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They are also used as a material to increase the scanning range of barcodes in factory settings. The sheeting consists of retroreflective glass beads, microprisms, or encapsulated lenses sealed onto a fabric or plastic substrate. Many different colors and degrees of reflection intensity are provided by numerous manufacturers for various ...
PPG expanded quickly. By 1900, known as the "Glass Trust", it included 10 plants, had a 65 percent share of the U.S. plate glass market, and had become the nation's second largest producer of paint. [4] Today, known as PPG Industries, the company is a multibillion-dollar, Fortune 500 corporation with 150 manufacturing locations around the world.
Frequently quoted gain levels of various materials range from 0.8 of light grey matte screens to 2.5 of the more highly reflective glass bead screens. Very high gain levels could be attained simply by using a mirror surface, although the audience would then just see a reflection of the projector, defeating the purpose of using a screen.
The Sherwin-Williams Company is an American paints and coatings company based in Cleveland, Ohio. It is primarily engaged in the manufacture, distribution, and sale of paints, coatings, floorcoverings, and related products with operations in over 120 countries. [ 2 ]
In 1865, Edward and his brother Charles, along with Edward L Day entered the glass business in Kent, Ohio as Day & Williams. He left that company in 1870, investing $15,000 to partner with Henry A. Sherwin. Edward P. Williams was executive vice president and a member of the board of directors of the company at the time of his death.
This type of retroreflector can consist of many small versions of these structures incorporated in a thin sheet or in paint. In the case of paint containing glass beads, the paint adheres the beads to the surface where retroreflection is required and the beads protrude, their diameter being about twice the thickness of the paint.
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