| 释义 |
photoscope|ˈfəʊtəskəʊp|
[f. photo- + -scope.]
a. A means of examining light, e.g. for purposes of analysis.
b. An instrument for measuring the intensity of light by means of the varying electrical resistance of some substance sensitive to light, such as selenium.
c. (See quot. 1896.)
d. [with photo- taken as = photograph.] A lens or apparatus with lenses, through which photographs are viewed.
1872tr. Schellen's Spectr. Anal. xli. 230 The solar spectrum is the most perfect photoscope that in the present state of science can be imagined. 1875Knight Dict. Mech. 1690/1 Photoscope, an instrument or apparatus for exhibiting photographs. 1896Current Hist. (Buffalo) VI. 16 An instrument called a ‘photoscope’..to examine certain internal parts of the human body..with the aid of sunlight only. |