GB1224547A - Switching arrangement for incandescent lamps - Google Patents
Switching arrangement for incandescent lampsInfo
- 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
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.
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)
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 |
-
1967
- 1967-06-13 FR FR110176A patent/FR1533989A/en not_active Expired
-
1968
- 1968-06-06 GB GB26939/68A patent/GB1224547A/en not_active Expired
- 1968-06-07 CH CH849568A patent/CH474936A/en not_active IP Right Cessation
- 1968-06-13 BE BE716469D patent/BE716469A/xx unknown
- 1968-06-14 DE DE19681764489 patent/DE1764489A1/en active Pending
Cited By (3)
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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