JPH0422902U - - Google Patents
Info
- Publication number
- JPH0422902U JPH0422902U JP6342690U JP6342690U JPH0422902U JP H0422902 U JPH0422902 U JP H0422902U JP 6342690 U JP6342690 U JP 6342690U JP 6342690 U JP6342690 U JP 6342690U JP H0422902 U JPH0422902 U JP H0422902U
- Authority
- JP
- Japan
- Prior art keywords
- lens
- frame
- geometric center
- reference point
- distance
- 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 6
- 208000001491 myopia Diseases 0.000 claims 3
- 230000003287 optical effect Effects 0.000 description 1
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、第1図の検眼レンズと従来の検眼レンズと
を試験枠に装着した状態で比較した図、第4図は
公知の眼鏡試験枠の斜視図、第5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、
6……累進多焦点レンズの光学中心、7……遠用
アイポイント、9……近用アイポイント、11…
…遠用部上端、12……近用部上端、13,14
……半円部、15……連結部、16……レンズ把
持部材、20,200……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 figures are a comparison of the optometric lens shown in Fig. 1 and a conventional optometric lens attached to a test frame, Fig. 4 is a perspective view of a known eyeglass test frame, and Fig. 5 is a comparison of the conventional test lens. Plan view. 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,
6...Optical center of progressive multifocal lens, 7...Distance eye point, 9...Near eye point, 11...
...Distance part upper end, 12...Near part upper end, 13, 14
...Semicircular part, 15...Connection part, 16...Lens gripping member, 20,200...Test frame.
Claims (1)
焦点レンズであつて、該レンズは、その幾何中心
位置が、該試験枠のレンズ枠の幾何中心位置に合
致するよう装用されるものであり、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、該遠用基準点
を該レンズの幾何中心点から上方の所定の距離に
固設したことを特徴とする検眼用多焦点レンズ。 (2) 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、該レンズは上平レンズであ
り、その幾何中心位置が、該試験枠のレンズ枠の
幾何中心位置に合致するよう装用されるものであ
り、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
えたことを特徴とする検眼用多焦点レンズ。[Claims for Utility Model Registration] (1) A progressive multifocal lens for optometry to be attached to an eyeglass examination frame, which lens has its geometric center located at the geometric center of the lens frame of the examination frame. The lens shape is a vertically elongated non-circular shape, and has a distance part having a distance reference point vertically above the lens and a near vision reference point vertically below the lens. 1. A multifocal lens for optometry, characterized in that the distance reference point is fixed at a predetermined distance above the geometric center point of the lens. (2) A progressive multifocal lens for optometry to be attached to an eyeglass test frame, which lens is a flat top lens, and whose geometric center position matches the geometric center position of the lens frame of the test frame. The lens has a vertically elongated non-circular shape, and has a distance part having a distance reference point vertically above the lens and a near vision part having a near vision reference point vertically below the lens. A multifocal lens for optometry, characterized by comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990063426U JP2522979Y2 (en) | 1990-06-15 | 1990-06-15 | Optometry lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990063426U JP2522979Y2 (en) | 1990-06-15 | 1990-06-15 | Optometry lens |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0422902U true JPH0422902U (en) | 1992-02-25 |
| JP2522979Y2 JP2522979Y2 (en) | 1997-01-22 |
Family
ID=31593466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990063426U Expired - Lifetime JP2522979Y2 (en) | 1990-06-15 | 1990-06-15 | Optometry lens |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2522979Y2 (en) |
Cited By (4)
| 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 |
| JPH07294859A (en) * | 1994-04-25 | 1995-11-10 | Tokai Kogaku Kk | Progressive multi-focus lens |
| WO1998026707A1 (en) * | 1996-12-17 | 1998-06-25 | Hoya Corporation | Plastic trial lens, its injection molded article and its molding apparatus |
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 JP1990063426U patent/JP2522979Y2/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 (4)
| 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 | ||
| JPH07294859A (en) * | 1994-04-25 | 1995-11-10 | Tokai Kogaku Kk | Progressive multi-focus lens |
| WO1998026707A1 (en) * | 1996-12-17 | 1998-06-25 | Hoya Corporation | Plastic trial lens, its injection molded article and its molding apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2522979Y2 (en) | 1997-01-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |