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

9.0mm Dia. x -9 FL, YAG-BBAR, Plano-Concave Lens

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Stock #21-306 New
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C$54.34
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C$54.34
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C$47.93
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Specifications

Diameter (mm):
9.00
Effective Focal Length EFL (mm):
-9.00
Back Focal Length BFL (mm):
-10.21
Coating:
YAG-BBAR (500-1100nm)
Coating Specification:
Rabs <0.25% @ 532nm
Rabs <0.25% @ 1064nm
Ravg <1.0% @ 500 - 1100nm
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
Center Thickness CT (mm):
2.25 ±0.05
Focal Length Tolerance (%):
±1
Focal Length Specification Wavelength (nm):
587.6
Centering (arcmin):
<3
Clear Aperture CA (mm):
8.1
Edge Thickness ET (mm):
3.63
f/#:
1.00
Numerical Aperture NA:
0.50
Radius R1=-R2 (mm):
-7.07
Bevel:
Protective bevel as needed
Type:
Plano-Concave Lens
Typical Energy Density Limit:
5 J/cm2 @ 532nm, 10ns
Wavelength Range (nm):
500 - 1100

Regulatory Compliance

RoHS 2015:
Reach 224:

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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: UncoatedMgF2, VIS 0°, VIS-NIR, NIR I, NIR II, and 1064nm V-Coat

TECHSPEC® YAG-BBAR Coated Plano-Concave (PCV) Lenses consist of one flat surface and one inward curved surface. This shape factor of lens results in a negative focal length. 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.

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