发明授权
- 专利标题: Optical fiber illuminator, method of fabricating optical fiber illuminator, and optical recording head and optical recording and reading apparatus having the optical fiber illuminator
- 专利标题(中): 光纤照明器,光纤照明器的制造方法以及具有光纤照明器的光记录头和光记录读取装置
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申请号: US12316875申请日: 2008-12-17
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公开(公告)号: US07720332B2公开(公告)日: 2010-05-18
- 发明人: Kang Ho Park , Eun Kyoung Kim , Sung Q Lee
- 申请人: Kang Ho Park , Eun Kyoung Kim , Sung Q Lee
- 申请人地址: KR Daejeon
- 专利权人: Electronics and Telecommunications Research Institute
- 当前专利权人: Electronics and Telecommunications Research Institute
- 当前专利权人地址: KR Daejeon
- 代理机构: Blakely, Sokokoff, Taylor & Zafman LLP
- 优先权: KR2004-104342 20041210; KR2005-34396 20050426
- 主分类号: G02B6/32
- IPC分类号: G02B6/32 ; C03B37/00
摘要:
Provided is an optical fiber illuminator used for recording and reading high density optical information according to a near field recording (NFR) scheme, a method of fabricating the optical fiber illuminator, and an optical recording head and recording apparatus having the optical fiber illuminator. The optical fiber illuminator includes: an optical fiber having a core upon which light is incident and a clad that surrounds the core, one end of the optical fiber having a mirror formed in an inclined manner; and a lens formed on an outer surface of the optical fiber for focusing light reflected by the mirror. The optical fiber illuminator has an improved optical arrangement for optical illumination and detection, it is easy to manufacture, its optical input is easy to control, and it can be readily provided in an array form. When an array type optical recording and reading apparatus having an optical recording head and multiple aperture probes adopts the optical fiber illuminator, the resulting simple arrangement and compact size enables size reduction of the overall apparatus, a signal to noise ratio is high, and high density optical information can be recorded and reproduced at an extremely high rate.