JPS58166304U - Lens switching device for subjective eye refractive power measuring device - Google Patents
Lens switching device for subjective eye refractive power measuring deviceInfo
- Publication number
- JPS58166304U JPS58166304U JP6225382U JP6225382U JPS58166304U JP S58166304 U JPS58166304 U JP S58166304U JP 6225382 U JP6225382 U JP 6225382U JP 6225382 U JP6225382 U JP 6225382U JP S58166304 U JPS58166304 U JP S58166304U
- Authority
- JP
- Japan
- Prior art keywords
- lens holding
- refractive power
- eye refractive
- lens
- switching device
- 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 description 2
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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は、従来の自覚式眼屈折力測定装置に用いるルン
ズ切換装置の平面図、第２図は、第１図のＡ−Ａ矢視断
面図、第３図は、本考案の一実施例の平面図、第４図は
、第３図のＢ−Ｂ矢視断面図である。
〔主要部分の符号の説明〕、１′・・・・・・レンズ保
持部、２′・・・・・・回転駆動部材、２ａ・・・・・
・係接ピン、ｌ・・・・・・各レンズ１ｂの間隔、１ｃ
・・・・・・レンズ保持部。Fig. 1 is a plan view of a lens switching device used in a conventional subjective eye refractive power measurement device, Fig. 2 is a sectional view taken along the line A-A in Fig. 1, and Fig. 3 is an embodiment of the present invention. The plan view of the example, FIG. 4, is a sectional view taken along the line BB in FIG. 3. [Description of symbols of main parts], 1'... Lens holding part, 2'... Rotation drive member, 2a...
- Engagement pin, l... Distance between each lens 1b, 1c
・・・・・・Lens holding part.
Claims (1)
の間に等角度に半径方向の切欠溝を形成゛ したレン
ズ保持板を複数重ねて配設すると共に、前記レンズ保持
板毎に設けた回転駆動部材の係接□ ピンを前記切欠溝
に係接せしめることによって前記各レンズ保持板を回転
する自覚式眼屈折力測定装置のレンズ切換装置において
、 前記レンズ保持板のレンズ保持部を必要最小の大きさに
成すと共に該保持部具外を薄く成し、前記回転駆動部材
に前記レンズ保持部と重ならないように切り欠きを形成
したことを特徴とするレンズの切換装置。[Claims for Utility Model Registration] A plurality of lens holding plates having lens holding parts provided at equal angles and radial notch grooves formed at equal angles between the lens holding parts are stacked, and Engagement of a rotational drive member provided for each lens holding plate □ In a lens switching device of a subjective eye refractive power measurement device in which each of the lens holding plates is rotated by engaging a pin with the notch groove, the lens holding plate The lens holding part is made to the minimum necessary size and the outside of the holding part is made thin, and a notch is formed in the rotational drive member so as not to overlap with the lens holding part. Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6225382U JPS58166304U (en) | 1982-04-30 | 1982-04-30 | Lens switching device for subjective eye refractive power measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6225382U JPS58166304U (en) | 1982-04-30 | 1982-04-30 | Lens switching device for subjective eye refractive power measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58166304U true JPS58166304U (en) | 1983-11-05 |
Family
ID=30072417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6225382U Pending JPS58166304U (en) | 1982-04-30 | 1982-04-30 | Lens switching device for subjective eye refractive power measuring device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58166304U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5285676A (en) * | 1976-01-09 | 1977-07-16 | Hitachi Ltd | Correction mechanism for intermittent movement |
| JPS5632924A (en) * | 1979-08-23 | 1981-04-02 | Miyahara Burner Osaka | Plant growing apparatus using solar energy |
-
1982
- 1982-04-30 JP JP6225382U patent/JPS58166304U/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5285676A (en) * | 1976-01-09 | 1977-07-16 | Hitachi Ltd | Correction mechanism for intermittent movement |
| JPS5632924A (en) * | 1979-08-23 | 1981-04-02 | Miyahara Burner Osaka | Plant growing apparatus using solar energy |
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