{"id":31681,"date":"2026-06-04T09:00:00","date_gmt":"2026-06-04T09:00:00","guid":{"rendered":"https:\/\/cit.upc.edu\/portfolio-item\/el-cd6-de-la-upc-construeix-un-sistema-optic-pioner-per-al-telescopi-mes-gran-del-mon\/"},"modified":"2026-06-15T12:42:34","modified_gmt":"2026-06-15T12:42:34","slug":"the-upcs-cd6-completes-construction-of-a-pioneering-optical-system-for-the-worlds-largest-telescope","status":"publish","type":"portfolio","link":"https:\/\/cit.upc.edu\/en\/portfolio-item\/the-upcs-cd6-completes-construction-of-a-pioneering-optical-system-for-the-worlds-largest-telescope\/","title":{"rendered":"The UPC\u2019s CD6 completes construction of a pioneering optical system for the world\u2019s largest telescope"},"content":{"rendered":"\n

<\/span>

04\/06\/2026<\/p>
Project Header
no-repeat;left top;;
auto
20px

The UPC\\’s Centre for Sensors, Instruments and Systems Development (CD6) in Terrassa, alongside IDOM Engineering, has finalised the design and construction of the optical system that will calibrate the Extremely Large Telescope\u2019s (ELT) main mirror, with a 39-metre diameter. The ELT will be the world\u2019s largest ground-based optical and near-infrared telescope. It is currently under construction at an altitude of over 3,000 metres on Cerro Armazones in Chile\u2019s Atacama Desert.<\/h4>
Project Header
no-repeat;left top;;
auto
20px


The <\/span>Centre for Sensors, Instruments and Systems Development (CD6)<\/span><\/a> of the Universitat Polit\u00e8cnica de Catalunya – BarcelonaTech (UPC) has completed its contribution to the <\/span>Extremely Large Telescope (ELT)<\/span><\/a> construction project: the <\/span>design and manufacture of the optical system that will calibrate the telescope\u2019s primary mirror.<\/span><\/p>

Of the five mirrors that will make up the telescope, <\/span>the main mirror, known as M1, is the most technologically spectacular. It is a concave mirror with a diameter of 39.3 metres (the largest currently in existence) and a radius of curvature of 68.7 metres. As it is too large to be cast from a single piece of glass, it consists of individual hexagonal segments. Each segment is around 5 cm thick, measures 1.5 m across, weighs 250 kg and is separated from its neighbours by a mere 4 mm gap. Together, the structure comprises six sectors made up of 133 segments of varying shapes and functions. In total, 798 hexagonal segments will operate as a single mirror, capable of gathering tens of millions of times as much light as the human eye.<\/span><\/p>

The hexagonal segments must be perfectly aligned to maintain the shape of the primary mirror to an accuracy of two nanometres\u201410,000 times thinner than a human hair\u2014across its entire surface, allowing them to work together to form a perfect imaging system. To maintain the maximum efficiency of the telescope, two segments will be removed every day for cleaning and recoating.<\/span><\/p>

The telescope features almost 2,500 actuators to ensure that each segment is positioned correctly with nanometric accuracy. The actuators are monitored by two systems: an optical interferometer, called Local Coherencer, and a network of some 9,000 sensors installed in the segments.<\/span><\/p>

A critical instrument for the proper operation of the ELT, the Local Coherencer was awarded to IDOM, which led its development in collaboration with the CD6. Created by the CD6 and IDOM, and approved by <\/span>ESO<\/span><\/a> in an international competitive call for proposals, the solution is based on an <\/span>original optical concept that is a variant of the interferometer that the CD6 created for the Gran Telescopio Canarias 20 years ago. This non-contact metrology system offers a lightweight, compact and robust solution, enabling simultaneous measurements of position difference (piston) and two-axis tilt (tip and tilt) between a segment and its six immediate neighbours. It boasts an accuracy of under 300 nanometres within a range of \u00b1250 microns and operates while mounted on the telescope\u2019s segment manipulator at tilts of up to 15\u00b0. The instrument measures not only the height difference between two segments but also their relative tilts, all within a single device.<\/span><\/p>

