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Topic: Digital Micromirror Device

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	USATODAY.com - A camera's worth a single pixel (Site not responding. Last check: 2007-10-26)
		Digital cameras are stuffed with light-sensing elements called charged-coupled devices, set up in grids to take pictures from the light coming into the camera's lens.
		The camera uses a so-called digital micromirror device to randomly alter where the light hitting the single-pixel originates from within the camera's field of view as it builds the image.
		But the digital micromirror device can be sped up to collect millions of pixels in a second, which should speed things up.
	www.usatoday.com /tech/science/columnist/2006-09-30-single-pixel_x.htm (734 words)

	Active yoke hidden hinge digital micromirror device - Patent 5535047
		The DMD device having a yoke suspended over a pair of address electrodes, and supporting an elevated mirror extending over a second pair of address electrodes, achieves a significant increase in the attractive area between address electrodes and the pivotable structure, namely, the yoke and the mirror.
		All four of these performance parameters are substantially improved by the present invention over previous generation DMD devices due to the design of the yoke 32 generating an electrostatic attractive force with the underlying address electrodes, in combination with electrostatic attractive forces being generated between the elevated mirror and the elevated address electrodes.
		The implications of the DMD device of the present invention includes greater address margin, as discussed, less susceptibility to address upset, lower reset voltage requirements, and higher switching speeds which is critical in the operation of the device as a spatial light modulator.
	www.freepatentsonline.com /5535047.html (7161 words)

	Digital Light Processing
		Digital Light Processing (DLP) is a technique used to project images and is based around a specialised optical semiconductor chip a Digital Micromirror Device (DMD), developed by Texas Instruments (TI)_ Today, DLP powers general purpose conference room projectors, and over the years, has spawned a new category of small, ultra portable mobile projectors.
		Since a DMD is an amalgamation of an optical device with a semiconductor controlling base, it is called an Optical Semiconductor.
		The arrangement of the light source, with respect to the DMD chip, is such all micro mirrors that are in the "ON" state reflect the incident light to the pupil of the projecting lens, whereas the micromirrors in 'OFF' state reflect the incident light on to a light absorber.
	www.satellitetvref.com /digital-light-processing.html (1052 words)

	Digital Micromirrors take Tinsel Town by Storm
		Digital light is projected to the audience where each viewer interprets the sensation of digital 1s and 0s as a subtle spectrum of colors varying in hue, brightness, and saturation.
		Once the digital bursts of 1s and 0s emanating from the DLP projector have been cleverly manipulated to provide enough digital depth (bits per primary color), even the experts have a hard time telling the master film footage from a digital duplication.
		Their hardy DMD microchip has been tested at more than 100,000 hours and engineering improvements to the DLP projection system have ensured that the overall system is worthy of these robust little digital microchips.
	www.spie.org /web/oer/march/mar99/micromirrors.html (1465 words)

	Device - Search Results - MSN Encarta (Site not responding. Last check: 2007-10-26)
		Device, general term describing any compositional technique used to produce a particular musical effect, which may be melodic, rhythmic, structural,...
		Device Driver, in computer science, a software component that permits a computer system to communicate with a device.
		Pointing Device, in computer science, an input device used to control an on-screen cursor for such actions as “pressing” on-screen buttons in...
	uk.encarta.msn.com /Device.html (153 words)

	Digital micromirror device mounting system patent invention
		1 is a schematic illustration of an embodiment of a projection device, including a digital micromirror device coupled to a circuit board within the optical engine of the projection device.
		Projection device 10 may be a projector adapted to project an image onto a display surface such as a screen, a wall, or other viewing surface or area.
		Maintaining temperatures within the device at operating levels thus may prevent the device from malfunctioning and/or increase the lifespan of components and parts of the projection device.
	www.freshpatents.com /Digital-micromirror-device-mounting-system-dt20051208ptan20050270747.php?type=description (2105 words)

