Last posts on illusion d'optique 2026-11-10T08:22:18+01:00 All Rights Reserved blogSpirit https://www.hautetfort.com/ https://www.hautetfort.com/explore/posts/tag/illusion%20d%27optique/atom.xml galavent http://regardssurunevissansfin.hautetfort.com/about.html Illusion 1 tag:regardssurunevissansfin.hautetfort.com,2015-09-15:5685103 2015-09-15T07:36:00+02:00 2015-09-15T07:36:00+02:00 v:* {behavior:url(#default#VML);}o:* {behavior:url(#default#VML);}w:*... <p><!--[if !mso]><style>v:* {behavior:url(#default#VML);}o:* {behavior:url(#default#VML);}w:* {behavior:url(#default#VML);}.shape {behavior:url(#default#VML);}</style><![endif]--></p><p><!--[if gte mso 9]><xml> <o:OfficeDocumentSettings> <o:TargetScreenSize>800x600</o:TargetScreenSize> </o:OfficeDocumentSettings></xml><![endif]--><!--[if gte mso 9]><xml> <w:WordDocument> <w:View>Normal</w:View> <w:Zoom>0</w:Zoom> <w:TrackMoves/> <w:TrackFormatting/> <w:HyphenationZone>21</w:HyphenationZone> <w:PunctuationKerning/> 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<w:LsdException Locked="false" Priority="66" Name="Medium List 2 Accent 1"/> <w:LsdException Locked="false" Priority="67" Name="Medium Grid 1 Accent 1"/> <w:LsdException Locked="false" Priority="68" Name="Medium Grid 2 Accent 1"/> <w:LsdException Locked="false" Priority="69" Name="Medium Grid 3 Accen galavent http://regardssurunevissansfin.hautetfort.com/about.html Trouble 1 tag:regardssurunevissansfin.hautetfort.com,2015-04-08:5597959 2015-04-08T06:51:00+02:00 2015-04-08T06:51:00+02:00 Il est peint et il conserve son trouble&nbsp;: des points et lignes... <p style="margin: 0cm 0cm 0pt; text-align: justify;"><span style="font-family: book antiqua,palatino; font-size: medium;"><span style="mso-bidi-font-size: 14.0pt; mso-ansi-language: FR;">Il est peint et il conserve son trouble&nbsp;:</span><span style="mso-ansi-language: FR; mso-bidi-font-family: 'Lucida Sans Unicode';"> des points et lignes noires apparaissent entre les signes blancs et reviennent aussitôt les points et lignes noires en surimpression sur le noir. Ce sont les mystères des illusions d’optique. Elles forment une sorte de toile d'araignée derrière le dessin visible. </span></span></p><p style="margin: 0cm 0cm 0pt; text-align: justify;"><span style="font-family: book antiqua,palatino; font-size: medium; mso-ansi-language: FR; mso-bidi-font-family: 'Lucida Sans Unicode';">Ces points et ces lignes sont des signes de l’invisible derrière le visible. Plus forts que le virtuel, ils existent sans exister. Ils ne sont pas visibles et pourtant on les voit.</span></p><p style="text-align: center;"><img id="media-4998564" style="margin: 0.7em 0;" title="" src="http://regardssurunevissansfin.hautetfort.com/media/01/01/1478495178.JPG" alt="peinture,optique art,art cinétique,illusion d'optique" />&nbsp;</p><p style="margin: 0cm 0cm 0pt;"><span style="font-family: 'Century Schoolbook','serif'; font-size: small; mso-bidi-font-size: 14.0pt; mso-ansi-language: FR;">&nbsp;Pardonnez la mauvaise photo, mal cadrée !