Wuben        
Results 1 to 21 of 21

Thread: Can a smartphone + IR flashlight = crude nightvision?

  1. #1
    Flashaholic*
    Join Date
    Oct 2004
    Location
    NY
    Posts
    2,062

    Default Can a smartphone + IR flashlight = crude nightvision?

    As the title suggests, is it possible to use a smartphone camera along with an IR LED (like a SureFire V-series light) for nightvision? I dont have any IR lights to try this out, online searches suggest this is possible since smartphone cameras capture IR from a tv remote.

  2. #2
    *Flashaholic* StarHalo's Avatar
    Join Date
    Dec 2007
    Location
    California Republic
    Posts
    10,866

    Default Re: Can a smartphone + IR flashlight = crude nightvision?

    It works with camcorders, but not the iPhone.

  3. #3
    Flashaholic*
    Join Date
    Oct 2004
    Location
    NY
    Posts
    2,062

    Default Re: Can a smartphone + IR flashlight = crude nightvision?

    Can a lens filter for the camera make it possible?

  4. #4
    Moderator
    archimedes's Avatar
    Join Date
    Nov 2010
    Location
    CONUS, top left
    Posts
    14,725

    Default Re: Can a smartphone + IR flashlight = crude nightvision?

    There are thermal imagers available for smartphones, like Seek and FLIR
    ... is the archimedes peak

  5. #5

    Default Re: Can a smartphone + IR flashlight = crude nightvision?

    I don't know if you can mod a smartphone camera without disassembling one.

    but I've seen some tutorial on youtube of how to to convert a common webcam into a IR one. it includes disassembling the webcam and remove the IR filter on the lens.

  6. #6
    *Flashaholic* StarHalo's Avatar
    Join Date
    Dec 2007
    Location
    California Republic
    Posts
    10,866

    Default Re: Can a smartphone + IR flashlight = crude nightvision?

    Correction: The front-facing camera of the iPhone and Android phones can see IR, was not aware. I guess if you put enough cameras on a device one of them will see in the spectrum you want..

  7. #7
    Flashaholic* Unicorn's Avatar
    Join Date
    Sep 2000
    Location
    Near Seattle, WA
    Posts
    1,320

    Default Re: Can a smartphone + IR flashlight = crude nightvision?

    I've tried without success. I can see the flashlight light up, but the camera isn't sensitive enough to do more than that.

  8. #8

    Default Re: Can a smartphone + IR flashlight = crude nightvision?

    I tried it with a 6 cell Mag xenon with a IR filter - can see a little bit up to about 2 feet enough to make details out but that's about it. Even if it did work, you would be visible with your phone display lit up, so it is not stealthy.....kinda defeats the purpose of night vision to see without being seen. I think a night vision capable camcorder would be better.

  9. #9

    Default Re: Can a smartphone + IR flashlight = crude nightvision?

    Interesting idea. This gets back to another question. Are there big throwers exclusively in the IR or UV spectrum?

  10. #10
    Flashaholic* FRITZHID's Avatar
    Join Date
    Jun 2011
    Location
    Icelandic wastelands of Monico, WI
    Posts
    2,500

    Default Re: Can a smartphone + IR flashlight = crude nightvision?

    I've tried my maxabeam and vss-3a in IR with cell cam, handheld camcorder & day/night security cam.
    Security cam was the only really effective one, all others were very dim and had a purplish hue to the spot. Security cam was bright white spot.
    I Got tired of looking for the light at the end of the tunnel so i lit that bitch up myself! Convoy s2 365nm, Maxa-Beam Gen II, 55w hid/100w incan Vector Twin, Amondotech n30, vss-3A, Reylight Ti Lan v3, Helius Sigma 9, astrolux s41 219, Shadow JM35, BLF GT,

  11. #11
    Unenlightened
    Join Date
    Dec 2006
    Location
    Portland, OR
    Posts
    19

    Default Re: Can a smartphone + IR flashlight = crude nightvision?

    Quote Originally Posted by StarHalo View Post
    Correction: The front-facing camera of the iPhone and Android phones can see IR, was not aware. I guess if you put enough cameras on a device one of them will see in the spectrum you want..
    I have an iPhone X and two IR flashlights I use regularly. The cameras on the phone do not see IR light any better than your naked eye does. I also have two Gen 3 monoculars which do see the IR lights and I use them for additional illumination. I also have a new SiOnyx Aurora camera which also has an IR sensitivity setting and the flashlights work well with it also. Both of my IR lamps are 940 nm and do not appear as red dots like so many of the security camera illuminators at 850 nm. One of them even requires a NV device to tell if it is off or on, you can't even see the slightest glow staring straight at it.

