| http://www.w3.org/ns/prov#value | - ent-shaped openings; said optical component including a lens arranged centrally of said segment-shaped opening of said first contact-part and arranged on a center point of said spherical surface of said first contact-part, said first contact-part having a convex spherical abutment surface and said second contact-part having a concave spherical abutment surface; wherein said optical fiber opens in
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