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Which of the digital imaging systems uses a laser to read the image data?
Wiki User
∙ 10y ago
computed radiography
Wiki User
∙ 10y ago
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Which phase of the laser printing process includes applying toner to the latent image?
Developing Phase
What is a USB laser pointer?
a USB laser pointer is simply a laser pointer powered by the USB socket.
What technology does the laser printer use to print document?
Most consumer inkjet printers, from companies including Canon, Hewlett-Packard, and Lexmark (but not Epson), use print cartridges with a series of tiny chambers each containing a heater, all of which are constructed by photolithography. To eject a droplet from each chamber, a pulse of current is passed through the heating element causing a rapid vaporisation of the ink in the chamber to form a bubble, which causes a large pressure increase, propelling a droplet of ink onto the paper (hence Canon's tradename of Bubble Jet for its technology). The ink's surface tension, as well as the condensation and thus contraction of the vapor bubble, pulls a further charge of ink into the chamber through a narrow channel attached to an ink reservoir.Laserjet printers employ a xerographic printing process (i.e. electrical transfer of an image's negative) but differ from analog photocopiers in that the image is produced by the direct scanning of a laser beam across the printer's photoreceptor. In total, there are six steps to the printing process: cleaning, charging, writing (or exposing), developing, transferring, and fusing.
What does a CD do?
Want your answer here you have it.Like gramophone records, the information on optical discs is recorded on a spiral track. However, with a CD the laser starts reading the disc from the inside ring (table of contents) and ends up on the outside. When play back starts, a laser beam shines on the ridges and lands on the data membrane layer. If you look at the image on the right you can see the data layer moving in gray.During playback, the number of revolutions of the disc decreases from 500 to 200 rpm (revolutions per minute) to maintain a constant scanning speed. The disc data is converted into electrical pulses (the bit stream) by reflections of the laser beam from a photoelectric cell.When the laser beam strikes "land", the beam is reflected onto a photoelectric cell. When it strikes a "ridge", the photocell will receive only a weak reflection. Thus the photoelectrical cell receives series of light pulses corresponding to the ridges and lands in the disc. These light pulses are the foundation of binary 'digital' data. A simple substitution for the weak signal "0" and the in-focus signal "1" results in a pure digital playback without alteration, every time, without failure or degradation.In music playback, a D/A-Converter (digital to analogue converter; DAC) converts the series of pulses (binary coding) from a decimal code to a waveform, which can then be processed for amplification. The longer the decimal code, the better the sound. Current standard CD audio is 44,100 pulses per second and 16 bit (decimal places) in digital word length. Thus a 24 bit system sounds all that much better, in fact DVD audio is set to allow 24 bit AND pulse at 97,000 times per second!
What is a computer projector?
A computer projector is a kind of an output device, used to display image on a projection screen. It receives a video signal from computer and projects an image using a lens system.Main types of computer projectors are:LCD projectors,DLP projectors,LED projectorsHybrid ( LED and Laser diode) projectors.
Is it possible for some laser printers to not need an imaging drum to work?
No all laser printers require an imaging drum to in order for the laser to write the image on.
What is the purpose of an imaging drum?
An imaging drum is present in laser printers. The imaging drum receives the image sent by the laser in the printer. The drum holds the electrostatic charge to transfer the toner ink to paper.
What has the author David A Boas written?
David A. Boas has written: 'Handbook of biomedical optics' -- subject(s): Optics and Photonics, Photochemistry, Imaging systems in medicine, Methods, Diagnostic Imaging, Laser Therapy, Low-Level, Handbooks, manuals, Digital techniques, Diagnostic imaging
What uses a beam of light to create a digital image from artwork such as photos and drawings?
laser printer
Where can one find information on laser imaging?
You can find information on laser imaging on websites dealing with laser scanning and holography. Depending on whether you are interested in 3d imaging or printer (2d) you will have to choose accordingly.
What service does Laser Soft provide?
Laser Soft is a company which provides computer software for scanning and digital imaging. It was founded in 1986 and they released their most popular software SilverFast in 1996. It currently remains as one of the top softwares.
Which laser is used in laser printer?
Laser printing is an electrostatic digital printing process that rapidly produces high quality text and graphics by passing a laser beam over a charged drum to define a differentially charged image. It employ a xerographic printing process.
What is an example of something that uses a semiconductor?
diodes, rectifierstransistors (unijunction, bipolar junction, field effect)silicon controlled rectifierssolar cellsphotosensors (cadmium sulfide, photodiode, phototransistor)light sources (light emitting diode, LASER diode)integrated circuits (analog, digital, hybrid, charge coupled device camera image sensor, etc.)imaging drum in a xerographic photocopier or LASER printeretc.
Where is it possible to learn about laser systems?
You can learn about laser systems at Universal Laser Systems, Palomar, Laser Learning, Laser Star, E Science News, Lensar, CMS Laser, How Stuff Works and Telesis.
What is graphical image?
Graphical image means creating image with some unique concepts and also includes some graphical effects. It's not photo capture image or something like that but it's generated with a graphic tool and customized as per specific requirement.
What is the three-dimensional image produced by laser light?
the three-dimensional image produced by laser light is a hologram
What is the three dimensional image produced by laser light?
the three-dimensional image produced by laser light is a hologram
