Refraction of light through a Convex Lens. Lens diagram a cross section through the centre plane.

Slides:

Advertisements

Similar presentations

Learning Outcome Draw a ray diagram to find the position, nature and size of the image produced by a concave and convex mirrors.

Advertisements

Subject: PHYSICS Topic: Convex lens Light refraction in Prism Ray diagram of a convex lens Ray diagram illustrating graphical construction rules of a.

Created by Stephanie Ingle Kingwood High School

Real or Virtual? Real images A real image is one which can be produced on a screen and is formed by rays that converge. Imaginary images A virtual image.

Light and Optics Mirrors and Lenses. Types of Mirrors Concave mirrors – curve inward and may produce real or virtual images. Convex mirrors – curve outward.

Reflection of light.. Specula Reflection. Reflection from a mirrored or glossy surface Specula Reflection.

What is the vertical dashed line called?

Concave Mirrors Can Form Real Inverted Images. Topic4.4 (Pages ) TODAY WE WILL... Have a quick review about plane mirrors, and the terms of a concave.

Types of Lenses If you have ever used a microscope, telescope, binoculars, or a camera, you have worked with one or more lenses. A lens is a curved transparent.

Mirrors Ch. 20. Mirrors Mirror – any smooth object that reflects light to form an image.

LENS any transparent object having two nonparallel curved surfaces or one plane surface and one curved surface Converging Lenses - thicker in middle than.

CH 14: MIRRORS & LENSES 14.1: Mirrors. I. Plane Mirrors  Flat, smooth mirror  Creates a virtual image: an image your brain perceives even though no.

Convex Mirrors LG: I can describe the uses on convex mirrors and draw ray diagrams involving convex mirrors.

Lenses Lenses are curved surfaces that refract light as it passes through. [

Refraction of Light EM lesson 8.  Thicker in the center than at the edges  Have positive focal lengths  Converge parallel rays of light that pass through.

13.1 Lenses. Predicting Images in a Convex Lens.

Curved Mirrors and Ray Diagrams SNC2D. Concave Mirrors A concave mirror is a curved mirror with the reflecting surface on the inside of the curve. The.

Curved Mirrors Sections 11.5 & 11.6.

Concave/Convex Mirror Image Formation Rules 1.Parallel Rays - Light rays parallel to the principal axis are reflected through the focus of the mirror.

Curved Mirrors Curved mirrors are like plane mirrors

Convex Lens A convex lens curves outward; it has a thick center and thinner edges.

A. can be focused on a screen. B. can be projected on a wall.

Spherical Mirrors Spherical mirror – a section of a sphere of radius R and with a center of curvature C R C Mirror.

Chapter 19 – Optics Jennie L. Borders.

 Mirrors that are formed from a section of a sphere.  Convex: The reflection takes place on the outer surface of the spherical shape  Concave: The.

Mirrors & Reflection.

Light through a Converging lens. Lesson Objectives. Know how converging lenses refract light. Describe how to draw light diagrams from convex lenses.

Optics and Light Lenses form images by refracting light.

Curved Mirrors: Locating Images in Concave & Convex Mirrors.

Types of mirror When we draw a ray diagram we represent a mirror by drawing a line with dashes on the silvered (non-shiny) side. Most mirrors are flat.

Light wave Recall: Light must reflect off of an object before it can be used to see the object. A flat mirror is called a plane mirror. A plane mirror.

Curved Lenses SNC2P – Optics. Lenses Lenses are thin pieces of glass or plastic that have at least one curved side. There are two basic types of lenses:

JOHN WANGOMBE BAHATI PCEA SECONDARY SCHOOL THIN LENSES.

Chapter 7 Light and Geometric Optics

Predicting Images in Convex and Concave Lenses. When the object is located at twice the focal length (2F)

02/06/2016 Lenses and Images LO: to be able to describe images formed by different types of lenses Starter: make a list of any items you can think of that.

Lesson 4 Define the terms principal axis, focal point, focal length and linear magnification as applied to a converging (convex) lens. Define the power.

Today’s agenda: Death Rays. You must know when to run from Death Rays. Refraction at Spherical Surfaces. You must be able to calculate properties of images.

Ray Diagrams Noadswood Science, 2013.

Copyright © 2010 McGraw-Hill Ryerson Ltd. What are lenses and what are some of their applications? Topic4.6 (Pages )

Converging Lenses Section 4.6 Lesson 13. Lenses A lens is a thin transparent piece of glass or plastic that has at least one curved side –The sides can.

CONVERGING LENSES. Lenses Lenses REFRACT light and are usually used to form IMAGES 2 types convexconcave bi-convex plano-concave plano-convex bi-concave.

Image Formation. Flat Mirrors  p is called the object distance  q is called the image distance  θ 1 = θ 2 Virtual Image: formed when light rays do.

MIRRORS AND LENSES PAGE 59 OF INB EQ Why is distance important when discussing mirrors and lenses?

LENSES Write down anything like this!.  Different types of lenses play an important part in our lives. They are used in cameras, telescopes, microscopes,

Lenses Lenses _______ light and are usually used to form ________ There are two types: In practice, light is refracted at both surfaces of the lens but.

Can you list out other applications of lenses?

Chapter 18 Mirrors and Lenses. Curved Mirrors Concave shaped mirrors cause parallel light rays to converge. Convex shaped mirrors cause parallel light.

