photocell
Solar panel component
A photocell is a device that generates an electrical response when exposed to light.
Photocells are used in automatic lighting systems, security sensors, and solar panels.
The term covers several technologies—photodiodes, phototransistors, photoresistors—that convert light into electrical signals: The porch light has a photocell that turns it on at dusk.
Light-sensitive amplifying component
- photoresistorComponent resisting less when bright
- circuitClosed electrical pathway
- currentDirected flow of charge
- voltageElectrical potential difference
conductivity · cathode · anode · electron · amplification · resistance · bias · load
Device that senses
- triggerWhat initiates action
- beamStructural support member
- motionChange in position
- proximityNearness in space
alarm · security · surveillance · switch · threshold · signal · monitoring · optical
Metalloid in electronics
- semiconductorPartial electrical conductor
- panelDistinct flat section
- renewableCapable of restoration
- thin-filmUltra-shallow material layer
monocrystalline · polycrystalline · efficiency · sunlight · electrode · crystalline · junction · wafer
phototransistor
Light-sensitive amplifying component
- photoresistorComponent resisting less when bright
- circuitClosed electrical pathway
- currentDirected flow of charge
voltage · conductivity · cathode · anode · electron · amplification · resistance · bias · load · output
detector
Device that senses
proximity · alarm · security · surveillance · switch · threshold · signal · monitoring · optical · infrared
silicon
Metalloid in electronics
- semiconductorPartial electrical conductor
- panelDistinct flat section
- renewableCapable of restoration
thin-film · monocrystalline · polycrystalline · efficiency · sunlight · electrode · crystalline · junction · wafer
iso
Prefix meaning equal
luminance · calibration · incident · reflected · film · metering · brightness · reading
- building systemsHVAC, plumbing, electrical systems, heating, cooling
- light controlslight switch, dimmer, dimmer switch, wall switch, toggle switch
- low voltagetransformer, power supply, wall wart, doorbell, thermostat
- sensorsbiosensors, temperature sensor, pressure sensors, heat sensor, ammeter
- light sensorslight sensor, light meter, photodetector, photometer, phototransistor
- OptoelectronicsLED, laser, phototransistor, optical fiber, OLED
photocellLED
Semiconductor that glows
light bulb · lamp · light-emitting diode · incandescent bulb · laser diode
photocellbattery
Portable electricity storage
capacitor · accumulator · fuel cell · power cell · rechargeable battery