Preface to the First Edition
This book is an introduction to nonimaging optics or anidolic optics. The term nonimaging comes from the fact that these optics do not form an image of an object, they are nonimaging. The word anidolic comes from the Greek (an+eidolon) and has the same meaning. The words anidolico/anidolica are mostly used in the Latin languages, such as Spanish, Portuguese, or French, whereas nonimaging is more commonly used in English.
Many optical systems are designed to form the image of an object. In these systems, we have three main components: the object, the optic, and the image formed. The object is considered as being a set of light-emitting points. The optic collects that light (or part of it) and redirects it to an ...
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