Published online by Cambridge University Press: 23 September 2019
Ray tracing originated in optics to determine the path of light. However, ray tracing is used in modern technology by many fields, such as acoustics and computer graphics. Ray tracing is at the heart of optical design. Most optical calculations are done by tracing rays of light and, therefore, for competent lens design, it is important to have an understanding about how ray tracing is performed. This chapter provides an introduction to ray tracing, to ray tracing pitfalls, and to some useful ray tracing techniques.
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