JPS642623A - Ophthalmic measuring apparatus - Google Patents
Ophthalmic measuring apparatusInfo
- Publication number
- JPS642623A JPS642623A JP62156660A JP15666087A JPS642623A JP S642623 A JPS642623 A JP S642623A JP 62156660 A JP62156660 A JP 62156660A JP 15666087 A JP15666087 A JP 15666087A JP S642623 A JPS642623 A JP S642623A
- Authority
- JP
- Japan
- Prior art keywords
- slit
- laser
- measuring point
- vertical
- lens
- 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
Abstract
PURPOSE: To measure an intraocular suspended substance with good accuracy by a simple method, by condensing laser beam to the predetermined point in the anterior sac and receiving the laser scattering beam from the interior of an eye by the scanning of said laser beam in horizontal and vertical directions.
CONSTITUTION: A slit beam source 12 is allowed to light and the slit image of a slit 14 is formed to the part containing the measuring point P of the anterior sac 11a through beam splitters 8, 10 and a lens 9 and, continuously, the beam from a laser beam source 1 is condensed to the measuring point P through the optical system thereof. A part of the beam scattered from the measuring point P is turned toward an examiner 33 by a beam splitter 21 to perform observation and, at the same time, incident to a photomultiplier tube 27 through a lens 22, a prism 23 and a mask 26. Vertical and horizontal scanning mirrors 4, 4' are scanned through serrated wave generating circuits 42, 42', a vertical scanning mirror driving circuit 43 and a horizontal scanning mirror driving circuit 43' under the control of an operation apparatus 41. As mentioned above, by receiving the laser scattering beam incident through a slit 26a by the photomultiplier tube, the intensity of the scattering beam from the suspended substance in the anterior sac is detected.
COPYRIGHT: (C)1989,JPO&Japio
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62156660A JP2557393B2 (en) | 1987-06-25 | 1987-06-25 | Ophthalmic measuring device |
EP88305550A EP0296769B1 (en) | 1987-06-25 | 1988-06-17 | Ophthalmic disease detection method and apparatus |
DE3851183T DE3851183D1 (en) | 1987-06-25 | 1988-06-17 | Method and device for the diagnosis of eye disorders. |
US07/210,811 US5000562A (en) | 1987-06-25 | 1988-06-24 | Ophthalmic disease detection method and apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62156660A JP2557393B2 (en) | 1987-06-25 | 1987-06-25 | Ophthalmic measuring device |
Publications (3)
Publication Number | Publication Date |
---|---|
JPS642623A true JPS642623A (en) | 1989-01-06 |
JPH012623A JPH012623A (en) | 1989-01-06 |
JP2557393B2 JP2557393B2 (en) | 1996-11-27 |
Family
ID=15632512
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62156660A Expired - Lifetime JP2557393B2 (en) | 1987-06-25 | 1987-06-25 | Ophthalmic measuring device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2557393B2 (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6171032A (en) * | 1984-06-14 | 1986-04-11 | ハイデルベルク・インストルメンツ・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング | Apparatus for displaying plane or thin layer range of human eye |
JPS62117524A (en) * | 1985-09-17 | 1987-05-29 | アイ・リサ−チ・インステイテユ−ト・オブ・ザ・レテイナ・フアウンデイシヨン | Double scanning optical apparatus |
JPS62120834A (en) * | 1985-11-21 | 1987-06-02 | 興和株式会社 | Ophthalmic measuring apparatus |
-
1987
- 1987-06-25 JP JP62156660A patent/JP2557393B2/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6171032A (en) * | 1984-06-14 | 1986-04-11 | ハイデルベルク・インストルメンツ・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング | Apparatus for displaying plane or thin layer range of human eye |
JPS62117524A (en) * | 1985-09-17 | 1987-05-29 | アイ・リサ−チ・インステイテユ−ト・オブ・ザ・レテイナ・フアウンデイシヨン | Double scanning optical apparatus |
JPS62120834A (en) * | 1985-11-21 | 1987-06-02 | 興和株式会社 | Ophthalmic measuring apparatus |
Also Published As
Publication number | Publication date |
---|---|
JP2557393B2 (en) | 1996-11-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4346991A (en) | Method and apparatus for measuring retinal blood flow | |
US5152295A (en) | Fundus examination device | |
JPS6458237A (en) | Fundoscopy | |
JPH0578330B2 (en) | ||
JP2854657B2 (en) | Ophthalmic measurement device | |
JP2931325B2 (en) | Ophthalmic measurement device | |
JPS62120834A (en) | Ophthalmic measuring apparatus | |
JPS55111929A (en) | Automatic focusing device | |
EP0299709A3 (en) | Ophthalmic disease detection apparatus | |
US4795250A (en) | Ophthalmic apparatus | |
JPS642623A (en) | Ophthalmic measuring apparatus | |
JPS6420826A (en) | Ophthalmic measuring apparatus | |
GB2212040A (en) | Light aiming device for medical or dental X-ray equipment | |
DE58908742D1 (en) | DEVICE FOR PRODUCING AN IMAGE OF AN OBJECT. | |
US5912722A (en) | Scale correct opthamalic microscope using slit beam illumination | |
JP3533254B2 (en) | Ophthalmic measurement device | |
JPS642624A (en) | Ophthalmic measuring method and apparatus | |
JP2868804B2 (en) | Light irradiation device | |
JPS55558A (en) | Non-mydriasis type fundus camera | |
US5726735A (en) | Measurement device with polarizing filter for noise elimination | |
KR20000073778A (en) | Optical architecture for measuring the refraction of eye | |
GB2127580A (en) | Ophtalmoscopic apparatus | |
JPH01265938A (en) | Contactless ophthalmotonometer | |
JP3108135B2 (en) | Ophthalmic imaging equipment | |
JPH0397436A (en) | Corneal shape measuring device |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
EXPY | Cancellation because of completion of term |