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Home > Art, Film & Photography > The Illuminating Engineer; Official Organ of the Illuminating Engineering Society
The Illuminating Engineer; Official Organ of the Illuminating Engineering Society

The Illuminating Engineer; Official Organ of the Illuminating Engineering Society


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About the Book

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1908 Excerpt: ...subject in a practical manner. I thought that I had stated my theories simply and clearly, but it seems that such was not the case. I am led to believe that same was not understood, owmg to the fact that some who have criticised this theory have almost entirely lost sight of the varous points which I ende-ivored to bring out. Briefly stated, such points wera as follows: It is a well known fact that black surfaces absorb, and white surfaces will reflect the light thrown upon them. Therefore, black is a non-stimulaiu. while white does stimulate the retina of the eye. Generally speaking, printed matte"' is printed with black symbols on white backgrounds. With this method it is reasonable to state that one does nof actually, "see" what is looked at, but what is seen is the surrounding white background, and the letters, or symbols, purely by contrast. In this manner the eye 13 compelled to receive the light rays which are reflected from the white background, which generally is infinitely larger than the area taken up by the symbols. The remedy or method which I suggest is the use of light tinted symbols on a dark background. With the use of this method the light tinted symbols would reflect the larger percentage of the light rays striking their surfaces, while the dark tinted background would absorb nearly all of the light rays striking same, thus performing the function for which the background was devised. By the use of this method the eye will naturally "see" directly and not indirectly as with the method now in use. In the July, 1908, issue of "The Illuminatng Engineer," Dr. Nelson M. Black takes issue with the writer on the practibility, from a physiological point of view, of making use of the theory presented, and among t...


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Product Details
  • ISBN-13: 9781231005897
  • Publisher: Rarebooksclub.com
  • Publisher Imprint: Rarebooksclub.com
  • Height: 246 mm
  • No of Pages: 358
  • Spine Width: 19 mm
  • Width: 189 mm
  • ISBN-10: 1231005890
  • Publisher Date: 01 May 2012
  • Binding: Paperback
  • Language: English
  • Returnable: N
  • Weight: 640 gr


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