Today I had some time to try the effect of Peltier element strapped to the back of the seek.
I polished the back of the seek to expose bare metal (magnesium alloy) for better contact. And I also opened it and stuffed 3 layer of thermal pads between the pcb and the housing.
All with the idea of cooling down the sensor and the shutter.
Peltier is TEC1-12706 (12V 60W). I was running it at 0.5A 2V (1W).
Seek + peltier + big heatsink:
![](https://i.imgur.com/VREDws2.jpg)
Image of room corner (5*C temp diff) without peltier:
![](https://i.imgur.com/I4nMCe1.png)
Image with peltier on:
![](https://i.imgur.com/DXGah8o.png)
As you can see the difference is huge. No wonder that old TI all had some sort of cooling system...
Just for fun 20 images stacked with ImageMagick "convert *.png -evaluate-sequence median OUT.png":
![](https://i.imgur.com/ZdxWaIS.png)
I'm pretty happy with the result.
![ThumbsUp :-+](https://www.eevblog.com/forum/Smileys/default/icon_smile_thumbsup.gif)