  12. #12
    *Flashaholic* StarHalo's Avatar
    Join Date
    Dec 2007
    Location
    California Republic
    Posts
    10,866

    Default Re: Can a smartphone + IR flashlight = crude nightvision?

    iPhone 7 Plus:

    Rear camera (wide/28mm):


    Front camera:

  13. #13
    Flashaholic* CarpentryHero's Avatar
    Join Date
    Jul 2010
    Location
    Edmonton
    Posts
    2,948

    Default Re: Can a smartphone + IR flashlight = crude nightvision?

    Thatís a great photo for reference, the filter on the lens of an iPhone is quite strong, Iíve seen a tutorial on how one removes it, the potential to ruin it is too dang high.
    Not all phone makers filter out the ir light, but an old camcorder would be way easier.
    I'm glad I found CPF, I was beginning to think I was strange
    I'm a Canadian and a proud Flashaholic
    Thanks CPF, thanks Think2x

  14. #14
    Unenlightened
    Join Date
    Dec 2006
    Location
    Portland, OR
    Posts
    19

    Default Re: Can a smartphone + IR flashlight = crude nightvision?

    Is there anywhere on this forum that mainly discusses IR cameras & lights? I've done a few searches, but haven't found much.

  15. #15
    Moderator
    archimedes's Avatar
    Join Date
    Nov 2010
    Location
    CONUS, top left
    Posts
    14,725

    Default Re: Can a smartphone + IR flashlight = crude nightvision?

    Quote Originally Posted by draver View Post
    Is there anywhere on this forum that mainly discusses IR cameras & lights? I've done a few searches, but haven't found much.
    Yes ...

    https://www.candlepowerforums.com/vb...6-Night-Vision

    ... but that is a rather dormant subforum.
    ... is the archimedes peak

  16. #16
    Moderator
    archimedes's Avatar
    Join Date
    Nov 2010
    Location
    CONUS, top left
    Posts
    14,725

    Default Re: Can a smartphone + IR flashlight = crude nightvision?

    Thread moved to Night Vision subforum .... Might jump-start things over there
    ... is the archimedes peak

  17. #17
    Flashaholic angerdan's Avatar
    Join Date
    Feb 2015
    Location
    Europe
    Posts
    271
    Last edited by angerdan; 11-05-2018 at 11:06 AM.

  18. #18
    *Flashaholic* PhotonWrangler's Avatar
    Join Date
    Oct 2003
    Location
    In a handbasket
    Posts
    12,550

    Default Re: Can a smartphone + IR flashlight = crude nightvision?

    Just to clarify a bit -

    Near-IR is the portion of the EM spectrum just beyond visible red. This is the space where security camera illuminators and IR remote controls operate. Smartphone cameras have IR-cut filters in front of the lens to improve picture quality for visible-light photos.

    Far-IR is the stuff that we perceive as heat. It still behaves as light, sort of - it can be bounced off of metal reflectors - but it cannot be picked up by visible light cameras, even those with no IR filter. Thermal imagers use an entirely different type of sensor called a microbolometer as well as a radically different type of lens material. A microbolometer is essentially blind to visible light as well as near-IR but is sensitive to the much longer wavelengths that regular sensors can't see. Flir and Seek Thermal both have relatively inexpensive thermal imagers available, some as smartphone attachments and others as standalone units with their own LCD screens. Thermal cameras used to cost thousands of dollars, but a consumer-grade camera can be purchased for a few hundred bucks these days.

    Near-IR LEDs and lasers work well with the relatively cheap first generation night vision tubes.

  19. #19

    Default Re: Can a smartphone + IR flashlight = crude nightvision?

    There are folks that convert GoPros and remove teh IR filter for such things, though you have to disassemble the GoPro...

  20. #20

    Default Re: Can a smartphone + IR flashlight = crude nightvision?

    it works great with my old sony 0lux cam, and a ir light i build 10w 850nm.

    http://forum.fonarevka.ru/showpost.p...9&postcount=90
    http://forum.fonarevka.ru/showpost.p...&postcount=121

  21. #21
    Enlightened Krane's Avatar
    Join Date
    Mar 2016
    Location
    NY
    Posts
    23

    Default Re: Can a smartphone + IR flashlight = crude nightvision?

    iPhones come with very strong IR filters, androids ear camera filters are weak and equivalent to iPhone front face camera filter.

    you would have to 100% disassemble an old phone, take the camera out, disassemble the camera and remove 1 of 6-9 lenses without damaging it. Current cameras have optic image stabilization and are not just a screw-in type garbage from 2005, so youíd have to remove the aluminum cover. It will be a lot of work.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •