Hi guys.
Since my thermal hobby actually began from night vision, I'll post it here. However mods can move this if you feel off-topic.
To avoid advertising, I'll do my best to hide the brand/model. This is a pure technology talk.
I just got a unique night vision device that is not IIT(tube)-based, but based on "black silicon" CMOS.
https://en.wikipedia.org/wiki/Black_siliconBefore this, all so-called "digital night vision" are like jokes after jokes. But just look at the pictures attached, this device is truly amazing. (Pictures are from internet because I haven't got a chance to take decent photos yet, however I can assure you these pictures are from the same model I'm talking about)
It have a sensitivity similar to Gen-2 tube(or ISO 200k), and with color. It will not be damaged by daylight, or have a limited life-time like IITs. And the resolution is 720p, similar to Gen-3.
More surprisingly, its spectrum sensitivity goes all ways into SWIR.
What more would I ask for a device much less than $1k?
Oh wait, actually I do want one more function: wired video signal output. Because the EVF is not always comfortable to use, and the built-in wireless transfer never work.
One thing I just thought, is they should use a custom CFA, not the conventional bayer filter:
1. CMY color-resist would be a better choice instead of RGB, because they allow 2x light through.
2. The filter block rate should be as low as possible, just enough to let the processing stage to guess the color.
3. There should be half or more pixels just without any colored layer.
4. All color-resist should be transparent to IR.
Since they already go so far to "Black Silicon CMOS", I don't see a reason why not do this to make it better.
Finally, this is not the "X27" scam from the scammy "SPI corp" shit!
Thanks for reading.