Problem 4: The human eye can be approximated by a two-lens optical system. Light enters the eye and first travels through the cornea. The cornea has a fixed focal length of 4.16666 cm. Next, light travels through the center of the crystalline lens which has a focal length that can change. For healthy eyes, the crystalline lens is set 0.50000 cm behind the cornea and can vary in focal length from 9.0000 cm to 16.5000 cm. The retina acts as an image screen upon which real images are focused for processing by the brain. The retina is 3.0000 cm behind the crystalline lens. a) Draw a simple diagram of cornea, crystalline lens, and retina for this model eye.

Problem 4: The human eye can be approximated by a two-lens optical system. Light enters the eye and first travels through the cornea. The cornea has a fixed focal length of 4.16666 cm. Next, light travels through the center of the crystalline lens which has a focal length that can change. For healthy eyes, the crystalline lens is set 0.50000 cm behind the cornea and can vary in focal length from 9.0000 cm to 16.5000 cm. The retina acts as an image screen upon which real images are focused for processing by the brain. The retina is 3.0000 cm behind the crystalline lens. a) Draw a simple diagram of cornea, crystalline lens, and retina for this model eye.

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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А. В. C. G. Н. I. J. К. D. E. М. F. N. A (Choose) B (Choose) (Choose) [Choose ] Base D (Choose) Stage Nosepiece E (Choose) Arm Stage clip (Choose) Slide holder Objectives (Choose) Condenser Light source Condenser adjustment Body Tube Coarse focus (Choose) (Choose) Iris diaphragm Oculars (Choose) K (Choose) Fine focus L (Choose) (Choose) (Choose) > > > > > > > > > > > > > >
2. Calculate the field of views using the given information: A.Scanning power objective= 5x; low power objective=10x; eyepiece= 5x; scanning power field of view (FOV)= 3.5 mm; what is the low power field of view?
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