JPS61139201U - - Google Patents
Info
- Publication number
- JPS61139201U JPS61139201U JP2176085U JP2176085U JPS61139201U JP S61139201 U JPS61139201 U JP S61139201U JP 2176085 U JP2176085 U JP 2176085U JP 2176085 U JP2176085 U JP 2176085U JP S61139201 U JPS61139201 U JP S61139201U
- Authority
- JP
- Japan
- Prior art keywords
- optical system
- light
- eye
- cornea
- subject
- 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
- 230000003287 optical effect Effects 0.000 claims description 9
- 210000004087 cornea Anatomy 0.000 claims description 3
- 210000001525 retina Anatomy 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
Description
第１図は本考案に係る眼屈折度測定装置の一実
施例を示す模式図、第２図はモニタ用テレビ画面
の正面図、第３図は従来の眼屈折度測定装置を示
す模式図、第４図は第３図の検知部を示す正面図
である。
１……第１の光源、２……第２の光源、４……
ターゲツト、４ａ……丸孔、７……眼、７ａ……
角膜、７ｂ……網膜、８……光軸、１３……第１
の検知器、１７……第３の光源、２３……第２の
検知器。
FIG. 1 is a schematic diagram showing an embodiment of the eye refractive power measuring device according to the present invention, FIG. 2 is a front view of a monitor TV screen, and FIG. 3 is a schematic diagram showing a conventional eye refractive power measuring device. FIG. 4 is a front view showing the detection section of FIG. 3. 1...first light source, 2...second light source, 4...
Target, 4a... Round hole, 7... Eye, 7a...
Cornea, 7b... Retina, 8... Optical axis, 13... 1st
Detector, 17... third light source, 23... second detector.
Claims (1)
光を被検者の眼の角膜上に結像する第１の光学系
と、前記光軸上に設けられたターゲツトと、この
ターゲツトによつて形成された前記光のパターン
の前記被検者の眼の網膜上に結像された像の反射
光を第１の検知器に集束する第２の光学系と、前
記２つの光源からの光を正しく前記角膜上に結像
させるための第３の光源及び第３の光学系と、該
第３の光学系により角膜上に結像した前記第３の
光源の像の反射光を第２の検知器上に結像させる
第４の光学系を設けてなる眼屈折度測定装置にお
いて、前記第３の光源は前記２つの光源のほぼ中
間に配設され、前記第３の光学系を前記第１の光
学系により共用させたことを特徴とする眼屈折度
測定装置。 a first optical system that images light from two light sources disposed close to each other on the optical axis onto the cornea of the eye of the subject; a target disposed on the optical axis; a second optical system that focuses reflected light of an image of the light pattern formed on the retina of the subject's eye on the first detector; a third light source and a third optical system for correctly forming an image of light on the cornea; In the eye refractometer, the third light source is disposed approximately midway between the two light sources, and the third optical system is connected to the third optical system. An eye refraction measuring device characterized in that it is shared by a first optical system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2176085U JPH02161Y2 (en) | 1985-02-18 | 1985-02-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2176085U JPH02161Y2 (en) | 1985-02-18 | 1985-02-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61139201U true JPS61139201U (en) | 1986-08-29 |
| JPH02161Y2 JPH02161Y2 (en) | 1990-01-05 |
Family
ID=30513448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2176085U Expired JPH02161Y2 (en) | 1985-02-18 | 1985-02-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02161Y2 (en) |
-
1985
- 1985-02-18 JP JP2176085U patent/JPH02161Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02161Y2 (en) | 1990-01-05 |