US3564322A - Cathode-ray tube for flying-spot scanning - Google Patents

Cathode-ray tube for flying-spot scanning Download PDF

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Publication number
US3564322A
US3564322A US723551A US3564322DA US3564322A US 3564322 A US3564322 A US 3564322A US 723551 A US723551 A US 723551A US 3564322D A US3564322D A US 3564322DA US 3564322 A US3564322 A US 3564322A
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US
United States
Prior art keywords
cathode
ray tube
flying
spectrum
phosphor
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.)
Expired - Lifetime
Application number
US723551A
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English (en)
Inventor
George Blasse
Alfred Bril
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US Philips Corp
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US Philips Corp
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 US Philips Corp filed Critical US Philips Corp
Application granted granted Critical
Publication of US3564322A publication Critical patent/US3564322A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
    • H01J29/10—Screens on or from which an image or pattern is formed, picked up, converted or stored
    • H01J29/18—Luminescent screens
    • H01J29/20—Luminescent screens characterised by the luminescent material
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
    • C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
    • C09K11/77—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals
    • C09K11/7766—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals containing two or more rare earth metals
    • C09K11/7774—Aluminates
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps

Definitions

  • Such a system has been used for the transmission not only of information from films o'r transparencies but also of information from transparent 'objects, wh'ich may be disposed under a microscope, or from opaque objects, for example securities, such as checks, or other printed or written documents. With opaque objects the rays reflected by them are projected'onto a photocell.
  • the decay time of the phosphor on the screen of the cathode-ray tube must be shorter than the time in which the electron beam generating the flying spot moves a distance equal to a full diameter on the screen, for at each instant the light produced by that part of the screen which was excited immediately before the respective'instant must be at least sub stantially extinguished. Otherwise the information displayed at this instant would be mixed with information from the parts scanned prior to this instant.
  • the decay time computed according to the above rules must be less than approximately 10- second.
  • the object is scanned with the light generated by the cathoderay tube.
  • the radiation transmitted or reflected by the object is separated into a red, a green and a blue component by means of dichroic mirrors and/or filters. Each of these components falls upon a separate photoelectric cell.
  • the electric signals produced by these photocells are combined and transmitted in the usual manner.
  • the phosphor in the cathode-ray tube by which the flying-spot of illumination is produced to emit radiation in the entire visible part of the spectrum, for the transmission or reflection of a colored object also depends upon the wavelength of the radiation with which it is scanned.
  • H6. 1 shows schematically a cathode-ray tube in accordance with the invention.
  • the cathode-ray tube of claim 1 wherein the luminescent screen includes, in addition to the trivalent cerium activated yttrium aluminate a phosphor having a decay time of less than 10- second and an emission in the blue part of the spectrum.
US723551A 1967-04-29 1968-04-23 Cathode-ray tube for flying-spot scanning Expired - Lifetime US3564322A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL676706095A NL154361B (nl) 1967-04-29 1967-04-29 Kathodestraalbuis voor lichtstipaftasting.

Publications (1)

Publication Number Publication Date
US3564322A true US3564322A (en) 1971-02-16

Family

ID=19800008

Family Applications (1)

Application Number Title Priority Date Filing Date
US723551A Expired - Lifetime US3564322A (en) 1967-04-29 1968-04-23 Cathode-ray tube for flying-spot scanning

Country Status (11)

Country Link
US (1) US3564322A (no)
AT (1) AT280371B (no)
BE (1) BE714420A (no)
CH (1) CH487498A (no)
DK (1) DK119366B (no)
ES (1) ES353255A1 (no)
FR (1) FR1564271A (no)
GB (1) GB1174518A (no)
NL (1) NL154361B (no)
NO (1) NO127323B (no)
SE (1) SE330056B (no)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3943400A (en) * 1971-07-24 1976-03-09 U.S. Philips Corporation Cathode-ray tube provided with a luminescent silicate
US4024070A (en) * 1974-05-24 1977-05-17 U.S. Philips Corporation Method of manufacturing a cerium activated luminescent rare-earth aluminate
US4034257A (en) * 1975-06-05 1977-07-05 General Electric Company Mercury vapor lamp utilizing a combination of phosphor materials
US20060145593A1 (en) * 2003-08-28 2006-07-06 Mitsubishi Chemical Corporation Light-emitting device and phosphor
US20060152135A1 (en) * 2005-01-12 2006-07-13 Samsung Sdi Co., Ltd. Phosphor and plasma display panel using the same
CN101475800B (zh) * 2009-01-23 2012-07-18 罗维鸿 以钆镥铈为基质的荧光粉及使用其的暖白光发光二极管
US8388862B2 (en) 2009-07-28 2013-03-05 Anatoly Vasilyevich Vishnyakov Inorganic luminescent material for solid-state white-light sources
RU2506301C2 (ru) * 2012-04-11 2014-02-10 Анатолий Васильевич Вишняков Люминесцирующий материал для твердотельных источников белого света
US20150225644A1 (en) * 2012-12-06 2015-08-13 Anatoly Vasilyevich Vishnyakov Luminescent material for solid-state sources of white light
RU2582699C1 (ru) * 2015-02-16 2016-04-27 Федеральное государственное автономное образовательное учреждение высшего образования "Новосибирский национальный исследовательский университет" (Новосибирский государственный университет, НГУ) Способ твёрдофазного синтеза люминофоров белого свечения на основе редкоземельных гранатов
US9331253B2 (en) 2014-09-03 2016-05-03 Cree, Inc. Light emitting diode (LED) component comprising a phosphor with improved excitation properties
US9399733B2 (en) 2010-10-22 2016-07-26 Anatoly Vasilyevich Vishnyakov Luminescent material for solid-state sources of white light
US9447319B2 (en) 2012-12-14 2016-09-20 Cree, Inc. Yellow phosphor having an increased activator concentration and a method of making a yellow phosphor
RU2618867C2 (ru) * 2015-10-23 2017-05-11 Федеральное государственное бюджетное образовательное учреждение высшего образования "Национальный исследовательский Мордовский государственный университет им. Н.П. Огарёва" Шихта для получения алюминатных люминофоров с кристаллической структурой граната, активированных церием, и способ их получения

