Peek-a-Boo
Litracon is a combination of optical fibers and concrete. A wall made of Litracon has the strength of traditional concrete but thanks to an embedded array of optical glass fibers, which lets in the view of the outside world, such as the silhouette of trees, or passersby, that are displayed inside the building.
The glass fibers allow light to travel by points between the two sides of the blocks. Due to their parallel placement, the light-information on the brighter side of such a wall seems unchanged on the darker side. Also there is no change in the color of the light.
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Comment from Uncle Al
Time: February 20, 2009, 12:33 pm
The alkali in concrete dissolves glass. The is why fiber-reinforced concrete is polypropylene or steel not glass roving.