Optical Instrument

IMAGE ENHANCEMENT

The first optical instruments were Telescope s used for magnification of distant images, and Microscope s used for magnifying very tiny images. Since the days of Galileo and Van Leeuwenhoek , these instruments have been greatly improved and extended into other portions of the Electromagnetic Spectrum . The Binocular device is a generally compact instrument for both eyes designed for mobile use. A Camera could be considered a type of optical instrument for storing an image.

ANALYSIS

Another class of optical instrument is used to analyze the properties of Light or optical materials. They include:

Interferometer for measuring the Interference properies of light waves

Photometer for measuring light intensity

Polarimeter for measuring dispersion or rotation of polarized light

Reflectometer for measuring the Reflectivity of a surface or object

Refractometer for measuring Refractive Index of various materials, invented by Ernst Abbe

Spectrometer or Monochromator for generating or measuring a portion of the optical spectrum, for the purpose of chemical or material analysis.

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Optical Instrument