JPS57133182A - Fluorescent substance - Google Patents

Fluorescent substance

Info

Publication number
JPS57133182A
JPS57133182A JP1807881A JP1807881A JPS57133182A JP S57133182 A JPS57133182 A JP S57133182A JP 1807881 A JP1807881 A JP 1807881A JP 1807881 A JP1807881 A JP 1807881A JP S57133182 A JPS57133182 A JP S57133182A
Authority
JP
Japan
Prior art keywords
fluorescent substance
fluorescent
lithium
alkali metal
terbium
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
JP1807881A
Other languages
Japanese (ja)
Inventor
Kenji Terajima
Masao Asada
Satoshi Sugano
Toshio Nishimura
Yoshio Kimura
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
Tokyo Shibaura Electric Co Ltd
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, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP1807881A priority Critical patent/JPS57133182A/en
Publication of JPS57133182A publication Critical patent/JPS57133182A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: A fluorescent substance that is prepared by adding a specific amount of an alkali metal to a fluorescent substance of rare earth orthophosphate activated with cerium and terbium, thus showing remarkaly increased luminous efficiency and reduced deterioration at the baking stage in the production of fluorescent tubes.
CONSTITUTION: A novel fluorescent substance that emits green light with ultraviolet rays is obtained by adding an alkali metal such as lithium or sodium to a fluorescent substance of rare earth orthophosphate activated with cerium and terbium by 6×10-1W1×10-3 atom per mole of the fluorescent substance.
EFFECT: Even when lithium is used as the alkali metal, the line spectrum characterized by lithium is not observed with in the above concentration range.
USE: The resultant composition is suitably used for fluorescent lamps of high efficiency and color redering properties, e.g., fluorescent lamps for lighting using three primary colors.
COPYRIGHT: (C)1982,JPO&Japio
JP1807881A 1981-02-12 1981-02-12 Fluorescent substance Pending JPS57133182A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1807881A JPS57133182A (en) 1981-02-12 1981-02-12 Fluorescent substance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1807881A JPS57133182A (en) 1981-02-12 1981-02-12 Fluorescent substance

Publications (1)

Publication Number Publication Date
JPS57133182A true JPS57133182A (en) 1982-08-17

Family

ID=11961611

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1807881A Pending JPS57133182A (en) 1981-02-12 1981-02-12 Fluorescent substance

Country Status (1)

Country Link
JP (1) JPS57133182A (en)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5920378A (en) * 1982-07-26 1984-02-02 Mitsubishi Electric Corp Fluophor and its use in low-pressure mercury vapor luminescent lamp
US5091110A (en) * 1990-05-14 1992-02-25 Gte Products Corporation Method of making lanthanum cerium terbium phosphate phosphor
US5106532A (en) * 1990-05-14 1992-04-21 Gte Products Corporation Method of making lanthanum cerium terbium phosphate phosphor
US5116532A (en) * 1990-05-14 1992-05-26 Gte Products Corporation Method of making lanthanum cerium terbium phosphate phosphor
US5132042A (en) * 1990-05-14 1992-07-21 Gte Products Corporation Method of making lanthanum cerium terbium phosphate phosphor with improved brightness
FR2679242A1 (en) * 1991-07-19 1993-01-22 Rhone Poulenc Chimie MIXED PHOSPHATE OF LANTHANE, TERBIUM AND CERIUM, PROCESS FOR THE PRODUCTION THEREOF FROM INSOLUBLE SALTS FROM RARE EARTHS
US5562889A (en) * 1991-02-04 1996-10-08 Rhone-Poulenc Chimie Cerium/lanthanum/terbium mixed phosphates
US20110272634A1 (en) * 2008-11-20 2011-11-10 Rhodia Operations Cerium and/or terbium phosphate optionally with lanthanum, phosphor resulting from said phosphate and methods for making same
US20110272632A1 (en) * 2008-11-20 2011-11-10 Rhodia Operations Cerium and/or terbium phosphate optionally with lanthanum, phosphor resulting from said phosphate and methods for preparing same
US20110272635A1 (en) * 2008-11-20 2011-11-10 Rhodia Operations Cerium and/or terbium phosphate, optionally with lanthanum, phosphor resulting from said phosphate and methods for preparing same
US20110272633A1 (en) * 2008-11-20 2011-11-10 Rhodia Operations Cerium and/or terbium phosphate optionally with lanthanum, phosphor resulting from said phosphate and methods for preparing same
US20120049117A1 (en) * 2009-03-24 2012-03-01 Buissette Valerie Composition containing a core/shell cerium and/or terbium phosphate, phosphor from said composition, and methods for preparing same
US20120241672A1 (en) * 2009-07-29 2012-09-27 Rhodia Operations Composition comprising a cerium and/or terbium phosphate and sodium, of core/shell type, phosphor resulting from this composition and methods for preparing same
US9796924B2 (en) 2011-08-31 2017-10-24 Rhodia Operations Phosphor based on a lanthanum cerium terbium phosphate with stabilized brightness, preparation process and use in a luminescent device

