Is’ useful at this point, a recall on processing techniques with the tools at the sub-diameter, in particular how it is possible to increase the curvature of one or more zones. Then resume the concept according to which through sub-diameter strokes , External areas increase their curvature while those inside the decrease,
STARTING BALL AND FINAL PARABOLA the reflection of light emanating from infinity on a spherical surface does not generate, as it is known, a single focus point, but rather a figure that “caustic reflection” which identifies the rotation surface where they concentrate the reflections of a point source . As you can be seen in Figure
THE FIRST AND DOUBT’ our first mirror, We just completed the polishing stage and we have now reached a good sphere. The question at this point blend into the head of someone about to start his first parabolizzazione is: “really just do a little’ of “zigzag” to get to the parable ?” We seek
how to parabolize a low focal ratio mirror ( F2-F4 ) - Part Three
Now let's see how to develop a procedure that takes account of the problems highlighted in the article II, that is how to generate the project by means of a parabola working as regular as possible, with particular attention to the control of the figure during the intermediate stages of processing. THE METHOD “CUSTOM” The name only want to indicate they are not
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