57 relations: Analog computer, Aperture, Architectural lighting design, Cadmium sulfide, Camera, Canon Inc., Cardioid, Cinematographer, Cinematography, Colorimetry, Cone, Densitometer, Digital data, Electric battery, Exposure (photography), Exposure value, F-number, Film speed, Galvanometer, Gray card, Illuminance, Integrating sphere, Kenko (company), Konica Minolta, Lambert's cosine law, Landscape photography, Light fixture, Light value, Lighting, Liquid-crystal display, Luminance, Luminosity function, Lux, Minolta, Neutral-density filter, Nikon, Orthochromasia, PDF, Pentax, Photodetector, Photography, Photometer, Photometry (optics), Photomultiplier, Photoresistor, Photovoltaics, PIN diode, Radiometry, Reflectance, Refractive index, ..., Scenic design, Selenium, Selenium meter, Shutter speed, Silicon, Trigonometric functions, Zone System. Expand index (7 more) » « Shrink index
An analog computer or analogue computer is a form of computer that uses the continuously changeable aspects of physical phenomena such as electrical, mechanical, or hydraulic quantities to model the problem being solved.
In optics, an aperture is a hole or an opening through which light travels.
Architectural lighting design is a field within architecture, interior design and electrical engineering that is concerned with the design of lighting systems, including natural light, electric light, or both, to serve human needs.
Cadmium sulfide is the inorganic compound with the formula CdS.
A camera is an optical instrument for recording or capturing images, which may be stored locally, transmitted to another location, or both.
is a Japanese multinational corporation specializing in the manufacture of imaging and optical products, including cameras, camcorders, photocopiers, steppers, computer printers and medical equipment. It's headquartered in Ōta, Tokyo, Japan."." Canon. Retrieved on 13 January 2009. Canon has a primary listing on the Tokyo Stock Exchange and is a constituent of the TOPIX index. It has a secondary listing on the New York Stock Exchange.
A cardioid (from the Greek καρδία "heart") is a plane curve traced by a point on the perimeter of a circle that is rolling around a fixed circle of the same radius.
A cinematographer or director of photography (sometimes shortened to DP or DOP) is the chief over the camera and light crews working on a film, television production or other live action piece and is responsible for making artistic and technical decisions related to the image.
Cinematography (also called Direction of Photography) is the science or art of motion-picture photography by recording light or other electromagnetic radiation, either electronically by means of an image sensor, or chemically by means of a light-sensitive material such as film stock.
Colorimetry is "the science and technology used to quantify and describe physically the human color perception." It is similar to spectrophotometry, but is distinguished by its interest in reducing spectra to the physical correlates of color perception, most often the CIE 1931 XYZ color space tristimulus values and related quantities.
A cone is a three-dimensional geometric shape that tapers smoothly from a flat base (frequently, though not necessarily, circular) to a point called the apex or vertex.
A densitometer is a device that measures the degree of darkness (the optical density) of a photographic or semitransparent material or of a reflecting surface.
Digital data, in information theory and information systems, is the discrete, discontinuous representation of information or works.
An electric battery is a device consisting of one or more electrochemical cells with external connections provided to power electrical devices such as flashlights, smartphones, and electric cars.
In photography, exposure is the amount of light per unit area (the image plane illuminance times the exposure time) reaching a photographic film or electronic image sensor, as determined by shutter speed, lens aperture and scene luminance.
In photography, exposure value (EV) is a number that represents a combination of a camera's shutter speed and f-number, such that all combinations that yield the same exposure have the same EV (for any fixed scene luminance).
The f-number of an optical system (such as a camera lens) is the ratio of the system's focal length to the diameter of the entrance pupil.
Film speed is the measure of a photographic film's sensitivity to light, determined by sensitometry and measured on various numerical scales, the most recent being the ISO system.
A galvanometer is an electromechanical instrument used for detecting and indicating electric current.
A gray card is a middle gray reference, typically used together with a reflective light meter, as a way to produce consistent image exposure and/or color in film and photography.
In photometry, illuminance is the total luminous flux incident on a surface, per unit area.
