| 单词 | short-focused |
| 释义 | > as lemmasshort-focused 1. With modifying word or words: having a focus of a specified length, as long-focused, short-focused, etc. Cf. focus n. 5c. ΘΚΠ the world > physical sensation > sight and vision > optical instruments > lens > [adjective] > focal length or point focused1784 thermo-focal1903 1784 I. Atkinson Compend. Course Lect. 33 So that the shorter focus'd glass condenses the solar spot four times more than the longer. 1845 Trans. Soc. Arts 55 99 With..the long-focused camera obscura which was at first employed, no picture could be taken..in less than about a quarter of an hour. 1858 L. Price Man. Photogr. Manip. ii. 69 ‘Short-focused’ lenses are employed for children. 1901 Wilson's Photogr. Mag. Dec. 463/2 The diameter of the circle of confusion..formed when the 12-inch focused lens is stopped down to f/16 only. 1985 Field & Stream Oct. 95/3 Several U.S. scope makers have short-focused scopes.., and I'd assume your dealer could special-order one. 2013 W. R. Hedrick Technol. Diagnostic Sonogr. v. 44/1 A medium-focused transducer has a focal length of 4 to 10 cm. < as lemmas |
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