</span></p> Greg Armatory http://dartetdamour.hautetfort.com/about.html Les Dessins 3D d'Alessandro Diddi [Art] tag:dartetdamour.hautetfort.com,2015-03-31:5594068 2015-03-31T10:43:00+02:00 2015-03-31T10:43:00+02:00 Difficile de croire que ce dessin est en 2D et pourtant... C'est la... <p style="text-align: center;"><a href="http://dartetdamour.hautetfort.com/media/02/01/3289737044.jpg" target="_blank"><img id="media-4989332" style="margin: 0.7em 0;" title="" src="http://dartetdamour.hautetfort.com/media/02/01/410559808.jpg" alt="dessins, dessins 3D, alessandro diddi" /></a></p><p style="text-align: justify;"><span style="font-size: small; color: #000000;"><em>Difficile de croire que ce dessin est en 2D et pourtant... C'est la grande originalité de l'art de Alessandro Diddi, basé sur la maîtrise de la perspective et de l'illusion d'optique (anamorphose). Un résultat bluffant : ses oeuvres sont aussi stupéfiantes pour l'oeil que magiques pour l'esprit. Chapeau l'artiste, du grand art !</em></span></p><p style="text-align: center;"><span style="color: #3366ff; font-size: medium;"><a href="http://funtastique.fr/les-dessins-3d-dalessandro-diddi/" target="_self"><span style="color: #3366ff;">La galerie complète </span></a></span></p><p style="text-align: center;">&nbsp;</p><p style="text-align: center;">&nbsp;</p><p style="text-align: left;"><span style="color: #000000;"><em><span style="font-size: small;"><span style="background-color: #ffffff;">Ce blog c'est pas juste un passe-temps</span><br /><span style="background-color: #ffffff;">j'y bosse dur tous les jours</span><br /><span style="background-color: #ffffff;">Je ne te demande pas d'argent</span><br /><span style="background-color: #ffffff;">mais juste en retour</span><br /><span style="background-color: #ffffff;">un petit commentaire</span><br /><span style="background-color: #ffffff;">Ce sera mon salaire</span><br /><span style="background-color: #ffffff;">C'est plus précieux que ça en a l'air</span></span></em></span></p> galavent http://regardssurunevissansfin.hautetfort.com/about.html Patchwork indien tag:regardssurunevissansfin.hautetfort.com,2014-11-29:5498940 2014-11-29T07:21:00+01:00 2014-11-29T07:21:00+01:00 Ce patchwork procure une illusion d’optique&nbsp;: un fond blanc à côté... <p style="margin: 6pt 0cm 0pt; text-align: justify;"><span style="mso-bidi-font-size: 14.0pt;"><span style="font-family: Century Schoolbook; font-size: medium;">Ce patchwork procure une illusion d’optique&nbsp;: un fond blanc à côté d’un fond noir sur une même ligne donne une impression de déséquilibre et de manque de parallélisme. On s’étonne de cette bizarrerie. Tout est bien parallèle.</span></span></p><p style="margin: 6pt 0cm 0pt; text-align: center;" align="center"><span style="mso-bidi-font-size: 14.0pt;"><span style="font-family: Times New Roman; font-size: medium;"><img src="http://regardssurunevissansfin.hautetfort.com/media/02/01/2666572783.png" alt="" width="600" height="593" /></span></span></p> Fiso http://2yeux2oreilles.hautetfort.com/about.html Jour 1 : Une image, des visions tag:2yeux2oreilles.hautetfort.com,2013-04-28:5057380 2013-04-28T20:40:33+02:00 2013-04-28T20:40:33+02:00 Au retour du déjeuner, la formatrice affiche une image. Que voyez-vous ?... <p>Au retour du déjeuner, la formatrice affiche une image. Que voyez-vous ?</p><p style="text-align: center;"><a href="http://2yeux2oreilles.hautetfort.com/media/02/01/1816537095.2.jpg" target="_blank"><img id="media-4079450" style="margin: 0.7em 0;" title="" src="http://2yeux2oreilles.hautetfort.com/media/02/01/484738598.2.jpg" alt="Vieille et jeune.jpg" /></a></p><p>Une jeune femme ... ou une vieille femme ?<br /><br /><br />Et là ?</p><p style="text-align: center;"><a href="http://2yeux2oreilles.hautetfort.com/media/02/01/2209020080.jpg" target="_blank"><img id="media-4079452" style="margin: 0.7em 0;" title="" src="http://2yeux2oreilles.hautetfort.com/media/02/01/836751045.jpg" alt="Canard ou lapin.jpg" /></a></p><p>Lapin ... ou canard ?