The telescope structure keeps it stable under all conditions, including in high winds and during earthquakes. It consists of a horizontal azimuth structure supporting the telescope tube and a 50-metre-high vertical altitude structure housing two massive platforms for the five mirrors and other scientific instruments. The primary mirror rests at the bottom of this structure, while the secondary mirror hangs well above the top of the telescope tube. The remaining three mirrors are in the 10-metre central tower of the telescope tube, located at the centre of the main mirror\u2019s support structure.<\/span><\/p>

With different shapes, sizes and roles, the telescope\u2019s five mirrors are designed to work together seamlessly. This pioneering optical design will allow it to reveal the Universe in unprecedented detail. The M1 primary mirror will contain thousands of highly sophisticated components to collect light from the night sky and reflect it onto the secondary mirror. With a diameter of some 4 metres, the convex M2 mirror is the largest secondary mirror ever employed on a telescope; it will hang above M1 and reflect light towards M3, which will then transmit it to an adaptive flat mirror (M4) above it. This fourth mirror will adjust its surface shape a thousand times per second to correct distortions caused by atmospheric turbulence before sending the light to M5, a tiltable flat mirror that will stabilise the image and direct it to the ELT instruments.<\/span>The innovative system, which enabled UPC and IDOM to win an international tender process and file an international patent, has been delivered to ESO in Munich this May for validation and will subsequently be installed on the ELT in Chile.\u00a0<\/span><\/p>

The largest eye ever builtThe ELT is a groundbreaking visible and infrared light telescope that will become the world\u2019s largest eye on the sky, paving the way for a new generation of ground-based optical telescopes. With its unique five-mirror design and cutting-edge technology to correct atmospheric distortion, the ELT <\/span>will provide images 15 times sharper than those of the Hubble Space Telescope. It will enable deep exploration of the universe in great detail, leading to major breakthroughs in astrophysical knowledge.<\/span><\/p>

Extremely large telescopes are considered worldwide a top priority in ground-based astronomy. The ELT construction project was approved by the European Southern Observatory (ESO) in 2012 and is set to revolutionise modern astronomy. One of the telescope\u2019s goals is to detect and study Earth-like planets around other stars, and it could become <\/span>the first telescope to find evidence of life outside our solar system. The ELT <\/span>will also probe the furthest reaches of the cosmos, revealing the properties of the very earliest galaxies and the nature of the dark universe.<\/p>

The telescope and its internal structure are protected from the extreme environment of the Atacama Desert by a <\/span>giant dome 80 metres high and 88 metres in diameter\u2014roughly the size of a football pitch. The upper part of the dome will rotate to allow the telescope to point in any direction through its large observing slit.<\/span><\/p>

Once fully equipped with optics and scientific instruments, the telescope is estimated to weigh around 3,700 tonnes.<\/span><\/p>

As work on manufacturing and designing ELT components progresses steadily in Europe, the ELT is <\/span>scheduled to conduct its first scientific observations in September 2027, roughly half a year after the telescope\u2019s first technical light.<\/span><\/p>

Budget and Funding<\/h4>

The project is the result of collaboration between several leading European companies and research centres, including IDOM and the CD6 at UPC. The project will run for five and a half years.<\/span><\/p>
Main Text
no-repeat;left top;;
auto


\"LA

Technology<\/h5>

Digital transformation<\/a><\/p>
Tecnolog\u00eda
no-repeat;left top;;
auto
0px


Sector<\/h5>

Aeronautics<\/a><\/p>
Sector
no-repeat;left top;;
auto
0px


Topic<\/h5>

Optics and Photonics<\/a><\/p>
Tema
no-repeat;left top;;
auto
30px


You want to know more?<\/h5>
Contact Button
no-repeat;left top;;
auto
0px

\n Button<\/span><\/a>\n
\n Button<\/span><\/a>\n
no-repeat;left top;;
auto


Projectes Relacionats<\/h4>
Proyectos Relacionados
no-repeat;left top;;
auto

grid
date
DESC

<\/p>\n","protected":false},"excerpt":{"rendered":"

