LASER FOCUSING HEAD WITH A LENS CASSETTE

摘要

The invention relates to a laser-focusing head including a main body (1) with a recess (2) designed and sized so as to receive a cassette (3) for a focusing lens, a cassette (3) for a focusing lens being removably inserted in said recess (2) and being retained therein by an attachment system (4, 5a, 5b), characterised in that said attachment system (4, 5a, 5b) includes at least one movable locking cam (4) arranged on the cassette (3) and at least one first locking cam follower (5a) arranged in the main body (1), said locking cam (4) being movable between at least one attachment position, in which the movable cam (4) mechanically engages with at least the first cam follower (5a) so as to secure the cassette (3) inside the recess (2) of said main body (1), and at least one released position, in which the mobile cam (4) is separated from at least the first cam follower (5a) so as to release the cassette (3) and to enable the removal of said cassette from the recess (2) of said main body (1).