KR20000002774U - Optical pickup - Google Patents
Optical pickup Download PDFInfo
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- KR20000002774U KR20000002774U KR2019980012710U KR19980012710U KR20000002774U KR 20000002774 U KR20000002774 U KR 20000002774U KR 2019980012710 U KR2019980012710 U KR 2019980012710U KR 19980012710 U KR19980012710 U KR 19980012710U KR 20000002774 U KR20000002774 U KR 20000002774U
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- South Korea
- Prior art keywords
- pickup
- lens
- focusing
- track
- coil
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- Optical Recording Or Reproduction (AREA)
Abstract
본 고안은 픽업본체를 제작할 때 렌즈를 일체로 사출 성형함으로써, 픽업본체에 조립되는 부품수를 줄여 무게 밸런스가 유지되도록하고 또한 작업성이 향상되는 광픽업에 관한 것으로서, 특히 디스크 쪽으로 빔을 주사하는 렌즈가 설치된 픽업본체가 포커싱코일과 트랙코일에 의해 포커싱 및 트랙방향으로 유동성을 갖는 광픽업에 있어서, 상기 픽업본체의 선단부에 상기 렌즈가 일체로 사출 성형되고 상기 포커싱코일과 트랙코일이 패턴으로 형성된 플랙시블기판이 상기 픽업본체의 내부에 설치되며 상기 픽업본체가 포커싱 및 트랙 쪽으로 유동성을 갖도록 상기 플랙시블기판과 홀더가 탄성지지부로 연결된 특징이 있다.The present invention relates to an optical pickup in which the lens is integrally injection-molded when manufacturing a pickup main body, thereby reducing the number of parts assembled in the pickup main body so that the weight balance is maintained and also improving workability. In an optical pickup in which a pickup body provided with a lens has a fluidity in focusing and track direction by a focusing coil and a track coil, the lens is integrally injection-molded at the tip of the pickup body, and the focusing coil and the track coil are formed in a pattern. A flexible substrate is installed inside the pickup body, and the flexible substrate and the holder are connected to each other by an elastic support such that the pickup body has fluidity toward focusing and track.
Description
본 고안은 광픽업에 관한 것으로서, 더욱 상세하게는 포커싱코일과 트랙코일을 플랙시블 인쇄회로기판(PCB)로 구성하고 렌즈를 픽업본체에 일체로 사출 성형함으로써, 제작성이 향상되는 광픽업에 관한 것이다.The present invention relates to an optical pickup, and more particularly, to an optical pickup having a focusing coil and a track coil made of a flexible printed circuit board (PCB) and integrally injection-molding a lens to a pickup body, thereby improving productivity. will be.
일반적으로 광픽업은 도 1에 도시된 바와 같이 픽업본체(1)의 선단에 빔을 디스크 쪽으로 주사하는 렌즈(2)가 설치되고 픽업본체(1)의 중앙에는 렌즈를 디스크에 대하여 포커싱방향과 트랙방향으로 이동시키는 포커싱 및 트랙킹코일이 패턴으로 형성된 플랙시블기판(3)이 설치된다. 그리고 플랙시블기판(3)과 홀더(5)가 탄성지지부(4)를 통하여 연결되면 픽업본체(1)가 들뜬상태로 설치되어 유동성을 갖는다.In general, the optical pickup is provided with a lens (2) for scanning the beam toward the disk at the tip of the pickup main body 1, as shown in Figure 1 and the lens in the center of the pickup main body 1 in the focusing direction and track with respect to the disk The flexible board 3 in which the focusing and tracking coils moving in the direction are formed in a pattern is provided. When the flexible substrate 3 and the holder 5 are connected through the elastic support 4, the pickup main body 1 is installed in an excited state to have fluidity.
이처럼 구성된 종래의 광픽업은 탄성지지부(4)가 탄성을 갖는 와이어로 구성되며 탄성지지부를 통하여 홀더(5)에 매달려 설치된 픽업본체(1)는 포커싱과 트랙방향으로 유동성을 따라서 픽업본체(1) 내부의 플랙시블기판(3)에 전류가 인가되면 픽업본체(1)는 탄성지지부(4)를 통하여 포커싱방향과 트랙방향으로 유동되고 이 과정에서 렌즈(2)가 함께 유동되어 빔이 디스크 쪽으로 주사된다.In the conventional optical pickup configured as described above, the pickup main body 1 is formed of a wire having elasticity and the elastic support part 4 is suspended from the holder 5 through the elastic support part. When current is applied to the flexible substrate 3 inside, the pickup body 1 flows in the focusing direction and the track direction through the elastic support 4, and in this process, the lens 2 flows together to scan the beam toward the disc. do.
