KR970050329A - Dual Focus Optical Pick-Up Unit - Google Patents

Dual Focus Optical Pick-Up Unit Download PDF

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Publication number
KR970050329A
KR970050329A KR1019950054340A KR19950054340A KR970050329A KR 970050329 A KR970050329 A KR 970050329A KR 1019950054340 A KR1019950054340 A KR 1019950054340A KR 19950054340 A KR19950054340 A KR 19950054340A KR 970050329 A KR970050329 A KR 970050329A
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KR
South Korea
Prior art keywords
lens
focus
optical pick
dual focus
focus optical
Prior art date
Application number
KR1019950054340A
Other languages
Korean (ko)
Inventor
김기태
Original Assignee
배순훈
대우전자 주식회사
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 배순훈, 대우전자 주식회사 filed Critical 배순훈
Priority to KR1019950054340A priority Critical patent/KR970050329A/en
Publication of KR970050329A publication Critical patent/KR970050329A/en

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Abstract

본 발명은 디지탈 디스크 플레이어의 듀얼 포커스 광 픽-업장치에 관한 것으로, 특히 두께가 1.2mm인 디스크과, 두께가 0.6mm 인 디스크에 기록된 정보를 읽어들일 수 있도록 하는 디지탈 디스크 플레이어의 듀얼 포커스 광 픽-업장치에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dual focus optical pick-up device of a digital disc player, and more particularly, to a dual focus optical pick of a digital disc player capable of reading information recorded on a disc having a thickness of 1.2 mm and a disc having a thickness of 0.6 mm. It is about an up device.

이를 위하여 홀로그램소자로부터 발생되는 레이저 빔을 집광하여 두께가 서로 다른 제1 및 제2디스크의 정보를 읽어들이는 듀얼 포커스 광 픽-업장치에 있어서To this end, in the dual focus optical pick-up apparatus for condensing a laser beam generated from the hologram element to read information of the first and second disks having different thicknesses

상기 홀로그램소자와 소정간격을 두고 설치되어 입사빔을 전량 반사하는 반사렌즈, 상기 반사렌즈의 상부에 소정간격을 두고 설치되고, 상기 반사렌즈로부터 조사되는 빔을 집광하여 제2디스크에 포커스를 형성하는 대물렌즈와, 상기 대물렌즈의 외주면에 일체로 형성되어 상기 반사렌즈로부터 조사되는 빔을 투과, 반사 및 집속하여 제1디스크상에 포커스를 형성하는 빔 스프리트로 이루어진 듀얼 포커스렌즈를 구비하여서 된 것이다.A reflection lens installed at a predetermined distance from the hologram element and reflecting the entire incident beam, and installed at an upper portion of the reflection lens, and focusing a beam irradiated from the reflection lens to form a focus on a second disk; And a dual focus lens formed integrally with an objective lens and with an outer circumferential surface of the objective lens and configured to transmit, reflect, and focus a beam irradiated from the reflective lens to form a focus on the first disk.

Description

듀얼 포커스 광 픽-업장치Dual Focus Optical Pick-Up Unit

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제3도는 본 발명에 따른 광 픽-업장치의 구성도.3 is a block diagram of an optical pick-up apparatus according to the present invention.

제4도는 본 발명에 따른 듀얼 포커스렌즈의 단면도.4 is a cross-sectional view of a dual focus lens according to the present invention.

Claims (1)

홀로그램소자(61)로부터 발생되는 레이저 빔을 집광하여 두께가 서로 다른 제1 및 제2디스크(58)(59)의 정보를 읽어들이는 듀얼 포커스 광 픽-업장치에 있어서In a dual focus optical pick-up apparatus for condensing a laser beam generated from the hologram element 61 to read information of the first and second disks 58, 59 having different thicknesses. 상기 홀로그램소자(61)와 소정간격을 두고 설치되어 입사빔을 전량 반사하는 반사렌즈(62), 상기 반사렌즈(62)의 상부에 소정간격을 두고 설치되고, 상기 반사렌즈로(62)부터 조사되는 빔을 집광하여 제2디스크(59)에 포커스를 형성하는 대물렌즈(64)와, 상기 대물렌즈(64)의 외주면에 일체로 형성되어 상기 반사렌즈(62)로부터 조사되는 빔을 투과, 반사 및 집속하여 제1디스크(58)상에 포커스를 형성하는 빔 스프리트(65)로 이루어진 듀얼 포커스렌즈(63)를 구비하여서 된 듀얼 포커스 광 픽-업장치.The reflective lens 62 is disposed at a predetermined distance from the hologram element 61 and is disposed at a predetermined interval on the reflective lens 62 to reflect the entire incident beam, and is irradiated from the reflective lens path 62. The objective lens 64 which focuses the beam to focus on the second disk 59, and is integrally formed on the outer circumferential surface of the objective lens 64 to transmit and reflect the beam irradiated from the reflective lens 62 And a dual focus lens (63) comprising a beam split (65) for focusing and focusing on the first disk (58). ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950054340A 1995-12-22 1995-12-22 Dual Focus Optical Pick-Up Unit KR970050329A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950054340A KR970050329A (en) 1995-12-22 1995-12-22 Dual Focus Optical Pick-Up Unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950054340A KR970050329A (en) 1995-12-22 1995-12-22 Dual Focus Optical Pick-Up Unit

Publications (1)

Publication Number Publication Date
KR970050329A true KR970050329A (en) 1997-07-29

Family

ID=66617367

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019950054340A KR970050329A (en) 1995-12-22 1995-12-22 Dual Focus Optical Pick-Up Unit

Country Status (1)

Country Link
KR (1) KR970050329A (en)

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E601 Decision to refuse application