| 单词 |
field-glass |
| 释义 |
ˈfield-glass
[f. field n. + glass.]
1. A binocular telescope for use in the field. Now usu. in pl.
1836Wellington Let. 8 Oct. in Stanhope Conversations, I send you one of my field-glasses. 1880Ouida Moths I. 20 A prolonged gaze through a friend's field-glass. 1888Century Mag. XXXVI. 211/1 A minute examination, with the field-glasses, of all the neighboring mountain. 1911M. Corelli Life Everlasting vii. 142 Mr. Harland was..searching for his field-glasses. 1932Discovery Oct. 330/2 The meter reading is recorded by observations carried out with powerful field glasses. 1963A. Smith Throw out Two Hands xv. 155 Through field⁓glasses one looks for shapes, and shapes are therefore recognized.
2. ‘A small achromatic telescope, usually from 20 to 24 inches long, and having from three to six joints’ (Ogilv.).
3. That one of the two lenses forming the eyepiece of an astronomical telescope or compound microscope, which is the nearer to the object glass.
1831Brewster Optics xli. 340 A larger lens than any of the other two, called the field-glass. 1867J. Hogg Microsc. i. ii. 40 An amplifying lens by which the field of view is enlarged..is..called a field-glass. |
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