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Share! Nikon 20X interference objective lens parameters
NegotiableUpdate on 05/06
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Overview
Share! The Nikon 20X interferometric objective lens has a typical lead time of 6 to 8 months. The interferometric measurement lens can be used on non-contact optical profile measuring equipment to obtain surface bitmap and surface measurement parameters. It can also be used to detect surface roughness, with very high measurement accuracy within one wavelength. A beam of light can be directed directly towards the surface of the sample and the built-in reflector through a beam splitter. The light reflected from the surface of the sample is recombined to produce an interference pattern. Compared to Mirau lenses, Michelson lenses have a longer working distance, wider field of view, and greater depth of focus. Mir
Product Details
Share! Nikon 20X interference objective lens parameters
Share! Nikon 20X interference objective lens parameters
The delivery time is usually 3 to 5 months
| Interference objective lens | ||||||
| 2.5x | 5x | 10x | 20x | 50x | 100x | |
| Working distance (mm) | 10.3 | 9.3 | 7.4 | 4.7 | 3.4 | 2.0 |
| NA (numerical aperture) | 0.055 | 0.15 | 0.30 | 0.45 | 0.55 | 0.7 |
| FOV（mm）1 | 5093×3818 | 2546×1909 | 1270×950 | 637×477 | 254×190 | 127×95 |
| Spatial sampling (mm) 2 | 6.64 | 3.32 | 1.62 | 0.83 | 0.33 | 0.17 |
| Optical Resolution Blue (L&S) (mm) 3 | 2.55 | 0.93 | 0.46 | 0.31 | 0.25 | 0.20 |
| Optical Resolution White Light (L&S) (mm) 3 | 3.04 | 1.11 | 0.56 | 0.37 | 0.30 | 0.24 |
| Large slope 4 | 3.05o | 8.6o | 14o | 21o | 25o | 42o |
| Vertical resolution (nm) PSI7Vertical resolution (nm) ePSI7 | <0.1nm（PZT 0.01nm） | |||||
| Vertical resolution (nm) VSI7 | 1nm5mm | |||||
| Vertical range PSI (mm) | 5mm | |||||
| Vertical range ePSI (mm) | 100mm | |||||
| Vertical range VSI (mm) | 10mm | |||||
| Scanning rate (mm/s) | PSI：3-15mm/s VSI/ePSI：4-18mm/s | |||||
| General measurement time (s) 9 | PSI：3s VSI：10s ePSI：30s | |||||
The necessary analysis of the structure of the objective lens aims to help users and readers better understand it.
We will take the most basic flat field achromat and flat field apochromat objectives as examples to analyze and illustrate their internal structures.
The above figure shows a cross-sectional view of the Olympus objective lens. We can clearly see the internal structure of the objective lens from the figure. It can be seen that the interior of the microscope objective lens is composed of lens combinations, and multiple lens combinations are used to compensate for the imaging defects of a single lens and improve the optical quality of the objective lens. The magnification function of a microscope mainly depends on the objective lens, and the quality of the objective lens directly affects the image quality of the microscope. It is the main component that determines the resolution and image clarity of the microscope, so the calibration of the objective lens is very important.
The structure of the objective lens is complex and the production is precise. When purchasing, users must have a full understanding of their own usage needs and choose a legitimate merchant for purchase.
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