I'm just making up words now... This is the part just after the bulb where it goes through a bunch of mirrors.

Remove the 6 Screws - 2x10mm Plastic Tapping

Carefully lift up the top - there's a lens attached to the top piece (Blue Arrow) - don't scratch it on your way out!

Take note of the orientation of the lenses - take a photo before you touch anything and note the little marks on the top of some of the lenses (or maybe put a little dot of marker on the top?)