Patent ID: 7581834
Filing Date: 2009-09-01
Classification: G02C

Abstract:
1. An apparatus, comprising in combination: a first temple piece and a second temple piece, each having an interior passage leaving from an opening in a rear surface of the ear piece to a cavity in an inner surface of the earpiece; a retaining strap having a first end and a second end; a first cap having a shape substantially corresponding to the shape of the cavity in the earpiece of the first temple piece, and a second cap having a shape corresponding to the shape of the cavity in the earpiece of the second temple piece; a means for connecting the first cap and second cap to the ends of the retaining strap, the retaining strap being secured to the temple pieces by inserting the ends of the retaining strap into the rear opening of the earpiece, through the passage and out into the cavity, whereupon the first cap is connected to the first end of the retaining strap and the second cap is connected to the second end of the retaining strap.