HI, the PureThermal1 product say:
"Examples for Color Video over USB using UVC class (no drivers needed!)"
"USB UVC works on Windows, Linux, Mac, and even Android!"
For raspberry i can help you, please install last raspbian stretch, connect the product with usb reboot and check this:
/dev/video0 file must exist
or in the "dmesg" output check for some text like this:
105371.290646] usb 1-1.3: Product: USB 2.0 Camera
[105371.290654] usb 1-1.3: Manufacturer: Sonix Technology Co., Ltd.
[105371.298473] uvcvideo: Found UVC 1.00 device USB 2.0 Camera (0c45:6340)
After that there are many tools to grab or show images from a UVC class, depend of what do you need, to show in the web or grab to disk.
If you only need to help this your project is over price, and I set the minimum .
Please contact me over the chat.
David