deck prisms, and vault lights. These century-old techniques are still being applied today for the diffusion of LEDs or for increasing the brightness of LCD displays. People in optics are a bit ...

deck prisms, and vault lights. These century-old techniques are still being applied today for the diffusion of LEDs or for increasing the brightness of LCD displays.

A long search of pictures online revealed what it is — a “deck prism.” It was used to give extra light to parts of an antique sailing ship that were below the waterline. The first deck ...

The ingenious solution to providing light while eliminating the fire risk was a deck prism. The glass prism, which could be laid flush into the deck or hung from the ceiling under a small opening ...

The ingenious solution to providing light while eliminating the fire risk was a deck prism. The glass prism, which could be laid flush into the deck or hung from the ceiling under a small opening ...

A long search of pictures online revealed that it is a "deck prism" — something that was used to give extra light to parts of an antique sailing ship that were below the waterline. The first ...

A long search of pictures online revealed what it is — a “deck prism.” It was used to give extra light to parts of an antique sailing ship that were below the waterline. The first deck ...

A long search of pictures online revealed it as a "deck prism." It was used to give extra light to parts of an antique sailing ship that were below the waterline. The first deck prisms were used ...