Optical Formulas Tutorial, 2nd Edition
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Designed for students and professionals preparing for the ABO certification exam or wishing to quickly brush up on optical formulas, this easy-to-use workbook contains optical formulas, definitions, and walk-through problems with practical examples throughout. Rather than searching through dozens of optics books, readers will find all relevant information here in one source. Coverage includes everything from sine, cosine and tangent to resultant prism and resolving prism to polarized filters - and much more!
- Features a user-friendly format that facilitates the review process, with practical examples throughout.
- Provides a convenient review of optical formulas and basic math problems.
- Begins each chapter with a brief discussion of the topic, then proceeds with exercises and examples; answers are provided at the end of the book.
- New work-text design allows the reader to complete practice exercises within the book and section being studied.
- More complex formulas include "how to use the calculator" boxes, and multiple choice review sections have been added to the sections.
- Advanced exercises such as non-formula exercises are now included throughout.
Section I: Math Review
Significance and Precision
Sine, Cosine, Tangent
Section II: Theory of Light
Properties of waves
Properties of Rays
Absorption, reflection, refraction
Law of reflection
Laws of refraction
Index of refraction
Dispersion and Abbé number
Section III: Lenses
Refraction through a lens
Focal length formula
Radius of curvature
Surface power formula
Nominal power formula
The lensmaker's equation
Cylinders, compound lenses
Cross cylinder transposition
Circle of least confusion
Types of Ametropias
With and Against the Rule Astigmatism
Power in oblique meridians
Vertex distance and effective power
Back and Front Vertex Power
Section IV: Prisms
Dispersion of Light by a Prism
Object Displacement by a Prism
Section V: Surfacing and Finishing
Lens and frame measurements
Frame Center Distance
Segment Height and Drop
Segment Inset and Total Inset
Minimum blank size
Refractive Power Formula
Sagittal depth and lens thickness
Section VI: Advanced Lens Formulas
Martin's formula for lens tilt
Thompson's formula for obliquely crossed
Fresnel's equation for reflection
Transmission through absorptive lenses
Section VII: Image Formation
Image size and placement: mirrors
Image size and placement: thin lenses
Image size and placement: thick lenses
Diagram of the human eye
1. Basic Glossary
2. ANSI Standards: Z80.1-1999
3. Optical Symbols and Formulas
4. Trigonometric Tables
5. Oblique Meridian (sine-squared method) table
7. Answer Key
Ellen D. Stoner, ABOM, Former Director of Opticianry Program, Durham Technical Community College, Durham, NC