| 摘要 |
A pair of spectacles 1 comprises means 2, such as side arms or a nose bridge, associated with the eyepieces 3, which means are adapted to be extensible. Telecopic side arms and a telescopic nose bridge are described. A spring or similar resilient member may be used to bias the telescopic parts apart. Locking means may also be provided and may take the form of interlocking ball and socket connections. |
