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  2. Dark adaptor goggles - Wikipedia

    en.wikipedia.org/wiki/Dark_adaptor_goggles

    Dark adaptor goggles are goggles made with red-tinted plastic lenses. Dark adaptor goggles were invented by Wilhelm Trendelenburg in 1916. [1] The concept is based on the work by Antoine Béclère on dark adaptation of the eye, where it is noted that fluoroscopy relies on the use of the retinal rods of the eye.

  3. Color blind glasses - Wikipedia

    en.wikipedia.org/wiki/Color_blind_glasses

    Strongly tinted sun glasses [24] or contact lenses [25] are often used to decrease luminosity. Red-tinted lenses are very common, but different hues are used to optimize the comfort of the wearer. [26] Achromats often use red filters while driving to help identify traffic lights when position cues are not sufficient. Similar to the operation of ...

  4. Anti-reflective coating - Wikipedia

    en.wikipedia.org/wiki/Anti-reflective_coating

    Uncoated glasses lens (top) versus lens with anti-reflective coating. The reflection from the coated lens is tinted because the coating works better at some wavelengths than others. An antireflective , antiglare or anti-reflection ( AR ) coating is a type of optical coating applied to the surface of lenses , other optical elements, and ...

  5. Anaglyph 3D - Wikipedia

    en.wikipedia.org/wiki/Anaglyph_3D

    Good color perception of green and blue. No red is visible on digital media due to strong separation of red. This is most commonly used. Regular version (red channel has only the red third of the view) Half version (red channel is a red-tinted grayscale view. Less retinal rivalry). anachrome: dark red cyan; i.e., green + blue + some red

  6. Photochromic lens - Wikipedia

    en.wikipedia.org/wiki/Photochromic_lens

    A photochromic eyeglass lens, part of the lens darkened after exposure to sunlight while the other part remained covered. A photochromic lens is an optical lens that darkens on exposure to light of sufficiently high frequency, most commonly ultraviolet (UV) radiation. In the absence of activating light, the lenses return to their clear state.

  7. The best stocking stuffers under $25 for everyone on your list

    www.aol.com/lifestyle/the-best-stocking-stuffers...

    Assorted Pokemon Cards (50 pieces) $6 $10 Save $4. See at Amazon. Tony's Chocolonely Chocolate Bar Variety Pack. $10. See at Amazon. Retro Magic 8 Ball. $15. See at Amazon. UNO Card Game . $7.

  8. Mirrored sunglasses - Wikipedia

    en.wikipedia.org/wiki/Mirrored_sunglasses

    The lenses typically give the wearer's vision a brown or grey tint. The mirror coating decreases the amount of light passing through the tinted lens by a further 10–60%, making it especially useful for conditions of sand, water, snow, and higher altitudes. Mirrored sunglasses are one-way mirrors. [citation needed]

  9. Circle contact lens - Wikipedia

    en.wikipedia.org/wiki/Circle_contact_lens

    A circle contact lens, also known as a big eye contact lens and circle lens, is a cosmetic (non-corrective and decorative) contact lens that makes the eye's iris appear larger. It has become a trend throughout East , South and Southeast Asia and is largely produced in Japan , South Korea and China .