{"aliases":[],"awards":[],"biography_summary":"Karl Wilhelm Andreas Strehl (April 30, 1864 \u2013 June 14, 1940) was a German physicist, mathematician, and writer. He is notable for the Strehl ratio, a widely used measurement for the optical quality of an imaging system.","birth_date":"1864-04-30","birth_place":"Bayreuth","birth_place_coordinates":{"latitude":49.948056,"longitude":11.578333},"birth_place_wikidata_id":"Q3923","birth_place_wikidata_url":"https://www.wikidata.org/wiki/Q3923","canonical_name":"Karl Strehl","canonical_url":"https://nl.instaget.online/people/8f43bc49788215343fe0716a","citizenships":["German Reich"],"death_date":"1940-06-14","description":"Duits fysicus en wiskundige","external_ids":{"isni":{"id":"0000000010185062","url":"https://isni.org/isni/0000000010185062"},"viaf":{"id":"50008969","url":"https://viaf.org/viaf/50008969/"}},"full_name":"Karl Strehl","height_cm":null,"names":{"aliases":["Karl Wilhelm Andreas Strehl"],"birth":[],"native":[],"official":[]},"native_name":null,"notable_works":[],"occupations":["physicist","mathematician"],"official_websites":[],"photo":null,"profile_url":"https://nl.instaget.online/people/8f43bc49788215343fe0716a","provenance":{"catalog":"wikidata_wikipedia","fetched_at":"2026-08-29T07:40:19Z","social_archives_included":false,"source_url":"https://www.wikidata.org/wiki/Q2173556"},"public_hash":"8f43bc49788215343fe0716a","schema_version":"1.1","socials":{},"tags":[{"key":"category:science-and-academia","label":"Science and academia","type":"category"},{"key":"occupation:physicist","label":"physicist","type":"occupation"},{"key":"occupation:mathematician","label":"mathematician","type":"occupation"},{"key":"country:bayreuth","label":"Bayreuth","type":"country"},{"key":"citizenship:german reich","label":"German Reich","type":"citizenship"}],"wikidata_id":"Q2173556","wikidata_url":"https://www.wikidata.org/wiki/Q2173556","wikipedia_url":"https://nl.wikipedia.org/wiki/Karl_Strehl"}