NL168626C - LENS FOR GLASSES WITH VARIETY OF STRENGTH. - Google Patents

LENS FOR GLASSES WITH VARIETY OF STRENGTH.

Info

Publication number
NL168626C
NL168626C NLAANVRAGE7410793,A NL7410793A NL168626C NL 168626 C NL168626 C NL 168626C NL 7410793 A NL7410793 A NL 7410793A NL 168626 C NL168626 C NL 168626C
Authority
NL
Netherlands
Prior art keywords
glasses
lens
variety
strength
Prior art date
Application number
NLAANVRAGE7410793,A
Other languages
Dutch (nl)
Other versions
NL7410793A (en
NL168626B (en
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
Publication of NL7410793A publication Critical patent/NL7410793A/en
Priority claimed from US05/619,143 external-priority patent/US4056311A/en
Priority claimed from US05/638,869 external-priority patent/US4062629A/en
Priority claimed from US05/638,870 external-priority patent/US4055379A/en
Publication of NL168626B publication Critical patent/NL168626B/en
Application granted granted Critical
Publication of NL168626C publication Critical patent/NL168626C/en

Links

Classifications

    • 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
    • G02C7/061—Spectacle lenses with progressively varying focal power
    • G02C7/063—Shape of the progressive surface
    • 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
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B23/00—Re-forming shaped glass
    • C03B23/02—Re-forming glass sheets
    • C03B23/023—Re-forming glass sheets by bending
    • C03B23/035—Re-forming glass sheets by bending using a gas cushion or by changing gas pressure, e.g. by applying vacuum or blowing for supporting the glass while bending
    • C03B23/0352—Re-forming glass sheets by bending using a gas cushion or by changing gas pressure, e.g. by applying vacuum or blowing for supporting the glass while bending by suction or blowing out for providing the deformation force to bend the glass sheet
    • C03B23/0357—Re-forming glass sheets by bending using a gas cushion or by changing gas pressure, e.g. by applying vacuum or blowing for supporting the glass while bending by suction or blowing out for providing the deformation force to bend the glass sheet by suction without blowing, e.g. with vacuum or by venturi effect
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B23/00—Re-forming shaped glass
    • C03B23/20—Uniting glass pieces by fusing without substantial reshaping
    • C03B23/22—Uniting glass lenses, e.g. forming bifocal 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
    • G02C7/061—Spectacle lenses with progressively varying focal power

Landscapes

  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Engineering (AREA)
  • Eyeglasses (AREA)
  • Lenses (AREA)
NLAANVRAGE7410793,A 1973-08-16 1974-08-12 LENS FOR GLASSES WITH VARIETY OF STRENGTH. NL168626C (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US38904473A 1973-08-16 1973-08-16
US38904273A 1973-08-16 1973-08-16
US38904373A 1973-08-16 1973-08-16
US05/619,143 US4056311A (en) 1973-08-16 1975-10-01 Progressive power ophthalmic lens having a plurality of viewing zones with non-discontinuous variations therebetween
US05/638,869 US4062629A (en) 1973-08-16 1975-12-08 Progressive power ophthalmic lens having a plurality of viewing zone with discontinuous power variations therebetween
US05/638,870 US4055379A (en) 1973-08-16 1975-12-08 Multifocal lens

Publications (3)

Publication Number Publication Date
NL7410793A NL7410793A (en) 1975-02-18
NL168626B NL168626B (en) 1981-11-16
NL168626C true NL168626C (en) 1982-04-16

Family

ID=62567082

Family Applications (1)

Application Number Title Priority Date Filing Date
NLAANVRAGE7410793,A NL168626C (en) 1973-08-16 1974-08-12 LENS FOR GLASSES WITH VARIETY OF STRENGTH.

Country Status (4)

