JPS63170433U - - Google Patents
Info
- Publication number
- JPS63170433U JPS63170433U JP4692088U JP4692088U JPS63170433U JP S63170433 U JPS63170433 U JP S63170433U JP 4692088 U JP4692088 U JP 4692088U JP 4692088 U JP4692088 U JP 4692088U JP S63170433 U JPS63170433 U JP S63170433U
- Authority
- JP
- Japan
- Prior art keywords
- mold
- edge
- prototype
- shell
- outer shell
- 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.)
- Granted
Links
- 238000005266 casting Methods 0.000 claims description 5
- 238000012856 packing Methods 0.000 claims description 4
- 230000000750 progressive effect Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 claims 2
- 239000000654 additive Substances 0.000 claims 1
- 230000000996 additive effect Effects 0.000 claims 1
- 230000001419 dependent effect Effects 0.000 claims 1
- 230000000284 resting effect Effects 0.000 claims 1
- 238000007789 sealing Methods 0.000 claims 1
- 230000008092 positive effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Ophthalmology & Optometry (AREA)
- Eyeglasses (AREA)
Description
第１ａ図は、累進度数レンズの原型を製造する
ための鋳型を示す断面図、第１ｂ図は、非球面の
前面を有する鋳型外殻を示す略図、第２ａ図は、
鋳造過程後の原型を示す断面図、第２ｂ図は、第
２ａ図の原型を部分的に断面で示す斜視図、第３
図は、側方へのずれに関連して原型を側方から見
た略図、第４図は、中央に転位した利用領域を有
する円形の原型を示す断面図、第５ａ図は、正の
効果を有するレンズの場合に本考案の作用を２つ
の側面から示す略図、かつ、第５ｂ図は、正の効
果を有するレンズの場合に適合する原型を選択す
ることにより本考案の作用を示す略図である。
１……鋳型、２……原型、３……非球面を有す
る鋳型外殻、４……球面を有する鋳型外殻、５…
…弾性パツキンリング、６……球面裏面、７……
平らな支承面、８……切欠き、９……平らな鋳物
縁部、３７……楕円形の縁部曲線。
FIG. 1a is a sectional view showing a mold for manufacturing a prototype of a progressive power lens, FIG. 1b is a schematic view showing a mold shell having an aspherical front surface, and FIG. 2a is a
FIG. 2b is a sectional view showing the prototype after the casting process, and FIG. 3 is a perspective view partially showing the prototype in FIG.
Figure 4 is a schematic lateral view of the prototype in relation to lateral displacement; Figure 4 is a sectional view showing a circular prototype with a centrally displaced utilization area; Figure 5a is a positive effect. FIG. 5b is a schematic diagram showing the operation of the present invention from two aspects in the case of a lens having a positive effect, and FIG. be. 1... Mold, 2... Original model, 3... Mold shell having an aspherical surface, 4... Mold outer shell having a spherical surface, 5...
...Elastic packing ring, 6... Spherical back surface, 7...
Flat bearing surface, 8... Notch, 9... Flat cast edge, 37... Oval edge curve.
Claims (1)
鋳型外殻３とからなる、異なる断面で異なる光学
的効果を有する、眼鏡レンズの原型２を製造する
ための鋳型１において、非球面を有する鋳型外殻
３が水平方向に走る平らな縁部９を有し、この縁
部が少なくとも部分的に鋳型空間を半径方向に制
限する弾性パツキンリング５のための支承面とし
て使用され、この場合鋳物縁部９の平らな面に対
して垂直な断面で原型２の幾何学的中心点を通つ
てタボー累進度数の遅い９０°線の方向に鋳物縁
部９がほぼ同じ幅を有し、これに対して垂直な断
面で鋳物縁部９が第２のほぼ同じ幅を有し、この
場合相対する幅の差δは、付加力Ａｄｄおよび対
物レンズ側の基本曲率 ＧＫを有するδ≦０．５Ａｄｄ・（１−ＧＫ−
５１０） mmによつてｄｐｔで表わされることを特徴とする
、眼鏡レンズの原型を製造するための鋳型。 ２ 同心点の鼻先へのずれが存在する、請求項１
記載の鋳型。 ３ ある程度の最小直径が鋳型外殻３の水平方向
の研磨面の高さによつて付加的に依存しないよう
に保証されている、請求項１記載の鋳型。 ４ 弾性パツキンリング５が鋳型１に対して鋳型
外殻３，４の間で累進度数面の鋳型外殻３のため
の平らな支承面７を有し、かつ第２鋳型外殻４の
球状区間の球面状裏面で緊密に載置されている、
請求項１記載の鋳型。 ５ パツキンリング５が累進度数面の鋳型外殻３
に接してその中心領域によつて規定される場合よ
りも小さい支承面を有し、パツキンリング５の切
欠き８が鋳型の内側に依存している、請求項１記
載の鋳型。 ６ 球面を有する鋳型外殻４と、非球面を有する
鋳型外殻３とからなる、異なる断面で異なる光学
的効果を有する、眼鏡レンズの原型２を製造する
ための鋳型１からの原型２において、原型２が平
らな鋳物縁部９の除去後に楕円形の縁部曲線３７
を有することを特徴とする、原型。 ７ 楕円形の縁部曲線が基本曲率および付加的と
は無関係である、請求項６記載の原型。 ８ 楕円形の縁部曲線の半軸線が最小で８mmおよ
び最大で１２mmの差を有する、請求項６記載の原
型。[Claims for Utility Model Registration] 1. A method for producing a prototype 2 of an eyeglass lens, which has different cross-sections and different optical effects, and is composed of a mold outer shell 4 having a spherical surface and a mold outer shell 3 having an aspheric surface. In the mold 1, the mold shell 3 with an aspherical surface has a flat edge 9 running horizontally, which edge radially limits the mold space at least partially as a support for an elastic packing ring 5. In this case, the casting edge 9 is approximately in the direction of a 90° line of slow Tabor progression through the geometric center point of the master 2 in a section perpendicular to the flat surface of the casting edge 9. having the same width and in a section perpendicular to this, the casting edge 9 has a second approximately equal width, in which case the difference between the opposing widths δ is determined by the additional force Add and the basic curvature on the objective side GK δ≦0.5Add・(1-GK-