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3699478A (en) * 1969-05-26 1972-10-17 Bell Telephone Labor Inc Display system
US3691482A (en) * 1970-01-19 1972-09-12 Bell Telephone Labor Inc Display system
JPS5918433B2 (ja) * 1975-06-02 1984-04-27 松下電器産業株式会社 螢光体
US4241276A (en) * 1979-06-20 1980-12-23 Gte Products Corporation Warm color arc discharge lamp having improved efficiency
US5076964A (en) * 1990-11-01 1991-12-31 Gte Products Corporation Process for producing cerium activated yttrium gallium aluminate CRT phosphor

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
H. R. Lewis - Paramagnetic Resonance of Ce 3 in Yttrium Aluminum Garnet - Journal of Applied Physics Vol. 37 No. 2 Feb. 1966 pages 739 41 Copy in Pat. Office Search Center *

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3943400A (en) * 1971-07-24 1976-03-09 U.S. Philips Corporation Cathode-ray tube provided with a luminescent silicate
US4024070A (en) * 1974-05-24 1977-05-17 U.S. Philips Corporation Method of manufacturing a cerium activated luminescent rare-earth aluminate
US4034257A (en) * 1975-06-05 1977-07-05 General Electric Company Mercury vapor lamp utilizing a combination of phosphor materials
US20060145593A1 (en) * 2003-08-28 2006-07-06 Mitsubishi Chemical Corporation Light-emitting device and phosphor
US20070222369A1 (en) * 2003-08-28 2007-09-27 Mitsubishi Chemical Corporation Light-emitting device and phosphor
US7332106B2 (en) * 2003-08-28 2008-02-19 Mitsubishi Chemical Corporation Light-emitting device and phosphor
US7704410B2 (en) 2003-08-28 2010-04-27 Mitsubishi Chemical Corporation Light-emitting device and phosphor
US20060152135A1 (en) * 2005-01-12 2006-07-13 Samsung Sdi Co., Ltd. Phosphor and plasma display panel using the same
CN101475800B (zh) * 2009-01-23 2012-07-18 罗维鸿 以钆镥铈为基质的荧光粉及使用其的暖白光发光二极管
US8388862B2 (en) 2009-07-28 2013-03-05 Anatoly Vasilyevich Vishnyakov Inorganic luminescent material for solid-state white-light sources
US9399733B2 (en) 2010-10-22 2016-07-26 Anatoly Vasilyevich Vishnyakov Luminescent material for solid-state sources of white light
RU2506301C2 (ru) * 2012-04-11 2014-02-10 Анатолий Васильевич Вишняков Люминесцирующий материал для твердотельных источников белого света
US20150225644A1 (en) * 2012-12-06 2015-08-13 Anatoly Vasilyevich Vishnyakov Luminescent material for solid-state sources of white light
US9447319B2 (en) 2012-12-14 2016-09-20 Cree, Inc. Yellow phosphor having an increased activator concentration and a method of making a yellow phosphor
US9331253B2 (en) 2014-09-03 2016-05-03 Cree, Inc. Light emitting diode (LED) component comprising a phosphor with improved excitation properties
RU2582699C1 (ru) * 2015-02-16 2016-04-27 Федеральное государственное автономное образовательное учреждение высшего образования "Новосибирский национальный исследовательский университет" (Новосибирский государственный университет, НГУ) Способ твёрдофазного синтеза люминофоров белого свечения на основе редкоземельных гранатов
RU2618867C2 (ru) * 2015-10-23 2017-05-11 Федеральное государственное бюджетное образовательное учреждение высшего образования "Национальный исследовательский Мордовский государственный университет им. Н.П. Огарёва" Шихта для получения алюминатных люминофоров с кристаллической структурой граната, активированных церием, и способ их получения

Also Published As

Publication number Publication date
DE1764218A1 (de) 1971-07-01
NL154361B (nl) 1977-08-15
NO127323B (no) 1973-06-04
CH487498A (de) 1970-03-15
DK119366B (da) 1970-12-21
FR1564271A (no) 1969-04-18
NL6706095A (no) 1968-10-30
AT280371B (de) 1970-04-10
DE1764218B2 (de) 1976-07-15
GB1174518A (en) 1969-12-17
ES353255A1 (es) 1969-10-01
SE330056B (no) 1970-11-02
BE714420A (no) 1968-10-29

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