Plano-Convex Lens, Calcium Fluoride, 25.4 mm, 50 mm FL, 180-8000 nm

The CAPX11 is a Plano-Convex Infrared Lens, made of CaF₂ material. It has a diameter of 25.4 mm, and an effective focal length of 50.0 mm. Calcium Fluoride lenses are an excellent choice of material for making lenses for UV to NIR wavelengths (180 nm - 8 μm). It has high average transmission and low chromatic aberration compared to various IR materials. In NIR regime, CaF₂ exhibits very low GVD which makes it suitable for applications using femtosecond IR pulses.

Specifications

Technical Specs

Lens Shape
Plano-Convex
Diameter
25.4 mm
Lens Material
CaF₂
Antireflection Coating
Uncoated
Surface Quality
40-20 scratch-dig
Surface Accuracy, Irregularity
λ/4 at 633 nm
F/#
1.97
Effective Focal Length (EFL)
50.0 mm
Radius of Curvature (R)
20.912

Edge Thickness (Te)
0.70 mm
Center Thickness (Tc)
5.0 mm
Design Wavelength
2.94 µm
Centration
≤3 arc min
Diameter Tolerance
+0/-0.12 mm
Center Thickness Tolerance
±0.12 mm
Clear Aperture
≥central 90% of diameter

Lens Shape
Plano-Convex
Diameter
25.4 mm
Lens Material
CaF₂
Antireflection Coating
Uncoated
Surface Quality
40-20 scratch-dig
Surface Accuracy, Irregularity
λ/4 at 633 nm
F/#
1.97
Effective Focal Length (EFL)
50.0 mm
Radius of Curvature (R)
20.912

Edge Thickness (Te)
0.70 mm
Center Thickness (Tc)
5.0 mm
Design Wavelength
2.94 µm
Centration
≤3 arc min
Diameter Tolerance
+0/-0.12 mm
Center Thickness Tolerance
±0.12 mm
Clear Aperture
≥central 90% of diameter

Resources & Downloads

Other

CAPX11 RoHS Certificate(264.3 kB, PDF)
CAPX11_ROHS2-2021.pdf(281.5 kB, PDF)

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