Ads
related to: best polarized visor extenders- Motorcycle & Powersports
Shop Protective Gear, Parts & More.
Save on Parts & Accessories.
- Interior Accessories
Shop Seat Covers, Mirrors & More.
Save on Parts & Accessories.
- Tires & Wheels
Find Correct Size Tires & Wheels.
Shop by Tire Brands or Vehicle Type
- Exterior Accessories
Shop Mirrors, Covers & More.
Huge Selection and Great Prices.
- Truck Parts & Accessories
Truck Parts & Accessories that Fit
Huge Selection and Great Prices.
- Car Care
Find Parts that Fit Your Vehicle.
Save on Parts & Accessories.
- Motorcycle & Powersports
Search results
Results From The WOW.Com Content Network
A pair of CrystalEyes shutter glasses Functional principle of active shutter 3D systems. An active shutter 3D system (a.k.a. alternate frame sequencing, alternate image, AI, alternating field, field sequential or eclipse method) is a technique for displaying stereoscopic 3D images.
A polarized 3D system uses polarization glasses to create the illusion of three-dimensional images by restricting the light that reaches each eye ...
Extension tubes are sometimes confused with teleconverters, an optical component (i.e., containing lenses) designed to increase effective focal length. A close-up lens also enables focusing closer for macro photography but, unlike an extension tube, a close-up lens actually is an optical element.
Special shaded visors were once allowed in American football; Jim McMahon, quarterback for the Chicago Bears and San Diego Chargers, famously used a sun visor during his professional football career due to a childhood eye injury and almost always wears dark sunglasses when not wearing a football helmet. Darkened visors now require a doctor's ...
Hockey helmets have visors, shields, cages and masks to protect the eyes and face from impact. Hurling helmets protect the eyes from the ball and from near contact with other players. Lacrosse helmets used in men's lacrosse have a cage to protect the face and eyes from impact. Lifeboatman's helmet has a transparent visor to keep sea spray out ...
Later, photographic greeting cards were added to the Sawyer's product line, marketed to major department stores. Sawyer's was the nation's largest producer of scenic postcards in the 1920s and the future View-Master viewer eventually became an extension of the two-dimensional cards. A View-Master reel from 1948