JPH0435173B2 - - Google Patents
Info
- Publication number
- JPH0435173B2 JPH0435173B2 JP2153230A JP15323090A JPH0435173B2 JP H0435173 B2 JPH0435173 B2 JP H0435173B2 JP 2153230 A JP2153230 A JP 2153230A JP 15323090 A JP15323090 A JP 15323090A JP H0435173 B2 JPH0435173 B2 JP H0435173B2
- Authority
- JP
- Japan
- Prior art keywords
- light source
- housing
- optical axis
- light
- ring
- 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.)
- Expired - Lifetime
Links
- 230000003287 optical effect Effects 0.000 claims description 66
- 210000004087 cornea Anatomy 0.000 claims description 38
- 230000002093 peripheral effect Effects 0.000 claims description 19
- 230000001154 acute effect Effects 0.000 claims description 16
- 239000011248 coating agent Substances 0.000 claims description 13
- 238000000576 coating method Methods 0.000 claims description 13
- 238000005259 measurement Methods 0.000 claims description 9
- 230000000903 blocking effect Effects 0.000 claims description 3
- 238000005286 illumination Methods 0.000 description 16
- 238000012876 topography Methods 0.000 description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 6
- 229910052782 aluminium Inorganic materials 0.000 description 6
- 238000005192 partition Methods 0.000 description 6
- 238000003384 imaging method Methods 0.000 description 5
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000001678 irradiating effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
Landscapes
- Eye Examination Apparatus (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2153230A JPH0444736A (ja) | 1990-06-11 | 1990-06-11 | 角膜形状測定装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2153230A JPH0444736A (ja) | 1990-06-11 | 1990-06-11 | 角膜形状測定装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0444736A JPH0444736A (ja) | 1992-02-14 |
| JPH0435173B2 true JPH0435173B2 (enrdf_load_stackoverflow) | 1992-06-10 |
Family
ID=15557901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2153230A Granted JPH0444736A (ja) | 1990-06-11 | 1990-06-11 | 角膜形状測定装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0444736A (enrdf_load_stackoverflow) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3730436B2 (ja) | 1999-03-30 | 2006-01-05 | 株式会社ニデック | 角膜形状検査装置 |
| JP2008229095A (ja) * | 2007-03-22 | 2008-10-02 | Topcon Corp | 眼科装置 |
| JP6686296B2 (ja) * | 2015-05-18 | 2020-04-22 | 株式会社ニデック | 眼科測定装置 |
| CN108720802A (zh) * | 2018-06-26 | 2018-11-02 | 博奥生物集团有限公司 | 一种目诊光源系统 |
-
1990
- 1990-06-11 JP JP2153230A patent/JPH0444736A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0444736A (ja) | 1992-02-14 |
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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 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080610 Year of fee payment: 16 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090610 Year of fee payment: 17 |
|
| LAPS | Cancellation because of no payment of annual fees |