Cylindrical Lens, Plano-Concave, N-BK7, 25.4x6.35mm, -6.4mm FL, Uncoated

Uncoated N-BK7 Plano-Concave Cylindrical Lenses

The CKV006 Plano-Concave Cylindrical Lens is an uncoated, 1 inch (25.4 mm) length by 1/4 inch (6.35 mm) width, N-BK7 plano-concave cylindrical lens with an effective focal length of -6.4 mm. It is designed to meet the demanding requirements of laser electro-optic applications. Newport's N-BK7 precision cylindrical lenses are manufactured from fine annealed optical glass and are polished to tight tolerances to ensure minimum wavefront distortion.

Specifications

Technical Specs

Lens Type
Cylindrical
Lens Shape
Plano-Concave
Size
25.4 x 6.35 mm
Center Thickness (Tc)
6.0 mm
Edge Thickness (Te)
7.36 mm
Lens Material
Grade A N-BK7
Antireflection Coating
Uncoated
Surface Quality
40-20 scratch-dig
Surface Flatness
λ/2-λ/4
Surface Accuracy, Irregularity, X Axis
≤λ/4 per cm
Surface Accuracy, Irregularity, Y Axis
≤λ/2
Effective Focal Length (EFL)
-6.4 mm
Back Focal Length (BFL)
-10.96 mm
Thickness
6.0 mm
Centration
<3 arc min

Principal Plane 2 (P2)
-3.96 mm
Radius of Curvature (R)
-3.310 mm
Size Tolerance
±0.1 mm
Focal Length Tolerance
± 2.0%
Center Thickness Tolerance
+0.5/-0.25 mm
Edge Thickness Tolerance
±0.3 mm
Wedge
<1 mrad in X axis
Clear Aperture
≥central 80% of dimensions
Chamfers
0.5 mm face width
Chamfers Angle/Tolerance
45°, typical
f/Y
-1
Cleaning
See How to Clean Optics

Lens Type
Cylindrical
Lens Shape
Plano-Concave
Size
25.4 x 6.35 mm
Center Thickness (Tc)
6.0 mm
Edge Thickness (Te)
7.36 mm
Lens Material
Grade A N-BK7
Antireflection Coating
Uncoated
Surface Quality
40-20 scratch-dig
Surface Flatness
λ/2-λ/4
Surface Accuracy, Irregularity, X Axis
≤λ/4 per cm
Surface Accuracy, Irregularity, Y Axis
≤λ/2
Effective Focal Length (EFL)
-6.4 mm
Back Focal Length (BFL)
-10.96 mm
Thickness
6.0 mm
Centration
<3 arc min

Principal Plane 2 (P2)
-3.96 mm
Radius of Curvature (R)
-3.310 mm
Size Tolerance
±0.1 mm
Focal Length Tolerance
± 2.0%
Center Thickness Tolerance
+0.5/-0.25 mm
Edge Thickness Tolerance
±0.3 mm
Wedge
<1 mrad in X axis
Clear Aperture
≥central 80% of dimensions
Chamfers
0.5 mm face width
Chamfers Angle/Tolerance
45°, typical
f/Y
-1
Cleaning
See How to Clean Optics

Resources & Downloads

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