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Photometer

Index Photometer

A photometer, generally, is an instrument that measures light intensity or the optical properties of solutions or surfaces. [1]

50 relations: Absorption (electromagnetic radiation), Algorithm, Analytical chemistry, Beer–Lambert law, Biochemistry, Camera, Electromagnetic spectrum, Exposure (photography), Fluorescence, Fourier transform, Gas, Grating, Illuminance, Infrared, Interferometry, Irradiance, Light, Light meter, Luminescence, Luminous flux, Metering mode, Microtiter plate, Monochromator, Monochrome, Optical filter, Optical properties, Phosphorescence, Photodetector, Photodiode, Photography, Photometry (optics), Photomultiplier, Photon, Photoresistor, Potassium bromide, Prism, Radiant flux, Radio frequency, Radiometry, Raman spectroscopy, Reflectance, Reflection (physics), Remote sensing, Scattering, Spectrophotometry, Spectroscopy, Spectrum, Ultraviolet, Wavelength, X-ray.

Absorption (electromagnetic radiation)

In physics, absorption of electromagnetic radiation is the way in which the energy of a photon is taken up by matter, typically the electrons of an atom.

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Algorithm

In mathematics and computer science, an algorithm is an unambiguous specification of how to solve a class of problems.

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Analytical chemistry

Analytical chemistry studies and uses instruments and methods used to separate, identify, and quantify matter.

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Beer–Lambert law

The Beer–Lambert law, also known as Beer's law, the Lambert–Beer law, or the Beer–Lambert–Bouguer law relates the attenuation of light to the properties of the material through which the light is travelling.

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Biochemistry

Biochemistry, sometimes called biological chemistry, is the study of chemical processes within and relating to living organisms.

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Camera

A camera is an optical instrument for recording or capturing images, which may be stored locally, transmitted to another location, or both.

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Electromagnetic spectrum

The electromagnetic spectrum is the range of frequencies (the spectrum) of electromagnetic radiation and their respective wavelengths and photon energies.

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Exposure (photography)

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.

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Fluorescence

Fluorescence is the emission of light by a substance that has absorbed light or other electromagnetic radiation.

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Fourier transform

The Fourier transform (FT) decomposes a function of time (a signal) into the frequencies that make it up, in a way similar to how a musical chord can be expressed as the frequencies (or pitches) of its constituent notes.

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Gas

Gas is one of the four fundamental states of matter (the others being solid, liquid, and plasma).

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Grating

A grating is any regularly spaced collection of essentially identical, parallel, elongated elements.

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Illuminance

In photometry, illuminance is the total luminous flux incident on a surface, per unit area.

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Infrared

Infrared radiation (IR) is electromagnetic radiation (EMR) with longer wavelengths than those of visible light, and is therefore generally invisible to the human eye (although IR at wavelengths up to 1050 nm from specially pulsed lasers can be seen by humans under certain conditions). It is sometimes called infrared light.

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Interferometry

Interferometry is a family of techniques in which waves, usually electromagnetic waves, are superimposed causing the phenomenon of interference in order to extract information.

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Irradiance

In radiometry, irradiance is the radiant flux (power) received by a surface per unit area.

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Light

Light is electromagnetic radiation within a certain portion of the electromagnetic spectrum.

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Light meter

A light meter is a device used to measure the amount of light.

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Luminescence

Luminescence is emission of light by a substance not resulting from heat; it is thus a form of cold-body radiation.

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Luminous flux

In photometry, luminous flux or luminous power is the measure of the perceived power of light.

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Metering mode

In photography, the metering mode refers to the way in which a camera determines exposure.

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Microtiter plate

A microtiter plate (spelled Microtiter is a registered trade name in the United States) or microplate or microwell plate or multiwell, is a flat plate with multiple "wells" used as small test tubes.

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Monochromator

A monochromator is an optical device that transmits a mechanically selectable narrow band of wavelengths of light or other radiation chosen from a wider range of wavelengths available at the input.

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Monochrome

Monochrome describes paintings, drawings, design, or photographs in one color or values of one color.

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Optical filter

An optical filter is a device that selectively transmits light of different wavelengths, usually implemented as a glass plane or plastic device in the optical path, which are either dyed in the bulk or have interference coatings.

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Optical properties

The optical properties of a material define how it interacts with light.

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Phosphorescence

Phosphorescence is a type of photoluminescence related to fluorescence.

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Photodetector

Photosensors or photodetectors are sensors of light or other electromagnetic energy.

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Photodiode

A photodiode is a semiconductor device that converts light into an electrical current.

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Photography

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.

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Photometry (optics)

Photometry is the science of the measurement of light, in terms of its perceived brightness to the human eye.

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Photomultiplier

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.

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Photon

The photon is a type of elementary particle, the quantum of the electromagnetic field including electromagnetic radiation such as light, and the force carrier for the electromagnetic force (even when static via virtual particles).

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Photoresistor

A photoresistor (or light-dependent resistor, LDR, or photo-conductive cell) is a light-controlled variable resistor.

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Potassium bromide

Potassium bromide (KBr) is a salt, widely used as an anticonvulsant and a sedative in the late 19th and early 20th centuries, with over-the-counter use extending to 1975 in the US.

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Prism

In optics, a prism is a transparent optical element with flat, polished surfaces that refract light.

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Radiant flux

In radiometry, radiant flux or radiant power is the radiant energy emitted, reflected, transmitted or received, per unit time, and spectral flux or spectral power is the radiant flux per unit frequency or wavelength, depending on whether the spectrum is taken as a function of frequency or of wavelength.

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Radio frequency

Radio frequency (RF) refers to oscillatory change in voltage or current in a circuit, waveguide or transmission line in the range extending from around twenty thousand times per second to around three hundred billion times per second, roughly between the upper limit of audio and the lower limit of infrared.

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Radiometry

Radiometry is a set of techniques for measuring electromagnetic radiation, including visible light.

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Raman spectroscopy

Raman spectroscopy (named after Indian physicist Sir C. V. Raman) is a spectroscopic technique used to observe vibrational, rotational, and other low-frequency modes in a system.

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Reflectance

Reflectance of the surface of a material is its effectiveness in reflecting radiant energy.

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Reflection (physics)

Reflection is the change in direction of a wavefront at an interface between two different media so that the wavefront returns into the medium from which it originated.

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Remote sensing

Remote sensing is the acquisition of information about an object or phenomenon without making physical contact with the object and thus in contrast to on-site observation.

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Scattering

Scattering is a general physical process where some forms of radiation, such as light, sound, or moving particles, are forced to deviate from a straight trajectory by one or more paths due to localized non-uniformities in the medium through which they pass.

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Spectrophotometry

In chemistry, spectrophotometry is the quantitative measurement of the reflection or transmission properties of a material as a function of wavelength.

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Spectroscopy

Spectroscopy is the study of the interaction between matter and electromagnetic radiation.

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Spectrum

A spectrum (plural spectra or spectrums) is a condition that is not limited to a specific set of values but can vary, without steps, across a continuum.

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Ultraviolet

Ultraviolet (UV) is electromagnetic radiation with a wavelength from 10 nm to 400 nm, shorter than that of visible light but longer than X-rays.

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Wavelength

In physics, the wavelength is the spatial period of a periodic wave—the distance over which the wave's shape repeats.

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X-ray

X-rays make up X-radiation, a form of electromagnetic radiation.

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Redirects here:

Luminometer.

References

[1] https://en.wikipedia.org/wiki/Photometer

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