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polarimeter eyepiece with divided circle
polarimeter eyepiece with divided circle

polarimeter eyepiece with divided circle

Date1840-1875
Inventory Number1997-1-0851
ClassificationEyepiece
Subject
    Maker Louis Jules Duboscq ? French, 1817 - 1886
    Cultural Region
      Place of Origin
        Dimensions7.8 × 10.2 × 10.2 cm (3 1/16 × 4 × 4 in.)
        Material
          DescriptionEyepiece with blackened eyecup and flared brass tube. A brass disk is mounted at right angles to the tube and carries a paper scale divided 0-90-0-90-0 every 1°. The scale is printed on the paper, but numerals from [100] - 180 are inked below a quadrant. The paper is torn off in one place.
          Signedunsigned
          Curatorial RemarksFor a complete example of a Duboscq saccharimeter, see 1993-1-0002.
          2 eyepieces with divided crystals
          Jean Baptiste François Soleil
          Date: 1830-1875
          Object number: 2007-1-0323
          Nörrenberg-type polariscope (or doubler)
          Jean Baptiste François Soleil
          Date: circa 1840
          Accessories: eyepiece; circular supports (2)
          Object number: 2015
          polariscope eyepiece
          Jean Baptiste François Soleil
          Date: 1850-1875
          Object number: 2007-1-0319
          polariscope eyepiece
          Jean Baptiste François Soleil
          Date: 1850-1875
          Object number: 2007-1-0320
          polariscope analysor eyepiece
          Jean Baptiste François Soleil
          Date: 1850-1875
          Object number: 2007-1-0321
          birefringent eyepiece
          Jean Baptiste François Soleil
          Date: 1840-1875
          Object number: 2007-1-0322
          polariscope eyepiece
          Jean Baptiste François Soleil
          Date: 1830-1875
          Object number: 2007-1-0325
          polariscope eyepiece
          Jean Baptiste François Soleil
          Date: 1830-1875
          Object number: 2007-1-0326
          Silbermann-type heliostat
          Jean Baptiste François Soleil
          Date: circa 1845
          Object number: 1999-1-0017
          Brewster fringes apparatus
          Jean Baptiste François Soleil
          Date: 1840-1850
          Object number: 1998-1-1226
          30°-60°-90° mounted prism
          Jean Baptiste François Soleil
          Date: 1840-1875
          Object number: 1998-1-1210b
          split object glass in tension frame to study strain by polarization
          Jean Baptiste François Soleil
          Date: 1840-1860
          Object number: 2007-1-0435