Rear Focal Plane of A Lenticular Network
The focal length of the lens is calculated from the lensmaker's equation, which in this case simplifies to:
- ,
where is the focal length of the lens.
The back focal plane is located at a distance from the back of the lens:
A negative BFD indicates that the focal plane lies inside the lens.
In most cases, lenticular lenses are designed to have the rear focal plane coincide with the back plane of the lens. The condition for this coincidence is, or
This equation imposes a relation between the lens thickness and its radius of curvature .
Read more about this topic: Lenticular Lens
Famous quotes containing the words rear, plane and/or network:
“It is not easy to free
myth from reality
or rear this fellow up
to lutch, lurch with them
in the tranced dancing of men.”
—Earle Birney (b. 1904)
“Even though I had let them choose their own socks since babyhood, I was only beginning to learn to trust their adult judgment.. . . I had a sensation very much like the moment in an airplane when you realize that even if you stop holding the plane up by gripping the arms of your seat until your knuckles show white, the plane will stay up by itself. . . . To detach myself from my children . . . I had to achieve a condition which might be called loving objectivity.”
—Anonymous Parent of Adult Children. Ourselves and Our Children, by Boston Women’s Health Book Collective, ch. 5 (1978)
“A culture may be conceived as a network of beliefs and purposes in which any string in the net pulls and is pulled by the others, thus perpetually changing the configuration of the whole. If the cultural element called morals takes on a new shape, we must ask what other strings have pulled it out of line. It cannot be one solitary string, nor even the strings nearby, for the network is three-dimensional at least.”
—Jacques Barzun (b. 1907)