Web Results

Photoresistor

en.wikipedia.org/wiki/Photoresistor

A photoresistor is a light-controlled variable resistor. The resistance of a photoresistor ... They are also used in some dynamic compressors together with a small ... Jump up ^ "Silonex: TO-18...

Photocells

www.me.umn.edu/courses/me2011/arduino/technotes/photocell/photocell.html

Photocells are used in automatic night lights and in street lamps that turn themselves on at night. Sometimes known as photoresistors, photocells are available ...

Photocell | Define Photocell at Dictionary.com

www.dictionary.com/browse/photocell

Photocell definition, a solid-state device that converts light into electrical ... cell, or uses light to regulate the flow of current, as in a photoconductive cell: used in ...

Application of Photocells on LED Light Fixtures - Jarvis Lights

www.jarvislights.com/application-of-photocells/

Dec 3, 2014 ... Application of Photocells. All of our LED products have the ability to work with a photocell/dusk-to-dawn sensor. This accessory can be installed ...

How does a photocell work? | Reference.com

www.reference.com/science/photocell-work-c32e7061fe01f359

The semiconductor that is used in a photocell is usually of a very high resistance. This allows the photocell to stop the flow of current completely when there is no ...

What Is a Photocell for a Light? | Techwalla.com

www.techwalla.com/articles/what-is-a-photocell-for-a-light

Photocells are commonly used in dusk-to-dawn lights. These lights turn on when the surrounding environment is dark and turn off when it becomes bright again.

Using a Photocell | Photocells | Adafruit Learning System

learn.adafruit.com/photocells/using-a-photocell

Jul 29, 2012 ... The way this works is that as the resistance of the photocell .... the range analogWrite uses; LEDbrightness = map(photocellReading, 0, 1023, 0, ...

Photocell tutorial! - Instructables

www.instructables.com/id/Photocell-tutorial/

Photocells a.k.a CdS cells, photoresistors, LDR (light dependent resistor). ... For this reason, they shouldn't be used to try to determine precise light levels in lux ...

BBC - GCSE Bitesize: Photocells

www.bbc.co.uk/schools/gcsebitesize/science/ocr_gateway_pre_2011/living_future/1_collecting_energy1.shtml

Photocells are devices that transfer light energy directly into electrical energy. ... The Hubble Space Telescope uses photocells to generate the electricity it needs  ...

Photocell | Article about photocell by The Free Dictionary

encyclopedia2.thefreedictionary.com/photocell

Find out information about photocell. see photoelectric cell photoelectric cell or ... The word photocell is now commonly used to describe photoconductive or ...

More Info

Uses of Photocells | eHow

www.ehow.com

Uses of Photocells. Photocells are semiconductors that are light detectors. They are essentially light dependent resistors, because they have an output that is ...

How do photoelectric cells work? - Explain that Stuff

www.explainthatstuff.com

Jan 27, 2016 ... ... it's used in photovoltaic, photoconductive, and photoemissive cells. ... called photocells)—electronic devices that generate electricity when ...

Photocell-Application of photoelectric effect - City Collegiate

www.citycollegiate.com

A photocell is a practical application of the phenomenon of photoelectric cell. ... A photocell can be used in any situation where beam of light falling on it is ...