510) A mold for producing a prototype of a spectacle lens, characterized in that it is expressed in mm in dpt. 2 Claim 1 in which there is a shift of the concentric point toward the tip of the nose
The mold described. 3. The mold as claimed in claim 1, wherein a certain minimum diameter is ensured not to be additionally dependent on the height of the horizontal polished surface of the mold shell. 4. An elastic sealing ring 5 has a flat bearing surface 7 for the mold shell 3 in a progressive power plane between the mold shells 3, 4 relative to the mold 1 and a spherical section of the second mold shell 4. tightly resting on the spherical back surface of the
The mold according to claim 1. 5 Mold outer shell 3 whose packing ring 5 has a progressive power surface
2. The mold according to claim 1, wherein the recess 8 of the packing ring 5 depends on the inside of the mold. 6. In a master mold 2 from a mold 1 for producing a master mold 2 of an eyeglass lens, which has different optical effects in different cross sections, consisting of a mold outer shell 4 having a spherical surface and a mold outer shell 3 having an aspherical surface, Oval edge curve 37 after removal of flat casting edge 9 of master form 2
A prototype characterized by having. 7. Prototype according to claim 6, wherein the elliptical edge curve is independent of the base curvature and the additive. 8. Prototype according to claim 6, wherein the semi-axes of the elliptical edge curves have a difference of at least 8 mm and at most 12 mm.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE8705203U DE8705203U1 (en) | 1987-04-10 | 1987-04-10 | Casting mold for producing a blank mold for spectacle lenses |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63170433U true JPS63170433U (en) | 1988-11-07 |
| JPH0523542Y2 JPH0523542Y2 (en) | 1993-06-16 |
Family
ID=6806830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4692088U Expired - Lifetime JPH0523542Y2 (en) | 1987-04-10 | 1988-04-08 |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPH0523542Y2 (en) |
| AU (1) | AU606402B2 (en) |
| DE (1) | DE8705203U1 (en) |
| FR (1) | FR2613709B3 (en) |
| IT (1) | IT214122Z2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3690520B1 (en) | 2019-01-30 | 2024-06-12 | Carl Zeiss Vision International GmbH | Finished uncut spectacle lens, semi-finished lens blank and method of manufacturing a spectacle lens |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4696692A (en) * | 1986-12-10 | 1987-09-29 | Corning Glass Works | Kinematically determinate glass pressing mold assembly and method of use |
-
1987
- 1987-04-10 DE DE8705203U patent/DE8705203U1/en not_active Expired
-
1988
- 1988-04-05 AU AU14322/88A patent/AU606402B2/en not_active Ceased
- 1988-04-07 FR FR8804593A patent/FR2613709B3/en not_active Expired
- 1988-04-08 JP JP4692088U patent/JPH0523542Y2/ja not_active Expired - Lifetime
- 1988-04-08 IT IT3563388U patent/IT214122Z2/en active
Also Published As
| Publication number | Publication date |
|---|---|
| FR2613709B3 (en) | 1989-10-13 |
| FR2613709A1 (en) | 1988-10-14 |
| JPH0523542Y2 (en) | 1993-06-16 |
| IT8835633V0 (en) | 1988-04-08 |
| AU1432288A (en) | 1988-10-13 |
| AU606402B2 (en) | 1991-02-07 |
| DE8705203U1 (en) | 1987-07-23 |
| IT214122Z2 (en) | 1990-04-02 |
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