>> Product Description
Product Description
Achromatic Lenses/cemented lenses/glued lenses/doublets are achromatic consists of a positive low-index Crown Glass lens element cemented to a negative high-index Flint Glass lens element. The elements are chosen so as to cancel chromatic aberration at two well-separated wavelengths, usually in the blue and red regions of the spectrum. Focal length is constant at those two wavelengths and focal length shifts are virtually eliminated across the visible wavelengths. One frequent use is to achieve diffraction-limited focusing of a laser beam. Negative Achromats are typically used when there is a need to eliminate chromatic aberration. In addition to reducing chromatic aberration at the design wavelengths, spherical aberration and coma are greatly reduced.
VY Optics Photoelectric Technology Co., Ltd. Supply all kinds of achromatic lenses as per your request.
>> Specification
Specification of our achromatic lens as follow:
*Material: BK7 and ZF2(or according to your request)
*Dia.: +0/-0.05
*Center thickness tolerance: +/-0.1
*Surface quality: 60-40 Scrath/Dig
*Surface figure: 0.5-0.2
*Centration < 3arc min
*Chamfer: 0.1-0.25*45 degrees
*Design wavelength: 486.1mm, 587.6mm, 656.3mm
(the parameter is decision of normal lens, so specification will be changed according to different decision and material)
| diameter |
+0/-0.05mm |
| material |
BK7,ZF2 or other optical glass |
| surface quality |
60-40 |
| surface figure |
0.5-0.2 |
| centration |
<3 arc min |
| chamfer |
0.1-0.25mm*45degree |
>> Company Introduction
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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 a high-precision lens as per your request.
>>
FAQ
Q:
Do you provide samples? Is it free or charged?
· We'd like to supply samples for free if we have them in stock, but we don't pay the 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, depending on the exact quantity and order date.
Q:
Is it possible to customize a special lens?
· Yes, to customize special optical elements and coating are available here.
Q:
How to pay?
· T/T, Alibaba 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 Alibaba, but also on Made-in-China, reputation and quality is the life of our company, and we support Alibaba Trade Assurance.
Q:
How do you ship goods?
· Low-value sample: EUB, E Express of China Post, which is cheap;
· Lightweight parcel: DHL, FedEx, TNT, UPS, EMS, SF Express, China Post;
· Heavy cargo: by air or by sea, ship on a pallet.
Our company enjoys a considerable discount owing to long-term cooperation with the courier company.
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