</p><p>Quelles rélfexions vous viennent après cet exercice ? Quel est son but, d'après vous ? Et la "morale" de l'histoire ?</p><p>Et une dernière pour la route, ma préférée, qu'on voit souvent dans les pubs irlandais :</p><p>Avant 6 bières :</p><p style="text-align: center;"><a href="http://2yeux2oreilles.hautetfort.com/media/02/02/21651840.jpg" target="_blank"><img id="media-4079473" style="margin: 0.7em 0;" title="" src="http://2yeux2oreilles.hautetfort.com/media/02/02/2664235903.jpg" alt="communication, " /></a></p><p>Après 6 bières :</p><p style="text-align: center;"><a href="http://2yeux2oreilles.hautetfort.com/media/02/01/1619210459.jpg" target="_blank"><img id="media-4079475" style="margin: 0.7em 0;" title="" src="http://2yeux2oreilles.hautetfort.com/media/02/01/2186689734.jpg" alt="communication, " /></a></p> Olivier Leguay http://www.inclassablesmathematiques.fr/about.html Illusions d'optique tag:www.inclassablesmathematiques.fr,2008-02-11:1459519 2008-02-11T15:25:00+01:00 2008-02-11T15:25:00+01:00 Impossible d'embarquer le lecteur de document dans cette note, alors vous... Impossible d'embarquer le lecteur de document dans cette note, alors vous n'aurez que le lien <a target="_blank" href="http://issuu.com/viewer?mode=embed&amp;documentId=080207111428-b427509acc1a427f8ee196c03d06c894&amp;layout=grey?44,5">ICI</a>&nbsp;et une image fixe ! joguess http://lefetard.hautetfort.com/about.html Illusion d'optique tag:lefetard.hautetfort.com,2007-12-18:1370477 2007-12-18T09:45:00+01:00 2007-12-18T09:45:00+01:00 <div style="text-align: left"><img src="http://lefetard.hautetfort.com/media/02/00/26552221fedf51e61c5ce8228d6c5177.gif" id="media-727148" alt="26552221fedf51e61c5ce8228d6c5177.gif" style="border-width: 0pt; margin: 0.7em 0pt" /> <div style="text-align: left"><img src="http://lefetard.hautetfort.com/media/00/01/bbfebbe6d25c56073a634b1626a819f7.gif" id="media-727149" alt="bbfebbe6d25c56073a634b1626a819f7.gif" style="border-width: 0pt; margin: 0.7em 0pt" /> <div style="text-align: left"><img src="http://lefetard.hautetfort.com/media/01/02/10e2a608f84f11bcc6910a58f7a2b98d.gif" id="media-727150" alt="10e2a608f84f11bcc6910a58f7a2b98d.gif" style="border-width: 0pt; margin: 0.7em 0pt" /> <div style="text-align: left"><img src="http://lefetard.hautetfort.com/media/02/00/6748faeff93a23f6741bdab8cbcdc97f.jpg" id="media-727151" alt="6748faeff93a23f6741bdab8cbcdc97f.jpg" style="border-width: 0pt; margin: 0.7em 0pt" /> <div style="text-align: left"><img src="http://lefetard.hautetfort.com/media/02/00/d089187bd67db9331e74a1901cfbdf54.gif" id="media-727153" alt="d089187bd67db9331e74a1901cfbdf54.gif" style="border-width: 0pt; margin: 0.7em 0pt" /> <div style="text-align: left"><img src="http://lefetard.hautetfort.com/media/02/00/7835bb0c56eff406dba43e6e9c26f447.jpg" id="media-727155" alt="7835bb0c56eff406dba43e6e9c26f447.jpg" style="border-width: 0pt; margin: 0.7em 0pt" /></div> </div> </div> </div> </div> </div> joguess http://lefetard.hautetfort.com/about.html Tricks tag:lefetard.hautetfort.com,2007-12-18:1370444 2007-12-18T09:27:48+01:00 2007-12-18T09:27:48+01:00 Amazing Lighter Trick 2 - Variations <embed src="http://www.metacafe.com/fplayer/903732/amazing_lighter_trick_2_variations.swf" wmode="transparent" pluginspage="http://www.macromedia.com/go/getflashplayer" type="application/x-shockwave-flash" height="345" width="400" /><br /> <font size="1"><a href="http://www.metacafe.com/watch/903732/amazing_lighter_trick_2_variations/">Amazing