focal point

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focal point

n.
See focus.

focal point

n
1. (General Physics) Also called: principal focus or focus 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
2. a central point of attention or interest

fo′cal point`


n.
1. either of two points on the axis of a mirror, lens, or other optical system, on which rays converge or from which they deviate.
2. the center of activity or attention.
3. the central or principal point of focus.
[1705–15]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.focal point - a point of convergence of light (or other radiation) or a point from which it diverges
point - the precise location of something; a spatially limited location; "she walked to a point where she could survey the whole street"
2.focal point - a central point or locus of an infection in an organismfocal point - a central point or locus of an infection in an organism; "the focus of infection"
point - the precise location of something; a spatially limited location; "she walked to a point where she could survey the whole street"
focal infection - bacterial infection limited to a specific organ or region especially one causing symptoms elsewhere
3.focal point - the concentration of attention or energy on something; "the focus of activity shifted to molecular biology"; "he had no direction in his life"
engrossment, immersion, absorption, concentration - complete attention; intense mental effort
particularism - a focus on something particular
Translations

focal point

n (fig) → centro; (of lens, mirror) → punto focale
References in periodicals archive ?
In theory as hand magnifiers are designed to be used with the object placed at the anterior focal point of the magnifier, parallel rays of light emerge and distance vision spectacles are advised.
In order to overcome the issue of placing the object accurately at the anterior focal point of the magnifying lens, the lens can be mounted in a stand to fix the position.

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