38:
585:, this article notes some of the prospective benefits to science and to photography in general. Caution: an error found in early English-language reports of Becquerel's results with chlorophyll is repeated here. In his original paper in French (
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from
England, Vogel was amazed to find that they were more sensitive to green than to blue. He sought the cause and his experiments indicated that this sensitivity was due to a yellow substance in the emulsion, apparently included as an
593:
C and B (red), not C and D (orange) as it appears in a widely-copied
English translation which is reflected here. Subsequent references to these lines in his paper confirm that "C et B" as it appears on page 188 of the original is
542:, July 3, 1874:320-321. In this communication, apparently in the original English, Vogel answers critics who suggest that the sensitivity into red which he reports is an error due to an impure spectrum by noting that the
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recorded on his test plates are in their correct locations, which would not be the case if the photographic action were due to light of other wavelengths. For further details cf.
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in use at that time were sensitive to blue, violet and ultraviolet light, but only slightly sensitive to green and practically insensitive to the rest of the
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244:), where he introduced photography as a field of study. From 1884, he was director of the photo-technical laboratory of TH Charlottenburg.
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to freshly prepared emulsions and found several dyes which added sensitivity to various parts of the spectrum, closely corresponding to
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agent. Rinsing it out with alcohol removed the unusual sensitivity to green. He then tried adding small amounts of various
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229:
with Light and the Theory of
Photography). This marked the beginning of his research into the photographic process.
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This made photography much more useful to science, allowed a more satisfactory rendering of colored subjects into
571:
508:, date and page not cited but apparently December 12, 1873, in turn translated from Vogel's own publication
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215:Ăśber das Verhalten des Chlorsilbers, Bromsilbers und Iodsilbers im Licht und die Theorie der Photographie
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of light the dyes absorbed. Vogel was able to add sensitivity to green, yellow, orange and even red.
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Vogel, H: "On the sensitiveness of bromide of silver to the so-called chemically inactive colours",
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The
Chemistry of Light and Photography, in Their Application to Art, Science, and Industry
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In 1873 Vogel discovered dye sensitization, a pivotal contribution to the progress of
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between 1882 and 1886. He participated in at least two photographic expeditions to
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article on carbon monoxide detection developed by Vogel, 23 June 1877, p. 386
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From 1860 until 1865, he was an assistant in the mineralogical museum of the
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In addition to his work as a photographic technical innovator, Vogel taught
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In the early 1890s, Vogel's son Ernst assisted German-American photographer
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Die
Photographie farbiger Gegenstände in den richtigen Tonverhältnissen
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43:
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who discovered dye sensitization, which is of great importance to
407:(New and thoroughly revised edition, D. Appleton, New York 1889)
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in applying dye sensitization and three-color photography to
589:(1874) 79:185-190) Becquerel reports strong action between
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for pigment printing and heliotype printing, and universal
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could be economically mass-produced with a printing press.
381:
Die chemischen
Wirkungen des Lichts und die Photographie
16:
German photochemist and university lecturer (1834–1898)
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in 1864 and served as its publisher until his death.
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132:
118:
101:
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51:
28:
197:, he studied at the Royal Industrial Institute of
581:. After summarizing the discoveries of Vogel and
355:were introduced into general use. He visited the
173:(26 March 1834 – 17 December 1898) was a German
42:Hermann Wilhelm Vogel, with signature in partial
607:Exploring Color Photography: From Film to Pixels
538:Vogel, H: "Rendering actinic non-actinic rays",
209:in 1863. Vogel's thesis, which was published in
810:Academic staff of Technische Universität Berlin
693:Erich Stenger (1934). "Hermann Wilhelm Vogel".
433:Encyclopedia of Nineteenth-Century Photography
8:
521:Vogel, H: "Photo-spectroscopic researches",
375:Praktische Spektralanalyse irdischer Stoffe
550:: Mapping the Spectrum, Oxford: OUP, 2002.
525:, March 20, 1874:136-137, translated from
504:, December 26, 1873:318-319, copying from
25:
652:Mr. J.R. Gossage, Dr. H.W. Vogel (2000).
