Photocells: Difference between revisions
Content deleted Content added
m merge? |
No edit summary |
||
| Line 1: | Line 1: | ||
A photocell is a device that uses the photoelectric effect to convert energy from sunlight into electrical energy. These devices include photovoltaic, or solar cells. Other examples are photoconductive cells and phototubes. |
A photocell is a device that uses the photoelectric effect to convert energy from sunlight into electrical energy. These devices include photovoltaic, or solar cells. Other examples are photoconductive cells and phototubes. |
||
{{merge|solar panels}} |
{{merge|solar panels}} |
||
Photocells can also be another device--variable resistor depending on intensity of electromagnetic waves. |
|||
Such photocells can be used as light-dependant resistors, and infra-red detectors. |
|||
These are commonly used for automatic doors to detect whether to close or not, some can be found in toys. |
|||
Source: http://www.futurlec.com/Photocells.shtml |
|||
Revision as of 16:16, 27 March 2006
A photocell is a device that uses the photoelectric effect to convert energy from sunlight into electrical energy. These devices include photovoltaic, or solar cells. Other examples are photoconductive cells and phototubes.
 |
Photocells can also be another device--variable resistor depending on intensity of electromagnetic waves. Such photocells can be used as light-dependant resistors, and infra-red detectors. These are commonly used for automatic doors to detect whether to close or not, some can be found in toys.