An integrating sphere (also known as an Ulbricht sphere) is an optical component consisting of a hollow spherical cavity with its interior covered with a diffuse white reflective coating, with small holes for entrance and exit ports.
is a Japanese manufacturer and trading company of photographic accessories, especially known for its teleconverters and filters.
is a Japanese multinational technology company headquartered in Marunouchi, Chiyoda, Tokyo, with offices in 49 countries worldwide.
In optics, Lambert's cosine law says that the radiant intensity or luminous intensity observed from an ideal diffusely reflecting surface or ideal diffuse radiator is directly proportional to the cosine of the angle θ between the direction of the incident light and the surface normal.
Landscape photography shows spaces within the world, sometimes vast and unending, but other times microscopic.
A light fixture (US English), light fitting (UK English), or luminaire is an electrical device that contains an electric lamp that provides illumination.
In photography, light value has been used to refer to a “light level” for either incident or reflected light, often on a base-2 logarithmic scale.
Lighting or illumination is the deliberate use of light to achieve a practical or aesthetic effect.
A liquid-crystal display (LCD) is a flat-panel display or other electronically modulated optical device that uses the light-modulating properties of liquid crystals.
Luminance is a photometric measure of the luminous intensity per unit area of light travelling in a given direction.
A luminosity function or luminous efficiency function describes the average spectral sensitivity of human visual perception of brightness.
The lux (symbol: lx) is the SI derived unit of illuminance and luminous emittance, measuring luminous flux per unit area.
was a Japanese manufacturer of cameras, camera accessories, photocopiers, fax machines, and laser printers.
In photography and optics, a neutral-density filter, or ND filter, is a filter that reduces or modifies the intensity of all wavelengths, or colors, of light equally, giving no changes in hue of color rendition.
(or), also known just as Nikon, is a Japanese multinational corporation headquartered in Tokyo, Japan, specializing in optics and imaging products.
In chemistry, orthochromasia is the property of a dye or stain to not change color on binding to a target, as opposed to metachromatic stains which change color.
The Portable Document Format (PDF) is a file format developed in the 1990s to present documents, including text formatting and images, in a manner independent of application software, hardware, and operating systems.
is a brand name used primarily by Japanese multinational imaging and electronics company Ricoh for cameras, sport optics (including binoculars and rifle scopes), and CCTV optics.
Photosensors or photodetectors are sensors of light or other electromagnetic energy.
Photography is the science, art, application and practice of creating durable images by recording light or other electromagnetic radiation, either electronically by means of an image sensor, or chemically by means of a light-sensitive material such as photographic film.
A photometer, generally, is an instrument that measures light intensity or the optical properties of solutions or surfaces.
Photometry is the science of the measurement of light, in terms of its perceived brightness to the human eye.
Photomultiplier tubes (photomultipliers or PMTs for short), members of the class of vacuum tubes, and more specifically vacuum phototubes, are extremely sensitive detectors of light in the ultraviolet, visible, and near-infrared ranges of the electromagnetic spectrum.
A photoresistor (or light-dependent resistor, LDR, or photo-conductive cell) is a light-controlled variable resistor.
Photovoltaics (PV) is a term which covers the conversion of light into electricity using semiconducting materials that exhibit the photovoltaic effect, a phenomenon studied in physics, photochemistry, and electrochemistry.
A PIN diode is a diode with a wide, undoped intrinsic semiconductor region between a p-type semiconductor and an n-type semiconductor region.
Radiometry is a set of techniques for measuring electromagnetic radiation, including visible light.
Reflectance of the surface of a material is its effectiveness in reflecting radiant energy.
In optics, the refractive index or index of refraction of a material is a dimensionless number that describes how light propagates through that medium.
Scenic design (also known as scenography, stage design, set design, or production design) is the creation of theatrical, as well as film or television scenery.
Selenium is a chemical element with symbol Se and atomic number 34.
A selenium meter is a light-measuring instrument based on the photoelectric properties of selenium.
In photography, shutter speed or exposure time is the length of time when the film or digital sensor inside the camera is exposed to light, also when a camera's shutter is open when taking a photograph.
Silicon is a chemical element with symbol Si and atomic number 14.
In mathematics, the trigonometric functions (also called circular functions, angle functions or goniometric functions) are functions of an angle.
The Zone System is a photographic technique for determining optimal film exposure and development, formulated by Ansel Adams and Fred Archer.