Optisches Gerät

摘要

In an optical apparatus according to the present invention, a light-absorbing film (32) is formed between a light-receiving element (13) and an optical semitransparent film (25) formed on the light-receiving element (13) to cause the light-receiving element (13) to partially receive incident light. In addition, in an optomagnetic recording polarization optical apparatus according to the present invention, a prism (15) for guiding a reflected light component from an optomagnetic recording medium (22) to a light-receiving element and the light-receiving element are arranged on the same substrate.