Types of Glass

Optical Glass

Optical glasses will be found in scientific instruments, microscopes, fighter aircraft and most commonly in spectacles.

The most important properties are the refractive index and the dispersion:

  • Refractive index is a measure of how much the glass bends light.
  • Dispersion is a measure of the way the glass splits white light into the colours of the rainbow.

Glass makers use the variations in these characteristics to develop optical glasses.

  • British Glass represents the interests of primary glass manufacturers and the glass supply-chain, from raw materials to retail and the end-consumer" credits="n/a" >
  • Modern life would not be possible without glass
    But, what is this amazing substance, where does it come from and how is it made?" credits="n/a" >
  • Find a reputable supplier from our member directory" credits="n/a" >
  • Learn about the different methods of manufacturing glass in our information section" credits="n/a" >
  • Did you know that Glass is 100% recyclable and can be recycled an infinite number of times without loss of quality, strength or functionality?" credits="n/a" >
  • We provide relevant, impartial, and comprehensive advice and information - from leading experts across key legislative areas" credits="n/a" >
  • British Glass represents the interests of primary glass manufacturers and the glass supply-chain, from raw materials to retail and the end-consumer" credits="n/a" >
  • Learn about the amazing material glass" credits="n/a" >
  • British Glass represents the interests of primary glass manufacturers and the glass supply-chain, from raw materials to retail and the end-consumer" credits="n/a" >
  • Our enviromental section goes into more depth on the environmental and energy issues affecting the glass supply chain" credits="n/a" >

In this Section


About Glass



 
 

Many glass making terms have entered the language: 'Shut yer gob': a molten lump of glass is called a 'gob' to which the glass blower attached a tube to blow the glass into shape. The blower had to blow hard which made his cheeks very large. Today someone with a big mouth is told they have a big gob.


British Glass - Twitter

RT @FriendsGlassUK Want to see your artwork featured on #Portsmouth City Glass Banks? #Competition https://t.co/ZmKYLKdrnp https://t.co/xw…

Congratulations to 2016's #Glass Focus #Sustainability #Award winner @OI_is_Glass! Our 2017 awards are FREE to ente… https://t.co/qxLtlObn93

RT @beer_bottles Thanks @PackScot for this story about miniature beer bottle @BeatsonClark produced for @BrewDog https://t.co/tljl9x3ZiX #…

By installing energy-efficient #windows Europe could save 100mill tonnes of CO2 per year. Learn more… https://t.co/HoOpXVEg0r