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Meniscus Lens
| Meniscus Lens can increase
the NA of the system while only adding slightly to the total
spherical aberrations. The Negative Meniscus Lens is used to
increase the focal length of another lens while maintaining the
angular resolution of the optical assembly. This lens shape is best
used when one conjugate is relatively far from the lens. |
Applications:
●Camera Systems
●Projection Optics System
●Imaging Optics Systems
●Laser Measurements Systems
●Optical View Finder
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|
Positive Meniscus Lens |
Negative Meniscus Lens |
General Specifications |
Parameter |
Commercial Grade |
Substrate Material |
BK7 grade A optical glass, fused silica
etc |
| Design Wavelength |
546.1nm |
Diameter Tolerance |
+0/-0.15mm |
Focal Length Tolerance |
+/-2%@546.1nm |
Clear Aperture |
>Central 85% of diameter |
Surface Quality |
60-40 S/D |
Centration |
< 3 arc minutes |
Surface Accuracy |
λ/4@632.8nm |
Chamfer |
0.25mm x 45° |
Coating |
Uncoated |
BK7 Positive Meniscus Lens Standard Products:
Part No. |
f(mm) |
φ(mm) |
R1 (mm) |
R2 (mm) |
tc (mm) |
te (mm) |
fb (mm) |
LMP0301 |
100.0 |
25.4 |
33.72 |
90.00 |
4.0 |
2.5 |
97.5 |
LMP0302 |
125.0 |
25.4 |
38.47 |
90.00 |
4.0 |
2.8 |
121.8 |
LMP0303 |
150.0 |
25.4 |
42.52 |
90.00 |
4.0 |
3.0 |
146.3 |
LMP0304 |
175.0 |
25.4 |
46.05 |
90.00 |
4.0 |
3.1 |
171.2 |
LMP0305 |
200.0 |
25.4 |
49.03 |
90.00 |
3.5 |
2.8 |
197.0 |
LMP0306 |
250.0 |
25.4 |
83.96 |
235.00 |
3.5 |
2.9 |
246.5 |
LMP0307 |
300.0 |
25.4 |
94.08 |
235.00 |
3.5 |
3.0 |
296.3 |
LMP0308 |
350.0 |
25.4 |
102.90 |
235.00 |
3.5 |
3.1 |
346.0 |
LMP0309 |
400.0 |
25.4 |
110.72 |
235.00 |
3.5 |
3.1 |
395.8 |
LMP0310 |
500.0 |
25.4 |
123.90 |
235.00 |
3.5 |
3.2 |
495.4 |
LMP0311 |
600.0 |
25.4 |
204.95 |
600.00 |
3.5 |
3.2 |
595.3 |
LMP0312 |
800.0 |
25.4 |
245.39 |
600.00 |
3.5 |
3.3 |
794.5 |
LMP0313 |
1000.0 |
25.4 |
278.34 |
600.00 |
3.5 |
3.3 |
993.7 |
LMP0314 |
1500.0 |
25.4 |
339.05 |
600.00 |
3.5 |
3.4 |
1492.0 |
LMP0315 |
2000.0 |
25.4 |
380.54 |
600.00 |
3.5 |
3.4 |
1990.2 |
LMP0316 |
4000.0 |
25.4 |
466.12 |
600.00 |
3.5 |
3.5 |
3984.5 |
BK7 Negative Meniscus Lens Standard Products:
Part No. |
f(mm) |
φ(mm) |
R1 (mm) |
R2 (mm) |
tc (mm) |
te (mm) |
fb (mm) |
LMN0301 |
-100.0 |
25.4 |
90.00 |
32.59 |
3.0 |
4.5 |
-99.2 |
LMN0302 |
-125.0 |
25.4 |
90.00 |
37.26 |
3.0 |
4.2 |
-123.7 |
LMN0303 |
-150.0 |
25.4 |
90.00 |
41.42 |
3.0 |
4.0 |
-149.5 |
LMN0304 |
-175.0 |
25.4 |
90.00 |
44.86 |
3.0 |
3.8 |
-174.6 |
Note: Other material Meniscus Lenses, Cutting Lenses, Square Lenses, Rectangle Lenses
and Coatings are available upon requestment.
The general tolerance
specifications above provide a guideline regarding manufacturing
capabilities for optics ranging in size from 1-350mm. The
manufacturing limits are not absolute; tighter tolerances may be
possible. Part specific tolerances may vary depending on component
size, shape, and/or material. |
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