JPS643946A - Cathode-ray tube device for green luminescence projection - Google Patents

Cathode-ray tube device for green luminescence projection

Info

Publication number
JPS643946A
JPS643946A JP62157932A JP15793287A JPS643946A JP S643946 A JPS643946 A JP S643946A JP 62157932 A JP62157932 A JP 62157932A JP 15793287 A JP15793287 A JP 15793287A JP S643946 A JPS643946 A JP S643946A
Authority
JP
Japan
Prior art keywords
cathode
ray tube
color
terbium
projection
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.)
Pending
Application number
JP62157932A
Other languages
Japanese (ja)
Inventor
Naohisa Matsuda
Nobuyuki Tsuda
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.)
Toshiba Corp
Original Assignee
Toshiba 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 Toshiba Corp filed Critical Toshiba Corp
Priority to JP62157932A priority Critical patent/JPS643946A/en
Publication of JPS643946A publication Critical patent/JPS643946A/en
Pending legal-status Critical Current

Links

Landscapes

  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
  • Video Image Reproduction Devices For Color Tv Systems (AREA)

Abstract

PURPOSE:To reduce the color aberration, improve the color purity, and expand the color reproduction area by arranging a filter made of glass containing praseodymium ions in front a cathode-ray tube using a terbium-activated green luminescent phosphor for a fluorescent screen. CONSTITUTION:A filter 3 made of glass containing praseodymium ions (Pr<2+>) is arranged in the green light path 5 between a cathode-ray tube 1G with a fluorescent screen 2G made of a terbium-activated phosphor and an image firming screen 6. The unnecessary auxiliary luminescence of the green luminescence of the terbium-activated phosphor at 480-500nm and 580-600nm can be suppressed by the absorption of Pr3<+>. The color purity is thereby improved, the color reproduction area for a color cathode-ray tube projector is expanded, and the color aberration can be reduced.
JP62157932A 1987-06-26 1987-06-26 Cathode-ray tube device for green luminescence projection Pending JPS643946A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62157932A JPS643946A (en) 1987-06-26 1987-06-26 Cathode-ray tube device for green luminescence projection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62157932A JPS643946A (en) 1987-06-26 1987-06-26 Cathode-ray tube device for green luminescence projection

Publications (1)

Publication Number Publication Date
JPS643946A true JPS643946A (en) 1989-01-09

Family

ID=15660627

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62157932A Pending JPS643946A (en) 1987-06-26 1987-06-26 Cathode-ray tube device for green luminescence projection

Country Status (1)

Country Link
JP (1) JPS643946A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02290392A (en) * 1989-02-20 1990-11-30 Mitsubishi Electric Corp Projecting type television device
WO1997040631A1 (en) * 1996-04-25 1997-10-30 Kureha Kagaku Kogyo Kabushiki Kaisha Color image pickup device
KR20010020044A (en) * 1999-08-31 2001-03-15 구자홍 Projection television
WO2003090246A3 (en) * 2002-04-19 2004-08-19 Philips Intellectual Property Plasma display panel comprising a terbium(iii)-activated fluorescent substance

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02290392A (en) * 1989-02-20 1990-11-30 Mitsubishi Electric Corp Projecting type television device
WO1997040631A1 (en) * 1996-04-25 1997-10-30 Kureha Kagaku Kogyo Kabushiki Kaisha Color image pickup device
KR20010020044A (en) * 1999-08-31 2001-03-15 구자홍 Projection television
WO2003090246A3 (en) * 2002-04-19 2004-08-19 Philips Intellectual Property Plasma display panel comprising a terbium(iii)-activated fluorescent substance
JP2006509328A (en) * 2002-04-19 2006-03-16 コーニンクレッカ　フィリップス　エレクトロニクス　エヌ　ヴィ Plasma display panel having terbium (III) activated phosphor material

Similar Documents

Publication Publication Date Title
GB1154500A (en) Spectral Filter
EP0241087A3 (en) Projection television system
JPS56168351A (en) Color cathode-ray tube
JPS643946A (en) Cathode-ray tube device for green luminescence projection
JPS51149772A (en) Low speed electron beam excited fluorescent display unit
JPS528992A (en) Fluorescent substance
ES8600565A1 (en) Image reproduction tubes.
JPS57134848A (en) Cathode-ray tube
GB2092368A (en) Cathode ray tube for a light source
JPS57126050A (en) Panel glass for color cathode-ray tube
JPS5219964A (en) Blue light emitting, low speed electron ray exciting fluorescent displ ay tube
JPS5376987A (en) Blue luminous fluorescent substance and color braun tube
JPS5588249A (en) Fluorescent screen of electron tube
JPS57143389A (en) Green light emitting fluorescent material
JPS528993A (en) Fluorescent substance
JPS5716414A (en) Plastic lens apparatus
JPS5311568A (en) Color picture tube
JPS5210874A (en) Blue luminous fluorescent display tube excited by electron beam of low velocity
JPS5263060A (en) Color picture tube
JPS57185656A (en) Standard-color cathode-ray tube
JPS57152641A (en) Preparation of fluorescent screen of color picture tube
CA2027242A1 (en) Projection television apparatus for reducing red-emphasized peripheral screen portions
JPS57145252A (en) High resolution color image tube
JPS5578444A (en) Projecting type television device
JPS5210877A (en) Red luminous fluorescent display tube excited by electron beam of low velocity