GB1224547A - Switching arrangement for incandescent lamps - Google Patents

Switching arrangement for incandescent lamps

Info

Publication number
GB1224547A
GB1224547A GB26939/68A GB2693968A GB1224547A GB 1224547 A GB1224547 A GB 1224547A GB 26939/68 A GB26939/68 A GB 26939/68A GB 2693968 A GB2693968 A GB 2693968A GB 1224547 A GB1224547 A GB 1224547A
Authority
GB
United Kingdom
Prior art keywords
lamps
switches
lamp
rectifiers
assembly
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
Application number
GB26939/68A
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric 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 International Standard Electric Corp filed Critical International Standard Electric Corp
Publication of GB1224547A publication Critical patent/GB1224547A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/307—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being incandescent filaments
    • 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
    • H05B39/00—Circuit arrangements or apparatus for operating incandescent light sources
    • H05B39/04—Controlling
    • H05B39/06—Switching arrangements, e.g. from series operation to parallel operation
    • 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
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H05B47/155—Coordinated control of two or more light sources

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

1,224,547. Control systems for incandescent lamp arrays. INTERNATIONAL STANDARD ELECTRIC CORP. 6 June, 1968 [13 June, 1967], No. 26939/68. Heading H2H. An arrangement for controlling the brightness of individual lamps 12-22 in a group of incandescent lamps comprises connecting each lamp across a respective crosspoint of a coordinate array of wires, each pair of wires providing a crosspoint which is connected to an alternating current source 6 through a respective pair of switches such as 24, 28; 26, 28 &c.,- each switch being shunted by a rectifier, e.g. 34 or 38; all the rectifiers being poled so that the current flows through each lamp whose associated switches are open during the same half of each cycle of the A.C. source thus dimming the lamps. With all the switches open and the supply 6 connected all the lamps 12-22 are supplied by way of the rectifiers 34-42 whereby the lamps are energized such that each is approximately at half brilliance. Full brilliancy of any lamp is effected by closure of the respective switches e.g. full brilliancy of lamp 12 is obtained by closing switches 24 and 28. The switches can be of any suitable type such as mechanical contactors or thyristors. In a second embodiment two assemblies as shown in Fig. 3 are connected to the A.C. source 6 in parallel, the rectifiers in one assembly being oppositely poled to those in the other assembly. Thus the lamps in each assembly are energized in alternate half-cycles of the supply.
GB26939/68A 1967-06-13 1968-06-06 Switching arrangement for incandescent lamps Expired GB1224547A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR110176A FR1533989A (en) 1967-06-13 1967-06-13 Incandescent lamp contactor device

Publications (1)

Publication Number Publication Date
GB1224547A true GB1224547A (en) 1971-03-10

Family

ID=8632917

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26939/68A Expired GB1224547A (en) 1967-06-13 1968-06-06 Switching arrangement for incandescent lamps

Country Status (5)

Country Link
BE (1) BE716469A (en)
CH (1) CH474936A (en)
DE (1) DE1764489A1 (en)
FR (1) FR1533989A (en)
GB (1) GB1224547A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4496941A (en) * 1982-01-07 1985-01-29 Restbury Limited Switch protection device
GB2201849A (en) * 1987-03-06 1988-09-07 Tom Jou Flicker lamp system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4496941A (en) * 1982-01-07 1985-01-29 Restbury Limited Switch protection device
GB2201849A (en) * 1987-03-06 1988-09-07 Tom Jou Flicker lamp system
GB2201849B (en) * 1987-03-06 1990-12-19 Tom Jou Flicker lamp system

Also Published As

Publication number Publication date
DE1764489A1 (en) 1971-08-05
FR1533989A (en) 1968-07-26
BE716469A (en) 1968-12-13
CH474936A (en) 1969-06-30

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