JPS6411527A - Eyeground measuring apparatus - Google Patents
Eyeground measuring apparatusInfo
- Publication number
- JPS6411527A JPS6411527A JP62167519A JP16751987A JPS6411527A JP S6411527 A JPS6411527 A JP S6411527A JP 62167519 A JP62167519 A JP 62167519A JP 16751987 A JP16751987 A JP 16751987A JP S6411527 A JPS6411527 A JP S6411527A
- Authority
- JP
- Japan
- Prior art keywords
- eyeground
- optical system
- detecting element
- reflected
- iris
- 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
Landscapes
- Eye Examination Apparatus (AREA)
Abstract
PURPOSE:To quantitatively determine the depressed state of the papillary part of the eyeground necessary for the diagnosis of glaucoma, by projecting the laser beam from a beam source on the eyeground through a beam splitting member and a scanning optical system and receiving the reflected beam by a beam position detecting element through the scanning optical system and the beam splitting member. CONSTITUTION:The laser beam emitted from a beam source 1 is projected on the eyeground Er of an eye E to be examined through an iris plate 2, a convex lens 3, the aperture 4a of an eccentric iris 4, a relay lens 6, a scanning mirror 7, a relay lens 8, a scanning mirror 9 and a relay lens 10 and the reflected laser beam goes back through the optical system to be reflected by a beam splitting member 5 and passes through the aperture 11a of an eccentric iris 11 and an image forming lens 12 to be received by a beam position detecting element 13. By this method, the beam position detecting element 13 grasps reflectivity from depth data and a level and outputs the same to a display monitor 15 to obtain the image of the eyeground and the unevenness data at each position thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62167519A JPH0651022B2 (en) | 1987-07-03 | 1987-07-03 | Ophthalmic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62167519A JPH0651022B2 (en) | 1987-07-03 | 1987-07-03 | Ophthalmic equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6411527A true JPS6411527A (en) | 1989-01-17 |
| JPH0651022B2 JPH0651022B2 (en) | 1994-07-06 |
Family
ID=15851195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62167519A Expired - Fee Related JPH0651022B2 (en) | 1987-07-03 | 1987-07-03 | Ophthalmic equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0651022B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0284931A (en) * | 1988-09-22 | 1990-03-26 | Topcon Corp | Laser scan eyeground camera |
| US5217418A (en) * | 1989-01-06 | 1993-06-08 | Torotrak (Development) Limited | Drivelines for wheeled vehicles |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
1987
- 1987-07-03 JP JP62167519A patent/JPH0651022B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0284931A (en) * | 1988-09-22 | 1990-03-26 | Topcon Corp | Laser scan eyeground camera |
| US5217418A (en) * | 1989-01-06 | 1993-06-08 | Torotrak (Development) Limited | Drivelines for wheeled vehicles |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0651022B2 (en) | 1994-07-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |