NL8204248A - Optische uitleeskop. - Google Patents
Optische uitleeskop. Download PDFInfo
- Publication number
- NL8204248A NL8204248A NL8204248A NL8204248A NL8204248A NL 8204248 A NL8204248 A NL 8204248A NL 8204248 A NL8204248 A NL 8204248A NL 8204248 A NL8204248 A NL 8204248A NL 8204248 A NL8204248 A NL 8204248A
- Authority
- NL
- Netherlands
- Prior art keywords
- support member
- hologram
- light beam
- optical
- laser light
- Prior art date
Links
- 230000003287 optical effect Effects 0.000 title claims description 64
- 239000004065 semiconductor Substances 0.000 claims description 23
- 238000006073 displacement reaction Methods 0.000 claims description 8
- 238000004804 winding Methods 0.000 description 11
- 239000010409 thin film Substances 0.000 description 4
- 230000004323 axial length Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 108010010803 Gelatin Proteins 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 229920000159 gelatin Polymers 0.000 description 1
- 239000008273 gelatin Substances 0.000 description 1
- 235000019322 gelatine Nutrition 0.000 description 1
- 235000011852 gelatine desserts Nutrition 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000005303 weighing Methods 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
- G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
- G11B7/1356—Double or multiple prisms, i.e. having two or more prisms in cooperation
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/10—Beam splitting or combining systems
- G02B27/16—Beam splitting or combining systems used as aids for focusing
-
- 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
-
- 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
- G11B7/0925—Electromechanical actuators for lens positioning
- G11B7/093—Electromechanical actuators for lens positioning for focusing and tracking
-
- 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
- G11B7/0925—Electromechanical actuators for lens positioning
- G11B7/0937—Piezoelectric actuators
-
- 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
- G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
- G11B7/1353—Diffractive elements, e.g. holograms or gratings
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- General Physics & Mathematics (AREA)
- Optical Head (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56176749A JPS5880139A (ja) | 1981-11-04 | 1981-11-04 | 光学ヘツド |
| JP17674981 | 1981-11-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL8204248A true NL8204248A (nl) | 1983-06-01 |
Family
ID=16019131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL8204248A NL8204248A (nl) | 1981-11-04 | 1982-11-02 | Optische uitleeskop. |
Country Status (9)
| Country | Link |
|---|---|
| JP (1) | JPS5880139A (fr) |
| KR (1) | KR880002635B1 (fr) |
| AT (1) | AT376510B (fr) |
| AU (1) | AU556305B2 (fr) |
| CA (1) | CA1177165A (fr) |
| DE (1) | DE3240734C2 (fr) |
| FR (1) | FR2519458B1 (fr) |
| GB (1) | GB2109583B (fr) |
| NL (1) | NL8204248A (fr) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL8304212A (nl) * | 1983-12-07 | 1984-10-01 | Philips Nv | Enkelvoudige collimatorlens met een asferisch oppervlak. |
| CA1258906A (fr) * | 1985-04-22 | 1989-08-29 | Hiroshi Oinoue | Laser a semiconducteur pour tete optique |
| JPS61269235A (ja) * | 1985-05-24 | 1986-11-28 | Omron Tateisi Electronics Co | 光情報処理装置 |
| JPS61269233A (ja) * | 1985-05-24 | 1986-11-28 | Omron Tateisi Electronics Co | 光情報処理装置 |
| JPH0687099B2 (ja) * | 1986-10-08 | 1994-11-02 | 富士通株式会社 | レ−ザ光走査装置 |
