JPH03102113U - - Google Patents
Info
- Publication number
- JPH03102113U JPH03102113U JP843090U JP843090U JPH03102113U JP H03102113 U JPH03102113 U JP H03102113U JP 843090 U JP843090 U JP 843090U JP 843090 U JP843090 U JP 843090U JP H03102113 U JPH03102113 U JP H03102113U
- Authority
- JP
- Japan
- Prior art keywords
- light
- information recording
- optical information
- optical
- recording medium
- 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 claims description 15
- 238000000926 separation method Methods 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 238000001514 detection method Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Optical Head (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP843090U JPH03102113U (un) | 1990-01-31 | 1990-01-31 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP843090U JPH03102113U (un) | 1990-01-31 | 1990-01-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH03102113U true JPH03102113U (un) | 1991-10-24 |
Family
ID=31512061
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP843090U Pending JPH03102113U (un) | 1990-01-31 | 1990-01-31 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH03102113U (un) |
-
1990
- 1990-01-31 JP JP843090U patent/JPH03102113U/ja active Pending
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0379363A3 (en) | Optical head device for use in optical disk system | |
JPS6391819U (un) | ||
JPH03102113U (un) | ||
JPS5982337U (ja) | 光学式ピツクアツプ | |
JPH0630162B2 (ja) | スポツト位置エラ−検出系 | |
JPH0731373Y2 (ja) | 光学式ピツクアツプ装置 | |
JPH02140625U (un) | ||
JPH05120722A (ja) | 光ヘツドの信号受光方法 | |
JPH0461636A (ja) | 光学ヘッド | |
JPH0519853Y2 (un) | ||
JPH0281330A (ja) | 光記録再生装置 | |
JPH082814Y2 (ja) | 光学式ピツクアツプ装置 | |
JPS6431513U (un) | ||
JPS6313415U (un) | ||
JPS59157223U (ja) | 光ピツクアツプ装置 | |
JPH0296619U (un) | ||
JPH0384912U (un) | ||
JPH0197415U (un) | ||
JPH0421930A (ja) | 光ピックアップ装置 | |
JPH0197416U (un) | ||
JPH0226129U (un) | ||
JPS60135818U (ja) | フオ−カス誤差検出装置 | |
JPS60180325U (ja) | フオ−カスエラ−信号検出装置 | |
JPH01154515U (un) | ||
EP0393978A3 (en) | Optical information recording-reproducing apparatus |