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单词 light pen
释义
light pen
noun[C]
(alsolightpen)
uk
/ˈlaɪt ˌpen/us
/ˈlaɪt ˌpen/
a pen-shapeddevicefor makinglines, writing, etc.appearon acomputerscreen:
You candrawon thetabletscreenusing alightpen.
Thepaduses a lightpen to "write"datadirectlyonto thescreen.
a pen-shapeddeviceused forreadingbarcodes:
读码器，条形码扫描器
Youaccessthesystemsimplybymovingalightpenacrossthebarcode.
More examples
  • Lightpensarerarelyseenthesedays, now thattouchscreensandgraphicstabletsarewidelyavailable.
  • Thedevicecame with a child-sizemouse, acolourprinterand alightpenfordrawing.
  • You canhighlightone of theoptionsbytappingthetouchscreenor with the lightpen.
  • Instead of usingchalkormarkers,studentsanswerquestionsusinglightpensor hand-held clickers.
SMART Vocabulary: related words and phrases
Computer hardware
  • 3-D printer
  • beamer
  • blackberry
  • brick
  • bubblejet
  • card reader
  • data projector
  • gamepad
  • graphics card
  • hard drive
  • optically
  • palmtop
  • parallel port
  • patch
  • patch intosomething
  • pen drive
  • phablet
  • plug and play
  • printer
  • whiteboard
See more results »
(Definition oflight penfrom theCambridge Advanced Learner's Dictionary & Thesaurus© Cambridge University Press)
light pen
noun[C]
uk
/ˈlaɪt ˌpen/us
/ˈlaɪt ˌpen/
a pen-shapeddeviceused forreadingbarcodes
读码器，条形码扫描器

light pen| Business English

light pen
noun[C]
IT
uk
us
a pen-shapedobjectthat usesbeamsoflighttoreadbarcodes(=smallrectangularpatternsofprintedlinesthatstoredata)or that you use totouchacomputerscreeninordertochooseinformation:
Outgoinginventorycan bequicklycheckedwithlightpensconnectedto eachterminal.
(Definition oflight penfrom theCambridge Business English Dictionary© Cambridge University Press)

Examplesoflight pen

light pen
The endocardial contour of an end-systolic and an end-diastolic frame was digitized with alightpenon an electronic drawing board.
From theCambridge English Corpus
The process is carried out by means of alightpenwhich reads a bar code which transmits information on to a magnetic tape.
From the
Hansard archive
Example from the Hansard archive. Contains Parliamentary information licensed under theOpen Parliament Licence v3.0
Alightpendetects a change of brightness of nearby screen pixels when scanned by cathode ray tube electron beam and communicates the timing of this event to the computer.
From
Wikipedia
Creatives commons iconThis example is from Wikipedia and may be reused under a CC BY-SA license.
In that system, the user could draw using alightpenon a screen and manipulate graphic primitives such as arcs and lines.
From theCambridge English Corpus
Terminals provided data entry capability into mainframes as well aslightpenpointing and selection before the mouse was in use.
From
Wikipedia
Creatives commons iconThis example is from Wikipedia and may be reused under a CC BY-SA license.
Thelightpenitself had a small photoelectric cell in its tip.
From
Wikipedia
Creatives commons iconThis example is from Wikipedia and may be reused under a CC BY-SA license.
The computer had a wide selection of ports, including one for alightpen.
From
Wikipedia
Creatives commons iconThis example is from Wikipedia and may be reused under a CC BY-SA license.
The other system, still in use in 2004, is based on a magnetic card and a voting machine with alightpen.
From
Wikipedia
Creatives commons iconThis example is from Wikipedia and may be reused under a CC BY-SA license.
Thelightpenallows the user to draw, to create images and to indicate, on the screen.
From
Wikipedia
Creatives commons iconThis example is from Wikipedia and may be reused under a CC BY-SA license.
The right monitor, which played the preview video, was used by the editor to make cuts and edit decisions using alightpen.
From
Wikipedia
Creatives commons iconThis example is from Wikipedia and may be reused under a CC BY-SA license.
The 6845 had support for alightpen, an alternative to a computer mouse.
From
Wikipedia
Creatives commons iconThis example is from Wikipedia and may be reused under a CC BY-SA license.
Thelightpenfound use during the early 1980s.
From
Wikipedia
Creatives commons iconThis example is from Wikipedia and may be reused under a CC BY-SA license.
Another innovative feature for that time was the user interface combining a keyboard with a monitor andlightpenfor correcting texts and drawing on screen.
From
Wikipedia
Creatives commons iconThis example is from Wikipedia and may be reused under a CC BY-SA license.
Another innovative feature for that time was the user interface combining a keyboard with a monitor andlightpenused for correcting texts and drawing on screen.
From
Wikipedia
Creatives commons iconThis example is from Wikipedia and may be reused under a CC BY-SA license.
As the tip of thelightpenmakes contact with the screen, it sends a signal back to the computer containing the coordinates of the pixels at that point.
From
Wikipedia
Creatives commons iconThis example is from Wikipedia and may be reused under a CC BY-SA license.
These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.
#https://dictionary.cambridge.org//dictionary/english/light-pen##
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更新时间：2024/12/28 10:56:06