The phrase "axis object" is correct and usable in written English.
It can be used in contexts related to geometry, mathematics, or computer graphics, where it refers to an object that defines or is aligned with an axis.
Example: "In the 3D modeling software, the axis object helps to orient the other elements in the scene."
Alternatives: "axis entity" or "axis element".
The number of axis objects, in that frame, is retrieved, and then the number of curve objects is retrieved.
Even less is known about Peter Kent, Ivo's co-founder at 4AD – or Axis, as the label was known for the first four singles, before an existing Axis objected.
In spherical aberration, the images of an on-axis object point that fall on a plane at right angles to the optical axis are circular in shape, of varying size, and superimposed about a common centre; in coma, the images of an off-axis object point are circular in shape, of varying size, but displaced with respect to each other.
Coma, so called because a point image is blurred into a comet shape, is produced when rays from an off-axis object point are imaged by different zones of the lens.
As shown in the three-dimensional schematic the two planes at right angles to one another passing through the optical axis are the meridian plane and the sagittal plane, the meridian plane being the one containing the off-axis object point.
They also do not suffer from the aberrations seen in single lens systems when viewing off-axis objects.
Indeed, a cube centered around the optical axis in object space is transformed by a lens into a frustum shape in image space, where the apex of the frustum lies on the optical axis one focal length from the lens.
One of the implications of Snell's law is that light traveling along all paths parallel to the optical axis in object space will be bent by a spherical lens such that they pass through this tick mark.
