FR674557A - Perfectionnement aux lapidaires et méthode de fabrication de lentilles - Google Patents

Perfectionnement aux lapidaires et méthode de fabrication de lentilles

Info

Publication number
FR674557A
FR674557A FR674557DA FR674557A FR 674557 A FR674557 A FR 674557A FR 674557D A FR674557D A FR 674557DA FR 674557 A FR674557 A FR 674557A
Authority
FR
France
Prior art keywords
lapidary
improvement
lens manufacturing
lens
manufacturing
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
English (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.)
Saint Gobain Abrasives Inc
Original Assignee
Norton Co
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 Norton Co filed Critical Norton Co
Priority claimed from DEN30598D external-priority patent/DE551302C/de
Application granted granted Critical
Publication of FR674557A publication Critical patent/FR674557A/fr
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
    • B24B13/023—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 for grinding several lenses simultaneously

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
FR674557D 1929-06-24 1929-05-03 Perfectionnement aux lapidaires et méthode de fabrication de lentilles Expired FR674557A (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB19309/29A GB328849A (en) 1929-06-24 1929-06-24 Improvements in lapping machine and method of making lenses
DEN30598D DE551302C (de) 1929-07-06 1929-07-06 Maschine zum gleichzeitigen Bearbeiten gegenueberliegender Flaechen einer Vielzahl von Werkstuecken in einem doppelt kreisenden Kaefig

Publications (1)

Publication Number Publication Date
FR674557A true FR674557A (fr) 1930-01-30

Family

ID=27664448

Family Applications (1)

Application Number Title Priority Date Filing Date
FR674557D Expired FR674557A (fr) 1929-06-24 1929-05-03 Perfectionnement aux lapidaires et méthode de fabrication de lentilles

Country Status (2)

Country Link
FR (1) FR674557A (fr)
GB (1) GB328849A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112935995A (zh) * 2021-01-29 2021-06-11 温州市全越科技有限公司 光学镜片高精度抛光机及其动力传动装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2426925A (en) * 1942-12-10 1947-09-02 Micromatic Hone Corp Ball honing device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112935995A (zh) * 2021-01-29 2021-06-11 温州市全越科技有限公司 光学镜片高精度抛光机及其动力传动装置

Also Published As

Publication number Publication date
GB328849A (en) 1930-05-08

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