Fermat's principle 1970-01-01
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Focal length 1970-01-01
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Focus (optics) 1970-01-01
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Fresnel equations 1970-01-01
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Fusiform 1970-01-01
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Gaussian optics 1970-01-01
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Geometric Shapes (Unicode block) 1970-01-01
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METATOY 1970-01-01
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Minimum deviation 1970-01-01
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Neil F. Johnson 1970-01-01
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Normal plane (geometry) 1970-01-01
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Off-axis optical system 1970-01-01
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Ungula 1970-01-01
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Optical aberration 1970-01-01
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Wallis's conical edge 1970-01-01
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Whorl 1970-01-01
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Optical axis 1970-01-01
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Optical lens design 1970-01-01
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Coma (optics) 1970-01-01
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Conic constant 1970-01-01
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