Sentence examples for decreasing the aperture from inspiring English sources
By decreasing the aperture radius to one fourth its original value (4 stops), you can achieve a greater depth of focus.
Decreasing the aperture by 4 stops is equivalent to dividing the radius by 4 (because one stop divides the radius by sqrt(2)).
Reducing the radius of the aperture by a factor of two means reducing the area of the aperture by a factor of 4, or decreasing the aperture by two f-stops (since one f-stop corresponds to a decrease in area by a factor of 2).
Insertion of an annular filter in the miniature objective that passes visible light, but blocks infrared light so as to decrease the aperture stop size for OCT imaging is one possible solution for realizing this goal.
Ability to increase and decrease the aperture.
The second solution consists in keeping the primary beam diameter constant and decreasing the detector input aperture.
Increasing the f/# by a factor of (sqrt {2}) halves the area of the aperture, decreasing the light throughput of the lens by a factor of 2. However, the f-number alone is not enough for the lens selection, because also a large diameter or a shorter distance (typically corresponding to a shorter focal length) increase the light collection efficiency.
Moreover, it is expected that decreasing the size of the apertures in the stencil mask would decrease the size of the catalyst deposited onto the substrate, which would in turn decrease the number of synthesized CNTs, as shown in Figure 1b.
However, the spatial smoothing decreases the array aperture and the identifiable number of targets.
Some researchers have suggested that vendors decrease the numerical aperture of their lenses or stop down the condenser – effectively trading lower maximal optical resolution for a deeper depth of field [ 19].
Using a standard Mackintosh laryngoscope blade significantly enhanced ease of insertion of the Bonfils fiberscope and visualization of the glottic aperture, thereby decreasing the procedure time from 35 40 seconds to 20 25 seconds.
