Two basic kinds of lenses are the concave lens and the convex lens.
Human eye balls
http://www.wikihow.com/Clean-a-PlayStation-2-Lens
2
You cannot clean your PlayStation 2 lens without opening it. You will have to turn the machine off, unplug all of the plugs and open it to get to the lens.
what are the 2 kinds of database
Bausch and Lomb produces eye care products such as contact lens solutions. Bausch and Lomb contact lens solutions are used for cleaning contact lenses after wear.
5 yes if you look closely through a hand held lens (simple microscope) you will see 5 different kinds
Independent Lens - 1999 No Hair Day 2-2 was released on: USA: 9 October 2000
Lens on Talent - 2009 Race Relations 2-2 was released on: USA: 26 September 2010
Because the 2cm lens has 4 times the area of a 1cm lens. (area = Pi*r2)
A drop of water behaves like a Convex Lens.