JPH0139336B2 - - Google Patents
Info
- Publication number
- JPH0139336B2 JPH0139336B2 JP56148518A JP14851881A JPH0139336B2 JP H0139336 B2 JPH0139336 B2 JP H0139336B2 JP 56148518 A JP56148518 A JP 56148518A JP 14851881 A JP14851881 A JP 14851881A JP H0139336 B2 JPH0139336 B2 JP H0139336B2
- Authority
- JP
- Japan
- Prior art keywords
- lens material
- temperature
- lens
- mold
- compression molding
- 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
- 239000000463 material Substances 0.000 claims description 59
- 238000000748 compression moulding Methods 0.000 claims description 31
- 239000004033 plastic Substances 0.000 claims description 29
- 229920003023 plastic Polymers 0.000 claims description 29
- 238000012662 bulk polymerization Methods 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 239000000155 melt Substances 0.000 claims description 6
- 230000009969 flowable effect Effects 0.000 claims description 4
- 239000000178 monomer Substances 0.000 claims description 4
- 229920000642 polymer Polymers 0.000 claims description 3
- 238000000034 method Methods 0.000 description 15
- 238000001816 cooling Methods 0.000 description 13
- 238000005266 casting Methods 0.000 description 9
- 238000001746 injection moulding Methods 0.000 description 6
- 238000000465 moulding Methods 0.000 description 6
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 239000011347 resin Substances 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 4
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 4
- 239000004926 polymethyl methacrylate Substances 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 239000002826 coolant Substances 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 230000009477 glass transition Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000011282 treatment Methods 0.000 description 2
- 241000282461 Canis lupus Species 0.000 description 1
- SYFOAKAXGNMQAX-UHFFFAOYSA-N bis(prop-2-enyl) carbonate;2-(2-hydroxyethoxy)ethanol Chemical compound OCCOCCO.C=CCOC(=O)OCC=C SYFOAKAXGNMQAX-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000012778 molding material Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
- B29C43/021—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles characterised by the shape of the surface
-
- 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
-
- 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)
- 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 |
|---|---|---|---|
| JP14851881A JPS5849218A (ja) | 1981-09-18 | 1981-09-18 | プラスチツクレンズの製造方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14851881A JPS5849218A (ja) | 1981-09-18 | 1981-09-18 | プラスチツクレンズの製造方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5849218A JPS5849218A (ja) | 1983-03-23 |
| JPH0139336B2 true JPH0139336B2 (fr) | 1989-08-21 |
Family
ID=15454561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14851881A Granted JPS5849218A (ja) | 1981-09-18 | 1981-09-18 | プラスチツクレンズの製造方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5849218A (fr) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5196855A (ja) * | 1975-02-20 | 1976-08-25 | Purasuchitsukurenzuno seizoho | |
| JPS5325445A (en) * | 1976-07-12 | 1978-03-09 | American Optical Corp | Method of producing thermoplastic resin spectacles lens |
-
1981
- 1981-09-18 JP JP14851881A patent/JPS5849218A/ja active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5196855A (ja) * | 1975-02-20 | 1976-08-25 | Purasuchitsukurenzuno seizoho | |
| JPS5325445A (en) * | 1976-07-12 | 1978-03-09 | American Optical Corp | Method of producing thermoplastic resin spectacles lens |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5849218A (ja) | 1983-03-23 |
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