Meniscus Lenses
Material:
N-BK7, UV grade fused silica, CaF₂ etc
Surface Flatness:
N＜3, △N＜λ/4
Coating:
Uncoated,
Single Layer MgF₂,
AR/AR@250-400nm, Ravg<0.5%
AR/AR@400-700nm, Ravg<0.5%
AR/AR@650-1050nm, Ravg<0.5%
AR/AR@1000-1650nm, Ravg<0.5%
Surface Quality:
60/40~10/5
Clear Aperture:
>90%
Convex-concave (meniscus) lenses can be either positive or negative, depending on the relative curvatures of the two surfaces. A negative meniscus lens has a steeper concave surface and is thinner at the centre than at the edge. Conversely, a positive meniscus lens has a steeper convex surface and is thicker at the centre than at the edge.
| wdt_ID | Attributes | Values |
|---|---|---|
| 1 | Material | N-BK7, UV grade fused silica, CaF₂ etc |
| 17 | Diameter Tolerance | +0.0,-0.1mm |
| 18 | Center Thickness | +/-0.2mm |
| 19 | Surface Quality | 60/40~10/5 |
| 20 | Paraxial Focal Length | +/-1% (EFL＜1m) +/-2%（EFL＞1m) |
| 21 | Surface Flatness | N＜3, △N＜λ/4 |
| 25 | Clear Aperture | >90% |
| 26 | Coating | Uncoated Single Layer MgF₂, AR/AR@250-400nm, Ravg＜0.5% AR/AR@400-700nm, Ravg＜0.5% AR/AR@650-1050nm, Ravg＜0.5% AR/AR@1000-1650nm, Ravg＜0.5% |
Positive Lens
| wdt_ID | Part No. | Material | f (mm) | dia (mm) | R1 (mm) | t c (mm) | t e (mm) |
|---|---|---|---|---|---|---|---|
| 1 | PMSL254100 | N-BK7 | 100 | 25.4 | R1=32.14, R2=82.20 | 3.6 | 2 |
| 17 | PMSL254125 | N-BK7 | 125 | 25.4 | R1=40.60, R2=106.86 | 3.3 | 2 |
| 18 | PMSL254150 | N-BK7 | 150 | 25.4 | R1=49.10, R2=131.81 | 3.1 | 2 |
| 19 | PMSL254200 | N-BK7 | 200 | 25.4 | R1=66.20, R2=182.57 | 2.8 | 2 |
| 20 | PMSL254250 | N-BK7 | 250 | 25.4 | R1=83.40, R2=234.19 | 2.6 | 2 |
| 131 | PMSL254300 | N-BK7 | 300 | 25.4 | R1=100.90, R2=288.30 | 2.5 | 2 |
| 132 | PMSL254400 | N-BK7 | 400 | 25.4 | R1=136.50, R2=402.03 | 2.4 | 2 |
| 226 | PMSL254500 | N-BK7 | 500 | 25.4 | R1=172.90, R2=523.70 | 2.3 | 2 |
| 227 | PMSL2541000 | N-BK7 | 1000 | 25.4 | R1=371.60, R2=1331.26 | 2.2 | 2 |
| 228 | PMSL508100 | N-BK7 | 100 | 50.8 | R1=30.34, R2=65.80 | 9.7 | 1.1 |
| 229 | PMSL508125 | N-BK7 | 125 | 50.8 | R1=39.20, R2=93.08 | 8.2 | 2.4 |
| 230 | PMSL508150 | N-BK7 | 150 | 50.8 | R1=47.90, R2=119.51 | 7.3 | 2.7 |
| 231 | PMSL508200 | N-BK7 | 200 | 50.8 | R1=65.20, R2=171.87 | 6.2 | 2.9 |
| 232 | PMSL508250 | N-BK7 | 250 | 50.8 | R1=82.54, R2=224.69 | 5.5 | 3 |
| 233 | PMSL508300 | N-BK7 | 300 | 50.8 | R1=100.10, R2=279.28 | 5.1 | 3 |
| 234 | PMSL508400 | N-BK7 | 400 | 50.8 | R1=135.80, R2=393.38 | 5 | 3.4 |
| 235 | PMSL508500 | N-BK7 | 500 | 50.8 | R1=172.30, R2=515.42 | 5 | 3.7 |
| 236 | PMSL5081000 | N-BK7 | 1000 | 50.8 | R1=371.50, R2=1326.56 | 5 | 4.4 |
