[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"doc-seo-134556-105":3,"detail-sidebar-cat-0-en-105":80,"doc-detail-134556-en":130},{"code":4,"msg":5,"data":6},0,"ok",{"site_id":7,"language":8,"slug":9,"title":10,"keywords":11,"description":12,"schema_data":13,"social_meta":73,"head_meta":75,"extra_data":77,"updated_unix":79},105,"en","op-art-after-image-optical-illusions-types","Op Art - After Image - Optical Illusions Types","","Op Art uses hard-edged shapes and strong color contrast to create striking visual effects, including the illusion of three-dimensional space. The material introduces key optical illusion types, explaining how an after image continues to appear after viewing ends through excessive retinal stimulation. It also explores distortion illusions like the Café Wall, ambiguous figures such as the necker cube and Rubin’s vase, and impossible constructions including Penrose triangles, staircase paradoxes, and related Escher-inspired designs.",{"@graph":14,"@context":72},[15,34,55],{"@type":16,"itemListElement":17},"BreadcrumbList",[18,23,27,31],{"item":19,"name":20,"@type":21,"position":22},"https://docshare.wps.com","Home","ListItem",1,{"item":24,"name":25,"@type":21,"position":26},"https://docshare.wps.com/document/","Document",2,{"item":28,"name":29,"@type":21,"position":30},"https://docshare.wps.com/document/lifestyle/","Lifestyle",3,{"item":32,"name":10,"@type":21,"position":33},"https://docshare.wps.com/document/op-art-after-image-optical-illusions-types/134556/",4,{"url":32,"name":10,"@type":35,"image":36,"author":41,"headline":10,"publisher":44,"fileFormat":47,"inLanguage":8,"description":12,"dateModified":48,"datePublished":49,"encodingFormat":47,"isAccessibleForFree":50,"interactionStatistic":51},"DigitalDocument",{"url":37,"@type":38,"width":39,"height":40},"https://docshare.wps.com/thumbnails/op-art-after-image-optical-illusions-types/134556.png","ImageObject",300,407,{"name":42,"@type":43},"\tCallum ","Person",{"url":19,"name":45,"@type":46},"DocShare","Organization","application/pdf","2026-09-22","2026-08-20",true,{"@type":52,"interactionType":53,"userInteractionCount":33},"InteractionCounter",{"@type":54},"ViewAction",{"@type":56,"mainEntity":57},"FAQPage",[58,64,68],{"name":59,"@type":60,"acceptedAnswer":61},"What is an after image in optical illusions?","Question",{"text":62,"@type":63},"An after image is an image that continues to appear in vision after stopping the original look. It can create effects like a glow that seems to float when staring at a bright light then looking away.","Answer",{"name":65,"@type":60,"acceptedAnswer":66},"How does the Café Wall illusion create distortion?",{"text":67,"@type":63},"The Café Wall illusion makes viewers question whether diagonal lines exist. It uses contrasting patterns and tile-like structure to produce a misleading sense of slanting.",{"name":69,"@type":60,"acceptedAnswer":70},"What is ambiguous about the necker cube and Rubin’s vase?",{"text":71,"@type":63},"The necker cube forces the viewer to decide which lines are in front or behind, while Rubin’s vase toggles perception between face and vase. Both rely on figure-ground switching and multiple valid interpretations.","https://schema.org",{"og:url":32,"og:type":74,"og:title":10,"og:site_name":45,"og:description":12},"article",{"robots":76,"canonical":32},"index,follow",{"doc_id":78,"site_id":7},134556,1787268413,{"code":4,"msg":81,"data":82},"success",[83,87,91,95,100,105,110,115,120,123,126],{"id":22,"doc_module":4,"doc_module_name":25,"category_name":84,"show_sort_weight":85,"slug":86},"Story & Novel",90,"story-novel",{"id":26,"doc_module":4,"doc_module_name":25,"category_name":88,"show_sort_weight":89,"slug":90},"Literature",80,"literature",{"id":33,"doc_module":4,"doc_module_name":25,"category_name":92,"show_sort_weight":93,"slug":94},"Exam",70,"exam",{"id":96,"doc_module":4,"doc_module_name":25,"category_name":97,"show_sort_weight":98,"slug":99},5,"Comic",60,"comic",{"id":101,"doc_module":4,"doc_module_name":25,"category_name":102,"show_sort_weight":103,"slug":104},6,"Technology",50,"technology",{"id":106,"doc_module":4,"doc_module_name":25,"category_name":107,"show_sort_weight":108,"slug":109},7,"Healthcare",40,"healthcare",{"id":111,"doc_module":4,"doc_module_name":25,"category_name":112,"show_sort_weight":113,"slug":114},8,"Research & Report",30,"research-report",{"id":116,"doc_module":4,"doc_module_name":25,"category_name":117,"show_sort_weight":118,"slug":119},9,"Religion & Spirituality",20,"religion-spirituality",{"id":118,"doc_module":4,"doc_module_name":25,"category_name":121,"show_sort_weight":118,"slug":122},"World Cup","world-cup",{"id":124,"doc_module":4,"doc_module_name":25,"category_name":29,"show_sort_weight":124,"slug":125},10,"lifestyle",{"id":127,"doc_module":4,"doc_module_name":25,"category_name":128,"show_sort_weight":96,"slug":129},19,"General","general",{"code":4,"msg":81,"data":131},{"doc_id":78,"user_id":132,"nickname":42,"user_avatar":133,"doc_module":4,"category_id":124,"category_name":29,"doc_title":10,"doc_description":12,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":33,"is_deleted":4,"is_public":22,"is_downloadable":22,"audit_status":22,"page_count":108,"language":139,"language_code":8,"site_id":7,"html_lang":8,"table_of_contents":140,"faqs":141,"seo_title":142,"seo_description":12,"update_tm":79,"read_time":143},137451211410,"https://ap-avatar.wpscdn.com/avatar/2000bb0a9246f588df?x-image-process=image/resize,m_fixed,w_180,h_180&k=1786362646172706240","~~  ~~OPTICAL~~ ~~ART~~  ~~  \nOp Art is a style of art making that uses hard edged shapes and color contrast to create the illusion of 3-D space.  \nCheck out this painting by one of the most famous Op artists, Victor Vasarely.  \nFIRST LETS DISCUSS SOME DIFFERENT TYPES OF  \nOPTICAL ILLUSIONS  \nOne type of optical illusion is the “after  \nimage”  \nThe after image refers to an image that continues to appear in your vision after you have stopped looking at it.  \nOne common after image is when you look at a light bulb for a few seconds and then experience a glow floating in front of your eyes when you look away.  \nWe know that the black dots are not there, but our eye’s see them anyway because of the excessive stimulation of the image. The image is very “busy.” It is also black and white, which are high contrasts.  \nCHECK THIS ONE OUT! STARE AT THE BLACK DOT IN THE UPPER RECTANGLE FOR THIRTY  \nSECONDS. THEN MOVE YOUR EYE TO THE DOT IN THE LOWER RECTANGLE. WHAT DO YOU SEE?  \nDISTORTION ILLUSIONS  \nThe Café Wall illusionAre there any diagonal lines in this image????  \nCheck out this cool building in Australia that was inspired by the Café Wall Illusion!  \nAMBIGUOUS ILLUSIONS  \nThe necker cube: Which lines are in front? Which are behind?  \nTumbling Blocks: Which blocks are concave?  \nWhich are convex?  \nRubin’s Vase  \nDO YOU SEETHE FACE OR  \nTHE VASE? CAN YOU SEE THEM BOTH AT ONE TIME?  \nWHICH IS THE POSITIVE SPACE?  \nWHICH IS THE NEGATIVE SPACE?  \nIMPOSSIBLE WORLDS AND OBJECTS  \nThe Penrose triangle, or Tri Bar: This is not possible in the “real world.”However, there have been 3 D constructions of the tri-bar that are truly  \nconvincing.  \nLeT’s TaLK abOuT PaRaDOXes  \nThe Penrose staircaseOne could go up or down the stairs forever in a continuous loop! How  \ncrazy…  \nMC Escher was clearly influenced by the Penrose stairs. You can see them here in his famous print, Ascending  \nand Descending.  \nTHE SIMPSONS-TREE HOUSE OF HORROR 4 I THINK I SEE AN IMPOSSIBLE STAIRCASE!  \nSCHRODER STAIRS: DO YOU SEE TWO DIFFERENT STAIRCASES: ONE GOING UP FROM RIGHT TO LEFT, THE OTHER TURNED UPSIDE DOWN? MC ESCHER WAS ALSO INSPIRED BY THESE  \nSTAIRS. YOU CAN SEE  \nTHEM IN HIS PRINT, RELATIVITY.","cbCaitl9ckqXJcrw","https://ap.wps.com/l/cbCaitl9ckqXJcrw","pdf",3688287,"English","# Op Art Overview\n## After Image\n## Distortion Illusions\n## Ambiguous Illusions\n## Impossible Worlds and Objects\n## Paradoxes and Escher-Inspired Staircases","[{\"question\":\"What is an after image in optical illusions?\",\"answer\":\"An after image is an image that continues to appear in vision after stopping the original look. It can create effects like a glow that seems to float when staring at a bright light then looking away.\"},{\"question\":\"How does the Café Wall illusion create distortion?\",\"answer\":\"The Café Wall illusion makes viewers question whether diagonal lines exist. It uses contrasting patterns and tile-like structure to produce a misleading sense of slanting.\"},{\"question\":\"What is ambiguous about the necker cube and Rubin’s vase?\",\"answer\":\"The necker cube forces the viewer to decide which lines are in front or behind, while Rubin’s vase toggles perception between face and vase. Both rely on figure-ground switching and multiple valid interpretations.\"}]","Op Art - After Image - Optical Illusions Types | PDF",62]