File:The ultra-violet and visible transmission of various colored glasses. (1919) (14591436459).jpg

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Description
English:

Identifier: ultravioletvis1919148gibs (find matches)
Title: The ultra-violet and visible transmission of various colored glasses.
Year: 1919 (1910s)
Authors: Gibson, K.S. Tyndall, E.P.T. McNicholas, H.J.
Subjects:
Publisher: National Bureau of Standards
Contributing Library: NIST Research Library
Digitizing Sponsor: NIST Research Library

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Text Appearing Before Image:
vided into 100units; and in many cases, especially at low transmissions and inthe better specimens, the uncertainty is definitely less than this.The actual values have not been plotted, inasmuch as the pur-pose of the paper is to give information as to the transmissionrather than to compare methods, and the values, if plotted, mightcause considerable confusion. III. TRANSMISSION DATAI. DEFINITION OF TERMS The transmission of a specimen is defined as that fraction ofradiant energy incident on the first surface which gets throughthe second surface. In a comparison of the transmissions ofdifferent samples, due account must be taken of the variation oftransmission with thickness. This may be done, at least approxi-mately, by means of the following equation: T8™(i~i?)2 l* wherein T is the transmission as already defined, R is the fractionof radiant power reflected at each surface of the specimen, T isthe transmittance or the transmission corrected for reflection, b Sm K wm M >=< HO
Text Appearing After Image:
KNOWN TRANSMITTANCE T

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https://www.flickr.com/photos/internetarchivebookimages/14591436459/

Author Internet Archive Book Images
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Volume
InfoField
1919
Flickr tags
InfoField
  • bookid:ultravioletvis1919148gibs
  • bookyear:1919
  • bookdecade:1910
  • bookcentury:1900
  • bookauthor:Gibson__K_S_
  • bookauthor:_Tyndall__E_P_T_
  • bookauthor:_McNicholas__H_J_
  • bookpublisher:National_Bureau_of_Standards
  • bookcontributor:NIST_Research_Library
  • booksponsor:NIST_Research_Library
  • bookleafnumber:12
  • bookcollection:NBSTechnologicPapers
  • bookcollection:NISTresearchlibrary
  • bookcollection:fedlink
  • bookcollection:americana
Flickr posted date
InfoField
29 July 2014

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