1. Fig. 35-31 Lensmaker’s equation for a thin lens: 1 / f = (n – 1) (1 /R 1 - 1 /R 2 ) © 2003 J. F. Becker San Jose State University Physics 52 Heat and Optics

2. Fig. 35-32 Principal-ray diagrams showing the graphical method of locating an image formed by a thin lens (converging and diverging). © 2003 J. F. Becker San Jose State University Physics 52 Heat and Optics

3. Fig. 35-33 Formation of images by a thin converging lens for various object distances. © 2003 J. F. Becker San Jose State University Physics 52 Heat and Optics

4. Fig. 35-34 Principal-ray diagram for an image formed by a thin diverging lens. © 2003 J. F. Becker San Jose State University Physics 52 Heat and Optics

5. Fig. 35-35 The real image of the first lens acts as the object for the second lens. © 2003 J. F. Becker San Jose State University Physics 52 Heat and Optics

6. Fig. 35-36 The image produced by first lens acts as a virtual object for the second lens. © 2003 J. F. Becker San Jose State University Physics 52 Heat and Optics

7. Review © 2003 J. F. Becker San Jose State University Physics 52 Heat and Optics