## Nonimaging OpticsFrom its inception nearly 30 years ago, the optical subdiscipline now referred to as nonimaging optics, has experienced dramatic growth. The term nonimaging optics is concerned with applications where imaging formation is not important but where effective and efficient collection , concentration, transport and distribution of light energy is - i.e. solar energy conversion, signal detection, illumination optics, measurement and testing. This book will incorporate the substantial developments of the past decade in this field. * Includes all substantial developments of the past decade in the rapidly moving field of nonimaging optics * The only authoritative reference on nonimaging optics, from the leader in the field |

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A very good book of reference to understand and apply the concepts of CPC for designing solar power harvesting systems.The concepts are very well sequenced and bring out the physical meaning clearly.

### Contents

1 Nonimaging Optical Systems and Their Uses | 1 |

2 Some Basic Ideas in Geometrical Optics | 7 |

3 Some Designs of ImageForming Concentrators | 25 |

4 Nonimaging Optical Systems | 43 |

5 Developments and Modifications of the Compound Parabolic Concentrator | 69 |

6 The Flowline Method for Designing Nonimaging Optical Systems | 99 |

7 Concentrators for Prescribed Irradiance | 159 |

8 Simultaneous Multiple Surface Design Method | 181 |

The EdgeRay Theorem | 421 |

Conservation of Skew and Linear Momentum | 433 |

Conservation of Étendue for TwoParameter Bundles of Rays | 439 |

Perfect OffAxis Imaging | 449 |

The Luneberg Lens | 461 |

The Geometry of the Basic Compound Parabolic Concentrator | 467 |

The uiuo Concentrator | 471 |

The Truncated Compound Parabolic Concentrator | 473 |

9 Imaging Applications of Nonimaging Concentrators | 219 |

10 Consequences of Symmetry | 235 |

11 Global Optimization of HighPerformance Concentrators | 265 |

12 A Paradigm for a Wave Description of Optical Measurements | 305 |

13 Applications to Solar Energy Concentration | 317 |

14 Manufacturing Tolerances | 395 |

Derivation and Explanation of the Étendue Invariant Including the Dynamical Analogy Derivation of the Skew Invariant | 415 |

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### Common terms and phrases

absorber acceptance angle achieved angle angular applied assumed axis bundle calculated called cell Chapter collecting concentrator condition cone consider constant coordinate curve defined deviation diameter direction distribution edge rays edge-ray efficiency entry aperture equal equation errors étendue example exit aperture expression Figure flux function geometry given gives ideal illumination incidence input integral invariant length lens light limit lines Lorentz metric losses material maximum means measured method mirror nonimaging normal Note obtained optical system optimized parabolic parameters path performance phase space plane position possible primary principle problem qmax radius ratio receiver reflection reflector refractive index refractive surface region represented respect result rotational secondary shape shown in Figure shows skewness slope solar solution spherical surface symmetry theoretical tion trajectory transferred transmission upper vector Winston