Author Topic: Hti HT-301 384 x 288  (Read 19530 times)

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Offline meanie2

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Hti HT-301 384 x 288
« on: September 27, 2019, 08:05:59 pm »










Hi! Is Hti a reliable brand?
 
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Offline ArsenioDev

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Re: Hti HT-301 384 x 288
« Reply #1 on: September 30, 2019, 06:08:10 pm »
Whoah, thats shockingly decent video if real. Wonder which FPA they're using and approx sale price
 
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Offline meanie2

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Re: Hti HT-301 384 x 288
« Reply #2 on: September 30, 2019, 07:40:06 pm »
Whoah, thats shockingly decent video if real. Wonder which FPA they're using and approx sale price
$859.00 before 10% off, not sure which currency.

https://hti-instrument. com/products/ht-301-mobile-phone-thermal-imager
« Last Edit: September 30, 2019, 07:43:00 pm by meanie2 »
 

Offline tonykids

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Re: Hti HT-301 384 x 288
« Reply #3 on: October 01, 2019, 04:55:56 am »
Familiar with these picture?
the same as T3S ! I think HT-301 is just  T3S, with a HTI logo on it
but T3S is only $650 :-DD
 
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Offline meanie2

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Re: Hti HT-301 384 x 288
« Reply #4 on: October 02, 2019, 01:27:52 pm »
In that case, hope there is no logo, people were complaining about st***** xinfrared logo.
 
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Offline Fraser

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Re: Hti HT-301 384 x 288
« Reply #5 on: October 02, 2019, 01:44:12 pm »
The logo is free advertising if the images get shared or published. Most manufacturers of consumer grade cameras incorporate a Logo in the image. Some let you disable the Logo overlay, but most do not.

As a good friend of mine who designs cameras said to me...... “why have junk on the screen, like logo’s when a customer has paid a lot for those pixels !” Every one of those expensive pixels should be made available to the customer, if desired !

Fraser
 

Offline Ambassador

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Re: Hti HT-301 384 x 288
« Reply #6 on: October 12, 2019, 12:42:23 pm »
Hti-xintai  HT 301 - full analogue of the device but cheaper -  IRAY Xtherm T3.
Device housing all aluminium.
Lens focal position is 13 mm.
Minimum shooting distance is 19 centimeters.
Viewing angle: 32.8 ° х 24.6 °
Price (12.10.2019) - $773.10

I bought it and I already got it. There were no problems. The store pays for mail.

Manufacturer's website - store:
https://hti-instrument.com/products/ht-301-mobile-phone-thermal-imager

View details and mechanics + lens attachment dimensions:
https://yadi.sk/d/cKbfsocK7y2jZg
« Last Edit: October 13, 2019, 09:33:06 am by Ambassador »
 
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Offline Fraser

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Re: Hti HT-301 384 x 288
« Reply #7 on: October 12, 2019, 12:50:21 pm »
@Ambassador

Interesting internal pictures. Thanks  :-+
 
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Offline Vipitis

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Re: Hti HT-301 384 x 288
« Reply #8 on: October 12, 2019, 01:22:04 pm »
most noteable it offers 25hz. in the QVGA dongle space you can only get a modified ThermApp to do that. If HTI and IRAY are just rebrands of one another, it gets interesting in terms of competition. The sensor they built looks very capable and form the teardown, the lens looks like a good piece of germanium.
 

Offline NBtron

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Re: Hti HT-301 384 x 288
« Reply #9 on: October 17, 2019, 05:40:58 pm »
View details and mechanics + lens attachment dimensions:
https://yadi.sk/d/cKbfsocK7y2jZg

Can you make foto of PCB with all chips?
 
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Offline Bill W

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Re: Hti HT-301 384 x 288
« Reply #10 on: October 18, 2019, 12:46:03 am »
'Interesting'  :bullshit: comparison with a Boson 640.

Shows what a bit of unsharp mask can do to a 384 image while a bit of blur on the Boson 640. 

Ambassador, what do the images from your actual camera look like ?

Bill

Offline Ambassador

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Re: Hti HT-301 384 x 288
« Reply #11 on: October 18, 2019, 12:57:36 am »
« Last Edit: October 18, 2019, 01:16:54 am by Ambassador »
 

Offline Ambassador

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Re: Hti HT-301 384 x 288
« Reply #12 on: October 18, 2019, 01:11:44 am »
View details and mechanics + lens attachment dimensions:
https://yadi.sk/d/cKbfsocK7y2jZg

Can you make foto of PCB with all chips?

Currently this is not possible.
 

Offline NBtron

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Re: Hti HT-301 384 x 288
« Reply #13 on: October 18, 2019, 01:48:23 am »

Currently this is not possible.

Later?
 

Offline Ambassador

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Re: Hti HT-301 384 x 288
« Reply #14 on: October 18, 2019, 01:58:03 am »
Then. The device is new. Climb into it, for no reason really do not want + Manufacturer sanctions.
 

Offline NBtron

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Re: Hti HT-301 384 x 288
« Reply #15 on: October 18, 2019, 02:29:03 am »
Then. The device is new. Climb into it, for no reason really do not want + Manufacturer sanctions.

