Lenses |BK7 Mensiscus Lenses
BK7 Positive Meniscus Lenses
Specifications
Material: BK7 Grade A or equivalent Optical Glass
Design Wavelength: 546.1nm
Design Index: 1.5183 ±0.0005
Diameter Tolerance: +0.0,
-0.15mm
Paraxial Focal Length: ±2%
Centration: 3 arc minutes
Clear Aperture: >80%
Surface Figure: l/4@632.8nm
Surface Quality: 60-40 scratch
and dig
Protective Bevel
| Part No. | f | ¦µ | R1 (mm) | R2 (mm) | tc (mm) | te (mm) | fb (mm) |
|---|---|---|---|---|---|---|---|
| MNP0301 | 100.0 | 25.4 | 33.72 | 90.00 | 4.0 | 2.5 | 97.5 |
| MNP0302 | 125.0 | 25.4 | 38.47 | 90.00 | 4.0 | 2.8 | 121.8 |
| MNP0303 | 150.0 | 25.4 | 42.52 | 90.00 | 4.0 | 3.0 | 146.3 |
| MNP0304 | 175.0 | 25.4 | 46.05 | 90.00 | 4.0 | 3.1 | 171.2 |
| MNP0305 | 200.0 | 25.4 | 49.03 | 90.00 | 3.5 | 2.8 | 197.0 |
| MNP0306 | 250.0 | 25.4 | 83.96 | 235.00 | 3.5 | 2.9 | 246.5 |
| MNP0307 | 300.0 | 25.4 | 94.08 | 235.00 | 3.5 | 3.0 | 296.3 |
| MNP0308 | 350.0 | 25.4 | 102.90 | 235.00 | 3.5 | 3.1 | 346.0 |
| MNP0309 | 400.0 | 25.4 | 110.72 | 235.00 | 3.5 | 3.1 | 395.8 |
| MNP0310 | 500.0 | 25.4 | 123.90 | 235.00 | 3.5 | 3.2 | 495.4 |
| MNP0311 | 600.0 | 25.4 | 204.95 | 600.00 | 3.5 | 3.2 | 595.3 |
| MNP0312 | 800.0 | 25.4 | 245.39 | 600.00 | 3.5 | 3.3 | 794.5 |
| MNP0313 | 1000.0 | 25.4 | 278.34 | 600.00 | 3.5 | 3.3 | 993.7 |
| MNP0314 | 1500.0 | 25.4 | 339.05 | 600.00 | 3.5 | 3.4 | 1492.0 |
| MNP0315 | 2000.0 | 25.4 | 380.54 | 600.00 | 3.5 | 3.4 | 1990.2 |
| MNP0316 | 4000.0 | 25.4 | 466.12 | 600.00 | 3.5 | 3.5 | 3984.5 |
BK7 Negative Meniscus Lenses
Specifications
Material: BK7 grade A equivalent optical glass
Design Wavelength: 546.1nm
Design Index: 1.5183±
0.00005
Diameter Tolerance: +0.0, -0.15mm
Paraxial Focal Length: ±2%
Centration: 3 arc minutes
Clear Aperture: >80%
Surface Figure: l/4@632.8nm
Surface Quality: 60-40 scratch and dig
Protective Bevel
| Part No. | f | ¦µ | R1 (mm) | R2 (mm) | tc (mm) | te (mm) | fb (mm) |
|---|---|---|---|---|---|---|---|
| MNN0301 | -100.0 | 25.4 | 90.00 | 32.59 | 3.0 | 4.5 | -99.2 |
| MNN0302 | -125.0 | 25.4 | 90.00 | 37.26 | 3.0 | 4.2 | -123.7 |
| MNN0303 | -150.0 | 25.4 | 90.00 | 41.42 | 3.0 | 4.0 | -149.5 |
| MNN0304 | -175.0 | 25.4 | 90.00 | 44.86 | 3.0 | 3.8 | -174.6 |
Other
sizes and coating are available upon requirements
Please refer to Ring
Mount for Lenses