Application of lense
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Transcript of Application of lense
APPLICATION
OF LENSES
ZUHHA TAQDEESROLL NO: 2512SUBMITTED TO: MISS HINA
CONTENTS
• Lens
• Types of lenses
• Classification
• Applications
LENS
It is an optical device that transmits and reflects light, converge or diverge beam.
NIMRUD LENSE
• 3000 years old• Austen Henry Layard• Assyrian Palace of Nimrud• Magnifying Glass• Burning Glass• Piece of decoration
SIMPLE AND COMPOUND LENS
•Simple lens consists of simple single element
•Compound lens consists of more than one elements
ASPHERIC LENS
A lens whose surface profiles are not a portion of a sphere or cylinder.
DOUBLET• Made by pairing of two simple lenses
• Allows: More Optical surfaces More Thickness
CLASSIFICATION
• Classified on the basis of bending rays• Converging lens ( convex lens )• Diverging Lens ( Concave lens )
APPLICATIONS
• Magnifying glass• Spectacles• Cameras• Compound microscope• Telescope• Binoculars
MAGNIFYING GLASS
SPECTACLES
• Structure of eye
• Imperfect vision
• Near sightedness
• Far sightedness
Near Sightedness
Far Sightedness
CAMERAS
• Functions like eye• Aperture; pupil• Lenses• Film; retina
COMPOUND MICROSCOPES
• Pair of convex lens
• Objective lens
• Eye piece
TELESCOPE
BINOCULARS
• Consists of two small telescopes
• Prisms
• Increase magnification
MEDICAL APPLICATIONS
Autoscope Opthalmoscope
OTHER APPLICATIONS
CONCLUSION