JPH0522298B2 - - Google Patents
Info
- Publication number
- JPH0522298B2 JPH0522298B2 JP57208574A JP20857482A JPH0522298B2 JP H0522298 B2 JPH0522298 B2 JP H0522298B2 JP 57208574 A JP57208574 A JP 57208574A JP 20857482 A JP20857482 A JP 20857482A JP H0522298 B2 JPH0522298 B2 JP H0522298B2
- Authority
- JP
- Japan
- Prior art keywords
- light beam
- semiconductor laser
- shutter
- optical axis
- electromagnet
- 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 - Lifetime
Links
- 230000003287 optical effect Effects 0.000 claims description 45
- 239000004065 semiconductor Substances 0.000 claims description 29
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 13
- 230000000903 blocking effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 238000009751 slip forming 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
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Elements Other Than Lenses (AREA)
- Optical Head (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57208574A JPS59101041A (ja) | 1982-11-30 | 1982-11-30 | 光ピツクアツプ用ビ−ムシヤツタ− |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57208574A JPS59101041A (ja) | 1982-11-30 | 1982-11-30 | 光ピツクアツプ用ビ−ムシヤツタ− |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59101041A JPS59101041A (ja) | 1984-06-11 |
| JPH0522298B2 true JPH0522298B2 (US20100223739A1-20100909-C00005.png) | 1993-03-29 |
Family
ID=16558433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57208574A Granted JPS59101041A (ja) | 1982-11-30 | 1982-11-30 | 光ピツクアツプ用ビ−ムシヤツタ− |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59101041A (US20100223739A1-20100909-C00005.png) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100565074B1 (ko) * | 2004-07-20 | 2006-03-30 | 삼성전자주식회사 | 광주사장치용 광차폐장치 및 이를 이용한 광주사장치 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50139729A (US20100223739A1-20100909-C00005.png) * | 1974-04-24 | 1975-11-08 | ||
| JPS50156459A (US20100223739A1-20100909-C00005.png) * | 1974-06-06 | 1975-12-17 |
-
1982
- 1982-11-30 JP JP57208574A patent/JPS59101041A/ja active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50139729A (US20100223739A1-20100909-C00005.png) * | 1974-04-24 | 1975-11-08 | ||
| JPS50156459A (US20100223739A1-20100909-C00005.png) * | 1974-06-06 | 1975-12-17 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59101041A (ja) | 1984-06-11 |
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