PROJECTOR • DICTIONARY ONE.COM • Definition of Projector

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/prədʒˈɛktər/ Listen

noun

Projector n.

1.

One who projects a scheme or design; hence, one who forms fanciful or chimerical schemes.

2.

An optical instrument which projects an image from a transparency or an opaque image onto a projection screen or other surface, using an intense light and one or more lenses to focus the image. The term projector by itself is usually used for projection of transparent images by passing the light beam through the image; a projector which projects an image of an opaque object is now ususally referred to as an overhead projector. In projection of this latter form the projection is accomplished by means of a combination of lenses with a prism and a mirror or reflector. Specific instruments have been called by different names, such as balopticon, radiopticon, radiopticon, mirrorscope, etc.

Slide projector a projector for displaying images from individual transparencies (slides), each mounted in a separate frame suited to the mechanics of the projector.

movie projector a projector which displays a series of images from a roll of transparent film in rapid sucession, thus giving the impression of showing a scene with motion as it originally was recorded.

overhead projector see projector 2, above. >

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Etymology of 'Projector'

Collaborative International Dictionary of English 0.48

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"Projector" Quotes from Famous Books

... moving swiftly toward a crisis which was to change all this. One more pope, that magnificent patron of art, Julius II., creator of the Vatican Museum, with the recently found Apollo Belvedere, and the Laocooen as a splendid nucleus, and projector and builder of St. Peter's. And then Leo X. ...

— A Short History of France • Mary Platt Parmele

... the place were on the tip-toe of expectation and impatience. Notwithstanding all the turmoil of my great-grandfather, not a symptom of the church was yet to be seen; they even began to fear it would never be brought into the world, but that its great projector would lie down and die in labor of the mighty plan he had conceived. At length, having occupied twelve good months in puffing and paddling, and talking and walking,—having traveled over all Holland, and even taken ...

— Tobacco; Its History, Varieties, Culture, Manufacture and Commerce • E. R. Billings

... Grant, was the projector and manager of a Pony Express from Kiachta to Pekin. He forwarded telegrams between London and Shanghae merchants, any others who chose to employ him. He claimed that his Mongol couriers made the journey to Pekin in twelve days, and that he could outstrip the Suez and Ceylon ...

— Overland through Asia; Pictures of Siberian, Chinese, and Tartar - Life • Thomas Wallace Knox

... formed in the same mould. We were therefore induced to discontinue the name of Missouri, and gave to the southwest branch the name of Jefferson in honour of the president of the United States, and the projector of the enterprise: and called the middle branch Madison, after James Madison secretary of state. These two, as well as Gallatin river, run with great velocity and throw out large bodies of water. Gallatin river is however the most rapid of the three, and though not quite as deep, yet navigable ...

— History of the Expedition under the Command of Captains Lewis and Clark, Vol. I. • Meriwether Lewis and William Clark

... Watterson was a man of mark in his day. He was decidedly a constructive—the projector and in part the builder of an important railway line—an early friend and comrade of General Jackson, who was all too busy to take office, and, indeed, who throughout his life disdained the ephemeral honors of public life. The Wattersons had migrated directly from ...

— Marse Henry, Complete - An Autobiography • Henry Watterson

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