Download Modern Optical Engineering: The Design of Optical Systems by Warren J. Smith PDF

By Warren J. Smith

A revised model of a textual content which was once first released in 1966. The e-book is designed as a common reference e-book for engineers and assumes a vast wisdom of present optical platforms and their layout. extra subject matters contain fibre optics, skinny movies and CAD structures.

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Read or Download Modern Optical Engineering: The Design of Optical Systems (Optical and Electro-Optical Engineering Series) PDF

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Additional resources for Modern Optical Engineering: The Design of Optical Systems (Optical and Electro-Optical Engineering Series)

Example text

The light travels from left to right. (In Fig. ) A set of equations which will allow us to trace the path for the ray may be derived as follows. 17) Applying Snell’s law (Eq. 18) The exterior angle QCO of triangle PQC is equal to ϪU ϩ I, and, as the exterior angle of triangle P′QC, it is also equal to ϪU ′ ϩ I ′. 19) From right triangle QA′C we get CA′ sin I′ ϭ ᎏ R and substituting Eqs. 20 into Eq. 22) Thus, beginning with a ray defined by its slope angle U and its intersection with the axis L, we can determine the corresponding data, U′ and L′, for the ray after refraction by the surface.

A setup similar to Fig. 15 can obviously be used to measure the wavelength of light if the radius of curvature of the lens is known and a careful measurement of the diameters of the light and dark fringes is made. 8) where Y is the semidiameter of the ring measured. SH is equal to ␭/4 for the first bright ring, ␭/2 for the first dark ring, 3␭/4 for the second bright ring, and so on. 6 The Photoelectric Effect In the preceding section, the discussion was based upon the assumption that light was wavelike in nature.

This can be accomplished by calculating the paths of a number of rays from each object point through the optical system, applying Snell’s law (Eq. 3) at each raysurface intersection in turn. However, it is possible to locate optical images with considerably less effort by means of simple equations derived from the limiting case of the trigonometrically traced ray (as the angles involved approach zero). These expressions yield image positions and sizes which would be produced by a perfect optical system.

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