Assertion: led | /r/HasProperty | useful
Facets:
value: often
type: DEGREE
value: for dlp projectors
type: TRANSITIVE-OBJECT
value: in some applications
type: LOCATION
value: very
type: DEGREE
value: compared to hid lamps
type: OTHER
value: for machine vision
type: PURPOSE
Source sentences:
text: LEDs are useful for machine vision because they provide a compact, reliable source of light.
text: LEDs are also used as a light source for DLP projectors, and to backlight LCD televisions (referred to as LED TVs) and laptop displays.
text: 3 Reasons why are LEDs being used as a source of light compared to HID lamps
text: The light-emitting diode (LED) is a very useful light source.
text: For instance, light emitting diodes (LEDs) are often used as a source of light in displays and other technologies, while photodiodes are used to detect light in sensors, imaging and fiber optic communication tools.
text: An LED that can give different colours is useful in some applications.
text: Although LEDs are inappropriate for long-range optical fiber transmission, they are often useful for short range optical transmission such as remote controls, chip to chip communication, or excitation of optical amplifiers.
text: Any LED can be used as a light source for a short-range fibre-optic transmission system—that is, over a distance of less than 100 metres (330 feet).
text: LEDs are also used as a light source for DLP projectors, and to backlight LCD televisions (referred to as LED TVs) and laptop displays.