Combined Optical Industries Ltd. was founded in 1936 by Arthur Kingston and was regarded as the leader in plastic optics. The company pioneered techniques in the precision moulding of plastic optics using injection and compression moulding. As more and more low-vision products were introduced, the brand name 'COIL' started to become recognised throughout the world.

In early 2000 COIL moved to a purpose built facility only a short distance from their original factory. The new modern, hi-tech offices provide a superior working environment that allows COIL to further expand their influence on the Low vision market.

As we enter the twenty-first century, the working ethos that has seen COIL. become one of the most successful innovators and manufacturers of optical products in the world, remains un-altered. COIL aim to deliver quality products and service to their customers at all times