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  2. Sunglasses - Wikipedia

    en.wikipedia.org/wiki/Sunglasses

    Lenses of various colors can offer sufficient (or insufficient) UV protection. Regarding blue light, the color gives at least a first indication: Blue blocking lenses are commonly yellow or brown, whereas blue or gray lenses cannot offer the necessary blue light protection. However, not every yellow or brown lens blocks sufficient blue light.

  3. Why Blue Light Glasses May End Up Preventing Disrupted ... - AOL

    www.aol.com/why-blue-light-glasses-may-212200136...

    Zee has been shopping and wearing blue light glasses without prescription lenses since November 2018, and has worn blue light-blocking lenses consistently on weekdays beginning in July 2020 in the ...

  4. Biological effects of high-energy visible light - Wikipedia

    en.wikipedia.org/wiki/Biological_effects_of_high...

    Blue light, a type of high-energy light, is part of the visible light spectrum. High-energy visible light (HEV light) is short-wave light in the violet/blue band from 400 to 450 nm in the visible spectrum, which has a number of purported negative biological effects, namely on circadian rhythm and retinal health (blue-light hazard), which can lead to age-related macular degeneration.

  5. Ohmic contact - Wikipedia

    en.wikipedia.org/wiki/Ohmic_contact

    An ohmic contact is a non-rectifying electrical junction: a junction between two conductors that has a linear current–voltage (I–V) curve as with Ohm's law.Low-resistance ohmic contacts are used to allow charge to flow easily in both directions between the two conductors, without blocking due to rectification or excess power dissipation due to voltage thresholds.

  6. Do blue-light-blocking glasses work? This study suggests no - AOL

    www.aol.com/blue-light-blocking-glasses-study...

    Blue-light-blocking glasses claim to reduce eye strain from devices, but scientists say there are better ways to reduce the strain on eyes. ... - If you wear contact lenses, give your eyes a break ...

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