There are 58 concave lens from 24 suppliers on EC21.com
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Optical bi Concave Lens
Concave lens that possesses at least one surface that curves inwards.
It is a diverging lens, spreading out those light rays that have been
refracted through it. A concave lens is thinner at its centre than at
its edges, and is used to correct short-sightedness.
Material:Fused cilica, BK7 Grade A or equivalent optical glasses
Design Wavalength:546.1nm
Diameter Tolerance:±0.1mm, ±0.15mm for Dia.≥75mm
Paraxial Focus Length:±2%
Centration:<3 arc minutes
Clear Aperture:>85%
Surface Figure:λ/4 at 632.8nm
Surface Quality:20/10 or better
Coatings:Antireflection coatings or NIR coatings or no
Bevel:protective bevel
We could offer concave or convex lenses according to custom design.
Besides, there are a large volume of stock optical components in various
shapes and sizes to facilitate quick deliveries.
| Registration Date | 2011/07/29(Year/Month/Date) |
|---|---|
| Buyer / Seller in EC21 | Seller |
| Business Type | Manufacturer |
| Year established | 1995 |
| Employees total | 51 - 100 |
| Annual revenue | USD 1,000,001 - 2,000,000 |
| Company | Changchun Realpoo Photoelectric Co.,Ltd. |
|---|---|
| Address | No.4,Pu Qing Road,Chao Yang DistrictChangchunJilin9002909090China |
| Phone | 86 - 0431 - 89270225 |
| Fax | 86 - 0431 - 89270565 |
| Contact | Emma Wang / sale manager |