JPH0422903U - - Google Patents
Info
- Publication number
- JPH0422903U JPH0422903U JP6342790U JP6342790U JPH0422903U JP H0422903 U JPH0422903 U JP H0422903U JP 6342790 U JP6342790 U JP 6342790U JP 6342790 U JP6342790 U JP 6342790U JP H0422903 U JPH0422903 U JP H0422903U
- Authority
- JP
- Japan
- Prior art keywords
- lens
- shape
- reference point
- distance vision
- circle
- 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
- 230000000750 progressive effect Effects 0.000 claims description 4
- 208000001491 myopia Diseases 0.000 claims description 3
Landscapes
- Eyeglasses (AREA)
Description
第1図は本実施例の検眼用累進多焦点レンズ1
と環状リム部2とを組みつけた試験レンズ枠3の
平面図、第2図は第1図のX−X線断面図、第3
図は公知の眼鏡試験枠の斜視図、第4図は従来技
術の検眼レンズの平面図。
1……検眼用の累進多焦点レンズ、2……環状
リム部、3……試験枠レンズ枠、4……水平幾何
中心線、5……累進多焦点レンズの垂直基準線、
6a……遠用基準点、6……遠用アイポイント、
8……近用アイポイント、11……遠用部上端、
12……近用部上端、13……連結部、14……
レンズ把持部材、20,……試験枠。
FIG. 1 shows a progressive multifocal lens for optometry according to this embodiment.
FIG. 2 is a plan view of the test lens frame 3 assembled with the annular rim portion 2, and FIG.
The figure is a perspective view of a known eyeglass test frame, and FIG. 4 is a plan view of a conventional optometric lens. 1... Progressive multifocal lens for optometry, 2... Annular rim portion, 3... Test frame lens frame, 4... Horizontal geometric center line, 5... Vertical reference line of progressive multifocal lens,
6a...Distance reference point, 6...Distance eye point,
8...Near eye point, 11...Distance part upper end,
12... Upper end of near vision section, 13... Connecting part, 14...
Lens gripping member, 20, ... test frame.
Claims (1)
眼鏡試験枠に装着するための検眼用累進多焦点レ
ンズであつて、該レンズ形状が縦長の非円形状で
あり、該レンズの縦上方に遠用基準点を有する遠
用部と該レンズの縦下方に近用基準点を有する近
用部とを備え、遠用部の上端部の形状を、遠用基
準点を中心とした円の一部とし、かつ該レンズ枠
部の形状と合致させたことを特徴とする検眼用多
焦点レンズ。 A progressive multifocal lens for optometry to be attached to an eyeglass test frame whose lens frame shape is a circle or a part of a circle, and the lens shape is a vertically elongated non-circular shape, and The lens has a distance vision part having a distance vision reference point and a near vision part having a near vision reference point vertically below the lens, and the shape of the upper end of the distance vision part is shaped like a circle centered on the distance vision reference point. A multifocal lens for optometry, characterized in that the lens frame has a shape that matches the shape of the lens frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990063427U JP2522980Y2 (en) | 1990-06-15 | 1990-06-15 | Optometry lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990063427U JP2522980Y2 (en) | 1990-06-15 | 1990-06-15 | Optometry lens |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0422903U true JPH0422903U (en) | 1992-02-25 |
| JP2522980Y2 JP2522980Y2 (en) | 1997-01-22 |
Family
ID=31593468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990063427U Expired - Lifetime JP2522980Y2 (en) | 1990-06-15 | 1990-06-15 | Optometry lens |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2522980Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0499901U (en) * | 1991-01-30 | 1992-08-28 | ||
| JPH04250604A (en) * | 1991-01-25 | 1992-09-07 | Toshiba Corp | Transformer core |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60140316A (en) * | 1983-12-28 | 1985-07-25 | Tokyo Kuroobaa Kk | Test lens of test frame for eye examination |
-
1990
- 1990-06-15 JP JP1990063427U patent/JP2522980Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60140316A (en) * | 1983-12-28 | 1985-07-25 | Tokyo Kuroobaa Kk | Test lens of test frame for eye examination |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04250604A (en) * | 1991-01-25 | 1992-09-07 | Toshiba Corp | Transformer core |
| JPH0499901U (en) * | 1991-01-30 | 1992-08-28 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2522980Y2 (en) | 1997-01-22 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |