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单词 calotype
释义 I. calotype, n. Photography.|ˈkælətaɪp|
[f. Gr. καλός beautiful + τύπος type.]
The name given by Fox Talbot to the process of producing photographs, invented by him in 1841, sometimes also called Talbotype. The picture was produced by the action of light upon silver iodide, the latent image being subsequently developed and fixed by hyposulphite of soda. Also attrib., as in calotype process, calotype picture, etc.
1841Fox Talbot Specif. Patent No. 8842. 3 The paper thus prepared, and which I term ‘calotype paper’, is placed in a camera.1845Athenæum 22 Feb. 202 The sharpness of the outline of the Calotype pictures is..inferior to that of the Daguerreotypes.1881Times 4 Jan. 3/5 Calotype, or the waxed paper process, with its development by means of silver, superseded the daguerreotype, in which the image was developed by mercury vapour; and, again, calotype..was ousted..by Archer's collodion process, in which the paper picture gave way to..glass and a substratum of collodion.
Hence caloˈtypic a., ˈcaloˌtypist.
1854Scoffern in Orr's Circ. Sc. Chem. 88 Paper suitable for taking Calotypic impressions.1855Browning Mesmerism ix, I imprint her fast On the void at last As the sun does whom he will By the calotypist's skill.
II. ˈcalotype, v.
[f. prec. n.; cf. to photograph.]
trans. To represent or imprint by the calotype process; to photograph.
1853Blackw. Mag. LXXIV. 754 Presenting the mind to it in a state of repose..a blank sheet of paper, upon which the object may reflect or calotype itself.a1879M. Collins in Pen Sk. I. cxciv, Who could calotype Amy's laugh?
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