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.

Astronomical Telescope

Telescope is used

to see the heavenly bodies such as satellites , stars , planets ,

Astronomical, etc.