JPH0419454Y2 - - Google Patents
Info
- Publication number
- JPH0419454Y2 JPH0419454Y2 JP6277186U JP6277186U JPH0419454Y2 JP H0419454 Y2 JPH0419454 Y2 JP H0419454Y2 JP 6277186 U JP6277186 U JP 6277186U JP 6277186 U JP6277186 U JP 6277186U JP H0419454 Y2 JPH0419454 Y2 JP H0419454Y2
- Authority
- JP
- Japan
- Prior art keywords
- light
- optical disk
- amount
- condenser lens
- displacement
- 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
Links
- 230000003287 optical effect Effects 0.000 claims description 31
- 238000006073 displacement reaction Methods 0.000 claims description 26
- 238000007689 inspection Methods 0.000 claims description 15
- 238000005259 measurement Methods 0.000 claims description 9
- 230000032683 aging Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000007423 decrease Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
Landscapes
- Optical Recording Or Reproduction (AREA)
- Manufacturing Optical Record Carriers (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Optical Transform (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6277186U JPH0419454Y2 (OSRAM) | 1986-04-25 | 1986-04-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6277186U JPH0419454Y2 (OSRAM) | 1986-04-25 | 1986-04-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62174209U JPS62174209U (OSRAM) | 1987-11-05 |
| JPH0419454Y2 true JPH0419454Y2 (OSRAM) | 1992-05-01 |
Family
ID=30897366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6277186U Expired JPH0419454Y2 (OSRAM) | 1986-04-25 | 1986-04-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0419454Y2 (OSRAM) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2617237B2 (ja) * | 1990-08-28 | 1997-06-04 | シャープ株式会社 | 光スポット位置検出装置 |
| DE60009171T2 (de) * | 2000-06-15 | 2004-10-14 | Scanlab Ag | Ein positionsdetektor für eine abtastvorrichtung |
-
1986
- 1986-04-25 JP JP6277186U patent/JPH0419454Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62174209U (OSRAM) | 1987-11-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4639140A (en) | Optical surface proximity measuring device and its application to the plotting of the profile of a surface | |
| JPS63153456A (ja) | 光デイスクテストシステム | |
| JPH0147762B2 (OSRAM) | ||
| WO1989007037A1 (en) | Method and system for determining surface profile information | |
| JPH0419454Y2 (OSRAM) | ||
| JPS6177701A (ja) | 光学式測定機器におけるエツジ検出装置 | |
| JPH08254651A (ja) | 楕円光を利用した自動焦点調節装置 | |
| JPS6155047B2 (OSRAM) | ||
| JPS61112905A (ja) | 光応用計測装置 | |
| JPH0338646Y2 (OSRAM) | ||
| JPH04113523A (ja) | 光スポット位置検出装置および光ピックアップ | |
| JPH11101872A (ja) | レーザ測距装置 | |
| JPS6275308A (ja) | 変位変換器 | |
| JPH07101517B2 (ja) | 光検出素子 | |
| JPH056643B2 (OSRAM) | ||
| JP2552660B2 (ja) | フオ−カス誤差検出装置 | |
| JPH0610327Y2 (ja) | レ−ザ光のフアイバ入力装置 | |
| JPH04246Y2 (OSRAM) | ||
| JPH0511451Y2 (OSRAM) | ||
| JP2529049B2 (ja) | 光学式変位計 | |
| JPS6275303A (ja) | 変位変換器 | |
| JPH02278122A (ja) | 光学式ディスク装置 | |
| JPS63293405A (ja) | 光デイスク円板特性測定法 | |
| JPS62256235A (ja) | 光情報処理装置 | |
| JPH0528762B2 (OSRAM) |