FR2324436A1 - MOLD FOR THE REALIZATION OF A LENS ELEMENT FOR A HEADLIGHT AND ITS MANUFACTURING PROCESS - Google Patents

MOLD FOR THE REALIZATION OF A LENS ELEMENT FOR A HEADLIGHT AND ITS MANUFACTURING PROCESS

Info

Publication number: FR2324436A1
Authority: FR; France
Prior art keywords: headlight; realization; mold; manufacturing process; lens element
Prior art date: 1975-09-20
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.): Granted

Application number

FR7627979A

Other languages

French (fr)

Other versions

FR2324436B1 (en

Inventor

Stanley 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.)

1975-09-20

Filing date

1976-09-17

Publication date

1977-04-15

1976-09-17 Application filed by Lucas Industries Ltd filed Critical Lucas Industries Ltd

1977-04-15 Publication of FR2324436A1 publication Critical patent/FR2324436A1/en

1979-01-19 Application granted granted Critical

1979-01-19 Publication of FR2324436B1 publication Critical patent/FR2324436B1/fr

Status Granted 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)
Milling Processes (AREA)
Non-Portable Lighting Devices Or Systems Thereof (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)

FR7627979A 1975-09-20 1976-09-17 MOLD FOR THE REALIZATION OF A LENS ELEMENT FOR A HEADLIGHT AND ITS MANUFACTURING PROCESS Granted FR2324436A1 (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 (2)

Publication Number	Publication Date
FR2324436A1 true FR2324436A1 (en)	1977-04-15
FR2324436B1 FR2324436B1 (en)	1979-01-19

Family

ID=10405091

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR7627979A Granted FR2324436A1 (en)	1975-09-20	1976-09-17	MOLD FOR THE REALIZATION OF A LENS ELEMENT FOR A HEADLIGHT AND ITS MANUFACTURING PROCESS

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)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2585803A1 (en) *	1985-08-02	1987-02-06	Bosch Gmbh Robert	Headlamp for motor vehicle with aspheric lens element

Families Citing this family (9)

* 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
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
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
US6476971B1 (en) *	2000-10-31	2002-11-05	Eastman Kodak Company	Method of manufacturing a microlens array mold 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

1975
- 1975-09-20 GB GB38691/75A patent/GB1546805A/en not_active Expired
1976
- 1976-08-31 IN IN1605/CAL/76A patent/IN146506B/en unknown
- 1976-09-16 DE DE2641615A patent/DE2641615C2/en not_active Expired
- 1976-09-16 AU AU17827/76A patent/AU500878B2/en not_active Expired
- 1976-09-17 IT IT51327/76A patent/IT1066189B/en active
- 1976-09-17 FR FR7627979A patent/FR2324436A1/en active Granted
- 1976-09-17 BR BR7606187A patent/BR7606187A/en unknown
- 1976-09-20 JP JP51111928A patent/JPS5835805B2/en not_active Expired
- 1976-09-20 ES ES451681A patent/ES451681A1/en not_active Expired
1983
- 1983-03-02 JP JP58033003A patent/JPS58181512A/en active Pending

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2585803A1 (en) *	1985-08-02	1987-02-06	Bosch Gmbh Robert	Headlamp for motor vehicle with aspheric lens element

Also Published As

Publication number	Publication date
JPS58181512A (en)	1983-10-24
ES451681A1 (en)	1977-11-16
JPS5239713A (en)	1977-03-28
AU500878B2 (en)	1979-06-07
AU1782776A (en)	1978-03-23
DE2641615A1 (en)	1977-03-31
DE2641615C2 (en)	1984-05-17
GB1546805A (en)	1979-05-31
IT1066189B (en)	1985-03-04
JPS5835805B2 (en)	1983-08-05
IN146506B (en)	1979-06-23
BR7606187A (en)	1977-06-14
FR2324436B1 (en)	1979-01-19

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Legal Events

Date	Code	Title	Description
1989-07-21	ST	Notification of lapse