Astronomy:Graphic telescope
From HandWiki
The graphic telescope is a type of camera lucida that has the power of a telescope. It was invented by Cornelius Varley in 1809.[1] It can be used to draw broad landscapes.
Graphic telescopes allow the size of the projected image to be adjusted.[2] They can be used separately, or with a portable table to reduce vibrations.[1][3] They may also be mounted in a vehicle.[4]
See also
References
- ↑ 1.0 1.1 "Cornelius Varley". Grace's Guide to British Industrial History. https://www.gracesguide.co.uk/Cornelius_Varley.
- ↑ "Camera Lucida & Varley Graphic Telescope - Victoria and Albert Museum". 28 December 2010. http://www.vam.ac.uk/collections/paintings/features/cheating/lucida/index.html.
- ↑ "Original ad for graphic telescope". https://collection.sciencemuseumgroup.org.uk/objects/co536823/cornelius-varleys-patent-graphic-telescope-trade-card.
- ↑ "Cornelius Varley's Patent Graphic Telescope" (in en). https://www.cloudynights.com/topic/589504-cornelius-varleys-patent-graphic-telescope/.
External links
- Camera lucida and Varley Graphic telescope
- "Using the Patent Graphic Telescope" (in en). https://video.whyy.org/video/friday-arts-varleys-marvelous-invention-using-patent-graphic-teles/.
- "The graphic telescope and Varley's artwork". Whipple Museum of the History of Science. http://www.sites.hps.cam.ac.uk/whipple/explore/astronomy/artandastronomy/graphictelescope/. (includes 1840 magazine article on instrument)
- A picture of a Graphic telescope, another.
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