Method of final assembly of a light projector module

A method of final assembly of a light projector module which comprises a base plate with two opposite sides, a light source mounted on the base plate for emitting at least one light beam, a micro-electro-mechanical-system (MEMS) scanning assembly mounted on the base plate at a distance from the light source for scanning the at least one light beam over a display area, and a set of one or more lenses mounted on the base plate, the method of final assembly comprising steps of:

• firstly, providing the base plate mounted thereon, the light source and the MEMS scanning assembly, wherein the base plate has, between the light source and the MEMS scanning assembly, a mounting surface accessible at one side of the base plate;
• secondly, positioning the set of one or more lenses on the mounting surface and, after the positioning, adjusting the position of the one or more lenses of the set, wherein the at least one light beam is emitted by the light source, deflected by the MEMS scanning assembly and monitored in the display area during said adjusting;
• and lastly
• mounting the one or more lenses of the set in the adjusted position fixedly on the mounting surface of the base plate to finalize the assembly of the light projector module.