AU1782776A - A method of manufacturing a mould fora lens element - Google Patents

A method of manufacturing a mould fora lens element

Info

Publication number
AU1782776A
AU1782776A AU17827/76A AU1782776A AU1782776A AU 1782776 A AU1782776 A AU 1782776A AU 17827/76 A AU17827/76 A AU 17827/76A AU 1782776 A AU1782776 A AU 1782776A AU 1782776 A AU1782776 A AU 1782776A
Authority
AU
Australia
Prior art keywords
fora
mould
manufacturing
lens element
lens
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
AU17827/76A
Other versions
AU500878B2 (en
Inventor
S Green
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.)
ZF International UK Ltd
Original Assignee
Lucas Industries Ltd
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 Lucas Industries Ltd filed Critical Lucas Industries Ltd
Publication of AU1782776A publication Critical patent/AU1782776A/en
Application granted granted Critical
Publication of AU500878B2 publication Critical patent/AU500878B2/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B29D11/00278—Lenticular sheets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/28—Cover glass

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Ophthalmology & Optometry (AREA)
  • Mechanical Engineering (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Milling Processes (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
AU17827/76A 1975-09-20 1976-09-16 A method of manufacturing a mould fora lens element Expired AU500878B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB38691/75 1975-09-20
GB38691/75A GB1546805A (en) 1975-09-20 1975-09-20 Method of manufacturing a mould for producing a lens element and mould manufactured by that method

Publications (2)

Publication Number Publication Date
AU1782776A true AU1782776A (en) 1978-03-23
AU500878B2 AU500878B2 (en) 1979-06-07

Family

ID=10405091

Family Applications (1)

Application Number Title Priority Date Filing Date
AU17827/76A Expired AU500878B2 (en) 1975-09-20 1976-09-16 A method of manufacturing a mould fora lens element

Country Status (9)

Country Link
JP (2) JPS5835805B2 (en)
AU (1) AU500878B2 (en)
BR (1) BR7606187A (en)
DE (1) DE2641615C2 (en)
ES (1) ES451681A1 (en)
FR (1) FR2324436A1 (en)
GB (1) GB1546805A (en)
IN (1) IN146506B (en)
IT (1) IT1066189B (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4332438A (en) * 1979-03-23 1982-06-01 Lucas Industries Limited Lens element
JPS58179702U (en) * 1982-05-27 1983-12-01 株式会社小糸製作所 vehicle headlights
DE3527804A1 (en) * 1985-08-02 1987-02-05 Bosch Gmbh Robert Headlamp, in particular working headlamp for vehicles
AT386080B (en) * 1986-03-07 1988-06-27 Futuritwerk Ag LIGHT SPREADER FOR INTENSITY DISTRIBUTION OF LIGHT
JPH01257504A (en) * 1988-04-08 1989-10-13 Koito Mfg Co Ltd Machining method for fresnel step
JP2603098B2 (en) * 1988-04-08 1997-04-23 株式会社小糸製作所 Processing method of Fresnel step
US6476971B1 (en) * 2000-10-31 2002-11-05 Eastman Kodak Company Method of manufacturing a microlens array mold and a microlens array
US6491481B1 (en) * 2000-10-31 2002-12-10 Eastman Kodak Company Method of making a precision microlens mold and a microlens mold
US6402996B1 (en) * 2000-10-31 2002-06-11 Eastman Kodak Company Method of manufacturing a microlens and a microlens array
FR2849157B1 (en) * 2002-12-20 2015-07-10 Valeo Vision DEVICE FOR LIGHTING AND / OR SIGNALING THE PROJECTOR OR FIRE TYPE FOR A MOTOR VEHICLE

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2137079A (en) * 1935-11-22 1938-11-15 Gen Motors Corp Lens
US2890627A (en) * 1950-03-04 1959-06-16 Gen Motors Corp Method for making lens mold
GB1387589A (en) * 1971-08-06 1975-03-19 Lucas Electrical Co Ltd Lenses
JPS5251518Y2 (en) * 1972-10-17 1977-11-22
JPS49151274U (en) * 1973-04-30 1974-12-27

Also Published As

Publication number Publication date
JPS5239713A (en) 1977-03-28
ES451681A1 (en) 1977-11-16
FR2324436A1 (en) 1977-04-15
DE2641615A1 (en) 1977-03-31
AU500878B2 (en) 1979-06-07
IT1066189B (en) 1985-03-04
DE2641615C2 (en) 1984-05-17
BR7606187A (en) 1977-06-14
IN146506B (en) 1979-06-23
FR2324436B1 (en) 1979-01-19
JPS58181512A (en) 1983-10-24
JPS5835805B2 (en) 1983-08-05
GB1546805A (en) 1979-05-31

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