This LDR 5mm Light Dependent Resistor PhotoResistor changes
resistance with the change in the ambient light exposed on the surface
of the sensor.
LDR (Light Dependent Resistor) is a type of photocell
which finds excellent use in light sensing device application, whether
it is automatic outdoor light ON/OFF switch or Indoor automatic light
switch.
The LDR 5mm Light Dependent Resistor PhotoResistor
sensor works best in both Light and dark region. Light-dependent
resistors or photoresistors are a staple of electronics. If you need a
way to sense the level of ambient light then there is no easier way to
do it. As the light on the sensor increases then the resistance across
the two leads decreases.
Two Cadmium Sulphide (CDs) PhotoConductive Cells with spectral
responses similar to that of the human eye. The Cell resistance falls
with increasing light intensity. An application includes smoke
detection, Automatic lighting control, batch counting, and burglar alarm
systems.
WHAT IS PHOTO-RESISTOR??
Analog Applications:
- Camera Exposure control
- Auto slide focus – dual cell
- Photocopy machines – the density of the toner
- Colorimetric Test Equipment
- Densitometer
- Electronics scales – dual cell
- Automatic gain control – modulated light source
- Automated Rear View Mirror
Digital Applications:
- Automatic Headlight Dimmer
- Nightlight control
- Oil burner flame out
- Streetlight control
- Absence / Presence (Beam breaker)
- Position sensor
No Guarantee No Warranty
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