445nm Brick!

[laser_freak]

oh, i think i remember seeing something like that. how is that better than prisms?

First, drlava has a GB going: http://laserpointerforums.com/f55/cylindrical-correction-optics-445-638-a-52925.html
Both methods can achieve the same effect, but cylindrical lenses are smaller and easier to fit into a laser pointer.

Now, let's get back on subject.