DescriptionSpecifications
Models
Catalog PDF
Our precision objectives feature optical designs well corrected for infinite conjugate with the added benefit of a working distance more than 5 times as long as ordinary microscope objectives. This long working distance makes these lenses useful where other objectives are prohibited by mechanical constraints.
These objectives are excellent for laser collimating and focusing applications. The optical designs and antireflection coatings are optimized for 400700 nm for the visible objectives, and 8001300 nm for the near-IR objectives. The exception is N-20X-APO-IR, which is designed to provide a constant focal length over the 8001500 nm range. |
Specifications
| Model | Magnification | Numerical Aperture (NA) | Focal Length | Working Distance | Clear Aperture | Depth of Focus |
| Visible |
| N-20X-LD | 20x | 0.30 | 10.0 | 17.0 | 6.3 (6.3) | 3.0 |
| N-40X-LD | 40x | 0.60 | 5.0 | 3.0 | 6.9 (6.9) | 0.7 |
| Near Infrared |
| N-8X-TIR | 8x | 0.25 | 25.0 | 7.0 | 12.5 (12.5) | 9.0 |
| N-20X-TIR | 20x | 0.30 | 10.0 | 17.0 | 6.3 (6.3) | 6.0 |
| N-20X-APO-IR | 20x | 0.35 | 10.0 | 6.8 | 5.2 (5.2) | 4.0 |
| N-40X-TIR | 40x | 0.60 | 5.0 | 3.0 | 6.9 (6.9) | 1.5 |
| N-80X-TIR | 80x | 0.90 | 2.5 | 0.3 | 4.5 (4.5) | 0.7 |
| | Model | Description |
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N-20X-APO-IR
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Precision Objective Lens, 20x, 0.35 NA, 10.0mm Focal Length, Near Infrared
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N-20X-LD
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Precision Objective Lens, 20x, 0.30 NA, 10.0mm Focal Length, Visible
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N-20X-TIR
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Precision Objective Lens, 20x, 0.25 NA, 25.0mm Focal Length, Near Infrared
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N-40X-LD
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Precision Objective Lens, 40x, 0.60 NA, 5.0mm Focal Length, Visible
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N-40X-TIR
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Precision Objective Lens, 40x, 0.60 NA, 5.0mm Focal Length, Near Infrared
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N-80X-TIR
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Precision Objective Lens, 80x, 0.90 NA, 2.5mm Focal Length, Near Infrared
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N-8X-TIR
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Precision Objective Lens, 8x, 0.25 NA, 25.0mm Focal Length, Near Infrared
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