REFLECTION PREVENTING STRUCTURE FOR LIGHT SWITCH

PURPOSE:To surmount the difficulty to uniformly coat a reflection preventing coat on end faces of many optical fibers in a light switch. CONSTITUTION:A reflection preventing coat 11 is applied on the end face 1a of an optical fiber 1 on the master side inserted into an inner ferrule 8, a convex lens...

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Bibliographic Details
Main Authors FURUKAWA SHINICHI, OZAWA KAZUMASA
Format Patent
LanguageEnglish
Published 28.04.1994
Edition5
Subjects
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
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Summary:PURPOSE:To surmount the difficulty to uniformly coat a reflection preventing coat on end faces of many optical fibers in a light switch. CONSTITUTION:A reflection preventing coat 11 is applied on the end face 1a of an optical fiber 1 on the master side inserted into an inner ferrule 8, a convex lens 10 applied with the reflection preventing coat 11 on both faces is arranged in front of the optical fiber 1, and the convex lens 10 is held by an outer ferrule 9. A glass plate 14 applied with the reflection preventing coat 11 on the light incidence face is closely stuck with an adhesive 13 to the end faces of many optical fibers 2 coupled with V-grooves 5 of a substrate 4. The end face 1a of the optical fiber 1 on the master side and the end faces 2a of many optical fibers 2 are arranged at the interval to keep the image forming relation via the convex lens 10.
Bibliography:Application Number: JP19920268591