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OPTICAL INSTRUMENTS
PRESENTED BY
P.R. PARTHIBAN
J. KRISHNA MOORTHY
R. RAJA SEKHAR
D.SATHISH KUMAR
P. RAJESH
GUIDED BY
B.RAVINDRANATH
OPTICAL INSTRUMENTS
Any arrangement which makes use of a combination of
lenses,mirrors or prisms,is called an optical
instrument. All the optical instruments are based on the laws of reflection and
refraction.
KINDS OF OPTICAL INSTRUMENTS
• SIMPLE MICROSCOPE
• COMPOUND MICROSCOPE
• ASTRONOMICAL TELESCOPE
• TERRESTRIAL TELESCOPE
• BINOCULAR
• PERISCOPE etc.
SIMPLE MICROSCOPE
A simple microscope consists of a convex lens of short focal length held by means of a handle and a
rim.
COMPOUND MICROSCOPE
Compound microscope
an instrument consisting of a combination of
lenses such that the image formed by the
lens or set of lenses nearest the object (called the
objective) is magnified by another lens called the ocular
or eyepiece.