A Course in Lens Design by Chris Velzel

By Chris Velzel

A path in Lens layout is an guideline within the layout of image-forming optical platforms. It teaches how a passable layout will be received in a simple means. thought is proscribed to a minimal, and used to help the sensible layout paintings. The publication introduces geometrical optics, optical tools and aberrations. It supplies an outline of the method of lens layout and of the suggestions utilized in this technique. half its content material is dedicated to the layout of 16 sorts of lenses, defined intimately from commencing to finish. This publication isn't like such a lot different books on lens layout since it stresses the significance of the preliminary stages of the layout method: (paraxial) lay-out and (thin-lens) pre-design. The argument for this variation of accessory is that during those levels a lot info might be bought concerning the homes of the lens to be designed. this knowledge can be utilized in later levels of the layout. This makes A path in Lens layout an invaluable self-study ebook and an appropriate foundation for an introductory direction in lens layout. the maths ordinarily used is university algebra, in a number of sections calculus is utilized. The publication will be utilized by scholars of engineering and technical physics and via engineers and scientists.

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5 lux. This is enough for a well-adapted eye to perceive a clear screen image. More on the subject of illumination is found in Mouroulis and Macdonald [5]. References 1. 2. 3. 4. E. Hecht, Optics, 4th ed. S. Longhurst, Geometrical and Physical Optics, 2nd ed. S. van Heel, Inleiding in de Optica (M. Nijhoff, Boston, 1950) C. Shannon, W. Weaver, The Mathematical Theory of Communication (University of Illinois Press, Urbana, 1964) 5. P. Mouroulis, J. 1 Wavefronts and Aberrations The centered system has only aberrations of uneven order.

S4)/H2; the curvature of the sagittal image surface is given by (S3 ? S4)/H2; the quantity S4/H2 is called the Petzval curvature.

16 Slide projector Throughput is also important in the description of the channel capacity; according to Shannon [4] this is the number of bits that can be transported per second through the system. The channel capacity is proportional to the number of degrees of freedom N, defined as S0 N¼ SD where S0 is the area of the object and SD is the area of the object-side diffraction spot, SD ¼ k2 p n2 sin2 u 4 so that we have N ¼ S0 sin2 u 4n2 pk2 Because throughput is an invariant (*H2) also N is invariant (the ‘‘pixel theorem’’).

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