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All Products / Optics / Optical Lenses / Plano-Concave Lenses / YAG-BBAR Coated Plano-Concave (PCV) Lenses
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TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More

50.0mm Dia. x -100 FL, YAG-BBAR, Plano-Concave Lens

Any of our lenses with a diameter of 5mm or greater can be specified with blackened edges. To specify the blackening, simply append a –INK to the BBAR coated stock number.
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Stock #21-322 In Stock
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$72.50
Qty 1-9
$72.50
Qty 10+
$65.25
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Diameter (mm):
50.00
Effective Focal Length EFL (mm):
-100.00
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
N-BK7
f/#:
2.00
Numerical Aperture NA:
0.25
Coating:
YAG-BBAR (500-1100nm)
Type:
Plano-Concave Lens
Wavelength Range (nm):
500 - 1100
Back Focal Length BFL (mm):
-103.30
Bevel:
Protective bevel as needed
Center Thickness CT (mm):
5.00 ±0.10
Centering (arcmin):
<1
Clear Aperture CA (mm):
49.00
Coating Specification:
Rabs <0.25% @ 532nm
Rabs <0.25% @ 1064nm
Ravg <1.0% @ 500 - 1100nm
Edge Thickness ET (mm):
11.23
Focal Length Specification Wavelength (nm):
587.6
Focal Length Tolerance (%):
±1
Radius R1 (mm):
-51.68
Surface Quality:
40-20
Damage Threshold, By Design: Damage threshold for optical components varies by substrate material and coating. Click here to learn more about this specification.
5 J/cm2 @ 532nm, 10ns
Power (P-V) @ 632.8nm:
1.5λ
Irregularity (P-V) @ 632.8nm:
λ/4

Regulatory Compliance

RoHS 2015:
Compliant
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Certificate of Conformance:
View
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Reach 235:
Compliant
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Product Family Description

  • Negative Focal Lengths for Beam Expansion or Light Projection Applications
  • Optimized for R<0.25% at both 532nm and 1064nm
  • AR Coated to Provide <1.0% Reflectance per Surface for 500 - 1100nm
  • Various Coating Options: Uncoated, VIS-EXT, MgF2, VIS 0°, VIS-NIR, NIR I, NIR II, and 1064nm V-Coat

TECHSPEC® YAG-BBAR Coated Plano-Concave (PCV) Lenses are designed to bend parallel input rays to diverge from one another on the output side of the lens causing this lens to have a negative focal length. These lenses can be used for balancing aberrations created by other lenses within a system due to their negative spherical aberration. Plano-Concave (PCV) lenses are commonly used in a variety of applications including image reduction, beam expansion and telescopes. TECHSPEC® YAG-BBAR Coated Plano-Concave (PCV) Lenses feature less than 0.25% reflection at common Nd:YAG laser wavelengths of 532nm and 1064nm. These lenses are also available Uncoated, VIS-EXT, MgF2, VIS 0°, VIS-NIR, NIR I, or with NIR II AR coating options.