A negative meniscus lens is a type of lens with a concave surface on one side and a convex surface on the other, resulting in a curved shape that is thicker at the edges than in the center. This lens can be made from a variety of materials, including glass, plastic, and other materials.
One of the primary applications of negative meniscus lenses is in optical systems, where they are used to correct for various aberrations that can occur in lenses. For example, these lenses can be used to correct for chromatic aberration, which occurs when different colors of light are focused at different points. Negative meniscus lenses can also be used to correct for spherical aberration, which occurs when light passing through the lens is not focused properly due to the curvature of the lens.
In addition to their use in optical systems, negative meniscus lenses can also be used in imaging systems, where they help to improve the resolution and clarity of images. They are often used in telescopes, microscopes, and other imaging equipment to help produce high-quality images with minimal distortion or aberration.
Negative Meniscus Lens factory processing capability:
Parameter |
Range |
Size |
10-300mm or custom |
Size tolerance |
+/-0.02mm or custom |
Focal length |
+/-1% or custom |
Surface quality |
40-20 or custom |
Clear aperture |
>90% |
Flateness |
λ/10@632.8nm |
Centration |
<30 seconds |
Bevel |
<0.2mm✖45° |
Coating |
custom |
Material |
BK7, fused silica, CaF2, Znse |
Part of Positive Meniscus lens we processed. The list goes on. Please check with our sales engineer.
Model |
Diameter |
EFL |
R1 |
R2 |
Center thickness (Tc) |
Edge thickness (Te) |
NL25.4M100 |
25.4 |
-100 |
33.65 |
100 |
3 |
4.7 |
NL25.4M125 |
25.4 |
-125 |
38.77 |
100 |
3 |
4.3 |
NL25.4M150 |
25.4 |
-150 |
43.14 |
100 |
3 |
4.1 |
NL25.4M200 |
25.4 |
-200 |
50.23 |
100 |
3 |
3.8 |
NL25.4M250 |
25.4 |
-250 |
55.71 |
100 |
3 |
3.7 |
NL25.4M300 |
25.4 |
-300 |
95.11 |
250 |
3 |
3.5 |
NL25.4M400 |
25.4 |
-400 |
112.49 |
250 |
3 |
3.4 |
NL25.4M500 |
25.4 |
-500 |
126.34 |
250 |
3 |
3.3 |
NL25.4M1000 |
25.4 |
-1000 |
253.2 |
500 |
3 |
3.2 |
NL25.4M50 |
25.4 |
-50 |
90 |
19.9 |
3 |
4.5 |
NL50.8M100 |
50.8 |
-100 |
40.61 |
200 |
5 |
12.3 |
NL50.8M125 |
50.8 |
-125 |
48.29 |
200 |
5 |
10.6 |
NL50.8M150 |
50.8 |
-150 |
55.21 |
200 |
5 |
9.6 |
NL50.8M200 |
50.8 |
-200 |
67.42 |
200 |
5 |
8.4 |
NL50.8M250 |
50.8 |
-250 |
77.67 |
200 |
5 |
7.7 |
NL50.8M300 |
50.8 |
-300 |
101.41 |
300 |
5 |
7.2 |
NL50.8M400 |
50.8 |
-400 |
121.46 |
300 |
5 |
6.6 |
NL50.8M500 |
50.8 |
-500 |
137.79 |
300 |
5 |
6.3 |
NL50.8M1000 |
50.8 |
-1000 |
252.85 |
500 |
5 |
5.6 |