phosphoroscopen.
/ˈfɒsf(ə)rəskəʊp/, U.S. /ˈfɑsf(ə)rəˌskoʊp/ Physics.† 2. A scientific toy consisting of an arrangement of glass tubes containing various phosphorescent substances, each of which glows with a different coloured light. Obsolete.
1. A device for observing phosphorescence and measuring its duration and other properties.
ΘΚΠ
the world > matter > physics > electromagnetic radiation > light > intensity of light, luminosity > [noun] > phosphorescence > apparatus for measuring
phosphoroscope1858
1858 tr. E. Becquerel in Jrnl. Photogr. Soc. 21 June 235/1 If any phosphorescent body whatever be placed in the phosphoroscope, it will be seen to be continually luminous, and that for the slowest rotation of the disc of the apparatus.
1859 M. Faraday Let. 16 Dec. in Corr. (2008) V. 619 You will see described a phosphoroscope which I had made for the evening & which answered exceedingly well especially with the nitrate of uranium.
1887 Proc. Royal Soc. 42 112 I devised an instrument similar to Becquerel's phosphoroscope, but acting electrically instead of by means of direct light.
1921 Proc. Royal Soc. A. 99 365 It seemed desirable to measure the time intervals directly, and a special type of high-speed phosphoroscope was designed for the further study of the phenomenon.
1991 Photosynthesis Res. 30 7 The principal phosphorescence bands of protochlorophyll..and chlorophyll in etiolated and greening bean leaves measured..using a mechanical phosphoroscope.
ΘΚΠ
society > leisure > entertainment > toy or plaything > optical and scientific toys > [noun]
multiplying-glass1639
Cartesian devil1731
kaleidoscope1817
myriorama1823
thaumatrope1827
bottle imp1833
phantasmascope1833
phenakistoscope1834
stroboscope1836
anorthoscope1842
tantalus-cup1842
phantascope1851
phantoscope1861
Pharaoh's serpent1863
phosphoroscope1866
zoetrope1866
wheel of life1872
praxinoscope1878
zoopraxiscope1881
phantoscope1894
Newton's cradle1971
1866 Leeds Mercury 19 Dec. Messrs. Harvey, Reynolds, and Co. were, as usual, large contributors. Their articles..included..a trap to catch sunbeams, or the Phosphoroscope.
1867 Christian's Monthly News 1 Jan. 8/3 (advt.) Latest Optical Novelties.. The Phosphoscope, or Trap to Catch a Sunbeam; a New Invention, demonstrating the Various Colours of which Light is composed. 3s. 6d.
1869 Sci. Amer. 9 Oct. 232/3 We can, as it were, bottle up some light... A pretty toy has been constructed for this purpose, called a phosphoroscope or light-bearer, by Messrs. Harvey and Reynolds, of Leeds.
1881 J. E. H. Gordon Physical Treat. Electr. & Magn. II. 116 Alumina..glowing with a rich red colour in the phosphoroscope.
This entry has been updated (OED Third Edition, March 2006; most recently modified version published online March 2022).
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n.1858