The US mobile phone giant Motorola has patented a cellphone that kills bacteria lodged in the microphone and earpiece cavities. The phone contains an LED that radiates ultra-violet light with a wavelength of 250 nanometres, which is particularly lethal to bacteria.
Optical guides inside the phone body steer the UV light into the cavities and sanitising takes just three minutes.
Motorola has said this is a novel way to kill bugs, as squirting germicide into the holes can damage the internal electronics of a cellphone.
Also to protect the owner against UV exposure, the light only shines when a flip cover is closed over the cavities, and to save battery drain, the light is only activated when the phone is being charged.
According to New Scientist, Motorola has also made an alternative design, in which the phone comes with a charger, which contains a UV lamp with “light pipes” that channel light into the phone when it is sitting in its cradle. (ANI)Tags:LED, Motorola
Posted on December 19th, 2006 in Cellphones, Miscellaneous News| No Comments »