12mm Dia. x -24mm FL, VIS-NIR Coated, Double-Concave Lens

Diameter (mm):

12.00 +0.0/-0.025

Effective Focal Length EFL (mm):

-24.00

Back Focal Length BFL (mm):

-24.65

Coating:

VIS-NIR (400-1000nm)

Coating Specification:

R_abs ≤0.25% @ 880nm
R_avg ≤1.25% @ 400 - 870nm
R_avg ≤1.25% @ 890 - 1000nm

N-BK7

Surface Quality:

40-20

Power (P-V) @ 632.8nm:

1.5λ

Irregularity (P-V) @ 632.8nm:

λ/4

Clear Aperture CA (mm):

11.00

Center Thickness CT (mm):

2.00

Center Thickness Tolerance (mm):

±0.05

Centering (arcmin):

Bevel:

Protective bevel as needed

Edge Thickness ET (mm):

3.31

f/#:

2.00

Focal Length Specification Wavelength (nm):

587.6

Focal Length Tolerance (%):

±1

Numerical Aperture NA:

0.25

Radius R₁=-R₂ (mm):

-25.14

Type:

Double-Concave Lens

Typical Energy Density Limit:

5 J/cm² @ 532nm, 10ns

Wavelength Range (nm):

400 - 1000

Regulatory Compliance

RoHS 2015:

Compliant

Reach 211:

Compliant

Product Family Description

AR Coated to Provide <1.25% Reflectance per Surface for 400 - 1000nm
<0.25% Reflectance @ 880nm
Designed for 0° Angle of Incidence
Various Coating Options: Uncoated, MgF₂, VIS 0°, NIR I, and NIR II

Double-Concave (DCV) Lenses have two inward curved surfaces and a negative focal length. They are used for image reduction and to spread light.

12mm Dia. x -24mm FL, VIS-NIR Coated, Double-Concave Lens

Regulatory Compliance

Product Family Description

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