ES451681A1 - Method of manufacturing a mould for producing a lens element and mould manufactured by that method - Google Patents

Method of manufacturing a mould for producing a lens element and mould manufactured by that method

Info

Publication number
ES451681A1
ES451681A1 ES451681A ES451681A ES451681A1 ES 451681 A1 ES451681 A1 ES 451681A1 ES 451681 A ES451681 A ES 451681A ES 451681 A ES451681 A ES 451681A ES 451681 A1 ES451681 A1 ES 451681A1
Authority
ES
Spain
Prior art keywords
mould
lens element
producing
manufacturing
mold
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
ES451681A
Other languages
Spanish (es)
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 ES451681A1 publication Critical patent/ES451681A1/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)
  • Health & Medical Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Ophthalmology & Optometry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Milling Processes (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Optical Elements Other Than Lenses (AREA)

Abstract

A mold for producing a headlight lens element and method of manufacturing said mold, which mold comprises a mold plate having a plurality of cavities on one of its faces, each of said cavities being adapted to produce a projection or cavity on a face of said lens element and being shaped so as to define in said projection or cavity an integral lens with a prism that it covers. (Machine-translation by Google Translate, not legally binding)
ES451681A 1975-09-20 1976-09-20 Method of manufacturing a mould for producing a lens element and mould manufactured by that method Expired ES451681A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
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 (1)

Publication Number Publication Date
ES451681A1 true ES451681A1 (en) 1977-11-16

Family

ID=10405091

Family Applications (1)

Application Number Title Priority Date Filing Date
ES451681A Expired ES451681A1 (en) 1975-09-20 1976-09-20 Method of manufacturing a mould for producing a lens element and mould manufactured by that method

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
JP2603098B2 (en) * 1988-04-08 1997-04-23 株式会社小糸製作所 Processing method of Fresnel step
JPH01257504A (en) * 1988-04-08 1989-10-13 Koito Mfg Co Ltd Machining method for fresnel step
US6476971B1 (en) * 2000-10-31 2002-11-05 Eastman Kodak Company Method of manufacturing a microlens array mold and a microlens array
US6402996B1 (en) * 2000-10-31 2002-06-11 Eastman Kodak Company Method of manufacturing a microlens 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
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
JPS58181512A (en) 1983-10-24
FR2324436B1 (en) 1979-01-19
DE2641615A1 (en) 1977-03-31
IN146506B (en) 1979-06-23
IT1066189B (en) 1985-03-04
JPS5239713A (en) 1977-03-28
JPS5835805B2 (en) 1983-08-05
AU1782776A (en) 1978-03-23
FR2324436A1 (en) 1977-04-15
AU500878B2 (en) 1979-06-07
DE2641615C2 (en) 1984-05-17
BR7606187A (en) 1977-06-14
GB1546805A (en) 1979-05-31

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