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25.0mm Dia. x -35 FL, Uncoated, Plano-Concave Lens

TECHSPEC Uncoated Plano-Concave (PCV) Lenses

TECHSPEC Uncoated Plano-Concave (PCV) Lenses 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 #48-680 3-5 days
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Other Coating Options
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S$45.75
Qty 1-9
S$45.75
Qty 10+
S$41.25
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Diameter (mm):
25.00 +0.0/-0.025
Effective Focal Length EFL (mm):
-35.00
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
f/#:
1.4
Numerical Aperture NA:
0.36
Coating:
Uncoated
Type:
Plano-Concave Lens
Wavelength Range (nm):
400 - 2500
Back Focal Length BFL (mm):
-36.96
Bevel:
Protective bevel as needed
Center Thickness CT (mm):
3.50
Center Thickness Tolerance (mm):
±0.10
Centering (arcmin):
<1
Clear Aperture CA (mm):
24.00
Edge Thickness ET (mm):
6.36
Focal Length Specification Wavelength (nm):
587.6
Focal Length Tolerance (%):
±1
Radius R1 (mm):
-27.47
Surface Quality:
40-20
Power (P-V) @ 632.8nm:
1.5λ
Irregularity (P-V) @ 632.8nm:
λ/4

Regulatory Compliance

RoHS 2015:
Reach 219:
Certificate of Conformance:

Product Family Description

  • Wavelength Range of 400-2200nm
  • Precision Diameter and Centration Tolerances Allow for Easy OEM Integration
  • Wide Variety of Diameters, Focal Lengths, and Coatings
  • Anti-Reflection Coating Options: VIS-EXTMgF2, VIS 0°, VIS-NIR, YAG-BBARNIR I, and NIR II

TECHSPEC® Uncoated 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® Uncoated Plano-Concave (PCV) Lenses offer optimal performance in the 350nm to 2200nm range.  These lenses are also available VIS-EXTMgF2VIS 0°VIS-NIRYAG-BBARNIR I, or with NIR II AR coating options.