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- Alphonse_Louis_Poitevin abstract "Alphonse Louis Poitevin (Conflans-sur-Anille, 1819 – Conflans-sur-Anille, 1882) was a French chemist, photographer and civil engineer who discovered the light–sensitive properties of bichromated gelatin and invented both the photolithography and collotype processes.He has been described as \"one of the great unheralded figures in photography\". In the 1850s he discovered that gelatin in combination with either potassium or ammonium bichromate hardens in proportion to the amount of light that falls on it. This discovery, significant for its capacity to facilitate the mass production of photographs, was later used by numerous figures such as Josef Albert, Joseph Wilson Swan, Paul Pretsch and Charles Nègre to develop subsequent photographic printing processes such as heliogravure, photogravure, collotype, autotype and carbon print.".
- Alphonse_Louis_Poitevin birthDate "1819".
- Alphonse_Louis_Poitevin birthYear "1819".
- Alphonse_Louis_Poitevin deathDate "1882".
- Alphonse_Louis_Poitevin deathYear "1882".
- Alphonse_Louis_Poitevin thumbnail Alphonse_Poitevin.jpg?width=300.
- Alphonse_Louis_Poitevin wikiPageID "21282867".
- Alphonse_Louis_Poitevin wikiPageLength "1715".
- Alphonse_Louis_Poitevin wikiPageOutDegree "20".
- Alphonse_Louis_Poitevin wikiPageRevisionID "659637981".
- Alphonse_Louis_Poitevin wikiPageWikiLink Ammonium_dichromate.
- Alphonse_Louis_Poitevin wikiPageWikiLink Autotype.
- Alphonse_Louis_Poitevin wikiPageWikiLink Carbon_print.
- Alphonse_Louis_Poitevin wikiPageWikiLink Category:1819_births.
- Alphonse_Louis_Poitevin wikiPageWikiLink Category:1882_deaths.
- Alphonse_Louis_Poitevin wikiPageWikiLink Category:French_chemists.
- Alphonse_Louis_Poitevin wikiPageWikiLink Category:French_photographers.
- Alphonse_Louis_Poitevin wikiPageWikiLink Category:Pioneers_of_photography.
- Alphonse_Louis_Poitevin wikiPageWikiLink Charles_Nègre.
- Alphonse_Louis_Poitevin wikiPageWikiLink Collotype.
- Alphonse_Louis_Poitevin wikiPageWikiLink Conflans-sur-Anille.
- Alphonse_Louis_Poitevin wikiPageWikiLink Josef_Albert.
- Alphonse_Louis_Poitevin wikiPageWikiLink Joseph_Swan.
- Alphonse_Louis_Poitevin wikiPageWikiLink Paul_Pretsch.
- Alphonse_Louis_Poitevin wikiPageWikiLink Photogravure.
- Alphonse_Louis_Poitevin wikiPageWikiLink Photolithography.
- Alphonse_Louis_Poitevin wikiPageWikiLink Potassium.
- Alphonse_Louis_Poitevin wikiPageWikiLink File:Alphonse_Poitevin.jpg.
- Alphonse_Louis_Poitevin wikiPageWikiLinkText "Alphonse Louis Poitevin".
- Alphonse_Louis_Poitevin dateOfBirth "1819".
- Alphonse_Louis_Poitevin dateOfDeath "1882".
- Alphonse_Louis_Poitevin name "Poitevin, Alphonse Louis".
- Alphonse_Louis_Poitevin shortDescription "French chemist, photographer and engineer".
- Alphonse_Louis_Poitevin wikiPageUsesTemplate Template:Authority_control.
- Alphonse_Louis_Poitevin wikiPageUsesTemplate Template:Early_French_photographers.
- Alphonse_Louis_Poitevin wikiPageUsesTemplate Template:France-photographer-stub.
- Alphonse_Louis_Poitevin wikiPageUsesTemplate Template:Persondata.
- Alphonse_Louis_Poitevin wikiPageUsesTemplate Template:Reflist.
- Alphonse_Louis_Poitevin description "French chemist, photographer and engineer".
- Alphonse_Louis_Poitevin description "French chemist, photographer and engineer".
- Alphonse_Louis_Poitevin subject Category:1819_births.
- Alphonse_Louis_Poitevin subject Category:1882_deaths.
- Alphonse_Louis_Poitevin subject Category:French_chemists.
- Alphonse_Louis_Poitevin subject Category:French_photographers.
- Alphonse_Louis_Poitevin subject Category:Pioneers_of_photography.
- Alphonse_Louis_Poitevin hypernym Chemist.
- Alphonse_Louis_Poitevin type Agent.
- Alphonse_Louis_Poitevin type Artist.
- Alphonse_Louis_Poitevin type Person.
- Alphonse_Louis_Poitevin type Photographer.
- Alphonse_Louis_Poitevin type Scientist.
- Alphonse_Louis_Poitevin type Person.
- Alphonse_Louis_Poitevin type Artist.
- Alphonse_Louis_Poitevin type Photographer.
- Alphonse_Louis_Poitevin type Scientist.
- Alphonse_Louis_Poitevin type Agent.
- Alphonse_Louis_Poitevin type NaturalPerson.
- Alphonse_Louis_Poitevin type Thing.
- Alphonse_Louis_Poitevin type Q215627.
- Alphonse_Louis_Poitevin type Q5.
- Alphonse_Louis_Poitevin type Person.
- Alphonse_Louis_Poitevin comment "Alphonse Louis Poitevin (Conflans-sur-Anille, 1819 – Conflans-sur-Anille, 1882) was a French chemist, photographer and civil engineer who discovered the light–sensitive properties of bichromated gelatin and invented both the photolithography and collotype processes.He has been described as \"one of the great unheralded figures in photography\".".
- Alphonse_Louis_Poitevin label "Alphonse Louis Poitevin".
- Alphonse_Louis_Poitevin sameAs Q1356899.
- Alphonse_Louis_Poitevin sameAs Louis_Alphons_Poitevin.
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- Alphonse_Louis_Poitevin sameAs Alphonse_Poitevin.
- Alphonse_Louis_Poitevin sameAs Alphonse_Poitevin.
- Alphonse_Louis_Poitevin sameAs m.05f9hfy.
- Alphonse_Louis_Poitevin sameAs Alphonse_Poitevin.
- Alphonse_Louis_Poitevin sameAs Q1356899.
- Alphonse_Louis_Poitevin wasDerivedFrom Alphonse_Louis_Poitevin?oldid=659637981.
- Alphonse_Louis_Poitevin depiction Alphonse_Poitevin.jpg.
- Alphonse_Louis_Poitevin givenName "Alphonse Louis".
- Alphonse_Louis_Poitevin isPrimaryTopicOf Alphonse_Louis_Poitevin.
- Alphonse_Louis_Poitevin name "Alphonse Louis Poitevin".
- Alphonse_Louis_Poitevin name "Poitevin, Alphonse Louis".
- Alphonse_Louis_Poitevin surname "Poitevin".