Customized Double Concave Lenses
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MSE supplies customized Double Concave Lenses with different materials, dimension, surface qualify, etc.
Double Concave Lenses, which are also called Biconcave Lenses, are lenses with symmetric concave curvature on both size. They are used for light protection, image reduction and beam expansion. Some times they are also used to extend the focal length. It is widely used in optical field such as laser, projection, etc.
MSE Supplies can offer a variant of optical elements, with different material, size, surface quality and coating. Please contact us for customization or bulk orders.
Technical Data:
| Parameters | Value |
| Material |
|
| Diameter (mm) |
0.5-500 |
| Diameter Tolerance (mm) | +0/-0.01~+0/-0.1 |
| Thickness Tolerance (mm) | ±0.01~±0.1 |
| Focal Length Tolerance (%) | ±1 |
| Irregularity (P-V) @ 632.8nm | λ/10~λ/2@632.8 |
| Surface Quality | 10/5~60/40 |
| Centration | <30”~3' |
| Clear Aperture (%) | >90 |
| Bevel | Protective bevel as needed |
| Coating | Uncoated, AR, BBAR |
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