Crossword clues for focus
focus
- Zero in on
- Prepare to "fire" a Canon
- Photog's concern
- Adjust a camera lens
- Top priority
- Make it really clear?
- Cameraman's concern
- Yell to the projectionist
- Tune out distractions
- Sharpen view
- Sharpen the image in the viewfinder
- Prepare to take a picture
- Point at which light rays converge or diverge
- Movie theater yell
- Movie theater shout
- Make things clear, in a way
- Make sharp, in a way
- Important part of a slide projector
- Ignore distractions
- Ignore all distractions
- Eliminate distractions
- Ditch the diversions
- Concentrate on a task
- Centre of concentration
- Camera adjustment
- Camcorder function
- An automatic camera can do it for you
- Adjust, as a telescope
- Adjust camera lens
- Adjust binoculars
- Adjust a lens
- Adjust a camera
- Zero in (on)
- Think hard
- Try hard to visualize
- Problem-solving advice appropriate for this puzzle?
- Camera concern
- Concentrate (on)
- Advice for the easily distracted
- A fixed reference point on the concave side of a conic section
- The concentration of attention or energy on something
- Maximum clarity or distinctness of an image rendered by an optical system
- Maximum clarity or distinctness of an idea
- A central point or locus of an infection in an organism
- Special emphasis attached to something
- A point of convergence of light (or other radiation) or a point from which it diverges
- Point of concentration
- Center of attention
- Adjust the lens
- Heart; core
- Maximum clarity of an idea
- Main topic of attention
- Main emphasis
- Concentrate on diplomats America caught hacking
- Centre of interest
- Centre of attention
- Endless to-do about commander’s centre of activity
- Female insect without wings is centre of attention
- Print union leader, not fit for purpose, making a point
- Central point
- Focal point
- Prepare to shoot with a Canon
- "Pay attention!" (Ford)
Longman Dictionary of Contemporary English
The Collaborative International Dictionary
Focus \Fo"cus\ (f[=o]"k[u^]s), n.; pl. E. Focuses (f[=o]"k[u^]s*[e^]z), L. Foci (f[=o]"s[imac]). [L. focus hearth, fireplace; perh. akin to E. bake. Cf. Curfew, Fuel, Fusil the firearm.]
(Opt.) A point in which the rays of light meet, after being reflected or refracted, and at which the image is formed; as, the focus of a lens or mirror.
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(Geom.) A point so related to a conic section and certain straight line called the directrix that the ratio of the distance between any point of the curve and the focus to the distance of the same point from the directrix is constant.
Note: Thus, in the ellipse FGHKLM, A is the focus and CD the directrix, when the ratios FA:FE, GA:GD, MA:MC, etc., are all equal. So in the hyperbola, A is the focus and CD the directrix when the ratio HA:HK is constant for all points of the curve; and in the parabola, A is the focus and CD the directrix when the ratio BA:BC is constant. In the ellipse this ratio is less than unity, in the parabola equal to unity, and in the hyperbola greater than unity. The ellipse and hyperbola have each two foci, and two corresponding directrixes, and the parabola has one focus and one directrix. In the ellipse the sum of the two lines from any point of the curve to the two foci is constant; that is: AG + GB = AH + HB; and in the hyperbola the difference of the corresponding lines is constant. The diameter which passes through the foci of the ellipse is the major axis. The diameter which being produced passes through the foci of the hyperbola is the transverse axis. The middle point of the major or the transverse axis is the center of the curve. Certain other curves, as the lemniscate and the Cartesian ovals, have points called foci, possessing properties similar to those of the foci of conic sections. In an ellipse, rays of light coming from one focus, and reflected from the curve, proceed in lines directed toward the other; in an hyperbola, in lines directed from the other; in a parabola, rays from the focus, after reflection at the curve, proceed in lines parallel to the axis. Thus rays from A in the ellipse are reflected to B; rays from A in the hyperbola are reflected toward L and M away from B.
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A central point; a point of concentration.
Aplanatic focus. (Opt.) See under Aplanatic.
Conjugate focus (Opt.), the focus for rays which have a sensible divergence, as from a near object; -- so called because the positions of the object and its image are interchangeable.
Focus tube (Phys.), a vacuum tube for R[oe]ntgen rays in which the cathode rays are focused upon the anticathode, for intensifying the effect.
Principal focus, or Solar focus (Opt.), the focus for parallel rays.
Focus \Fo"cus\, v. t. [imp. & p. p. Focused; p. pr. & vb. n. Focusing.] To bring to a focus; to focalize; as, to focus a camer
--R. Hunt.
