KR910018991A - Optics with floating optical head - Google Patents

Optics with floating optical head Download PDF

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Publication number
KR910018991A
KR910018991A KR1019900006119A KR900006119A KR910018991A KR 910018991 A KR910018991 A KR 910018991A KR 1019900006119 A KR1019900006119 A KR 1019900006119A KR 900006119 A KR900006119 A KR 900006119A KR 910018991 A KR910018991 A KR 910018991A
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KR
South Korea
Prior art keywords
optical
floating
optical head
mirror
head according
Prior art date
Application number
KR1019900006119A
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Korean (ko)
Inventor
김영웅
유익형
이철우
박수한
조건호
Original Assignee
정용문
삼성전자 주식회사
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Publication date
Application filed by 정용문, 삼성전자 주식회사 filed Critical 정용문
Priority to KR1019900006119A priority Critical patent/KR910018991A/en
Priority to JP2336946A priority patent/JPH0413238A/en
Publication of KR910018991A publication Critical patent/KR910018991A/en

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    • 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

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  • Optical Recording Or Reproduction (AREA)
  • Optical Head (AREA)

Abstract

내용 없음No content

Description

부동형 광학헤드를 채택한 광학기기Optics with floating optical head

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

제2도는 본 발명에 따른 부동형 광학헤드의 구성도, 제3도는 빔 익스팬터 (BEAM EXPANDER)를 이용하여 타원형으로 빔의 직경을 확장시킨 예시도, 제4도는 광디스크(11)에 반사된 빔이 되돌아오는 광로를 도시한 도면.2 is a configuration diagram of a floating optical head according to the present invention, FIG. 3 is an illustration of extending the diameter of the beam in an elliptical shape using a beam expander, and FIG. 4 is a beam reflected by the optical disk 11. A diagram showing this return light path.

Claims (11)

