KR930014337A - Objective driving device of optical disk driver - Google Patents
Objective driving device of optical disk driver Download PDFInfo
- Publication number
- KR930014337A KR930014337A KR1019910025991A KR910025991A KR930014337A KR 930014337 A KR930014337 A KR 930014337A KR 1019910025991 A KR1019910025991 A KR 1019910025991A KR 910025991 A KR910025991 A KR 910025991A KR 930014337 A KR930014337 A KR 930014337A
- Authority
- KR
- South Korea
- Prior art keywords
- objective lens
- focusing
- sides
- lens holder
- driving device
- Prior art date
Links
Landscapes
- Optical Recording Or Reproduction (AREA)
Abstract
본 발명은 LDP/CDP 및 광디스크 드라이버의 대물렌즈 촛점을 정확히 맞추기 위한 대물렌즈 구동장치에 관한 것으로, 사각기둥 형태의 중간가동부(11)(12)와, 중심에 광경로홀이 뚫려있고 상부에 대물렌즈(19)가 결합되는 사각기둥 형태의 대물렌즈홀더(14)와, 상기 대물렌즈 홀더의 4측면중 2측면에 부착된 포커싱용 판스프링(13) 및 나머지 2측면에 부착된 영구자석(15)(16)과, 상기 중간가동부와 고정부(30) 사이에 설치된 트랙킹용 판스프링(20)(21)과, 상기 영구자석과 대향하여 근접하게 설치된 포커스를 코일(17)과 트랙킹용 코일(18)를 구비하여 상기 중간가동부와 대물렌즈홀더가 고주파수에 의하여 공진되지 않도록 한것이다.The present invention relates to an objective lens driving device for precisely focusing an objective lens of an LDP / CDP and an optical disk driver. The objective lens holder 14 having a square pillar shape to which the lens 19 is coupled, the focusing plate spring 13 attached to two sides of the four sides of the objective lens holder, and the permanent magnet 15 attached to the remaining two sides. 16, the tracking plate springs 20 and 21 provided between the intermediate movable part and the fixed part 30, and the focusing coils 17 and tracking coils provided in close proximity to the permanent magnets. 18) to prevent the intermediate moving part and the objective lens holder from resonating by high frequency.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.
제2도는 본 발명에 의한 구동장치를 보인 사시도.2 is a perspective view showing a drive device according to the present invention.
제3도는 제2도의 A-A선 단면도.3 is a cross-sectional view taken along the line A-A of FIG.
제4도는 제2도의 B-B선 단면도.4 is a cross-sectional view taken along the line B-B in FIG.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019910025991A KR930014337A (en) | 1991-12-30 | 1991-12-30 | Objective driving device of optical disk driver |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019910025991A KR930014337A (en) | 1991-12-30 | 1991-12-30 | Objective driving device of optical disk driver |
Publications (1)
Publication Number | Publication Date |
---|---|
KR930014337A true KR930014337A (en) | 1993-07-23 |
Family
ID=67346163
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019910025991A KR930014337A (en) | 1991-12-30 | 1991-12-30 | Objective driving device of optical disk driver |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR930014337A (en) |
-
1991
- 1991-12-30 KR KR1019910025991A patent/KR930014337A/en not_active Application Discontinuation
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
E902 | Notification of reason for refusal | ||
E902 | Notification of reason for refusal | ||
E601 | Decision to refuse application |