB2010143B (en) 1982-05-26

Family

ID=26260371

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7841245A Expired GB2010143B (en) 1977-07-19 1978-10-19 Generating aspheric surfaces

Country Status (1)

Country Link
GB (1) GB2010143B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2363349A (en) * 2000-04-04 2001-12-19 Tritek Optical Services Ltd Device for lens finishing
US7469474B2 (en) 2002-01-17 2008-12-30 Depuy International Limited Manufacturing a component with a near spherical surface

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2363349A (en) * 2000-04-04 2001-12-19 Tritek Optical Services Ltd Device for lens finishing
US7469474B2 (en) 2002-01-17 2008-12-30 Depuy International Limited Manufacturing a component with a near spherical surface

Also Published As

Publication number Publication date
GB2010143B (en) 1982-05-26

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Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee