計算機輔助光學設(shè)計codevs-全文預覽
【正文】 ntroduction to CODE V Training, Fall 2022, Slide 1?? Chromatic Aberration ? Index is function of wavelength: n = n(l) ? Abbe number describes the dispersion: ? Vd = (nd –1)/(nF –nc) – ld = nm (yellow) – lF = nm (blue) – lc = nm (red) ? Small Vd (Vd ~ 20 50): very dispersive, colors spread a lot ? Large Vd (Vd ~ 55 90): less dispersion Introduction to CODE V Training, Fall 2022, Slide 1?? Rays and Waves ? Rays are normal to wavefront ? Waves diffract at apertures and can interfere ? Rays can image perfectly。 Image THI S0 L Entrance pupil EPD q NAO = n sinq q = tan1(EPD / 2L) NA = NAO / RED = n39。3280 East Foothill Boulevard Pasadena, California 91107 USA (626) 7959101 Fax (626) 7950184 World Wide Web: CODE V Introductory Seminar: Day 1 “Optics 101” Digital Camera Design Study 3280 East Foothill Boulevard Pasadena, California 91107 USA (626) 7959101 Fax (626) 7950184 World Wide Web: Section 1 Optics 101 (on a Budget) Introduction to CODE V Training, Fall 2022, Slide 1?? Goals and “Not Goals” ? Goals: – Brief overview of basic imaging concepts – Introduce some lingo of lens designers – Provide resources for quick reference or further study ? Not Goals: – Derivation of equations – Explain all there is to know about optical design – Explain how CODE V works Introduction to CODE V Training, Fall 2022, Slide 1?? Sign Conventions ? Distances: positive to right ? Curvatures: positive if center of curvature lies to right of vertex ? Angles: positive measured counterclockwise ? Heights: positive above the axis t 0 t 0 V
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