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Vincent Chevalier
Vincent Chevalier (1770 - 1841) was a French engineer, inventor and optician. Biography He was born in 1770 in Paris, France. He played a key role in the history of the camera. The very first photograph was taken in 1825 by Joseph Nicéphore Niépce, a French inventor who used a sliding wooden camera box made by Chevalier. He died in 1841 in Paris, France. His son became a manufacturer of cameras and lenses. Legacy Chevalier was the first to develop a microscope to use a combination of lens elements corrected for chromatic aberrations. The sophisticated compound lenses manufactured by Chevalier were described as the "cutting-edge technological craftsmanship of the day". See also * History of the camera * Heliography Heliography is an early photographic process, based on the hardening of bitumen in sunlight. It was invented by Nicéphore Niépce around 1822. Niépce used the process to make the earliest known surviving photograph from nature, '' View from ... ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paris
Paris () is the Capital city, capital and List of communes in France with over 20,000 inhabitants, largest city of France. With an estimated population of 2,048,472 residents in January 2025 in an area of more than , Paris is the List of cities in the European Union by population within city limits, fourth-most populous city in the European Union and the List of cities proper by population density, 30th most densely populated city in the world in 2022. Since the 17th century, Paris has been one of the world's major centres of finance, diplomacy, commerce, culture, Fashion capital, fashion, and gastronomy. Because of its leading role in the French art, arts and Science and technology in France, sciences and its early adoption of extensive street lighting, Paris became known as the City of Light in the 19th century. The City of Paris is the centre of the Île-de-France region, or Paris Region, with an official estimated population of 12,271,794 inhabitants in January 2023, or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
France
France, officially the French Republic, is a country located primarily in Western Europe. Overseas France, Its overseas regions and territories include French Guiana in South America, Saint Pierre and Miquelon in the Atlantic Ocean#North Atlantic, North Atlantic, the French West Indies, and List of islands of France, many islands in Oceania and the Indian Ocean, giving it Exclusive economic zone of France, one of the largest discontiguous exclusive economic zones in the world. Metropolitan France shares borders with Belgium and Luxembourg to the north; Germany to the northeast; Switzerland to the east; Italy and Monaco to the southeast; Andorra and Spain to the south; and a maritime border with the United Kingdom to the northwest. Its metropolitan area extends from the Rhine to the Atlantic Ocean and from the Mediterranean Sea to the English Channel and the North Sea. Its Regions of France, eighteen integral regions—five of which are overseas—span a combined area of and hav ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Optician
An optician is an individual who fits glasses or contact lenses by filling a refractive prescription from an optometrist or ophthalmologist. They are able to translate and adapt ophthalmic prescriptions, dispense products, and work with accessories. There are several specialties within the field. Types Dispensing optician or ophthalmic dispenser A dispensing optician is anyone who prepares, fits, and dispenses prescription lenses, spectacles, glasses, contact lenses, or any other type of vision-correcting optical device to the intended user. They may interpret optical prescriptions issued by an ophthalmologist, optometrist, or physician for the lab optician who fabricates vision-correcting optical lenses. They also measure inter-ocular or pupillary distances, vertex distances, pupil fitting heights, and frame angles to determine the proper position of vision-correcting lenses. In addition, they adapt, modify, or align frames with vision-correcting lenses to the face of th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
History Of The Camera
The history of the camera began even before the introduction of photography. Cameras evolved from the ''camera obscura'' through many generations of photographic technologydaguerreotypes, calotypes, dry plates, photographic film, filmto the modern day with digital cameras and camera phones. ''Camera obscura'' (pre-17th century) The ''camera obscura'' (from the Latin for 'dark room') is a natural optical phenomenon and precursor of the photographic camera. It projects an inverted image (flipped left to right and upside down) of a scene from the other side of a screen or wall through a small aperture onto a surface opposite the opening. The earliest documented explanation of this principle comes from Chinese philosopher Mozi (), who correctly argued that the inversion of the camera obscura image is a result of light traveling in straight lines from its source. From around 1550, lenses were used in the openings of walls or closed window shutters in dark rooms to project images, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Joseph Nicéphore Niépce
