Lens Overview

Lenses have many applications ranging from the simple collection of the scanning of laser beams to precise imaging and image transfer.

DELN can provide all kinds of spherical and cylindrical lenses, usually we can offer.

Spherical: Rectangular, circular, plano-convex, plano-concave, double-convex, double-concave, meniscus, achromatic, dome lens, rod lens, ball lens, half ball

Cylindrical: Rectangular, circular, plano-convex, plano-concave, achromatic

Assembly: Doublet, triplet, customer designed special lens kit

Mixture: One side spherical, the other side cylindrical

Usually lenses are not only used in visible band, but also in IR band and UV band, that means special material should be used. Now, DELN can offer lenses made of various materials such as CaF2, MgF2, Sapphire, Silicon, Germanium, ZnSe and etc. DELN can also provide various coatings for lenses upon your request.

Specifications

Dimension And Tolerance	1mm to 500mm,+0/-0.1mm
Thickness Tolerance	±0.2mm
Radius Tolerance	±0.5%
Surface Quality	60/40 scratch and dig or better
Power(fringe@633nm)	3
Irregularity(fringe@633nm)	0.5
Centration	<3 arc minutes
Focal Length Tolerance	±2%
Clear Aperture	>90%
Chamfer	Protective <0.5mmx45deg

The frequently used AR coatings are as below:

Information

Product Line

WARRANTY

All products are guaranteed to be in specifications in material and workmanship for a period of 12 months after shipment.
We do not assume liability for installation, labor or consequential damages.
This warranty is not suitable for failure of the products due to misuse, abuse, accident, or neglect.

Contacts

Deln Optics
E-mail: [email protected]

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