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.

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

Fig 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

Fig 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

Fig 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

Fig 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

Fig 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

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