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TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More

6mm Dia. x -12mm FL, Uncoated, Double-Concave Lens

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Stock #48-681 Other Coating Options
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$27.00
Qty 1-9
$27.00
Qty 10+
$24.30
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Diameter (mm):
6.00 +0.0/-0.025
Effective Focal Length EFL (mm):
-12.00
Back Focal Length BFL (mm):
-12.33
Coating:
Uncoated
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
Surface Quality:
40-20
Power (P-V) @ 632.8nm:
1.5λ
Irregularity (P-V) @ 632.8nm:
λ/4
Clear Aperture CA (mm):
5.4
Center Thickness CT (mm):
1.00
Center Thickness Tolerance (mm):
±0.05
Centering (arcmin):
<1
Bevel:
Protective bevel as needed
Edge Thickness ET (mm):
1.59
f/#:
2.00
Focal Length Specification Wavelength (nm):
587.6
Focal Length Tolerance (%):
±1
Numerical Aperture NA:
0.25
Radius R1=-R2 (mm):
-12.57
Type:
Double-Concave Lens
Wavelength Range (nm):
350 - 2200

Regulatory Compliance

RoHS 2015:
Reach 219:
Certificate of Conformance:

Product Family Description

  • Wavelength Range of 350-2200nm
  • Precision Diameter and Centration Tolerances Allow for Easy OEM Integration
  • Wide Variety of Diameters and Focal Lengths
  • Additional AR Coating Options Available: MgF2, VIS 0°, VIS-NIR, 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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