Plano-Convex Lens, Fused Silica, 25.4 mm, 50 mm EFL, AR.1 coated

uv fused silica plano-convex lens 1.0 inch (25.4 mm) diameter

The SPX061AR.1 High Energy Fused Silica Lens is an AR.1 coated (at 1064 nm), 1 inch (25.4 mm) diameter, HPFS 7978 plano-convex lens with an effective focal length of 50.0 mm at 546.1 nm. It is designed for high frequency laser pulses where standard grade fused silica does not perform very well. The special grade fused silica Corning HPFS 7978 has very low hydroxyl molecule presence compared to standard fused silica material, which results in less absorption of laser light and greatly reducing the chances of internal damage.

Specifications

Technical Specs

Lens Shape
Plano-Convex
Diameter
25.4 mm
Lens Material
HPFS 7978
Antireflection Coating
1064 nm
Coating Code
AR.1
Reflectance
R_avg<0.25% @ 1064 nm
Damage Threshold
15 J/cm², 20 nsec pulses, 10 Hz at 1064 nm
Surface Quality
15-5 scratch-dig
Surface Flatness
λ/10
Surface Accuracy, Irregularity
λ/8
Surface Accuracy, Power
1.5 λ
F/#
2

Back Focal Length (BFL)
45.89 mm
Radius of Curvature (R)
23.004 mm
Edge Thickness (Te)
3.0 mm
Center Thickness (Tc)
6.00 mm
Design Wavelength
546.1 nm
Chamfers
0–0.8 mm face width
Chamfers Angle/Tolerance
45° ±15°, typical
Focal Length Tolerance
±1 %
Diameter Tolerance
+0/-0.1 mm
Center Thickness Tolerance
±0.1 mm
Clear Aperture
≥central 90% of diameter
Cleaning
See How to Clean Optics

Lens Shape
Plano-Convex
Diameter
25.4 mm
Lens Material
HPFS 7978
Antireflection Coating
1064 nm
Coating Code
AR.1
Reflectance
R_avg<0.25% @ 1064 nm
Damage Threshold
15 J/cm², 20 nsec pulses, 10 Hz at 1064 nm
Surface Quality
15-5 scratch-dig
Surface Flatness
λ/10
Surface Accuracy, Irregularity
λ/8
Surface Accuracy, Power
1.5 λ
F/#
2

Back Focal Length (BFL)
45.89 mm
Radius of Curvature (R)
23.004 mm
Edge Thickness (Te)
3.0 mm
Center Thickness (Tc)
6.00 mm
Design Wavelength
546.1 nm
Chamfers
0–0.8 mm face width
Chamfers Angle/Tolerance
45° ±15°, typical
Focal Length Tolerance
±1 %
Diameter Tolerance
+0/-0.1 mm
Center Thickness Tolerance
±0.1 mm
Clear Aperture
≥central 90% of diameter
Cleaning
See How to Clean Optics

Resources & Downloads

3D Product Models

2D Product Drawings

PLANOCO1 VEX-S(89.6 kB, PDF)

Other

SPX061AR.1 RoHS Certificate(705.4 kB, PDF)
AR.1 Raw Data.xlsx(57.4 kB, XLSX)

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