The UPC\u2019s Centre for Sensors, Instruments and Systems Development (CD6) in Terrassa, alongside IDOM Engineering, has finalised the design and construction of the optical system that will calibrate the Extremely Large Telescope\u2019s (ELT) main mirror, with a 39-metre diameter. The ELT will be the world\u2019s largest ground-based optical and near-infrared telescope. It is currently under construction at an altitude of over 3,000 metres on Cerro Armazones in Chile\u2019s Atacama Desert. <\/p>\n","protected":false},"author":5,"featured_media":31676,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"portfolio-types":[379,932],"class_list":["post-31681","portfolio","type-portfolio","status-publish","has-post-thumbnail","hentry","portfolio-types-aeronautica-en","portfolio-types-optica-y-fotonica-en"],"yoast_head":"\nEl CD6 de la UPC construeix un sistema \u00f2ptic pioner per al telescopi m\u00e9s gran del m\u00f3n - CIT UPC<\/title>\n<meta name=\"description\" content=\"El Centre de Desenvolupament, Instrumentaci\u00f3 i Sensors (CD6) de la UPC ha finalitzat amb l\u2019empresa IDOM el disseny i la construcci\u00f3 del sistema \u00f2ptic que s'utilitzar\u00e0 per calibrar el gran mirall principal, de 39 metres de di\u00e0metre, de l\u2019Extremely Large Telescope (ELT). Ser\u00e0 el telescopi terrestre \u00f2ptic i infraroig proper m\u00e9s gran del m\u00f3n i s\u2019est\u00e0 construint a m\u00e9s de 3.000 metres d\u2019al\u00e7ada, al cerro Armazones, al desert d'Atacama, a Xile.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/cit.upc.edu\/en\/portfolio-item\/the-upcs-cd6-completes-construction-of-a-pioneering-optical-system-for-the-worlds-largest-telescope\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"El CD6 de la UPC construeix un sistema \u00f2ptic pioner per al telescopi m\u00e9s gran del m\u00f3n - CIT UPC\" \/>\n<meta property=\"og:description\" content=\"El Centre de Desenvolupament, Instrumentaci\u00f3 i Sensors (CD6) de la UPC ha finalitzat amb l\u2019empresa IDOM el disseny i la construcci\u00f3 del sistema \u00f2ptic que s'utilitzar\u00e0 per calibrar el gran mirall principal, de 39 metres de di\u00e0metre, de l\u2019Extremely Large Telescope (ELT). Ser\u00e0 el telescopi terrestre \u00f2ptic i infraroig proper m\u00e9s gran del m\u00f3n i s\u2019est\u00e0 construint a m\u00e9s de 3.000 metres d\u2019al\u00e7ada, al cerro Armazones, al desert d'Atacama, a Xile.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/cit.upc.edu\/en\/portfolio-item\/the-upcs-cd6-completes-construction-of-a-pioneering-optical-system-for-the-worlds-largest-telescope\/\" \/>\n<meta property=\"og:site_name\" content=\"CIT UPC\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/cit.upc\" \/>\n<meta property=\"article:modified_time\" content=\"2026-06-15T12:42:34+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/cit.upc.edu\/wp-content\/uploads\/2026\/06\/LA-FARGA-.png\" \/>\n\t<meta property=\"og:image:width\" content=\"700\" \/>\n\t<meta property=\"og:image:height\" content=\"526\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:site\" content=\"@CIT_UPC\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"6 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/cit.upc.edu\\\/en\\\/portfolio-item\\\/the-upcs-cd6-completes-construction-of-a-pioneering-optical-system-for-the-worlds-largest-telescope\\\/\",\"url\":\"https:\\\/\\\/cit.upc.edu\\\/en\\\/portfolio-item\\\/the-upcs-cd6-completes-construction-of-a-pioneering-optical-system-for-the-worlds-largest-telescope\\\/\",\"name\":\"El CD6 de la UPC construeix un sistema \u00f2ptic pioner per al