	Digital micromirror device having a window transparent to ultraviolet (UV) light - usptntsrv
		Current, commercially-available DMD devices are designed to deliver visible wavelengths (from 400-nm to 750-nm), however, and cannot be used to deliver a large range of UV energy because of their protective window, which environmentally guards the micromirrors.
		However, it is directly compatible with the DMD approach due to the digital nature of the wavefront sensor analysis.
		Moreover, with the DMD device, the light that strikes the mirrors must make two passes through the window; that is, the light must travel through the window first, reflect from the mirrors and travel through the window again to exit the device.
	www.uspatentserver.com /685/6859311.html (3648 words)

	Yamaha Canada Music \| Home Audio/Video
		The Digital Micromirror Device (DMD) consists of hundreds-of-thousands of tiny actuated mirrors, each of which is responsible for directing a single pixel to the screen.
		The DMD chip is used in conjunction with a digital video or graphic signal, a light source, and a projection lens.
		A DMD panel's micromirrors are mounted on tiny hinges that enable them to tilt either toward the light source (ON) or away from it (OFF), corresponding to a light or dark pixel on the projection surface.
	www.yamaha.ca /av/technology/DLP.jsp (996 words)

	Digital Micromirror Device
		A Digital Micromirror Device, or DMD is an optical semiconductor that is the core of DLP™ projection technology, and was invented by Texas Instruments in 1987.
		A DMD chip has on its surface several hundred thousand individually movable microscopic mirrors arranged in a rectangular array.
		To produce greyscales, the mirror is toggled on and off very quickly, and the ratio of on time to off time determines the shade produced (see pulse width modulation).
	www.xasa.com /wiki/en/wikipedia/d/di/digital_micromirror_device.html (161 words)

	Digital Television Glossary
		Digital technology developed by Faroudja to accurately convert and display movie pictures filmed at 24 frames per second on the standard framerate for television broadcasts of 30 frames per second.
		Technology developed by Texas Instruments that is based on a digital micromirror device (a chip with millions of microscopic, hinged mirrors).
		Dolby Digital is a 6-channel standard corresponding to a center channel, two side front channels, two rear side channels and a subwoofer channel.
	www.flat-screen-tv.info /digital-television-glossary-1.htm (1332 words)

	TI Demonstrates Digital Micromirror Device (DMD) Technology
		Texas Instruments has demonstrated a fully digital prototype of a high-definition display system based on its digital micromirror device (DMD) technology.
		This demonstration shows that TI's DMD technology has the potential to make quality projection television a reality--implementing either today's standards or the proposed high-definition standards that are expected to be implemented later this decade.
		Each high-definition DMD measures approximately 1 1/2 inches x 3/4 inches (37 mm x 22 mm) and is configured as a 2048 x 1152 array.
	www.ti.com /corp/docs/press/company/1994/405asc.shtml (942 words)

	Repair of digital micromirror device having white defects - Patent 5617242
		The digital micromirror device (DMD) is a micromechanical device, which may be used as a reflective spatial light modulator.
		A typical DMD has mirrors that are 16 micrometers wide on a pitch of 17 micrometers, and that rotate plus or minus 10 degrees from a flat (non-tilted) position.
		As stated in the Background, where the DMD is used in an image display system, these are "white defect" mirror elements, whose effect on the final image can be perceptible by the viewer as a bright spot.
	www.freepatentsonline.com /5617242.html (1986 words)

	Online Encyclopedia and Dictionary - Digital Micromirror Device
		A DMD chip has on its surface several hundred thousand microscopic mirrors arranged in a rectangular array that corresponds to the pixels in the image to be displayed.
		To produce greyscales, the mirror is toggled on and off very quickly, and the ratio of on time to off time determines the shade produced (binary pulsewidth modulation).
		Tests have also shown that the hinges cannot be damaged by normal shock and vibration, since it is absorbed by the DMD superstructure.
	www.fact-archive.com /encyclopedia/Digital_Micromirror_Device (520 words)

	21st-DLP-Digital Light Processing
		The DMD accepts electrical words representing gray levels of brightness at its input and outputs optical words, which are interpreted by the eye of the observer as analog brightness levels.
		The inherent contrast ratio of the DMD is limited by light diffraction from the mirror edges, from the underlying substrate,and from the mirror via (the metallized hole in the middle of the mirror that acts as the mirror support post, as shown in Figure 4).
		The digital light switch is reflective and has a high fill factor that results in high optical efficiency at the pixel level and low pixelation effects in the projected image.
	www.vxm.com /TIDLP.html (6954 words)

