PPT-THE OPTICAL (LIGHT) MICROSCOPE

It is the most important tool to study of microstructure despite the fact that more sophisticated electron metallographic instruments such as scanning electron microscopy SEM and transmission electron microscopy TEM have been evolved. Microscopes are delicate and expensive instruments they should be handled with utmost care Before you use the microscope your instructor will explain its proper use Following are rule s that will protect the microscope and insure that you can make m POLARISED LIGHT MICROSCOPE . Designed to observe optically anisotropic specimen (BIREFRINGENCE SPECIMEN). Equipped with POLARISER and ANALYZER . Works on the principle of INTERFERENCE . COMPONENTS OF POLARISED . Optical Microscope. [photograph]. . Retrieved from https://. commons.wikimedia.org. /wiki/File:Optical_microscope_nikon_alphaphot_+.jpg. Microscopes:. Microscopes are some of the most commonly used pieces of lab equipment. Depth of . f. ield: small. Magnification. Uses lenses arranged in series, made of optical material that bends light. All magnification takes place via lenses. Uses . diascopic. illumination (that is, light is transmitted through the specimen). Magnification up to about 1000x.. Read March 21 1916 MICROSCoPze ACCB86OBY 131 which passes is limited to that which has traversed the crystal- structure in what is plctically one direction only and with the help of a nicol it may be Animal and Food Science Department. Brigham Young University Idaho. Introduction:. A microscope is a tool that allows us to view things that are to small to see with the naked eye. The most common microscope is the compound light microscope. Introduction to the Microscope.  . What Is Microscope?.  . It is an instrument which deals with too small organisms that they cannot be seen distinctly with the naked eye.. Microscope Types. 1. Compound . Introduction The applications of microscopy in the forensic sciences are almost limitless. This is due in large measure to the ability of microscopes to detect, resolve and image the smallest items o Theoretically a microscope is an array of two lenses Need of M icroscopy Living organisms, cells and their organelles which are too small to be seen with the human eye, can only be seen with the aid DEPARTMENT OF MICROBIOLOGY MTN COLLEGE MADURAI. Definition :  An optical instrument that uses a lens or a combination of lenses to produce magnified images of small objects  especially of obje 2 4 Microscope objectives are always labeled with their magnification and numerical aperture (N.A.). The numerical aperture is defined by where is the refractive index for the medium betwee A perture is the main lens or mirror that gathers the light to a F/ number is a measure of the speed and clarity of the optical – An astronomer wants to design a telescope that takes up the To explain the advantages of using an Electron Microscope . To be able to carry out Simple Magnification Calculations. . Microscopy. Foundations in Biology. SPEC. Objectives and Success Criteria. Objectives. Compare and contrast different types of microscopes. Describe the preparation of specimens for observation using microscopes.