Douglas Harper's Etymology Dictionary
1640s, "point of convergence," from Latin focus "hearth, fireplace" (also, figuratively, "home, family"), which is of unknown origin. Used in post-classical times for "fire" itself; taken by Kepler (1604) in a mathematical sense for "point of convergence," perhaps on analogy of the burning point of a lens (the purely optical sense of the word may have existed before Kepler, but it is not recorded). Introduced into English 1650s by Hobbes. Sense transfer to "center of activity or energy" is first recorded 1796.
1775 in optics, "bring into focus" (transitive); 1807 in the figurative sense, from focus (n.). Intransitive use by 1864, originally in photography. Related: Focused; focusing; less commonly focussed; focussing.
Wiktionary
n. 1 (context countable optics English) A point at which reflected or refracted rays of light converge. 2 (context countable geometry English) A point of a conic at which rays reflected from a curve or surface converge. 3 (context uncountable photography cinematography English) The fact of the convergence of light on the photographic medium. vb. 1 (context transitive English) To cause (rays of light, etc) to converge at a single point. 2 (context transitive English) To adjust (a lens, an optical instrument) in order to position an image with respect to the focal plane. 3 (context transitive followed by '''on''' or '''upon''' English) To concentrate one's attention. 4 (context intransitive English) To concentrate one’s attention.
WordNet
n. the concentration of attention or energy on something; "the focus of activity shifted to molecular biology"; "he had no direction in his life" [syn: focusing, focussing, direction, centering]
maximum clarity or distinctness of an image rendered by an optical system; "in focus"; "out of focus"
maximum clarity or distinctness of an idea; "the controversy brought clearly into focus an important difference of opinion"
a central point or locus of an infection in an organism; "the focus of infection" [syn: focal point, nidus]
special emphasis attached to something; "the stress was more on accuracy than on speed" [syn: stress]
a point of convergence of light (or other radiation) or a point from which it diverges [syn: focal point]
a fixed reference point on the concave side of a conic section
[also: foci (pl)]
v. direct one's attention on something; "Please focus on your studies and not on your hobbies" [syn: concentrate, center, centre, pore, rivet]
cause to converge on or toward a central point; "Focus the light on this image" [ant: blur]
bring into focus or alignment; to converge or cause to converge; of ideas or emotions [syn: concenter, concentre, focalize, focalise]
become focussed or come into focus; "The light focused" [syn: focalize, focalise] [ant: blur]
put (an image) into focus; "Please focus the image; we cannot enjoy the movie" [syn: focalize, focalise, sharpen] [ant: blur]
[also: foci (pl)]
Wikipedia
FOCUS is a computer programming language and development environment. It is a language used to build database queries, and is regarded as a fourth-generation programming language (4GL). Produced by Information Builders Inc., it was originally developed for data handling and analysis on the IBM mainframe. As newer systems were developed and smaller computers became more powerful, the available platforms for FOCUS were extended to personal computers and in 1997, to the World Wide Web in the WebFOCUS product.
In geometry, focuses or foci (, ), singular focus, are special points with reference to which any of a variety of curves is constructed. For example, one or two foci can be used in defining conic sections, the four types of which are the circle, ellipse, parabola, and hyperbola. In addition, two foci are used to define the Cassini oval and the Cartesian oval, and more than two foci are used in defining an n-ellipse.
Focus is a grammatical category that determines which part of the sentence contributes new, non-derivable, or contrastive information. Focus is related to information structure. Contrastive focus specifically refers to the coding of information that is contrary to the presuppositions of the interlocutor.
Related terms include Comment and Rheme.
Focus is an abstract strategy board game, designed by Sid Sackson and first published in 1964 by Kosmos. The game has been re-published many times since, sometimes under the titles Domination or Dominio. Focus won the 1981 Spiel des Jahres and Essen Feather awards. The game appears in Sackson's A Gamut of Games in the section New Battles on an Old Battlefield.
Focus are a Dutch progressive rock band formed in Amsterdam, The Netherlands in 1969 by Thijs van Leer. The band have undergone numerous formations in its history. Since 2011 it has comprised van Leer on vocals, keyboards, and flute, Pierre van der Linden on drums, Bobby Jacobs on bass, and Menno Gootjes on guitar.
Formed of members of the pit band for the Dutch production of the rock musical Hair, Focus gained popularity following the success of Focus II (1971) which contained the hit single " Hocus Pocus". Their success continued with Focus 3 (1972) and Hamburger Concerto (1974). Following their break up in 1978, Focus reunited in 1985, 1990, and 1999 before reforming in 2002. They continue to tour and release albums.
In 2010, "Hocus Pocus" was used as the theme for Nike's 2010 World Cup commercial Write The Future which renewed interest in the band.
