DIY Thermal - it can be done!

built your own thermal unit?.....or done some d.i.y modding on/with your existing unit. post them up here
phoenix
BRUCE ALMIGHTY
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DIY Thermal - it can be done!

Post by phoenix » 19 Nov 2014, 12:23

And this is it
Image
I bought an M500 thermal core and 50mm lens from Sun Creative Technologies
http://suncti.com/en/productsinfo.aspx?cid=6&nid=17
The display is an 0.5"OLED display that I had from a previous project
The 2 small black alloy boxes between the camera and display hold the battery (2/3 of an Elwirecraft 1800mah) and the controls
This is what the sensor on the core (camera) looks like
Image
The sensor is 640x480 pixels which is big improvement over the 384x288 pixel sensors used in the Pulsar and Guide thermals
The pixel pitch is also significantly less than on the Guide and Pulsar thermals (17micrometres compared to 25micrometres) which adds to the improved resolution.
The smaller pixels also makes it almost twice as sensitive to temperature changes -unlike CCDs and CMOS sensors where reducing the size of the pixel reduces sensitivity
The minimum temperature difference detectable by the sensor is 0.05 degrees, for the Guide it's 0.1 degrees
The sensor is made from amorphous silicon and requires no calibration, so no shutter noise or annoying loss of picture while the device calibrates itself.
Turn on time is 4 seconds, compared to 25 seconds for my old Guide 518 - (newer models of the Guide may well be faster than that)
The image can be zoomed through x1, x2 and x4 and the fact that there are a lot more pixels to start with means that the zoomed image at x2 is about the same resolution as the Guide at x1
This is the camera and lens fitted together
Image
The lens has a 1/4UNC threaded hole for mounting onto a tripod or similar
I built this as a spotter, but it has a very fine (1 pixel wide) movable cursor so, it might be possible to mount it on a rimfire rifle, although figuring out a decent set of mounts has eluded me so far.
Ok, I hear you say, you've told us all the technical bullshit - how does it perform?
When compared directly to my Guide 518 which has a 384x288 sensor and a 50mm lens, the clarity and sharpness of the image produced by the new thermal is a big improvement.
I plan to take some video in the next couple of days with both thermals looking at the same target so that you'll (hopefully) be able to see the difference
Price for the core and lens- £3195

Cheers

Bruce
LAND ROVER - THE WORLD'S WORST 4X4 BY FAR

phoenix
BRUCE ALMIGHTY
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Joined: 09 May 2012, 14:40
Location: Aberdeen

Re: DIY Thermal - it can be done!

Post by phoenix » 19 Nov 2014, 12:43

Size wize here's a pic with the new thermal and the Guide side by side
Image
Not much difference in weight
The new thermal is 800g and the Guide is 880g
I think the Pulsars are smaller and lighter than both.

Cheers

Bruce
LAND ROVER - THE WORLD'S WORST 4X4 BY FAR

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sunndog
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Re: DIY Thermal - it can be done!

Post by sunndog » 19 Nov 2014, 12:45

excellent work there bruce, looking forward to the vid
when asking for advice, please include what n.v device and/or illumination you already have (if any) and what rifles you intend to use them on...cheers

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paulham
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Re: DIY Thermal - it can be done!

Post by paulham » 19 Nov 2014, 12:54

Wow! This is a first!

Thanks for sharing, cant wait to see the footage!

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some bloke
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Re: DIY Thermal - it can be done!

Post by some bloke » 19 Nov 2014, 13:04

O-MY-GOSH, that is brilliant Bruce. :o

And you kept it secret too. :thumbup:
Image

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22-250jock
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Re: DIY Thermal - it can be done!

Post by 22-250jock » 19 Nov 2014, 13:18

bloody brilliant Bruce :clap: :clap:

that is going to take some beating :thumbup:

cheers john
“When guns are outlawed, only the Government will have guns. The Government - and a few outlaws. If that happens, you can count me among the outlaws.”
― Edward Abbey,

hywel1984
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Joined: 09 Feb 2014, 15:40
Location: Rhondda

Re: DIY Thermal - it can be done!

Post by hywel1984 » 19 Nov 2014, 13:21

You are an electronics God!! Can't wait to see the video. Is this more of a spotter than a gun mounted version?

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Torchwood
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Re: DIY Thermal - it can be done!

Post by Torchwood » 19 Nov 2014, 15:09

Awesome, :clap: :clap: :clap:


Toni
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ArAKern
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Joined: 05 Apr 2014, 19:31
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Re: DIY Thermal - it can be done!

Post by ArAKern » 19 Nov 2014, 15:22

"well standing in the shadow of greatness" is pointless now as he can see you even easier now.

impressive workmanship!!
ArA

PeteL
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Joined: 09 Apr 2014, 14:35
Location: Swansea

Re: DIY Thermal - it can be done!

Post by PeteL » 19 Nov 2014, 15:46

Bruce,
Brilliant, an excellent piece of work. :thumbup: Congratulations.
What material is the lens, as a matter of interest?.
Peter

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