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Create pre-programmed light bulbs
which blink at 1000’s of times per second
Blinking pattern = data being transmitted
LightSpeak app decodes data from Mobile camera sensor
LightSpeak can broadcast flight information at airports
Or download railway timetable
from a public kiosk
Most mobile phones have inbuilt LED source – camera flash
This flash can be strobed to send information
Like a business card..
The receiver is a camera sensor on the other mobile
Rajeswari Kannan
Nokia Research Center

Pranav Mishra
Nokia Research Center

Pushkar Patwardhan
Nokia Research Center

Ram...
LightSpeak - Message in a Photon
LightSpeak - Message in a Photon
LightSpeak - Message in a Photon
LightSpeak - Message in a Photon
LightSpeak - Message in a Photon
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LightSpeak - Message in a Photon

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What stories can light tell us? We answer that question with an innovative camera app, Lightspeak. With this new camera technology mobile phones can snap a picture of light, and decode the messages hidden in the photons of the light. Lightspeak can democratize public spaces and fundamentally alter how consumers interact with brands. As long as you have a story tell, Lightspeak can help you deliver it.

Published in: Technology, Business
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LightSpeak - Message in a Photon

  1. 1. ….h
  2. 2. Create pre-programmed light bulbs which blink at 1000’s of times per second
  3. 3. Blinking pattern = data being transmitted
  4. 4. LightSpeak app decodes data from Mobile camera sensor
  5. 5. LightSpeak can broadcast flight information at airports
  6. 6. Or download railway timetable from a public kiosk
  7. 7. Most mobile phones have inbuilt LED source – camera flash
  8. 8. This flash can be strobed to send information
  9. 9. Like a business card..
  10. 10. The receiver is a camera sensor on the other mobile
  11. 11. Rajeswari Kannan Nokia Research Center Pranav Mishra Nokia Research Center Pushkar Patwardhan Nokia Research Center Ramesh Raskar MIT Media lab

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