Students' Text-book of Color: Or, Modern Chromatics, with Applications to Art and IndustryD. Appleton, 1903 - 329 pagini |
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Pagina 27
... equal changes of wave- length actually are accompanied by equal alterations of hue in all parts of the spectrum . To take an example : in pass- ing from the orange - yellow , through the pure yellow and greenish - yellow well into the ...
... equal changes of wave- length actually are accompanied by equal alterations of hue in all parts of the spectrum . To take an example : in pass- ing from the orange - yellow , through the pure yellow and greenish - yellow well into the ...
Pagina 36
... equal to the sum of the intensities of the separate components . But to resume our search for colour - constants . We may meet with two portions of coloured light having the same degree of purity and the same apparent brightness , which ...
... equal to the sum of the intensities of the separate components . But to resume our search for colour - constants . We may meet with two portions of coloured light having the same degree of purity and the same apparent brightness , which ...
Pagina 37
... the field the scale is visible , and with its aid the precise position of the prismatic hue can be determined . Instead of using a scale divided into equal parts , it is often advantageous THE CONSTANTS OF COLOUR . 37.
... the field the scale is visible , and with its aid the precise position of the prismatic hue can be determined . Instead of using a scale divided into equal parts , it is often advantageous THE CONSTANTS OF COLOUR . 37.
Pagina 38
... equal parts , it is often advantageous to employ the plan suggested by Dr. J. C. Dalton , and used by him for determining the position of certain absorption bands . Dr. Dalton employs as a scale a minute photograph which shows the ...
... equal parts , it is often advantageous to employ the plan suggested by Dr. J. C. Dalton , and used by him for determining the position of certain absorption bands . Dr. Dalton employs as a scale a minute photograph which shows the ...
Pagina 40
... equal . With the aid of the table of luminosities previously given , this correction can be made , and it will be found that four or five times as much white light is actually neces- sary as is indicated above . Compare Chapter x ...
... equal . With the aid of the table of luminosities previously given , this correction can be made , and it will be found that four or five times as much white light is actually neces- sary as is indicated above . Compare Chapter x ...
Alte ediții - Afișează-le pe toate
Students' Text-book of Color: Or, Modern Chromatics, with Applications to ... Ogden Nicholas Rood Vizualizare completă - 1895 |
Students' Text-book of Color; Or, Modern Chromatics: With Applications to ... Ogden Nicholas Rood Vizualizare completă - 1899 |
Students' Text-book of Color: Or, Modern Chromatics, with Applications to ... Ogden Nicholas Rood Vizualizare completă - 1913 |
Termeni și expresii frecvente
appear arranged artists beautiful blue-green bluish bluish-green bright brilliant brown carmine cause changes CHAPTER chromatic circle chromatic composition chrome-yellow colour-blind coloured light coloured surfaces combinations complementary colours contrast cyan-blue dark darkened emerald-green employed experiment fact fixed lines fundamental colours furnished gamboge gives gradation green and violet green light green-blue greenish greenish-blue greenish-yellow Helmholtz hence illumination Illustrations indicated in Fig intensity kind less light and shade luminosity luminous Maxwell ment mingled mixed mixture nature normal eye normal spectrum objects observer obtained ochre optic nerve orange orange-red orange-yellow painted pale pigments placed plate portion position present prism Professor Prussian-blue pure colours pure grey purple rays reach the eye red and green red lead red light reflected light result retina rotation saturated sensation stained glass theory of colour tints tion transmitted ultramarine ultramarine-blue uranium glass vermilion violet nerves violet-blue water-colour wave-length white light white paper yellowish yellowish-green
Pasaje populare
Pagina 246 - ... just what curvature is to lines, both being felt to be beautiful by the pure instinct of every human mind, and both, considered as types, expressing the law of gradual change and progress in the human soul itself.