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hi all
Posted: 22 Mar 2013, 20:44
by Toytown
hi guys im a shooter and resently started using night vision, home made night vision to be exact made by my own fair hands

it works really well but my main problem is illumination. Icurrently use a 12V 40 LED board that is spot on for close range ratting around outbuildings and modified halogen torch with filter for 20-30 yard work on rabbits but i nee MORE POWER
i am starting a new project involving a green laser and the eye piece from an old scope to open the beam to around 5 feet at 100 yards

my starter question is
how do i convert a green rifle laser to IR, i know i need to remove the green crystal but then im confused by other guides coz they say there are 2 lenses converting to around 1100nm ad then to around 550nm but i need aroud 810nm
also they all go on about the beam being dangerous and it will blind you if you get a reflection off something so how can this be made safe for NV use and is it possible.
or can anyone point me to a thread that can guide through making my own IR laser designator cheaply
cheers all
Re: hi all
Posted: 22 Mar 2013, 22:43
by PESCA
Hello Toytown and welcome to the forum.
After reading your post, I can't help but think that you're better off starting afresh and converting a flashlight to an ir led, as opposed to a laser.
Lots of conversions for you to read about on here. Decide on what range you require and you're build can be based around that.
George
Re: hi all
Posted: 22 Mar 2013, 23:42
by Toytown
cheers but ir dropins are useless at the ranges im after, a 1w cree 501 gives about 10 yards range (eye shine at 20), 12v 34 LED board gives about 30 yards indoors and 15 outdoors (eye shine 25) and a 1million candle 12" halogen lamp with 808nm filter gives about yards but there is allot of wasted IR.
im after 20/30 foot spread at 100 yards+
Re: hi all
Posted: 22 Mar 2013, 23:55
by phoenix
Get a Markylight from made by Sika Stag on this forum, or if you've got really deep pockets, buy a Bosch Aegis UFLED with a 10 degree beam.
Cheers
Bruce
Re: hi all
Posted: 23 Mar 2013, 00:08
by PESCA
Toytown wrote:cheers but ir dropins are useless at the ranges im after, a 1w cree 501 gives about 10 yards range (eye shine at 20), 12v 34 LED board gives about 30 yards indoors and 15 outdoors (eye shine 25) and a 1million candle 12" halogen lamp with 808nm filter gives about yards but there is allot of wasted IR.
im after 20/30 foot spread at 100 yards+
Not a fan of the ir drop-ins either. I was more thinking of the T20 conversion that the lads have come up with (unsure, but I think Adam found it).
See the sunny-d-light thread in the illumination section.
George
Re: hi all
Posted: 23 Mar 2013, 06:45
by sunndog
this one
http://nightvisionforumuk.com/viewtopic.php?f=31&t=1768
it can be upgraded to a 66mm lens and will go very far indeed
toytown, what cam are you using on your homebrew rig?
Re: hi all
Posted: 23 Mar 2013, 09:24
by 22-250jock
hi Toytown
if your worried about not using a laser have a look at this vid of marky's, it'll give you an idea of whats achievable using a torch conversion
https://www.youtube.com/watch?v=VKMYf9OGcJg
cheers jock
Re: hi all
Posted: 23 Mar 2013, 10:21
by michael40
Get a markylight off Ian, it will do everything you want and more.
Welcome to the forum.
Atb, mike
Re: hi all
Posted: 23 Mar 2013, 11:56
by Toytown
michael40 wrote:Get a markylight off Ian, it will do everything you want and more.
Welcome to the forum.
Atb, mike
do you have a link mate
Re: hi all
Posted: 23 Mar 2013, 12:09
by phoenix
Get your Markylight here -
They are manufactured by Ian Sirrel (Sika Stag on here) contact him on
ir.light.builds@gmail.com
Cheers
Bruce