604:Hirsch, Robert; Erf, Greg (2010-12-28).
566:"Recent Researches in Photography"
476:Grove Art Online, Vogel, Hermann Wilhelm
800:People from the Province of Brandenburg
610:. Taylor & Francis US. p. 24.
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739:The chemistry of light and photography
236:. From 1864 he was a professor at the
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469:
264:. While trying out some factory-made
7:
805:Humboldt University of Berlin alumni
780:Chemists from the Kingdom of Prussia
393:Vom Indischen Ozean bis zum Goldland
14:
667:Rines, George Edwin, ed. (1920).
529:, February, 1874 10(119):279-283.
512:, December, 1873 10(117):233-237.
301:into the realm of the practical.
207:Karl Friedrich August Rammelsberg
149:Karl Friedrich August Rammelsberg
750:A Simple Test For Carbonic Oxide
575:. Vol. 5. pp. 717–720.
395:Reisebeobachtungen (Berlin 1878)
36:
340:. Vogel founded the periodical
795:Photographers from Brandenburg
785:People from Doberlug-Kirchhain
670:"Vogel, Hermann Wilhelm"
383:(Second edition, Leipzig 1883)
1:
577:ISSN 0161-7370, copying from
527:Photographische Mittheilungen
510:Photographische Mittheilungen
377:(Second edition, Berlin 1888)
342:Photographische Mittheilungen
242:Technische Universität Berlin
137:Technische Universität Berlin
790:19th-century German chemists
736:Herman Wilhelm Vogel (1875)
430:Hannavy, John (2013-12-16).
371:(Third edition, Berlin 1878)
411:Ăśber das Spiritistentreiben
826:
399:Lichtbilder nach der Natur
193:After finishing school in
18:
369:Lehrbuch der Photographie
240:in Charlottenburg (today
164:
111:
35:
462:, Leipzig, 1863, pp. 497
19:Not to be confused with
572:Popular Science Monthly
676:Encyclopedia Americana
258:photographic emulsions
540:The Photographic News
523:The Photographic News
506:The Photographic News
332:as well as others to
297:, and brought actual
238:Technische Hochschule
171:Hermann Wilhelm Vogel
30:Hermann Wilhelm Vogel
234:University of Berlin
211:Poggendorffs Annalen
106:University of Berlin
754:Scientific American
707:1934NW.....22..177S
695:Naturwissenschaften
488:"Dye Sensitization"
347:His silver tester,
744:Linda Hall Library
715:10.1007/BF01494919
639:"Alfred Stieglitz"
460:Annalen der Physik
359:in 1870 and 1883.
312:printing, so that
63:Kingdom of Prussia
46:handwriting script
21:Hermann Carl Vogel
656:. Nazraeli Press.
443:978-1-135-87327-1
314:full-color prints
299:color photography
248:Dye sensitization
213:, had the title:
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155:Doctoral students
113:Scientific career
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591:Fraunhofer lines
583:Edmond Becquerel
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563:(October 1874).
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320:Other activities
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159:Alfred Stieglitz
144:Doctoral advisor
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436:. Routledge.
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175:photochemist
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133:Institutions
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75:(1898-12-17)
775:1898 deaths
770:1834 births
561:Meldola, R.
288:wavelengths
254:photography
183:photography
127:photography
92:Nationality
764:Categories
687:References
458:119
349:photometer
272:dry plates
266:collodion
59:Dobrilugk
723:33100564
594:correct.
310:halftone
262:spectrum
703:Bibcode
623:28 July
281:aniline
269:bromide
44:Kurrent
721:
654:Empire
614:
579:Nature
440:
256:. The
199:Berlin
119:Fields
96:German
81:Berlin
719:S2CID
418:Notes
334:Italy
330:Egypt
205:with
203:Ph.D.
625:2012
612:ISBN
456:(de)
438:ISBN
338:Asia
284:dyes
225:and
177:and
70:Died
52:Born
752:",
711:doi
766::
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468:^
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