You must not deep climb into. You can open case and disconnect shutter. So i can see shutter is connected with normal 2pin connector (data connector must not be disconnected). That's all. Then you can make a couple fotos. There is only one single PCB. But if you don't want, I can understand you.  :-BROKE
« Last Edit: October 18, 2019, 02:39:26 am by NBtron »
 

Offline NBtron

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Re: Hti HT-301 384 x 288
« Reply #16 on: October 18, 2019, 02:45:29 am »
Is it same shutter?

 

Offline Ambassador

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Re: Hti HT-301 384 x 288
« Reply #17 on: October 18, 2019, 04:51:21 am »
Yes. The calibration flag.
 

Offline NinetySix

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Re: Hti HT-301 384 x 288
« Reply #18 on: October 20, 2019, 05:59:21 am »
Hi guys. Long time lurker, first time poster  :D

I just received my HT-301, and coming from a lepton 3.5 ("DIY-Thermocam") I am frankly gobsmacked at how much better the HT-301 is! US$770 isn't exactly chump change, especially with an exchange rate that sure ain't what it was about 5 years ago... So it was a bit of a gamble in a way, but one that appears to have paid off.

My first suspicions were that the sample photos on HTI's website were a little too good to be true, but I can safely say they have not been doctored. They are, however, probably good examples of excessive noise correction that seems to be applied by default with the HTI app. There is every possiblity that I don't know what I'm talking about yet.

Leads me to my next point, the HTI app is at best functional... But in my case, far from it. I use a Google pixel 3a XL which runs Android 10, and to be fair "Mr Lin" (the chap who answers HTI's email enquiries, and I think runs the YouTube channel) did say to me that it won't support my phone, but that it will support the Mrs' Huawei mate 20 Pro running a bastardised version of Android 9. Mr Lin was very quick with email replies, tho many of them featured only one word ???

So the app works on the Huawei, not much to write home about and a lovely watermark for my trouble, covering probably 50 US dollars worth of pixels :palm:

FFC clicks the shutter away and seems to change the image for the better, but the image does have noticeably uneven "illumination" with a brighter ring around the periphery (like vignetting, but the opposite) along with a funny looking defect in the centre of the frame, kind of reminds me of spherical aberration. I have since noticed a very similar "feature" in photos taken with other 384x288 17μm modules that appear to be the same thing with different branding.

Which leads to the next point...  The ht-301 works like a charm with ThermViewer, even on Android 10 :clap: and without going into it too much, it's a heck of an improvement over the HTI app, even when on a phone it works with ::) lens cap on and hold down the eraser (nuc?) looking button and... bam! The defects in the previous paragraph are gone.

And the final point I'll make, the lens sure is a loose fit in it's focusing threads! I suspect that may be intentional, to protect the sales of thermal rifle sights that need to hold a zero, not that HTI appear to sell one ;D However it doesn't appear that it will fall out, with (not very) hard stops slightly past Infinity and at around 120mm from the lens, definitely less than the 190mm on the spec sheet.




Attached is a photo that is definitely something a lepton could not resolve, it would appear to be the brightly illuminated blood vessels on the back of the Mrs hand. Focus isn't nailed, and it's tricky to get stills to come out as good as they appear live... Tricky to hit the shutter button without shaking the camera I suspect.


Cheers
« Last Edit: October 20, 2019, 06:06:47 am by NinetySix »
 
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Offline bap2703

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Re: Hti HT-301 384 x 288
« Reply #19 on: October 20, 2019, 08:40:31 am »
Thanks for the review.

The illumination ring is due to the shutter being between the lens and the sensor.
Doing a nuc with the shutter corrects the sensor non uniformity but leaves that of the lens untouched.

That's why a nuc done in front of the lens is better: you take into account everything.
 
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Offline Vipitis

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Re: Hti HT-301 384 x 288
« Reply #20 on: October 20, 2019, 11:16:43 am »
how is the framerate?
 

Offline NinetySix

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Re: Hti HT-301 384 x 288
« Reply #21 on: October 20, 2019, 11:48:21 am »
Very good, haven't seen a frame counter to verify but I would say easily 25hz? There's a video I shot on my Google photos, see following link:

https://photos.app.goo.gl/6Wmtw5DKgNysY8vz7

Edit: a couple of very short videos and some stills
« Last Edit: October 20, 2019, 11:57:06 am by NinetySix »
 
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Offline NBtron

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Re: Hti HT-301 384 x 288
« Reply #22 on: October 20, 2019, 04:55:53 pm »
Can you make some video and foto?
« Last Edit: October 20, 2019, 06:17:19 pm by NBtron »
 

Offline NinetySix

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Re: Hti HT-301 384 x 288
« Reply #23 on: October 20, 2019, 07:08:00 pm »
Open the Google photos link in my previous post 8) I'll add more progressively, and I just added a few now. Check again if you've already looked
 
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Offline NBtron

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Re: Hti HT-301 384 x 288
« Reply #24 on: October 20, 2019, 07:25:34 pm »
Can you make macrofoto of PCB with smd?
 


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