Actually most of the early soviet night vision has a really bright beacon. They were sometimes even better than American ones who used thermals from the start at the time.
@vapid2233 Says:
14:24 this would explain a lot, I have a hereditary condition which causes my vision in low light to be near useless compared to someone with normal eyesight, but I learned to use my peripheral vision to be able to see just a bit better when its dark
@janellehoney-badger6525 Says:
Incredible
@jakobmorningstar Says:
8:24 I would hope you can see the Milky Way clearly, since we live inside it…
@meepk633 Says:
Firefly semen. I used to work in the factory. Very precise work.
@UniversalMarcus1483 Says:
How do night vision goggles work? More than our US Congress! Hey-oh! 🥁
@flipnnate2427 Says:
Just drink night vision potion
@samuelcosta2025 Says:
The freaking psyop
@skyhop Says:
I enjoy sitting next to my front door at night with a PVS-14 on, and watching the wild life in the middle of the night. It's a super relaxing experience.
@ZergrushEddie Says:
This is a nice explanation on why military stuff is so expensive. "40,000 for night vision! I can get those on Amazon for like 300 bucks!" Well, sure, but if you are going to be sending soldiers into an unknown area in pitch black you need somethin' a little better than Amazon Basic. To quote West Wing: "we lead a slightly different life out there and it costs a little more money."
@collinstout57 Says:
When I was deployed to Afghanistan I could see the andromeda galaxy
@l.dgffgztghhu6444 Says:
The 1st. usefull Device was the German ZG 1229 Vampir , 1944/45 made for sniper. Another Device made for AntiTankGuns&Tanks was "Zielgerät 1221". The Developement began in the 30s bei AEG. Another later Modell was the Puma FG 1250 made for Pather Tanks. Later came a better Version, the" Sperber/FG 1250". All of them are active IR Systems.
@JamesAddison-si2np Says:
Next time little Joey messes up the tie downs for his NODs, I'll have him write a paper explaining why it's crucial to secure them properly, using only this video and his paycheck as sources lol
@ivan.457 Says:
23:00 this is totally related to the Blue LED
@SydneyChromatic Says:
Does anyone know if these work over 150 mph?
@CJ7Hawk Says:
Thanks for posting such a great article on a well viewed channel. A few small errors in your article and some other comments for your readers. Firstly, low cost includes both camera/screen NV and image intensifiers ( usually 1st gen, sometimes Gen1+, as true Gen0 was the S-1 photocathode and these are quite rare now. Gen1 as Metal Alkali photocathodes. ) but for a while also inlcuded surplus Gen1 Cascade tubes which provides for three image intensifiers connected together as you mentioned was used in the Vietnam war. This technology however was first developed in WW1, by the Germans. They used optically coupled tubes, and they were somewhat effective. The US captured much of this at the end of the war and tested multistage night vision against the Japanese - so well before the Vietnam conflict. What improved this was the development of Fiber Plate technology, which is often called Gen1+ though in truth the generations didn't actually exist until Gen2, and earlier generations are often backwardly determined - the Optical Twister at the back of the Gen3 tubes you tried are an example of this so not mentioning fiber plate as the most important development in NV technology was something I'm surprised you missed. The Microchannel plate is also an example of fiber plate technology. There are videos on youtube that show how these are made. They've been public since the 60s. You asked about system gain and the best low-cost Gen1 scopes I have tested had around 200 times system gain. So low-light low-cost technology can get pretty advanced - much more than the ones you were looking at. There are also some higher priced low range cameras that use very sensitive cameras and some use black silicon sensors which is a whole new technology. In the higher range, the goggles you were using (31s) were probably around 5000x system gain, - Around 2000x is considered militarily useful, so well above that level, and they would have had a much higher signal to noise ratio that earlier technology. Microchannel plates are public information. They pull glass fibers with fibers that can be dissolved and surround these with fibers that can't be dissolved, then they slice these into wafers and dissolve the soluble glass, then coat the surfaces with metal. They've been public knowledge since the 1960s. Digital NV isn't just low-cost cameras and active illumination. It extends from super-sensitive cameras to from EBAPS (*also called EBCMOS) which is like the front-end photocathode of a night vision tube attached to the back end of a CMOS camera - they just fire the electrons straight into a CMOS sensor. These make digital devices that perform like the PVS_31s but are entirely digital in nature. They use these in military aircraft. Thermal images usually have less resolution than modern NV, but often have better zoom lenses, and of course more light, however MWIR thermal devices also exist, can be purchased, and your statement that things don't emit light in that region on earth is not correct. MWIR thermal is famous for detecting farts, and they are not active. Outside what you mentioned, there is filmless technology, which doesn't have an ion barrier film, and second generation not only kept on being developed outside of the US, but sees much further into the infrared than US made night vision. Photonis makes most of that, and it's equal to the best Gallium Arsenide based tubes, despite being "second generation" by US standards. The final concept in low-cost NV is SWIR, or between IR and MWIR. These work because of atmospheric processes that always emit light outside in this range too, and because of these, SWIR cameras can see outside at night better than much other equipment and they can also see through fog and smoke. These typically operate around 1500nm. Modern thermal cameras now start at costs for less than $100, and thermal night vision devices also exist from around the $200 mark, so these too count as low-cost consumer night vision.
@logdog4010 Says:
Fun fact, you can just buy night vision goggles. A lot of the manufacturing is secret, but the product is available to the public
@3isr3g3n Says:
So it's a fancy CRT. Lemme get my soldering iron, my old B&O CRT and a mirror.
@3isr3g3n Says:
Dude i've got a Nikon D800.. when he was like "maximum ISO of 400k" i almost did a spit take. Bor's got some serious equipment
@sahilkulria7325 Says:
what do you use to create animations and simulations used in your videos (btw huge fan of your physics and math related videos )
@martinjanoschek6867 Says:
No mention of goggles that combine I2 and IR?
@Literally_Deez_Nuts Says:
I wish I had nods.
@user-le9ue6yx3y Says:
essa dublagem ta de sacanagem em kkkkk falar que osama bin laden foi capturado em 2022
@bearsquatchadventures4356 Says:
O:51 "Gonna pull my panties down"... "WHOA"
@XxMONTAINDEWGAMER2017xX Says:
Yeah I can't really comment on this video
@mildot5482 Says:
Amplification of the light .. not enough performant.
IR is the best way
@victoryfirst2878 Says:
Will you be doing the lottery for winning the night vision goggles ??? Thanks
@kkrishnanunni857 Says:
I'm pretty sure the military is using gen 5 or 6 as they are willing to give off at least some of the information on gen 3
@rudekenj Says:
This is what I think of when I hear the phrase "military grade".
@SkidMarkSuprise Says:
“Bravo six, going dark”
@themeraldsword1630 Says:
I feel like Derek is slowly unlocking all kinds of sensory deprivation. I mean he 's been in a room with no sound, he's been underwater for an extended period; barely feeling anything, and now he's been in a room with no light.
@Chaos_insurgents Says:
that nvg he has is 45k and me wants them
@canalbomon Says:
Feedback:
AI for pt-BR audio?
I preffer original or profissional work
@charlesgould8436 Says:
I've seen now we are using like 2009 replaceable cell phone batteries for small electronics. Still planned obsolescence,but at least trying.
@ericthehalfmexican9187 Says:
These night vision googles are for sale on the civilian market, but I can’t talk about that.
@majorzot3851 Says:
Fascinating! I flew helicopter EMS for a couple years w/night vision goggles - image intensifiers. It was just amazing to be flying in the Arizona desert in the dark at 2am … and see all sorts of terrain detail when under the goggles. At 30 miles from the airfield, I could activate the lights there … and it would be visible through the goggles, when there was no way that I could see the lights normally. I was always amazed … though peripheral vision and depth perception were nearly non-existent. You gotta keep turning & moving your head.
@nickadkins7765 Says:
Good thing the PVS31A's have onbard illuminators to give you IR light in those pitch black situations 😉
@user-yb7rs4wf9o Says:
Just old tech why secret? Alien will smash u easy
@That_1_idiot_ Says:
"Bravo Six, going dark"
@nig786 Says:
Amazing video
@user-hl6th7ev9w Says:
Brilliant video, many thanks.
I knew a little about the infrared active system and how it basically works but this video just opened night vision to me on a whole different light ( pun intended)
@cad7195 Says:
theres no photons in here, rubs eyes, sees fauxtons
@EstelonAgarwaen Says:
Wouldve loved to have seen a comparison between those smartphone thermal cameras that are used for laptop power failure searching and the military cameras
@ralphralpherson9441 Says:
Gen III Nods are great, but using thermal was the most impressive thing to me. I worked briefly with a firm that represented two thermal imaging cameras for law enforcement, military, and a separate product line for firefighting. The LE version was so sensitive it could distinguish half a degree F. So if there were 4 people in a car, and they all bailed out 15 minutes ago, you could still see four butt-prints in the seats and know how many suspects you had flee the vehicle. It also made people glow like glow-sticks in the middle of the woods at night. If civilization broke down and it was every man for himself, I'm going with thermal... Thermal can see in the IR band so even in caves or lightless basements your enemies will glow like they're wearing a suit of bright christmas lights. The only bitch with thermal is that windows are impenetrable... might as well be a wall. So i guess the ideal setup would be a combination of Gen III and thermal, or AI and thermal.
@Sharpshooterandre Says:
Texto criado por IA
@slime_katzu Says:
I wonder if you can make this at home. The military-grade ones.
@cubandarknez Says:
Saw video where a veteran mentioned a story of how new recruits would constantly get scolded because they wouldn't turn off some of their equipment properly and with night vision goggles on it was a huge beacon pointing into sky announcing your position.
@tomalex6449 Says:
How Do Devil Fruits Work? (There's 3 types)
@milvj7716 Says:
Amazing ❤
@TheSpiritombsableye Says:
It's rare that I miss a notification of a video and find it later in 5 months.
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