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Products / Optics / Optical Lenses / Double-Concave Lenses / VIS-NIR Coated Double-Concave (DCV) Lenses
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TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More
12mm Dia. x -24mm FL, VIS-NIR Coated, Double-Concave Lens

Stock #48-701
$38.50
×
Qty 1-9
$38.50
Qty 10
$34.70
Volume Pricing
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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:
Rabs ≤0.25% @ 880nm
Ravg ≤1.25% @ 400 - 870nm
Ravg ≤1.25% @ 890 - 1000nm
Substrate:
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):
<1
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 201:
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.

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