Compare Model Drawings, CAD & Specs Availability Price
Bi-Convex Lens, Fused Silica, 12.7 mm Diameter, 12.7 mm EFL, 650-1000nm
$209
In Stock
In Stock
Bi-Convex Lens, Fused Silica, 12.7 mm Diameter, 25.4 mm EFL, 650-1000nm
$209
In Stock
In Stock
Bi-Convex Lens, Fused Silica, 25.4 mm Diameter, 20.0 mm EFL, 650-1000nm
$209
In Stock
In Stock
Bi-Convex Lens, Fused Silica, 25.4 mm Diameter, 25.4 mm EFL, 650-1000nm
$209
In Stock
In Stock
Bi-Convex Lens, Fused Silica, 25.4 mm Diameter, 32.0 mm EFL, 650-1000nm
$209
In Stock
In Stock
Bi-Convex Lens, Fused Silica, 25.4 mm Diameter, 50.2 mm EFL, 650-1000nm
$209
In Stock
In Stock
Bi-Convex Lens, Fused Silica, 25.4 mm Diameter, 75.6 mm EFL, 650-1000nm
$209
In Stock
In Stock
Bi-Convex Lens, Fused Silica, 25.4 mm Diameter, 100 mm EFL, 650-1000nm
$161
2 Weeks
2 Weeks
Bi-Convex Lens, Fused Silica, 25.4 mm Diameter, 150 mm EFL, 650-1000nm
$156
In Stock
In Stock
Bi-Convex Lens, Fused Silica, 25.4 mm Diameter, 200 mm EFL, 650-1000nm
$142
In Stock
In Stock
Bi-Convex Lens, Fused Silica, 25.4 mm Diameter, 250 mm EFL, 650-1000nm
$142
In Stock
In Stock
Bi-Convex Lens, Fused Silica, 25.4 mm Diameter, 500 mm EFL, 650-1000nm
$142
In Stock
In Stock
Bi-Convex Lens, Fused Silica, 25.4 mm Diameter, 1000 mm EFL, 650-1000nm
$142
In Stock
In Stock
Bi-Convex Lens, Fused Silica, 50.8 mm Diameter, 50.2 mm EFL, 650-1000nm
$515
In Stock
In Stock
Bi-Convex Lens, Fused Silica, 50.8 mm Diameter, 75.6 mm EFL, 650-1000nm
$555
In Stock
In Stock
Bi-Convex Lens, Fused Silica, 50.8 mm Diameter, 100 mm EFL, 650-1000nm
$378
In Stock
In Stock
Bi-Convex Lens, Fused Silica, 50.8 mm Diameter, 150 mm EFL, 650-1000nm
$378
In Stock
In Stock
Bi-Convex Lens, Fused Silica, 50.8 mm Diameter, 200 mm EFL, 650-1000nm
$330
In Stock
In Stock
Bi-Convex Lens, Fused Silica, 50.8 mm Diameter, 250 mm EFL, 650-1000nm
$289
In Stock
In Stock
Bi-Convex Lens, Fused Silica, 50.8 mm Diameter, 500 mm EFL, 650-1000nm
$289
In Stock
In Stock
Bi-Convex Lens, Fused Silica, 50.8 mm Diameter, 1000 mm EFL, 650-1000nm
$289
In Stock
In Stock

Specifications

  • Lens Shape
    Bi-Convex (Double Convex)
  • Lens Material
    UV Fused Silica
  • Antireflection Coating
    650-1000 nm
  • Coating Type
    NIR Multilayer
  • Coating Code
    AR.16
  • Damage Threshold
    7.5 J/cm2, 10 ns pulses, 10 Hz at 1064 nm
  • Surface Quality
    20-10 scratch-dig
  • Surface Flatness
    λ/2
  • 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
  • Center Thickness Tolerance
    ±0.1 mm
  • Clear Aperture
    ≥central 90% of diameter
  • Cleaning

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

Precision Bi-Convex Lens Surfaces

Our precision UV Fused Silica double-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/8 surface irregularity. For more information, refer to the optical surfaces technical note.

Broadband Multilayer NIR Antireflection Coatings

Our broadband AR.16 antireflection coating improves the transmission efficiency of these lenses by reducing surface reflections over a 650-1000 nm wavelength range. The NIR AR multi-layer coating improves the performance over uncoated surfaces. It features a damage threshold of 7.5 J/cm‌2 for 10 ns pulses at 10 Hz and 1064 nm.

Standardized Bi-Convex Focal Lengths

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

Bi-Convex Lens Shape for Focusing

Bi-Convex lenses are the best choice when the object and image are at equal or near equal distance from the lens. When the object and image distance are equal (1:1 magnification), not only is spherical aberration minimized, but also coma, distortion, and chromatic aberration are identically canceled due to the symmetry. Bi-convex lenses function similarly to plano-convex lenses in that they have a positive focal length, and focus parallel rays of light to a point. Both surface are spherical and have the same radius of curvature, thereby minimizing spherical aberration. As a guideline, bi-convex lenses perform within minimum aberration at conjugate ratios between 5:1 and 1:5. Outside this magnification range, plano-convex lenses are usually more suitable.

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.