- binoculars. Optically,
defocus refers to a
translation of the
focus along the
optical axis away from the
detection surface. In general,
defocus reduces the sharpness...
- coefficient, λ is the
electron wavelength, and Δf is the
defocus. In
transmission electron microscopy,
defocus can
easily be
controlled and
measured to high precision...
- mask
flatness in the
local slope,
coupled with
wafer defocus. More significantly, mask
defocus has been
found to
result in
large overlay errors. In particular...
- The
Nikon 105 mm DC-Nikkor and 135 mm DC-Nikkor
lenses (DC
stands for "
Defocus Control") have a
control ring that
permits the
overcorrection or undercorrection...
- use of
motion parallax, they have
instead evolved a
method called image defocus. Of the four
photoreceptor layers in the retina, the two
closest to the...
-
depth estimation algorithms based on
defocus and blurring. Some
jumping spiders are
known to use
image defocus to
judge depth. When an
object is visible...
-
probably was not
noticed on set, is now
painfully obvious to the viewers. The
defocus transition is a type of
transition accomplished by
rolling the lens focus...
-
contrasts with the
common notion that "focal
length is
twice as
important to
defocus as f/stop",
which applies to a
constant subject distance, as
opposed to...
-
useful in
drawing the eye to a
point on the page.
Under optical blur from
defocus, a
Siemens star (like any
periodic pattern)
gives rise to the phenomenon...
- W(k)=-z\lambda k^{2}/2+C_{s}\lambda ^{3}k^{4}/4} z {\displaystyle z} = the
defocus of the
objective lens (using the
convention that
underfocus is positive...
