Polariscope
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At one end of the tube is a glass mirror that can be aimed in various directions. At the other is an eyepiece with an analyzer, and a graduated circle. The \u00e2\u0080\u009cSoleil Fils Opticien / Rue de l\u00e2\u0080\u0099Od\u00c3\u00a9on No 35 \u00c3\u00a0 Paris\u00e2\u0080\u009d inscription on the side of the tube refers to J. B. F. Soleil, an optical instrument maker who opened a shop at this address in 1825 and who, for a while, used the term \u00e2\u0080\u009cFils\u00e2\u0080\u009d to distinguish himself from his father, who also made optical instruments. The U.S. Military Academy bought this instrument between 1834 and 1844."}, {"label": "Description", "content": "This form was often associated with the French physicist, Jean-Baptists Biot."}, {"label": "Description", "content": "Ref: Lerebours & Secretan, <i>Catalogue et Prix des Instruments d'Optique, de Physique, de Chimie</i> (Paris, 1853)."}, {"label": "Location", "content": "Currently not on view"}], "creditLine": [{"label": "Credit Line", "content": "U.S. Military Academy"}], "name": [{"label": "maker", "content": "Henri Soleil (Soleil fils)"}, {"label": "maker", "content": "Soleil, Jean Baptiste Francois"}], "topic": [{"label": "subject", "content": "Science & Scientific Instruments"}], "place": [{"label": "place made", "content": "France: \u00c3\u008ele-de-France, Paris"}], "physicalDescription": [{"label": "Measurements", "content": "overall: 15 in x 13 in; 38.1 cm x 33.02 cm"}, {"label": "Measurements", "content": "overall: 16 7/8 in x 12 3/4 in x 5 1/2 in; 42.8625 cm x 32.385 cm x 13.97 cm"}], "dataSource": [{"label": "Data Source", "content": "National Museum of American History"}], "objectType": [{"label": "Object Name", "content": "polariscope"}]}}, "url": "edanmdm:nmah_1184195", "hash": "aa218c66b12224a44f4ea1f120645ebe53e2fa93", "docSignature": "1fad3eb93534ad19198a7c3554008c40", "timestamp": 1663782461, "lastTimeUpdated": 1653680532, "title": "Polariscope"}