| 摘要 |
A visible light communication oriented illumination device includes: a transmitting section including a light emitting element which emits an excitation light, a first wavelength-converting material, and a second wavelength-converting material; and a receiving section including a receiver and a demodulator. The first wavelength-converting material absorbs the excitation light and emits a first light. The second wavelength-converting material absorbs the excitation light and emits a second light which is different in wavelength and has a shorter 1/10 persistence time than the first light. The transmission section is configured to emit an illuminating light including the first and second lights. The receiver receives the second light and transforms the second light into an electrical signal, and the demodulator receives the electrical signal outputted from the receiving section and outputs a signal corresponding to an information transmitted from the transmitting section.
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