Optigraphn.

Brit.

/ˈɒptᵻɡrɑːf/,

/ˈɒptᵻɡraf/, U.S.

/ˈɑptəˌɡræf/

Origin: A borrowing from Greek, combined with English elements. Etymons: Greek ὀπτός , -i- connective, -graph comb. form.

Etymology: < Hellenistic Greek ὀπτός seen (see optic adj. and n.) + -i- connective + -graph comb. form.

An apparatus used to assist in drawing, esp. the drawing of landscapes. Obsolete.The apparatus consists of a telescope placed in a vertical position so that light from the object is reflected from an inclined mirror through the objective and then from another through the eyepiece, in the focus of which is placed a movable plane glass having at its centre a small dot, which can be moved over the outline of the image.

ΚΠ

1807 Philos. Mag. 28 66 Description of the Optigraph (invented by the late Mr. Ramsden)... The instrument..is so simple and easy in its operation, that a person not possessed of the least knowledge of drawing may..be perfectly able to take a perspective view of landscape, building or machinery.

a1877 E. H. Knight Pract. Dict. Mech. II. 1564/2 Optigraph, a form of camera used for the purpose of copying landscapes.

Compounds

attributive. Designating a type of microfilm reader. Now historical.

ΚΠ

1936 V. Tate in Microphotogr. for Libr. (Amer. Libr. Assoc.) 20 Two recent outstanding developments are the Draeger ‘microfilm reader’ and..Optigraph and Teledex reading machines.

1994 P. S. Richards Sci. Information in Wartime i. 15 The..exhibit [at an exposition in 1937] included an entire microfilm laboratory..and used Rupert Draeger's camera and Recordak and Optigraph reading machines.

This entry has been updated (OED Third Edition, June 2004; most recently modified version published online March 2022).

单词	optigraph
释义	Optigraphn. Brit. /ˈɒptᵻɡrɑːf/, /ˈɒptᵻɡraf/, U.S. /ˈɑptəˌɡræf/ Origin: A borrowing from Greek, combined with English elements. Etymons: Greek ὀπτός , -i- connective, -graph comb. form. Etymology: < Hellenistic Greek ὀπτός seen (see optic adj. and n.) + -i- connective + -graph comb. form. An apparatus used to assist in drawing, esp. the drawing of landscapes. Obsolete.The apparatus consists of a telescope placed in a vertical position so that light from the object is reflected from an inclined mirror through the objective and then from another through the eyepiece, in the focus of which is placed a movable plane glass having at its centre a small dot, which can be moved over the outline of the image. ΚΠ 1807 Philos. Mag. 28 66 Description of the Optigraph (invented by the late Mr. Ramsden)... The instrument..is so simple and easy in its operation, that a person not possessed of the least knowledge of drawing may..be perfectly able to take a perspective view of landscape, building or machinery. a1877 E. H. Knight Pract. Dict. Mech. II. 1564/2 Optigraph, a form of camera used for the purpose of copying landscapes. Compounds attributive. Designating a type of microfilm reader. Now historical. ΚΠ 1936 V. Tate in Microphotogr. for Libr. (Amer. Libr. Assoc.) 20 Two recent outstanding developments are the Draeger ‘microfilm reader’ and..Optigraph and Teledex reading machines. 1994 P. S. Richards Sci. Information in Wartime i. 15 The..exhibit [at an exposition in 1937] included an entire microfilm laboratory..and used Rupert Draeger's camera and Recordak and Optigraph reading machines. This entry has been updated (OED Third Edition, June 2004; most recently modified version published online March 2022). < n.1807
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