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2022
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Invention
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Lighting device. A lighting device includes a lighting device cover having an emission opening; a... |
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Invention
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Lighting device. There is provided a lighting device that emits light, the lighting device (100) ... |
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Invention
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Lighting device. This lighting device (100) comprises a light-emitting element (20) and a light r... |
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2020
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Invention
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Ceiling-mounted type lighting device. A light-receiving unit containing four optical sensors arra... |
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Invention
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Ceiling-mounted type lighting device. The tilt of a light-receiving unit can be adjusted using a ... |
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Invention
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Ceiling-mounted lighting device. The present invention enables the tilt of a light-receiving unit... |