telescopi m\u00e9s gran del m\u00f3n - CIT UPC\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/cit.upc.edu\\\/es\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/cit.upc.edu\\\/en\\\/portfolio-item\\\/the-upcs-cd6-completes-construction-of-a-pioneering-optical-system-for-the-worlds-largest-telescope\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/cit.upc.edu\\\/en\\\/portfolio-item\\\/the-upcs-cd6-completes-construction-of-a-pioneering-optical-system-for-the-worlds-largest-telescope\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/cit.upc.edu\\\/wp-content\\\/uploads\\\/2026\\\/06\\\/LA-FARGA-.png\",\"datePublished\":\"2026-06-04T09:00:00+00:00\",\"dateModified\":\"2026-06-15T12:42:34+00:00\",\"description\":\"El Centre de Desenvolupament, Instrumentaci\u00f3 i Sensors (CD6) de la UPC ha finalitzat amb l\u2019empresa IDOM el disseny i la construcci\u00f3 del sistema \u00f2ptic que s'utilitzar\u00e0 per calibrar el gran mirall principal, de 39 metres de di\u00e0metre, de l\u2019Extremely Large Telescope (ELT). Ser\u00e0 el telescopi terrestre \u00f2ptic i infraroig proper m\u00e9s gran del m\u00f3n i s\u2019est\u00e0 construint a m\u00e9s de 3.000 metres d\u2019al\u00e7ada, al cerro Armazones, al desert d'Atacama, a Xile.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/cit.upc.edu\\\/en\\\/portfolio-item\\\/the-upcs-cd6-completes-construction-of-a-pioneering-optical-system-for-the-worlds-largest-telescope\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/cit.upc.edu\\\/en\\\/portfolio-item\\\/the-upcs-cd6-completes-construction-of-a-pioneering-optical-system-for-the-worlds-largest-telescope\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/cit.upc.edu\\\/en\\\/portfolio-item\\\/the-upcs-cd6-completes-construction-of-a-pioneering-optical-system-for-the-worlds-largest-telescope\\\/#primaryimage\",\"url\":\"https:\\\/\\\/cit.upc.edu\\\/wp-content\\\/uploads\\\/2026\\\/06\\\/LA-FARGA-.png\",\"contentUrl\":\"https:\\\/\\\/cit.upc.edu\\\/wp-content\\\/uploads\\\/2026\\\/06\\\/LA-FARGA-.png\",\"width\":700,\"height\":526,\"caption\":\"LA FARGA\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/cit.upc.edu\\\/en\\\/portfolio-item\\\/the-upcs-cd6-completes-construction-of-a-pioneering-optical-system-for-the-worlds-largest-telescope\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Cover page\",\"item\":\"https:\\\/\\\/cit.upc.edu\\\/en\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"The UPC\u2019s CD6 completes construction of a pioneering optical system for the world\u2019s largest telescope\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/cit.upc.edu\\\/es\\\/#website\",\"url\":\"https:\\\/\\\/cit.upc.edu\\\/es\\\/\",\"name\":\"CIT UPC\",\"description\":\"Centro de Innovaci\u00f3n y Tecnolog\u00eda\",\"publisher\":{\"@id\":\"https:\\\/\\\/cit.upc.edu\\\/es\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/cit.upc.edu\\\/es\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/cit.upc.edu\\\/es\\\/#organization\",\"name\":\"CIT UPC - UPC Technology Center\",\"url\":\"https:\\\/\\\/cit.upc.edu\\\/es\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/cit.upc.edu\\\/es\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/cit.upc.edu\\\/wp-content\\\/uploads\\\/2020\\\/04\\\/cropped-logo_positiu_horitzontal_2020_espanol.png\",\"contentUrl\":\"https:\\\/\\\/cit.upc.edu\\\/wp-content\\\/uploads\\\/2020\\\/04\\\/cropped-logo_positiu_horitzontal_2020_espanol.png\",\"width\":512,\"height\":512,\"caption\":\"CIT UPC - UPC Technology