JPS5622228A - Dust protector of optical recording and reproducing device - Google Patents

Dust protector of optical recording and reproducing device

Info

Publication number
JPS5622228A
JPS5622228A JP9785079A JP9785079A JPS5622228A JP S5622228 A JPS5622228 A JP S5622228A JP 9785079 A JP9785079 A JP 9785079A JP 9785079 A JP9785079 A JP 9785079A JP S5622228 A JPS5622228 A JP S5622228A
Authority
JP
Japan
Prior art keywords
dust
lens
free plate
aperture lens
recording
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
JP9785079A
Other languages
Japanese (ja)
Other versions
JPS638535B2 (en
Inventor
Yasuhisa Fukushima
Akifumi Nakada
Toshio Sato
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP9785079A priority Critical patent/JPS5622228A/en
Publication of JPS5622228A publication Critical patent/JPS5622228A/en
Publication of JPS638535B2 publication Critical patent/JPS638535B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To prevent dust from sticking to a lens surface and also to prevent its external damage by providing a dust-free plate, which covers an aperture lens, over the aperture lens that irradiates a discoid recording material with a fine light beam by stopping down.
CONSTITUTION: Aperture lens (5) is arranged opposing to dust-free plate 11, which is normally held on supporting table 13 through supporting shaft 12 while covering lens 5. One end part of dust-free plate 11 is coupled with plunger 15 by pin 13 and the other end part of dust-free plate (11), once solenoid 16 is fed with electric current, rotates upward on supporting shaft 12. As light emitted from light emission diode 17 is out off, an electric signal is sent to the processing circuit to feed electric current to solenoid 16. Thus, dust-free plate 11 is rotated upward in recording and reproduction and then rotated downward after the recording and reproduction so as to cover aperture lens 5, thereby preventing dust from sticking to lens (5).
COPYRIGHT: (C)1981,JPO&Japio
JP9785079A 1979-07-30 1979-07-30 Dust protector of optical recording and reproducing device Granted JPS5622228A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9785079A JPS5622228A (en) 1979-07-30 1979-07-30 Dust protector of optical recording and reproducing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9785079A JPS5622228A (en) 1979-07-30 1979-07-30 Dust protector of optical recording and reproducing device

Publications (2)

Publication Number Publication Date
JPS5622228A true JPS5622228A (en) 1981-03-02
JPS638535B2 JPS638535B2 (en) 1988-02-23

Family

ID=14203205

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9785079A Granted JPS5622228A (en) 1979-07-30 1979-07-30 Dust protector of optical recording and reproducing device

Country Status (1)

Country Link
JP (1) JPS5622228A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61178524U (en) * 1985-04-27 1986-11-07
JPH0567916U (en) * 1992-02-19 1993-09-10 ティアック株式会社 Lens cleaner for optical head
JPH05506563A (en) * 1989-12-15 1993-09-30 武田薬品工業株式会社 Monoclonal antibodies, their production methods and uses
EP0807934A1 (en) * 1996-05-15 1997-11-19 Staar Societe Anonyme Means for protecting reading and/or writing device
US5995467A (en) * 1996-07-25 1999-11-30 Sony Corporation Disc recording and/or reproducing apparatus with a liftable optical pickup apparatus and coordinated lens shutter
WO2002050825A1 (en) * 2000-12-20 2002-06-27 Thomson Licensing S.A. Recording and/or reproducing apparatus for optical recording media
US11054869B2 (en) 2019-10-21 2021-07-06 Samsung Electronics Co., Ltd. Electronic device including dustproof structure

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61178524U (en) * 1985-04-27 1986-11-07
JPH05506563A (en) * 1989-12-15 1993-09-30 武田薬品工業株式会社 Monoclonal antibodies, their production methods and uses
JPH0567916U (en) * 1992-02-19 1993-09-10 ティアック株式会社 Lens cleaner for optical head
EP0807934A1 (en) * 1996-05-15 1997-11-19 Staar Societe Anonyme Means for protecting reading and/or writing device
BE1010187A3 (en) * 1996-05-15 1998-02-03 Staar Sa Protection device for ways to play and / or recording.
US5946291A (en) * 1996-05-15 1999-08-31 Starr S.A. Shutter and bi-stable actuating member protection device for head of playback/recording unit
US5995467A (en) * 1996-07-25 1999-11-30 Sony Corporation Disc recording and/or reproducing apparatus with a liftable optical pickup apparatus and coordinated lens shutter
GB2315590B (en) * 1996-07-25 2001-01-17 Sony Corp Disc recording and/or reproducing apparatus and optical pickup apparatus
WO2002050825A1 (en) * 2000-12-20 2002-06-27 Thomson Licensing S.A. Recording and/or reproducing apparatus for optical recording media
US7007288B2 (en) 2000-12-20 2006-02-28 Thomson Licensing Recording and/or reproducing apparatus for optical recording media
US11054869B2 (en) 2019-10-21 2021-07-06 Samsung Electronics Co., Ltd. Electronic device including dustproof structure
US11625074B2 (en) 2019-10-21 2023-04-11 Samsung Electronics Co., Ltd. Electronic device including dustproof structure

Also Published As

Publication number Publication date
JPS638535B2 (en) 1988-02-23

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