So I finally diassembled my Logitech webcam. Their naming drives me nuts, so I’ll just post pics and leave it to all of you to see if its the same as your’s 
As you can see in the pic of the two hemispheres, I had to use a screwdriver (tiny flathead one) to snap the plastic band holding the two hemispheres together. Then, there were two bars connecting the two hemispheres at opposite sides, and I used big wire-cutters to break it. The plastic casing fell off at this point and I was left with the circuit board attached to the lens and the button at the top.
I got the lens and its casing apart from the circuit board very easily, 2 little screws. Here’s the painful part: getting the glued IR filter off of the lens. I used an Exacto knife (thanks Taha) to scrape at the glass for 20 minutes…makes a horrible sound, but works pretty well. Once a good bit of the glass has been scraped off, you can get a screwdriver in there to pry the rest up – it first goes up vertically, and then it can be pulled out if you dig at it.
