ITMI20000822A0 - Metodo e apparecchiatura per la realizzazione di lenti spesse in materiale plastico - Google Patents
Metodo e apparecchiatura per la realizzazione di lenti spesse in materiale plasticoInfo
- Publication number
- ITMI20000822A0 ITMI20000822A0 IT2000MI000822A ITMI20000822A ITMI20000822A0 IT MI20000822 A0 ITMI20000822 A0 IT MI20000822A0 IT 2000MI000822 A IT2000MI000822 A IT 2000MI000822A IT MI20000822 A ITMI20000822 A IT MI20000822A IT MI20000822 A0 ITMI20000822 A0 IT MI20000822A0
- Authority
- IT
- Italy
- Prior art keywords
- equipment
- plastic material
- making thick
- thick lenses
- lenses
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
- B29C45/28—Closure devices therefor
- B29C45/2806—Closure devices therefor consisting of needle valve systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0025—Preventing defects on the moulded article, e.g. weld lines, shrinkage marks
- B29C2045/0027—Gate or gate mark locations
- B29C2045/0029—Gate or gate mark locations gates on the central optical axis of lenses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2011/00—Optical elements, e.g. lenses, prisms
- B29L2011/0016—Lenses
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Eyeglasses (AREA)
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT2000MI000822A IT1317239B1 (it) | 2000-04-13 | 2000-04-13 | Metodo e apparecchiatura per la realizzazione di lenti spesse inmateriale plastico. |
DE60103690T DE60103690D1 (de) | 2000-04-13 | 2001-04-10 | Verfahren und Vorrichtung zur Herstellung von dicken Linsen aus Kunststoffmaterial |
AT01108934T ATE268681T1 (de) | 2000-04-13 | 2001-04-10 | Verfahren und vorrichtung zur herstellung von dicken linsen aus kunststoffmaterial |
BR0101925-2A BR0101925A (pt) | 2000-04-13 | 2001-04-10 | Método e aparelho para a realização de lentes espessas de material plástico |
EP01108934A EP1145818B1 (en) | 2000-04-13 | 2001-04-10 | Method and device for producing thick lenses of plastic material |
US09/834,754 US20020000679A1 (en) | 2000-04-13 | 2001-04-12 | Method and device for producing thick lenses of plastic material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT2000MI000822A IT1317239B1 (it) | 2000-04-13 | 2000-04-13 | Metodo e apparecchiatura per la realizzazione di lenti spesse inmateriale plastico. |
Publications (3)
Publication Number | Publication Date |
---|---|
ITMI20000822A0 true ITMI20000822A0 (it) | 2000-04-13 |
ITMI20000822A1 ITMI20000822A1 (it) | 2001-10-13 |
IT1317239B1 IT1317239B1 (it) | 2003-05-27 |
Family
ID=11444850
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT2000MI000822A IT1317239B1 (it) | 2000-04-13 | 2000-04-13 | Metodo e apparecchiatura per la realizzazione di lenti spesse inmateriale plastico. |
Country Status (6)
Country | Link |
---|---|
US (1) | US20020000679A1 (it) |
EP (1) | EP1145818B1 (it) |
AT (1) | ATE268681T1 (it) |
BR (1) | BR0101925A (it) |
DE (1) | DE60103690D1 (it) |
IT (1) | IT1317239B1 (it) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10507532B2 (en) * | 2015-09-02 | 2019-12-17 | Wielandts Upmt | Chuck for a high precision machine tool |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61258718A (ja) * | 1985-05-10 | 1986-11-17 | Matsushita Electric Ind Co Ltd | プラスチツク光学装置 |
CA1252973A (en) * | 1986-12-01 | 1989-04-25 | Harald H. Schmidt | Side mounted manifold block for variable orientation of injection molding nozzle |
US5716540A (en) * | 1996-02-09 | 1998-02-10 | Johnson & Johnson Vision Products, Inc. | Apparatus and method for producing center gated lens molds for contact lens manufacture |
JP3395031B2 (ja) * | 1996-08-27 | 2003-04-07 | コニカ株式会社 | レンズ部品 |
-
2000
- 2000-04-13 IT IT2000MI000822A patent/IT1317239B1/it active
-
2001
- 2001-04-10 BR BR0101925-2A patent/BR0101925A/pt not_active IP Right Cessation
- 2001-04-10 EP EP01108934A patent/EP1145818B1/en not_active Expired - Lifetime
- 2001-04-10 DE DE60103690T patent/DE60103690D1/de not_active Expired - Lifetime
- 2001-04-10 AT AT01108934T patent/ATE268681T1/de not_active IP Right Cessation
- 2001-04-12 US US09/834,754 patent/US20020000679A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
ATE268681T1 (de) | 2004-06-15 |
EP1145818A2 (en) | 2001-10-17 |
BR0101925A (pt) | 2003-05-06 |
EP1145818B1 (en) | 2004-06-09 |
US20020000679A1 (en) | 2002-01-03 |
IT1317239B1 (it) | 2003-05-27 |
DE60103690D1 (de) | 2004-07-15 |
EP1145818A3 (en) | 2002-01-30 |
ITMI20000822A1 (it) | 2001-10-13 |
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