Optics I: Imaging

Abstract

In this chapter, we explore how an image is formed onto the sensor surface. The actual sensing process is taken up in the last two chapters. In analyzing the process whereby a 3D world is projected on a 2D image plane, we consider two key issues:

• What determines the image point that corresponds to a particular world point?

• How bright will that point be?

Article Note

All this time the guard was looking at her, first through a telescope, then through an opera-glass, and then through a microscope. At last he said, ‘You’re travelling the wrong way,’ and shut up the window and went away. ‘So young a child,’ said the gentleman sitting opposite to her, ‘ought to know which way she is going, even if she doesn’t know her own name.’

Lewis Carroll, Through the Looking Glass