OPTICAL TRANSMISSION MODULE AND ELECTRONIC DEVICE

OPTICAL TRANSMISSION MODULE AND ELECTRONIC DEVICE

To realize reduction of stray light at a low cost while maintaining the flexibility of the entire of an optical waveguide. An optical path (4) having a support board (9) comprises a core part (11) and a clad part (12) surrounding the core part (11). A resin part (13A) formed of a resin having a refr...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: HOSOKAWA,HAYAMI, YASUDA,NARU, TANAKA,JUNICHI, OKUNO, TOSHIAKI, NOZAWA,HIROTO
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
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Beschreibung
Zusammenfassung:To realize reduction of stray light at a low cost while maintaining the flexibility of the entire of an optical waveguide. An optical path (4) having a support board (9) comprises a core part (11) and a clad part (12) surrounding the core part (11). A resin part (13A) formed of a resin having a refractive index higher than that of the air outside the optical path is provided in a part of the surface area of the clad part (12) along the optical transmission direction to which optical signals are transmitted. The resin part (13A) has a bottom surface (13A1) tilted relative to the optical transmission direction on the opposite side of the clad part (12). The bottom surface (13A1) forms an acute angle to the surface of the clad part (12) on the opposite side of a light-receiving element (8) in the resin part (13A).