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Snoopy : Contact!

RRP $14.95

First published in 1950, the classic Peanuts strip now appears in more than 2,200 newspapers in 75 countries in 25 languages. Phrases such as "security blanket" and "good grief," which originated in the Peanuts world, are now part of the global vernacular, and images of Charles Schulz's classic characters-Charlie Brown kicking the football, Lucy leaning over Schroeder's piano-are now universally recognized.

About the Author

Charles Schulz was both the brains and the brawn behind nearly 50 years of Peanuts comics from 1950 to his death in 2000.


The Ray And Wave Theory Of Lenses

RRP $137.95

Calculations on lens systems are often marred by the unjustifiable use of the small-angle approximation. This book describes in detail how the ray and wave pictures of lens behaviour can be combined and developed into a theory capable of dealing with the large angles encountered in real optical systems. A distinct advantage of this approach is that Fourier optics appears naturally, in a form valid for arbitrarily large angles. The book begins with extensive reviews of geometrical optiks, eikonal functions and the theory of wave propagation. The propagation of waves through lenses is then treated by exploiting the close connection between eikonal function theory and the stationary phase approximation. Aberrations are then discussed, and the book concludes with various applications in lens design and analysis, including chapters on laser beam propagation and diffractive optical elements. Throughout, special emphasis is placed on the intrinsic limitations of lens performance. The many practical insights it contains, as well as the exercises with their solutions, will be of interest to graduate students as well as to anyone working in optical design and engineering.



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