A plastic focusing cup is directly mounted on the bottom metallic contact plates for surface mounting of an optoelectric diode package. The focusing cup and the metallic contacts are held together by providing through holes in the metallic plates and channels at the bottom surface of the metallic plates...http://www.google.es/patents/US6365922?utm_source=gb-gplus-sharePatente US6365922 - Focusing cup for surface mount optoelectronic diode package
Focusing cup for surface mount optoelectronic diode package