In computing, the focus indicates the component of the graphical user interface which is selected to receive input. Text entered at the keyboard or pasted from a clipboard is sent to the component which has the focus. Moving the focus away from a specific user interface element is known as a blur event in relation to this element. Typically, the focus is withdrawn from an element by giving another element the focus. This means that focus and blur events typically both occur virtually simultaneously, but in relation to different user interface elements, one that gets the focus and one that gets blurred.
The concept is similar to a cursor in a text-based environment. However, when considering a graphical interface, there is also a mouse pointer involved. Moving the mouse will typically move the mouse pointer without changing the focus. The focus can usually be changed by clicking on a component that can receive focus with the mouse. Many desktops also allow the focus to be changed with the keyboard. By convention, the key is used to move the focus to the next focusable component and to the previous one. When graphical interfaces were first introduced, many computers did not have mice, so this alternative was necessary. This feature makes it easier for people that have a hard time using a mouse to use the user interface. In certain circumstances, the arrow keys can also be used to move focus.
Focus is the debut album by Cynic, released September 14, 1993 through Roadrunner Records. A remastered version of the album was released in 2004.
Focus is a jazz album recorded in 1961, featuring Stan Getz on tenor saxophone with a string orchestra. The album is a suite which was originally commissioned by Getz from composer and arranger Eddie Sauter. Widely regarded as a high point for both men's careers, Focus was described by Getz as his favorite of all his recordings. The pair would next collaborate on their soundtrack to the 1965 film Mickey One.
Focus is the third studio release from Souls of Mischief, and the first release on the independent Hieroglyphics Imperium Recordings label. The album was released on April 20, 1998. For over a decade, it was a cassette and LP only release, only available through their website. However, it is now available in digital format, via iTunes and Bandcamp.
Focus is a German weekly news magazine published in Munich and distributed throughout Germany. It is the third-largest weekly news magazine in Germany. It is considered conservative and leans towards economic liberalism.
Focus is a 2001 film, starring William H. Macy, Laura Dern, David Paymer, and Meat Loaf based on a 1945 novel by playwright Arthur Miller.
Focus is a 1945 novel by Arthur Miller which deals with issues of racism, particularly antisemitism. In 2001, a film version, starring William H. Macy, was released.
In geometrical optics, a focus, also called an image point, is the point where light rays originating from a point on the object converge. Although the focus is conceptually a point, physically the focus has a spatial extent, called the blur circle. This non-ideal focusing may be caused by aberrations of the imaging optics. In the absence of significant aberrations, the smallest possible blur circle is the Airy disc, which is caused by diffraction from the optical system's aperture. Aberrations tend to get worse as the aperture diameter increases, while the Airy circle is smallest for large apertures.
An image, or image point or region, is in focus if light from object points is converged almost as much as possible in the image, and out of focus if light is not well converged. The border between these is sometimes defined using a circle of confusion criterion.
A principal focus or focal point is a special focus:
- For a lens, or a spherical or parabolic mirror, it is a point onto which collimated light parallel to the axis is focused. Since light can pass through a lens in either direction, a lens has two focal points—one on each side. The distance in air from the lens or mirror's principal plane to the focus is called the focal length.
- Elliptical mirrors have two focal points: light that passes through one of these before striking the mirror is reflected such that it passes through the other.
- The focus of a hyperbolic mirror is either of two points which have the property that light from one is reflected as if it came from the other.
Diverging (negative) lenses and convex mirrors do not focus a collimated beam to a point. Instead, the focus is the point from which the light appears to be emanating, after it travels through the lens or reflects from the mirror. A convex parabolic mirror will reflect a beam of collimated light to make it appear as if it were radiating from the focal point, or conversely, reflect rays directed toward the focus as a collimated beam. A convex elliptical mirror will reflect light directed towards one focus as if it were radiating from the other focus, both of which are behind the mirror. A convex hyperbolic mirror will reflect rays emanating from the focal point in front of the mirror as if they were emanating from the focal point behind the mirror. Conversely, it can focus rays directed at the focal point that is behind the mirror towards the focal point that is in front of the mirror as in a Cassegrain telescope.
Focus is an encyclopedia first published in Swedish in five volumes 1958–1960, later extended with additional volumes, republished in several editions, and translated to Danish, Norwegian, French, Portuguese, and Spanish. Based on inspiration from the richly illustrated 1947 edition of the American World Book Encyclopedia, the plan for Focus as conceived by Sven Lidman (born 1921) was based on two principles:
- a set of highly instructional and internationally reusable illustrations should be produced first, to which text could be written later in various languages, and
- the basic encyclopedia should be compact (only 3 or 4 volumes) to which specialized add-on volumes from a series (Sports in Focus, This year in Focus, etc.) could be combined ("Kombinationslexikon statt Konversationslexikon"), making it easier to cover different market segments.
