1. Physics 52 - Heat and Optics Dr. Joseph F. Becker Physics Department San Jose State University © 2003 J. F. Becker San Jose State University Physics 52 Heat and Optics

2. Chapter 36 Optical Instruments © 2003 J. F. Becker San Jose State University Physics 52 Heat and Optics

3. Fig. 36-1 A typical single lens reflex camera. The lens has many elements cemented together to form a single compound lens. © 2003 J. F. Becker San Jose State University Physics 52 Heat and Optics

4. Fig. 36-2 The larger image size with a larger value of f corresponds to a smaller angle of view. © 2003 J. F. Becker San Jose State University Physics 52 Heat and Optics

5. Fig. 36-3 In a camera lens, larger f-numbers mean smaller aperture diameters. f-number = f / D where D = diameter of aperture © 2003 J. F. Becker San Jose State University Physics 52 Heat and Optics

6. Fig. 36-4 Principle of zoom lens: use two elements with variable spacing. The effective focal length depends on the distance between the two optical elements. © 2003 J. F. Becker San Jose State University Physics 52 Heat and Optics