JPH0481808B2 - - Google Patents
Info
- Publication number
- JPH0481808B2 JPH0481808B2 JP61186044A JP18604486A JPH0481808B2 JP H0481808 B2 JPH0481808 B2 JP H0481808B2 JP 61186044 A JP61186044 A JP 61186044A JP 18604486 A JP18604486 A JP 18604486A JP H0481808 B2 JPH0481808 B2 JP H0481808B2
- Authority
- JP
- Japan
- Prior art keywords
- light
- interference
- pattern
- parallel light
- adjustment device
- 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 12
- 238000000605 extraction Methods 0.000 claims description 4
- 201000009310 astigmatism Diseases 0.000 description 3
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Landscapes
- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18604486A JPS6342038A (ja) | 1986-08-06 | 1986-08-06 | 光学式記録情報ピックアップにおける照射光パタ−ン調整装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18604486A JPS6342038A (ja) | 1986-08-06 | 1986-08-06 | 光学式記録情報ピックアップにおける照射光パタ−ン調整装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6342038A JPS6342038A (ja) | 1988-02-23 |
JPH0481808B2 true JPH0481808B2 (enrdf_load_stackoverflow) | 1992-12-25 |
Family
ID=16181416
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18604486A Granted JPS6342038A (ja) | 1986-08-06 | 1986-08-06 | 光学式記録情報ピックアップにおける照射光パタ−ン調整装置 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6342038A (enrdf_load_stackoverflow) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2735021B2 (ja) * | 1995-03-07 | 1998-04-02 | 日本電気株式会社 | 光ヘッドの非点隔差補正方法および装置 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60149941A (ja) * | 1984-01-05 | 1985-08-07 | Mitsubishi Electric Corp | 光ヘツドの出射光波面収差検知方法および装置 |
-
1986
- 1986-08-06 JP JP18604486A patent/JPS6342038A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6342038A (ja) | 1988-02-23 |
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