JPS642483B2 - - Google Patents
Info
- Publication number
- JPS642483B2 JPS642483B2 JP3692780A JP3692780A JPS642483B2 JP S642483 B2 JPS642483 B2 JP S642483B2 JP 3692780 A JP3692780 A JP 3692780A JP 3692780 A JP3692780 A JP 3692780A JP S642483 B2 JPS642483 B2 JP S642483B2
- Authority
- JP
- Japan
- Prior art keywords
- mold
- molds
- tape
- plastic
- cavity
- 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
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
- B29D11/0048—Moulds for lenses
- B29D11/00528—Consisting of two mould halves joined by an annular gasket
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- 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/0038—Moulds or cores; Details thereof or accessories therefor with sealing means or the like
-
- 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
- B29D11/00413—Production of simple or compound lenses made by moulding between two mould parts which are not in direct contact with one another, e.g. comprising a seal between or on the edges
-
- 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
- B29L2031/00—Other particular articles
- B29L2031/76—Office equipment or accessories
- B29L2031/7602—Maps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Ophthalmology & Optometry (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3692780A JPS56135030A (en) | 1980-03-25 | 1980-03-25 | Cast molding method of plastic lens |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3692780A JPS56135030A (en) | 1980-03-25 | 1980-03-25 | Cast molding method of plastic lens |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56135030A JPS56135030A (en) | 1981-10-22 |
JPS642483B2 true JPS642483B2 (enrdf_load_stackoverflow) | 1989-01-17 |
Family
ID=12483382
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3692780A Granted JPS56135030A (en) | 1980-03-25 | 1980-03-25 | Cast molding method of plastic lens |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56135030A (enrdf_load_stackoverflow) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61281101A (ja) * | 1985-06-07 | 1986-12-11 | Toray Ind Inc | 注型重合方法 |
JPH04148906A (ja) * | 1990-10-12 | 1992-05-21 | Seiko Epson Corp | プラスチックレンズの成形方法 |
US5358672A (en) * | 1992-06-08 | 1994-10-25 | Innotech, Inc. | Method for removing finished articles from glass, plastic or metallic molds |
-
1980
- 1980-03-25 JP JP3692780A patent/JPS56135030A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS56135030A (en) | 1981-10-22 |