focal point

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focal point

the point on the axis of a lens or mirror to which parallel rays of light converge or from which they appear to diverge after refraction or reflection

focal point

(focus) See focal length.

focal point

[′fō·kəl ‚pȯint]
(optics)
The point to which rays that are initially parallel to the axis of a lens, mirror, or other optical system are converged or from which they appear to diverge. Also known as principal focus.
References in periodicals archive ?
Ann Henson, vice president of curriculum and instruction for CompassLearning, says the Focal Points are a point of reference to be used "to prioritize where we will add more depth to existing concepts.
My next attempt at creating an unusual focal point was to plant the hollowed out trunk of an old apple tree at the centre of a boring lawn to provide a novel container for a white rose, until one winter it fell apart.
Focal Points include a customized Focal Point News Page with six CMP news stories focused on the granular topic alongside an introductory paragraph about the vendor and five links to the vendor's content.
New brain-imaging technologies are providing better pictures of epileptic focal points, says Brian Litt, a neurologist and biomedical engineer at the University of Pennsylvania in Philadelphia.
A focal point of each wing is a three-story atrium.
b) placing a focal point at one end and closing the vista at the other, of what was once a ceremonial route
A person can transform a treasured object or picture that might get lost among the clutter on a tabletop into a room's focal point simply by putting a frame around it," Danziger explains.
Materials and methods need to be developed for educators to put the Focal Points in context and teach all the skills, strategies and algorithms essential to developing mathematical fluency and mastery.
High-rise buildings specially adapted to the regional climate and open-air lifestyle would punctuate the pattern, providing urban landmarks and focal points for more intensive activities.
Water Quality monitoring is one of the main focal points of the Trinity watershed program.
Contract notice: Delivery of IT and other equipment on the project exchange of situational picture of neighboring sections of the external border between the romanian and bulgarian national focal points.
By establishing Focal Points for prekindergarten to grade 8, the "big ideas" or most important topics are set for students to move successfully from one grade to the next, with the emphasis on problem solving, reasoning, communication, making connections, and designing and analyzing representations along the entire continuum.