History of curiosity

Abstract

A brief introduction to high-speed cameras is presented. The most frequently asked question is "Why do we need high-speed cameras?" To this we answer with three typical situations of an object: (1) it remains still, (2) it is moving, and (3) it is observed under a microscope. For the next question "How can we acquire high-speed images?" two important factors (1. illumination and 2. Trigger) are discussed. One example is shown, where it is very difficult to find an appropriate trigger as well as illumination device. As the last part of this chapter there follows a summary of this book.