PHY 1371Dr. Jie Zou1 Chapter 36 Image Formation (Cont.)

Slides:

Advertisements

Similar presentations

Option G2: Optical Instruments

Advertisements

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.

Notation for Mirrors and Lenses

Physics 1C Lecture 26B Quiz Grades for Quiz 2 are now online. Avg is again 67% Same as for Quiz 1.

PH 103 Dr. Cecilia Vogel Lecture 15. Review Outline  Refraction  index of refraction, law of refraction  Lenses  focal length  images  thin lens.

Geometric Optics Chapter Thin Lenses; Ray Tracing Parallel rays are brought to a focus by a converging lens (one that is thicker in the center.

(10.3/10.4) Mirror and Magnification Equations (12.2) Thin Lens and Magnification Equations.

Physics 1C Lecture 26C. Recap from last lecture Optical characteristics of lens are defined by focal length f: For a given f, imaging properties are given.

The Refraction of Light The speed of light is different in different materials. We define the index of refraction, n, of a material to be the ratio of.

Reference Book is Geometric Optics.

Chapter 36 Image Formation. Summary: mirrors Sign conventions: + on the left - on the right Convex and plane mirrors: only virtual images (for real objects)

PH 103 Dr. Cecilia Vogel Lecture 5. Review  Refraction  Total internal reflection  Dispersion  prisms and rainbows Outline  Lenses  types  focal.

26.6 Lenses. Converging Lens Focal length of a converging lens is real and considered positive.

Magnification of lenses Images

Curved Mirrors. Two types of curved mirrors 1. Concave mirrors – inwardly curved inner surface that converges incoming light rays. 2. Convex Mirrors –

Chapter 36 Image Formation Dr. Jie Zou PHY 1371.

Physics for Scientists and Engineers II, Summer Semester Lecture 25: July 27 th 2009 Physics for Scientists and Engineers II.

PH 103 Dr. Cecilia Vogel Lecture 6 NO QUIZDOM TODAY.

PHY 1371Dr. Jie Zou1 Chapter 36 Image Formation (Cont.)

Thin Lenses If the thickness of the lens is small compared to the object and image distances we can neglect the thickness (t) of the lens. All thin lenses.

10.7 – THIN CONVEX LENSES Also called, why the human eye is spherical instead of flat.

Converging lenses Diverging Lenses The Lens Equation We can make use of the fact that changing the focal length and position of the object we can change.

Mirrors & Lenses Chapter 23 Chapter 23 Learning Goals Understand image formation by plane or spherical mirrors Understand image formation by converging.

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.

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

Thin Lenses Chapter 15.

Chapter 14 Section 2 Thin lenses.

Lecture 15 Refraction, Lenses, Aberrations Chapter 23.4  23.7 Outline Atmospheric Refraction Thin Lenses Aberrations.

Unit 11: Part 2 Mirrors and Lenses. Outline Plane Mirrors Spherical Mirrors Lenses The Lens Maker’s Equation Lens Aberrations.

Geometric Optics This chapter covers how images form when light bounces off mirrors and refracts through lenses. There are two different kinds of images:

Images formed by lenses. Convex (converging) lenses, f>0.

Chapter 36 Image Formation.

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’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.

1 Thin Lens Light refracts on the interface of two media, following Snell’s law of refraction: Light bends through a triangular prism: θ 1 and θ 2 are.

Today 2/7  Diverging Lenses--Ray Diagrams and Math  HW Questions?  Start reading chapter on Lenses  HW:“2/7 Diverging Lens” (three pages) Due.

24 Geometric Optics Water drop as a converging lens.

The Thin Lens Equation. Let’s us predict mathematically the properties of an image produced by a lens.

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,

Converging Lenses & Their Application Dan Li SUNY-Stony Brook 11/07/2002.

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.

Converging Lenses Mrs. Scheitrum.

Chapter 14.  The brain judges the object location to be the location from which the image light rays originate.

Chapter 33 Lenses and Optical Instruments The Thin Lens Equation; Magnification Example 33-2: Image formed by converging lens. What are (a) the.

Ying Yi PhD Lab 5: Lenses 1 PHYS II HCC. Outline PHYS II HCC 2 Basic concepts: image, convex lens, concave lens, focal length Lab objectives.

Thin Lenses. Two Types of Lenses Converging – Thicker in the middle than on the edges FOCAL LENGTH (+) POSITIVE Produces both real and virtual images.

Thin Lenses.  When light passes through a lens, it refracts twice ◦ Once upon entering the lens and once upon leaving  Exiting ray is parallel to the.

Today 2/6  Lenses--Ray Diagrams and Math  Lab: Any Questions?  HW Questions?  Start reading chapter on Lenses  HW:2/6 Text Problem Ch 26 #55.

Lenses Topic 13.4.

Ch.13 Applications (應用) of Convex Lenses

Physics 2102 Jonathan Dowling Lecture 37: MON 20 APR Optics: Images.

Mirror Equations Lesson 4.

Physics 7E Prof. D. Casper.

13.4 The Lens Equation.

What Happens When… Light is transmitted through a glass shaped like a triangle? Light is transmitted straight toward a glass shaped like a square?

Thin Lenses-Intro Notes

Chapter 7 Light and Geometric Optics

Refraction at Spherical Surfaces.

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.

Equations with Lenses SNC2D.

What is a lens? A transparent object that refracts light rays, causing them to converge or diverge to create an image.

Thin Lens Equation 1

Presentation transcript:

PHY 1371Dr. Jie Zou1 Chapter 36 Image Formation (Cont.)

PHY 1371Dr. Jie Zou2 Outline Thin lenses Thin lens equation Lens makers’ equation Ray diagrams for thin lenses Magnification of thin lenses

PHY 1371Dr. Jie Zou3 Lenses How does a lens work: Light passing through a lens experiences refraction at two surfaces. The image formed by one refracting surface serves as the object for the second surface.

PHY 1371Dr. Jie Zou4 Thin lens equation Thin lens equation: f: the focal length of a thin lens, also the image distance corresponding to p = . Each lens has two focal points, F 1 and F 2. Lens makers’ equation: Follow the sign conventions for thin lenses. Magnification: M = h’/h = -q/p Biconvex (converging) lens Biconcave (diverging) lens

PHY 1371Dr. Jie Zou5 Sign conventions for thin lenses

PHY 1371Dr. Jie Zou6 Ray diagrams for thin lenses

PHY 1371Dr. Jie Zou7 Examples 1. A diverging lens has a focal length of cm. An object 2.00 cm tall is placed 30.0 cm in front of the lens. Locate the image. 2. A converging lens of focal length 10.0 cm forms an image of each of three objects placed (a) 30.0 cm, (b) 10.0 cm, and (c) 5.00 cm in front of the lens. In each case, find the image distance and describe the image.

PHY 1371Dr. Jie Zou8 Homework Ch. 36, P.1170, Problems: #28, 30, 40.