KR970006978U - 광픽업 헤드의 대물렌즈 오염 방지장치 - Google Patents
광픽업 헤드의 대물렌즈 오염 방지장치Info
- Publication number
- KR970006978U KR970006978U KR2019950016582U KR19950016582U KR970006978U KR 970006978 U KR970006978 U KR 970006978U KR 2019950016582 U KR2019950016582 U KR 2019950016582U KR 19950016582 U KR19950016582 U KR 19950016582U KR 970006978 U KR970006978 U KR 970006978U
- Authority
- KR
- South Korea
- Prior art keywords
- objective lens
- optical pickup
- pickup head
- pollution device
- pollution
- 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
- G11B7/121—Protecting the head, e.g. against dust or impact with the record carrier
-
- 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
- G11B7/1372—Lenses
- G11B7/1374—Objective lenses
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Head (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019950016582U KR0132256Y1 (ko) | 1995-07-06 | 1995-07-06 | 광픽업 헤드의 대물렌즈 오염 방지장치 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019950016582U KR0132256Y1 (ko) | 1995-07-06 | 1995-07-06 | 광픽업 헤드의 대물렌즈 오염 방지장치 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR970006978U true KR970006978U (ko) | 1997-02-21 |
| KR0132256Y1 KR0132256Y1 (ko) | 1998-12-15 |
Family
ID=19417685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019950016582U KR0132256Y1 (ko) | 1995-07-06 | 1995-07-06 | 광픽업 헤드의 대물렌즈 오염 방지장치 |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR0132256Y1 (ko) |
-
1995
- 1995-07-06 KR KR2019950016582U patent/KR0132256Y1/ko not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR0132256Y1 (ko) | 1998-12-15 |
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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: 20060830 Year of fee payment: 9 |
|
| LAPS | Lapse due to unpaid annual fee |