What Uses Light Sensors

For example they can detect the amount of light in a room and raise lower the blinds or switch on off the lights automatically to improve the comfort level in a room.

What uses light sensors. The most common use for a Light Sensor on a competition robot is for the sensor to serve as a photogate. Light sensors have several uses in industrial and everyday consumer applications. Humans have two eyes that collect light that falls on objects in front of them and helps them to see the objects.

This helps in better processing of lost goods and tracking of personnel. Made from single-crystal silicon PN junctions a photovoltaic cell has a very large light sensitive region. Light-dependent resistors are also known as the photoresistors these light sensors are used in the different engineering projects to control the light strength for different components.

The bulbs sensor identifies the presence of morning light and turns off at dawn before illuminating again at dusk. The Light Sensor can be used for measurements of light intensity in a variety of situations. Photovoltaic cells work best using the suns energy and applications include calculators and satellites.

The most common photovoltaic light sensor is a solar cell that converts light energy into DC electrical energy in voltage or current. The Ambient Light Sensor ALS products from ams provide measurements of ambient light intensity which match the human eyes response to light under a variety of lighting conditions. Commonly used in circuits for shipment cargos light sensors are connected to circuits and placed inside as it can detect whenever a container is open due to the change in light exposure.

Another commonplace use for light sensors is controlling automatic lights in automobiles and streetlamps. Using a light sensor to trigger a bulb when it is dark outside saves the slight hassle of turning on the lights and saves power in the day when the sun is bright enough. Perform inverse square light intensity experiments using a point source of light Conduct polarized filter studies Demonstrate the flicker of fluorescent lamps and other lamps.

Each device has a specific operating range of performance from very low light up to bright sunlight. The automatic light sensor circuit can be used for controlling the electrical appliances such as light fan cooler air conditioner street light etc automatically. An ambient light sensor is one of the several types of environmental sensors that allow apps to respond to changes in the users environment.