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Definition of Focuser
1. Noun. A device which allows one to adjust the focus of an instrument such as a telescope. ¹
¹ Source: wiktionary.com
Definition of Focuser
1. one that focuses [n -S]
Lexicographical Neighbors of Focuser
Literary usage of Focuser
Below you will find example usage of this term as found in modern and/or classical literature:
1. The Encyclopædic Dictionary of Photography: Containing Over 2,000 References by Walter E. Woodbury (1896)
"Also called the focuser, focusing magnifier, compound focuser, etc. A magnifying
glass fitted in a tube, and so arranged that the image upon the focusing ..."
2. Practical Photo-micrography: By the Latest Methods by Andrew Pringle (1890)
"... none the less the glass plate affords a convenient rest for the Ramsden or
Aplanatic, but there must be no heavy pressure of focuser on screen. ..."
3. Practical Photo-micrography: By the Latest Methods by Andrew Pringle (1890)
"... but there must be no heavy pressure of focuser on screen. There are many other
ways of producing a focusing screen but probably the best have been here ..."
4. We and Our Children by Woods Hutchinson (1911)
"To put it very crudely, a little ball of cells has formed itself in the centre
of eye, for the purpose of acting as a lens or focuser of the light rays. ..."
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