Focal Lens
Posted on Saturday, May 16, 2009 in Security Systems
How does the thickness of a lens affect the focal length of a lens and the size of an image? (Light Physics)?
How does the thickness of a lens affect:a) The focal length of a lens b) the size of an image?
10 points for first correct answer, anyone who supplies helpufull link automatically gets 10 points.
Assuming that the curvatures are the same...
Increasing thickness INCREASES the POWER of the lens... and hence, the focal length of the lens is DECREASED....
Now if you decrease the Focal Lenght, the Magnification (and image size) is INCREASED for Convex lenses... and DECREASED for Concave lenses.
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