LWIR

World-class Nikon objectives, including renowned CFI60 infinity optics, deliver brilliant images of breathtaking sharpness and clarity, from ultra-low to the highest magnifications.

02.04.2022 - Technologies like MEMS and Silicon Photonics benefit from the extended capabilities of SWIR microscopy. A Whitepaper from Qipotiq explores applications like semiconductor inspection and fluorescence microscopy in further detail and how SWIR microscopes, like the Optem FUSION modular microscope, offer a flexible advantage in SWIR imaging.

NIRSWIR

Where d(tot) represents the depth of field, l is the wavelength of illuminating light, n is the refractive index of the medium (usually air (1.000) or immersion oil (1.515)) between the coverslip and the objective front lens element, and NA equals the objective numerical aperture. The variable e is the smallest distance that can be resolved by a detector that is placed in the image plane of the microscope objective, whose lateral magnification is M. Using this equation, depth of field (d(tot)) and wavelength (l) must be expressed in similar units. For example, if d(tot) is to be calculated in micrometers, l must also be formulated in micrometers (700 nanometer red light is entered into the equation as 0.7 micrometers). Notice that the diffraction-limited depth of field (the first term in the equation) shrinks inversely with the square of the numerical aperture, while the lateral limit of resolution is reduced in a manner that is inversely proportional to the first power of the numerical aperture. Thus, the axial resolution and thickness of optical sections that can be attained are affected by the system numerical aperture much more so than is the lateral resolution of the microscope.

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In photography, angle of view (AOV) describes the angular extent of a given scene that is imaged by a camera. It is used interchangeably with the more ...

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Feb 22, 2023 — If you have a triplet, the Strehl takes into account how those three lenses in the optics set interact with one other. A Strehl of 0.95 doesn't ...

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SonySWIR

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Mid infrared

At high numerical apertures of the microscope, depth of field is determined primarily by wave optics, while at lower numerical apertures, the geometrical optical circle of confusion dominates the phenomenon. Using a variety of different criteria for determining when the image becomes unacceptably sharp, several authors have proposed different formulas to describe the depth of field in a microscope. The total depth of field is given by the sum of the wave and geometrical optical depths of fields as:

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Low-Profile Motorized XY Scanning Stage ... The LPXY1 scanning stage is a drop-in replacement for the manual stages found on select microscopes. It uses stepper ...

SWIRVision Systems

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Aspheric lenses are an essential component of optical systems used in diverse applications such as condenser lenses, fluor filters, and optics laser. Bodian is ...

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Explore the approximate depth of field for common Nikon objectives with this interactive tutorial. Users have the ability to select from the current lineup of CFI60 infinity-corrected objectives as a function of aberration correction through the use of a pull-down menu.

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To operate the tutorial, first select the appropriate objective from the Choose an Objective pull-down menu. The list covers all of Nikon's current objectives in the achromat, plan achromat, plan fluorite, and plan apochromat series. Several specialized objectives are included as well. Next, use the Choose e slider to vary the smallest distance (between a value of 4 and 24 microns) that can be resolved by a detector that is placed in the image plane of the microscope objective.