그러나 종래의 광픽업은 픽업본체(1)와 렌즈(2)가 별도로 제작된 다음 조립되기 때문에 조립오차로 인하여 빔의 주사경로가 변할 우려가 있으며 또한 부품수가 증가되어 조립성이 저하되는 단점이 있다. 픽업본체(1)에 탄성지지부와 플랙시블기판 및 렌즈를 각각 조립해야 됨으로 이들이 정위치에 조립되지 않으면 무게 밸런스가 맞지 않아 픽업본체가 유연하게 유동되지 못하는 등의 단점이 발생된다.However, in the conventional optical pickup, since the pickup main body 1 and the lens 2 are manufactured separately and then assembled, there is a concern that the scanning path of the beam may change due to an assembly error, and the assembly number may be reduced due to an increase in the number of parts. . Since the elastic support portion, the flexible substrate, and the lens must be assembled to the pickup body 1, respectively, if they are not assembled in the correct position, the weight body is not balanced so that the pickup body may not flow flexibly.
본 고안은 종래의 문제점을 감안하여 개발한 것으로서, 본 고안의 목적은 픽업본체를 제작할 때 렌즈를 일체로 사출 성형함으로써, 픽업본체에 조립되는 부품수를 줄여 무게 밸런스가 유지되도록하고 또한 작업성이 향상되는 광픽업을 제공함에 있다.The present invention was developed in view of the conventional problems, and an object of the present invention is to injection molding the lens integrally when manufacturing the pickup body, thereby reducing the number of parts assembled to the pickup body to maintain the weight balance and workability It is to provide an improved optical pickup.
도 1은 종래 광픽업의 평면도,1 is a plan view of a conventional optical pickup,
도 2는 본 고안 광픽업의 사시도,2 is a perspective view of the present invention optical pickup,
도 3은 본 고안 광픽업의 평면도.3 is a plan view of the present invention optical pickup.
<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>
10 : 픽업본체 11 : 렌즈10: pickup body 11: the lens
12 : 플랙시블기판 13 : 탄성지지부12: flexible substrate 13: elastic support
14 : 홀더14: Holder
상기 목적을 달성하기 위하여 본 고안은 디스크 쪽으로 빔을 주사하는 렌즈가 설치된 픽업본체가 포커싱코일과 트랙코일에 의해 포커싱 및 트랙방향으로 유동성을 갖는 광픽업에 있어서, 상기 픽업본체의 선단부에 상기 렌즈가 일체로 사출 성형되고 상기 포커싱코일과 트랙코일이 패턴으로 형성된 플랙시블기판이 상기 픽업본체의 내부에 설치되며 상기 픽업본체가 포커싱 및 트랙 쪽으로 유동성을 갖도록 상기 플랙시블기판과 홀더가 탄성지지부로 연결된 특징이 있다.In order to achieve the above object, the present invention provides an optical pickup in which a pickup main body provided with a lens for scanning a beam toward a disc has a fluidity in focusing and track direction by a focusing coil and a track coil, and the lens is provided at the front end of the pickup main body. A flexible substrate integrally injection molded and formed with the focusing coil and the track coil in a pattern is installed inside the pickup body, and the flexible substrate and the holder are connected to the elastic support so that the pickup body has fluidity toward the focusing and the track. There is this.
이하 본 고안의 바람직한 실시예를 첨부 도면에 따라 상세히 설명하면 다음과 같다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
도 2는 본 고안 광픽업의 사시도 로서, 픽업본체(10)의 선단에 디스크 쪽으로 빔을 주사하는 렌즈(11)가 설치된다. 렌즈(11)는 투명한 재질로 구성되며 픽업본체(10)와 일체로 사출 성형된다. 또한 픽업본체(10)의 내부에 픽업본체(10)를 포커싱방향과 트랙방향으로 유동시키기 위해 포커싱 및 트랙코일이 패턴으로 형성된 플랙시블기판(12)이 구비되며 플랙시블기판의 양측으로 전자기력을 발생시키기 위한 요크 및 마그네트가 각각 배치된다.2 is a perspective view of the optical pickup according to the present invention, and a lens 11 for scanning a beam toward a disk is provided at the tip of the pickup body 10. The lens 11 is made of a transparent material and is injection molded integrally with the pickup body 10. In addition, in order to flow the pickup body 10 in the focusing direction and the track direction, a flexible substrate 12 having a focusing and a track coil in a pattern is provided inside the pickup body 10 and generates electromagnetic force on both sides of the flexible substrate. Yoke and magnet are arranged respectively.
또한 픽업본체(10)를 홀더(14)에 매달아 설치하기 위한 탄성지지부(13)가 구비된다. 탄성지지부(13)는 픽업본체(10)를 포커싱방향 및 트랙방향으로 유동되도록 안내하는 역할을 하는 것으로서, 선단은 플랙시블기판(12)의 양측면에 결합되고 후단은 홀더(14)의 전면에 결합된다.In addition, an elastic support portion 13 for hanging the pickup main body 10 to the holder 14 is provided. The elastic support 13 serves to guide the pickup main body 10 to flow in the focusing direction and the track direction. The front end is coupled to both sides of the flexible substrate 12 and the rear end is coupled to the front surface of the holder 14. do.
