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41 relations: Angular diameter, Angular resolution, Binoculars, Cardinal point (optics), Cartesian coordinate system, Diffraction-limited system, Digital data, Dimensionless quantity, Dioptre, Dynameter, Enlarger, Exit pupil, Eyepiece, Focal length, Image, Image sensor, Inch, Lens (optics), Magnifying glass, Microscope, Numerical aperture, Objective (optics), Oil immersion, Optical instrument, Optical power, Optical telescope, Perspective (graphical), Photographic film, Plus and minus signs, Primary mirror, Printing, Real image, Reflecting telescope, Refracting telescope, Screen magnifier, Slide projector, Telescope, Thin lens, Trigonometry, Virtual image, Visual system.
Angular diameter
The angular diameter, angular size, apparent diameter, or apparent size is an angular measurement describing how large a sphere or circle appears from a given point of view.
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Angular resolution
Angular resolution or spatial resolution describes the ability of any image-forming device such as an optical or radio telescope, a microscope, a camera, or an eye, to distinguish small details of an object, thereby making it a major determinant of image resolution.
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Binoculars
Binoculars or field glasses are two telescopes mounted side-by-side and aligned to point in the same direction, allowing the viewer to use both eyes (binocular vision) when viewing distant objects.
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Cardinal point (optics)
In Gaussian optics, the cardinal points consist of three pairs of points located on the optical axis of a rotationally symmetric, focal, optical system.
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Cartesian coordinate system
A Cartesian coordinate system is a coordinate system that specifies each point uniquely in a plane by a pair of numerical coordinates, which are the signed distances to the point from two fixed perpendicular directed lines, measured in the same unit of length.
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Diffraction-limited system
The resolution of an optical imaging system a microscope, telescope, or camera can be limited by factors such as imperfections in the lenses or misalignment.
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Digital data
Digital data, in information theory and information systems, is the discrete, discontinuous representation of information or works.
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Dimensionless quantity
In dimensional analysis, a dimensionless quantity is a quantity to which no physical dimension is assigned.
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Dioptre
A dioptre (British spelling) or diopter (American spelling) is a unit of measurement of the optical power of a lens or curved mirror, which is equal to the reciprocal of the focal length measured in metres.
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Dynameter
A dynameter is an instrument that measures the magnification of a telescope.
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Enlarger
An enlarger is a specialized transparency projector used to produce photographic prints from film or glass negatives, or from transparencies.
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Exit pupil
In optics, the exit pupil is a virtual aperture in an optical system.
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Eyepiece
An eyepiece, or ocular lens, is a type of lens that is attached to a variety of optical devices such as telescopes and microscopes.
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Focal length
The focal length of an optical system is a measure of how strongly the system converges or diverges light.
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Image
An image (from imago) is an artifact that depicts visual perception, for example, a photo or a two-dimensional picture, that has a similar appearance to some subject—usually a physical object or a person, thus providing a depiction of it.
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Image sensor
An image sensor or imaging sensor is a sensor that detects and conveys the information that constitutes an image.
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Inch
The inch (abbreviation: in or &Prime) is a unit of length in the (British) imperial and United States customary systems of measurement now formally equal to yard but usually understood as of a foot.
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Lens (optics)
A lens is a transmissive optical device that focuses or disperses a light beam by means of refraction.
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Magnifying glass
A magnifying glass (called a hand lens in laboratory contexts) is a convex lens that is used to produce a magnified image of an object.
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Microscope
A microscope (from the μικρός, mikrós, "small" and σκοπεῖν, skopeîn, "to look" or "see") is an instrument used to see objects that are too small to be seen by the naked eye.
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Numerical aperture
In optics, the numerical aperture (NA) of an optical system is a dimensionless number that characterizes the range of angles over which the system can accept or emit light.
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Objective (optics)
In optical engineering, the objective is the optical element that gathers light from the object being observed and focuses the light rays to produce a real image.
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Oil immersion
In light microscopy, oil immersion is a technique used to increase the resolving power of a microscope.
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Optical instrument
An optical instrument either processes light waves to enhance an image for viewing, or analyzes light waves (or photons) to determine one of a number of characteristic properties.
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Optical power
Optical power (also referred to as dioptric power, refractive power, focusing power, or convergence power) is the degree to which a lens, mirror, or other optical system converges or diverges light.
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Optical telescope
An optical telescope is a telescope that gathers and focuses light, mainly from the visible part of the electromagnetic spectrum, to create a magnified image for direct view, or to make a photograph, or to collect data through electronic image sensors.
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Perspective (graphical)
Perspective (from perspicere "to see through") in the graphic arts is an approximate representation, generally on a flat surface (such as paper), of an image as it is seen by the eye.
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Photographic film
Photographic film is a strip or sheet of transparent plastic film base coated on one side with a gelatin emulsion containing microscopically small light-sensitive silver halide crystals.
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Plus and minus signs
The plus and minus signs (+ and −) are mathematical symbols used to represent the notions of positive and negative as well as the operations of addition and subtraction.
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Primary mirror
A primary mirror (or primary) is the principal light-gathering surface (the objective) of a reflecting telescope.
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Printing
Printing is a process for reproducing text and images using a master form or template.
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Real image
In optics, a real image is an image which is located in the plane of convergence for the light rays that originate from a given object.
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Reflecting telescope
A reflecting telescope (also called a reflector) is a telescope that uses a single or a combination of curved mirrors that reflect light and form an image.
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Refracting telescope
A refracting telescope (also called a refractor) is a type of optical telescope that uses a lens as its objective to form an image (also referred to a dioptric telescope).
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Screen magnifier
A screen magnifier is software that interfaces with a computer's graphical output to present enlarged screen content.
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Slide projector
A slide projector is an opto-mechanical device for showing photographic slides.
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Telescope
A telescope is an optical instrument that aids in the observation of remote objects by collecting electromagnetic radiation (such as visible light).
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Thin lens
In optics, a thin lens is a lens with a thickness (distance along the optical axis between the two surfaces of the lens) that is negligible compared to the radii of curvature of the lens surfaces.
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Trigonometry
Trigonometry (from Greek trigōnon, "triangle" and metron, "measure") is a branch of mathematics that studies relationships involving lengths and angles of triangles.
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Virtual image
In optics, a virtual image is an image formed when the outgoing rays from a point on an object always diverge.
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Visual system
The visual system is the part of the central nervous system which gives organisms the ability to process visual detail, as well as enabling the formation of several non-image photo response functions.
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Angular Magnification, Angular magnification, Auxometer, Demagnification, Lateral magnification, Linear Magnification, Linear magnification, Magnify, Transverse magnification.
References
[1] https://en.wikipedia.org/wiki/Magnification
