IN146506B - - Google Patents
Info
- Publication number
- IN146506B IN146506B IN1605/CAL/76A IN1605CA1976A IN146506B IN 146506 B IN146506 B IN 146506B IN 1605CA1976 A IN1605CA1976 A IN 1605CA1976A IN 146506 B IN146506 B IN 146506B
- Authority
- IN
- India
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)
- Optical Elements Other Than Lenses (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
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 |
|---|---|
| IN146506B true IN146506B (en) | 1979-06-23 |
Family
ID=10405091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IN1605/CAL/76A IN146506B (en) | 1975-09-20 | 1976-08-31 |
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)
| 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 |
| 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 |
| 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)
| 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 BR BR7606187A patent/BR7606187A/en unknown
- 1976-09-17 IT IT51327/76A patent/IT1066189B/en active
- 1976-09-17 FR FR7627979A patent/FR2324436A1/en active Granted
- 1976-09-20 ES ES451681A patent/ES451681A1/en not_active Expired
- 1976-09-20 JP JP51111928A patent/JPS5835805B2/en not_active Expired
-
1983
- 1983-03-02 JP JP58033003A patent/JPS58181512A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE2641615C2 (en) | 1984-05-17 |
| AU1782776A (en) | 1978-03-23 |
| JPS5835805B2 (en) | 1983-08-05 |
| IT1066189B (en) | 1985-03-04 |
| FR2324436B1 (en) | 1979-01-19 |
| JPS58181512A (en) | 1983-10-24 |
| AU500878B2 (en) | 1979-06-07 |
| JPS5239713A (en) | 1977-03-28 |
| GB1546805A (en) | 1979-05-31 |
| FR2324436A1 (en) | 1977-04-15 |
| ES451681A1 (en) | 1977-11-16 |
| BR7606187A (en) | 1977-06-14 |
| DE2641615A1 (en) | 1977-03-31 |