IMPROVEMENTS IN OR RELATING TO SPECTACLES

摘要

Spectacles, such as ''sun-glasses'' comprising lenses provided with a partially reflective, partially transmissive layer which incorporates a hologram. As a result, a holographic image within the area of the lens may be viewed by a person looking at the wearer of the spectacles. The lenses may be of plastics with a relief image hologram formed thereon in moulding the lenses, the lenses being subsequently metallised, for example by metallic sputtering. The hologram may present the appearance of an eyeball winking, a flag, advertizing material or the like.