Request InfoEdmund Optics Inc.Edmund Optics has released Plano-Concave (PCV) Axicons, specialized conical prisms featuring one concave conical surface and one plano surface, which are suitable for measurement and alignment, research, and medical and life sciences applications that require a ring-shaped laser output. In laser materials processing, the PCV Axicons generate a ring-shaped image along the optical axis and create a nondiffractive approximation of a Bessel beam. 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