Author Topic: So where can I get a 640x480 LWIR camera for under $1000?  (Read 13379 times)

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Offline encryptededdy

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Re: So where can I get a 640x480 LWIR camera for under $1000?
« Reply #25 on: May 09, 2016, 06:21:38 pm »
The 6.8mm?
I actually used the 19mm, which is the stock lens. For higher resolution composites it's better to have a even longer lens.
 

Online Fraser

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Re: So where can I get a 640x480 LWIR camera for under $1000?
« Reply #26 on: May 09, 2016, 07:21:48 pm »
Superb images and proof of what can be achieved with a little effort.

Fraser
 

Online Fraser

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Re: So where can I get a 640x480 LWIR camera for under $1000?
« Reply #27 on: May 10, 2016, 01:58:25 am »
To show the value for money that we enjoy these days..... I just bought a used Raytek / Fluke Ti30 thermal camera for £250. Its original cost in 2005 from Raytek was...... wait for it......... $9950  :scared:  The F1G2 is a bargain at $250  :D

It uses a 160 x 120 pixel  A-Si microbolometer with a 20fps frame rate. Its a nice bit of kit that easily outperform the F1G2 but then when you look at its original cost, they could afford Germanium optics, manual focus and a decent microbolometer.

I am not hung up on the 160 x 120 resolution as its FOV is a narrow 17 x 12 Degrees ! Around half that of the E4.

More details here

http://www.eevblog.com/forum/thermal-imaging/latest-thermal-camera-purchase-by-fraser/msg936953/#msg936953

Fraser
 

Offline efahrenholz

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Re: So where can I get a 640x480 LWIR camera for under $1000?
« Reply #28 on: May 10, 2016, 07:09:25 am »
I had to read through the whole thread to truly get an understanding of what was being asked. Last time I didn't read through and posted something that was already mentioned. I apologize if this is still the case.

As far as nobody offering a cheap sensor, keep your eyes on the i3 Thermal Expert V1. They are looking at around $2000 for a 640x480 sensor, which in my opinion is very cheap for something that clips right into your smartphone. The price could come down on this, the 320x240 sensor they offer right now is the absolute cheapest smartphone based thermal imaging camera for the resolution, and it's a VOx sensor. They quoted me around $700 or so, which for a 320x240 sensor is dirt cheap for what you are getting.

Now, like everyone else said, you can interpolate the image. Try some super resolution tricks to make the image bigger and higher resolution. The reason you can't get *good* thermal images that look like an HD camera is because the thermal pixels are larger than visible light. You can't make a pixel the size currently used in visible light cameras and expect it to work. It isn't sensitive at that point, 8-12um is the range used for thermal. Visible light is in the 350-900nm range. That's *NANO*, not *MICRO*. Manufacturers can push the limits on pixel size for visible because visible light is such a short wavelength. Heat needs bigger pixels, and special processes to even build the sensor. It uses exotic materials (highly expensive stuff!), and the lens must be made from something that can pass thermal energy (germanium is the best, and most expensive). Higher resolutions means bigger sensors, which means bigger lenses. All these costs add up. FLIR and Raytheon have made great strides at shrinking the thermal pixel down to its absolute minimum for absorption. This way they get more sensors per wafer, and can use smaller, cheaper lenses. It cuts the cost for the consumer considerably. When you do this, you give up sensitivity, just like on your $50 webcam which probably doesn't work for shit in the dark (because everything is pushing the limits for cost). Seek Thermal's camera uses ZnS (usable, like comparing glass and plastic lenses), on a camera with a very small pixel footprint. No wonder it performs horribly, and all the pictures from it look like someone rubbed jelly on the lens. What do you expect though, from something that has a pixel pitch just barely large enough to even absorb thermal radiation. At least it's cheap.

tldr; What you want, you won't likely get. It's like telepathy. It's nice in thought but you aren't going to get it anytime soon, if ever. Use software tricks to make your low res sensor look like it's bigger.
 

Offline Motero

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Re: So where can I get a 640x480 LWIR camera for under $1000?
« Reply #29 on: May 11, 2016, 12:53:37 am »
Today they told me $ 3500 as possible price for i3 Thermal Expert V1, well above the 2000 $ indicated by efahrenholz.

1. T.E-V1
We provide the lenses like 8.5mm, 19mm and 25mm.
The price will be determined with $3,500 (<9Hz, 19mm lens)

2. T.E-V1_Dev
We provide the lenses like 8.5mm, 19mm, 25mm and 35mm.
This version is for thirty-party developer. The price is based on the volume order.

3. Release schedule
We will start to sell the above product late July.

Regards
Marcos
 

Offline efahrenholz

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Re: So where can I get a 640x480 LWIR camera for under $1000?
« Reply #30 on: May 11, 2016, 12:24:53 pm »
Well I stand corrected.

Either way, looks like there's nothing out there for you sub $1000 in a 640x480.
 

Offline Hypernova

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Re: So where can I get a 640x480 LWIR camera for under $1000?
« Reply #31 on: May 12, 2016, 02:50:58 am »
First time I've heard of the i3 Thermal Expert V1, who's up for getting one? (Winking in Fraser's direction)
 

Online Fraser

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Re: So where can I get a 640x480 LWIR camera for under $1000?
« Reply #32 on: May 12, 2016, 03:23:04 am »
Sadly no spare cash :(

I have promised myself that I will not buy any more thermal cameras. I already broke that promise buying a Ti30 this week ...... Cleared out the hobby budget and there is no way I would pay $3000 on another camera now that I am retired. 320 X 240 pixel FPA's work fine in my applications.

Fraser
« Last Edit: May 12, 2016, 03:26:40 am by Fraser »
 

Offline homestea

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Re: So where can I get a 640x480 LWIR camera for under $1000?
« Reply #33 on: September 28, 2016, 06:26:24 am »
In case anybody is still following this thread:  you can get a military grade 640 x 480 LWIR 30Hz camera with a 62mm lens in a waterproof housing with cables for $995 over at Sierra Olympic Texhnologies website in the "outlet" section.
 

Offline sam1275

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Re: So where can I get a 640x480 LWIR camera for under $1000?
« Reply #34 on: October 04, 2016, 03:37:39 am »
In case anybody is still following this thread:  you can get a military grade 640 x 480 LWIR 30Hz camera with a 62mm lens in a waterproof housing with cables for $995 over at Sierra Olympic Texhnologies website in the "outlet" section.
I've also heard it on another forum, and they are working on some method (seems arduido) to make it portable, because it is designed to work(only) with a connection to a PC.
Off topic: I also want a TIC with optical zoom, optical stabilization, and auto focus, but that's expensive as hell :-//
Update: The serial connection is only for some basic settings, such as color palette/digital zoom/shutter/manual gain/etc, they are neither critical, nor persist between power cycle, and the camera should be able to operate without the serial connection.
There seems to have 2 video out, one is RS170, it's easy to use but you will only have 256 grey levels thus waste some sensor ability. Another seems to be camera link, which require additional expensive adapter to connect to a PC.
This camera have a 15 degree FOV lens, and maybe not very easy to find another wider/narrower replacement, so think before you buy, I think it's a good deal in general. Good luck.
« Last Edit: October 05, 2016, 03:40:39 am by sam1275 »
 


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