Center\"},\"image\":{\"@id\":\"https:\\\/\\\/cit.upc.edu\\\/es\\\/#\\\/schema\\\/logo\\\/image\\\/\"},\"sameAs\":[\"https:\\\/\\\/www.facebook.com\\\/cit.upc\",\"https:\\\/\\\/x.com\\\/CIT_UPC\",\"https:\\\/\\\/www.youtube.com\\\/user\\\/CITUPC\",\"https:\\\/\\\/www.flickr.com\\\/photos\\\/181927091@N08\",\"https:\\\/\\\/www.linkedin.com\\\/company\\\/cit-upc\\\/\",\"https:\\\/\\\/www.instagram.com\\\/cit_upc\\\/\"]}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"El CD6 de la UPC construeix un sistema \u00f2ptic pioner per al telescopi m\u00e9s gran del m\u00f3n - CIT UPC","description":"El Centre de Desenvolupament, Instrumentaci\u00f3 i Sensors (CD6) de la UPC ha finalitzat amb l\u2019empresa IDOM el disseny i la construcci\u00f3 del sistema \u00f2ptic que s'utilitzar\u00e0 per calibrar el gran mirall principal, de 39 metres de di\u00e0metre, de l\u2019Extremely Large Telescope (ELT). Ser\u00e0 el telescopi terrestre \u00f2ptic i infraroig proper m\u00e9s gran del m\u00f3n i s\u2019est\u00e0 construint a m\u00e9s de 3.000 metres d\u2019al\u00e7ada, al cerro Armazones, al desert d'Atacama, a Xile.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/cit.upc.edu\/en\/portfolio-item\/the-upcs-cd6-completes-construction-of-a-pioneering-optical-system-for-the-worlds-largest-telescope\/","og_locale":"en_US","og_type":"article","og_title":"El CD6 de la UPC construeix un sistema \u00f2ptic pioner per al telescopi m\u00e9s gran del m\u00f3n - CIT UPC","og_description":"El Centre de Desenvolupament, Instrumentaci\u00f3 i Sensors (CD6) de la UPC ha finalitzat amb l\u2019empresa IDOM el disseny i la construcci\u00f3 del sistema \u00f2ptic que s'utilitzar\u00e0 per calibrar el gran mirall principal, de 39 metres de di\u00e0metre, de l\u2019Extremely Large Telescope (ELT). Ser\u00e0 el telescopi terrestre \u00f2ptic i infraroig proper m\u00e9s gran del m\u00f3n i s\u2019est\u00e0 construint a m\u00e9s de 3.000 metres d\u2019al\u00e7ada, al cerro Armazones, al desert d'Atacama, a Xile.","og_url":"https:\/\/cit.upc.edu\/en\/portfolio-item\/the-upcs-cd6-completes-construction-of-a-pioneering-optical-system-for-the-worlds-largest-telescope\/","og_site_name":"CIT UPC","article_publisher":"https:\/\/www.facebook.com\/cit.upc","article_modified_time":"2026-06-15T12:42:34+00:00","og_image":[{"width":700,"height":526,"url":"https:\/\/cit.upc.edu\/wp-content\/uploads\/2026\/06\/LA-FARGA-.png","type":"image\/png"}],"twitter_card":"summary_large_image","twitter_site":"@CIT_UPC","twitter_misc":{"Est. reading time":"6 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/cit.upc.edu\/en\/portfolio-item\/the-upcs-cd6-completes-construction-of-a-pioneering-optical-system-for-the-worlds-largest-telescope\/","url":"https:\/\/cit.upc.edu\/en\/portfolio-item\/the-upcs-cd6-completes-construction-of-a-pioneering-optical-system-for-the-worlds-largest-telescope\/","name":"El CD6 de la UPC construeix un sistema \u00f2ptic pioner per al telescopi m\u00e9s gran del m\u00f3n - CIT UPC","isPartOf":{"@id":"https:\/\/cit.upc.edu\/es\/#website"},"primaryImageOfPage":{"@id":"https:\/\/cit.upc.edu\/en\/portfolio-item\/the-upcs-cd6-completes-construction-of-a-pioneering-optical-system-for-the-worlds-largest-telescope\/#primaryimage"},"image":{"@id":"https:\/\/cit.upc.edu\/en\/portfolio-item\/the-upcs-cd6-completes-construction-of-a-pioneering-optical-system-for-the-worlds-largest-telescope\/#primaryimage"},"thumbnailUrl":"https:\/\/cit.upc.edu\/wp-content\/uploads\/2026\/06\/LA-FARGA-.png","datePublished":"2026-06-04T09:00:00+00:00","dateModified":"2026-06-15T12:42:34+00:00","description":"El Centre de Desenvolupament, Instrumentaci\u00f3 i Sensors (CD6) de la UPC ha finalitzat amb