Optical System Design
Taking the math and the mystery out of optical design, this comprehensive book uses a graphics-oriented approach, making optical design techniques easy to understand through hundreds of detailed diagrams.
TABLE OF CONTENTS Optical System Design
Chapter 1: Basic Optics and Optical System Specifications
This chapter will discuss what a lens or mirror system does and how we specify an optical system. You will find that properly and completely specifying a lens system early in the design cycle is an imperative ingredient required to design a good system.
The Purpose of an Imaging Optical System
The purpose of virtually all image-forming optical systems is to resolve a specified minimum-sized object over a desired field of view. The field of view is expressed as the spatial or angular extent in object space, and the minimum-sized object is the smallest resolution element which is required to identify or otherwise understand the image. The word "spatial" as used here simply refers to the linear extent of the field of view in the plane of the object. The field of view can be expressed as an angle or alternatively as a lateral size at a specified distance. For example, the field of view might be expressed as 10 10 , or alternatively as 350 350 m at a distance of 2 km, both of which mean the same thing.
A good example of a resolution element is the dot pattern in a dot matrix printer. The capital letter E has three horizontal bars, and hence five vertical resolution elements are required to resolve the letter. Horizontally, we would require three resolution elements. Thus, the minimum number of resolution elements required to resolve capital letters is in the vicinity of five vertical by three horizontal. Figure...
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