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.

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

Mirror and Lens by Rifki Irawan. a surface, such as polished metal or glass coated with a metal film, that reflects light without diffusion and produces.

Convex and Concave Lenses

(c) McGraw Hill Ryerson Using Lenses to Form Images A lens is a piece of transparent material that can bend, or refract, light rays in useful.

Thin Lenses Zahra Pirvali University Senior College Dr Shahraam Afshar University of Adelaide Centre of Expertise in Photonics.

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.

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

Section 12.2 Pages Lens Terminology The principal axis is an imaginary line drawn through the optical centre perpendicular to both surfaces.

13.1 Lenses. Predicting Images in a Convex Lens.

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

2 Types of Lenses:.  thickest in middle & thinnest at edge  causes rays parallel to principal axis to converge through a single point (principal focus)

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 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.

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

SEEING THROUGH A LENS.  We see the world through lenses.  Eye glasses = lenses. Contact lenses = lenses.  Magnifying glasses = lenses. Microscopes.

Its now time to see the light…..  A lens is a curved transparent material that is smooth and regularly shaped so that when light strikes it, the light.

Ray Diagrams Noadswood Science, 2013.

Ray Diagrams for Lenses. Convex (Converging) Lenses There are two Focal points One in Front and one Behind Focal point is ½ way between Center of Curvature.

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

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

Thin Lens Chapter Bending of Light Any transparent object that is curved with affect the path of light rays. Ex: o Glass bottle full of water will.

4.6 Lenses - Real Images (p )Lenses (p )

Lenses and the Formation of Images. Basic Lens Shapes Converging Lens -thickest in the middle (thinnest at edge) -causes parallel light rays to converge.

Images Formed by Lenses Ray Diagrams for Lenses Ray diagrams can be used to predict characteristics of images using 3 rays, just like for concave.

 A lens is a transparent object with at least one curved side that causes light to refract  Like mirrors, lenses have surfaces that are described as.

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.

Refraction & Lenses Sections 11.7 and 11.8.

Can you list out other applications of lenses?

SEEING THROUGH A LENS.  We see the world through lenses.  Eye glasses = lenses. Contact lenses = lenses.  Magnifying glasses = lenses. Microscopes.

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)

PHYSICS – Total Internal Reflection and Lenses. LEARNING OBJECTIVES Core Describe the formation of an optical image by a plane mirror, and give its characteristics.

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.

Seeing Things Through a Lens You See an Eye. Seeing Things Through a Lens What Does the Eye See?

Lenses Converging and Diverging Lenses.

Lenses Topic 13.4.

Images in Lenses.

Lenses and Ray Diagrams

Predicting Images in a Convex Lens

Chapter 13: Lenses and Optical Devices

Lenses and Ray Diagrams

12.1 – Characteristics of Lenses

Introduction to Lenses

Converging Lenses Section 4.6 Lesson 13.

Lenses and Ray Diagrams.

Lenses and Ray Diagrams.

Images Formed by Lenses

14-2 Thin lenses.

5.3 Using Lenses to Form Images

Lenses Lesson 10.

Convex and Concave Lenses

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.

Lenses A lens is a transparent material (with at least one curved side) that causes light refracts in a predictable and useful way. Each ray is refracted.

Ch.6 Lens (透鏡).

5.3 Using Lenses to Form Images

Lenses: Day 1 -Converging Lenses

Ray Diagrams for Concave Lenses

Lenses 2: DIVERGING LENSES

5.3 Using Lenses to Form Images

Presentation transcript:

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 be concave, convex or both –We also use lenses for glasses! – 11HZItZiCuDBNhttps:// 11HZItZiCuDBN

Lenses A lens changes the direction in which light –If the light rays come together it is a converging lens, if the rays move apart it is a diverging lens

Converging lens Because light can travel in both directions through a lens there are two focal points – one on either side of the lens

principal axis F1F1 F

Drawing Ray Diagrams Step 1 –Draw a straight line (the axis of symmetry) through the centre of the lens perpendicular to the principal axis –An incident ray drawn parallel to the principal axis will refract through the focus on the other side of the lens

principal axis For an object beyond 2F 1 F1F1 F 2F 1

Drawing Ray Diagrams Step 2 –Draw an incident ray through F 1 that will refract through the lens parallel to the principal axis

principal axis F1F1 F

Drawing Ray Diagrams Step 3 –An incident ray aimed at the centre of the lens will pass through the lens

principal axis F1F1 F

L: _____________ O: _____________ S: ____________ T: ________ closerinvertedsmallerreal Identify the characteristics of this image: F1F1 F

Notes Complete the handouts: –4.6 Converging Lenses: Drawing Ray Diagrams –4.6 What are lenses and what are some of their applications? (Summary)

Vocabulary Journal Add this term and definition: –lens