- An
aspheric lens or
asphere (often
labeled ASPH on eye pieces) is a lens
whose surface profiles are not
portions of a
sphere or cylinder. In photography...
-
Aspherical may
refer to:
Aspherical space, a
concept in
topology Aspherical lens, a type of lens ****embly used in
photography which contains an aspheric...
-
permit the driver-side
mirror to have a planar, convex, or
aspheric surface; an
aspheric section is
often combined with a
larger convex section, and...
- In topology, a
branch of mathematics, an
aspherical space is a
topological space with all
homotopy groups π n ( X ) {\displaystyle \pi _{n}(X)}
equal to...
- part, be
compensated for by an
aspheric design. The same is true for
atoric and bi-
aspheric.
While it is true that
aspheric lenses are used in
cameras and...
-
important effect,
because spherical shapes are much
easier to
produce than
aspherical ones. In many cases, it is
cheaper to use
multiple spherical elements...
- R_{g}^{2}=(\lambda _{x}^{2}+\lambda _{y}^{2}+\lambda _{z}^{2})} The
asphericity b {\displaystyle b} is
defined by b = d e f λ z 2 − 1 2 ( λ x 2 +...
-
generate chromatic aberration, and
spherical aberration if the lens is not
aspheric. More
common configurations use
three or more
elements for
achromatic correction...
-
Optical surfaces with non-spherical profiles, such as the
surfaces of
aspheric lenses, are
typically designed such that
their sag is
described by the...
-
August 2024. "FD 55mm f/1.2 S.S.C.
Aspherical".
Canon Camera Museum.
Retrieved 20
August 2024. "FD 85mm f/1.2
Aspherical".
Canon Camera Museum. Retrieved...
