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diffraction gratings on platinum-iridium
diffraction gratings on platinum-iridium

diffraction gratings on platinum-iridium

Date1940-1960
Inventory Number2004-1-0444
ClassificationDiffraction Grating
Subject
    User Kenneth T. Bainbridge 1904 - 1996
    Maker Jefferson Physical Laboratory, Harvard University ? founded 1884
    Cultural Region
      Place of Use
        Dimensionsplate: 0.1 x 3.9 x 3.9 cm (1 9/16 x 1 9/16 in.)
        full envelope: 3 x 9 x 6.5 cm (1 3/16 x 3 9/16 x 2 9/16 in.)
        Material
          Accessorieswrapped in cotton cloth and kept in an envelope
          DescriptionA thin square plate of grey metal (platinum-iridium alloy) with diffraction gratings etched on one of its sides.
          Signedreturn address on envelope: JEFFERSON PHYSICAL LABORATORY / HARVARD UNIVERSITY, / CAMBRIDGE, MASS
          Inscribedhandwritten on envelope: Grating on Pt. Iridium
          diffraction gratings
          diffraction gratings
          Scientific Shop
          Date: 1900-1910
          Accessories: Ives' photographic replica of diffraction grating Ives' photographic replica of circular grating
          Object number: WJ0631
          set of diffraction gratings
          set of diffraction gratings
          American
          Date: circa 1985
          Object number: 2004-1-0367
          Rutherfurd diffraction grating in original black leather covered box
          Rutherfurd diffraction grating in original black leather covered box
          Lewis M. Rutherfurd
          Date: 1877
          Accessories: leather case
          Object number: 2044
          concave diffraction grating
          concave diffraction grating
          American
          Date: 1903-1914
          Accessories: box
          Object number: 2038
          concave diffraction grating
          concave diffraction grating
          American
          Date: 1920-1940
          Object number: 1998-1-1324
          concave diffraction grating
          concave diffraction grating
          American
          Date: circa 1925
          Accessories: metal box
          Object number: 2027
          concave diffraction grating for 3-meter spectrograph
          concave diffraction grating for 3-meter spectrograph
          Jarrell-Ash Company
          Date: circa 1946
          Object number: 2052a
          concave diffraction grating
          concave diffraction grating
          Bausch & Lomb Optical Company
          Date: circa 1915
          Object number: 2032
          concave glass diffraction grating
          concave glass diffraction grating
          Robert W. Wood
          Date: 1928
          Accessories: wooden box
          Object number: 2022
          Rowland concave diffraction grating
          Rowland concave diffraction grating
          Henry A. Rowland
          Date: circa 1884
          Accessories: wooden box; key
          Object number: 2031
          Rowland concave diffraction grating in stand
          Rowland concave diffraction grating in stand
          Henry A. Rowland
          Date: 1897
          Object number: 2037
          flat diffraction grating
          flat diffraction grating
          Schneider
          Date: 1883
          Accessories: box
          Object number: 2034