FR2314512B1 - - Google Patents

Info

Publication number
FR2314512B1
FR2314512B1 FR7617856A FR7617856A FR2314512B1 FR 2314512 B1 FR2314512 B1 FR 2314512B1 FR 7617856 A FR7617856 A FR 7617856A FR 7617856 A FR7617856 A FR 7617856A FR 2314512 B1 FR2314512 B1 FR 2314512B1
Authority
FR
France
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
FR7617856A
Other versions
FR2314512A1 (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.)
BUSH SYDNEY
Original Assignee
BUSH SYDNEY
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
Priority claimed from GB2544875A external-priority patent/GB1539381A/en
Application filed by BUSH SYDNEY filed Critical BUSH SYDNEY
Publication of FR2314512A1 publication Critical patent/FR2314512A1/fr
Application granted granted Critical
Publication of FR2314512B1 publication Critical patent/FR2314512B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • C03B23/025—Re-forming glass sheets by bending by gravity
    • C03B23/0258—Gravity bending involving applying local or additional heating, cooling or insulating means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B29D11/00009—Production of simple or compound lenses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B29D11/00009—Production of simple or compound lenses
    • B29D11/00019—Production of simple or compound lenses with non-spherical faces, e.g. toric faces
    • 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
    • C03B23/03—Re-forming glass sheets by bending by press-bending between shaping moulds
    • C03B23/0302—Re-forming glass sheets by bending by press-bending between shaping moulds between opposing full-face shaping moulds
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Health & Medical Sciences (AREA)
  • Eyeglasses (AREA)
FR7617856A 1975-06-13 1976-06-11 Lentille de correction de la vue et son procede de fabrication Granted FR2314512A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB2544875A GB1539381A (en) 1975-06-13 1975-06-13 Ophthalmic lenses
GB547676 1976-02-11
GB710676 1976-02-23
GB730976 1976-02-24

Publications (2)

Publication Number Publication Date
FR2314512A1 FR2314512A1 (fr) 1977-01-07
FR2314512B1 true FR2314512B1 (fr) 1982-05-07

Family

ID=27447451

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7617856A Granted FR2314512A1 (fr) 1975-06-13 1976-06-11 Lentille de correction de la vue et son procede de fabrication

Country Status (4)

Country Link
US (1) US4124282A (fr)
JP (1) JPS5986B2 (fr)
DE (1) DE2625712A1 (fr)
FR (1) FR2314512A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53113642U (fr) * 1977-02-17 1978-09-09
FR2419257A1 (fr) * 1978-03-08 1979-10-05 Stenger Et Cie Sarl E Et G Procede de fabrication de lentilles a puissance progressive et lentilles ainsi obtenues
JPS6146281A (ja) * 1984-08-10 1986-03-06 Kyowa Leather Kk 装飾性を有するシ−ト状物の連続製造法及びその装置
FR2573876A1 (fr) * 1984-11-26 1986-05-30 Vinzia Francis Lentille multifocale, procede de preparation de cette lentille et utilisation comme lentille de contact ou comme implant intra-oculaire pour remplacer le cristallin
DE69604607T2 (de) * 1995-03-13 2000-03-23 Mitsubishi Heavy Ind Ltd Spiralverdrängermaschine

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1951506A (en) * 1930-08-18 1934-03-20 Continental Optical Mfg Compan Bifocal lens and method of making the same
AT204803B (de) * 1957-08-13 1959-08-10 Saint Gobain Linse mit asphärischen Flächen

Also Published As

Publication number Publication date
DE2625712A1 (de) 1976-12-16
FR2314512A1 (fr) 1977-01-07
US4124282A (en) 1978-11-07
JPS5986B2 (ja) 1984-01-05
JPS522448A (en) 1977-01-10

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Legal Events

Date Code Title Description
ST Notification of lapse