He he sorry

I guess I started it. It's so unlike me to be dirty. I apologize for dirtying the sanctity of the beautiful pre-OD forum, cpw...

THis is in my head and I can't get it out:

Did you know that a concave lens corrects myopia and that a convex lens corrects hypertropia?

Also that a convex lens is a converging lens (where the focal length is positive), and a concave lens is a diverging lens (where the focial length is negative). A convex mirror on the other hand is a diverging mirror while a concave mirror is a converging mirror.

This is some random stuff I've been studying, in case you can't tell.

Also that for lenses, p is always positive, if q is positive, teh image is on the opposite side of the lens, if q is negative, the image is on the same side of the lens.

With a diverging lens, the image is DUV

With a converging lens, the image is real and inverted and q is positive if p>f

If p<f then the image is BUV.

If only it'll stay in my head till Saturday.

Eyegirl (I wear the OAT. It does not wear me)