Compare Model Drawings, CAD & Specs Lens Shape Diameter Effective Focal Length (EFL) Numerical Aperture Availability Price
KGA022-B
$117
In Stock
 KGA022-B Bi-Convex Aspheric 5.42 mm 4.47 mm 0.47
In Stock
 $117
KGA080-B
$104
Contact Us
 KGA080-B Bi-Convex Aspheric 6.35 mm 3.89 mm 0.55
Contact Us
 $104
KGA110-B
$104
In Stock
 KGA110-B Plano-Convex Aspheric 7.2 mm 6.24 mm 0.4
In Stock
 $104
KGA150-B
$104
In Stock
 KGA150-B Bi-Convex Aspheric 3.0 mm 2.00 mm 0.5
In Stock
 $104
KGA160-B
$104
2 Weeks
 KGA160-B Plano-Convex Aspheric 4.0 mm 2.72 mm 0.55
2 Weeks
 $104
KGA170-B
$104
In Stock
 KGA170-B Bi-Convex Aspheric 4.7 mm 6.16 mm 0.3
In Stock
 $104
KGA220-B
$104
In Stock
 KGA220-B Plano-Convex Aspheric 7.2 mm 11.0 mm 0.25
In Stock
 $104
KGA230-B
$104
In Stock
 KGA230-B Plano-Convex Aspheric 6.35 mm 4.51 mm 0.55
In Stock
 $104
KGA240-B
$104
In Stock
 KGA240-B Plano-Convex Aspheric 9.9 mm 8.0 mm 0.5
In Stock
 $104
KGA260-B
$104
In Stock
 KGA260-B Plano-Convex Aspheric 6.5 mm 15.29 mm 0.16
In Stock
 $104
KGA280-B
$104
In Stock
 KGA280-B Plano-Convex Aspheric 6.5 mm 18.4 mm 0.15
In Stock
 $104
KGA330-B
$104
In Stock
 KGA330-B Bi-Convex Aspheric 6.35 mm 3.10 mm 0.68
In Stock
 $104
KGA340-B
$104
In Stock
 KGA340-B Bi-Convex Aspheric 6.35 mm 4.03 mm 0.64
In Stock
 $104
KGA350-B
$104
In Stock
 KGA350-B Plano-Convex Aspheric 4.7 mm 4.50 mm 0.42
In Stock
 $104
KGA392-B
$104
In Stock
 KGA392-B Plano-Convex Aspheric 4.0 mm 2.75 mm 0.64
In Stock
 $104
KGA430-B
$104
In Stock
 KGA430-B Plano-Convex Aspheric 2.0 mm 5.00 mm 0.16
In Stock
 $104
KGA440-B
$104
In Stock
 KGA440-B Bi-Convex Aspheric 4.7 mm 2.95 mm 0.53
In Stock
 $104
KGA560-B
$104
In Stock
 KGA560-B Plano-Convex Aspheric 6.35 mm 13.86 mm 0.18
In Stock
 $104
KGA660-B
$104
In Stock
 KGA660-B Plano-Convex Aspheric 4.0 mm 2.97 mm 0.6
In Stock
 $104
KGA671-B
$174
In Stock
 KGA671-B Plano-Convex Aspheric 6.35 mm 4.00 mm 0.6
In Stock
 $174

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.

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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