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Related to photocell: photovoltaic cell, solar cell




(Electronics) a device in which the photoelectric or photovoltaic effect or photoconductivity is used to produce a current or voltage when exposed to light or other electromagnetic radiation. They are used in exposure meters, burglar alarms, etc. Also called: photoelectric cell or electric eye


(ˈfoʊ toʊˌsɛl)

a solid-state electronic device that converts light into electrical energy by producing a voltage or that uses light to regulate the flow of current: used in automatic control systems for doors, burglar alarms, lighting, etc.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.photocell - a transducer used to detect and measure light and other radiationsphotocell - a transducer used to detect and measure light and other radiations
detector, sensing element, sensor - any device that receives a signal or stimulus (as heat or pressure or light or motion etc.) and responds to it in a distinctive manner
photocathode - a cathode that emits electrons when illuminated
selenium cell - a photoelectric cell that uses a strip of selenium
transducer - an electrical device that converts one form of energy into another


[ˈfəʊtəʊˌsɛl] nfotocellula
References in periodicals archive ?
It can now also has an autostart feature that with a photocell or timer allows the unit to come on automatically without the need to keep manually firing it up.
The decrease in energy consumption can be augmented with an optional photocell.
A There are two ways to effectively control exterior lighting: A timer clock and a photocell for detecting light and dark.
Dumfries and Galloway Council, who installed the lights, have blamed a faulty photocell control switch, which us suposed to turn them off when it gets light.
Each lamp has a light-sensitive photocell mechanism on top but the excrement covers it so the system thinks it is night.
With its patent pending photocell technology integrated into the head of the light, Wave Light II automatically detects the ambient light levels while adjusting the light source to the optimum settings for the environment.
The mandatory requirements also included photocell control of perimeter open office spaces with access to daylight.
She had followed advice not to touch her Iranian counterpart, Saeed Jalili, during a photocell, and had kept her arms firmly folded behind her back to avoid accidentally causing diplomatic offence to Muslims.
It can work in three modes: contact, gap (with photocell positioning) and in combined mode.
The optical arrangement is mainly a light source (polychromatic halogen lamp) and a photocell (light-dependent resistor) fitted in opposite sides of two transparent windows in the slit-die.
An integrated photocell activates light emitting diodes (LEDs) for even illumination up to 50 metres and for switching of the IR filter.
Both have a photocell and time controller to ensure thorough cleansing.