BK7 Plano-Concave Lenses

BK7 Plano concave lens(PCV) is mainly used in diverging parallel light. BK7 material has high transmittance from visible light to near infrared(350-2000nm). When don’t need the feature of uv silica material, often use this type in laser and telescope application.

CAT. Dia(mm) EFL(mm) BFL(mm) R1(mm) CT(mm) ET(mm)
ALPV01-004-006 4 -6 -6.7 -3.10  1.5 2.2
ALPV01-006-012 6 -12 -13 -6.20  1.5 2.3
ALPV01-009-025 9 -25 -26.4 -12.92  2 2.8
ALPV01-012-025 12.7 -25 -27 -12.92  3 4.7
ALPV01-012-050 12.7 -50 -52.4 -25.83  3.5 4.3
ALPV01-016-045 16 -45 -47.3 -23.25  3 4.4
ALPV01-020-040 20 -40 -41.4 -20.66  2 4.6
ALPV01-025-050 25 -50 -51.4 -25.83  2 5.2
ALPV01-025-075 25.4 -75 -77 -38.75  3 5.1
ALPV01-025-100 25.4 -100 -102.1 -51.66  3 4.6
ALPV01-025-125 25.4 -125 -127.4 -64.58  3.5 4.8
ALPV01-025-150 25.4 -150 -152.4 -77.49  3.5 4.5
ALPV01-050-100 50 -100 -102.1 -51.66  3 9.5
ALPV01-050-200 50 -200 -202.2 -103.32  3 6.1

*In addition to N-BK7, we also supply CaF2, Fused Silica, ZnSe substrate PCV lenses.
*Custom production is available.