Patent ID: 9031109
Filing Date: 2015-05-12
Classification: H01S,H05B

Abstract:
1. A solid state light source having a driver circuit and a light emitting element, wherein the driver circuit is arranged for receiving an AC input and for supplying power with an AC period to the light emitting element, wherein the light emitting element has a maximum efficiency power and a maximum operation power, wherein the driver circuit is arranged for forwarding power from the AC input to the light emitting element while limiting the forwarded power to an upper cut-off value between the maximum efficiency power and maximum operation power, inclusive, such that the solid state light source during light emission can be directly supplied with the AC input directly forwarded by the driver circuit during a part of the AC period, wherein the light emitting element further has a minimum operation power, and wherein the driver circuit is arranged for storing power from the AC input exceeding the upper cut-off value and for supplying stored power to the light emitting element in addition to the forwarded power from the AC input during a period in which the power from the AC input is equal to or below a lower cut-off value.