Global Patent Index - EP 2728972 A1

EP 2728972 A1 20140507 - Controlling operation of light sources

Title (en)

Controlling operation of light sources

Title (de)

Steuerung des Betriebs von Lichtquellen

Title (fr)

Commande du fonctionnement de sources de lumière

Publication

EP 2728972 A1 20140507 (EN)

Application

EP 12190767 A 20121031

Priority

EP 12190767 A 20121031

Abstract (en)

An approach for controlling operation of a first light source (240a) of a first color and a second light source (240b) of a second color is provided, the approach comprising receiving an input control signal having a user-controllable duration, switching, in response to a single input control signal having the overall duration not exceeding a first predetermined threshold, the first and second light sources (240a, 240b) on or off, and changing characteristics of light provided by the first and second light sources (240a, 240b) in response to the duration of an input control signal exceeding a second predetermined threshold that is no smaller than the first predetermined threshold, the change in characteristics being dependent on duration of the input control signal and the change comprising adjustment of the ratio between the light intensities of the first light source (240a) and the second light source (240b).

IPC 8 full level

H05B 37/02 (2006.01); H05B 44/00 (2022.01)

CPC (source: EP US)

H05B 45/20 (2020.01 - EP US); H05B 47/10 (2020.01 - EP US); H05B 47/185 (2020.01 - EP US); H05B 47/165 (2020.01 - EP US)

Citation (search report)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

EP 2728972 A1 20140507; EP 2728972 B1 20150826; CN 103796378 A 20140514; CN 103796378 B 20190212; EA 030680 B1 20180928; EA 201391417 A1 20140730

DOCDB simple family (application)

EP 12190767 A 20121031; CN 201310530672 A 20131031; EA 201391417 A 20131029