दृष्टिभ्रम

thumb|right|An optical illusion. The square A is exactly the same shade of gray as square B. See checker shadow illusion thumb|right|A scintillating grid illusion. Shape, position, colour, and 3D contrast converge to produce the illusion of black dots at the intersections. दृष्टिभ्रम (optical illusion), एक प्रकाशीय विभ्रम है जिसमें वास्तविक वस्तु के बजाय एक भिन्न वस्तु या आकृति नजर आती हैं। बाहरी कड़ियाँ Optical Illusions & Visual Phenomena by Michael Bach Optical Illusions Database by Mighty Optical Illusions Optical Illusions https://web.archive.org/web/20100221071210/http://opticalillusion4u.webs.com/ 21 फ़रवरी 2010 Real Visual Phenomena Optical illusions and perception paradoxes by Archimedes Lab http://ilusaodeotica.com https://web.archive.org/web/20100419004856/http://ilusaodeotica.com/ 19 अप्रैल 2010 hundreds of optical illusions Project LITE Atlas of Visual Phenomena https://web.archive.org/web/20100329231919/http://lite.bu.edu/vision/applets/lite/lite/lite.html 29 मार्च 2010 Akiyoshi's illusion pages Professor Akiyoshi KITAOKA's anomalous motion illusions Spiral Or Not? by Enrique Zeleny, Wolfram Demonstrations Project Magical Optical Illusions https://web.archive.org/web/20100218030035/http://rangki.com/optical/ 18 फ़रवरी 2010 by Rangki Hunch Optical Illusions https://web.archive.org/web/20100501173037/http://hunch.com/optical-illusions/ 1 मई 2010 by Hunch *