FR533648A - Improvements in optical lens grinding machines - Google Patents

Improvements in optical lens grinding machines

Info

Publication number
FR533648A
FR533648A FR533648DA FR533648A FR 533648 A FR533648 A FR 533648A FR 533648D A FR533648D A FR 533648DA FR 533648 A FR533648 A FR 533648A
Authority
FR
France
Prior art keywords
optical lens
grinding machines
lens grinding
machines
optical
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
Application number
Other languages
French (fr)
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.)
American Optical Corp
Original Assignee
American Optical Corp
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 American Optical Corp filed Critical American Optical Corp
Application granted granted Critical
Publication of FR533648A publication Critical patent/FR533648A/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
    • B24B13/02—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor by means of tools with abrading surfaces corresponding in shape with the lenses to be made

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
FR533648D 1919-04-10 1921-03-31 Improvements in optical lens grinding machines Expired FR533648A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US289067A US1520662A (en) 1919-04-10 1919-04-10 Lens-surfacing machine

Publications (1)

Publication Number Publication Date
FR533648A true FR533648A (en) 1922-03-07

Family

ID=23109900

Family Applications (1)

Application Number Title Priority Date Filing Date
FR533648D Expired FR533648A (en) 1919-04-10 1921-03-31 Improvements in optical lens grinding machines

Country Status (3)

Country Link
US (1) US1520662A (en)
DE (1) DE375852C (en)
FR (1) FR533648A (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2450742A (en) * 1943-11-06 1948-10-05 Gen Motors Corp Lapping or polishing
US2465702A (en) * 1945-10-26 1949-03-29 Scophony Ltd Apparatus for lapping part-spherical and similar surfaces
US2572443A (en) * 1948-11-24 1951-10-23 Percy Hermant Ltd Cylinder lens lapping machine
US2643492A (en) * 1950-12-05 1953-06-30 Burroughs Optomat Inc Grinding machine and method
US2659185A (en) * 1951-06-29 1953-11-17 Norton Co Honing machine
US2916857A (en) * 1958-02-14 1959-12-15 American Optical Corp Lens surfacing machines
US3201905A (en) * 1962-05-02 1965-08-24 James H Drury Lapping article
US3292312A (en) * 1962-05-02 1966-12-20 James H Drury Method of abrading a workpiece
US3258879A (en) * 1963-11-04 1966-07-05 Carlyle A Edelstein Apparatus for grinding contact lenses

Also Published As

Publication number Publication date
US1520662A (en) 1924-12-23
DE375852C (en) 1923-05-19

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