JPS6224857B2 - - Google Patents
Info
- Publication number
- JPS6224857B2 JPS6224857B2 JP53013193A JP1319378A JPS6224857B2 JP S6224857 B2 JPS6224857 B2 JP S6224857B2 JP 53013193 A JP53013193 A JP 53013193A JP 1319378 A JP1319378 A JP 1319378A JP S6224857 B2 JPS6224857 B2 JP S6224857B2
- Authority
- JP
- Japan
- Prior art keywords
- focusing lens
- recording
- focusing
- recording disk
- movable body
- 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
- 238000004140 cleaning Methods 0.000 claims description 12
- 230000003287 optical effect Effects 0.000 claims description 12
- 239000000126 substance Substances 0.000 claims description 12
- 239000000428 dust Substances 0.000 description 11
- 239000000463 material Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 230000002542 deteriorative effect Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000007704 transition 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
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/121—Protecting the head, e.g. against dust or impact with the record carrier
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Automatic Focus Adjustment (AREA)
- Optical Recording Or Reproduction (AREA)
- Optical Head (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1319378A JPS54106208A (en) | 1978-02-07 | 1978-02-07 | Cleaner for automatic focusing device of optical information recording and reproducing apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1319378A JPS54106208A (en) | 1978-02-07 | 1978-02-07 | Cleaner for automatic focusing device of optical information recording and reproducing apparatus |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54106208A JPS54106208A (en) | 1979-08-21 |
JPS6224857B2 true JPS6224857B2 (de) | 1987-05-30 |
Family
ID=11826318
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1319378A Granted JPS54106208A (en) | 1978-02-07 | 1978-02-07 | Cleaner for automatic focusing device of optical information recording and reproducing apparatus |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54106208A (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10847151B2 (en) | 2017-11-08 | 2020-11-24 | Kabushiki Kaisha Toshiba | Dialogue system and dialogue method |
US11455489B2 (en) * | 2018-06-13 | 2022-09-27 | Canon Kabushiki Kaisha | Device that updates recognition model and method of updating recognition model |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58165740U (ja) * | 1981-12-26 | 1983-11-04 | 三菱電機株式会社 | 光ビツクアツプ装置 |
JPWO2006106819A1 (ja) * | 2005-03-31 | 2008-11-20 | パイオニア株式会社 | 記録媒体再生装置 |
-
1978
- 1978-02-07 JP JP1319378A patent/JPS54106208A/ja active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10847151B2 (en) | 2017-11-08 | 2020-11-24 | Kabushiki Kaisha Toshiba | Dialogue system and dialogue method |
US11455489B2 (en) * | 2018-06-13 | 2022-09-27 | Canon Kabushiki Kaisha | Device that updates recognition model and method of updating recognition model |
Also Published As
Publication number | Publication date |
---|---|
JPS54106208A (en) | 1979-08-21 |
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