JPH0583968B2 - - Google Patents
Info
- Publication number
- JPH0583968B2 JPH0583968B2 JP18929084A JP18929084A JPH0583968B2 JP H0583968 B2 JPH0583968 B2 JP H0583968B2 JP 18929084 A JP18929084 A JP 18929084A JP 18929084 A JP18929084 A JP 18929084A JP H0583968 B2 JPH0583968 B2 JP H0583968B2
- Authority
- JP
- Japan
- Prior art keywords
- signal
- lens
- recording medium
- output signal
- output
- 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
- 239000011159 matrix material Substances 0.000 claims description 8
- 238000010586 diagram Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 7
- 230000003287 optical effect Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
- G11B7/08505—Methods for track change, selection or preliminary positioning by moving the head
- G11B7/08511—Methods for track change, selection or preliminary positioning by moving the head with focus pull-in only
Landscapes
- Automatic Focus Adjustment (AREA)
- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
- Optical Recording Or Reproduction (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18929084A JPS6168739A (ja) | 1984-09-10 | 1984-09-10 | 焦点合せ装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18929084A JPS6168739A (ja) | 1984-09-10 | 1984-09-10 | 焦点合せ装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6168739A JPS6168739A (ja) | 1986-04-09 |
| JPH0583968B2 true JPH0583968B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1993-11-30 |
Family
ID=16238850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18929084A Granted JPS6168739A (ja) | 1984-09-10 | 1984-09-10 | 焦点合せ装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6168739A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6124628B2 (ja) * | 2013-03-14 | 2017-05-10 | オリンパス株式会社 | 焦点調節装置及び焦点調節方法 |
-
1984
- 1984-09-10 JP JP18929084A patent/JPS6168739A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6168739A (ja) | 1986-04-09 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |