{"id":736,"count":1,"description":"Marc Fran\u00e7ois Louis Secr\u00e9tan (1804-1867)<\/strong>\r\n\r\nSecr\u00e9tan was Professor of Astronomy in Lausanne when he went into partnership with No\u00ebl-Jean Lerebours, founder of the Lerebours company in 1845 and the company was renamed to include both partners. When Lerebours\u2019 successor, Nicolas Paymal Lerebours retired in 1855, the company continued as Secr\u00e9tan.\r\n\r\nMarc Fran\u00e7ois Louis Secr\u00e9tan was born in Lausanne on 17 May, 1804. He started his professional life as a lawyer and judge, as well as training at the Military School of Thun, when he met Prince Louis-Napoleon. His spare time had always been spent on mathematics and astronomy, and he eventually gave up the law to become Professor of Mathematics at the Academy of Lausanne. He moved to Paris when he joined Lerebours. He produced instruments for the Paris Observatory and collaborated with L\u00e9on Foucault to make silver mirrors accurate enough to use to measure the speed of light in 1862. Secr\u00e9tan was also involved in the production of daguerreotypes, an early form of photography. The company produced a wide range of scientific instruments including telescopes for private and professional use. The signatures on some of their products describe him as `Opticien de S.A.M. l\u2019Empereur`.\r\n\r\nIn 1829, he married Jeanne Louise Suzanne Mercier (1810-1851) and the couple had 8 children. Their eldest son died before his first birthday. Their second son, Auguste Charles Louis Secr\u00e9tan took over the company after his father\u2019s death, and it continued under different family members and the same name into the 20th<\/sup> century.","link":"https:\/\/stichtinghistorischemicroscopie.nl\/en\/category\/secretan-en\/","name":"SECRETAN","slug":"secretan-en","taxonomy":"category","parent":0,"meta":[],"acf":[],"yoast_head":"\nSECRETAN Archieven - Stichting voor Historische Microscopie<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/stichtinghistorischemicroscopie.nl\/en\/category\/secretan-en\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"SECRETAN Archieven - Stichting voor Historische Microscopie\" \/>\n<meta property=\"og:description\" content=\"Marc Fran\u00e7ois Louis Secr\u00e9tan (1804-1867) Secr\u00e9tan was Professor of Astronomy in Lausanne when he went into partnership with No\u00ebl-Jean Lerebours, founder of the Lerebours company in 1845 and the company was renamed to include both partners. When Lerebours\u2019 successor, Nicolas Paymal Lerebours retired in 1855, the company continued as Secr\u00e9tan. Marc Fran\u00e7ois Louis Secr\u00e9tan was born in Lausanne on 17 May, 1804. He started his professional life as a lawyer and judge, as well as training at the Military School of Thun, when he met Prince Louis-Napoleon. His spare time had always been spent on mathematics and astronomy, and he eventually gave up the law to become Professor of Mathematics at the Academy of Lausanne. He moved to Paris when he joined Lerebours. He produced instruments for the Paris Observatory and collaborated with L\u00e9on Foucault to make silver mirrors accurate enough to use to measure the speed of light in 1862. Secr\u00e9tan was also involved in the production of daguerreotypes, an early form of photography. The company produced a wide range of scientific instruments including telescopes for private and professional use. The signatures on some of their products describe him as `Opticien de S.A.M. l\u2019Empereur`. In 1829, he married Jeanne Louise Suzanne Mercier (1810-1851) and the couple had 8 children. Their eldest son died before his first birthday. Their second son, Auguste Charles Louis Secr\u00e9tan took over the company after his father\u2019s death, and it continued under different family members and the same name into the 20th century.