{"id":75594,"date":"2019-12-20T16:22:49","date_gmt":"2019-12-20T14:22:49","guid":{"rendered":"https:\/\/www.lasit.it\/?p=75594"},"modified":"2024-03-15T12:21:07","modified_gmt":"2024-03-15T10:21:07","slug":"laser-marking-telecentric-lens","status":"publish","type":"post","link":"https:\/\/www.lasitlaser.com\/laser-marking-telecentric-lens\/","title":{"rendered":"Telecentric is much better for high end application. Why?"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"75594\" class=\"elementor elementor-75594 elementor-74998\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-38ebda63 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"38ebda63\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-25 elementor-top-column elementor-element elementor-element-373988ea\" data-id=\"373988ea\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-447125d9 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"447125d9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-9300366\" data-id=\"9300366\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-c6de1d elementor-widget elementor-widget-heading\" data-id=\"c6de1d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">Laser Marking: telecentric lens for high end application <br><\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-25 elementor-top-column elementor-element elementor-element-4f3c91da\" data-id=\"4f3c91da\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-4f5c0d43 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"4f5c0d43\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-284d380d elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"284d380d\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-wide\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-c104880\" data-id=\"c104880\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-519504a1 elementor-widget elementor-widget-heading\" data-id=\"519504a1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Lens differences<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4cd3b9c4 elementor-widget elementor-widget-text-editor\" data-id=\"4cd3b9c4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<strong>What is the difference between a standard lens and a telecentric one?<\/strong>\n\nThe angle between the laser beam and marking surface changes.\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-684c43d7 elementor-align-start elementor-icon-list--layout-traditional elementor-list-item-link-full_width elementor-widget elementor-widget-icon-list\" data-id=\"684c43d7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"icon-list.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<ul class=\"elementor-icon-list-items\">\n\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-angle-right\" viewBox=\"0 0 256 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M224.3 273l-136 136c-9.4 9.4-24.6 9.4-33.9 0l-22.6-22.6c-9.4-9.4-9.4-24.6 0-33.9l96.4-96.4-96.4-96.4c-9.4-9.4-9.4-24.6 0-33.9L54.3 103c9.4-9.4 24.6-9.4 33.9 0l136 136c9.5 9.4 9.5 24.6.1 34z\"><\/path><\/svg>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">With the standard lens, the angle goes from 90\u00b0 at the center of the marking field to 60\u00b0 in the end of the marking field.<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-angle-right\" viewBox=\"0 0 256 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M224.3 273l-136 136c-9.4 9.4-24.6 9.4-33.9 0l-22.6-22.6c-9.4-9.4-9.4-24.6 0-33.9l96.4-96.4-96.4-96.4c-9.4-9.4-9.4-24.6 0-33.9L54.3 103c9.4-9.4 24.6-9.4 33.9 0l136 136c9.5 9.4 9.5 24.6.1 34z\"><\/path><\/svg>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">With the telecentric lens, the laser beam is always perpendicular to the marking surface.<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t<\/ul>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-3a5dcec3\" data-id=\"3a5dcec3\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-3ca55973 elementor-widget elementor-widget-image\" data-id=\"3ca55973\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img  title=\"\" fetchpriority=\"high\" decoding=\"async\" width=\"726\" height=\"489\" src=\"https:\/\/www.lasitlaser.com\/wp-content\/uploads\/2019\/12\/DifferenzaLenti-44.jpg\" class=\"attachment-large size-large wp-image-68776\"  alt=\"DifferenzaLenti-44 Telecentric is much better for high end application. Why?\"  srcset=\"https:\/\/www.lasitlaser.com\/wp-content\/uploads\/2019\/12\/DifferenzaLenti-44.jpg 726w, https:\/\/www.lasitlaser.com\/wp-content\/uploads\/2019\/12\/DifferenzaLenti-44-300x202.jpg 300w, https:\/\/www.lasitlaser.com\/wp-content\/uploads\/2019\/12\/DifferenzaLenti-44-65x44.jpg 65w, https:\/\/www.lasitlaser.com\/wp-content\/uploads\/2019\/12\/DifferenzaLenti-44-278x187.jpg 278w\" sizes=\"(max-width: 726px) 100vw, 726px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-643b52f0 elementor-reverse-mobile elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"643b52f0\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-wide\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-3740dbc0\" data-id=\"3740dbc0\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-17b9d099 elementor-widget elementor-widget-image\" data-id=\"17b9d099\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img  title=\"\" decoding=\"async\" width=\"800\" height=\"616\" src=\"https:\/\/www.lasitlaser.com\/wp-content\/uploads\/2019\/12\/Area-Marcatura-44.jpg\" class=\"attachment-large size-large wp-image-68771\"  alt=\"Area-Marcatura-44 Telecentric is much better for high end application. Why?