US Patent 11981097 Pattern printing on prisms

Multi-sided prism printing systems and processes that apply a light-blocking material (e.g., a polymer) to at least part of the surfaces of at least two sides of a prism at the same time. The multi-sided prism printing systems and processes may significantly increase throughput of prism printing when compared to conventional prism printing methods in which only one side of a prism is printed at a time. In addition, the multi-sided prism printing systems and processes may provide a more accurate alignment of the printed patterns on lateral faces of the prism when compared to conventional prism printing methods in which only one lateral face of a prism is printed at a time.