Plano-Convex Lens, Fused Silica, 25.4 mm, 1000 mm EFL, AR.1 coated

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

The SPX034AR.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 1000.0 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
15J/cm² with 20 nsec pulses @1064 nm, 10 Hz
Surface Quality
15-5 scratch-dig
Surface Flatness
λ/10
Surface Accuracy, Irregularity
λ/8
Surface Accuracy, Power
1.5 λ
F/#
39.4
Effective Focal Length (EFL)
1000 mm
Back Focal Length (BFL)
997.82 mm

Radius of Curvature (R)
459.000 mm
Edge Thickness (Te)
3.0 mm
Center Thickness (Tc)
3.176 mm
Design Wavelength
589 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
15J/cm² with 20 nsec pulses @1064 nm, 10 Hz
Surface Quality
15-5 scratch-dig
Surface Flatness
λ/10
Surface Accuracy, Irregularity
λ/8
Surface Accuracy, Power
1.5 λ
F/#
39.4
Effective Focal Length (EFL)
1000 mm
Back Focal Length (BFL)
997.82 mm

Radius of Curvature (R)
459.000 mm
Edge Thickness (Te)
3.0 mm
Center Thickness (Tc)
3.176 mm
Design Wavelength
589 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

Drawings And Cad

PLANOCO1 VEX-S(89.6 kB, PDF)

Other

SPX034AR.1 RoHS Certificate(705.7 kB, PDF)
AR.1 Raw Data.xlsx(57.4 kB, XLSX)

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