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5920378A (en) * 1982-07-26 1984-02-02 Mitsubishi Electric Corp Fluophor and its use in low-pressure mercury vapor luminescent lamp
JPH0119720B2 (en) * 1982-07-26 1989-04-12 Mitsubishi Electric Corp
US5091110A (en) * 1990-05-14 1992-02-25 Gte Products Corporation Method of making lanthanum cerium terbium phosphate phosphor
US5106532A (en) * 1990-05-14 1992-04-21 Gte Products Corporation Method of making lanthanum cerium terbium phosphate phosphor
US5116532A (en) * 1990-05-14 1992-05-26 Gte Products Corporation Method of making lanthanum cerium terbium phosphate phosphor
US5132042A (en) * 1990-05-14 1992-07-21 Gte Products Corporation Method of making lanthanum cerium terbium phosphate phosphor with improved brightness
US5562889A (en) * 1991-02-04 1996-10-08 Rhone-Poulenc Chimie Cerium/lanthanum/terbium mixed phosphates
JPH05254812A (en) * 1991-07-19 1993-10-05 Rhone Poulenc Chim Cerium/lanthanum/terbium phosphate, production of the phosphate from insoluble rare earth salts
US5314641A (en) * 1991-07-19 1994-05-24 Rhone-Poulenc Chimie Production of crystallites of cerium/lanthanum/terbium phosphates from insoluble rare earth salts
JP2517515B2 (en) * 1991-07-19 1996-07-24 ローヌ−プーラン・シミ Cerium-lanthanum-terbium phosphate and a method for producing the phosphate from an insoluble rare earth element salt
FR2679242A1 (en) * 1991-07-19 1993-01-22 Rhone Poulenc Chimie MIXED PHOSPHATE OF LANTHANE, TERBIUM AND CERIUM, PROCESS FOR THE PRODUCTION THEREOF FROM INSOLUBLE SALTS FROM RARE EARTHS
US5580490A (en) * 1991-07-19 1996-12-03 Rhone-Poulenc Chimie Crystallites of cerium/lanthanum/terbium phosphates from insoluble rare earth salts
US20110272633A1 (en) * 2008-11-20 2011-11-10 Rhodia Operations Cerium and/or terbium phosphate optionally with lanthanum, phosphor resulting from said phosphate and methods for preparing same
US20110272632A1 (en) * 2008-11-20 2011-11-10 Rhodia Operations Cerium and/or terbium phosphate optionally with lanthanum, phosphor resulting from said phosphate and methods for preparing same
US20110272635A1 (en) * 2008-11-20 2011-11-10 Rhodia Operations Cerium and/or terbium phosphate, optionally with lanthanum, phosphor resulting from said phosphate and methods for preparing same
US20110272634A1 (en) * 2008-11-20 2011-11-10 Rhodia Operations Cerium and/or terbium phosphate optionally with lanthanum, phosphor resulting from said phosphate and methods for making same
JP2012509378A (en) * 2008-11-20 2012-04-19 ロデイア・オペラシヨン Cerium phosphate and / or terbium phosphate, optionally with lanthanum, phosphor resulting from said phosphate, and process for producing said phosphor
JP2012509379A (en) * 2008-11-20 2012-04-19 ロデイア・オペラシヨン Cerium phosphate and / or terbium phosphate, optionally with lanthanum, phosphor resulting from said phosphate, and method of making the phosphor
JP2012509241A (en) * 2008-11-20 2012-04-19 ロデイア・オペラシヨン Cerium phosphate and / or terbium phosphate, optionally with lanthanum, phosphor resulting from said phosphate, and method of making the phosphor
JP2012509240A (en) * 2008-11-20 2012-04-19 ロデイア・オペラシヨン Cerium phosphate and / or terbium optionally containing lanthanum, phosphor obtained from said phosphate, and method for preparing the same
US20120049117A1 (en) * 2009-03-24 2012-03-01 Buissette Valerie Composition containing a core/shell cerium and/or terbium phosphate, phosphor from said composition, and methods for preparing same
US20120241672A1 (en) * 2009-07-29 2012-09-27 Rhodia Operations Composition comprising a cerium and/or terbium phosphate and sodium, of core/shell type, phosphor resulting from this composition and methods for preparing same
US9796924B2 (en) 2011-08-31 2017-10-24 Rhodia Operations Phosphor based on a lanthanum cerium terbium phosphate with stabilized brightness, preparation process and use in a luminescent device

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