Compare Model Drawings, CAD & Specs Availability Price
SPX013AR.UF
Plano-Convex Lens, Fused Silica, 12.7 mm, 25.4 mm EFL, 660-1380 nm
$272
In Stock
 SPX013AR.UF Plano-Convex Lens, Fused Silica, 12.7 mm, 25.4 mm EFL, 660-1380 nm
In Stock
 $272
uv fused silica plano-convex lens 1.0 inch (25.4 mm) diameter
SPX016AR.UF
Plano-Convex Lens, Fused Silica, 25.4 mm, 50.2 mm EFL, 660-1380 nm
$282
1 Week
 SPX016AR.UF Plano-Convex Lens, Fused Silica, 25.4 mm, 50.2 mm EFL, 660-1380 nm
1 Week
 $282
uv fused silica plano-convex lens 1.0 inch (25.4 mm) diameter
SPX019AR.UF
Plano-Convex Lens, Fused Silica, 25.4 mm, 75.6 mm EFL, 660-1380 nm
$271
In Stock
 SPX019AR.UF Plano-Convex Lens, Fused Silica, 25.4 mm, 75.6 mm EFL, 660-1380 nm
In Stock
 $271
uv fused silica plano-convex lens 1.0 inch (25.4 mm) diameter
SPX022AR.UF
Plano-Convex Lens, Fused Silica, 25.4 mm, 100 mm EFL, 660-1380 nm
$205
In Stock
 SPX022AR.UF Plano-Convex Lens, Fused Silica, 25.4 mm, 100 mm EFL, 660-1380 nm
In Stock
 $205
uv fused silica plano-convex lens 1.0 inch (25.4 mm) diameter
SPX025AR.UF
Plano-Convex Lens, Fused Silica, 25.4 mm, 150 mm EFL, 660-1380 nm
$206
In Stock
 SPX025AR.UF Plano-Convex Lens, Fused Silica, 25.4 mm, 150 mm EFL, 660-1380 nm
In Stock
 $206
uv fused silica plano-convex lens 1.0 inch (25.4 mm) diameter
SPX028AR.UF
Plano-Convex Lens, Fused Silica, 25.4 mm, 200 mm EFL, 660-1380 nm
$206
In Stock
 SPX028AR.UF Plano-Convex Lens, Fused Silica, 25.4 mm, 200 mm EFL, 660-1380 nm
In Stock
 $206
uv fused silica plano-convex lens 1.0 inch (25.4 mm) diameter
SPX029AR.UF
Plano-Convex Lens, Fused Silica, 25.4 mm, 250 mm EFL, 660-1380 nm
$206
Contact Us
 SPX029AR.UF Plano-Convex Lens, Fused Silica, 25.4 mm, 250 mm EFL, 660-1380 nm
Contact Us
 $206
uv fused silica plano-convex lens 1.0 inch (25.4 mm) diameter
SPX030AR.UF
Plano-Convex Lens, Fused Silica, 25.4 mm, 350 mm EFL, 660-1380 nm
$206
In Stock
 SPX030AR.UF Plano-Convex Lens, Fused Silica, 25.4 mm, 350 mm EFL, 660-1380 nm
In Stock
 $206
uv fused silica plano-convex lens 1.0 inch (25.4 mm) diameter
SPX031AR.UF
Plano-Convex Lens, Fused Silica, 25.4 mm, 500 mm EFL, 660-1380 nm
$200
In Stock
 SPX031AR.UF Plano-Convex Lens, Fused Silica, 25.4 mm, 500 mm EFL, 660-1380 nm
In Stock
 $200
uv fused silica plano-convex lens 1.0 inch (25.4 mm) diameter
SPX034AR.UF
Plano-Convex Lens, Fused Silica, 25.4 mm, 1000 mm EFL, 660-1380 nm
$200
In Stock
 SPX034AR.UF Plano-Convex Lens, Fused Silica, 25.4 mm, 1000 mm EFL, 660-1380 nm
In Stock
 $200

Specifications

  • Lens Shape
    Plano-Convex
  • Lens Material
    UV Fused Silica
  • Antireflection Coating
    660-1380 nm
  • Coating Type
    Ultrafast Optimized Broadband Multilayer
  • Coating Code
    AR.UF
  • Surface Quality
    20-10 scratch-dig
  • Surface Flatness
    λ/8
  • Surface Accuracy, Irregularity
    λ/8
  • Surface Accuracy, Power
    1.5 λ
  • Centration
    ≤3 arc min
  • Chamfers
    0–0.8 mm face width
  • Chamfers Angle/Tolerance
    45° ±15°, typical
  • Focal Length Tolerance
    ±1 %
  • Diameter Tolerance
    +0/-0.1 mm
  • Clear Aperture
    ≥central 90% of diameter
  • Cleaning
    See How to Clean Optics

Features

UV Fused Silica Substrates for UV, Laserline & Broadband Applications

UV Grade Fused Silica is synthetic amorphous silicon dioxide of extremely high purity providing maximum transmission from 195 to 2100 nm. This non-crystalline, colorless silica glass combines a very low thermal expansion coefficient with good optical qualities, and excellent transmittance in the ultraviolet region. Transmission and homogeneity exceed those of crystalline quartz without the problems of orientation and temperature instability inherent in the crystalline form. It will not fluoresce under UV light and is resistant to radiation. For high-energy applications, the extreme purity of fused silica eliminates microscopic defect sites that could lead to laser damage. For more information, refer to our optical materials Technical Note

High Quality Precision Plano-Convex Lens Surfaces

Our ultrafast plano-convex lens UV fused silica substrates are polished to tight tolerances minimizing wavefront distortion. Tight surface quality tolerances minimize scatter and unwanted diffraction effects. These lenses have a 20-10 scratch-dig surface quality, and a λ/8 surface irregularity. For more information, refer to the optical surfaces technical note.

Ultrafast Optimized Antireflection Coating

Our broadband ultrafast optimized antireflection coating is optimized specifically for 660-1380 nm ultrafast laser wavelengths to provide low GVD performance. Typical transmission performance of the AR.UF coating is shown compared to an uncoated lens and our standard AR.16 and AR.18 coatings covering similar wavelengths.

Low Group Velocity Dispersion Performance

The graphs above show the GVD values through a wavelength range of 600 to 1450 nm for a coated lens and an uncoated lens. The graphs show that the AR coating has very little to no impact on the overall GVD performance of the lens. We chose the fused silica lens with the thickest center thickness to evaluate. The theoretical values for GVD contribution from the coating was added to the bulk GVD of fused silica to produce the graph on the left. The graph on the right is simply the GVD of bulk fused silica for the SPX016.

Mounted Version - with Lens Tubes

The lenses can be mounted in LT series lens tube for constructing a complex optical system or quickly connecting to other threaded lens mounts: A-Line™ series fixed lens mount, or adjustable lens positioner (with thread adapter). Use LT-WR series spanner wrench for easy lens installation.

Standardized Plano-Convex Focal Lengths

Standard effective focal lengths across a variety of newport lens sizes, materials and shapes provide a systematic approach allowing for lenses of different sizes to be interchanged without requiring other changes to your optical system. Collimating a point light source coming from the planar surface or focusing a collimated light source which is incident on the curved surface will help to minimize the spherical aberration.

Plano-Convex Lens Shape for Focusing Light

Plano-Convex lenses are the best choice for focusing parallel rays of light to a single point. They can be used to focus, collect and collimate light. The asymmetry of this lens shape minimizes spherical aberration in situations where the object and image are located at unequal distance from the lens. The optimum case is where the object is placed at infinity with parallel rays entering lens and the final image is a focused point.

Focusing a Collimated Laser Beam

For an application example, let’s look at the case of the output from a Newport R-31005 HeNe laser focused to a spot using a KPX043 Plano-Convex Lens. This Hene laser has a beam diameter of 0.63 mm and a divergence of 1.3 mrad. Note that these are beam diameter and full divergence, so in the notation of our figure, y1 = 0.315 mm and θ1 = 0.65 mrad. The KPX043 lens has a focal length of 25.4 mm. Thus, at the focused spot, we have a radius θ1f = 16.5 µm. So, the diameter of the spot will be 33 µm.

Collimating Light from a Point Source

Since a common application is the collimation of the output from an Optical Fiber, let’s use that for our numerical example. The Newport F-MBB fiber has a core diameter of 200 µm and a numerical aperture (NA) of 0.37. The radius y1 of our source is then 100 µm. NA is defined in terms of the half-angle accepted by the fiber, so θ1 = 0.37. If we again use the KPX043 , 25.4 mm focal length lens to collimate the output, we will have a beam with a radius of 9.4 mm and a half-angle divergence of 4 mrad.

Mounting Options

We offer a full range of optical lens mounts to meet various experimental requirements. Below lists the recommended mounts for spherical lenses of standard sizes. Please see our Lens Mount Guide for additional information.

Note: besides the diameter, please check the Edge Thickness (Te) specification of the lens and the lens mount to ensure compatibility before purchasing. 

Lens Diameter LH-A-GRP
A-Line™ Lens Mounts		 LT_Series_group_update
LT Series Lens Tubes		 OM-multi_axis_lens_pos-S
LP Series Lens Positioners		 optics-cage-plus-S
Optics Cage Plus Series
76.2 mm (M-) LH-3A N/A N/A N/A
50.8 mm (M-) LH-2A
LH-2N		 LT20-05
LT20-10
LT20-20
LT20-30		 LP-2A
LP-2A-XY
LP-2A-XYZ		 N/A
38.1 mm (M-) LH-1.5A LT20 lens tube with
LH-2R1.5 adapter		 LP-2 lens positioner with
LPLH-1.5T adapter		 N/A
25.4 mm (M-) LH-1A
LH-1N
LH-1XY
LH-1TZ-A
LH-1TZ		 LT10-05
LT10-10
LT10-20
LT10-30		 LP-1A
LP-1A-XY
LP-1A-XYZ		 OC1-LH1-S
OC1-LH1
OC1-LH1-TZ
OC1-LH1-XY
OC1-LH1-XYA
OC1-LH1-XYC
OC1-LH1-XYZ
12.7 mm (M-) LH-0.5A
LH-05N		 LT05-05
LT05-10		 LP-05A
LP-05A-XY
LP-05A-XYZ		 N/A
6.35 mm LH-05DB with
LH-50R25 adapter		 LT05 lens tube with
LH-50R25 adapter		 LP-05 lens positioner with
LPLH-25T adapter		 N/A

For non-standard sizes not listed above, check out our variable size lens mounts.

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