BR7606187A - Matriz para a producao de uma lente de lampada e processo para fabricacao dessa matriz - Google Patents

Matriz para a producao de uma lente de lampada e processo para fabricacao dessa matriz

Info

Publication number
BR7606187A
BR7606187A BR7606187A BR7606187A BR7606187A BR 7606187 A BR7606187 A BR 7606187A BR 7606187 A BR7606187 A BR 7606187A BR 7606187 A BR7606187 A BR 7606187A BR 7606187 A BR7606187 A BR 7606187A
Authority
BR
Brazil
Prior art keywords
matrix
manufacturing
production
lamp lens
lens
Prior art date
Application number
BR7606187A
Other languages
English (en)
Inventor
S Green
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 BR7606187A publication Critical patent/BR7606187A/pt

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)
  • Milling Processes (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (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)
BR7606187A 1975-09-20 1976-09-17 Matriz para a producao de uma lente de lampada e processo para fabricacao dessa matriz BR7606187A (pt)

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
BR7606187A true BR7606187A (pt) 1977-06-14

Family

ID=10405091

Family Applications (1)

Application Number Title Priority Date Filing Date
BR7606187A BR7606187A (pt) 1975-09-20 1976-09-17 Matriz para a producao de uma lente de lampada e processo para fabricacao dessa matriz

Country Status (9)

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

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 (ja) * 1982-05-27 1983-12-01 株式会社小糸製作所 車輌用前照灯
DE3527804A1 (de) * 1985-08-02 1987-02-05 Bosch Gmbh Robert Scheinwerfer, insbesondere arbeitsscheinwerfer fuer fahrzeuge
AT386080B (de) * 1986-03-07 1988-06-27 Futuritwerk Ag Lichtstreukoerper zur intensitaetsverteilung von licht
JP2603098B2 (ja) * 1988-04-08 1997-04-23 株式会社小糸製作所 フレネルステップの加工方法
JPH01257504A (ja) * 1988-04-08 1989-10-13 Koito Mfg Co Ltd フレネルステップの加工方法
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 (fr) * 2002-12-20 2015-07-10 Valeo Vision Dispositif d'eclairage et/ou de signalisation du type projecteur ou feu pour vehicule automobile

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 (pt) * 1972-10-17 1977-11-22
JPS49151274U (pt) * 1973-04-30 1974-12-27

Also Published As

Publication number Publication date
AU500878B2 (en) 1979-06-07
DE2641615A1 (de) 1977-03-31
IT1066189B (it) 1985-03-04
IN146506B (pt) 1979-06-23
FR2324436A1 (fr) 1977-04-15
DE2641615C2 (de) 1984-05-17
ES451681A1 (es) 1977-11-16
JPS58181512A (ja) 1983-10-24
FR2324436B1 (pt) 1979-01-19
GB1546805A (en) 1979-05-31
JPS5239713A (en) 1977-03-28
JPS5835805B2 (ja) 1983-08-05
AU1782776A (en) 1978-03-23

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