Country Link
JP (1) JPS5753570B2 (en)
DE (5) DE2462446C3 (en)
FR (2) FR2270613A1 (en)
NL (1) NL168626C (en)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL168626C (en) * 1973-08-16 1982-04-16 American Optical Corp LENS FOR GLASSES WITH VARIETY OF STRENGTH.
JPS526635U (en) * 1975-07-01 1977-01-18
DE2610203B2 (en) * 1976-03-11 1981-01-22 Optische Werke G. Rodenstock, 8000 Muenchen Progressive lens
FR2419257A1 (en) * 1978-03-08 1979-10-05 Stenger Et Cie Sarl E Et G Multifocal, glass spectacle lens - with progressive alteration in power of zone for close observation or reading
FR2425653A1 (en) * 1978-05-12 1979-12-07 Essilor Int PROCESS FOR DEVELOPING A REFRACTION SURFACE OF AN OPHTHALMIC LENS WITH PROGRESSIVELY VARIABLE FOCAL POWER
JPS5942286B2 (en) * 1979-08-24 1984-10-13 セイコーエプソン株式会社 eyeglass lenses
US4307945A (en) * 1980-02-14 1981-12-29 Itek Corporation Progressively varying focal power opthalmic lens
JPS56128916A (en) * 1980-02-14 1981-10-08 Itek Corp Lens for glasses having sequentially varying focus
US4271538A (en) * 1980-03-24 1981-06-09 Norton Company Safety spectacles
JPS56144414A (en) * 1980-04-12 1981-11-10 Hoya Corp Progressive multifocal lens
JPS5794714A (en) * 1980-12-05 1982-06-12 Seiko Epson Corp Progressive multifocus lens
FR2495789B1 (en) * 1980-12-05 1986-02-14 Suwa Seikosha Kk PROGRESSIVE MULTIFOCAL LENS
JPS5799613A (en) * 1980-12-12 1982-06-21 Seiko Epson Corp Progressive multifocus lens
DE3116524C2 (en) * 1981-02-09 1993-06-24 AO Inc., Southbridge, Mass. Spectacle lenses, especially for correcting presbyopia
JPS57210320A (en) * 1981-06-19 1982-12-23 Hoya Corp Progressive focus lens
JPS5988718A (en) * 1982-11-12 1984-05-22 Hoya Corp Progressive focusing spectacle lens considering vergence of eye
JPH0690368B2 (en) * 1985-07-09 1994-11-14 セイコーエプソン株式会社 Progressive multifocal lens and glasses
GB8528460D0 (en) * 1985-11-19 1985-12-24 Sola Int Holdings Multifocal lens
US4838675A (en) * 1987-06-19 1989-06-13 Sola International Holdings, Ltd. Method for improving progressive lens designs and resulting article
DE3739974A1 (en) * 1987-11-25 1989-06-08 Rodenstock Optik G PROGRESSIVE GLASS GLASS
JPH03109522A (en) * 1990-09-14 1991-05-09 Seiko Epson Corp Progressive multifocus lens
US5446508A (en) * 1994-02-18 1995-08-29 Bmc Industries, Inc. Progressive power lens
US6827441B2 (en) * 2002-01-31 2004-12-07 Opticlear Inc. Progressive lens with reduced distortion
CN101208628B (en) * 2005-06-03 2011-05-18 Hoya株式会社 Eye-use lens
DE102005057533A1 (en) 2005-12-01 2007-06-06 Rodenstock Gmbh Method for calculating the magnification and / or distortion and method for producing a spectacle lens with low magnification and / or distortion
US9256083B2 (en) 2011-09-22 2016-02-09 Ocular Technology Inc. Multi-focal lens
JP2019045545A (en) * 2017-08-30 2019-03-22 東海光学株式会社 Bifocal lens and method for manufacturing the same

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1271356A (en) * 1915-04-01 1918-07-02 Arthur E Paige Multifocal optical element.
US2475275A (en) * 1945-01-19 1949-07-05 Birchall Henry James Lens of variable focal power having surfaces of involute form
US2919523A (en) * 1951-09-04 1960-01-05 Bozena Marie Phillips Ophthalmic lenses and process and apparatus for producing the same
DE1151955B (en) * 1953-11-25 1963-07-25 & Commerciale Des Ouvriers Lun Optical element with constantly changing refractive power
BE533468A (en) * 1953-11-25
DE1145820B (en) * 1956-10-06 1963-03-21 Saint Gobain Lens
FR1509090A (en) * 1966-11-29 1968-01-12 Lunetiers Cottet Poichet Soc D Improvements to ophthalmic lenses with progressively variable focal power
BE755907A (en) * 1969-09-11 1971-02-15 Lunetiers PROGRESSIVE FOCAL POWER LENSES
NL168626C (en) * 1973-08-16 1982-04-16 American Optical Corp LENS FOR GLASSES WITH VARIETY OF STRENGTH.

Also Published As

Publication number Publication date
DE2439127B2 (en) 1977-10-06
FR2326718B2 (en) 1982-04-30
FR2326718A2 (en) 1977-04-29
DE2644510A1 (en) 1977-04-14
DE7630825U1 (en) 1980-04-17
DE2644450A1 (en) 1977-04-07
NL7410793A (en) 1975-02-18
JPS5046348A (en) 1975-04-25
FR2270613B1 (en) 1979-06-15
NL168626B (en) 1981-11-16
FR2270613A1 (en) 1975-12-05
JPS5753570B2 (en) 1982-11-13
DE2462446B2 (en) 1979-01-25
DE2462446C3 (en) 1979-09-20
DE2462446A1 (en) 1977-03-31
DE2439127A1 (en) 1975-02-27

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Legal Events

Date Code Title Description
SNR Assignments of patents or rights arising from examined patent applications

Owner name: AO, INC,

V4 Lapsed because of reaching the maximum lifetime of a patent