numerical aperture उदाहरण वाक्य
उदाहरण वाक्य
- If the space between the objective lens and the specimen is filled with oil however, the numerical aperture can obtain values greater than unity.
- By recording data with a numerical aperture objective of 1.4 NA and a wavelength of a capacity of 360 TBytes can be achieved.
- In this case, the numerical aperture is related to what is sometimes called the " working-number " or " effective-number ".
- This refers to the numerical aperture with respect to the extreme exit angle of a ray emerging from a fiber in which equilibrium mode distribution has been established.
- With an optical microscope having a high numerical aperture and using oil immersion, the best possible resolution is 200 nm corresponding to a magnification of around 1200?
- For a high numerical aperture lens, equivalent to a wide aperture, the depth of field is small ( shallow focus ) and gives good optical sectioning.
- Without this oil layer, not only is maximum numerical aperture not realized, but the condenser mat not be able to precisely focus light on the object.
- A stable trap requires that the gradient force, which is dependent upon the numerical aperture ( NA ) of the objective, be greater than the scattering force.
- Numerical aperture for microscope lenses typically ranges from 0.10 to 1.25, corresponding to focal lengths of about 40 mm to 2 mm, respectively.
- In a medium with an index of refraction close to 1, such as air, the angular aperture is approximately equal to twice the numerical aperture of the lens.