Designing a Passive Lidar Detector Device

(atredis.com)

82 points | by speckx 53 days ago

5 comments

  • MezzoDelCammin 49 days ago
    I admit it's a nice experiment, but I guess the title should be "detecting iPhone Lidar".

    Both the 60Hz frequency and 940nm wavelength are fairly specific. There's a whole world of different wavelengths (1550nm is fairly common) and frequencies (up to 1MHz isn't particularly exceptional).

    There's been a whole thread on the topic here:

    https://news.ycombinator.com/item?id=46110395

    • aidenn0 49 days ago
      Right, I wonder if they considered a pulse-detector with a dichroic filter and a 555?
    • MPSimmons 49 days ago
      Agreed, I immediately thought of vehicles, but this is cool too.
  • vzaliva 49 days ago
    If you are sensitive to flashing - do not try to open this link. It is impossible to read because of videos of flashing lights.
    • elric 49 days ago
      Makes me wonder about how safe lidar is for humam and animal eyeballs?
      • garbagewoman 49 days ago
        The videos are of invisible wavelengths of light transformed into visible light. Why does that make you ponder the safety of the infrared light?
      • estimator7292 48 days ago
        I have some very bad news for you about the kinds of light emitted by the sun and also your oven
    • BrianGragg 49 days ago
      Reader view ftw!
  • 486sx33 49 days ago
    [dead]
  • _jzlw 53 days ago
    [flagged]