What people are saying - Write a review
We haven't found any reviews in the usual places.
Active Optics Concept
Figure Sensor Concept
Phase Measuring Interferometer Concept
24 other sections not shown
Other editions - View all
1/4 X plate 180 degrees 8-inch f/1 parabola 8-inch parabola active optics actual fringe pattern Advanced Figure Sensor approach was selected approaches were investigated aspheric reference reflector axial beam beamsplitter birefringence breadboard Calculated Optical Path carrier frequency center of curvature circularly polarized light cycles disk displacement Doppler frequency shifter equation Experimental Reference Reflector ferometer Figure 23 figure error frequency modulation Gregorian Telescope interference pattern light pattern longitudinal spherical aberration mirror tilt moire analysis moire pattern analysis Nominal Center null corrector optical arrangement optical axis optical elements optical frequency shifter optical path difference parabola paraxial paraxial center Pattern of Experimental Perkin-Elmer Corporation phase detector phase measuring interferometer polarizing beamsplitter primary mirror primary mirror figure prime focus produce ray positions reference carriers reference master reference mirror reference reflector relative phase rotating 1/4 secondary alignment shift shown in Figure shows sphere spherical aberration transducer Twyman-Green interferometer vector waveform wavefront