Sven Lidman left his previous employer in 1955 and took this new idea to the Swedish publishing house Almqvist & Wiksell, but only after also getting a letter of intent from German publisher Bertelsmann was he able to get his employer started. Being the first richly illustrated encyclopedia in Sweden (and several other countries), the sales were a given success. The idea of only reusing the illustrations failed, as most contracting publishers chose to translate most of the text as well. A fifth volume containing an index, thesaurus and cross-reference was added to the basic encyclopedia, not least because this increased the total "number of entries" from 40,000 (in the main volumes) to 100,000 (in the index), one of the strongest sales arguments for encyclopedias.
Sven Lidman left A&W in 1963 to continue his work in Swedish lexicography elsewhere. His autobiography Uppslagsboken och jag was published in 1987.
Focus is an Italian monthly popular science magazine published in Milan, Italy.
Focus is a national Ukrainian weekly news magazine in Russian language published in Kiev and distributed throughout the country. The base auditory of the magazine are the people of high and above high level of income between 25 and 45 years of age that live in the 40 biggest metropolises of Ukraine. The magazine's motto: "Every detail has a meaning" .
Focus is a Polish scientific monthly magazine published in Warsaw, Poland.
Focus is a 2015 American romantic crime dark comedy- drama film written and directed by Glenn Ficarra and John Requa, starring Will Smith, Margot Robbie, and Rodrigo Santoro.
Focus is the second studio album from the Christian singer-songwriter Holly Starr. The album released on October 2, 2012 via Save the City Records. The producers on the album were Chuck Butler, David Garcia and Christopher Stevens. The album received critical acclamation from music critics, yet it did not get much commercial success because it failed to chart.
Focus is an album by American jazz saxophonist Chico Freeman featuring Arthur Blythe recorded in 1994 and released on the Contemporary label.
"Focus" is a song recorded by American singer Ariana Grande, released on October 30, 2015. Originally intended to be the lead single from her third studio album Dangerous Woman, the song was scrapped from the standard edition track listing, with the track only being included on the Japanese edition of the album. Later, the title track replaced it as the lead single. The song was co-written by Grande, Savan Kotecha, Peter Svensson, and Ilya.
The song was a commercial success, debuting and peaking at number seven on the Billboard Hot 100, becoming Grande's sixth top-ten single and selling 113,000 downloads in its first week. The song received mixed reception from critics who called it a retro, upbeat number to dance to but criticized it for sounding too similar to Grande's top-ten hit "Problem" a year earlier. As of March 2016, "Focus" has sold 425,000 copies in the United States and has been certified platinum by the RIAA. The single won Best Song To Dance To at the 2016 Radio Disney Music Awards.
Usage examples of "focus".
You get older daughters trying to protect younger siblings by doing anything they can to keep the abusive father focused on them.
She glanced round the room again, achingly trying not to focus on Robert and yet helpless to stop herself from focusing on him, from wondering whom he was with.
Greek Revolution and that his own advocacy of the cause would have to focus more on stimulating private American support and stronger popular sympathy for the suffering Greek people.
He had, in fact, crossed the designs of no less a power than the German Empire, he had blundered into the hot focus of Welt-Politik, he was drifting helplessly towards the great Imperial secret, the immense aeronautic park that had been established at a headlong pace in Franconia to develop silently, swiftly, and on an immense scale the great discoveries of Hunstedt and Stossel, and so to give Germany before all other nations a fleet of airships, the air power and the Empire of the world.
He saw Teasle dispersing into triple focus down there, eyes bright, aiming, and he knew there should be no other way.
Quelan tribe has chosen Mandel for their Kiah Master and Akela as his Focus.
Waiting until their attention was focused on the next toss, Alec slipped across to the other side.
In the Solar System, the Amalgams had focused and directed the gravity beams used to tear up the planetary surfaces and launch them into free space.
Now and again the horses caught a whisper of something in the ambient that made all three of them in direct contact with the horses entirely uneasy, it was impossible to see what might be more than three buildings away, and hard to focus up into falling snow to check the roofs.
With any luck at all, you will never focus your glims upon Miss Ames, no matter how illustrious her fortune, or by virtue of whatever scheme your papa and her papa concocted so many years ago.
The solution offered by Amel is not to oppose war but to otherwise channel the energies that give rise to it and educate those people who might become its focus.
Now his gaze focused on the cluster of shipping anchored out in Table Bay.
They would share authority, she focused on Argali and he on Ironbridge.
And they were hard at work, but now equipped with a smaller, better focused version of the Argand lamp.
Joe relaxed and focused his yellow eyes questioningly on Asey, who shrugged.