Lighter Trick 2 - Variations</a></font> joguess http://lefetard.hautetfort.com/about.html Illusion d'optique tag:lefetard.hautetfort.com,2007-12-18:1370440 2007-12-18T09:25:47+01:00 2007-12-18T09:25:47+01:00 <embed src="http://www.metacafe.com/fplayer/640773/scary_house_illusion.swf" wmode="transparent" pluginspage="http://www.macromedia.com/go/getflashplayer" type="application/x-shockwave-flash" height="345" width="400" /><br /> joguess http://lefetard.hautetfort.com/about.html Illusion d'optique tag:lefetard.hautetfort.com,2007-12-18:1370389 2007-12-18T08:45:00+01:00 2007-12-18T08:45:00+01:00 Télécharger illusions d'optique.pps (clique droit enregistrez sous) &nbsp; <p><a href="http://lefetard.hautetfort.com/media/02/02/b29b8afc6f0c697219705113566cdb50.pps" title="media-727077" id="media-727077" name="media-727077">Télécharger illusions d'optique.pps (clique droit enregistrez sous)</a></p> <p>&nbsp;</p> Olivier Leguay http://www.inclassablesmathematiques.fr/about.html Le Cube - Non-cube tag:www.inclassablesmathematiques.fr,2007-06-04:1077034 2007-06-04T09:20:00+02:00 2007-06-04T09:20:00+02:00 Une belle vidéo trouvée par Le Coyotte : ICI Cool, Amazing Optical... <font color="#FF6600">Une belle vidéo trouvée par Le Coyotte :</font> <a target="_blank" href="http://www.apprendre-en-ligne.net/blog/index.php/2007/06/04/629-ceci-n-est-pas-un-cube">ICI</a><br /> <br /> <a href="http://www.coolopticalillusions.com">Cool, Amazing Optical Illusions!</a> Olivier Leguay http://www.inclassablesmathematiques.fr/about.html Illusions d'optique, jeux et énigmes tag:www.inclassablesmathematiques.fr,2007-04-06:830111 2007-04-06T16:05:00+02:00 2007-04-06T16:05:00+02:00 Une page très fournie de liens originaux par le blog : "Intégration sociale... <p><font color="#FF6600">Une page très fournie de liens originaux par le blog : "Intégration sociale par l'informatique" :</font> <a href="http://integrationinformatique.blogspot.com/2007/01/illusions-doptique-jeux-mathmatiques-et.html">ICI</a></p> <div style="text-align: center"><font color="#FF9900">Mon illusion préférée, cliquer dessus pour agrandir&nbsp;l'image :</font></div> <div style="text-align: center"></div> <div style="text-align: center"></div> <div style="text-align: center"><a href="http://www.jp-petit.com/Inclassable/illusion_optique2.htm"><img src="http://beverycool.hautetfort.com/images/medium_Illusion_optique.jpg" alt="medium_Illusion_optique.jpg" style="margin: 0.7em 0pt; border-width: 0pt" /></a><br /></div> <p align="justify"><font color="#FF9900">Un article du magazine <strong>Cerveau et Psycho d'Avril 2007</strong> est consacré à cette illusion d'optique baptisée "Serpents tournants" par son concepteur, le psychologue Akiyoshi Kitaoka, de l'Université Ritsumeikan à Tokyo. L'illusion de mouvement est accentuée quand on regarde l'image en vision périphérique. En fait,&nbsp;l'origine de cette illusion prioviendrait du fait que les neurones détecteurs de mouvement sont "piégés" par cette image et leur activation donne l'illusion du mouvement qui peut diminuer lorsque l'on regarde l'image fixement.