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# Plano concave lenses

Plano concave lenses have negative focal lengths with twice the radius of curvature. They produce virtual images, which can be seen through the lens. They diverge a collimated beam and vice versa. As with plano convex lenses spherical aberration is lowest, when the concave surface faces a collimated beam.

Plano concave lenses

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Martin Klecka

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Quantum Design

Krivoklatska 37
199 00 Praha 9
Czech Republic

 Phone: +420 607 014 278 E-mail: czechia@qd-europe.com
Martin KleckaSales Manager
 +420 607 014278 klecka@qd-europe.com