numerical aperture उदाहरण वाक्य

The sine of this maximum angle is the numerical aperture ( NA ) of the fiber.
State of the art objectives can have a numerical aperture of up to 0.95.
The resolution limit forumula used is 0.6 * wavelength / ( numerical aperture ).
In this method, multiple spatially modulated illumination patterns are used to double the effective numerical aperture.
Also termed immersion lithography, this enables the use of optics with numerical apertures exceeding 1.0.

This ratio is related to the image-space numerical aperture when the lens is focused at infinity.
Based on the diagram at the right, the image-space numerical aperture of the lens is:
Manufacturers have also introduced ever larger and more expensive lenses as a means of increasing the numerical aperture.
Beyond 7 nm, EUV would require a higher numerical aperture ( NA ) or else a shorter wavelength.
In conventional microscopes the limit is determined by the used wavelength and the numerical aperture of the optical system.