JPH03122816U - - Google Patents
Info
- Publication number
- JPH03122816U JPH03122816U JP3323590U JP3323590U JPH03122816U JP H03122816 U JPH03122816 U JP H03122816U JP 3323590 U JP3323590 U JP 3323590U JP 3323590 U JP3323590 U JP 3323590U JP H03122816 U JPH03122816 U JP H03122816U
- Authority
- JP
- Japan
- Prior art keywords
- artificial
- lens
- astigmatism
- cylindrical
- astigmatism according
- 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.)
- Pending
Links
- 210000000695 crystalline len Anatomy 0.000 claims description 6
- 201000009310 astigmatism Diseases 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 4
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Prostheses (AREA)
Description
第１図、及び、第２図は実施例の乱視用人工水
晶体を示す説明図であり、第３図は斜交円筒レン
ズを表す原理図である。第４図は円筒面を加工す
るマシニングセンタの一部を示す斜視図である。
第５図はトーリツク面を持つ人工水晶体の説明図
であり、第６図はダイヤモンドホイールによるト
ーリツク面の加工の様子を示す説明図である。
FIG. 1 and FIG. 2 are explanatory diagrams showing an artificial crystalline lens for astigmatism according to an embodiment, and FIG. 3 is a principle diagram showing an oblique cylindrical lens. FIG. 4 is a perspective view showing a part of a machining center that processes a cylindrical surface.
FIG. 5 is an explanatory diagram of an artificial crystalline lens having a toric surface, and FIG. 6 is an explanatory diagram showing how the toric surface is processed using a diamond wheel.
Claims (1)
後面からなる２面のうち少なくとも一面は円筒面
であることを特徴とする乱視用人工水晶体。 (2) 他の一面は球面であることを特徴とする請
求項１記載の乱視用人工水晶体。 (3) 他の一面も円筒面であることを特徴とする
請求項１記載の乱視用人工水晶体。[Claims for Utility Model Registration] (1) An artificial crystalline lens for astigmatism correction, which is characterized in that at least one of two surfaces consisting of an anterior surface and a posterior surface is a cylindrical surface. (2) The artificial lens for astigmatism according to claim 1, wherein the other surface is a spherical surface. (3) The artificial lens for astigmatism according to claim 1, wherein the other surface is also a cylindrical surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3323590U JPH03122816U (en) | 1990-03-29 | 1990-03-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3323590U JPH03122816U (en) | 1990-03-29 | 1990-03-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03122816U true JPH03122816U (en) | 1991-12-13 |
Family
ID=31536737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3323590U Pending JPH03122816U (en) | 1990-03-29 | 1990-03-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03122816U (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02189146A (en) * | 1988-10-21 | 1990-07-25 | Genjiro Omi | Contact lens |
| JPH02211119A (en) * | 1988-10-21 | 1990-08-22 | Genjiro Omi | Astigmatism degree of toric type eye lens and method for determining degree of eye lens |
| JPH03231656A (en) * | 1990-02-07 | 1991-10-15 | Akitsugu Kawano | Artificial eye lens affiliated with astigmatism |
-
1990
- 1990-03-29 JP JP3323590U patent/JPH03122816U/ja active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02189146A (en) * | 1988-10-21 | 1990-07-25 | Genjiro Omi | Contact lens |
| JPH02211119A (en) * | 1988-10-21 | 1990-08-22 | Genjiro Omi | Astigmatism degree of toric type eye lens and method for determining degree of eye lens |
| JPH03231656A (en) * | 1990-02-07 | 1991-10-15 | Akitsugu Kawano | Artificial eye lens affiliated with astigmatism |