L

Laminated (or compound) glass
consists of two or more sheets of glass with one or more viscous plastic layers “sandwiched” between the glass panes. The solid joining of the glasses takes place in a pressurized vessel called an autoclave (similar to an oven). In the autoclave, under simultaneous heating of the already processed layers of glass and special plastic, lamination occurs. When laminated safety glass breaks, the pieces remain attached to the internal plastic layer and the glass remains transparent.
Laminated glass
Laminated glass is a combination of two or more glass sheets with one or more interlayer’s of plastic (PVB) or resin. In case of breakage, the interlayer holds the fragments together and continues to provide resistance to the passage of persons or objects.
Light-to-solar-gain ratio
The ability of glass to permit sunlight to pass without excessive solar heat gain.
Liquid crystal glazing
This is laminated glass, with a minimum of two clear or colored sheets of glass and a liquid crystal film, assembled between at least two plastic interlayer’s. In the OFF state, the liquid crystals are not aligned, which prevents vision, yet allows light to pass through the glass. When is it switched ON, the liquid crystals align, turning the glass transparent and allowing vision through the glass.
Lite of glass
A single piece of glass, regardless of thickness.
Low Emissivity Glass
Commonly known as “low-E” glass and often used in double and triple glazing units, this window glass has a special thin-film metallic or oxide coating which allows the passage of short-wave solar energy into a building but prevents long-wave energy produced by heating systems and lighting from escaping outside. Low-E glass thus allows light to enter while also providing thermal insulation.
Low-emittance (low-E) coating-Microscopically
thin coating of metal oxide, which allows the sun’s heat and light to pass trough the glass into the building. At the same time it blocks heat from leaving the room, reducing heat loss considerably.
Laminating Glass
two or more sheets of glass with an inner layer of transparent plastic to which the glass adheres if broken. used for safety glazing and sound reduction
Low-e glass
Low-emission glass (Low-E) is a clear glass, it has a microscopically-thin coating of metal oxide. This allows the sun's heat and light to pass trough the glass into the building. At the same time it blocks heat from leaving the room, reducing heat loss considerably.
Laminator
Manufacturer of laminated glass, which consists of 2 or more layers of glass and/or plastic bonded together with a PVB or PVC interlayer.
Low-conductance Spacers
an assembly of materials designed to reduce heat transfer at the edge of an insulating window. spacers are placed between the panes of glass in a double- or triple-glazed window.
Low-Iron Glass
Also referred to as "optically-clear" glass; a special production using raw materials with naturally low levels of iron oxide for superior, near-colorless clarity and brilliance. Excellent for back-painted glass as it renders truest colors.