Laser device and method for producing same

A method for producing a laser device having a laser configured in order to emit a laser beam, comprising:

• providing a lens;
• providing a lens holder having at least two parts arranged one after another in a propagation direction of the laser beam, wherein one of said at least two lens holder parts is a tubular body having a through-opening such that said one lens holder part can be pushed onto a housing of the laser, and pushing said one lens holder part onto the housing;
• wherein said at least two lens holder parts each have an end side oriented obliquely with respect to the propagation direction, bringing said parts into any of a multiplicity of relative positions with respect to one another, respectively, with their end sides oriented obliquely with respect to the propagation direction bearing on one another;
• adjusting the length of the lens holder in the propagation direction by selecting one of the relative positions of said parts;
• attaching said lens to said lens holder;
• and
• blocking further positioning of the lens holder parts relative to each other.