Semi Rimless Glasses

Semi Rimless Eyewear started to edge thier way into your high street suppliers during 2004, when European fashion designers decided that fashion eyewear was becoming a little stale.

Semi Rimless or half rim frames as they are also know, were revamped utilising wider sides and cut temples.

The re-emergence of layered acetate combined with modern lazer cutting technology, made it possible to cut through different depths of layered acetate sheet, exposing the underlying colours, in intricate patterns.

A Semi Rimless frame is made with one part metal or plastic rim and one part nylon cord.

The cord is usually at the bottom of the frame, but can be at the top or temple edges.

A groove approximately 0.8mm deep and wide is cut into the edge of the lens and the nylon cord is stretched around it, holding the lens in place securely.

The lens has to be made with a minimum edge thickness of 2.00 mm at the thinnest grooved edge when it is cut to size, a 0.80 mm trench to hold the cord and 0.60 mm of lens material each side of the trench for strength.

It is physically possible to reduce the edge thickness at the thinnest grooved edge to 1.50 mm but it is not advisable as the lens material on either side of the trench will then be only 0.35 mm, thus making chipping or splitting more likely.

Semi Rimless with cord at bottom edge.	Semi Rimless with cord at temple edge.	Semi Rimless cord detail,