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By Michael P. Keating PhD

A easy optics textbook that integrates correct visible and ophthalmic optics fabric with easy geometric and actual optics. Dr. Keating's ebook makes use of the vergence method of optics in addition to the wavefront method of vergence as an reduction to constructing optics instinct

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Additional resources for Geometric, Physical, and Visual Optics

Example text

At 17 in? 9. 00 D diverging wavefront in air, how far (in cm) is the wave from its point source? 00 D wavefront? 10. 00 D converging wavefront, how far (in cm) is the image point? 00 D wavefront? 11. An object is 6 m from a pinhole. A screen is placed 15 cm behind the pinhole. When the object is 2 m tall, what is the size of the image? 12. If the screen in no. 11 is moved closer to the pinhole, what happens to the image? If the screen is moved further from the pinhole, what happens to the image?

13. Which point (A, B, C, or D) is the object position for lens 2? Does lens 2 have a real or virtual object? Which point serves as the image for lens 2? Is the image for lens 2 real or virtual? Is lens 2 a converging or a diverging lens? What point is the center of curvature of the wavefront incident on lens 2? 3. 13. Which point (A, B, C, or D) is the image position for lens 1? Does 1 Α<^^ 4. B 9. 10. 11. 39 lens 1 have a real or virtual image? Is lens 1 a converging or a diverging lens?

Plane waves in air incident on a concave air-glass interface, b. In the glass, the edges of the wave lag behind the middle, c. The resulting diverging wavefronts in the glass. 5. a, A converging lens with two converging surfaces. b. A diverging lens with two diverging surfaces. 4. a. Plane waves in the glass incident on the concave interface of the previous figure, b. In the air, the middle of the wavefronts leads the edges resulting in diverging waves. 6b, the diverging surface (right) has more power than the converging surface (left).

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