이처럼 구성된 본 고안은 픽업본체(10)를 구성하는 선단에 렌즈(11)가 일체로 사출 성형된다. 이때 렌즈(11)는 빔을 주사하기위해 투명한 재질로 사출되며 픽업본체(10)는 같은 투명재질 또는 불투명재질로 사출할수 있다. 그리고 픽업본체(10)의 내부 중앙에 플랙시블기판(12)이 사출과정에서 일체로 결합된다. 플랙시블기판(12)은 포커싱코일과 트랙코일이 패턴으로 형성되어 있으므로 전류가 인가되면 요크 및 마그네트와의 상호작용에 의해 픽업본체(10)를 포커싱과 트랙방향으로 각각 유동시킨다.In the present invention configured as described above, the lens 11 is integrally injection-molded at the front end of the pickup body 10. At this time, the lens 11 is injected into a transparent material to scan the beam and the pickup body 10 may be injected into the same transparent material or opaque material. And the flexible substrate 12 is integrally combined in the injection process in the inner center of the pickup body (10). Since the flexible board 12 has the focusing coil and the track coil in a pattern, when the current is applied, the pickup main body 10 flows in the focusing and track directions by interaction with the yoke and the magnet.
또한 플랙시블기판(10)의 양측면 상하측으로 와이어 형태의 탄성지지부(13)가 연결되며 이 탄성지지부는 홀더(14)와 연결된 상태에서 픽업본체(10)를 유동성있게 지지해준다. 따라서 탄성지지부(13)를 통하여 인가되는 전류가 플랙시블기판(12)으로 공급되면 패턴으로 형성된 포커싱코일과 트랙코일에 전류가 흐르면서 마그네트와의 전자기력에 의해 픽업본체(10)를 포커싱방향과 트랙방향으로 유동시킨다. 이때 픽업본체(10)와 일체로 형성된 렌즈(11)가 유동되면서 빔을 디스크 쪽으로 주사시킨다.In addition, the elastic support 13 in the form of a wire is connected to the upper and lower sides of both sides of the flexible substrate 10 and the elastic support supports the pickup body 10 in a fluid state in connection with the holder 14. Therefore, when the current applied through the elastic support 13 is supplied to the flexible substrate 12, the current flows through the focusing coil and the track coil formed in a pattern, and the pickup main body 10 is moved in the focusing direction and the track direction by electromagnetic force with the magnet. Flow to At this time, the lens 11 integrally formed with the pickup body 10 flows to scan the beam toward the disc.
이상에서와 같이 본 고안에 따르면 픽업본체의 선단부에 빔을 주사시키는 렌즈가 일체로 사출 성형된다. 따라서 렌즈를 조립하는 과정이 생략됨으로 조립성이 향상되고 또한 픽업본체와 렌즈가 일체로 사출되기 때문에 렌즈의 주사경로가 항상일정하여 제품의 신뢰성이 향상되는 등의 효과가 있다.As described above, according to the present invention, a lens for scanning a beam at the tip of the pickup main body is integrally injection molded. Therefore, the assembly process of the lens is omitted, and the assembly is improved, and since the pickup body and the lens are integrally injected, the scanning path of the lens is always constant, thereby improving the reliability of the product.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019980012710U KR20000002774U (en) | 1998-07-10 | 1998-07-10 | Optical pickup |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019980012710U KR20000002774U (en) | 1998-07-10 | 1998-07-10 | Optical pickup |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR20000002774U true KR20000002774U (en) | 2000-02-07 |
Family
ID=69503136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019980012710U Withdrawn KR20000002774U (en) | 1998-07-10 | 1998-07-10 | Optical pickup |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR20000002774U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100486246B1 (en) * | 2002-02-26 | 2005-05-03 | 삼성전자주식회사 | Optical pick-up actuator and optical recording/reproducing apparatus |
-
1998
- 1998-07-10 KR KR2019980012710U patent/KR20000002774U/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100486246B1 (en) * | 2002-02-26 | 2005-05-03 | 삼성전자주식회사 | Optical pick-up actuator and optical recording/reproducing apparatus |
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| Date | Code | Title | Description |
|---|---|---|---|
| UA0108 | Application for utility model registration |
Comment text: Application for Utility Model Registration Patent event code: UA01011R08D Patent event date: 19980710 |
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| UG1501 | Laying open of application | ||
| UC1204 | Withdrawal of no request for examination | ||
| WITN | Application deemed withdrawn, e.g. because no request for examination was filed or no examination fee was paid |