{"type":"standard","title":"Shack–Hartmann wavefront sensor","displaytitle":"Shack–Hartmann wavefront sensor","namespace":{"id":0,"text":""},"wikibase_item":"Q267928","titles":{"canonical":"Shack–Hartmann_wavefront_sensor","normalized":"Shack–Hartmann wavefront sensor","display":"Shack–Hartmann wavefront sensor"},"pageid":7066763,"thumbnail":{"source":"https://upload.wikimedia.org/wikipedia/commons/thumb/b/bd/Shack_hartmann.jpg/330px-Shack_hartmann.jpg","width":320,"height":193},"originalimage":{"source":"https://upload.wikimedia.org/wikipedia/commons/b/bd/Shack_hartmann.jpg","width":846,"height":510},"lang":"en","dir":"ltr","revision":"1280609664","tid":"c2eeae77-01a9-11f0-a1f9-25e0c52fca8d","timestamp":"2025-03-15T14:28:28Z","description":"Type of optical instrument","description_source":"local","content_urls":{"desktop":{"page":"https://en.wikipedia.org/wiki/Shack%E2%80%93Hartmann_wavefront_sensor","revisions":"https://en.wikipedia.org/wiki/Shack%E2%80%93Hartmann_wavefront_sensor?action=history","edit":"https://en.wikipedia.org/wiki/Shack%E2%80%93Hartmann_wavefront_sensor?action=edit","talk":"https://en.wikipedia.org/wiki/Talk:Shack%E2%80%93Hartmann_wavefront_sensor"},"mobile":{"page":"https://en.m.wikipedia.org/wiki/Shack%E2%80%93Hartmann_wavefront_sensor","revisions":"https://en.m.wikipedia.org/wiki/Special:History/Shack%E2%80%93Hartmann_wavefront_sensor","edit":"https://en.m.wikipedia.org/wiki/Shack%E2%80%93Hartmann_wavefront_sensor?action=edit","talk":"https://en.m.wikipedia.org/wiki/Talk:Shack%E2%80%93Hartmann_wavefront_sensor"}},"extract":"A Shack–Hartmann wavefront sensor (SHWFS) is an optical instrument used for characterizing an imaging system. It is a wavefront sensor commonly used in adaptive optics systems. It consists of an array of lenses of the same focal length. Each is focused onto a photon sensor. If the sensor is placed at the geometric focal plane of the lenslet, and is uniformly illuminated, then, the integrated gradient of the wavefront across the lenslet is proportional to the displacement of the centroid. Consequently, any phase aberration can be approximated by a set of discrete tilts. By sampling the wavefront with an array of lenslets, all of these local tilts can be measured and the whole wavefront reconstructed. Since only tilts are measured the Shack–Hartmann cannot detect discontinuous steps in the wavefront.","extract_html":"
A Shack–Hartmann wavefront sensor (SHWFS) is an optical instrument used for characterizing an imaging system. It is a wavefront sensor commonly used in adaptive optics systems. It consists of an array of lenses of the same focal length. Each is focused onto a photon sensor. If the sensor is placed at the geometric focal plane of the lenslet, and is uniformly illuminated, then, the integrated gradient of the wavefront across the lenslet is proportional to the displacement of the centroid. Consequently, any phase aberration can be approximated by a set of discrete tilts. By sampling the wavefront with an array of lenslets, all of these local tilts can be measured and the whole wavefront reconstructed. Since only tilts are measured the Shack–Hartmann cannot detect discontinuous steps in the wavefront.
"}{"type":"standard","title":"Pusztakovácsi","displaytitle":"Pusztakovácsi","namespace":{"id":0,"text":""},"wikibase_item":"Q1186037","titles":{"canonical":"Pusztakovácsi","normalized":"Pusztakovácsi","display":"Pusztakovácsi"},"pageid":11465623,"thumbnail":{"source":"https://upload.wikimedia.org/wikipedia/commons/thumb/b/b6/SomogyMegye.png/330px-SomogyMegye.png","width":320,"height":213},"originalimage":{"source":"https://upload.wikimedia.org/wikipedia/commons/b/b6/SomogyMegye.png","width":1123,"height":748},"lang":"en","dir":"ltr","revision":"1234483274","tid":"1ca66933-41fc-11ef-a8f5-bcaacd7d701e","timestamp":"2024-07-14T16:14:14Z","description":"Village in Southern Transdanubia, Hungary","description_source":"local","coordinates":{"lat":46.54501,"lon":17.57242},"content_urls":{"desktop":{"page":"https://en.wikipedia.org/wiki/Pusztakov%C3%A1csi","revisions":"https://en.wikipedia.org/wiki/Pusztakov%C3%A1csi?action=history","edit":"https://en.wikipedia.org/wiki/Pusztakov%C3%A1csi?action=edit","talk":"https://en.wikipedia.org/wiki/Talk:Pusztakov%C3%A1csi"},"mobile":{"page":"https://en.m.wikipedia.org/wiki/Pusztakov%C3%A1csi","revisions":"https://en.m.wikipedia.org/wiki/Special:History/Pusztakov%C3%A1csi","edit":"https://en.m.wikipedia.org/wiki/Pusztakov%C3%A1csi?action=edit","talk":"https://en.m.wikipedia.org/wiki/Talk:Pusztakov%C3%A1csi"}},"extract":"Pusztakovácsi is a village in Somogy county, Hungary.","extract_html":"
Pusztakovácsi is a village in Somogy county, Hungary.
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{"slip": { "id": 155, "advice": "What could you increase? What could you reduce?"}}
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