eo_logo
 
Product added to cart
TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More

NIR II Coated Double-Concave (DCV) Lenses

×
  • AR Coated to Provide <0.7% Reflectance per Surface for 750 - 1550nm
  • Double-Concave Lenses Have Two Inward Curved Surfaces and a Negative Focal Length
  • Used for Image Reduction and to Spread Light
  • Various Coating Options: Uncoated, VIS-EXTMgF2, VIS 0°, VIS-NIR, and NIR I

TECHSPEC® NIR II Coated Double-Concave (DCV) Lenses are designed to have two inward curved surfaces and a negative focal length similar to Plano-Concave (PCV) lenses. These lenses can be used for balancing aberrations created by other lenses within a system due to their negative spherical aberration. Double-Concave (DCV) lenses are commonly used in a variety of applications including image reduction, beam expansion and telescopes. TECHSPEC® NIR II Coated Double-Concave (DCV) Lenses offer optimal performance in the 750nm to 1550nm range.  These lenses are also available in Uncoated, VIS-EXTMgF2VIS 0°VIS-NIR, or with NIR I AR coating options.

Common Specifications

Coating:
NIR II (750-1550nm)
Wavelength Range (nm):
750 - 1550
Coating Specification:
Rabs ≤1.5% @ 750 - 800nm
Rabs ≤1.0% @ 800 - 1550nm
Ravg ≤0.7% @ 750 - 1550nm
Focal Length Specification Wavelength (nm):
587.6
Focal Length Tolerance (%):
±1.00
Surface Quality:
40-20
Power (P-V) @ 632.8nm:
1.5λ
Irregularity (P-V) @ 632.8nm:
λ/4

Products

Dia. (mm) EFL (mm) BFL (mm)  Coating   Substrate   Compare   Stock Number   Price  Buy
6.00 -6.00 -6.41 NIR II (750-1550nm)
Other Coating Options
×
N-SF11
6.00 -9.00 -9.32 NIR II (750-1550nm)
Other Coating Options
×
N-BK7
6.00 -12.00 -12.33 NIR II (750-1550nm)
Other Coating Options
×
N-BK7
9.00 -9.00 -9.61 NIR II (750-1550nm)
Other Coating Options
×
N-SF11
9.00 -12.00 -12.41 NIR II (750-1550nm)
Other Coating Options
×
N-SF11
9.00 -18.00 -18.49 NIR II (750-1550nm)
Other Coating Options
×
N-BK7
12.00 -12.00 -12.81 NIR II (750-1550nm)
Other Coating Options
×
N-SF11
12.00 -18.00 -18.65 NIR II (750-1550nm)
Other Coating Options
×
N-BK7
12.00 -24.00 -24.65 NIR II (750-1550nm)
Other Coating Options
×
N-BK7
20.00 -20.00 -20.55 NIR II (750-1550nm)
Other Coating Options
×
N-SF11
25.00 -25.00 -25.69 NIR II (750-1550nm)
Other Coating Options
×
N-SF11
25.00 -50.00 -50.82 NIR II (750-1550nm)
Other Coating Options
×
N-BK7
25.00 -100.00 -101.64 NIR II (750-1550nm)
Other Coating Options
×
N-BK7

Technical Information

Related Products

Custom

Edmund Optics offers comprehensive custom manufacturing services for optical and imaging components tailored to your specific application requirements. Whether in the prototyping phase or preparing for full-scale production, we provide flexible solutions to meet your needs. Our experienced engineers are here to assist—from concept to completion.

Our capabilities include:

  • Custom dimensions, materials, coatings, and more
  • High-precision surface quality and flatness
  • Tight tolerances and complex geometries
  • Scalable production—from prototype to volume

Learn more about our custom manufacturing capabilities or submit an inquiry here.