Techniques for designing optical devices that can be manufactured in volume are disclosed. An optical assembly is build individually and includes a first tube with one end being polished to a slanted angle and attached with a filter. Because of the slanted angle, a predefined angle of incidence can be...http://www.google.com/patents/US7224865?utm_source=gb-gplus-sharePatent US7224865 - Optical multiplexing/multiplexing devices and method for making the same
