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• • History • History Scanning Electron •Use •Use Microscope • Light Microscope • Light Microscope • •Compound Atomic Force •Compound Microscope Microscope Microscope •Scanning Tunneling • •Scanning Tunneling Electron Microscope Microscope Microscope •X-Ray Microscope •X-Ray Microscope •Binocular •Binocular Microscope Microscope The first record of the use of lenses to manipulate The first record of the use of lenses to manipulate images was in Greek and Roman writings of around images was in Greek and Roman writings of around 1000 A.D. As for the origins of someone using lenses to 1000 A.D. As for the origins of someone using lenses to magnify a minute object, it is unclear. Most scientific magnify a minute object, it is unclear. Most scientific instruments have a clear place in the historical records instruments have a clear place in the historical records when they were formed and who created them, not the when they were formed and who created them, not the microscope though. The definition of the microscope microscope though. The definition of the microscope makes it difficult to determine when it was first makes it difficult to determine when it was first created. Since there were lenses dating back to created. Since there were lenses dating back to ancient societies, how do we say when those lenses ancient societies, how do we say when those lenses were used to look at minute objects? It is practically were used to look at minute objects? It is practically impossible to say when a single lens was used in that impossible to say when a single lens was used in that fashion. Credit for the first compound microscope fashion. Credit for the first compound microscope (multiple lenses) is generally given to Zacharias Jansen (multiple lenses) is generally given to Zacharias Jansen and John Lipperhey of the Netherlands, in 1590. and John Lipperhey of the Netherlands, in 1590. • A microscope is an instrument that • A microscope is an instrument that produces an enlarged image of an object. produces an enlarged image of an object. • A microscope ( Greek: Micran= small and • A microscope ( Greek: Micran= small and scopos = aim) is an instrument for veiwing scopos = aim) is an instrument for veiwing objects that are to small to be seen by the naked objects that are to small to be seen by the naked or unaided eye. The science of investing small or unaided eye. The science of investing small objects using such an instrument is callled objects using such an instrument is callled microscopy, and the term microscopic means microscopy, and the term microscopic means minute or very small, not easily visible with the minute or very small, not easily visible with the unaided eye. In other words, requiring a unaided eye. In other words, requiring a microscope to examine. microscope to examine. A microscope which consists of two microscopes A microscope which consists of two microscopes in series, the first serving as the ocular lens in series, the first serving as the ocular lens (close to the eye) and the second serving as the (close to the eye) and the second serving as the objective lens (close to the object to be objective lens (close to the object to be viewed). Credit for creating the compound viewed). Credit for creating the compound microscope goes usually to the Dutch spectacle microscope goes usually to the Dutch spectacle makers Hans and Zacharias Janssen who in 1590 makers Hans and Zacharias Janssen who in 1590 invented an instrument that could be used as invented an instrument that could be used as either a microscope or telescope. The either a microscope or telescope. The compound microscope has evolved into the compound microscope has evolved into the dominant type of optical microscope today. dominant type of optical microscope today.
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