Mirrors. Types of mirror There are two types of mirror Plane (flat) Curved Concave (curves in) Convex (curves out)

Using Lenses. Aims Be able to describe the behavior of light as it passes through a convex lens. Know how to measure the focal length of a convex lens.

RAY DIAGRAMS Steps for drawing a plane mirror ray diagram: 1. A ray that strikes perpendicular to the mirror surface, reflects perpendicular to the mirror.

Mirrors and Lenses Section 1 Mirrors

Lenses Topic 13.4.

Reflections in Mirrors

Chapter 7 Light and Geometric Optics

Converging Lenses Section 4.6 Lesson 13.

4.4 Concave and Convex Mirrors

Lenses Lesson 10.

LENSES A lens is defined as - A ground or molded piece of glass, plastic, or other transparent material with opposite surfaces either or both of which.

Chapter 8 Ray Diagrams (光線圖)

5.3: Using Lenses to Form Images

Lenses: Day 1 -Converging Lenses

Using Lenses to Form Images

5.3: Using Lenses to Form Images

Presentation transcript:

Refraction of light through a Convex Lens

Lens diagram a cross section through the centre plane.

Simple convex (curves outwards) lens

Simple concave (curves inwards) lens

Convex lens Concave lens

Lens is in a vertical plane, straight up and down on the page.

Lens Air

Light ray

Light ray is horizontal (at a right angle) to vertical lens

Extension of right ray Light ray is horizontal (at a right angle) to vertical lens

Extension of right ray Light ray is horizontal (at a right angle) to vertical lens

Centre line of the lens Extension of right ray Light ray is horizontal (at a right angle) to vertical lens

Extension of right ray Light ray is horizontal (at a right angle) to vertical lens Centre line of the lens

Right angle to the centre line of the lens Extension of right ray Light ray is horizontal (at a right angle) to vertical lens Centre line of the lens

The perpendicular

Right angle to the surface of the lens

Centre line of the lens

Perpendicular to the centre line of the lens, passing through the centre point of the lens Centre line of the lens

Light ray

The focus or focal point

F Focus

F

F

F

F

F

F

F

F

F

F

FF

FF

FF

FF

FF

FF

FF

FF

FF

FF

FF

FF

FF

F

F

F Focal length Focus

This distance from the centre of the lens to the focus point, will be given to you as a point on a diagram or a measurement such as 3cm. F Focal length Focus

F Focal length Focus

F Focal length Focus

2 x focal length F Focal length Focus

2 x focal length F Focal length Focus

2 x focal length FF2F2 Focal length Focus

2 x focal length F1F1 F2F2 Focal length Focus

Focal length 2 x focal length F1F1 F2F2 Focus

Focal length 2 x focal length F1F1 F2F2 Focal length Focus

Focal length 2 x focal length F1F1 F2F2 Focal length Focus

Focal length 2 x focal length F1F1 F2F2 Focal length Focus

Focal length 2 x focal length F1F1 F2F2 F1F1 Focal length Focus

Focal length 2 x focal length F1F1 F2F2 F1F1 Focal length Focus

Focal length 2 x focal length F1F1 F2F2 F1F1 Focal length 2 x focal length Focus

Focal length 2 x focal length F1F1 F2F2 F1F1 Focal length 2 x focal length Focus

Focal length 2 x focal length F1F1 F2F2 F1F1 F2F2 Focal length 2 x focal length Focus

F1F1 F1F1 F2F2 F2F2

F1F1 F1F1 F2F2 F2F2

F1F1 F1F1 F2F2 F2F2 Object located beyond 2 focal lengths (F 2 )

F1F1 F1F1 F2F2 F2F2

F1F1 F1F1 F2F2 F2F2

F1F1 F1F1 F2F2 F2F2

F1F1 F1F1 F2F2 F2F2

F1F1 F1F1 F2F2 F2F2 Light rays converge at this point.

F1F1 F1F1 F2F2 F2F2 A real image is formed. A real image can be projected onto a screen.

F1F1 F1F1 F2F2 F2F2 The image is inverted (up-side down) and smaller than the original object.

F1F1 F1F1 F2F2 F2F2 When the object is located beyond 2 focal lengths (F 2 )

F1F1 F1F1 F2F2 F2F2 The image created is real, inverted and smaller than the original object.

F1F1 F1F1 F2F2 F2F2 When the object is located beyond 2 focal lengths (F 2 ) The image created is real, inverted and smaller than the original object. The rays converge between 1 and 2 focal lengths

F1F1 F1F1 F2F2 F2F2 Other rays can be added from different points on the object

F1F1 F1F1 F2F2 F2F2

F1F1 F1F1 F2F2 F2F2

F1F1 F1F1 F2F2 F2F2

F1F1 F1F1 F2F2 F2F2

F1F1 F1F1 F2F2 F2F2

F1F1 F1F1 F2F2 F2F2

F1F1 F1F1 F2F2 F2F2

F1F1 F1F1 F2F2 F2F2

F1F1 F1F1 F2F2 F2F2 These extra rays all converge at the same point between 1 and 2 focal lengths.

F1F1 F1F1 F2F2 F2F2 These extra rays are unnecessary for our purposes.

F1F1 F1F1 F2F2 F2F2 Draw rays only from the top point of your object. This will keep your diagram simple and easy to understand

F1F1 F1F1 F2F2 F2F2

F1F1 F1F1 F2F2 F2F2

F1F1 F1F1 F2F2 F2F2

F1F1 F1F1 F2F2 F2F2

F1F1 F1F1 F2F2 F2F2

F1F1 F1F1 F2F2 F2F2