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US 2019/0246471 A1Published application
Light-emitting module and light-emitting device
AssigneeSharp Kabushiki Kaisha
InventorTAKESHI TAKARADA
Life of this patent
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Abstract
A light-emitting module includes a first LED, a second LED connected in parallel with the first LED, and a constant voltage circuit connected in series with the second LED and in parallel with the first LED. The constant voltage circuit maintains a voltage between one end and the other end at a constant voltage. The first LED and the second LED have the same VF characteristics.
Claims6
A light-emitting module comprising:
- a first light-emitting diode;
- a second light-emitting diode connected in parallel with the first light-emitting diode, and having same characteristics as the first light-emitting diode;
- and
- a constant voltage circuit connected in series with the second light-emitting diode, and connected in parallel with the first light-emitting diode.
1 more element
A light-emitting device comprising:
- a first light-emitting diode array including a plurality of light-emitting diodes connected in series;
- a second light-emitting diode array including a plurality of light-emitting diodes, and connected in parallel with the first light-emitting diode array;
- and
- a constant voltage circuit connected in series with the second light-emitting diode array, and connected in parallel with the first light-emitting diode array,
- wherein
- all the light-emitting diodes included in the first light-emitting diode array and the second light-emitting diode array have same characteristics.
3 more elements
Dependencies are inferred from the claim text.