Negative lens
wdt_ID Part No. Material f (mm) dia (mm) R1 (mm) t c (mm) t e (mm)
1
NMSL254100
N-BK7
-100
25.4
R1=33.65, R2=100.0
3
4.7
17
NMSL254125
N-BK7
-125
25.4
R1=38.77, R2=100.0
3
4.3
237
NMSL254150
N-BK7
-150
25.4
R1=43.14, R2=100.0
3
4.1
238
NMSL254200
N-BK7
-200
25.4
R1=50.23, R2=100.0
3
3.8
239
NMSL254250
N-BK7
-250
25.4
R1=55.71, R2=100.0
3
3.7
240
NMSL254300
N-BK7
-300
25.4
R1=95.11, R2=250.0
3
3.5
241
NMSL254400
N-BK7
-400
25.4
R1=112.49, R2=250.0
3
3.4
242
NMSL254500
N-BK7
-500
25.4
R1=126.34, R2=250.0
3
3.3
243
NMSL2541000
N-BK7
-1000
25.4
R1=253.20, R2=500.0
3
3.2
244
NMSL508100
N-BK7
-100
50.8
R1=40.61 R2=200.0
5
12.3
245
NMSL508125
N-BK7
-125
50.8
R1=48.29, R2=200.0
5
10.6
246
NMSL508150
N-BK7
-150
50.8
R1=55.21, R2=200.0
5.5
9.6
247
NMSL508200
N-BK7
-200
50.8
R1=67.42, R2=200.0
5
8.4
248
NMSL508250
N-BK7
-250
50.8
R1=77.67, R2=200.0
5
7.7
249
NMSL508300
N-BK7
-300
50.8
R1=101.41, R2=300.0
5
7.2
250
NMSL508400
N-BK7
-400
50.8
R1=121.46, R2=300.0
5
6.6
251
MSL508500
N-BK7
-500
50.8
R1=137.79, R2=300.0
5
6.3
252
MSL5081000
N-BK7
-1000
50.8
R1=252.85, R2=500.0
5
45.6
| wdt_ID | Part No. | Material | f (mm) | dia (mm) | R1 (mm) | t c (mm) | t e (mm) |
|---|---|---|---|---|---|---|---|
| 1 | NMSL254100 | N-BK7 | -100 | 25.4 | R1=33.65, R2=100.0 | 3 | 4.7 |
| 17 | NMSL254125 | N-BK7 | -125 | 25.4 | R1=38.77, R2=100.0 | 3 | 4.3 |
| 237 | NMSL254150 | N-BK7 | -150 | 25.4 | R1=43.14, R2=100.0 | 3 | 4.1 |
| 238 | NMSL254200 | N-BK7 | -200 | 25.4 | R1=50.23, R2=100.0 | 3 | 3.8 |
| 239 | NMSL254250 | N-BK7 | -250 | 25.4 | R1=55.71, R2=100.0 | 3 | 3.7 |
| 240 | NMSL254300 | N-BK7 | -300 | 25.4 | R1=95.11, R2=250.0 | 3 | 3.5 |
| 241 | NMSL254400 | N-BK7 | -400 | 25.4 | R1=112.49, R2=250.0 | 3 | 3.4 |
| 242 | NMSL254500 | N-BK7 | -500 | 25.4 | R1=126.34, R2=250.0 | 3 | 3.3 |
| 243 | NMSL2541000 | N-BK7 | -1000 | 25.4 | R1=253.20, R2=500.0 | 3 | 3.2 |
| 244 | NMSL508100 | N-BK7 | -100 | 50.8 | R1=40.61 R2=200.0 | 5 | 12.3 |
| 245 | NMSL508125 | N-BK7 | -125 | 50.8 | R1=48.29, R2=200.0 | 5 | 10.6 |
| 246 | NMSL508150 | N-BK7 | -150 | 50.8 | R1=55.21, R2=200.0 | 5.5 | 9.6 |
| 247 | NMSL508200 | N-BK7 | -200 | 50.8 | R1=67.42, R2=200.0 | 5 | 8.4 |
| 248 | NMSL508250 | N-BK7 | -250 | 50.8 | R1=77.67, R2=200.0 | 5 | 7.7 |
| 249 | NMSL508300 | N-BK7 | -300 | 50.8 | R1=101.41, R2=300.0 | 5 | 7.2 |
| 250 | NMSL508400 | N-BK7 | -400 | 50.8 | R1=121.46, R2=300.0 | 5 | 6.6 |
| 251 | MSL508500 | N-BK7 | -500 | 50.8 | R1=137.79, R2=300.0 | 5 | 6.3 |
| 252 | MSL5081000 | N-BK7 | -1000 | 50.8 | R1=252.85, R2=500.0 | 5 | 45.6 |
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