JPS5835805B2 - レンズ装置製造用鋳型の製造方法 - Google Patents

レンズ装置製造用鋳型の製造方法

Info

Publication number
JPS5835805B2
JPS5835805B2 JP51111928A JP11192876A JPS5835805B2 JP S5835805 B2 JPS5835805 B2 JP S5835805B2 JP 51111928 A JP51111928 A JP 51111928A JP 11192876 A JP11192876 A JP 11192876A JP S5835805 B2 JPS5835805 B2 JP S5835805B2
Authority
JP
Japan
Prior art keywords
manufacturing
mold
cutting blade
mold plate
rotary cutting
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
JP51111928A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5239713A (en
Inventor
スタンリー・グリーン
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 JPS5239713A publication Critical patent/JPS5239713A/ja
Publication of JPS5835805B2 publication Critical patent/JPS5835805B2/ja
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)
JP51111928A 1975-09-20 1976-09-20 レンズ装置製造用鋳型の製造方法 Expired JPS5835805B2 (ja)

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 (2)

Publication Number Publication Date
JPS5239713A JPS5239713A (en) 1977-03-28
JPS5835805B2 true JPS5835805B2 (ja) 1983-08-05

Family

ID=10405091

Family Applications (2)

Application Number Title Priority Date Filing Date
JP51111928A Expired JPS5835805B2 (ja) 1975-09-20 1976-09-20 レンズ装置製造用鋳型の製造方法
JP58033003A Pending JPS58181512A (ja) 1975-09-20 1983-03-02 レンズ装置製造用鋳型の製造方法

Family Applications After (1)

Application Number Title Priority Date Filing Date
JP58033003A Pending JPS58181512A (ja) 1975-09-20 1983-03-02 レンズ装置製造用鋳型の製造方法

Country Status (9)

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

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

Also Published As

Publication number Publication date
DE2641615C2 (de) 1984-05-17
FR2324436B1 (enFirst) 1979-01-19
AU1782776A (en) 1978-03-23
DE2641615A1 (de) 1977-03-31
JPS58181512A (ja) 1983-10-24
JPS5239713A (en) 1977-03-28
AU500878B2 (en) 1979-06-07
BR7606187A (pt) 1977-06-14
ES451681A1 (es) 1977-11-16
GB1546805A (en) 1979-05-31
IN146506B (enFirst) 1979-06-23
IT1066189B (it) 1985-03-04
FR2324436A1 (fr) 1977-04-15

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