EP0494310A4 - Variable color lamp - Google Patents

Variable color lamp

Info

Publication number
EP0494310A4
EP0494310A4 EP19910913076 EP91913076A EP0494310A4 EP 0494310 A4 EP0494310 A4 EP 0494310A4 EP 19910913076 EP19910913076 EP 19910913076 EP 91913076 A EP91913076 A EP 91913076A EP 0494310 A4 EP0494310 A4 EP 0494310A4
Authority
EP
European Patent Office
Prior art keywords
variable color
color lamp
lamp
variable
color
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.)
Withdrawn
Application number
EP19910913076
Other versions
EP0494310A1 (en
Inventor
Koichi Toto Ltd. Hayashi
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.)
Toto Ltd
Original Assignee
Toto 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 Toto Ltd filed Critical Toto Ltd
Publication of EP0494310A1 publication Critical patent/EP0494310A1/en
Publication of EP0494310A4 publication Critical patent/EP0494310A4/en
Withdrawn legal-status Critical Current

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
    • H01J61/30—Vessels; Containers
    • H01J61/302—Vessels; Containers characterised by the material of the vessel
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/92—Lamps with more than one main discharge path
    • H01J61/94—Paths producing light of different wavelengths, e.g. for simulating daylight
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/12—Selection of substances for gas fillings; Specified operating pressure or temperature
    • H01J61/125—Selection of substances for gas fillings; Specified operating pressure or temperature having an halogenide as principal component
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/36—Controlling
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/36—Controlling
    • H05B41/38—Controlling the intensity of light
    • H05B41/39—Controlling the intensity of light continuously
    • H05B41/392—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor
    • H05B41/3921—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations
EP19910913076 1990-07-18 1991-07-18 Variable color lamp Withdrawn EP0494310A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP191815/90 1990-07-18
JP19181590 1990-07-18

Publications (2)

Publication Number Publication Date
EP0494310A1 EP0494310A1 (en) 1992-07-15
EP0494310A4 true EP0494310A4 (en) 1992-11-19

Family

ID=16280987

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910913076 Withdrawn EP0494310A4 (en) 1990-07-18 1991-07-18 Variable color lamp

Country Status (4)

Country Link
EP (1) EP0494310A4 (en)
KR (1) KR920702542A (en)
CA (1) CA2066604A1 (en)
WO (1) WO1992002035A1 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2578455Y2 (en) * 1992-06-15 1998-08-13 松下電工株式会社 Variable color temperature lighting system
JPH0676961A (en) * 1992-08-26 1994-03-18 Matsushita Electric Works Ltd Variable color lighting system
DE4312744A1 (en) * 1993-04-20 1994-12-22 Kuemmerling Andreas Extruded multi-chamber glass profiles
EP1610593B2 (en) 1999-11-18 2020-02-19 Signify North America Corporation Generation of white light with Light Emitting Diodes having different spectrum
DE10145648B4 (en) * 2001-09-15 2006-08-24 Arccure Technologies Gmbh Irradiation device with variable spectrum
CN100382228C (en) * 2003-09-22 2008-04-16 松下电器产业株式会社 Metal halide lamp
DE102004051395A1 (en) 2004-10-21 2006-04-27 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Highly efficient, stable oxynitride phosphor
CN1809242B (en) * 2005-01-19 2011-01-12 杨东亮 Digital synthesis method and control system for color light source
US7520633B2 (en) 2005-04-01 2009-04-21 Cepia, Llc Lighting and display apparatus
US7825822B2 (en) 2005-04-01 2010-11-02 Cepia, Llc System and method for extracting and conveying modulated AC signal information
EP1905062A2 (en) * 2005-06-29 2008-04-02 Philips Intellectual Property & Standards GmbH Low-pressure discharge lamp comprising molecular radiator and additive
US8282986B2 (en) 2006-05-18 2012-10-09 Osram Sylvania, Inc. Method of applying phosphor coatings
ES2289957B1 (en) * 2007-02-07 2008-12-01 Universidad Complutense De Madrid LIGHTING SOURCE WITH REDUCED ISSUANCE OF SHORT WAVE LENGTHS FOR EYE PROTECTION.