\"  srcset=\"https:\/\/www.lasitlaser.com\/wp-content\/uploads\/2019\/12\/Area-Marcatura-44.jpg 919w, https:\/\/www.lasitlaser.com\/wp-content\/uploads\/2019\/12\/Area-Marcatura-44-300x231.jpg 300w, https:\/\/www.lasitlaser.com\/wp-content\/uploads\/2019\/12\/Area-Marcatura-44-65x50.jpg 65w, https:\/\/www.lasitlaser.com\/wp-content\/uploads\/2019\/12\/Area-Marcatura-44-768x592.jpg 768w, https:\/\/www.lasitlaser.com\/wp-content\/uploads\/2019\/12\/Area-Marcatura-44-243x187.jpg 243w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-34ede01\" data-id=\"34ede01\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-4ce4521c elementor-widget elementor-widget-heading\" data-id=\"4ce4521c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Marking Area<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-75f79d36 elementor-widget elementor-widget-text-editor\" data-id=\"75f79d36\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>The <strong>standard lens marking area is bigger than the physical size of the lens itself<\/strong>. As the laser beam is sloped, it is possible to obtain different marking fields simply by moving away from the lens. Each focal corresponds to a certain marking area, standard ones are \u00f8140, \u00f8220, \u00f8290, \u00f8420, \u00f8710.<\/p><p><br><\/p>\n<p>The <strong>telecentric lens marking area is equal to the lens diameter minus the diameter of the laser beam that goes through it<\/strong>. This laser beam is usually \u00f810mm or \u00f815mm.<\/p>\n<p>Bigger lenses are much more expensive, because the lens diameter has to be the same as the marking field.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-6dd8ad80 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"6dd8ad80\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-wide\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-26421367\" data-id=\"26421367\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-41710d40 elementor-widget elementor-widget-heading\" data-id=\"41710d40\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Homogeneous focusing<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-659f61cc elementor-widget elementor-widget-text-editor\" data-id=\"659f61cc\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>With the FFL lens, the shape and the dimension of the focus point changes, because the angle between the laser beam and the working bench changes its sizes from the center (where it is perpendicular) to the end.<\/p>\n<p>At the center, we will see a perfectly circular focus point and the spot will have a minimum diameter. At the end of the marking area, the shape is extended, considering the intersection between the cylinder and the surface at various angles. This variation determines a power variation.<\/p><p><br><\/p>\n<p>With the telecentric lens, the beam is always perpendicular, so the focus point is always circular and uniform on the entire surface. The power density is the same everywhere.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-502569d\" data-id=\"502569d\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-24f05c10 elementor-widget elementor-widget-image\" data-id=\"24f05c10\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img  title=\"\" decoding=\"async\" width=\"707\" height=\"487\" src=\"https:\/\/www.lasitlaser.com\/wp-content\/uploads\/2019\/12\/MessaFuocoOmogenea-44.jpg\" class=\"attachment-large size-large wp-image-68766\"  alt=\"MessaFuocoOmogenea-44 Telecentric is much better for high end application. Why?\"  srcset=\"https:\/\/www.lasitlaser.com\/wp-content\/uploads\/2019\/12\/MessaFuocoOmogenea-44.jpg 707w, https:\/\/www.lasitlaser.com\/wp-content\/uploads\/2019\/12\/MessaFuocoOmogenea-44-300x207.jpg 300w, https:\/\/www.lasitlaser.com\/wp-content\/uploads\/2019\/12\/MessaFuocoOmogenea-44-65x45.jpg 65w, https:\/\/www.lasitlaser.com\/wp-content\/uploads\/2019\/12\/MessaFuocoOmogenea-44-271x187.jpg 271w\" sizes=\"(max-width: 707px) 100vw, 707px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-3a363801 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"3a363801\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-extended\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-65ff3ffb\" data-id=\"65ff3ffb\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-603c383c elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"603c383c\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-1ee2ebde\" data-id=\"1ee2ebde\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-1590a07a elementor-widget elementor-widget-text-editor\" data-id=\"1590a07a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong>Did you like this article?<\/strong><br \/>Share it on<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-4faf12f1\" data-id=\"4faf12f1\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-6fd8194b elementor-share-buttons--view-icon elementor-share-buttons--shape-circle elementor-share-buttons--skin-gradient elementor-grid-0 elementor-share-buttons--color-official elementor-widget elementor-widget-share-buttons\" data-id=\"6fd8194b\" 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class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Laser Marking: telecentric lens for high end application Lens differences What is the difference between a standard lens and a telecentric one? The angle between the laser beam and marking surface changes. With the standard lens, the angle goes from 90\u00b0 at the center of the marking field to 60\u00b0 in the end of the [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":88005,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"elementor_header_footer","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[9252],"tags":[],"menu-item":[],"class_list":["post-75594","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-laser-applications"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.3 (Yoast SEO v27.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Telecentric lens vs standard lens | Laser marking systems | LASIT<\/title>\n<meta name=\"description\" content=\"Discover the differences between a telecentric lens and a standard in laser marking for your applications.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.lasitlaser.com\/laser-marking-telecentric-lens\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Telecentric is much better for high end application. 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