chapter  14
28 Pages

Optical Instruments for Viewing Applications

WithAbdul Al-Azzawi

This chapter presents the use of the optical components, such as mirrors and lenses, in building common optical instruments. Such optical instruments include the eye, camera, projector, microscope, telescope, and binoculars, which are used for different vision enhancement applications. These optical instruments help people to perform ordinary and sophisticated tasks associated with vision, magnification, and image formation. Cameras are among the most common of optical instruments. Focusing of the image is accomplished by varying the distance between lens and film using a mechanical arrangement in most cameras. The major cause of blurred images is the movement of the camera or the object while the shutter is open. The eye focuses on an object by varying the shape of the flexible crystalline lens through an amazing process called accommodation. The chapter presents an experiment involving the operation, image formation, functionality, disassembly, and reassembly of the optical components of an optical viewing instrument.