Illumination device and illumination method
A lighting system with synchronized LEDs of varying wavelengths and fractal/1/f waveforms addresses the harshness of LED lighting, offering gentle illumination for humans and promoting plant growth.
JP7743672B2Active Publication Date: 2025-09-25誉田 栄一
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Patent Information
- Application Number
- JP2021183744
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2021-10-18
- Publication Date
- 2025-09-25
- Estimated Expiration
- 2041-10-18
AI Technical Summary
Technical Problem
LED lighting, particularly blue LEDs, can be harsh on the eyes and are harmful due to their short wavelengths, causing eye strain and potential retinal damage, and they can also negatively impact plant growth and photosynthesis.
Method used
A lighting system using LEDs with different peak wavelengths in the blue, violet, or ultraviolet region, synchronized to maintain constant total light intensity, and driven by fractal or 1/f waveforms to reduce flickering and provide gentle illumination.
Benefits of technology
The system reduces eye strain and fatigue by minimizing flickering and provides soothing light for humans, while promoting plant growth and photosynthesis by reducing stimulation to photoreceptors.
✦ Generated by Eureka AI based on patent content.
Abstract
To provide an illuminating device and an illuminating method capable of reducing influences on a living body.SOLUTION: An illuminating device comprises: a first light-emitting diode 10 that has a first peak wavelength in a blue, violet, or ultraviolet light area; a second light-emitting diode 20 that has a second peak wavelength different from the first peak wavelength in a blue, violet, or ultraviolet light area; and a lighting circuit 30 that makes the first light-emitting diode 10 and the second light-emitting diode 20 emit light while varying the quantities of light of the first and second light-emitting diodes in synchronization with each other. The lighting circuit 30 performs lighting control so that a sum total of the quantity of light of the first light-emitting diode 10 and the quantity of light of the second light-emitting diode 20 is constant. By changing the first light-emitting diode 10 to a light-emitting diode having a peak in a blue region and changing the second light-emitting diode 20 to a light-emitting diode having a peak in a red region, the illuminating device can be used for illumination for raising plants. PWM control utilizing a phase inverter circuit allows a sum total of the quantity of light of the first light-emitting diode 10 and the quantity of light of the second light-emitting diode 20 to be constant.SELECTED DRAWING: Figure 1
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