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Definition of Field glass
1. Noun. A small refracting telescope.
Definition of Field glass
1. Noun. A pair of binoculars for observing "in the field". ¹
2. Noun. A small monocular refracting telescope. ¹
3. Noun. The larger of the image lenses of an optical device. ¹
¹ Source: wiktionary.com
Lexicographical Neighbors of Field Glass
Literary usage of Field glass
Below you will find example usage of this term as found in modern and/or classical literature:
1. The Encyclopaedia Britannica: A Dictionary of Arts, Sciences, and General by Thomas Spencer Baynes (1888)
"Common or positive ето-plece. formed by the object-glass, at a distance AP equal
to one-fourth of the focal length of A. The first or field-glass, therefore ..."
2. Transactions by Cambridge Philosophical Society (1830)
"Let the field-glass be planoconvex of focal length 4, its plane side toward the
eye; and the remaining glass a meniscus of focal length 4, the radii of its ..."
3. The Microscope: Its History, Construction, and Applications: Being a by Jabez Hogg (1887)
"The field-glass has at the same time brought the blue and red images closer
together, so that they are adapted to pass uncoloured ..."
4. Elementary Treatise on Physics, Experimental and Applied by Adolphe Ganot (1893)
"The relation between the focal length of the lenses is as follows :—The focal
length of the field-glass is three times that of the eye-lens, ..."
5. Proceedings of the Cambridge Philosophical Society by Cambridge Philosophical Society (1883)
"301) says: " All eye-pieces are made adjustable for different eyes by the eyeglass
sliding nearer to the field-glass for short-sighted eyes, which require ..."
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