KR0155102B1 - 힌지타입 광픽업 액츄에이터의 이중 대물렌즈 - Google Patents
힌지타입 광픽업 액츄에이터의 이중 대물렌즈 Download PDFInfo
- Publication number
- KR0155102B1 KR0155102B1 KR1019950022766A KR19950022766A KR0155102B1 KR 0155102 B1 KR0155102 B1 KR 0155102B1 KR 1019950022766 A KR1019950022766 A KR 1019950022766A KR 19950022766 A KR19950022766 A KR 19950022766A KR 0155102 B1 KR0155102 B1 KR 0155102B1
- Authority
- KR
- South Korea
- Prior art keywords
- objective lens
- focusing
- lens holder
- optical pickup
- pickup actuator
- Prior art date
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 40
- 230000009977 dual effect Effects 0.000 claims abstract description 12
- 230000005415 magnetization Effects 0.000 claims abstract description 3
- 230000003068 static effect Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000725 suspension Substances 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
- G11B7/1372—Lenses
- G11B7/1374—Objective lenses
-
- 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
- G11B7/0901—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 track following 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
- 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
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Recording Or Reproduction (AREA)
Abstract
Description
Claims (3)
- 서보시스템에서 전기적 신호를 인가 받아 안착된 디스크의 반사면에 촛점을 집속시키는 광픽업 액츄에이터에 있어서, 상기 디스크의 반사면에 각기 다른 촛점을 집속시키는 제1대물렌즈(20) 및 제2대물렌즈(30)가 설치되도록 해주는 제1렌즈공(51) 및 제2렌즈공(52)이 형성된 대물렌즈홀더(50)와, 상기 대물렌즈홀더(50)의 외측 양면에 부착되어 대물렌즈홀더(50)의 포커싱 방향조정을 수행하는 포커싱조정코일(109)(110)과, 상기 포커싱조정코일(109)(110)과, 상기 포커싱조정코일(109)(110)의 외측면에 부착되어 대물렌즈홀더(50)의 트랙킹 방향 조정을 수행하는 트랙킹 조정코일(111)(112)과 상기 대물렌즈홀더(50)에 설치된 포커싱 조정코일(109)(110) 및 트랙킹조정코일(111)(112)이 유동가능하게 끼움 결합되는 내측요오크(107)(108)와 상기 대물렌즈홀더(50)에 설치된 포커싱조정코일(109)(110) 및 트랙킹 조정코일(111)(112)에 자화 반발력을 발생시키는 영구자석(105)(106)이 내면에 부착된 외측요오크(103)(104)와, 상기 내, 외측요오크(103)(104)(105)(106)가 설치되는 플레이트(40)로 구성된 것을 특징으로하는 힌지타입 광픽업 액츄에이터의 이중대물렌즈.
- 제1항에 있어서, 상기 제1대물렌즈(20) 및 제2대물렌즈(30)는 각각 0.6㎜와 1.2㎜ 디스크중에 하나의 디스크에 선택적으로 촛점을 집속시키도록 구성된 것을 특징으로하는 힌지타입 광픽업 액츄에이터의 이중대물렌즈.
- 제1항에 있어서, 상기 플레이트(40)에 레이저가 통과하는 제1레이저 통과공(41) 및 제2레이저통과공(42)이 각각 형성되는 것을 특징으로하는 힌지타입 광픽업 액츄에이터의 이중대물렌즈.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950022766A KR0155102B1 (ko) | 1995-07-28 | 1995-07-28 | 힌지타입 광픽업 액츄에이터의 이중 대물렌즈 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950022766A KR0155102B1 (ko) | 1995-07-28 | 1995-07-28 | 힌지타입 광픽업 액츄에이터의 이중 대물렌즈 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR970007889A KR970007889A (ko) | 1997-02-21 |
KR0155102B1 true KR0155102B1 (ko) | 1998-12-15 |
Family
ID=19421961
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019950022766A KR0155102B1 (ko) | 1995-07-28 | 1995-07-28 | 힌지타입 광픽업 액츄에이터의 이중 대물렌즈 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR0155102B1 (ko) |
-
1995
- 1995-07-28 KR KR1019950022766A patent/KR0155102B1/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR970007889A (ko) | 1997-02-21 |
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