Light transmission of glasses

Figure 17. Chronology of improvement in light transmission of glasses over periods of history leading to introduction of photonics technology in the information age. Polymer protection of glass surfaces is an essential present feature.

Krogerus VE, Nieminen Elna, Savolainen UM. Light transmission of glass containers used in pharmacy. Farm Aikak 1970 79 101-107. 

A study of the light transmission of commercial glass containers currently employed. 

OTHER COMMENTS used as a catalyst in the oxidation of sulfur dioxide to sulfur trioxide and alcohol to acetaldehyde used in the manufacture of yellow glass also used as an inhibitor to ultraviolet light transmission in glass and as a depolarizer useful as a developer in photography. 

If the initial UV exposure of the glass takes place through a mask, pictures and images can be produced in special doped glasses. Dalton discovered this effect in 1941 [407]. The directed development of corresponding products was later published by Stookey [496]. Nowadays this effect is of interest to suppress light transmission in glass microdevices in certain places. 

For an air/glass interface, tan 0b = n, the refractive index of glass. In a gas laser, the light must be reflected back and forth between mirrors and through the gas container hundreds of times. Each time the beam passes through the cavity, it must pass through transparent windows at the ends of the gas container (Figure 18.10b), and it is clearly important that this transmission be as efficient as possible. 

Optical connectors ate used to terminate and interconnect fiber optic cables (see Fiber OPTICS). Transmission of information by light through optical fibers made of glass or plastic is less expensive in many cases than transmission of electric signals through wire. An advantage of fiber optic technology is that it is... 

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