IL109426A - Rapid random-access optical scanner and method - Google Patents

Rapid random-access optical scanner and method

Info

Publication number
IL109426A
IL109426A IL10942694A IL10942694A IL109426A IL 109426 A IL109426 A IL 109426A IL 10942694 A IL10942694 A IL 10942694A IL 10942694 A IL10942694 A IL 10942694A IL 109426 A IL109426 A IL 109426A
Authority
IL
Israel
Prior art keywords
optical scanner
access optical
rapid random
rapid
random
Prior art date
Application number
IL10942694A
Other versions
IL109426A0 (en
Original Assignee
Glaser Inbari Isaia
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 Glaser Inbari Isaia filed Critical Glaser Inbari Isaia
Priority to IL10942694A priority Critical patent/IL109426A/en
Publication of IL109426A0 publication Critical patent/IL109426A0/en
Priority to US09/143,242 priority patent/USRE36393E/en
Publication of IL109426A publication Critical patent/IL109426A/en

Links

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
    • G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
    • G11B7/08547—Arrangements for positioning the light beam only without moving the head, e.g. using static electro-optical elements
    • G11B7/08564—Arrangements for positioning the light beam only without moving the head, e.g. using static electro-optical elements using galvanomirrors
    • 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
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1353—Diffractive elements, e.g. holograms or gratings
    • 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
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1372—Lenses
    • G11B7/1374—Objective lenses
    • 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
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1381—Non-lens elements for altering the properties of the beam, e.g. knife edges, slits, filters or stops
    • 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
    • G11B7/0901—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 for track following only
    • G11B7/0903—Multi-beam tracking systems
    • 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
    • G11B7/0908—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 for focusing only
    • G11B7/0909—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 for focusing only by astigmatic methods
IL10942694A 1994-04-25 1994-04-25 Rapid random-access optical scanner and method IL109426A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
IL10942694A IL109426A (en) 1994-04-25 1994-04-25 Rapid random-access optical scanner and method
US09/143,242 USRE36393E (en) 1994-04-25 1998-08-28 Two-dimensional random access scanner for optical disks

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IL10942694A IL109426A (en) 1994-04-25 1994-04-25 Rapid random-access optical scanner and method

Publications (2)

Publication Number Publication Date
IL109426A0 IL109426A0 (en) 1994-07-31
IL109426A true IL109426A (en) 1999-05-09

Family

ID=11066057

Family Applications (1)

Application Number Title Priority Date Filing Date
IL10942694A IL109426A (en) 1994-04-25 1994-04-25 Rapid random-access optical scanner and method

Country Status (2)

Country Link
US (1) USRE36393E (en)
IL (1) IL109426A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6618202B2 (en) * 2001-05-29 2003-09-09 Aurora Systems, Inc. Projection system with an offset lens array to reduce vertical banding
US6801350B2 (en) 2001-10-30 2004-10-05 Mmri Photonics, Ltd. Methods and apparatus for optical disk drives using optical scanning
US7995443B2 (en) * 2007-07-30 2011-08-09 International Business Machines Corporation Apparatus and method to store information in a holographic data storage medium
US7978330B2 (en) * 2008-03-24 2011-07-12 Raytheon Company Detecting a target using an optical augmentation sensor
USD757010S1 (en) * 2015-05-28 2016-05-24 Hewlett-Packard Development Company, L.P. Scanner turntable

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4550249A (en) * 1983-04-21 1985-10-29 At&T Bell Laboratories Optical disc read/write apparatus
US5317551A (en) * 1990-07-16 1994-05-31 Matsushita Electric Industrial Co., Ltd. Optical disk head including a light path having a thickness and width greater than the light beam wavelength by a predetermined amount
US5465238A (en) * 1991-12-30 1995-11-07 Information Optics Corporation Optical random access memory having multiple state data spots for extended storage capacity
US5483511A (en) * 1993-02-17 1996-01-09 Vixel Corporation Multiple beam optical memory system with solid-state lasers

Also Published As

Publication number Publication date
USRE36393E (en) 1999-11-16
IL109426A0 (en) 1994-07-31

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Legal Events

Date Code Title Description
FF Patent granted
FF Patent granted
KB Patent renewed
KB Patent renewed
MM9K Patent not in force due to non-payment of renewal fees