User:Emily/Thematic Project/Trimester 03/11: Difference between revisions
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====Visual Light Communication==== | |||
( visible light between 400 and 800 THz(780–375 nm) | ( visible light between 400 and 800 THz(780–375 nm) | ||
Latest revision as of 21:11, 21 June 2015
Visual Light Communication
( visible light between 400 and 800 THz(780–375 nm)
Light -- message
light in different frequency -- provide different function -- the “content” of any medium is always another medium?
low frequency to high frequency -- visible to invisible
- light bulb (lighting)
- lighthouse, sos light (three times short, three time long)
- Flicker/Dreamachine/(Stroboscope: initially be used to measure motors)
- detection: Optical mouse
- VLC(Visible light communication): ByteLight / Lifi (works by switching bulbs on and off within nanoseconds)
"The electric light is pure information. It is a medium without a message, as it were, unless it is used to spell out some verbal ad or name. This fact, characteristic of all media, means that the “content” of any medium is always another medium." -- McLuhan