GB1205319A - Luminescent materials - Google Patents
Luminescent materialsInfo
- Publication number
- GB1205319A GB1205319A GB50259/68A GB5025968A GB1205319A GB 1205319 A GB1205319 A GB 1205319A GB 50259/68 A GB50259/68 A GB 50259/68A GB 5025968 A GB5025968 A GB 5025968A GB 1205319 A GB1205319 A GB 1205319A
- Authority
- GB
- United Kingdom
- Prior art keywords
- activated
- instanced
- phosphor
- oct
- heated
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/38—Devices for influencing the colour or wavelength of the light
- H01J61/42—Devices for influencing the colour or wavelength of the light by transforming the wavelength of the light by luminescence
- H01J61/44—Devices 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
- C09K11/7728—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals containing europium
- C09K11/77342—Silicates
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Luminescent Compositions (AREA)
Abstract
1,205,319. Luminescent materials and uses thereof. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 23 Oct., 1968 [26 Oct., 1967], No. 50259/68. Heading C4S. A luminescent material activated by divalent Eu is defined by the formula wherein x + y + p + z = 1, one or two of the parameters x, y, z may be zero, and 0À05 # p # 0.003 preferably 0.04 # p # 0.006 (e.g. p = 0À01, 0.02). Specific phosphors instanced are and In preparation, the mix is heated at 1050 C. for 1 hr., cooled, ground and re-heated at 1150 C. for 1 hr., in both instances in a N 2 -H 2 (20 : 1) atmosphere. To facilitate the reaction an excess of SiO 2 may be included and a fluoride of Ca, Ba or Sr employed as flux. Emissions between 440 and 480 nm. are instanced with U.V. (e.g. 2537 ), deep blue and electron excitation. The phosphor may be used in C.R.T.s, LP and HPMV lamps for illumination and photo-chemical processes. In a luminescent screen in a lamp, the phosphor may be mixed with manganese activated magnesium arsenate or calcium halophosphate activated by manganese and antimony.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL6714518A NL6714518A (en) | 1967-10-26 | 1967-10-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1205319A true GB1205319A (en) | 1970-09-16 |
Family
ID=19801558
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB50259/68A Expired GB1205319A (en) | 1967-10-26 | 1968-10-23 | Luminescent materials |
Country Status (7)
Country | Link |
---|---|
JP (1) | JPS4837715B1 (en) |
AT (1) | AT279736B (en) |
BE (1) | BE722851A (en) |
FR (1) | FR1603626A (en) |
GB (1) | GB1205319A (en) |
NL (1) | NL6714518A (en) |
SE (1) | SE332675B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2171112A (en) * | 1985-01-29 | 1986-08-20 | Sony Corp | Blue fluorescent materials |
EP0200279A2 (en) * | 1985-05-01 | 1986-11-05 | North American Philips Corporation | Luminescent alkaline earth metal silicate and low pressure mercury vapour discharge lamp comprising such a silicate |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1997027267A1 (en) * | 1996-01-22 | 1997-07-31 | Kasei Optonix, Ltd. | Photostimulable phosphor |
JP2007246918A (en) * | 2000-09-29 | 2007-09-27 | Sumitomo Chemical Co Ltd | Fluorescent substance for vacuum ultraviolet-excited light emitting element |
WO2006028104A1 (en) * | 2004-09-07 | 2006-03-16 | Sumitomo Chemical Company, Limited | Phosphor, phosphor paste and light-emitting device |
JP2006124644A (en) * | 2004-09-28 | 2006-05-18 | Sumitomo Chemical Co Ltd | Phosphor |
JP5154481B2 (en) * | 2009-03-10 | 2013-02-27 | 宇部マテリアルズ株式会社 | Blue light emitting phosphor |
JP5971620B2 (en) * | 2011-02-28 | 2016-08-17 | 宇部興産株式会社 | Blue light emitting phosphor and light emitting device using the blue light emitting phosphor |
-
1967
- 1967-10-26 NL NL6714518A patent/NL6714518A/xx unknown
-
1968
- 1968-10-23 GB GB50259/68A patent/GB1205319A/en not_active Expired
- 1968-10-23 SE SE14331/68A patent/SE332675B/xx unknown
- 1968-10-23 AT AT1031968A patent/AT279736B/en not_active IP Right Cessation
- 1968-10-24 BE BE722851D patent/BE722851A/xx unknown
- 1968-10-24 FR FR1603626D patent/FR1603626A/fr not_active Expired
- 1968-10-25 JP JP43077411A patent/JPS4837715B1/ja active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2171112A (en) * | 1985-01-29 | 1986-08-20 | Sony Corp | Blue fluorescent materials |
EP0200279A2 (en) * | 1985-05-01 | 1986-11-05 | North American Philips Corporation | Luminescent alkaline earth metal silicate and low pressure mercury vapour discharge lamp comprising such a silicate |
EP0200279A3 (en) * | 1985-05-01 | 1987-06-24 | North American Philips Corporation | Luminescent alkaline earth metal silicate and low pressure mercury vapour discharge lamp comprising such a silicate |
Also Published As
Publication number | Publication date |
---|---|
DE1801486A1 (en) | 1969-05-29 |
JPS4837715B1 (en) | 1973-11-13 |
DE1801486B2 (en) | 1977-06-02 |
BE722851A (en) | 1969-04-24 |
SE332675B (en) | 1971-02-15 |
NL6714518A (en) | 1969-04-29 |
AT279736B (en) | 1970-03-10 |
FR1603626A (en) | 1971-05-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |