JPS6446228A - Recording method for information recording disk - Google Patents
Recording method for information recording diskInfo
- Publication number
- JPS6446228A JPS6446228A JP62201420A JP20142087A JPS6446228A JP S6446228 A JPS6446228 A JP S6446228A JP 62201420 A JP62201420 A JP 62201420A JP 20142087 A JP20142087 A JP 20142087A JP S6446228 A JPS6446228 A JP S6446228A
- Authority
- JP
- Japan
- Prior art keywords
- optical beams
- interval
- slit
- cross
- half mirror
- 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.)
- Pending
Links
- 230000003287 optical effect Effects 0.000 abstract 8
Landscapes
- Optical Head (AREA)
- Optical Recording Or Reproduction (AREA)
Abstract
PURPOSE:To arbitrarily change the cross-section shape of optical beams and to increase accuracy by detecting the interval of the diffraction light of the optical beams generated by a slit, and setting the interval of the slits to an arbitrary value from the detected value. CONSTITUTION:The optical beams passing through a slit S have an approximately rectangular cross-section shape, are irradiated through a cylindrical lens 2e to a half mirror 4, the optical beams passing through the half mirror 4 reach a disk surface through a reflecting mirror and an image-formation lens, are image-formed, and form a bit. On the other hand, the optical beams partly reflected at the half mirror 4 reach a video camera 5, and the video camera 5 detects the interval of the diffraction lights of the optical beams generated by the slit S. The interval of the slits is set to the arbitrary value by the detected value. Thus, the cross-section shape of the optical beams can be changed during a record, the pit shape can be changed, and the change of the size of the optical beam cross-section can be obtained with high accuracy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62201420A JPS6446228A (en) | 1987-08-12 | 1987-08-12 | Recording method for information recording disk |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62201420A JPS6446228A (en) | 1987-08-12 | 1987-08-12 | Recording method for information recording disk |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6446228A true JPS6446228A (en) | 1989-02-20 |
Family
ID=16440783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62201420A Pending JPS6446228A (en) | 1987-08-12 | 1987-08-12 | Recording method for information recording disk |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6446228A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04137426U (en) * | 1991-06-07 | 1992-12-22 | 矢崎総業株式会社 | Locking structure between box and lid |
-
1987
- 1987-08-12 JP JP62201420A patent/JPS6446228A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04137426U (en) * | 1991-06-07 | 1992-12-22 | 矢崎総業株式会社 | Locking structure between box and lid |
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