I took my (2) coleman 3AA lanterns (one yellow, one grey-exactly like the ones in post #9 on this thread) today and sanded the inside of the plastic lens's with 320 grit. These lanterns come apart really easy, and the 320 grit worked great, I wet sanded them.
I was going to follow you guys with the frosting spray, but I live in BFE with no stores within 100 miles or so, and I'm impatient
Anyways the sandpaper did the trick nicely, There's an even glowing light now, and no lines and annoying patterns everywhere. No worries about the frosting spray coming off or binding the slide sheilds either.
I stuck the laterns in a dark cabinet to test them for a minute.
Thanks you guys for the idea in the first place, I hated these lanterns till today. Waiting till dark now to get a better idea of how even the glow is.
Really....Thanks