公开(公告)号：US20100061199A1

公开(公告)日：2010-03-11

申请号：US12312613

申请日：2007-11-09

申请人： Masakazu Hirara ,  Manabu Oumi ,  Majung Park

发明人： Masakazu Hirara ,  Manabu Oumi ,  Majung Park

IPC分类号： G11B11/00

CPC分类号： G11B5/314 ,  G11B11/10536 ,  G11B11/1058 ,  G11B2005/0005 ,  G11B2005/0021

摘要： There is provided a near field light generating element 22 including a polyhedron core 40 having a reflecting surface 40a configured to reflect a luminous flux L in a direction different from the direction of introduction, a luminous flux condensing unit 40b formed by drawing in such a manner that a cross-sectional area orthogonal to a longitudinal direction extending from the one end side toward the other end side is reduced gradually for propagating the reflected luminous flux toward the other end side while condensing the same; a near field light generating unit 40c further drawn from an end portion of the luminous flux condensing unit to the other end side for generating a near field light R from the condensed luminous flux and emitting the same from the other end side toward an outside; and a clad 41 configured to confine the core in the interior thereof by coming into tight contact with a side surface of the core, in which an end surface 40d has a size not exceeding the wavelength of the light and a side surface of the near field light generating unit is light-shielded by a light-shielding film 42.

摘要翻译： 提供了一种近场光发生元件22，其包括多面体芯40，多面体芯40具有被配置成沿与导入方向不同的方向反射光束L的反射面40a，以这种方式绘制形成的光束聚光单元40b 与从一端侧朝向另一端侧的长度方向正交的横截面积逐渐减小，以使反射的光束向另一端侧传播，同时使其聚光; 近场光产生单元40c，其进一步从光束聚光单元的端部被拉伸到另一端侧，用于从冷凝光束产生近场光R并从另一端朝向外部发射; 以及包层41，被配置为通过与芯的侧表面紧密接触来将芯限制在其内部，其中端面40d具有不超过光的波长的尺寸和近场的侧表面 光产生单元被遮光膜42遮光。