EP 0053896 A1 19820616 - Light dimmer device.
Title (en)
Light dimmer device.
Title (de)
Helligkeitsregeleinrichtung.
Title (fr)
Régulateur de luminosité.
Publication
Application
Priority
GB 8038172 A 19801128
Abstract (en)
A light dimmer device, preferably in the form of an adaptor for inserting between a light fitting and light bulb, is remotely controlled by means of the conventional light switch. When the light switch is first turned on, a detector circuit 14 responds via a power supply circuit 15 to set a regulator circuit 12 at a first power level, e.g. to provide substantially maximum illumination from the light 11. Should the light switch be then turned off and on again within a predetermined period, the detector circuit 14 alters the regulator circuit 12 setting to a second power level, e.g. to provide a dimmed setting of the light 11.
IPC 1-7
IPC 8 full level
H05B 37/02 (2006.01); H05B 39/08 (2006.01)
CPC (source: EP)
H05B 39/083 (2013.01)
Citation (search report)
- US 3573543 A 19710406 - GRINDSTAFF MELVYN B
- FR 2330244 A2 19770527 - TRANSECO SA [FR]
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
DOCDB simple family (application)
EP 81305579 A 19811125; JP 18992381 A 19811128