Joseph is a common male name, derived from the Hebrew (). "Joseph" is used, along with " Josef", mostly in English, French and partially German languages. This spelling is also found as a variant in the languages of the modern-day Nordic countries. In Portuguese and Spanish, the name is "José". In Arabic, including in the Quran, the name is spelled , . In Kurdish (''Kurdî''), the name is , Persian, the name is , and in Turkish it is . In Pashto the name is spelled ''Esaf'' (ايسپ) and in Malayalam it is spelled ''Ousep'' (ഔസേപ്പ്). In Tamil, it is spelled as ''Yosepu'' (யோசேப்பு). The name has enjoyed significant popularity in its many forms in numerous countries, and ''Joseph'' was one of the two names, along with ''Robert'', to have remained in the top 10 boys' names list in the US from 1925 to 1972. It is especially common in contemporary Israel, as either "Yossi" or "Yossef", and in Italy, where the name "Giuseppe" was the most common ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
History Of The Camera
The history of the camera began even before the introduction of photography. Cameras evolved from the ''camera obscura'' through many generations of photographic technologydaguerreotypes, calotypes, dry plates, photographic film, filmto the modern day with digital cameras and camera phones. ''Camera obscura'' (pre-17th century) The ''camera obscura'' (from the Latin for 'dark room') is a natural optical phenomenon and precursor of the photographic camera. It projects an inverted image (flipped left to right and upside down) of a scene from the other side of a screen or wall through a small aperture onto a surface opposite the opening. The earliest documented explanation of this principle comes from Chinese philosopher Mozi (), who correctly argued that the inversion of the camera obscura image is a result of light traveling in straight lines from its source. From around 1550, lenses were used in the openings of walls or closed window shutters in dark rooms to project images, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heliography
Heliography is an early photographic process, based on the hardening of bitumen in sunlight. It was invented by Nicéphore Niépce around 1822. Niépce used the process to make the earliest known surviving photograph from nature, '' View from the Window at Le Gras'' (1826 or 1827), and the first realisation of photoresist as means to reproduce artworks through inventions of photolithography and photogravure. Invention Nicéphore Niépce began experiments with the aim of achieving a photo-etched printmaking technique in 1811. He knew that the acid-resistant Bitumen of Judea used in etching hardened with exposure to light. In experiments he coated it on plates of glass, zinc, copper and silver-surfaced copper, pewter and limestone (lithography), and found the surface exposed to the most light resisted dissolution in oil of lavender and petroleum, so that the uncoated shadow areas might be traditionally treated through acid etching and aquatint to print black ink. By 182 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
19th-century French Inventors
The 19th century began on 1 January 1801 (represented by the Roman numerals MDCCCI), and ended on 31 December 1900 (MCM). It was the 9th century of the 2nd millennium. It was characterized by vast social upheaval. Slavery was Abolitionism, abolished in much of Europe and the Americas. The First Industrial Revolution, though it began in the late 18th century, expanded beyond its British homeland for the first time during the 19th century, particularly remaking the economies and societies of the Low Countries, France, the Rhineland, Northern Italy, and the Northeastern United States. A few decades later, the Second Industrial Revolution led to ever more massive urbanization and much higher levels of productivity, profit, and prosperity, a pattern that continued into the 20th century. The Catholic Church, in response to the growing influence and power of modernism, secularism and materialism, formed the First Vatican Council in the late 19th century to deal with such problems an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
French Engineers
French may refer to: * Something of, from, or related to France ** French language, which originated in France ** French people, a nation and ethnic group ** French cuisine, cooking traditions and practices Arts and media * The French (band), a British rock band * "French" (episode), a live-action episode of ''The Super Mario Bros. Super Show!'' * ''Française'' (film), a 2008 film * French Stewart (born 1964), American actor Other uses * French (surname), a surname (including a list of people with the name) * French (tunic), a type of military jacket or tunic * French's, an American brand of mustard condiment * French (catheter scale), a unit of measurement * French Defence, a chess opening * French kiss, a type of kiss See also * France (other) * Franch, a surname * French Revolution (other) * French River (other), several rivers and other places * Frenching (other) Frenching may refer to: * Frenching (automobile), recessing or mou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1770 Births
Events January– March * January 1 – The foundation of Fort George, Bombay is laid by Colonel Keating, principal engineer, on the site of the former Dongri Fort. * February 1 – Thomas Jefferson's home at Shadwell, Virginia is destroyed by fire, along with most of his books. * February 14 – Scottish explorer James Bruce arrives at Gondar, capital of Abyssinia (modern-day Ethiopia) and is received by the Emperor Tekle Haymanot II and Ras Mikael Sehul. * February 22 – Christopher Seider, an 11-year-old boy in Boston in the British Province of Massachusetts Bay, is shot and killed by a colonial official, Ebenezer Richardson. The funeral sets off anti-British protests that lead to the massacre days later. * March 5 – Boston Massacre: Eleven American men are shot (five fatally) by British troops, in an event that helps start the American Revolutionary War five years later. * March 21 – King Prithvi Narayan Shah shifts ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
