Production manner and glasses framework part null of pattern attaching metal make glasses framework

摘要

PURPOSE:To allow production of a small quantity in diversified kinds by irradiating a resin with laser light to produce thermal discoloration or scorch patterns in the metallic parts corresponding to the substrate thereof. CONSTITUTION:The transparent resin 3 which does not substantially absorb the laser light L is built up on rims, fronts, bridges, rim locks, bars, sweat stoppers, etc. This resin 3 is irradiated with the laser light L to produce the thermal discoloration or scorch patterns 4 in the metallic parts 2 corresponding to the substrate thereof. The resin 3 is exemplified by, for example, thermoplastic resins, such as celluloid and cellulose acetate, or thermosetting resins, such as epoxy resins, unsatd. polyester and polyurethane. The spectacle frame parts provided with the patterns 4 easily in a short period of time are obtd. and the production of a small quantity in diversified kinds is possible.