FR2261588A1 - - Google Patents

Info

Publication number
FR2261588A1
FR2261588A1 FR7504822A FR7504822A FR2261588A1 FR 2261588 A1 FR2261588 A1 FR 2261588A1 FR 7504822 A FR7504822 A FR 7504822A FR 7504822 A FR7504822 A FR 7504822A FR 2261588 A1 FR2261588 A1 FR 2261588A1
Authority
FR
France
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.)
Withdrawn
Application number
FR7504822A
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of FR2261588A1 publication Critical patent/FR2261588A1/fr
Withdrawn legal-status Critical Current

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
    • G11B7/08—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
    • 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
FR7504822A 1974-02-15 1975-02-17 Withdrawn FR2261588A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7402169A NL7402169A (nl) 1974-02-15 1974-02-15 Inrichting voor het uitlezen van een registra- tiedrager waarop informatie is aangebracht in een optisch uitleesbare struktuur.

Publications (1)

Publication Number Publication Date
FR2261588A1 true FR2261588A1 (fr) 1975-09-12

Family

ID=19820770

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7504822A Withdrawn FR2261588A1 (fr) 1974-02-15 1975-02-17

Country Status (16)

Country Link
US (1) US3978278A (fr)
JP (2) JPS5526530B2 (fr)
AT (1) AT339391B (fr)
BE (1) BE825588A (fr)
CA (1) CA1047643A (fr)
CH (1) CH584429A5 (fr)
DE (1) DE2504229A1 (fr)
DK (1) DK138866B (fr)
ES (1) ES434685A1 (fr)
FR (1) FR2261588A1 (fr)
GB (1) GB1502630A (fr)
IT (1) IT1031693B (fr)
NL (1) NL7402169A (fr)
NO (1) NO750457L (fr)
SE (2) SE404448B (fr)
ZA (1) ZA75375B (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4310919A (en) * 1979-01-15 1982-01-12 Discovision Associates Optical video disc structure
JPS5724033A (en) * 1980-07-18 1982-02-08 Sharp Corp Pickup device
FR2497378B1 (fr) * 1980-12-29 1985-06-28 Thomson Csf Dispositif compensateur de desequilibre d'un miroir de renvoi appartenant a un systeme optique d'eclairement d'un support d'information
NL8101932A (nl) * 1981-04-21 1982-11-16 Philips Nv Inrichting voor het inschrijven en uitlezen van informatiesporen in een optische registratiedrager.
NL8400674A (nl) * 1984-03-02 1985-10-01 Philips Nv Inrichting voor het inschrijven en/of uitlezen van informatie in een spoor van een reflekterende registratiedrager, met een fokusregeling met verminderde spot offsetgevoeligheid.
JPH0693044B2 (ja) * 1985-03-22 1994-11-16 株式会社日立製作所 プリズム光学系及びそれを用いた情報装置
JP2691318B2 (ja) * 1990-09-26 1997-12-17 株式会社日立製作所 光ディスク装置
JP2542148Y2 (ja) * 1990-12-17 1997-07-23 旭光学工業株式会社 ガルバノミラー装置
FR2769688B1 (fr) * 1997-10-14 2000-03-10 Valeo Vision Projecteur elliptique a coupure attenuee
CN108761750B (zh) * 2018-08-20 2023-07-21 中国科学院上海技术物理研究所 一种搜索与跟踪一体化相机
CN114979442B (zh) * 2022-05-25 2023-10-31 西南科技大学 一种多路图像采集装置及其控制方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1243509B (de) * 1960-12-06 1967-06-29 Zeiss Carl Fa Mischbild-Entfernungsmesser, insbesondere fuer Spiegelreflex-Kameras mit in der Sucherbildebene angeordneten Prismen aus doppelbrechendem Material
US3224330A (en) * 1961-12-22 1965-12-21 Bell Telephone Labor Inc Optical reflecting system for redirecting energy
US3381086A (en) * 1962-08-16 1968-04-30 Minnesota Mining & Mfg Reproduction of television signals from photographic disc recordings
US3253525A (en) * 1964-01-03 1966-05-31 Gen Precision Inc Variable optical wedge
US3530258A (en) * 1968-06-28 1970-09-22 Mca Technology Inc Video signal transducer having servo controlled flexible fiber optic track centering

Also Published As

Publication number Publication date
IT1031693B (it) 1979-05-10
DK138866B (da) 1978-11-06
SE7711746L (sv) 1977-10-19
BE825588A (fr) 1975-08-14
AU7819675A (en) 1976-08-19
DK51475A (fr) 1975-10-13
ATA104175A (de) 1977-02-15
JPS5526530B2 (fr) 1980-07-14
CA1047643A (fr) 1979-01-30
JPS50119662A (fr) 1975-09-19
DE2504229A1 (de) 1975-08-21
CH584429A5 (fr) 1977-01-31
US3978278A (en) 1976-08-31
DK138866C (fr) 1979-04-23
ES434685A1 (es) 1977-02-01
ZA75375B (en) 1976-08-25
NO750457L (fr) 1975-08-18
SE404448B (sv) 1978-10-02
GB1502630A (en) 1978-03-01
SE7501524L (fr) 1975-08-18
AT339391B (de) 1977-10-10
JPS5570944A (en) 1980-05-28
NL7402169A (nl) 1975-08-19

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Legal Events

Date Code Title Description
ST Notification of lapse