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1. : a point at which rays (as of light, heat, or sound) meet or from which they draw apart or appear to draw apart. especially : the point at which an image is formed by a mirror, lens, or optical system. 2. a. : focal length. b. : adjustment (as of the eye or binoculars) for clear vision. bring into focus.
Mar 14, 2019 · How and where we focus our attention, and what the brain attends to vs. treating as background information, is a big question in neuroscience. Thanks to work from researchers, including Robert Desimone, we understand quite a bit about how this works in the visual system in particular.
In geometrical optics, a focus, also called an image point, is a point where light rays originating from a point on the object converge. [1] Although the focus is conceptually a point, physically the focus has a spatial extent, called the blur circle.
Focus definition: a central point, as of attraction, attention, or activity. See examples of FOCUS used in a sentence.
Sep 11, 2019 · Earthquakes originate at a point called the focus (plural foci). From this point, energy travels outward in different types of waves. The place on the Earth’s surface directly above the focus is called the epicenter (Figure 13.2).
Jun 11, 2018 · (pl. fo·cus·es or fo·ci / ˈfōˌsī; -ˌkī / ) 1. the center of interest or activity: this generation has made the environment a focus of attention. ∎ an act of concentrating interest or activity on something: our focus on the customer's requirements. ∎ Geol. the point of origin of an earthquake.
Jan 12, 2023 · Focus is an important component of scientific research and learning. It is defined as the ability to concentrate on a particular topic or task, excluding any distractions or other external factors that might interfere with the goal.
