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D'Armate invented the first pair of wearable glasses.
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Hans Jansen and his son, Sacharias Jansen, invented the first compound microscope.
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Developed a compound microscope with a convex and concave lens.
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Drebbel developed a compound microscope made of two comvex lenses. He began manufacturing microscopes, in London, with compound devices.
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Leeuwenhoek developed the single-lense microscope.
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d'Orleans invented a binocular microscope out of two monocular systems.
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Huygens formulated the wave theory of light. He also constructed oculars made of two lenses and a diaphragm.
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Hertel invented a microscope that used mirrors for illumination. He also developed a micrometer eyepiece using horse hair for a grid.
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Cuff invented a condenser lens to increase light intensity.
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Georg Adams constructed microscope with a revolving nosepiece that allowed objectives to change.
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Ruska created the first electron microscope. This microscope is used by most scientists today and instead of light uses a beam of electrons.