l\u2019empresa IDOM el disseny i la construcci\u00f3 del sistema \u00f2ptic que s'utilitzar\u00e0 per calibrar el gran mirall principal, de 39 metres de di\u00e0metre, de l\u2019Extremely Large Telescope (ELT). Ser\u00e0 el telescopi terrestre \u00f2ptic i infraroig proper m\u00e9s gran del m\u00f3n i s\u2019est\u00e0 construint a m\u00e9s de 3.000 metres d\u2019al\u00e7ada, al cerro Armazones, al desert d'Atacama, a Xile.","breadcrumb":{"@id":"https:\/\/cit.upc.edu\/en\/portfolio-item\/the-upcs-cd6-completes-construction-of-a-pioneering-optical-system-for-the-worlds-largest-telescope\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/cit.upc.edu\/en\/portfolio-item\/the-upcs-cd6-completes-construction-of-a-pioneering-optical-system-for-the-worlds-largest-telescope\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/cit.upc.edu\/en\/portfolio-item\/the-upcs-cd6-completes-construction-of-a-pioneering-optical-system-for-the-worlds-largest-telescope\/#primaryimage","url":"https:\/\/cit.upc.edu\/wp-content\/uploads\/2026\/06\/LA-FARGA-.png","contentUrl":"https:\/\/cit.upc.edu\/wp-content\/uploads\/2026\/06\/LA-FARGA-.png","width":700,"height":526,"caption":"LA FARGA"},{"@type":"BreadcrumbList","@id":"https:\/\/cit.upc.edu\/en\/portfolio-item\/the-upcs-cd6-completes-construction-of-a-pioneering-optical-system-for-the-worlds-largest-telescope\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Cover page","item":"https:\/\/cit.upc.edu\/en\/"},{"@type":"ListItem","position":2,"name":"The UPC\u2019s CD6 completes construction of a pioneering optical system for the world\u2019s largest telescope"}]},{"@type":"WebSite","@id":"https:\/\/cit.upc.edu\/es\/#website","url":"https:\/\/cit.upc.edu\/es\/","name":"CIT UPC","description":"Centro de Innovaci\u00f3n y Tecnolog\u00eda","publisher":{"@id":"https:\/\/cit.upc.edu\/es\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/cit.upc.edu\/es\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/cit.upc.edu\/es\/#organization","name":"CIT UPC - UPC Technology Center","url":"https:\/\/cit.upc.edu\/es\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/cit.upc.edu\/es\/#\/schema\/logo\/image\/","url":"https:\/\/cit.upc.edu\/wp-content\/uploads\/2020\/04\/cropped-logo_positiu_horitzontal_2020_espanol.png","contentUrl":"https:\/\/cit.upc.edu\/wp-content\/uploads\/2020\/04\/cropped-logo_positiu_horitzontal_2020_espanol.png","width":512,"height":512,"caption":"CIT UPC - UPC Technology Center"},"image":{"@id":"https:\/\/cit.upc.edu\/es\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/cit.upc","https:\/\/x.com\/CIT_UPC","https:\/\/www.youtube.com\/user\/CITUPC","https:\/\/www.flickr.com\/photos\/181927091@N08","https:\/\/www.linkedin.com\/company\/cit-upc\/","https:\/\/www.instagram.com\/cit_upc\/"]}]}},"_links":{"self":[{"href":"https:\/\/cit.upc.edu\/en\/wp-json\/wp\/v2\/portfolio\/31681","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cit.upc.edu\/en\/wp-json\/wp\/v2\/portfolio"}],"about":[{"href":"https:\/\/cit.upc.edu\/en\/wp-json\/wp\/v2\/types\/portfolio"}],"author":[{"embeddable":true,"href":"https:\/\/cit.upc.edu\/en\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/cit.upc.edu\/en\/wp-json\/wp\/v2\/comments?post=31681"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cit.upc.edu\/en\/wp-json\/wp\/v2\/media\/31676"}],"wp:attachment":[{"href":"https:\/\/cit.upc.edu\/en\/wp-json\/wp\/v2\/media?parent=31681"}],"wp:term":[{"taxonomy":"portfolio-types","embeddable":true,"href":"https:\/\/cit.upc.edu\/en\/wp-json\/wp\/v2\/portfolio-types?post=31681"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}