Patent ID: 9185769
Filing Date: 2015-11-10
Classification: F21S,F21Y,H01L,H05B

Abstract:
1. A light source apparatus comprising: a light emitting device array unit in which light emitting device strings connected in parallel are formed by connecting a plurality of light emitting devices in series; a first detection unit connected to an output terminal of the light emitting device array unit and configured to detect whether any one of the light emitting device strings is opened; a driving unit configured to supply driving power to the light emitting device array unit; a second detection unit configured to detect whether an opening or a short-circuit between an input terminal and the output terminal of the light emitting device array unit has occurred; and an interruption unit including a third switching element connected between an input terminal of the driving unit and an external power source, and configured to: connect the external power source applying power to the driving unit to the input terminal of the driving unit by switching on the third switch element, and interrupt power supplied to the driving unit by switching off the third switch element when an opening is detected by the first detection unit, or when an opening or a short-circuit is detected by the second detection unit.