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/stichtinghistorischemicroscopie.nl\/en\/category\/secretan-en\/\" \/>\n<meta property=\"og:site_name\" content=\"Stichting voor Historische Microscopie\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"CollectionPage\",\"@id\":\"https:\/\/stichtinghistorischemicroscopie.nl\/en\/category\/secretan-en\/\",\"url\":\"https:\/\/stichtinghistorischemicroscopie.nl\/en\/category\/secretan-en\/\",\"name\":\"SECRETAN Archieven - Stichting voor Historische Microscopie\",\"isPartOf\":{\"@id\":\"https:\/\/stichtinghistorischemicroscopie.nl\/#website\"},\"breadcrumb\":{\"@id\":\"https:\/\/stichtinghistorischemicroscopie.nl\/en\/category\/secretan-en\/#breadcrumb\"},\"inLanguage\":\"en-US\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/stichtinghistorischemicroscopie.nl\/en\/category\/secretan-en\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/stichtinghistorischemicroscopie.nl\/en\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"SECRETAN\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/stichtinghistorischemicroscopie.nl\/#website\",\"url\":\"https:\/\/stichtinghistorischemicroscopie.nl\/\",\"name\":\"Stichting voor Historische Microscopie\",\"description\":\"\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/stichtinghistorischemicroscopie.nl\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"SECRETAN Archieven - Stichting voor Historische Microscopie","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:\/\/stichtinghistorischemicroscopie.nl\/en\/category\/secretan-en\/","og_locale":"en_US","og_type":"article","og_title":"SECRETAN Archieven - Stichting voor Historische Microscopie","og_description":"Marc Fran\u00e7ois Louis Secr\u00e9tan (1804-1867) Secr\u00e9tan was Professor of Astronomy in Lausanne when he went into partnership with No\u00ebl-Jean Lerebours, founder of the Lerebours company in 1845 and the company was renamed to include both partners. When Lerebours\u2019 successor, Nicolas Paymal Lerebours retired in 1855, the company continued as Secr\u00e9tan. Marc Fran\u00e7ois Louis Secr\u00e9tan was born in Lausanne on 17 May, 1804. He started his professional life as a lawyer and judge, as well as training at the Military School of Thun, when he met Prince Louis-Napoleon. His spare time had always been spent on mathematics and astronomy, and he eventually gave up the law to become Professor of Mathematics at the Academy of Lausanne. He moved to Paris when he joined Lerebours. He produced instruments for the Paris Observatory and collaborated with L\u00e9on Foucault to make silver mirrors accurate enough to use to measure the speed of light in 1862. Secr\u00e9tan was also involved in the production of daguerreotypes, an early form of photography. The company produced a wide range of scientific instruments including telescopes for private and professional use. The signatures on some of their products describe him as `Opticien de S.A.M. l\u2019Empereur`. In 1829, he married Jeanne Louise Suzanne Mercier (1810-1851) and the couple had 8 children. Their eldest son died before his first birthday. Their second son, Auguste Charles Louis Secr\u00e9tan took over the company after his father\u2019s death, and it continued under different family members and the same name into the 20th century.","og_url":"https:\/\/stichtinghistorischemicroscopie.nl\/en\/category\/secretan-en\/","og_site_name":"Stichting voor Historische Microscopie","twitter_card":"summary_large_image","schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"CollectionPage","@id":"https:\/\/stichtinghistorischemicroscopie.nl\/en\/category\/secretan-en\/","url":"https:\/\/stichtinghistorischemicroscopie.nl\/en\/category\/secretan-en\/","name":"SECRETAN Archieven - Stichting voor Historische Microscopie","isPartOf":{"@id":"https:\/\/stichtinghistorischemicroscopie.nl\/#website"},"breadcrumb":{"@id":"https:\/\/stichtinghistorischemicroscopie.nl\/en\/category\/secretan-en\/#breadcrumb"},"inLanguage":"en-US"},{"@type":"BreadcrumbList","@id":"https:\/\/stichtinghistorischemicroscopie.nl\/en\/category\/secretan-en\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/stichtinghistorischemicroscopie.nl\/en\/"},{"@type":"ListItem","position":2,"name":"SECRETAN"}]},{"@type":"WebSite","@id":"https:\/\/stichtinghistorischemicroscopie.nl\/#website","url":"https:\/\/stichtinghistorischemicroscopie.nl\/","name":"Stichting voor Historische Microscopie","description":"","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/stichtinghistorischemicroscopie.nl\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"}]}},"_links":{"self":[{"href":"https:\/\/stichtinghistorischemicroscopie.nl\/en\/wp-json\/wp\/v2\/categories\/736","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/stichtinghistorischemicroscopie.nl\/en\/wp-json\/wp\/v2\/categories"}],"about":[{"href":"https:\/\/stichtinghistorischemicroscopie.nl\/en\/wp-json\/wp\/v2\/taxonomies\/category"}],"wp:post_type":[{"href":"https:\/\/stichtinghistorischemicroscopie.nl\/en\/wp-json\/wp\/v2\/posts?categories=736"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}