Theoretical & Geometrical Optics 1 PDF

Summary

This document is lecture notes on theoretical and geometrical optics. The notes cover fundamental concepts regarding light and offer some examples. It is intended for an undergraduate level.

Full Transcript

THEORETICAL & GEOMETRICAL OPTICS 1 By: MARY ANN GIZZELE F. GUANI, ECE, OD CONVERSIONS 1 meter = 1000 millimeter 1 meter = 100 centimeters 1 centimeter = 10 millimeter 1 foot =...

THEORETICAL & GEOMETRICAL OPTICS 1 By: MARY ANN GIZZELE F. GUANI, ECE, OD CONVERSIONS 1 meter = 1000 millimeter 1 meter = 100 centimeters 1 centimeter = 10 millimeter 1 foot = 12 inches 1 inch = 2.54 centimeters 3 OPT 004 AY 2024-2025| THEORETICAL & GEOMETRICAL OPTICS | MARY ANN GIZZELE F. GUANI, ECE, OD ADDITION AND SUBTRACTION OF INTEGERS 4 OPT 004 AY 2024-2025| THEORETICAL & GEOMETRICAL OPTICS | MARY ANN GIZZELE F. GUANI, ECE, OD OPTICS ▪ Branch of physics which is concerned with light and its behavioral pattern and properties. ▪ The study of light, how it is generated, propagated, and detected, and how it interacts with matter. 5 OPT 004 AY 2024-2025| THEORETICAL & GEOMETRICAL OPTICS | MARY ANN GIZZELE F. GUANI, ECE, OD OPTICS 1. PHYSICAL OPTICS ▫ Examines light as energy particles that are emitted by light sources and absorbed by other substances 2. GEOMETRIC OPTICS ▫ Deals with the formation of images as rays of light acted on by lenses, prisms and mirrors. 3. QUANTUM OPTICS ▫ Deals with the interaction of light and matter. It considers light as having both wave and particle characteristics. 6 OPT 004 AY 2024-2025| THEORETICAL & GEOMETRICAL OPTICS | MARY ANN GIZZELE F. GUANI, ECE, OD 1. LIGHT Nature and Properties OPT 004 AY 2024-2025| THEORETICAL & GEOMETRICAL OPTICS | MARY ANN GIZZELE F. GUANI, ECE, OD LIGHT AND ITS DUAL NATURE Light may be defined as energy to which the human eye is sensitive. Light resembles sound in that it passes through a media – but unlike sound – it can also travel across a vacuum. 8 OPT 004 AY 2024-2025| THEORETICAL & GEOMETRICAL OPTICS | MARY ANN GIZZELE F. GUANI, ECE, OD SUBDIVISIONS OF LIGHT 1. LIGHT RAY – the path of a single photon or particle of light from a single point on a light source 2. PENCIL OF LIGHT – bundle of rays 3. BEAM OF LIGHT – collection of divergent, convergent or parallel pencils arising from an extended source 9 OPT 004 AY 2024-2025| THEORETICAL & GEOMETRICAL OPTICS | MARY ANN GIZZELE F. GUANI, ECE, OD LIGHT AND ITS DUAL NATURE Diffraction Wave Interference Polarization LIGHT Rectilinear Propagation Particle Reflection 10 Refraction OPT 004 AY 2024-2025| THEORETICAL & GEOMETRICAL OPTICS | MARY ANN GIZZELE F. GUANI, ECE, OD DUAL NATURE OF LIGHT: WAVE - DIFFRACTION DIFFRACTION Apparent bending of waves around small obstacles; spreading out of waves past small openings 11 OPT 004 AY 2024-2025| THEORETICAL & GEOMETRICAL OPTICS | MARY ANN GIZZELE F. GUANI, ECE, OD DUAL NATURE OF LIGHT: WAVE - INTERFERENCE INTERFERENCE When 2 waves meet, collide or intersect while traveling along the same medium 12 OPT 004 AY 2024-2025| THEORETICAL & GEOMETRICAL OPTICS | MARY ANN GIZZELE F. GUANI, ECE, OD DUAL NATURE OF LIGHT: WAVE - INTERFERENCE INTERFERENCE SUPERPOSITION PRINCIPLE by Thomas Young 13 OPT 004 AY 2024-2025| THEORETICAL & GEOMETRICAL OPTICS | MARY ANN GIZZELE F. GUANI, ECE, OD DUAL NATURE OF LIGHT: WAVE - INTERFERENCE INTERFERENCE 14 OPT 004 AY 2024-2025| THEORETICAL & GEOMETRICAL OPTICS | MARY ANN GIZZELE F. GUANI, ECE, OD DUAL NATURE OF LIGHT: WAVE - POLARIZATION POLARIZATION Transforming unpolarized light into polarized light 15 OPT 004 AY 2024-2025| THEORETICAL & GEOMETRICAL OPTICS | MARY ANN GIZZELE F. GUANI, ECE, OD LIGHT AND ITS DUAL NATURE Diffraction Wave Interference Polarization LIGHT Rectilinear Propagation Particle Reflection 16 Refraction OPT 004 AY 2024-2025| THEORETICAL & GEOMETRICAL OPTICS | MARY ANN GIZZELE F. GUANI, ECE, OD DUAL NATURE OF LIGHT: PARTICLE – RECTILINEAR PROPAGATION RECTILINEAR PROPAGATION OF LIGHT Light in a homogeneous medium travels along straight line paths called rays 17 OPT 004 AY 2024-2025| THEORETICAL & GEOMETRICAL OPTICS | MARY ANN GIZZELE F. GUANI, ECE, OD DUAL NATURE OF LIGHT: PARTICLE – REFLECTION REFLECTION When a ray of light approaches a smooth polished surface and the light ray bounces back 18 OPT 004 AY 2024-2025| THEORETICAL & GEOMETRICAL OPTICS | MARY ANN GIZZELE F. GUANI, ECE, OD DUAL NATURE OF LIGHT: PARTICLE – REFLECTION REFLECTION When a ray of light approaches a smooth polished surface and the light ray bounces back 19 OPT 004 AY 2024-2025| THEORETICAL & GEOMETRICAL OPTICS | MARY ANN GIZZELE F. GUANI, ECE, OD DUAL NATURE OF LIGHT: PARTICLE – REFLECTION REFLECTION Why do we see Taylor’s dress as RED? 20 OPT 004 AY 2024-2025| THEORETICAL & GEOMETRICAL OPTICS | MARY ANN GIZZELE F. GUANI, ECE, OD DUAL NATURE OF LIGHT: PARTICLE – REFLECTION REFLECTION 21 OPT 004 AY 2024-2025| THEORETICAL & GEOMETRICAL OPTICS | MARY ANN GIZZELE F. GUANI, ECE, OD DUAL NATURE OF LIGHT: PARTICLE – REFRACTION REFRACTION Takes place due to the bending of light when it travels from medium to another. 22 OPT 004 AY 2024-2025| THEORETICAL & GEOMETRICAL OPTICS | MARY ANN GIZZELE F. GUANI, ECE, OD

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