Patent ID: 8792068
Filing Date: 2014-07-29
Classification: G02F,H05B

Abstract:
1. A lighting device at least comprising: a plurality of light emitting elements that emit light by a forward direction current flowing from a first terminal to a second terminal; a direct-current power supply; and an anode wiring and a cathode wiring for supplying electrical power to the plurality of light emitting elements from the direct-current power supply; the lighting device having a plurality of light emitting units having: a first light emitting element group containing the plurality of light emitting elements in which the first terminal is connected to a first anode wiring branched from the anode wiring; a second light emitting element group containing the plurality of light emitting elements in which the first terminal is connected to a second anode wiring branched from the anode wiring; a common cathode wiring branched from the cathode wiring that is to be connected in common to the first light emitting element group and the second terminal of the plurality of light emitting elements in the second light emitting element group, and at least one of the plurality of light emitting elements being disposed such that the second terminal of the at least one of the plurality of light emitting elements faces substantially towards the second terminal of another of the plurality of light emitting elements.