Optical reading head has carrier, laser diode and optical element, which is subordinated to laser diode, and partially exposed boundary surface is arranged as radiation depressing surface

摘要

The optical reading head (1) has a carrier (2), a laser diode (3) and an optical element (5), which is subordinated to the laser diode. A partially exposed boundary surface is arranged as radiation depressing surface (51), where the radiation depressing surface has a polarization-dependent reflecting coating (52). A detector diode is attached at the optical element and is subordinated to the coating. The subcomponents are carrier, laser diode and optical element.