English version

focus in Optics topic

From Longman Dictionary of Contemporary Englishfocusfo‧cus1 /ˈfəʊkəs $ ˈfoʊ-/ ●●○ S3 W2 AWL verb (focused or focussed, focusing or focussing)  1 give attention to something [intransitive, transitive]ATTENTION to give special attention to one particular person or thing, or to make people do this syn concentratefocus on He needs to focus more on his career.focus your attention/mind/efforts on something She tried to focus her mind on her work.focus (somebody’s) mind/attention (on something) (=make people give their attention to something) We need to focus public attention on this issue.GrammarYou say: We focused on two main issues. Don’t say: We focused in two main issues.2 camera/telescope [intransitive, transitive]HPO to point a camera or telescope at something, and change the controls slightly so that you can see that thing clearlyfocus on She turned the camera and focussed on Martin’s face.focus something on something He focused his binoculars on the building opposite.3 eyes [intransitive, transitive]HPOHBA if your eyes focus, or if you focus your eyes, you look at something and can see it clearlyfocus on All eyes focussed on her. His eyes were focussed straight ahead.4 light [transitive]HPO if you focus beams of light, you aim them onto a particular place→ See Verb table
Examples from the Corpus
focusIt took a long time to focus and get rid of the swimming water.Any work undertaken on an individual basis should always focus attention on the broader social context in which the individual lives.By which is meant that they have developed their ability to focus both senses and mind upon a thought process.He stared out the window for a moment, trying to focus his thoughts.It warns policymakers not to get tangled up with averages but to focus instead on increments.The companies Uunet and Digex, for example, have dropped consumers to focus on business markets.At least, he said, he could focus on his other math class.Research will focus on the people living in the estates in east Middlesbrough.In the way that you use a camera, you can focus your mind either on positive or negative factors.focus (somebody’s) mind/attention (on something)Eating behaviour is disturbed and must be the focus of explicit attention.It is as if within the wider panorama particular topics become a focus of especial attention.The truth was that by 1988 the television audience had entirely replaced the convention delegates as the focus of attention.In the way that you use a camera, you can focus your mind either on positive or negative factors.I believe that the focus of attention is shifting from curriculum content to how best to teach science.The firm eventually settled on a strategy of attempting to focus public attention on its superior sales staff and customer service.These might well involve those selective-attention circuits passing through the left thalamus that focus attention on verbal information such as object names.Where absenteeism does become a focus of management attention, there are very tangible improvements.