Compare Model Drawings, CAD & Specs Lens Shape Diameter Effective Focal Length (EFL) Numerical Aperture Availability Price
$111
In Stock
Bi-Convex Aspheric 5.42 mm 4.47 mm 0.47
In Stock
$99
In Stock
Bi-Convex Aspheric 6.35 mm 3.89 mm 0.55
In Stock
$99
In Stock
Bi-Convex Aspheric 7.2 mm 6.24 mm 0.4
In Stock
$99
In Stock
Bi-Convex Aspheric 3.0 mm 2.00 mm 0.5
In Stock
$99
In Stock
Bi-Convex Aspheric 4.0 mm 2.72 mm 0.55
In Stock
$99
In Stock
Bi-Convex Aspheric 4.7 mm 6.16 mm 0.3
In Stock
$99
In Stock
Plano-Convex Aspheric 7.2 mm 11.0 mm 0.25
In Stock
$99
In Stock
Bi-Convex Aspheric 6.35 mm 4.51 mm 0.55
In Stock
$99
In Stock
Bi-Convex Aspheric 9.9 mm 8.0 mm 0.5
In Stock
$99
In Stock
Plano-Convex Aspheric 6.5 mm 15.29 mm 0.16
In Stock
$99
In Stock
Plano-Convex Aspheric 6.5 mm 18.4 mm 0.15
In Stock
$99
In Stock
Bi-Convex Aspheric 6.35 mm 3.10 mm 0.68
In Stock
$99
In Stock
Bi-Convex Aspheric 6.35 mm 4.03 mm 0.64
In Stock
$99
In Stock
Bi-Convex Aspheric 4.7 mm 4.50 mm 0.42
In Stock
$99
In Stock
Plano-Convex Aspheric 4.0 mm 2.75 mm 0.64
In Stock
$99
In Stock
Plano-Convex Aspheric 2.0 mm 5.00 mm 0.15
In Stock
$99
In Stock
Bi-Convex Aspheric 4.7 mm 2.95 mm 0.53
In Stock
$99
In Stock
Plano-Convex Aspheric 6.35 mm 13.86 mm 0.18
In Stock
$99
In Stock
Plano-Convex Aspheric 4.0 mm 2.97 mm 0.6
In Stock
$99
In Stock
Plano-Convex Aspheric 6.35 mm 4.00 mm 0.6
In Stock

Specifications

  • Lens Type
    Molded Glass Aspheric
  • Antireflection Coating
    350-700 nm
  • Coating Code
    -A
  • Surface Quality
    40-20 scratch-dig

Features

Advantage 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 aspheric lenses 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.

Molded Glass Aspheric Construction

These Geltech lenses are made from Corning C0550 glass, which features low dispersion (Vd=50.40). Typical applications include fiber coupling, laser diodes, medical lasers, optical data storage, and barcode scanners.  Mounted versions with a 304 stainless steel holder are also available.

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
76.2 mm (M-) LH-3A 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
38.1 mm (M-) LH-1.5A LT20 lens tube with LH-2R1.5 adapter LP-2 lens positioner with LPLH-1.5T adapter
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
12.7 mm (M-) LH-0.5A
LH-05N
LT05-05
LT05-10
LP-05A
LP-05A-XY
LP-05A-XYZ
6.35 mm LH-05DB with LH-50R25 adapter LT05 lens tube with LH-50R25 adapter LP-05 lens positioner with LPLH-25T adapter

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