GB1165549A - Improvements in Multifocal Lens Blank Manufacture. - Google Patents

Improvements in Multifocal Lens Blank Manufacture.

Info

Publication number
GB1165549A
GB1165549A GB5580866A GB5580866A GB1165549A GB 1165549 A GB1165549 A GB 1165549A GB 5580866 A GB5580866 A GB 5580866A GB 5580866 A GB5580866 A GB 5580866A GB 1165549 A GB1165549 A GB 1165549A
Authority
GB
United Kingdom
Prior art keywords
blank
block
lens blank
lens
reference flats
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
GB5580866A
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.)
Univis Inc
Original Assignee
Univis Inc
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 Univis Inc filed Critical Univis Inc
Publication of GB1165549A publication Critical patent/GB1165549A/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
    • B24B13/0012—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor for multifocal lenses
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00—Optical parts
    • G02C7/02—Lenses; Lens systems ; Methods of designing lenses
    • G02C7/06—Lenses; Lens systems ; Methods of designing lenses bifocal; multifocal ; progressive

Landscapes

  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Eyeglasses (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
GB5580866A 1966-01-12 1966-12-13 Improvements in Multifocal Lens Blank Manufacture. Expired GB1165549A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US52017366A 1966-01-12 1966-01-12

Publications (1)

Publication Number Publication Date
GB1165549A true GB1165549A (en) 1969-10-01

Family

ID=24071465

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5580866A Expired GB1165549A (en) 1966-01-12 1966-12-13 Improvements in Multifocal Lens Blank Manufacture.

Country Status (6)

Country Link
BE (1) BE692018A (enrdf_load_stackoverflow)
CH (1) CH477010A (enrdf_load_stackoverflow)
DE (1) DE1596688A1 (enrdf_load_stackoverflow)
FR (1) FR1514223A (enrdf_load_stackoverflow)
GB (1) GB1165549A (enrdf_load_stackoverflow)
NL (1) NL6700424A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2155653A (en) * 1984-03-08 1985-09-25 Bristol Alexander C Aspheric spectacle lens blank
GB2319352A (en) * 1996-11-12 1998-05-20 Gerber Optical Inc Attaching finishing block to lens using alignment pattern

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2155653A (en) * 1984-03-08 1985-09-25 Bristol Alexander C Aspheric spectacle lens blank
GB2319352A (en) * 1996-11-12 1998-05-20 Gerber Optical Inc Attaching finishing block to lens using alignment pattern
GB2319352B (en) * 1996-11-12 1998-12-09 Gerber Optical Inc Attaching finishing block to lens using alignment pattern
US6011630A (en) * 1996-11-12 2000-01-04 Gerber Optical, Inc. System and method for blocking a lens

Also Published As

Publication number Publication date
DE1596688A1 (de) 1970-12-17
BE692018A (enrdf_load_stackoverflow) 1967-06-30
FR1514223A (fr) 1968-02-23
CH477010A (de) 1969-08-15
NL6700424A (enrdf_load_stackoverflow) 1967-07-13

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees