Compare Model Drawings, CAD & Specs Availability Price
SPC010AR.14
Plano-Concave Lens, Fused Silica, 6.35 mm, -12.5 mm EFL, 430-700 nm
$176
In Stock
 SPC010AR.14 Plano-Concave Lens, Fused Silica, 6.35 mm, -12.5 mm EFL, 430-700 nm
In Stock
 $176
SPC013AR.14
Plano-Concave Lens, Fused Silica, 12.7 mm, -25 mm EFL, 430-700 nm
$176
In Stock
 SPC013AR.14 Plano-Concave Lens, Fused Silica, 12.7 mm, -25 mm EFL, 430-700 nm
In Stock
 $176
SPC016AR.14
Plano-Concave Lens, Fused Silica, 25.4 mm, -1000 mm EFL, 430-700 nm
$141
In Stock
 SPC016AR.14 Plano-Concave Lens, Fused Silica, 25.4 mm, -1000 mm EFL, 430-700 nm
In Stock
 $141
SPC019AR.14
Plano-Concave Lens, Fused Silica, 25.4 mm, -250 mm EFL, 430-700 nm
$138
In Stock
 SPC019AR.14 Plano-Concave Lens, Fused Silica, 25.4 mm, -250 mm EFL, 430-700 nm
In Stock
 $138
SPC022AR.14
Plano-Concave Lens, Fused Silica, 25.4 mm, -200 mm EFL, 430-700 nm
$140
In Stock
 SPC022AR.14 Plano-Concave Lens, Fused Silica, 25.4 mm, -200 mm EFL, 430-700 nm
In Stock
 $140
SPC025AR.14
Plano-Concave Lens, Fused Silica, 25.4 mm, -150 mm EFL, 430-700 nm
$140
4 Weeks
 SPC025AR.14 Plano-Concave Lens, Fused Silica, 25.4 mm, -150 mm EFL, 430-700 nm
4 Weeks
 $140
SPC028AR.14
Plano-Concave Lens, Fused Silica, 25.4 mm, -100 mm EFL, 430-700 nm
$140
In Stock
 SPC028AR.14 Plano-Concave Lens, Fused Silica, 25.4 mm, -100 mm EFL, 430-700 nm
In Stock
 $140
SPC031AR.14
Plano-Concave Lens, Fused Silica, 25.4 mm, -75 mm EFL, 430-700 nm
$140
In Stock
 SPC031AR.14 Plano-Concave Lens, Fused Silica, 25.4 mm, -75 mm EFL, 430-700 nm
In Stock
 $140
SPC034AR.14
Plano-Concave Lens, Fused Silica, 25.4 mm, -50 mm EFL, 430-700 nm
$140
In Stock
 SPC034AR.14 Plano-Concave Lens, Fused Silica, 25.4 mm, -50 mm EFL, 430-700 nm
In Stock
 $140
SPC037AR.14
Plano-Concave Lens, Fused Silica, 50.8 mm, -1000 mm EFL, 430-700 nm
$387
In Stock
 SPC037AR.14 Plano-Concave Lens, Fused Silica, 50.8 mm, -1000 mm EFL, 430-700 nm
In Stock
 $387
SPC040AR.14
Plano-Concave Lens, Fused Silica, 50.8 mm, -500 mm EFL, 430-700 nm
$374
In Stock
 SPC040AR.14 Plano-Concave Lens, Fused Silica, 50.8 mm, -500 mm EFL, 430-700 nm
In Stock
 $374
SPC043AR.14
Plano-Concave Lens, Fused Silica, 50.8 mm, -250 mm EFL, 430-700 nm
$442
In Stock
 SPC043AR.14 Plano-Concave Lens, Fused Silica, 50.8 mm, -250 mm EFL, 430-700 nm
In Stock
 $442
SPC046AR.14
Plano-Concave Lens, Fused Silica, 50.8 mm, -200 mm EFL, 430-700 nm
$503
In Stock
 SPC046AR.14 Plano-Concave Lens, Fused Silica, 50.8 mm, -200 mm EFL, 430-700 nm
In Stock
 $503
SPC049AR.14
Plano-Concave Lens, Fused Silica, 50.8 mm, -150 mm EFL, 430-700 nm
$560
Contact Us
 SPC049AR.14 Plano-Concave Lens, Fused Silica, 50.8 mm, -150 mm EFL, 430-700 nm
Contact Us
 $560
SPC052AR.14
Plano-Concave Lens, Fused Silica, 50.8 mm, -100 mm EFL, 430-700 nm
$599
In Stock
 SPC052AR.14 Plano-Concave Lens, Fused Silica, 50.8 mm, -100 mm EFL, 430-700 nm
In Stock
 $599

Specifications

  • Lens Shape
    Plano-Concave
  • Lens Material
    UV Fused Silica
  • Antireflection Coating
    430-700 nm
  • Coating Type
    Visible Multilayer
  • Coating Code
    AR.14
  • Damage Threshold
    7.5 J/cm2, 10 ns pulses, 10 Hz at 532 nm
  • Surface Quality
    20-10 scratch-dig
  • Surface Flatness
    λ/2
  • Surface Accuracy, Irregularity
    λ/4
  • 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
  • Center Thickness Tolerance
    ±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 precision UV Fused Silica plano-convex lenses 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/4 surface irregularity. For more information, refer to the optical surfaces technical note.

AR.14 Broadband Visible Antireflection Coating

Our AR.14 broadband multilayer antireflection coating markedly improves the transmission efficiency of these lenses by reducing surface reflections over a 430-700 nm wavelength range. This visible AR coating performs effectively for multiple visible wavelengths and tunable lasers eliminating the need for several sets of optics.

Standardized Plano-Concave Focal Lengths

Standard effective focal lengths on our plano-concave lenses provide a systematic approach allowing for lenses of different sizes and materials to be interchanged without requiring other changes to your optical system.

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.

Expanding a Laser Beam with a Plano-Concave Lens

As an application example, consider a Newport R-31005 HeNe Laser with beam diameter 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. To expand this beam ten times while reducing the divergence by a factor of ten, we could select a plano-concave lens KPC043 with f1 = -25 mm and a plano-convex lens KPX109 with f2 = 250 mm. Since real lenses differ in some degree from thin lenses, the spacing between the pair of lenses is actually the sum of the back focal lengths BFL1 + BFL2 = -26.64 mm + 247.61 mm = 220.97 mm.

The expanded beam diameter is: 2y3 = 2y1f2/|-f1| = 2(0.315 mm)(250 mm)/|-25 mm|= 6.3 mm. 

The divergence angle is: θ3 = θ1|-f1|/f2 = (0.65 mrad)|-25 mm|/250 mm = 0.065 mrad.

For minimal aberrations, it is best to use a plano-concave lens for the negative lens and a plano-convex lens for the positive lens with the plano surfaces facing each other. To further reduce aberrations, only the central portion of the lens should be illuminated, so choosing oversized lenses is often a good idea. This style of beam expander is called Galilean.

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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