Chapter 7 - Optical Illusions of Depth and of DistanceIf more of us valued food and cheer and song above hoarded gold, it would be a merrier world. - J.R.R. Tolkien
spc Bd 1 Bd 3
Share This Page

Chapter 7 - Optical Illusions of Depth and of Distance

Chapter 7 - Optical Illusions of Depth and of Distance
Distance Optical Illusion
Courtesy of

When any of the ordinary criteria of relief or of distance are apparently modified, optical illusions of depth and distance are possible. There are many illusions of this sort, such as the looming of objects in a fog; the apparent enlargement of the sun and moon near the horizon; the flattening of the "vault" of the sky; the intaglio seen as relief; the alteration of relief with lighting; and various changes in the landscape when regarded with the head inverted.

Certain data pertaining to the objects viewed must be assumed, and if the assumptions are incorrect, illusions will result.

An increase in the brightness of an object is accompanied by an apparent movement toward the observer, and conversely a decrease in brightness produces an apparent movement in the opposite direction.

H. A. Carr's report on optical illusions of distance, motion and movement is discussed.

Click the link below to start reading this chapter.

About This Book Preface Chap 1, Introduction Chap 2, The Eye Chap 3, Vision Chap 4, Geometrical Chap 5, Figures Chap 6, Angles Chap 7, Depth/Distance Chap 8 Brightness/Contrast Chap 9, Color Chap 10, Lighting Chap 11, Nature Chap 12, Painting/Decorating Chap 13, Architecture Chap 14, Magic Mirror Chap 15, Camouflage

Optical Illusions

We have free optical illusions, eye illusions, scary illusions, picture illusions and more.
Get the Explanation
for this
Optical Illusion
Link To This Site Send Site To A Friend See Related Links Link To The Site Map Comments/Suggestions
Contact Us Report A Broken Link To Us

Viagra sales online. Get the best buy on Viagra.

Are you concerned about vitamin d deficiency? See us for natural health supplements.

Optical Illusions

Visual Illusions

Optical Illusions Book


Site Map | Terms of Use | Privacy & Security | Contact Us | Purchase Agreement | Send Feedback
An optical illusions book discussing the science of optical illusions.
© 1996-2011 by All Rights Reserved.