Aspheric Lens, Molded Glass, 4.70 mm, 2.95 mm FL, 0.53 NA, 350-700 nm

The KGA440-A Geltech Molded Glass Aspheric Lens is a very economic choice for collimating or focusing light at high magnification. It is made from CDGM D-ZLaF52LA glass, which features low dispersion (Vd=40.99). Typical applications include fiber coupling, laser diodes, medical lasers, optical data storage, and barcode scanners. This 4.70 mm diameter lens has an effective focal length of 2.95 mm and a 0.53 NA. It has a Visible anti-reflective coating for 350-700 nm.

Specifications

Technical Specs

Lens Type
Molded Glass Aspheric
Lens Shape
Bi-Convex Aspheric
Diameter
4.7 mm
Antireflection Coating
350-700 nm
Coating Code
-A
Lens Material
D-ZLaF52LA
Surface Quality
40-20 scratch-dig
Effective Focal Length (EFL)
2.8 mm

Edge Thickness (T<sub>e</sub>)
0.250 mm
Design Wavelength
980 nm
Diameter Tolerance
±0.015 mm
Clear Aperture
4.12 mm
Cleaning
See How to Clean Optics
Numerical Aperture
0.5 mm (front), 0.3 mm (rear)

Lens Type
Molded Glass Aspheric
Lens Shape
Bi-Convex Aspheric
Diameter
4.7 mm
Antireflection Coating
350-700 nm
Coating Code
-A
Lens Material
D-ZLaF52LA
Surface Quality
40-20 scratch-dig
Effective Focal Length (EFL)
2.8 mm

Edge Thickness (T<sub>e</sub>)
0.250 mm
Design Wavelength
980 nm
Diameter Tolerance
±0.015 mm
Clear Aperture
4.12 mm
Cleaning
See How to Clean Optics
Numerical Aperture
0.5 mm (front), 0.3 mm (rear)

Resources & Downloads

Drawings And Cad

KGA440.pdf(451.3 kB, PDF)

Other

KGA440-A RoHS Certificate(264 kB, PDF)
KGA440-A_ROHS2-2021.pdf(278.9 kB, PDF)

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