• Death_Equity@lemmy.world
    link
    fedilink
    English
    arrow-up
    10
    arrow-down
    2
    ·
    5 months ago

    IR is heat, so headlights produce a a lot of IR. Laser headlights emit less IR with the visible light, but radiate heat.

    • Farid@startrek.website
      link
      fedilink
      English
      arrow-up
      10
      arrow-down
      1
      ·
      edit-2
      5 months ago

      Well, IR isn’t heat, but it’s associated with it. And since laser and LED lights heat up a little bit, yes, they of course produce a miniscule amount of IR. But it’s pretty much negligible in comparison to their visible spectrum emissions. If you’re already being blinded by the visible range of the laser, the IR part isn’t gonna do much.

        • Farid@startrek.website
          link
          fedilink
          English
          arrow-up
          9
          arrow-down
          1
          ·
          5 months ago

          Fair enough, I was being too vague with my statement. I was implying that they don’t emit much IR, as all bodies above 0 Kelvin do emit it. And LED/laser headlights almost don’t, in comparison to xenon and stuff. I looked up some Xe emission graphs and some even straight up show the peak in near-IR, while laser/LED starts flatting out way before NIR.