KR970017265A - Optical discs and their optical pickup devices - Google Patents

Optical discs and their optical pickup devices Download PDF

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Publication number
KR970017265A
KR970017265A KR1019950029430A KR19950029430A KR970017265A KR 970017265 A KR970017265 A KR 970017265A KR 1019950029430 A KR1019950029430 A KR 1019950029430A KR 19950029430 A KR19950029430 A KR 19950029430A KR 970017265 A KR970017265 A KR 970017265A
Authority
KR
South Korea
Prior art keywords
optical
substrate
pickup devices
data
address
Prior art date
Application number
KR1019950029430A
Other languages
Korean (ko)
Inventor
강동철
Original Assignee
구자홍
Lg 전자 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 구자홍, Lg 전자 주식회사 filed Critical 구자홍
Priority to KR1019950029430A priority Critical patent/KR970017265A/en
Publication of KR970017265A publication Critical patent/KR970017265A/en

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Abstract

본 발명의 광디스크는 기판 위에 사용자가 정보를 기록하기 위한 데이타층과, 디스크의 절대위치를 프리포맷 시키기 위한 어드래스층을 적층시켜 반복 기록 재생할 수 있도록 구성하며, 상기 데이타층과 어드레스층을 렌즈계를 통해 이중촛점으로 각각 읽어내도록 함으로써 사용자가 쓸 수 있는 데이타 영역이 중가하며, 어드레스 및 정보신호간의 크로스토크를 줄이고 트랙피치를 축소시켜 기록밀도를 향상시킬 수 있을 뿐만 아니라 디스크의 데이타층을 2층으로 제작하는 경우 재생전용 디스크와 호환할 수 있는 효과가 있다.The optical disk of the present invention is constructed so that a data layer for recording information on a substrate and an address layer for preformatting the absolute position of the disk can be repeatedly recorded and reproduced on a substrate. By reading the data in double focus, the data area that can be written by the user increases, and crosstalk between address and information signals can be reduced, and the track pitch can be reduced to improve the recording density. When produced, the effect is compatible with the disc for playback.

Description

광디스크 및 그의 광픽업장치Optical discs and their optical pickup devices

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제4도는 본 발명에 의한 광디스크의 단면도,4 is a sectional view of an optical disk according to the present invention;

제5도는 본 발명에 의한 광디스크의 피트 구조도,5 is a pit structure diagram of an optical disk according to the present invention;

제6도는 본 발명에 의한 광디스크를 픽업하기 위한 광픽업 장치의 구성도.6 is a block diagram of an optical pickup apparatus for picking up an optical disk according to the present invention.

Claims (2)

기판 위에 사용자가 정보를 기록하기 위한 데이타층과, 디스크의 절대위치를 프리포맷시키기 위한 어드레스층을 적층시켜 반복 기록, 재생할 수 있도록 구성된 것을 특징으로 하는 광디스크.An optical disc comprising a data layer for recording information on a substrate and an address layer for preformatting an absolute position of the disc, the recording and reproduction being repeated. 광디스크로부터 반사된 빛이 이중촛점을 갖도록 하기 위한 렌즈계와, 각 촛점으로부터 해당정보를 읽어내기 위한 각각의 포토디텍터를 포함하여 구성된 것을 특징으로 하는 광디스크의 광픽업장치.An optical pickup apparatus for an optical disc, comprising a lens system for allowing the light reflected from the optical disc to have a double focus, and respective photodetectors for reading the corresponding information from each focus. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950029430A 1995-09-07 1995-09-07 Optical discs and their optical pickup devices KR970017265A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950029430A KR970017265A (en) 1995-09-07 1995-09-07 Optical discs and their optical pickup devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950029430A KR970017265A (en) 1995-09-07 1995-09-07 Optical discs and their optical pickup devices

Publications (1)

Publication Number Publication Date
KR970017265A true KR970017265A (en) 1997-04-30

Family

ID=66596697

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019950029430A KR970017265A (en) 1995-09-07 1995-09-07 Optical discs and their optical pickup devices

Country Status (1)

Country Link
KR (1) KR970017265A (en)

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