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The optics of a mid 18th Century compound microscope: Monocular Microscope (#6) made by the son of George Adams, Sr. (1704-1773) |
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Magnification and Modeling
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Ray diagram showing the lens systems.
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| Calculated Magnification: Using Equation 1/so + 1/si = 1/f and M = -si/so Total Magnification = -26.08X Calculated Magnification from Images:-28.0X |
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| The microscope consists of five lenses: The objective lens (5), a "behind lens" (4), a Field lens (3), and the eyepiece (Lenses 1,2). The total magnification was calculated to be approximately 26x and observed to be 28x. | |||||||||||||||||
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| Resolution and Sample Images | |||||||||||||||||
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| Calculated Resolution Using: q = 1.22 R(lambda)/D Resolution = ~6.8 µm Resolution from Images: 5 µm – 20 µm |
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Sample images
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This microsocpe exhibits distortion (L) and spherical aberration (R). | ||||||||||||||||
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