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Understand about Lens
The earliest known lenses were made from polished crystal, often quartz. Some of plastic lenses can block more Ultraviolet (UV) than glass lenses and provide more protection for eye. Multicoating (MC) technology can make the plastic lenses more durab
What is Photochromic Lens?
Photochromic lenses are optical lenses that darken on exposure to specific types of light of sufficient intensity, most commonly ultraviolet (UV) radiation. In the absence of activating light the lenses return to their clear state. Photochromic lense
What is Anti Blue-Ray Lens?
What is blue light? Blue light, one of the many hues in all visible light. Blue light is naturally produced by the sun but also by computer monitors ,smartphone screens and other digital devices.In additional to these, blue light is produced by LED a
