NL190677C - Reading head. - Google Patents

Reading head.

Info

Publication number: NL190677C
Authority: NL; Netherlands
Prior art keywords: reading head; reading; head
Prior art date: 1975-10-08

Application number

NL8800443A

Other languages

Dutch (nl)

Other versions

NL8800443A (en

NL190677B (en

Original Assignee

Olympus Optical Co

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.)

1975-10-08

Filing date

1988-02-22

Publication date

1994-06-16

1975-10-08 Priority claimed from JP50120765A external-priority patent/JPS5946053B2/en

1975-10-31 Priority claimed from JP50130527A external-priority patent/JPS5811691B2/en

1975-10-31 Priority claimed from JP50130528A external-priority patent/JPS5811692B2/en

1976-10-07 Priority claimed from NLAANVRAGE7611125,A external-priority patent/NL184030C/en

1988-02-22 Application filed by Olympus Optical Co filed Critical Olympus Optical Co

1988-02-22 Priority to NL8800443A priority Critical patent/NL190677C/en

1988-06-01 Publication of NL8800443A publication Critical patent/NL8800443A/en

1994-01-17 Publication of NL190677B publication Critical patent/NL190677B/en

1994-06-16 Application granted granted Critical

1994-06-16 Publication of NL190677C publication Critical patent/NL190677C/en

Classifications

- 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
- G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B7/0925—Electromechanical actuators for lens positioning
- G11B7/0932—Details of sprung supports

NL8800443A 1975-10-08 1988-02-22 Reading head. NL190677C (en)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
NL8800443A NL190677C (en)	1975-10-08	1988-02-22	Reading head.

Applications Claiming Priority (10)

Application Number	Priority Date	Filing Date	Title
JP12076575		1975-10-08
JP50120765A JPS5946053B2 (en)	1975-10-08	1975-10-08	Information detection head in information reading device
JP50130527A JPS5811691B2 (en)	1975-10-31	1975-10-31	The current state of affairs
JP13052775		1975-10-31
JP50130528A JPS5811692B2 (en)	1975-10-31	1975-10-31	The current state of affairs
JP13052875		1975-10-31
NLAANVRAGE7611125,A NL184030C (en)	1975-10-08	1976-10-07	READING HEAD FOR READING INFORMATION RECORDED ON A REGISTRATION HOLDER.
NL7611125		1976-10-07
NL8800443		1988-02-22
NL8800443A NL190677C (en)	1975-10-08	1988-02-22	Reading head.

Publications (3)

Publication Number	Publication Date
NL8800443A NL8800443A (en)	1988-06-01
NL190677B NL190677B (en)	1994-01-17
NL190677C true NL190677C (en)	1994-06-16

Family

ID=27470720

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NL8800443A NL190677C (en)	1975-10-08	1988-02-22	Reading head.

Country Status (1)

Country	Link
NL (1)	NL190677C (en)

1988
- 1988-02-22 NL NL8800443A patent/NL190677C/en not_active IP Right Cessation

Also Published As

Publication number	Publication date
NL8800443A (en)	1988-06-01
NL190677B (en)	1994-01-17

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Legal Events

Date	Code	Title	Description
1988-06-01	A1A	A request for search or an international-type search has been filed
1988-07-01	BB	A search report has been drawn up
1988-11-01	BC	A request for examination has been filed
1996-12-02	V4	Lapsed because of reaching the maximum lifetime of a patent	Free format text: 961007