JPS6030422U - Pupil shield to prevent presbyopic astigmatism - Google Patents
Pupil shield to prevent presbyopic astigmatismInfo
- Publication number
- JPS6030422U JPS6030422U JP12242083U JP12242083U JPS6030422U JP S6030422 U JPS6030422 U JP S6030422U JP 12242083 U JP12242083 U JP 12242083U JP 12242083 U JP12242083 U JP 12242083U JP S6030422 U JPS6030422 U JP S6030422U
- Authority
- JP
- Japan
- Prior art keywords
- shield
- astigmatism
- presbyopic
- prevent
- pupil
- 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
Landscapes
- Eyeglasses (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は乱視を防除する瞳孔遮蔽器財老眼鏡斜視図、第
２図は第１図のＡ−Ａ間断面図、第３図は瞳孔遮蔽器部
品の斜視図。
１：老眼鏡、２：フレーム内面上端部、３：瞳孔遮蔽器
小片板、４：老眼鏡レンズ、５：瞳孔遮蔽器周縁部。FIG. 1 is a perspective view of reading glasses with a pupil shield for preventing astigmatism, FIG. 2 is a sectional view taken along line A--A in FIG. 1, and FIG. 3 is a perspective view of the pupil shield components. 1: reading glasses, 2: upper end of frame inner surface, 3: pupil shield small piece plate, 4: reading glasses lens, 5: periphery of pupil shield.
Claims (1)
７圏前後の黒色あるいはフレーム同系色の小片板３を挾
持して両眼の瞳孔を遮蔽し瞳孔への入射光線を遮断して
瞳孔遮蔽器周縁を通過する屈折光線のみを取入れて視黙
の視角に應して左右に移動調節を可能にした視力正常化
を補ふための老眼に併発した乱視を防除する瞳孔遮蔽器
の構造。A small piece plate 3 of black or similar color of the frame, about 1 cm long and 7 circles wide, is clamped to the upper end 2 of the inner frame of the first class reading glasses for both eyes to shield the pupils of both eyes and block the light rays entering the pupils. A structure of a pupil shield that prevents astigmatism accompanying presbyopia to compensate for normalization of visual acuity by allowing only the refracted rays passing through the periphery of the shield to adjust the visual angle to the left and right.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12242083U JPS6030422U (en) | 1983-08-05 | 1983-08-05 | Pupil shield to prevent presbyopic astigmatism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12242083U JPS6030422U (en) | 1983-08-05 | 1983-08-05 | Pupil shield to prevent presbyopic astigmatism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6030422U true JPS6030422U (en) | 1985-03-01 |
Family
ID=30279832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12242083U Pending JPS6030422U (en) | 1983-08-05 | 1983-08-05 | Pupil shield to prevent presbyopic astigmatism |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6030422U (en) |
-
1983
- 1983-08-05 JP JP12242083U patent/JPS6030422U/en active Pending
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