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		<title>Innovation : comment imprimer deux images en un!</title>
		<link>http://www.francerecharge.fr/2015/12/24/innovation-comment-imprimer-deux-images-en-un/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=innovation-comment-imprimer-deux-images-en-un</link>
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		<pubDate>Thu, 24 Dec 2015 15:01:32 +0000</pubDate>
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				<category><![CDATA[Actualités]]></category>
		<category><![CDATA[impression demi-ton]]></category>
		<category><![CDATA[impression halftone]]></category>
		<category><![CDATA[impression révolutionnaire]]></category>
		<category><![CDATA[impression superposée]]></category>
		<category><![CDATA[imprimer deux images]]></category>

		<guid isPermaLink="false">http://www.francerecharge.fr/?p=1550</guid>
		<description><![CDATA[Alors que l&#8217;on pensait que l&#8217;impression jet d&#8217;encre ne pouvait plus surprendre grand monde, voici que des chercheurs ont trouvé une nouvelle manière d&#8217;imprimer qui va vous épater !! En effet, les têtes pensantes de l’École polytechnique fédérale de Lausanne &#8230; <a href="http://www.francerecharge.fr/2015/12/24/innovation-comment-imprimer-deux-images-en-un/">Lire la suite <span class="meta-nav">&#8594;</span></a>]]></description>
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			</div><div style="clear:both"></div><div style="padding-bottom:4px;"></div><p><a href="https://www.encros.fr" target="_blank"><img title="image1" style="float: none; margin-left: auto; display: block; margin-right: auto" alt="image1" src="http://www.francerecharge.fr/wp-content/uploads/image11.gif" width="438" height="219"></a>
<p>Alors que l&rsquo;on pensait <a href="https://www.encros.fr/recharge-encre" target="_blank">que l&rsquo;impression jet d&rsquo;encre</a><strong></strong> ne pouvait plus surprendre grand monde, voici que des chercheurs ont trouvé une nouvelle manière d&rsquo;imprimer qui va vous épater !!
<p>En effet, les têtes pensantes de l’École polytechnique fédérale de Lausanne ont décidé de bousculer les conventions en proposant une façon d&rsquo;imprimer assez originale. L&rsquo;équipe s&rsquo;était amusée à imprimer en demi-ton et alors qu&rsquo;elle expérimentait le résultat avec diverses couleurs, elle s&rsquo;est rendue compte compte qu&rsquo;en imprimant sur des feuilles métalliques, les couleurs se modifiaient dépendant de l&rsquo;angle où on les regardait.
<p>Selon les chercheurs, les lignes d&rsquo;encre étant perpendiculaires à la lumière créent une large ombre et apparaissent en tant que « couleurs fortes ». Les lignes d&rsquo;encre parallèles seront quant à elles des « couleurs faibles », du fait qu&rsquo;elles ne génèrent pas d&rsquo;ombre. Ainsi, lorsqu&rsquo;une photo imprimée de la sorte se voit retournée, les couleurs se voient modifiées, comme par magie. Néanmoins, ce procédé ne fonctionne pour le moment que sur des feuilles métalliques, les feuilles de papier conventionnelles ne mettant pas vraiment en valeur ce procédé.
<p><a href="https://www.encros.fr" target="_blank"><img title="image12" style="float: none; margin-left: auto; display: block; margin-right: auto" alt="image12" src="http://www.francerecharge.fr/wp-content/uploads/image121.gif" width="470" height="235"></a>
<p>Au lieu d&rsquo;en rire et de passer à autre chose, l&rsquo;équipe de chercheurs s&rsquo;est demandé comment faire pour utiliser ce procédé à bon escient. Résultat, ils ont décidé de créer un algorithme pour utiliser cette fois deux images superposées sur la même feuille, tout en utilisant <a href="https://www.encros.fr/recharge-encre" target="_blank">une simple imprimante jet d&rsquo;encre</a><strong></strong><strong> !</strong>
<p>Voila qui pourrait donner des idées à ceux cherchant des nouveaux systèmes de contrôle de sécurité pour par exemple les passeports ou autres cartes d&rsquo;identité. </p>
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