KR900010644U - 광디스크시스템의 광 헤드 장치 - Google Patents
광디스크시스템의 광 헤드 장치Info
- Publication number
- KR900010644U KR900010644U KR2019880019238U KR880019238U KR900010644U KR 900010644 U KR900010644 U KR 900010644U KR 2019880019238 U KR2019880019238 U KR 2019880019238U KR 880019238 U KR880019238 U KR 880019238U KR 900010644 U KR900010644 U KR 900010644U
- Authority
- KR
- South Korea
- Prior art keywords
- optical
- head device
- disc system
- optical disc
- optical head
- 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
- G11B7/12—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
-
- 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
- G11B7/13—Optical detectors therefor
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Head (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019880019238U KR930002127Y1 (ko) | 1988-11-28 | 1988-11-28 | 광디스크시스템의 광 헤드 장치 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019880019238U KR930002127Y1 (ko) | 1988-11-28 | 1988-11-28 | 광디스크시스템의 광 헤드 장치 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR900010644U true KR900010644U (ko) | 1990-06-02 |
| KR930002127Y1 KR930002127Y1 (ko) | 1993-04-26 |
Family
ID=19281639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019880019238U KR930002127Y1 (ko) | 1988-11-28 | 1988-11-28 | 광디스크시스템의 광 헤드 장치 |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR930002127Y1 (ko) |
-
1988
- 1988-11-28 KR KR2019880019238U patent/KR930002127Y1/ko not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR930002127Y1 (ko) | 1993-04-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| E902 | Notification of reason for refusal | ||
| E701 | Decision to grant or registration of patent right | ||
| REGI | Registration of establishment | ||
| FPAY | Annual fee payment |
Payment date: 19960209 Year of fee payment: 6 |
|
| LAPS | Lapse due to unpaid annual fee |