JPH0324106U - - Google Patents
Info
- Publication number
- JPH0324106U JPH0324106U JP8513989U JP8513989U JPH0324106U JP H0324106 U JPH0324106 U JP H0324106U JP 8513989 U JP8513989 U JP 8513989U JP 8513989 U JP8513989 U JP 8513989U JP H0324106 U JPH0324106 U JP H0324106U
- Authority
- JP
- Japan
- Prior art keywords
- refractive power
- eye refractive
- moving
- subjective eye
- moving means
- 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
- 238000005259 measurement Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 1
Description
第１図は本考案の一実施例のレンズ室の移動装
置の部分断面図、第２図は第１図のＡ−Ａ矢視部
分断面図、第３図は、従来の自覚式眼屈折力測定
装置の主要部正面図、第４図はロータリープリズ
ムによる光線の移動を説明するための光路図、第
５図は各種モーターを制御する制御回路を示すブ
ロツク図である。
主要部分の符号の説明、１，１′……レンズ室
、２，２′……視野窓、８，８′……レンズ室移
動用パルスモーター、９，９′……レンズ室移動
用ギヤ、１０，１０′……レンズ室移動用リード
ねじ、１２……レンズ室駆動軸、１５ａ，１６ａ
……ロータリープリズム、１９……プリズム用モ
ーター。
FIG. 1 is a partial sectional view of a lens chamber moving device according to an embodiment of the present invention, FIG. 2 is a partial sectional view taken along the line A-A in FIG. 1, and FIG. 3 is a conventional subjective eye refractive power system. FIG. 4 is a front view of the main parts of the measuring device, FIG. 4 is an optical path diagram for explaining the movement of a light beam by a rotary prism, and FIG. 5 is a block diagram showing a control circuit for controlling various motors. Explanation of the symbols of the main parts, 1, 1'...lens chamber, 2, 2'...field window, 8, 8'...pulse motor for moving the lens chamber, 9, 9'...gear for moving the lens chamber, 10, 10'... Lead screw for lens chamber movement, 12... Lens chamber drive shaft, 15a, 16a
...Rotary prism, 19...Motor for prism.
Claims (1)
わされる各種レンズとプリズムデイオプター測定
用のプリズムレンズとを有する自覚式眼屈折力測
定装置において、 前記視野窓を左右に移動させるために、前記左
右の筐体を左右に独立して移動させる移動手段と
、 前記プリズムレンズのデイオプターに応じて視
野窓の中心が被検者の眼の中心にほぼ一致するよ
うに、前記移動手段を制御する制御手段と、 を有することを特徴とする自覚式眼屈折力測定装
置。[Scope of Claim for Utility Model Registration] A subjective eye refractive power measurement device having various lenses superimposed within viewing windows provided in left and right housings, and a prism lens for measuring prism diopter, wherein the viewing window is a moving means for independently moving the left and right casings left and right in order to move them left and right; , a control means for controlling the moving means, and a subjective eye refractive power measuring device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8513989U JPH0324106U (en) | 1989-07-20 | 1989-07-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8513989U JPH0324106U (en) | 1989-07-20 | 1989-07-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0324106U true JPH0324106U (en) | 1991-03-13 |
Family
ID=31634095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8513989U Pending JPH0324106U (en) | 1989-07-20 | 1989-07-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0324106U (en) |
-
1989
- 1989-07-20 JP JP8513989U patent/JPH0324106U/ja active Pending
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