The space between the focal length and the farthest object in focus. Changes depending on the f-stop and may continue to infinity.
In a sensor, the plane occupied by the detectors, and on which the radiances sensed are incident.
A plane that is perpendicular to the axis of a lens or mirror and passes through the focus.
The plane on which the image of a subject is brought to focus behind the lens. To produce a sharp picture, the lens must be focused so that this place coincides with the plane on which the film sits. Also called the film plane.
the plane or surface on which a focused lens forms a sharp image. Also called the film plane.
Plane on which a given subject is brought to a sharp focus, where the film is positioned.
in general photography the area perpendicular to the axis of the lens which intersects the rear focal point is known as the focal plane, which is the same as the film plane
the distance between the principal focus and the vertex.
n. The area where the image is focused in the camera. Also called the film plane. _______________________________________________________
The location where the rays from a distant object merge: This is where we place the detector.
a plane that is parallel to the image plane
Focusing point of a camera.
The plane (usually this is actually the surface of a sphere of large radius) where the image is formed by the main optics of the telescope. The eyepiece examines this image.
The area in a camera onto which light is focused. In a film camera, the film rests on the focal plane, in a digital video camera, the CCD rests on the focal plane.
A plane perpendicular to the axis of the lens on which an image appears to focus.
That plane whose normal provides the shortest distance between the absolute maximum and absolute minimum on the wafer surface.
The area of the camera where the lens focuses on the film or digital sensor.
Axis or geometric plane where incoming light is focused by the telescope.
A plane (through the focal point) at right angles to the principal point of the lens.
The area in space on which parallel rays of light refracted through a lens focus to form sharp images.
Usually found at the image sensor, it is a plane perpendicular to the lens axis at the point of focus.
The plane (perpendicular to the axis of the lens) in which images of points in the object field of the lens are focused.
The surface inside the camera on which a focused lens forms a sharp image.
An imaginary line drawn through the center of the light source and the lens which defines the center line of the beam and is used as a reference to measure the height of the beam above the adjacent body of water. Not to be confused with the same term, used in photography, to define the surface on which the image through the lens is focused ie. the film surface.
the plane perpendicular to the optical axis of an imaging system which contains the focal point of the imaging system.
A plane orthogonal to the optical axis of a lens at which the CCD array resides.
Plane at the focal length of a lens or concave mirror on which an object is focused.
The plane on which the image of a subject is brought to focus behind the lens. To produce a sharp picture, the lens must be focused so that this place coincides with the plane on which the image sensor sits. This point should be at the actual surface of the sensor and not the glass lid covering the sensor.
The plane perpendicular to the lens axis at the point of focus, usually found at the image sensor.
The plane created by mapping the points of convergence for rays which pass through a lens assembly from an object which is moved on a plane perpendicular to the optical axis at great distance from the lens assembly (i.e. collimated rays). For a detector to work properly, all of its active elements must be placed in the same focal plane for such an object. Otherwise, portions of the object space will appear defocused.
imaginary line perpendicular to the optical axis which passes through the focal point. It forms the plane of sharp focus when the lens is set at infinity