Patent ID: 7071989

Claim:
A flash device comprising: a plurality of light emitting elements each for emitting a ray of light having a different color; a memory storing data on a plurality of percentages determined respectively for the plurality of light emitting elements; a driver for driving the plurality of light emitting elements with respective series of drive pulses to emit the corresponding different colored rays of light a number of times corresponding to the drive pulses; a controller for controlling the driver to drive the plurality of light emitting elements with the corresponding series of drive pulses such that, for each of the plurality of light emitting elements a percentage of a total light emission timer of a predetermined light emission drive period, during which the light emitting element emits the rays of light conforms to the one of the plurality of percentages stored in the memory that corresponds to the light emitting element; wherein, for each of the plurality of light emitting elements except one of the light emitting elements corresponding to a highest percentage stored in the memory, the controller sets at equal intervals of time moments when the light emitting element starts to be driven to emit each ray of light by the corresponding individual drive pulses during a drive duration of the light emitting element.