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE433124A (en) *
FR752589A (en) * 1932-04-24 1933-09-26 Philips Nv Arrangement of multicolored light tubes
US1932509A (en) * 1930-03-01 1933-10-31 Connecticut Telephone & Elec Gas lamp
FR2353015A1 (en) * 1976-05-25 1977-12-23 Mitsubishi Electric Corp LIGHTING PROCESS FOR PRODUCING COLORED SHADOWS

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5318876U (en) * 1976-07-28 1978-02-17
JPS54154413A (en) * 1978-05-08 1979-12-05 Ngk Spark Plug Co Alphaaalumina sintered body production
JPS5857066U (en) * 1981-10-14 1983-04-18 株式会社日立製作所 Indicator light that can emit multicolor light
JPS59154739A (en) * 1983-02-21 1984-09-03 Toshiba Corp Low pressure mercury vapor discharge lamp for indicator element
JPS60180964A (en) * 1984-02-24 1985-09-14 株式会社トクヤマ Manufacture of aluminum nitride sintered body
JPS6122553A (en) * 1984-03-24 1986-01-31 Matsushita Electric Works Ltd Flat type fluorescent lamp
JPS6149367A (en) * 1984-08-17 1986-03-11 Matsushita Electric Works Ltd Variable color discahrge lamp
NL8502509A (en) * 1985-09-13 1987-04-01 Philips Nv HIGH PRESSURE MERCURY DISCHARGE LAMP.
JPS62188158A (en) * 1986-02-14 1987-08-17 Matsushita Electric Works Ltd Fluorescent lamp
JPS63242964A (en) * 1987-03-31 1988-10-07 日本碍子株式会社 Alumina ceramics and manufacture
JPH01155793A (en) * 1987-12-11 1989-06-19 Seiko Epson Corp Projection type color display device
JPH02132750A (en) * 1988-11-11 1990-05-22 Kyocera Corp High pressure discharge lamp
JPH02255563A (en) * 1989-03-30 1990-10-16 Toshiba Tungaloy Co Ltd Alumina sintered body for tool

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE433124A (en) *
US1932509A (en) * 1930-03-01 1933-10-31 Connecticut Telephone & Elec Gas lamp
FR752589A (en) * 1932-04-24 1933-09-26 Philips Nv Arrangement of multicolored light tubes
FR2353015A1 (en) * 1976-05-25 1977-12-23 Mitsubishi Electric Corp LIGHTING PROCESS FOR PRODUCING COLORED SHADOWS

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
JOURNAL OF THE ILLUMINATING ENGINEERING SOCIETY. vol. 18, no. 2, 1989, NEW YORK US pages 23 - 31; TOHO ET AL.: 'High Brightness, Color Variable Lighting Element for Large Outdoor Displays' *
PATENT ABSTRACTS OF JAPAN vol. 13, no. 421 (E-822)19 September 1989 & JP-A-1 155 793 ( SEIKO EPSON CORP ) 19 June 1989 *
PATENT ABSTRACTS OF JAPAN vol. 15, no. 1 (C-793)7 January 1991 & JP-A-2 255 563 ( TOSHIBA TUNGALOY CO LTD ) 16 October 1990 *
See also references of WO9202035A1 *
WORLD PATENTS INDEX LATEST Section Ch, Week 8543, 1985 Derwent Publications Ltd., London, GB; Class E, AN 85-267393 & JP-A-60 180 964 (TOKUYAMA SODA KK) 14 September 1985 *

Also Published As

Publication number Publication date
WO1992002035A1 (en) 1992-02-06
CA2066604A1 (en) 1992-01-19
EP0494310A1 (en) 1992-07-15
KR920702542A (en) 1992-09-04

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Legal Events

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18D Application deemed to be withdrawn

Effective date: 19970201