A new community where people can just vent about or actually do coordinate action against the pest of ultra bright LEDs.

  • werefreeatlast@lemmy.world
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    19 days ago

    If all LED headlamps followed a new polarization standard, things could be very cool. As an example, let’s say the headlights could only shine horizontally polarized light and the windshields could only pass vertically polarized light. That means that one could see every thing very clearly because you wouldn’t be blinded by the cars coming on the opposite side. Your light would illuminate everything in from of you, which would then reflect non polarized light back at you plus all other light reflections from other sources like street lamps. Houses could be fitted with the same filter film as older cars. Similarly, people could wear polarized glasses and get the same benefit.

    • AynRandLibertarian@lemmy.world
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      18 days ago

      I didn’t pay attention in physics class, why is the light reflected back not polarized? what happened to the once polarized photons that they come back non polarized?

      Also what is polarization? I know that Electro Magnetic Radiation or EMR is made up from pulsating magnetic and electrical fields that propagate through space at a fixed rate or frequency… but what does polarization mean? does it mean the fields are slanted to one side or into one direction or something? or is it like some sort of spin or other sort of modulation?

      • werefreeatlast@lemmy.world
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        18 days ago

        There’s Horizontal and vertical polarization as well as circular polarization. In a simple explanation , think of horizontal as a fence with horizontal bars so that only the horizontal part of the photons pass thru. Now once those horizontal photons pass, they will meet surfaces, which will reflect back their light so your eyes can see it. However, in this experiment only the vertical photons will pass your windshield. Because polarization depends on the angle of incidence, you will get some of the horizontally polarized light back as vertically polarized light which will pass thru. The effect is psychedelic. I totally recommend you to try it. You need polarized glasses, a flashlight and a piece of polarized film to place on your flashlight. The colors and shapes come back to you without defined form or glimmers so stuff looks normal, but weird as heck.

    • Etterra@discuss.online
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      18 days ago

      Yeah but see that would require the government to do something, and right now they can’t even tell their asses from their elbows. Oh and they’re cutting at least half the jobs. Because eFiShAnSeE.