Application of lense
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![Page 1: Application of lense](https://reader034.fdocuments.us/reader034/viewer/2022052602/5599b9151a28aba5658b46f9/html5/thumbnails/1.jpg)
APPLICATION
OF LENSES
ZUHHA TAQDEESROLL NO: 2512SUBMITTED TO: MISS HINA
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CONTENTS
• Lens
• Types of lenses
• Classification
• Applications
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LENS
It is an optical device that transmits and reflects light, converge or diverge beam.
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NIMRUD LENSE
• 3000 years old• Austen Henry Layard• Assyrian Palace of Nimrud• Magnifying Glass• Burning Glass• Piece of decoration
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SIMPLE AND COMPOUND LENS
•Simple lens consists of simple single element
•Compound lens consists of more than one elements
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ASPHERIC LENS
A lens whose surface profiles are not a portion of a sphere or cylinder.
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DOUBLET• Made by pairing of two simple lenses
• Allows: More Optical surfaces More Thickness
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CLASSIFICATION
• Classified on the basis of bending rays• Converging lens ( convex lens )• Diverging Lens ( Concave lens )
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APPLICATIONS
• Magnifying glass• Spectacles• Cameras• Compound microscope• Telescope• Binoculars
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MAGNIFYING GLASS
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SPECTACLES
• Structure of eye
• Imperfect vision
• Near sightedness
• Far sightedness
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Near Sightedness
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Far Sightedness
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CAMERAS
• Functions like eye• Aperture; pupil• Lenses• Film; retina
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COMPOUND MICROSCOPES
• Pair of convex lens
• Objective lens
• Eye piece
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TELESCOPE
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BINOCULARS
• Consists of two small telescopes
• Prisms
• Increase magnification
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MEDICAL APPLICATIONS
Autoscope Opthalmoscope
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OTHER APPLICATIONS
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CONCLUSION