太陽光と照明の科学
liproが発信する、光と暮らしの知識
シーリングライト
How to Choose an Eye-Friendly Ceiling Light: Considering Glare, Color Temperature, and Color Rendering
To choose a ceiling light that is easy on the eyes, it's important to consider not only brightness but also glare, flicker, color temperature, color rendering, and how well it s...
光の科学
What is healthy light? A new approach to lighting that improves your eyes, sleep, and daily life
Lighting isn't just about brightening a room. We'll explain the concept of "healthy light" that you should know when choosing...
目の健康
Is "LED blue light is three times that of the sun" true? A lighting professional explains scientifically
Is "LEDs are three times brighter than the sun" true? Explaining the truth about LED blue light with the latest...
目の健康
How to Choose Lighting to Protect Children's Eyes | Basic Knowledge of Blue Light and Color Rendering
We'll explain the basics of choosing lighting to protect children's eyes, such as blue light, color rendering, and flicker. Find...