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2. Polaroid Eyewear - Wikipedia

   en.wikipedia.org/wiki/Polaroid_Eyewear

   Polaroid Eyewear manufactures polarized sunglasses and polarized lenses, as well as optical frames, reading glasses, and clip-on lenses. Polaroid Eyewear was a part of the StyleMark group and sold to the Safilo Group in November 2011. Polaroid headquarters is located in Padua (Italy).

3. Sunglasses - Wikipedia

   en.wikipedia.org/wiki/Sunglasses

   Lenses of fixed tint are graded according to the optical density of the tint; in the UK sunglasses must be labelled and show the filter category number. Lenses with light transmission less than 75% are unsuitable for night driving, and lenses with light transmission less than 8% (category 4) are unsuitable for driving at any time; they should ...

4. Eyewear - Wikipedia

   en.wikipedia.org/wiki/Eyewear

   Eyewear also exists for other specialized or niche purposes, such as active shutter 3D systems and anaglyph 3D glasses for stereoscopy, and night-vision goggles for low-light environments. The eyewear industry is estimated to be valued at US$100 billion as of May 2018.

5. Glasses - Wikipedia

   en.wikipedia.org/wiki/Glasses

   Sunglasses allow for better vision in bright daylight and are used to protect one's eyes against damage from excessive levels of ultraviolet light. Typical sunglasses lenses are tinted for protection against bright light or polarized to remove glare; photochromic glasses are clear or lightly tinted in dark or indoor conditions, but turn into ...

6. Night-vision device - Wikipedia

   en.wikipedia.org/wiki/Night-vision_device

   The effect on the natural night vision of the eye is evident A standard telescopic sight augmented with a night-vision device in front on the M110. Note that in addition to the image intensifier, the NVD gathers much more light by its much larger aperture A 1PN51-2 night-vision reticle with markings for range estimation First-person view ...

7. Smartglasses - Wikipedia

   en.wikipedia.org/wiki/Smartglasses

   A curved light guide with partial-reflective segmented mirror array to out-couple the light is used by tooz technologies GmbH. [ 37 ] Virtual retinal display (VRD) – Also known as a retinal scan display (RSD) or retinal projector (RP), is a display technology that draws a raster display (like a television ) directly onto the retina of the eye ...