Title:
WAVEGUIDE TYPE REDUCED IMAGE SENSOR AND ITS MANUFACTURE
Document Type and Number:
Japanese Patent JP3408896
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a simple method of manufacturing a waveguide type reduced-image sensor and a polymer optical waveguide which have a structure for reducing the loss of an optical signal at the bend part of the polymer optical waveguide.
SOLUTION: A trench 102 for loss reduction of an optical signal at the bend part of an optical waveguide 101 is adjacently formed to the outside of the bend part of the optical waveguide 101. The trench 102 is filled with gas whose refractive index is lower than that of a waveguide core part and further that of a waveguide clad part. The optical waveguide 101 is manufactured as follows; the pattern surface of a pattern substrate wherein a trench having both open ends turning to a capillary and its adjacent trench whose both ends are sealed are formed is made to stuck on a plane substrate, the single end of the capillary is sealed, only the capillary whose single end is an aperture is filled with monomar solution as the material of core of the optical waveguide 101, by the effect of capillarity, and the monomar solution is turned into polymer.
Inventors:
Manabu Fujimoto
Yutaka Unuma
David Hard
Yutaka Unuma
David Hard
Application Number:
JP17882595A
Publication Date:
May 19, 2003
Filing Date:
July 14, 1995
Export Citation:
Assignee:
Sharp Corporation
International Classes:
G02B6/00; G06T1/00; H01L27/14; G02B6/122; H04N1/028; (IPC1-7): H01L27/14; G02B6/00; G02B6/122
Domestic Patent References:
| JP730716A | ||||
| JP63157109A | ||||
| JP648668A | ||||
| JP477705A | ||||
| JP6413010U |
Other References:
【文献】1990年電子情報通信学会春季全国大会講演論文集,Part 5,p.7
Attorney, Agent or Firm:
Yoshio Kawaguchi (1 person outside)
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