Title:
PLANO-CONVEX LENS, FIBER ARRAY MODULE, AND LIGHT RECEPTION MODULE
Document Type and Number:
WIPO Patent Application WO/2018/042936
Kind Code:
A1
Abstract:
The purpose of the present disclosure is to achieve a reflection lens-optical fiber coupling system in which a part of light that has been split for use in a monitor and returned to an optical fiber is efficiently coupled in the optical fiber. The plano-convex lens according to the present disclosure is provided with a flat surface (21) and a convex surface (23), wherein: the convex surface (23) has a first aspherical surface (A1) and a second aspherical surface (A2) that convert, into parallel rays, light rays emitted from end faces of two optical fibers (11), the end faces being respectively disposed at a first position (P1) and a second position (P2); and in the case when the parallel rays entering the first aspherical surface (A1) are reflected on a reflection surface formed on the flat surface (21), the second aspherical surface (A2) focuses the parallel rays on the second position (P2).
Inventors:
NAKAHARA MOTOHIRO (JP)
TERUI HIROSHI (JP)
TERUI HIROSHI (JP)
Application Number:
PCT/JP2017/026395
Publication Date:
March 08, 2018
Filing Date:
July 21, 2017
Export Citation:
Assignee:
TDK CORP (JP)
International Classes:
G02B6/26; G02B6/28; G02B6/32; G02B13/18; G02B17/08; H01L31/0232
Domestic Patent References:
| WO2003107055A1 | 2003-12-24 |
Foreign References:
| JP2011028140A | 2011-02-10 | |||
| JP2003084168A | 2003-03-19 | |||
| JP2009093131A | 2009-04-30 | |||
| US20110110666A1 | 2011-05-12 | |||
| JPH11317836A | 1999-11-16 | |||
| JP2004126586A | 2004-04-22 |
Attorney, Agent or Firm:
OKADA, Kenji et al. (JP)
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