Design of a telescope The Cassegrain telescope design
Chapter 10, Problem 10.3.78(choose chapter or problem)
Design of a telescope The Cassegrain telescope design (dating back to 1672) makes use of the reflective properties of both the parabola and the hyperbola. Shown in the figure is a (split) parabolic mirror, with focus at and axis along the line l, and a hyperbolic mirror, with one focus also at and transverse axis along l. Where do incoming light waves parallel to the common axis finally collect?
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