| CA2079620A1 (fr) * | 1991-10-25 | 1993-04-26 | Roeland M. T. Hekker | Elements holographiques pour systeme d'enregistrement optique |
| US5272690A (en) * | 1992-03-05 | 1993-12-21 | International Business Machines Corporation | Hologram element system |
| KR970703580A (ko) * | 1995-03-29 | 1997-07-03 | 제이.지.에이. 롤페스 | 방사원, 검출기 및 그레이팅을 포함하는 광학유닛과, 광학유닛을 포함하는 스캐닝 장치(Optical unit comprising a radiation source, a detector and a grating, and scanning device including the optical unit) |
| GB0408383D0 (en) | 2004-04-15 | 2004-05-19 | Koninkl Philips Electronics Nv | A radio network and a method of operating a radio network |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4003059A (en) * | 1974-02-07 | 1977-01-11 | Canon Kabushiki Kaisha | Optical recorder having focus controlling means |
| NL176315C (nl) * | 1976-05-12 | 1985-03-18 | Philips Nv | Optische aftastinrichting. |
| NL7608561A (nl) * | 1976-08-02 | 1978-02-06 | Philips Nv | Optische uitleeseenheid voor het aftasten van een registratiedrager voorzien van een stra- lingsreflekterende informatiestruktuur. |
| CA1091966A (fr) * | 1976-10-15 | 1980-12-23 | Chiaki Kojima | Appareil de lecture de signaux enregistres sur support |
| US4245882A (en) * | 1977-11-04 | 1981-01-20 | Environmental Research Institute Of Michigan | Doubly modulated on-axis thick hologram optical element |
| NL7713711A (nl) * | 1977-12-12 | 1979-06-14 | Philips Nv | Optisch uitleeseenheid voor het uitlezen van een bewegende informatiedrager, in het bijzonder voor het uitlezen van een videoplaat. |
| JPS54109801A (en) * | 1978-02-17 | 1979-08-28 | Toshiba Corp | Optical reader |
| JPS5573934A (en) * | 1978-11-20 | 1980-06-04 | Mansei Kogyo Kk | Reader for optical information |
| JPS55163566A (en) * | 1979-06-05 | 1980-12-19 | Sony Corp | Hologram lens and its production and optical system signal using this hologram lens |
| JPS5647933A (en) * | 1979-09-25 | 1981-04-30 | Sony Corp | Optical signal head |
| JPS5680836A (en) * | 1979-12-07 | 1981-07-02 | Seiko Instr & Electronics Ltd | Optical information reader |
-
1981
- 1981-11-04 JP JP56176749A patent/JPS5880139A/ja active Pending
-
1982
- 1982-11-01 AU AU90071/82A patent/AU556305B2/en not_active Expired
- 1982-11-02 NL NL8204248A patent/NL8204248A/nl active Search and Examination
- 1982-11-02 CA CA000414665A patent/CA1177165A/fr not_active Expired
- 1982-11-03 GB GB08231383A patent/GB2109583B/en not_active Expired
- 1982-11-04 DE DE3240734A patent/DE3240734C2/de not_active Expired - Lifetime
- 1982-11-04 KR KR8204975A patent/KR880002635B1/ko active
- 1982-11-04 FR FR828218524A patent/FR2519458B1/fr not_active Expired - Lifetime
- 1982-11-04 AT AT0403082A patent/AT376510B/de not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| GB2109583A (en) | 1983-06-02 |
| DE3240734C2 (de) | 1995-11-30 |
| AT376510B (de) | 1984-11-26 |
| JPS5880139A (ja) | 1983-05-14 |
| GB2109583B (en) | 1985-07-17 |
| FR2519458A1 (fr) | 1983-07-08 |
| AU556305B2 (en) | 1986-10-30 |
| ATA403082A (de) | 1984-04-15 |
| CA1177165A (fr) | 1984-10-30 |
| FR2519458B1 (fr) | 1991-07-19 |
| AU9007182A (en) | 1983-05-12 |
| KR840002561A (ko) | 1984-07-02 |
| KR880002635B1 (en) | 1988-12-07 |
| DE3240734A1 (de) | 1983-05-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A85 | Still pending on 85-01-01 | ||
| BA | A request for search or an international-type search has been filed | ||
| BB | A search report has been drawn up | ||
| BC | A request for examination has been filed | ||
| BN | A decision not to publish the application has become irrevocable |