Blue light (approximately 415-455nm short-wave visible light) is the band that has been most discussed and most easily misinterpreted in the topic of eye protection over the past decade. This special topic presents the evidence in layers: Retinal photochemical hazards have a dose threshold premise, and the normal use of ordinary screens is far below the hazard level. However, the evidence that night light affects the rhythm of melatonin is relatively sufficient.
Conclusion first: During the day, there is no need to filter blue light to sacrifice color. At night, the main focus is on system night viewing and ambient light management. The cost of color deviation and brightness reduction of dyeing anti-blue light films needs to be weighed against their actual benefits.
A quick overview of key terms
Blue light protection (blue light filtering
Anti-blue light products reduce blue light flux by absorbing or reflecting short-wave blue light at 415-455nm. Common implementations include the reflection of dyed substrates or coatings. ... This page focuses on: Blue Light Protection Special Topic: Scientific Boundaries and Rational Choices
Color fidelity
Color fidelity refers to the ability of a display system to reproduce the original colors. The main factors affecting color fidelity in the film application process are dyeing and phase dispersion. ... This page focuses on: Blue Light Protection Special Topic: Scientific Boundaries and Rational Choices
Retinal blue light hazard
Retinal blue light hazard refers to the mechanism by which long-term and high-dose exposure to high-intensity blue light at 415-455nm May cause photochemical damage to the retina, with a dose threshold prerequisite. ... This page focuses on: Blue Light Protection Special Topic: Scientific Boundaries and Rational Choices
Eye hygiene
Eye hygiene refers to a set of behavioral norms surrounding screen usage: the sum of distance, duration, light, posture, blinking and rest rhythm. ... This page focuses on: Blue Light Protection Special Topic: Scientific Boundaries and Rational Choices
Related reading
- The design principles of Woowhead: no color bias, no reduction in brightness, and no play with concepts
- Key points for eye use at night: Balance between ambient light, brightness and blue light
- A Guide to Eye Use during Long Online Classes: Three Dimensions: Devices, Lighting, and Habits