Chapter 30 Lenses. Lens – a lens is a transparent material that bends light rays depending on its shape Converging lens – a lens (top left) in which light.

Slides:



Advertisements
Similar presentations
Lenses. Transparent material is capable of causing parallel rays to either converge or diverge depending upon its shape.
Advertisements

LENSES. LENSES A light ray bends as it enters glass and bends again as it leaves ◦This refraction is due to the difference in the average speed of light.
(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.
 Learning Objective › Explain the relationship between the focal length, image distance, image size, and object distance for a convex lens.  Success.
Image Formation 2 Thin Lens Multi lens/mirror system
Chapter 36 Image Formation. Summary: mirrors Sign conventions: + on the left - on the right Convex and plane mirrors: only virtual images (for real objects)
26.6 Lenses. Converging Lens Focal length of a converging lens is real and considered positive.
LENS any transparent object having two nonparallel curved surfaces or one plane surface and one curved surface Converging Lenses - thicker in middle than.
Magnification of lenses Images
PHY 1371Dr. Jie Zou1 Chapter 36 Image Formation (Cont.)
Today 2/5  Images and Lenses  Lab: Any Questions?  Start reading chapter on Lenses  HW:2/5 “Converging Lens” (3 pages) Due Friday, 2/7  Exam.
Physics 1161 – Prelecture 23 Converging & Diverging Lenses.
Thin Lenses.
Abigail Lee. Lenses refract light in such a way that an image of the light source is formed. With a converging lens, paraxial rays that are parallel to.
Lenses.
Optics.
Thin Lenses Chapter 15.
Notes on Chapter 30 Lenses
Physics 1C Lecture 26A.
Mirrors & Reflection.
C URVED LENSES 13.1, 13.3, D IVERGING LENS, C ONCAVE SHAPE F.
Geometric Optics This chapter covers how images form when light bounces off mirrors and refracts through lenses. There are two different kinds of images:
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:
Images formed by lenses. Convex (converging) lenses, f>0.
Unit 5, Chapter 15 Integrated Science. Unit Five: Light and Optics 15.1 Seeing an Image 15.2 The Human Eye 15.3 Optical Technology Chapter 15 Optics.
Chapter Refraction: Snell’s Law *When light passes from one medium to another, or from one density to another, it changes speed and its path is bent.
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 2/7  Diverging Lenses--Ray Diagrams and Math  HW Questions?  Start reading chapter on Lenses  HW:“2/7 Diverging Lens” (three pages) Due.
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.
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.
the change of direction of a ray of light as it passes obliquely from one medium into another of different transmission speed Optical Density of a medium.
Dispersion The spreading of light into its color components is called dispersion. When light enters a prism, the refracted ray is bent towards the normal,
LENSES AND THE FORMATION OF IMAGES. Lenses We see the world through lenses… Eye glasses = lenses Contacts = lenses Magnifying glasses = lenses Microscopes.
Lenses Convex lenses converge rays of light. Parallel rays converge a fixed distance away from the lens. This is known as the focal length.
PHY138 – Waves, Lecture 8 Today’s overview:
Mirrors and Lenses. Mirrors and Images Key Question: How does a lens or mirror form an image?
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.
Chapter Twenty-Five: Light  25.1 Properties of Light  25.2 Color and Vision  25.3 Optics.
 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.
MIRRORS AND LENSES PAGE 59 OF INB EQ Why is distance important when discussing mirrors and lenses?
Converging Lenses Mrs. Scheitrum.
Mirrors.
Index of Refraction. The ratio of the speed of light in vacuum to the speed of light v in a given material is called the index of refraction, n of the.
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)
Thin Lenses. Two Types of Lenses Converging – Thicker in the middle than on the edges FOCAL LENGTH (+) POSITIVE Produces both real and virtual images.
Lenses. Combining prisms Combine a series of prisms and you can get an especially sharply focused image. A lens acts as a series of prisms.
Lenses Converging and Diverging Lenses.
Chapter 7 Light and Geometric Optics
12.1 – Characteristics of Lenses
Introduction to Lenses
Lesson P4 Part 2 ~ Lenses & Refraction
Lenses and Ray Diagrams.
Lenses and Ray Diagrams.
14-2 Thin lenses.
Thin Lenses A lens is a transparent object with two refracting surfaces whose central axes coincide. The common central axis is the central axis of the.
Properties of lenses.
5.3 Using Lenses to Form Images
Light.
Lenses.
5.3 Using Lenses to Form Images
Equations with Lenses SNC2D.
Using Lenses to Form Images
Lesson P4 Part 2 ~ Lenses & Refraction
Thin Lens Equation 1
5.3 Using Lenses to Form Images
Presentation transcript:

Chapter 30 Lenses

Lens – a lens is a transparent material that bends light rays depending on its shape Converging lens – a lens (top left) in which light rays are made to bend toward each other (converge ) Diverging lens – a lens (top right) in which light rays are made to bend away from each other (diverge)

Ray Diagram – shows the principal rays that can be used to determine the size and location of an image The mathematical relationship between object distance o, image distance I, and focal length f is given by: