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  2. Solar viewer - Wikipedia

    en.wikipedia.org/wiki/Solar_viewer

    The recommended optical density of this eyewear is 5, meaning that the solar viewing filter only permits 1 part in 100,000 of incident light to pass through. In addition to blocking visible light, solar viewers also block ultraviolet and infrared rays which can damage one's eyes.

  3. Where to buy solar eclipse glasses and how to know if they're ...

    www.aol.com/lifestyle/solar-eclipse-glasses-2024...

    These glasses are independently tested and are shown to filter 100% of harmful UV and infrared light, and 99.9% of intense visible light. This 10 pack is great for splitting among friends or a ...

  4. Wood's glass - Wikipedia

    en.wikipedia.org/wiki/Wood's_glass

    Wood's glass is an optical filter glass invented in 1903 by American physicist Robert Williams Wood (1868–1955), which allows ultraviolet and infrared light to pass through, while blocking most visible light. [1]

  5. Smart glass - Wikipedia

    en.wikipedia.org/wiki/Smart_glass

    When installed in the envelope of buildings, smart glass helps to create climate adaptive building shells, [3] which benefits include things such as natural light adjustment, visual comfort, UV and infrared blocking, reduced energy use, thermal comfort, resistance to extreme weather conditions, and privacy. [4]

  6. 15 Chic Dark Sunglasses That Actually Block Out the Sun - AOL

    www.aol.com/entertainment/15-chic-dark...

    And with summer in full force, you’re going to need those glasses to keep the sun out of your eyes. 21 Flattering Sunglasses That Scream 'I Belong to the Country Club' Before you buy your next ...

  7. Optical filter - Wikipedia

    en.wikipedia.org/wiki/Optical_filter

    An ultraviolet-blocking filter renders images closer to the visual appearance of the scene. As with infrared filters there is a potential ambiguity between UV-blocking and UV-passing filters; the latter are much less common, and more usually known explicitly as UV pass filters and UV bandpass filters. [4]