NIR Antireflection Coated Molded Glass Aspheric Lenses

These 600-1050 nm antireflection coated Geltech® molded glass aspheric lenses are a very economic choice for collimating or focusing light at high magnification. They are made from low dispersion materials and are suitable for applications include fiber coupling, collimating laser diodes, and laser scanning.

600-1050 nm NIR antireflection coating
Aspheric surface reduces spherical aberration
Economical choice for collimating or focusing light

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Showing 10 of 19 total products

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Description	Compatibility	Lens Shape	Diameter	Effective Focal Length (EFL)	Numerical Aperture	Avail.	Price
KGA022-BAspheric Lens, Molded Glass, 5.42 mm, 4.47 mm FL, 0.47 NA, 600-1050 nm	UNIVERSAL	Bi-Convex Aspheric	5.42 mm	4.47 mm	0.47	In Stock	$125
KGA110-BAspheric Lens, Molded Glass, 7.20 mm, 6.24 mm FL, 0.40 NA, 600-1050 nm	UNIVERSAL	Plano-Convex Aspheric	7.2 mm	6.24 mm	0.4	In Stock	$110
KGA150-BAspheric Lens, Molded Glass, 3.00 mm, 2.00 mm FL, 0.47 NA, 600-1050 nm	UNIVERSAL	Bi-Convex Aspheric	3.0 mm	2.00 mm	0.5	In Stock	$110
KGA160-BAspheric Lens, Molded Glass, 4.00 mm, 2.72 mm FL, 0.55 NA, 600-1050 nm	UNIVERSAL	Plano-Convex Aspheric	4.0 mm	2.72 mm	0.55	In Stock	$110
KGA170-BAspheric Lens, Molded Glass, 4.70 mm, 6.16 mm FL, 0.30 NA, 600-1050 nm	UNIVERSAL	Bi-Convex Aspheric	4.7 mm	6.16 mm	0.3	In Stock	$110
KGA220-BAspheric Lens, Molded Glass, 7.20 mm, 11.0 mm FL, 0.25 NA, 600-1050 nm	UNIVERSAL	Plano-Convex Aspheric	7.2 mm	11.0 mm	0.3	In Stock	$110
KGA230-BAspheric Lens, Molded Glass, 6.325 mm, 4.51 mm FL, 0.55 NA, 600-1050 nm	UNIVERSAL	Plano-Convex Aspheric	6.325 mm	4.5 mm	0.6	Contact Us	$110
KGA240-BAspheric Lens, Molded Glass, 9.94 mm, 8.00 mm FL, 0.50 NA, 600-1050 nm	UNIVERSAL	Plano-Convex Aspheric	9.936 mm	8.0 mm	0.5	In Stock	$110
KGA260-BAspheric Lens, Molded Glass, 6.50 mm, 15.29 mm FL, 0.16 NA, 600-1050 nm	UNIVERSAL	Plano-Convex Aspheric	6.5 mm	15.29 mm	0.16	In Stock	$110
KGA280-BAspheric Lens, Molded Glass, 6.50 mm, 18.40 mm FL, 0.15 NA, 600-1050 nm	UNIVERSAL	Plano-Convex Aspheric	6.5 mm	18.4 mm	0.15	In Stock	$110

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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 (T_e) specification of the lens and the lens mount to ensure compatibility before purchasing.

Lens Diameter	A-Line™ Lens Mounts	LT Series Lens Tubes	LP Series Lens Positioners	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.

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.