Abstract: An optical projector module proofed against distortion caused by heat building up in and around the light-emitting element includes a printed circuit board (PCB), a light emitting element, and an optical structure. The optical structure on the PCB includes a supporting member almost completely enclosing the light emitting element. The supporting member includes an embedded metal heat dissipating layer extending to cover outside surfaces of the supporting member. The metal heat dissipating layer occupies more than 70% of the outside surfaces of the supporting member, and being metallic the dissipating layer is able to conduct electricity.

Abstract: A circuit board includes an assembly and a labeling area. The assembly area is for installation of the elements. The labeling area is for marking of the circuit board. A paint layer is coated on a surface of the labeling area. A two-dimensional code is printed on the paint layer. A camera module having the circuit board and a method for labeling the circuit board are also provided.

Abstract: An imaging module allows heated internal gas to escape out of a camera/imaging module when heat is applied to the module during an adhesive curing manufacturing step without making manufacture more difficult due to molding issues. The imaging module includes a lens holder with top and bottom surfaces. The bottom surface defines an opening at a bottom of the lens holder. The opening extends through the inside and outside walls of the lens holder. The opening allows heated internal gas to escape out of a camera/imaging module.

Abstract: An optical projector module protected against image distortion caused by heat building up in the light-emitting element includes a printed circuit board, and a light emitting element and an optical member mounted on the printed circuit board. The optical member includes a supporting structure which forms a housing. The housing contains the light emitting element, and a dissipating member made of electrically and thermally conductive metal is embedded on an inner surface of the housing. The housing extends outside of the housing and forms a path to carry away heat generated.

Abstract: A optical projector device less vulnerable to deformation of projected light by generated heat includes a printed circuit board, a light source, and an optical module. The heat-generating light source emits a laser beam, the optical module being mounted on the printed circuit board and surrounding the light source. The optical module comprises a lens holder, a collimating optical element received in the lens holder, and a diffractive optical element away from the light source. The lens holder comprises an outer lens holder and an inner lens holder fixed in the outer lens holder, and the diffractive optical element is received in the inner lens holder, this arrangement enables the dissipation of any heat-expansion force away from these elements.