ATA127276A - Lichtstrahlabtaster mit automatischer fokussierung des lichtstrahles - Google Patents
Lichtstrahlabtaster mit automatischer fokussierung des lichtstrahlesInfo
- Publication number
- ATA127276A ATA127276A AT127276A AT127276A ATA127276A AT A127276 A ATA127276 A AT A127276A AT 127276 A AT127276 A AT 127276A AT 127276 A AT127276 A AT 127276A AT A127276 A ATA127276 A AT A127276A
- Authority
- AT
- Austria
- Prior art keywords
- light beam
- automatic focusing
- scanner
- beam scanner
- focusing
- Prior art date
Links
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
- G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B7/0908—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for focusing only
-
- 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
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP50022590A JPS51149004A (en) | 1975-02-24 | 1975-02-24 | Optical apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| ATA127276A true ATA127276A (de) | 1978-04-15 |
| AT346927B AT346927B (de) | 1978-12-11 |
Family
ID=12087055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT127276A AT346927B (de) | 1975-02-24 | 1976-02-23 | Lichtstrahlabtaster mit automatischer fokussierung des lichtstrahles |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US4058834A (de) |
| JP (1) | JPS51149004A (de) |
| AT (1) | AT346927B (de) |
| AU (1) | AU497045B2 (de) |
| CA (1) | CA1182914A (de) |
| DE (1) | DE2607275C3 (de) |
| FR (1) | FR2301879A1 (de) |
| GB (1) | GB1526333A (de) |
| NL (1) | NL7601897A (de) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5398802A (en) * | 1977-02-09 | 1978-08-29 | Mitsubishi Electric Corp | Optical reproducer |
| US4334302A (en) * | 1980-06-02 | 1982-06-08 | Peppers James M | Flexible recording disc stabilizing and guidance system |
| EP0139722A1 (de) * | 1983-04-04 | 1985-05-08 | Storage Technology Partners Ii | Im schwerpunkt gelagerte betätigungseinheit |
| GB2260019A (en) * | 1991-09-27 | 1993-03-31 | Nsk Ltd | Optical disk drive and read/write apparatus |
| KR940006129B1 (ko) * | 1991-12-24 | 1994-07-06 | 삼성전자 주식회사 | 양면디스크 재생장치 |
| JPH10269602A (ja) * | 1997-03-26 | 1998-10-09 | Samsung Electron Co Ltd | 光ファイバーを用いたマスターディスク露光装置 |
| SG87758A1 (en) * | 1997-07-04 | 2002-04-16 | Michael Anh Nguyen | Off-axis optical pickup mechanism for dual-sided optical storage discs |
| US20070053276A1 (en) * | 2005-09-08 | 2007-03-08 | Hanks D M | Optics for double-sided media |
| US7890968B2 (en) * | 2007-01-26 | 2011-02-15 | Hewlett-Packard Development Company, L.P. | Optical disc device having two optomechanical mechanisms |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3944727A (en) * | 1972-10-24 | 1976-03-16 | Mca Discovision, Inc. | Video disc player with movable mirror for directing light beam onto reflective disc |
| JPS5548282B2 (de) * | 1973-06-20 | 1980-12-05 | ||
| US3932701A (en) * | 1975-01-29 | 1976-01-13 | Zenith Radio Corporation | Self-compensating focus system for a reflective video disc |
| US3959581A (en) * | 1975-01-29 | 1976-05-25 | Zenith Radio Corporation | Self-compensating focus system for optical video playback device |
-
1975
- 1975-02-24 JP JP50022590A patent/JPS51149004A/ja active Granted
-
1976
- 1976-02-18 GB GB6424/76A patent/GB1526333A/en not_active Expired
- 1976-02-18 CA CA000245992A patent/CA1182914A/en not_active Expired
- 1976-02-18 US US05/658,999 patent/US4058834A/en not_active Expired - Lifetime
- 1976-02-19 AU AU11242/76A patent/AU497045B2/en not_active Expired
- 1976-02-23 AT AT127276A patent/AT346927B/de not_active IP Right Cessation
- 1976-02-23 DE DE2607275A patent/DE2607275C3/de not_active Expired
- 1976-02-24 NL NL7601897A patent/NL7601897A/xx not_active Application Discontinuation
- 1976-02-24 FR FR7605101A patent/FR2301879A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| DE2607275B2 (de) | 1978-01-05 |
| CA1182914A (en) | 1985-02-19 |
| US4058834A (en) | 1977-11-15 |
| GB1526333A (en) | 1978-09-27 |
| JPS51149004A (en) | 1976-12-21 |
| JPS552847B2 (de) | 1980-01-22 |
| DE2607275C3 (de) | 1978-09-28 |
| FR2301879B1 (de) | 1979-04-20 |
| NL7601897A (nl) | 1976-08-26 |
| AU1124276A (en) | 1977-09-01 |
| FR2301879A1 (fr) | 1976-09-17 |
| AT346927B (de) | 1978-12-11 |
| AU497045B2 (en) | 1978-11-23 |
| DE2607275A1 (de) | 1976-09-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ELA | Expired due to lapse of time |