</font></p> <p align="justify"><a target="_blank" href="http://www.journaldunet.com/science/attention-les-yeux-illusions/attention-les-yeux-illusions.shtml"><font color="#FF0000" style="background-color: #000000">20 illusions du même type</font></a></p> <p align="justify">&nbsp;<a target="_blank" href="http://www.michaelbach.de/ot/"><font color="#FF0000" style="background-color: #000000">71 phénomènes visuels et illusions d'optique</font></a></p> <p align="justify"><a target="_blank" href="http://www.youtube.com/watch?v=Y5J6_UO67c0&amp;feature=dir"><font color="#FF0000" style="background-color: #000000">En vidéo et en musique</font></a></p> Olivier Leguay http://www.inclassablesmathematiques.fr/about.html Illusions et images mathématiques tag:www.inclassablesmathematiques.fr,2007-01-14:828163 2007-01-14T21:55:00+01:00 2007-01-14T21:55:00+01:00 La liste d'illusions de Mathworld.Wolfram.com : ICI &nbsp; (... <div style="text-align: center"><font color="#FF6633"><img src="http://beverycool.hautetfort.com/images/thumb_NeckerCubeQuilt.jpg" alt="medium_NeckerCubeQuilt.jpg" style="margin: 0.7em 0px; border-width: 0px" /></font></div> <p><font color="#FF6633">La liste d'illusions de Mathworld.Wolfram.com :</font> <a href="http://mathworld.wolfram.com/topics/Illusions.html">ICI</a>&nbsp;<font color="#FF9933">( anglais )</font></p> <div style="text-align: center"><font color="#FF9933"><img src="http://beverycool.hautetfort.com/images/medium_rabbduck.gif" alt="medium_rabbduck.gif" style="margin: 0.7em 0px; border-width: 0px" /></font></div> <p><font color="#FF9933">Les images mathématiques :</font> <a href="http://mathworld.wolfram.com/topics/MathematicalImages.html">ICI</a><br /> <br /> <font color="#FF9933">&nbsp;</font></p> <div style="text-align: center"><font color="#FF9933"><img src="http://beverycool.hautetfort.com/images/medium_heartsur.jpg" alt="medium_heartsur.jpg" style="margin: 0.7em 0px; border-width: 0px" /></font></div> <p><font color="#FF9933">Surfaces éclairées :</font> <a href="http://translate.google.com/translate?sourceid=navclient&amp;hl=fr&amp;u=http%3a%2f%2fmathworld%2ewolfram%2ecom%2ftopics%2fMathematicalArt%2ehtml">ICI</a></p> Olivier Leguay http://www.inclassablesmathematiques.fr/about.html Femme jeune-vieille de Boring tag:www.inclassablesmathematiques.fr,2006-02-17:360877 2006-02-17T22:50:00+01:00 2006-02-17T22:50:00+01:00 &nbsp; &nbsp; &nbsp; <p>&nbsp;</p> <div style="text-align: center"><a target="_blank" href="http://beverycool.hautetfort.com/images/medium_17-02-2006_22-49-34_0022.jpg"><img src="http://beverycool.hautetfort.com/images/medium_17-02-2006_22-49-34_0022.2.jpg" alt="medium_17-02-2006_22-49-34_0022.jpg" style="margin: 0.7em 0pt; border-width: 0pt" /></a></div> <p>&nbsp;</p> <p>&nbsp;</p> Olivier Leguay http://www.inclassablesmathematiques.fr/about.html Illusion de perspective ascendante tag:www.inclassablesmathematiques.fr,2006-02-16:359474 2006-02-16T23:40:00+01:00 2006-02-16T23:40:00+01:00 <div style="text-align: center"> <div style="text-align: center"><a target="_blank" href="http://beverycool.hautetfort.com/images/medium_16-02-2006_23-19-52_0021.4.jpg"><img src="http://beverycool.hautetfort.com/images/medium_16-02-2006_23-19-52_0021.4.5.jpg" alt="medium_16-02-2006_23-19-52_0021.4.jpg" style="margin: 0.7em 0pt; border-width: 0pt" /></a></div> <br /></div> Olivier Leguay http://www.inclassablesmathematiques.fr/about.html L'illusion de Poggendorff tag:www.inclassablesmathematiques.fr,2006-02-14:356369 2006-02-14T18:30:00+01:00 2006-02-14T18:30:00+01:00 <div style="text-align: center"><a target="_blank" href="http://beverycool.hautetfort.com/images/medium_09-02-2006_21-20-51_0012.jpg"><img src="http://beverycool.hautetfort.com/images/medium_09-02-2006_21-20-51_0012.3.jpg" alt="medium_09-02-2006_21-20-51_0012.jpg" style="margin: 0.7em 0px; border-width: 0px" /></a></div>