We manufacture various lines of optical quality clip-on sunglasses, sold exclusively to eyecare professionals and sunglass specialty retailers. Equally, if the blind is too small, it’s likely to allow the sun’s rays to sneak through, which negates fitting it. We tested the blinds when the sun and the UV were at their highest. This is typically around midday, although between 10am and 4pm is when some caution is needed. We used a smartphone app and sensor to measure the UV index before and after the blind was installed, and with the window up and down. The UV rating outside the vehicle was approximately 5.0, a reading defined by the World Health Organisation as ‘moderate risk’, and one where some shade and sunscreen are recommended.The most important elements of your sunglasses are the lenses. Through advanced lens technology, polarized clip on sunglasses selectively filter horizontally reflected, visually interfering light waves know as ‘glare’. ![]() ![]() Allows air to breathe through and water to go through. The elimination of direct and ambient glare results in superior visual clarity, definition, color transmissions and optical comfort. Shade Control Clip-Ons The Optical Industry’s Most Comprehensive Fitting Kit. Best Shade Tarps for Cattle: 80 minimum, 86 or 90. Polarized Lenses that Meet or Exceed All Standards of the Optical Industry. Shade Control D-clips Polarized Clip on Flip up Plastic Sunglasses, Large Tru Rectangle, 60mm or 2-23/64 Wide X 38mm or 1.50 High (128mm or 5 Wide), Polarized Brown Lenses: Free UK Shipping on Orders Over £10 and Free 30-Day Returns on Selected Fashion Items sold or fulfilled by Amazon. Sold Exclusively to Eyecare Professionals. WE’VE GOT A CLIP FOR THAT MADE IN THE USA 72 PIECE FITTING KIT. UV resistant and tear resistant for Florida, California and. They accomplish this feat through a process called ‘polarization’, much like a ‘venetian blind’ controls sunlight through a window. Polarized glasses shade clips have a laminated surface containing vertical stripes. These stripes only allow vertical polarized light to enter your eyes. Glare is eliminated because the horizontal light is unable to pass through the polarized filter. Polarized lenses are used in sunglasses to reduce glare from reflective surfaces such as a body of water, the hood of a car, or any surface the sun can bounce off of. Hunter Douglas was the first company to develop a light, aluminum Venetian blind called “Flexalum” in 1946.The only way to eliminate glare is to place a polarized lens in its path. Then in New Orleans in 1841, John Hampson invented the mechanism for controlling the angle of the slats. In rapidly colonizing North America, John Webster began to sell “Wooden Venetian Sun Blinds” in Philadelphia in 1767. In 1760, Englishman Gowin Knight received a patent for the first Venetian blinds, and in 1761, St Peter’s Church in Rome was fitted with them. ![]() The term “Venetian Blind” was born! During the 1700’s, Venetian blinds were embraced by the masses across Europe. Traders from Venice imported these designs, and they gained great popularity. In Persia (modern-day Iran), wood blinds were first used from 1100-1500 AB. Centuries ago, Egyptians used reeds to cover their windows, and Chinese used bamboo pieces for privacy and sun protection. Horizontal blinds were first made from wood. Venetian blinds traditionally operate with cloth tape ladders as opposed to string ladders. Venetian blinds can be raised and lowered to cover/uncover the window, and the slats tilt open and closed for privacy and light control. Slats are traditionally aluminum, but may also be vinyl or PVC. The slats lay horizontally, and can be 1”, 1 3/8”, 1 ½”, 2”, or 2 ½” wide. Venetian blinds are window coverings made up of slats that are often 2” wide.
0 Comments
Leave a Reply. |