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Compare Description Drawings, CAD & Specs Lens ShapeDiameterEffective Focal Length (EFL)Numerical Aperture Avail. Price
Visible Molded Glass Aspheric LensesKGA022-ABi-Convex Aspheric5.42 mm4.47 mm0.47
In Stock
$136
Visible Molded Glass Aspheric LensesKGA110-APlano-Convex Aspheric7.2 mm6.24 mm0.4
In Stock
$122
Visible Molded Glass Aspheric LensesKGA150-ABi-Convex Aspheric3.0 mm2.00 mm0.5
In Stock
$127
Visible Molded Glass Aspheric LensesKGA160-APlano-Convex Aspheric4.0 mm2.72 mm0.55
In Stock
$107
Visible Molded Glass Aspheric LensesKGA220-APlano-Convex Aspheric7.2 mm11.0 mm0.3
In Stock
$107
Visible Molded Glass Aspheric LensesKGA230-APlano-Convex Aspheric6.325 mm4.5 mm0.6
In Stock
$116
Visible Molded Glass Aspheric LensesKGA240-APlano-Convex Aspheric9.936 mm8.0 mm0.5
In Stock
$127
Visible Molded Glass Aspheric LensesKGA260-APlano-Convex Aspheric6.5 mm15.29 mm0.16
In Stock
$107
Visible Molded Glass Aspheric LensesKGA280-APlano-Convex Aspheric6.5 mm18.4 mm0.15
In Stock
$107
Visible Molded Glass Aspheric LensesKGA330-ABi-Convex Aspheric6.325 mm3.10 mm0.7
In Stock
$107

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 () N/A N/A N/A
50.8 mm ()





N/A
38.1 mm () LT20 lens tube with
adapter
LP-2 lens positioner with
adapter
N/A
25.4 mm ()














12.7 mm ()



N/A
6.35 mm with
adapter
LT05 lens tube with
adapter
LP-05 lens positioner with
adapter
N/A

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

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.