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achromatic doublet with cutaway section
achromatic doublet with cutaway section

achromatic doublet with cutaway section

Date1875-1925
Inventory Number2007-1-0344
ClassificationLens
Subject
    Maker French ?
    Maker German ?
    Maker American ?
    Cultural Region
      Dimensions2.6 × 3.2 × 4.2 cm (1 × 1 1/4 × 1 5/8 in.)
      Material
        DescriptionAn achromatic doublet lens is held in a blackened brass collar attached at right angles to a bracket. The lens has its lower third cut off to reveal the doublet pair.
        Signedunsigned
        achromatic doublet lens
        achromatic doublet lens
        Edmund Salvage Company
        Date: 1942-1950
        Object number: 2004-1-0392
        achromatic doublet lens
        achromatic doublet lens
        Edmund Salvage Company
        Date: 1942-1950
        Object number: 2006-1-0033
        achromatic doublet lens
        achromatic doublet lens
        Edmund Salvage Company
        Date: 1942-1950
        Object number: 2006-1-0034
        assorted lenses and windows mounted in cells
        assorted lenses and windows mounted in cells
        Carl Zeiss Jena
        Date: early 20th Century
        Object number: 1998-1-0408
        cell for rear doublet lens of 10-inch Boyden photographic telescope
        cell for rear doublet lens of 10-inch Boyden photographic telescope
        Alvan Clark and Sons
        Date: 1889
        Accessories: box
        Object number: 1997-1-0036
        10-inch crown-glass element for rear doublet of Boyden telescope
        10-inch crown-glass element for rear doublet of Boyden telescope
        Alvan Clark and Sons
        Date: 1889
        Object number: 1996-1-0470a
        2.5-inch cemented doublet lens
        2.5-inch cemented doublet lens
        Alvan Clark and Sons
        Date: circa 1900
        Object number: 1998-1-0416a
        10-inch flint-glass element for rear doublet of Boyden telescope
        10-inch flint-glass element for rear doublet of Boyden telescope
        Alvan Clark and Sons
        Date: 1889
        Object number: 1996-1-0470b
        10-inch rear doublet lens for Boyden photographic telescope
        10-inch rear doublet lens for Boyden photographic telescope
        Alvan Clark and Sons
        Date: 1889
        Object number: 1996-1-0470a-c
        8-inch crown-glass element (on left) and flint glass element (on right) for rear doublet of f/1…
        8-inch rear doublet for f/16.5 Boyden photographic telescope
        Alvan Clark and Sons
        Date: 1887
        Object number: 1996-1-0473a-c
        4.5-inch correcting doublet lens for telescope
        4.5-inch correcting doublet lens for telescope
        American
        Date: 1920-1940
        Object number: 1996-1-0519
        24-inch Bruce doublet photographic telescope optics
        24-inch Bruce doublet photographic telescope optics
        Alvan Clark and Sons
        Date: 1890-1893
        Object number: 2016-1-0044