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TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More

YAG-BBAR Coated Plano-Concave (PCV) Lenses

Any of our lenses with a diameter of 5mm or greater can be specified with blackened edges. To specify the blackening, simply append a –INK to the BBAR coated stock number.
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  • Negative Focal Lengths for Beam Expansion or Light Projection Applications
  • Optimized for R<0.25% at both 532nm and 1064nm
  • AR Coated to Provide <1.0% Reflectance per Surface for 500 - 1100nm
  • Various Coating Options: Uncoated, VIS-EXT, MgF2, VIS 0°, VIS-NIR, NIR I, NIR II, and 1064nm V-Coat

TECHSPEC® YAG-BBAR Coated Plano-Concave (PCV) Lenses are designed to bend parallel input rays to diverge from one another on the output side of the lens causing this lens to have a negative focal length. These lenses can be used for balancing aberrations created by other lenses within a system due to their negative spherical aberration. Plano-Concave (PCV) lenses are commonly used in a variety of applications including image reduction, beam expansion and telescopes. TECHSPEC® YAG-BBAR Coated Plano-Concave (PCV) Lenses feature less than 0.25% reflection at common Nd:YAG laser wavelengths of 532nm and 1064nm. These lenses are also available Uncoated, VIS-EXT, MgF2, VIS 0°, VIS-NIR, NIR I, or with NIR II AR coating options.