Frank Lampard said:How do LEDs behave in presence of magnetic field?? Any good books or papers dealing extensively with this?? thanking in advance..
Frank Lampard said:How do LEDs behave in presence of magnetic field?? Any good books or papers dealing extensively with this?? thanking in advance..
Just to quote from that article:Creator said:pulled this off the web...very little change in high field strengths as evidenced by this report...
http://www.nicadd.niu.edu/research/extruder/extruder_files/doc/PUBLICATIONS/fermilab-tm-2308.pdf
...
quoting Creator's link said:CONCLUSIONS
Measurements performed using various LEDs in the
magnetic field point to the insensitivity of the LED’s light
output on the field strength of up to 2.3T within 1%.
When an LED is placed in the presence of a magnetic field, it can experience changes in its electrical and optical properties. This is due to the interaction between the magnetic field and the charge carriers in the LED's semiconductor material.
In most cases, a magnetic field will not cause any permanent damage to an LED. However, if the magnetic field is strong enough, it can alter the LED's characteristics, such as its brightness or color, and potentially decrease its lifespan.
The behavior of LEDs in the presence of magnetic fields can vary depending on the type of LED. For example, organic LEDs (OLEDs) are more sensitive to magnetic fields than traditional LEDs due to their organic materials, while infrared LEDs (IR LEDs) are less affected by magnetic fields.
Yes, there are several practical applications for this phenomenon. One example is using magnetic fields to control the brightness of LEDs, which can be useful in creating energy-efficient lighting systems. Magnetic fields can also be used to detect the presence of LEDs, making them useful in security systems.
Yes, it is possible to shield LEDs from magnetic fields by using materials such as mu-metal or conducting foils. However, the effectiveness of the shielding depends on the strength of the magnetic field and the type of LED. In some cases, it may be more practical to use magnetic field compensation techniques to counteract the effects of the field on the LED.