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25.4mm Dia. x 50.8mm FL, Uncoated, ISP Optics Calcium Fluoride (CaF2) DCX Lens | CF-BX-25-50

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Calcium Fluoride Double-Convex (DCX) Lenses

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Stock #47-057 3-5 days
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S$381.35
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S$381.35
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Diameter (mm):
25.40 +0.00/-0.13
Effective Focal Length EFL (mm):
50.80
Coating:
Uncoated
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
Surface Quality:
60-40
Clear Aperture (%):
90.00
Centering (arcmin):
<3
Bevel:
Protective bevel as needed
Center Thickness CT (mm):
6.20
Center Thickness Tolerance (mm):
±0.2
Edge Thickness ET (mm):
2.00
Radius R1=-R2 (mm):
39.61
Back Focal Length BFL (mm) @ DWL:
48.51
Effective Focal Length EFL @ 0.6328μm (mm):
46.86
Effective Focal Length EFL @ 1.064μm (mm):
47.33
Effective Focal Length EFL @ 2.94μm (mm):
48.47
Effective Focal Length EFL @ 5.0μm (mm):
50.80
f/#:
2.00
Focal Length Specification Wavelength (μm):
5.00
Focal Length Tolerance (%):
±2 @ DWL
Numerical Aperture NA:
0.25
Surface Accuracy:
Type:
Double-Convex Lens
Wavelength Range (μm):
0.35 - 7
Wavelength Range (nm):
350 - 7000
Model Number:
CF-BX-25-50

Regulatory Compliance

RoHS 2015:
Reach 209:
Certificate of Conformance:

Product Family Description

  • Greater than 90% Transmission from 350nm-7μm
  • Low Index of Refraction
  • High Laser Damage Threshold

ISP Optics Calcium Fluoride Double-Convex (DCX) Lenses are ideal for finite imaging applications requiring high transmission in the infrared wavelength spectrum. Calcium Fluoride features greater than 90% transmission from 350nm to 7μm and a low refractive index, allowing it to be used without an antireflective coating. In addition, its low absorption and high damage threshold makes it a popular choice for use with excimer lasers. ISP Optics Calcium Fluoride Double-Convex (DCX) Lenses offer low solubility and superior hardness compared to other fluoride-based substrates, allowing for use in harsh environments.