JPH0476932B2 - - Google Patents
Info
- Publication number
- JPH0476932B2 JPH0476932B2 JP63309930A JP30993088A JPH0476932B2 JP H0476932 B2 JPH0476932 B2 JP H0476932B2 JP 63309930 A JP63309930 A JP 63309930A JP 30993088 A JP30993088 A JP 30993088A JP H0476932 B2 JPH0476932 B2 JP H0476932B2
- Authority
- JP
- Japan
- Prior art keywords
- mold
- molding
- glass material
- functional surface
- relief portion
- 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 - Lifetime
Links
- 239000011521 glass Substances 0.000 claims description 39
- 238000000465 moulding Methods 0.000 claims description 31
- 239000000463 material Substances 0.000 claims description 28
- 230000003287 optical effect Effects 0.000 claims description 17
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000007423 decrease Effects 0.000 description 6
- 238000001816 cooling Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B11/00—Pressing molten glass or performed glass reheated to equivalent low viscosity without blowing
- C03B11/06—Construction of plunger or mould
- C03B11/08—Construction of plunger or mould for making solid articles, e.g. lenses
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2215/00—Press-moulding glass
- C03B2215/40—Product characteristics
- C03B2215/46—Lenses, e.g. bi-convex
- C03B2215/48—Convex-concave
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP30993088A JPH02157130A (ja) | 1988-12-09 | 1988-12-09 | レンズの成形用型 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP30993088A JPH02157130A (ja) | 1988-12-09 | 1988-12-09 | レンズの成形用型 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH02157130A JPH02157130A (ja) | 1990-06-15 |
JPH0476932B2 true JPH0476932B2 (de) | 1992-12-07 |
Family
ID=17999057
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP30993088A Granted JPH02157130A (ja) | 1988-12-09 | 1988-12-09 | レンズの成形用型 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH02157130A (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3224472B2 (ja) * | 1993-05-26 | 2001-10-29 | キヤノン株式会社 | 光学レンズ及びその成形用型 |
JP4467671B2 (ja) * | 1998-08-24 | 2010-05-26 | キヤノン株式会社 | 光学素子の成形装置及び成形方法 |
KR100848761B1 (ko) * | 2001-07-25 | 2008-07-28 | 가부시키가이샤 아사히오프티카루 | 수지렌즈의 반제품과 그 제조장치 및 제조방법 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS616139A (ja) * | 1984-06-15 | 1986-01-11 | Hoya Corp | 軸ずれの少ないレンズをプレス成形する方法 |
JPS61290012A (ja) * | 1985-06-18 | 1986-12-20 | Nippon Contact Lens:Kk | レンズ成形装置 |
-
1988
- 1988-12-09 JP JP30993088A patent/JPH02157130A/ja active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS616139A (ja) * | 1984-06-15 | 1986-01-11 | Hoya Corp | 軸ずれの少ないレンズをプレス成形する方法 |
JPS61290012A (ja) * | 1985-06-18 | 1986-12-20 | Nippon Contact Lens:Kk | レンズ成形装置 |
Also Published As
Publication number | Publication date |
---|---|
JPH02157130A (ja) | 1990-06-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20081207 Year of fee payment: 16 |
|
LAPS | Cancellation because of no payment of annual fees |