>> Product Description
Aspheric lenses provide simple, single-element solutions for laser collimation. Aspheres can eliminate spherical aberrations and improve focusing and collimating accuracy. At design wavelength aspheric lenses are diffraction limited.
Typical applications are fiber coupling, laser diodes, optical data storage, and barcode scanners.
Aspheric lens or asphere is a lens whose surface profiles are not portions of a sphere or cylinder. In photography, a lens assembly that includes an aspheric
element is often called an aspherical lens.
The asphere's more complex surface profile can reduce or eliminate spherical aberration and also reduce other optical aberrations such as astigmatism, compared
to a simple lens. A single aspheric lens can often replace a much more complex multi-lens system. The resulting device is smaller and lighter, and sometimes cheaper
than the multi-lens design.Aspheric elements are used in the design of multi-element wide-angle and fast normal lenses to reduce aberrations. They are also used in combination with reflective elements (catadioptric systems) such as the aspherical Schmidt corrector plate used in the Schmidt cameras and the Schmidt-Cassegrain telescopes. Small molded aspheres are often used for collimating diode lasers.
We supply kinds of dimensions for aspheric cylindrical lenses,
>> Specification
Specification of aspheric cylindric lens as follow:
Material:BK7 or other optical material
Size:10mm-200mm
Fringes:lambda/2
Center Thickness:15nm-25nm
Dispersion round:0.03mm-0.2mm
Centration:3 arc min
Surface Quality:60-40 Scratch/Dig
Clear Aperture:90%
Coating:Available upon Request
| Range of diameter |
Dia.0.7mm-Dia.400mm |
| Range of curve radius |
R1.5-R∞ etc. |
| Tolerance of diameter |
+/-0.1, +/-0.01, +/-0.005 etc. |
| Surface accuracy |
λ , 1/2λ , 1/4λ , 1/10λ etc. |
| Tolerance of Thickness |
+/-0.1, +/-0.05, +/-0.01 etc. |
| Centration |
+/-2′,+/-1′ etc. |
| Aperture N |
5, 1 etc. |
| Irregularity ΔN |
2, 1, 0.5, 0.2 etc. |
| Surface quality |
60/40, 40/20, 20/10, 10/5 etc. |
>> Company Introduction
>> Related Products
VY Optics could also manufacture and design other optical elements, including achromatic lens, dome lens, filter, prism, ball lens, cylindrical lens, optical mirrors, spherical lens and rod lens, we can fabricate high-precision lens as per your requested.
>> FAQ
Q:
Do you provide samples? Is it free or charged?
· We'd like to supply samples for free if we have it in stock, but we don't pay freight.
Q:
How long is your delivery time?
· Regarding inventory, it is 3 working days;
· For customized one, it's about 15-25 working days, depended on exact quantity and order date.
Q:
Is it possible to customize special lens?
· Yes, to customize special optical element and coating are available here.
Q:
How to pay?
· T/T, Ali online assurance payment, MoneyGram, West Union, Paypal and so on.
Q:
How to ensure the safety of payment?
· VY Optics is a reliable supplier not only audited on Ali, but also on Made-in-China, reputation and quality is life of our company, and we support Ali Trade Assurance.
Q:
How do you ship goods?
· Low value sample: EUB, E Express of China Post, which is cheap;
· Light weight parcel: DHL, FedEx, TNT, UPS, EMS, SF Express, China Post;
· Heavy cargo: by air or by sea, ship on pallet.
Our company enjoy a considerable discount owing to long-term cooperation with courier company.
){kind=link}