US Patent 11774774 Structure for collimating a light source

A structure can be provided for collimating light from a light source (e.g., vertical cavity surface emitting diodes). The structure can include at least one light source, a pit formed at an output of the at least one light source and a microbead formed in the pit. Microbeads can function as a lens to collimate light emitting from the at least one light source. The structure can provide by forming an array of VCSELs on a substrate, forming a pit in front of each VCSEL of the array of VCSELs, and assembling a microbead in each pit formed in front of each VCSEL. The microbeads can thereby function as lenses to collimate light emitted from the VCSELs.