Compare Model Drawings, CAD & Specs Lens Shape Diameter Effective Focal Length (EFL) F/# Availability Price
Polished Aspheric Lens, Plano-Convex, L-BAL35, 15 mm, 22.5 mm EFL, 430-700 nm
$270
In Stock
Plano-Convex Aspheric 15.0 mm 22.5 mm 1.5
In Stock
Polished Aspheric Lens, Plano-Convex, L-BAL35, 15 mm, 18.75 mm EFL, 430-700 nm
$270
In Stock
Plano-Convex Aspheric 15.0 mm 18.8 mm 1.3
In Stock
Polished Aspheric Lens, Plano-Convex, L-BAL35, 15 mm, 15.0 mm EFL, 430-700 nm
$278
In Stock
Plano-Convex Aspheric 15.0 mm 15.0 mm 1
In Stock
Polished Aspheric Lens, Plano-Convex, L-BAL35, 15 mm, 11.25 mm EFL, 430-700 nm
$292
In Stock
Plano-Convex Aspheric 15.0 mm 11.3 mm 0.8
In Stock
Polished Aspheric Lens, Bi-Convex, L-BAL35, 20 mm, 20.0 mm EFL, 430-700 nm
In Stock
Bi-Convex Aspheric 20.0 mm 20.0 mm 1
In Stock
Polished Aspheric Lens, Bi-Convex, L-BAL35, 20 mm, 15.0 mm EFL, 430-700 nm
In Stock
Bi-Convex Aspheric 20.0 mm 15.0 mm 0.8
In Stock
Polished Aspheric Lens, Plano-Convex, L-BAL35, 25 mm, 37.5 mm EFL, 430-700 nm
$308
In Stock
Plano-Convex Aspheric 25.0 mm 37.5 mm 1.5
In Stock
Polished Aspheric Lens, Plano-Convex, L-BAL35, 25 mm, 31.25 mm EFL, 430-700 nm
$308
In Stock
Plano-Convex Aspheric 25.0 mm 31.3 mm 1.3
In Stock
Polished Aspheric Lens, Plano-Convex, L-BAL35, 25 mm, 25.0 mm EFL, 430-700 nm
$322
In Stock
Plano-Convex Aspheric 25.0 mm 25.0 mm 1
In Stock
Polished Aspheric Lens, Plano-Convex, L-BAL35, 25 mm, 18.75 mm EFL, 430-700 nm
$335
In Stock
Plano-Convex Aspheric 25.0 mm 18.8 mm 0.8
In Stock
Polished Aspheric Lens, Bi-Convex, L-BAL35, 30 mm, 30.0 mm EFL, 430-700 nm
In Stock
Bi-Convex Aspheric 30.0 mm 30.0 mm 1
In Stock
Polished Aspheric Lens, Bi-Convex, L-BAL35, 30 mm, 22.5 mm EFL, 430-700 nm
In Stock
Bi-Convex Aspheric 30.0 mm 22.5 mm 0.8
In Stock
Polished Aspheric Lens, Bi-Convex, L-BAL35, 40 mm, 40.0 mm EFL, 430-700 nm
In Stock
Bi-Convex Aspheric 40.0 mm 40.0 mm 1
In Stock
Polished Aspheric Lens, Bi-Convex, L-BAL35, 40 mm, 30.0 mm EFL, 430-700 nm
In Stock
Bi-Convex Aspheric 40.0 mm 30.0 mm 0.8
In Stock
Polished Aspheric Lens, Bi-Convex, L-BAL35, 50 mm, 50.0 mm EFL, 430-700 nm
$618
In Stock
Bi-Convex Aspheric 50.0 mm 50.0 mm 1
In Stock
Polished Aspheric Lens, Bi-Convex, L-BAL35, 50 mm, 37.5 mm EFL, 430-700 nm
$632
In Stock
Bi-Convex Aspheric 50.0 mm 37.5 mm 0.8
In Stock

Specifications

  • Lens Type
    Precision Polished Aspheric Lens
  • 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
  • Lens Material
    L-BAL 35 (589/611)
  • Surface Quality
    60-40 scratch-dig
  • Surface Accuracy
    0.75 µm RMS
  • Diameter Tolerance
    +0.0/-0.1 mm
  • Center Thickness Tolerance
    ±0.1 mm
  • Clear Aperture
    90% of central diameter

Features

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.

Advantages of Aspheric Lenses

In applications that require large acceptance angles, such as light gathering for illumination, spherical lenses are unsuitable due to spherical aberration, or the effect of refractive power of a spherical surface becoming greater with increasing aperture. Aspheric lenses maintain constant focal length or very high NA, avoiding the need for multiple elements to correct spherical aberration. This simplifies system design by reducing weight and component count. It also results in less transmission loss, and less ghosting due to having fewer surfaces. The primary drawback of an aspheric lens is off-axis performance is poor. This is not a problem for coupling to and from optical fibers or collimating light sources, but aspheric lenses are not usable over a wide field of view.

Efficiently Focus or Collect Light

Our Precision Aspheric Lenses have diffraction limited performance on axis, and are available in a range of high numerical apertures. They are ideal for applications such as coupling light into and out of optical fibers, efficiently collecting output from optical sources, or focusing beams onto small high speed detectors.

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.

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.