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Spie Press Book

Basic Electro-Optics for Electrical Engineers
Author(s): Glenn D. Boreman
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Book Description

This text introduces imaging, radiometry, sources, detectors, and lasers, with special emphasis on flux-transfer issues. The first-order approach enables students to make back-of-the-envelope calculations needed for initial setup of optical apparatus. It is intended for students and newcomers to electro-optics.

Book Details

Date Published: 27 March 1998
Pages: 108
ISBN: 9780819428066
Volume: TT31

Table of Contents
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Preface vii
1 Geometrical Optics 1
1.1 Introduction / 1
1.2 Electromagnetic Spectrum / 1
1.3 Rays / 2
1.4 Imaging Concepts / 3
1.5 Aperture Stop, Marginal Ray, and F/# / 8
1.6 Field Stop, Chief Ray, and Field of View / 9
1.7 Thick Lenses and Lens Combinations / 11
1.8 Image Quality and Diffraction / 16
1.9 Image Quality and Aberrations / 18
1.10 Materials Considerations / 19
2 Modulation Transfer Function 23
2.1 Introduction / 23
2.2 Transfer Functions / 25
2.3 Resolution / 27
2.4 MTF Calculations / 29
3 Radiometry 31
3.1 Introduction / 31
3.2 Solid Angle / 32
3.3 Flux-Transfer Calculations / 33
4 Sources of Radiation 47
4.1 Introduction / 47
4.2 Blackbody Radiation / 48
4.3 Emissivity / 51
5 Detectors 55
5.1 Introduction / 55
5.2 Cutoff Wavelength / 56
5.3 Cooling Requirements / 57
5.4 Spectral Responsivity / 58
5.5 Frequency Response and Noise-Equivalent Bandwidth / 60
5.6 Noise Terminology / 62
5.7 Shot Noise and Generation-Recombination Noise / 64
5.8 Johnson Noise and 1/f Noise / 67
5.9 Noise Specification of Detectors: Noise-Equivalent Power / 69
5.10 Normalized Detectivity D* / 71
5.11 Photovoltaic Detectors / 72
5.12 Schottky-Barrier Detectors / 76
5.13 Photoconductive Detectors / 77
5.14 Photoemissive Detectors / 78
5.15 Bolometric Detectors / 79
5.16 Pyroelectric Detectors / 80
6 Lasers 83
6.1 Introduction / 83
6.2 Directionality, Monochromaticity, and Brightness / 83
6.3 Gaussian Beams / 85
6.4 Temporal Laser-Beam Measurements / 90
6.5 Spatial Laser Beam Measurements / 90
Index 95

This Tutorial Text is an outgrowth of a course taught by the author during the past ten years. Written in a straightforward manner, the book covers basic optical engineering concepts in a manner accessible to anyone with a preparation equivalent to a bachelor's degree in electrical engineering.

The coverage includes imaging, radiometry, sources, detectors, and lasers, with special emphasis on flux-transfer issues. A first-order approach is taken throughout, so that the student can quickly make the back-of-the-envelope calculations necessary for initial setup of optical apparatus. The treatment is at an elementary conceptual and computational level.

This book is meant to be used to solve practical problems encountered by the student new to electro-optics. While such topics as the eikonal equation or the method of stationary phase may be valuable for advanced students, more important for the young engineer is the ability to answer questions such as: where is the image, how big is it, how much light gets to the detectors, and how small of an object can we see? Basic Electro-Optics for Electrical Engineers helps answer those, and other, questions.


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