OE 171 Holography and Photography Fall Term 2014 Assignment #3 Due: October 16, 2014 1. List and briefly describe the characteristics of an image. 2. List and briefly describe the image characteristics of the three types of mirrors. 3. Explain what is meant by a focal point. 4. What are the two factors that determine the imaging characteristics of a lens? 5. List and briefly describe the image characteristics of the two types of lenses. 6. What is a Fresnel lens and briefly describe how to make one. 7. What are aberrations? Do they result from poor materials or workmanship? Explain. Extra Credit: EC1. Describe the differences between the images of the same scene formed by a convex lens and a concave lens. EC2. Will an underwater air pocket in the shape of a plano-convex lens act like a converging or a diverging lens? Explain.