Maksutov Mirror Real Profile
If finishing mirror’s figuring, when Milles-Lacroix method shows, that our mirror was enough polished, will be
interesting to plot not only the graphic of the longitudinal aberrations, but the mirror’s real profile to see
the deviation from the ideal surface. Such method was suggested by the Russian optician Dmitri Maksutov.
The answer of the question "Is my mirror good enough?" give us the Rayleigh criterion: the "peak to valley" (P-V) wavefront error cannot exceed ¼ wave. The work on a mirror is often continued until the wavefront P-V is significantly and perhaps unnecessarily less than ¼ wave. The usual method of reducing the data from the Foucault test, is to find the errors in the readings relative to the readings which would be obtained from a parabola of assumed focal length and then integrate these errors to find the mirror surface errors.
Input Data
On the applet front panel you can change three mirror parameters: clear aperture, focal length and squared eccentricity. Additional settings are available by pressing the Settings button (blue collored). It allows you to enter up to three different series (KE measurements) and up to ten mirror’s zones per serie or setup the light source. If you have not nough data leave the fields blank. From the settings panel are available also two other buttons, Example and Clear; the first fill the series with stored in the applet source KE data; the second button clear all series data. The Close button will leave the settings panel and redraw the graphic with the new options.
The answer of the question "Is my mirror good enough?" give us the Rayleigh criterion: the "peak to valley" (P-V) wavefront error cannot exceed ¼ wave. The work on a mirror is often continued until the wavefront P-V is significantly and perhaps unnecessarily less than ¼ wave. The usual method of reducing the data from the Foucault test, is to find the errors in the readings relative to the readings which would be obtained from a parabola of assumed focal length and then integrate these errors to find the mirror surface errors.
Input Data
On the applet front panel you can change three mirror parameters: clear aperture, focal length and squared eccentricity. Additional settings are available by pressing the Settings button (blue collored). It allows you to enter up to three different series (KE measurements) and up to ten mirror’s zones per serie or setup the light source. If you have not nough data leave the fields blank. From the settings panel are available also two other buttons, Example and Clear; the first fill the series with stored in the applet source KE data; the second button clear all series data. The Close button will leave the settings panel and redraw the graphic with the new options.
Bellow is listed the applet tag, that allows you to customize it by start, including initialising of the mirror
parameters (diameter, focal length, squared eccentricity), light source type and wavelength; auto or user defined
scaling; setup series and scale color, plot window background and applet title.
Applet Tag:param name = "Title" value = "Mirror Real Profile by Dmitri Maksutov"
param name = "Mirror Diameter" value = "200.0"
param name = "Mirror Focal Length" value = "1200.0"
param name = "Mirror Eccentricity" value = "1.000"
param name = "Plot Scale" value = "0.5"
param name = "Wavelength" value = "555"
param name = "Source Type Index" value = "1"
param name = "Graph Type Index" value = "0"
param name = "Serie 1 Color Index" value = "1"
param name = "Serie 2 Color Index" value = "9"
param name = "Serie 3 Color Index" value = "4"
param name = "Scale Color Index" value = "10"
param name = "Background Color Index" value = "0"
Applet Tag: