Patent ID: 8379502
Filing Date: 2013-02-19
Classification: G11B,Y10T

Abstract:
1. A recording head comprising: a slider that is disposed opposite to a surface of a magnetic recording medium rotating in a certain direction; a light flux transmission element that is held in the slider, and transmits the light flux emitted from a light source while focusing the light flux toward the surface of the magnetic recording medium; and a recording element that gives the magnetic recording medium a recording magnetic field, wherein the light flux transmission element has a core that guides the light flux in a direction of the magnetic recording medium while reflecting the light flux, and claddings that encapsulate the core in an inner portion, and lengths of a longitudinal direction and a transverse direction of an incident side end surface of the light flux in the core are formed so as to match the lengths of a long axis direction and a short axis direction of the light flux that is entered to the core.