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.
abfarid
joined 1 year 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.
Yeah, it's absolutely clear that nothing is clear about its operation.
If I understood correctly, it captures visible light to use it for the amplification of the IR spectrum.
Now that I've read my own comment, I see that it came off harsher then I intended it to. Interpret it literally and not like a sarcastic statement.
Btw, just occurred to me that these would probably not work in a car at all, because regular glass is usually opaque to IR.
Do modern headlights emit IR? I don't think so. Which means these IR amplifiers wouldn't change the intensity of headlights.
Apps can't "scrape your device for useful information". Modern apps are sandboxed and only have access to what you gave them permission to. Usually, they just gather the information from within the app. What you clicked, when you clicked, why you clicked, etc. If you give the app permission to location data and contacts, then they'll grab those, too, but you always have the option not to.
This is why companies, like Google, Amazon, Meta, try to push their own devices, they can have full access to your data.
Sure, it's a fair criticism that they are trying to push a subscription. Coin is a little archaic, I personally never even have cash with me, but they could have an NFC tap for a single purchase.
But their subscription approach also makes sense and would benefit some frequent visitors. I assume it means you can use the subscription on all of their machines. And there's simply no easy way of doing that other than using an app. Could be a web app with QR code, I suppose.
I don't quite understand the issue here. The tap water is still free and doesn't require anything, just press the button. They added an extra feature that is paid, which requires maintenance and power to run. I can see how it could be paid by the venue hosting this device, but you can't really blame the provider.
I think you got downvoted because the way you said it implies that all 3rd party repair shops are shady. But it's true, that the vast majority of repair shops are shady in places that I have lived.
He's not illiterate, he's just too cool to care about that nerd stuff.
I can't say I have any experience with PVS-14 or any Night Optical Devices, but from what I see online, it amplifies certain visible spectrum as well as near-IR. It doesn't seem to rely on IR much. And red dot sights aren't even IR are they? At least not entirely, cause you can see them with the naked eye.
Regarding glass being opaque to IR, apparently, it depends on the type of glass. I just remembered it from a Vsauce video (IIRC) where it was demonstrated to be opaque. But since term IR is vague and doesn't have super defined borders, and there are different types of glass, yeah, it's not a certain statement.