The links below provide an outline of the material for this lesson. 4.0 Introduction 4.1 Overview of Concentrating Collectors 4.2 Non-Imaging Concentrators 4.3 Imaging Concentrators 4.4. Assignment 4.5. Summary and Final Tasks Book traversal links for Lesson 4: Concentrating Collector Systems ‹ 3.5 Summary and Final Tasks Up 4.0 Introduction › Printer-friendly version