microscope objective वाक्य
उदाहरण वाक्य
मोबाइल
- Microscope objectives are characterized by two parameters : magnification and numerical aperture.
- Commonly, a microscope objective is used to collect the object wave front.
- Microscope objectives are characterized by two parameters, namely, magnification and numerical aperture.
- If a slightly lower optical resolution is acceptable, the microscope objective may be entirely removed.
- Simulations show that such aberration-free designs are applicable to high-numerical aperture lenses such as flat microscope objectives.
- PSF Lab can also simulate microscope objectives that are corrected for certain refractive indices and cover slip thicknesses ( design parameters ).
- This new type of glass made possible a new class of microscope objective, the apochromatic ( often abbreviated'apo').
- Typical biological microscope objectives are designed for use with No . 1.5 cover slips ( 0.17 mm thickness ).
- Similar to microscope objectives, they provide magnifications of 4X-10X and 2X-6X respectively when mounted on the FD Auto Bellows.
- However, as the microscope objective is only used to collect light and not to form an image, it may be replaced by a simple lens.
- In a laboratory environment, a bare fiber end is coupled using a fiber launch system, which uses a microscope objective lens to focus the light down to a fine point.
- The best telescope objectives, and photographic objectives intended for three-color work, are also apochromatic, even if they do not possess quite the same quality of correction as microscope objectives do.
- :( 1 ) Largest aperture; necessary corrections are for the axis point, and sine condition; errors of the field of view are almost disregarded; example high-power microscope objectives.
- Where the numerical aperture is defined as \ mathrm { NA } = n \ sin \ theta \; for ? being the half-angle of the cone of rays accepted by the microscope objective.
- In practice, the most commonly used configuration is to use a microscope objective lens for focusing the beam, and an aperture made by punching a small, precise, hole in a piece of thick metal foil.
- Although the same microscope objective with a numerical aperture of 1.49 is used, it is clear that the confocal point spread function is more compact both in the lateral dimensions ( x, y ) and the axial dimension ( z ).
- In global imaging, the whole field of view of the microscope objective is acquired at the same time compared to point-by-point techniques where either the sample or the excitation laser needs to be moved in order to reconstruct a map.
- E . Abbe succeeded in computing microscope objectives free from error of the axis point and satisfying the sine condition for several colors, which therefore, according to his definition, were " aplanatic for several colors "; such systems he termed " apochromatic ".
- As I had already spent an hour diagnosing and fixing an issue that prevented their 40X microscope objective lens from focusing, and being several floors deep into their intimidating multifloor ( probably $ 7000 / mo rent ) basement apartment underneath an Upper West Side brownstone, I was struck with indecisiveness and intense anxiety when they gave me the textbook I would be teaching from.
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