레이저빔을 발하는 레이저 다이오드와, 이 레이저다이오드로부터의 빔을 접속시켜 주는 접속 렌즈와, 상기 빔을 분할시키는 빔분할기와, 상기 빔분할기에 대칭되게 설치되는 한쌍의 신호검출부와, 포커싱 및 트랙킹을 보정하는 보정광학계와, 상기의 보정광학계를 통과한 빔을 직경비가 다른 빔으로 만들어주는 확대렌즈계와, 상기 확대렌즈례를 통고한 빔을 반사시켜 주는 거울과, 상기 거울에서 방향이 바뀐 빔을 편향시켜주는 광주 사장치와, 주사방향의 촛점이 디스크면에 형성되도록 해주는 두꺼운 거울(THICK MIRROR)과, 주사방향에 직각으로 촛점을 맺게 해주는 대물렌즈로 구성되어 디스크의 편심에 의한 포커싱 및 트랙킹방향의 에리를 상기 보정광학계만을 구동하여 보정하는 것을 특징으로 하는 부동형 광학헤드를 채택한 광학기기.A laser diode for emitting a laser beam, a connecting lens for connecting the beam from the laser diode, a beam splitter for dividing the beam, a pair of signal detectors provided symmetrically to the beam splitter, and focusing and tracking are corrected. A deflection optical system, a magnification lens system for converting the beam passing through the correction optical system into a beam having a different diameter ratio, a mirror reflecting a beam through the magnification lens example, and a beam whose direction is changed from the mirror. Note consists of optical scanning device, thick mirror (THICK MIRROR) which allows the focusing direction of scanning direction to be formed on disk surface, and objective lens which focuses at right angle to scanning direction. The optical device employing the floating optical head, characterized in that for driving only the correction optical system to correct. 제1항에 있어서, 보정광학계는 주사방향으로 배율을 가진 한쌍의 원통형 렌즈를 전후좌우로 이동시켜 트랙킹포커싱 에러를 보정하는 포커싱 트랙킹보정부와, 상기 포커싱 에러를 보정하는 포커싱 트랙킹 보정부의 전 또는 후우치에 주사방향과 수직으로 배율을 갖는 원통형렌즈를 전후로 이동시켜 포커싱 보정부로 구성되는 것을 특징으로 하는 부동형 광학헤드를 채택한 광학기기.The system of claim 1, wherein the correction optical system includes a focusing tracking correction unit for correcting a tracking focusing error by moving a pair of cylindrical lenses having a magnification in the scanning direction in front, rear, left, and right, and before or after the focusing tracking correction unit correcting the focusing error. An optical device employing a floating optical head, comprising a focusing corrector by moving a cylindrical lens having a magnification perpendicular to the scanning direction vertically to a hoop. 제1항에 있어서, 두꺼운 거울(THICK MIRROR)을 채용하여 배율을 높여 주사광학계의 NA값을 향상시키는 것을 특징으로 하는 부동형 광학헤드를 채택한 광학기기.The optical device employing the floating optical head according to claim 1, wherein a thick mirror (THICK MIRROR) is employed to increase the magnification to improve the NA value of the scanning optical system. 제1항에 있어서, 대물렌즈는 상기 두꺼운 거울(THICK MIRROR)에서 반사된 빔을 주사방향에 대하여 수직 방향으로 배율을 갖는 원통형 렌즈인 것을 특징으로 하는 부동형 광학헤드를 채택한 광학기기.The optical device employing the floating optical head according to claim 1, wherein the objective lens is a cylindrical lens having a magnification in a direction perpendicular to a scanning direction of the beam reflected by the thick mirror. 제1항에 있어서, 광주사장치는 회전거울인 것을 특징으로 하는 부동형 광학헤드를 채택한 광학기기.The optical device employing the floating optical head according to claim 1, wherein the optical fiber is a rotating mirror. 제1항에 있어서, 상기 두꺼운 거울(THICK MIRROR)은 스캔빔의 직선으로 주사되도록 그 입사각()과 반사각(′)이 tan=2tan′인 것을 특징으로 하는 부동형 광학헤드를 채택한 광학기기.The method of claim 1, wherein the THICK MIRROR has an angle of incidence so as to be scanned in a straight line of the scan beam. ) And reflection angle ( ′) Tan = 2tan Optical apparatus employing a floating optical head, characterized in that '. 제1항에 있어서, 상기 확대렌즈계는 1매이상의 프레즘인 것을 특징으로 하는 부동형 광학헤드를 채택한 광학기기.The optical device employing the floating optical head according to claim 1, wherein the magnifying lens system is one or more prism. 제1항에 있어서, 상기 확대렌즈계는 원통렌즈 및 구면렌즈인 것을 특징으로 하는 부동형 광학헤드를 채택한 광학기기.An optical apparatus employing a floating optical head according to claim 1, wherein the magnifying lens system is a cylindrical lens or a spherical lens. 제1항에 있어서, 두꺼운 거울(THICK MIRROR)은 원통형 입사 및 반사면을 갖는 것을 특징으로 하는 부동형 광학헤드를 채택한 광학기기.The optical device employing a floating optical head according to claim 1, wherein the thick mirror has a cylindrical incidence and a reflection surface. 제1항에 있어서, 두꺼운 거울(THICK MIRROR)은 구면 또는 토릭(TORIC)입사 및 반사면을 갖는 것을 특징으로 하는 부동형 광학헤드를 채택한 광학기기.The optical device employing a floating optical head according to claim 1, wherein the THICK MIRROR has a spherical or TORIC incidence and a reflection surface. 제1항에 있어서, 두꺼운 거울(THICK MIRROR)의 전후에 수차보정광학계를 설치하는 것을 특징으로 하는 부동형 광학헤드를 채택한 광학기기.An optical apparatus employing a floating optical head according to claim 1, wherein an aberration correction optical system is provided before and after the thick mirror (THICK MIRROR). ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019900006119A 1990-04-30 1990-04-30 Optics with floating optical head KR910018991A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1019900006119A KR910018991A (en) 1990-04-30 1990-04-30 Optics with floating optical head
JP2336946A JPH0413238A (en) 1990-04-30 1990-11-29 Optical head using optical scanner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019900006119A KR910018991A (en) 1990-04-30 1990-04-30 Optics with floating optical head

Publications (1)

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KR910018991A true KR910018991A (en) 1991-11-30

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JP (1) JPH0413238A (en)
KR (1) KR910018991A (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6022743A (en) * 1984-04-24 1985-02-05 Olympus Optical Co Ltd Pickup for disk reproducer containing information recorded optically
JPS62218919A (en) * 1986-03-19 1987-09-26 Sankyo Seiki Mfg Co Ltd Scanning optical system
JPS6472118A (en) * 1987-09-14 1989-03-17 Hitachi Ltd F-theta optical system of optical scanning device

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JPH0413238A (en) 1992-01-17

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