Hackaday12y
Play Hide-and-go-seek With Infrared LEDs
The beacon is just a simple ATtiny13 that flashes a message with an invisible IR LED. To receive the messages, [Kurt] made a scavenger decoder shield for an Arduino. The decoder includes a ...
Hackaday4y
Using IR LEDs To Hide In Plain Sight
The spectrum of radiation visible to humans maxes out around 740nm, allowing the IR waves to remain undetected by normal observers. The project uses 940nm infrared (IR) LEDs embedded in clothes to ...
National Geographic news1y
Power of Light
Nor would it make sense for our eyes to detect light in the near infrared (though some deep ... a computer turns on the Sky Beam each night, strobe lights flash for 30 seconds.
PBS8y
Outfitting a Fighter Pilot
When a pilot ejects, his sonar beacon automatically engages ... In order to amplify his heat signal, a pilot can apply infrared tape to his flight suit, allowing rescuers to locate him quickly ...
EurekAlert!1mon
NASA terminal transmits first laser communications uplink to space
Measurement data of the power, or “fluency,” of the connection between NASA’s LCOT (Low-Cost Optical Terminal) laser beacon and TBIRD’s (TeraByte Infrared Delivery) receiver provided by ...
The Island Packet on MSN15d
How will strobe lights stop drivers as walkers cross Hilton Head’s 8-lane highway?
The new technology in pedestrian safety include RRFBs or Rectangular Rapid Flashing Beacons the town is currently installing ...
Engineering360 News6y
Illuminators Information
Strobe illuminators are pulsed. In diffused illuminators, the light of the illuminator is scattered. Scattered light de-emphasizes shadows. Collimation offers greater contrast. The light from the ...
Hosted on MSN11mon
NASA's Psyche spacecraft beams back a 'Hello' from 10 million miles away
"First light" was achieved on November 14 as the flight laser transceiver aboard Psyche locked onto the uplink laser beacon transmitted ... both radio and the near-infrared laser used by DSOC ...
Barron's7mon
Beacon Roofing Supply Hits New High After Home Depot Buys Rival
Shares of Beacon Roofing Supply rise to a new all-time high after home-improvement retailer Home Depot struck a deal to buy its privately held competitor, SRS Distribution.
PBS12y
Outfitting a Fighter Pilot
When a pilot ejects, his sonar beacon automatically engages ... In order to amplify his heat signal, a pilot can apply infrared tape to his flight suit, allowing rescuers to locate him quickly ...
Phys.org1mon
NASA terminal transmits first laser communications uplink to space
NASA's LCOT (Low-Cost Optical Terminal), a ground station made of modified commercial hardware, has transmitted its first laser communications uplink to the TBIRD (TeraByte Infrared Delivery), a ...