	Photonics.com Printer Friendly View
		DMDs, which are fabricated by Texas Instruments and today used primarily in digital televisions and projectors, are devices capable of converting digital information to light and vice versa.
		In the single-pixel camera, the image from the lens is shined onto the DMD and bounced from there though a second lens that focuses the light reflected by the DMD onto a single photodiode.
		In the single-pixel camera, the image from the lens is shined onto a digital micromirror device, or DMD, and bounced from there though a second lens that focuses the light reflected by the DMD onto a single photodiode.
	www.photonics.com /printerFriendly.aspx?contentID=84537 (874 words)

	What is DLP Technology for Video Projectors and TV?
		A DMD panel's micromirrors are mounted on tiny hinges that enable them to tilt either toward the light source in a DLP projection system (ON) or away from it (OFF)-creating a light or dark pixel on the projection surface.
		Each DMD chip is dedicated to one of these three colors; the colored light that each micromirror reflects is then combined and passed through the projection lens to form a single pixel in the image.
		Digital MicroMirror Deviceor DMD consists of hundreds-of-thousands of tiny actuated mirrors, each of which is responsible for directing a single pixel to the screen.
	www.avdeals.com /classroom/what_is_dlp.htm (1361 words)

	Television Discovers Digital Micromirrors
		The stretch between this early work and his eventual development of the DMD was a broad one filled with both setbacks and surprises along the way.
		It was almost pure coincidence that this early design, named the "Deformable Mirror Device," should be abbreviated by the same initials as Hornbeck's later, Emmy Award-winning DMD, since the original, analog-based DMD has almost nothing in common with the digital technology of the later invention.
		In 1987, replacing the analog approach with a skeptically regarded, digitally based concept, the first Digital Micromirror Device was born.
	www.spie.org /web/oer/october/oct98/tv.html (778 words)

	EETimes.com - TI fellow on DLP: We did it with mirrors
		In addition to advancing the state of the art for digital cinema, front projectors and HDTV, Hornbeck's MEMS micromirror is enabling 3-D metrology systems, confocal microscopes that eliminate the out-of-focus "haze" normally seen around fluorescent samples, and holographic storage systems that write data in three dimensions instead of just two.
		Instead of continuing to develop analog MEMS micromirrors that depended upon a delicate balance between electrostatic attractive forces and the restoring forces of a flexure, I developed a micromirror that would flip between two digital states, where contact was made to stop the micromirror in the positive and negative directions.
		DMD is naturally suited to these applications because of its ability to take the heat loads from very bright projection lamps.
	eetimes.com /issue/mn/showArticle.jhtml?articleID=197000220 (1744 words)

	BBC NEWS \| Technology \| Single-pixel camera takes on digital
		Although a digital camera picture may contain many millions of pixels, most photos can be described with far fewer because there is a lot of redundant or duplicate information in an image.
		This digital micromirror device, as it is known, consists of a million or more tiny mirrors each the size of a bacterium.
		As the light passes through the device, the millions of tiny mirrors are turned on and off at random in rapid succession.
	news.bbc.co.uk /1/hi/technology/6263551.stm?lsf (582 words)

	2. : Digital Micromirror Device Based Microstereolithography for Micro Structures of Transparent Photopolymer and ...
		Digital Micromirror Device Based Microstereolithography for Micro Structures of Transparent Photopolymer and Nanocomposites
		Furthermore, micro parts were also fabricated in nanocomposites, which were obtained by ultrasonic mixing of the transparent photopolymer and nano-sized ceramic particles.
		High quality micro models fabricated by this novel process could be used for micro scale investment casting, tooling, devices, and medical applications.
	home.att.net /~edgrenda2/sf03/sf03_2.htm (238 words)

	Computer Graphics : Displays : 15 / 30 : Digital Micromirror Devices (DMDs)
		By using a color filter system and by varying the amount of time each of the DMD™ mirror pixels is on, a full-color, digital picture is projected onto the screen.
		Digital Micromirror Device: an array of semiconductor-based digital mirrors that precisely reflect a light source for projection display and hard-copy applications.
		Rather than displaying digital broadcast signals as analogue signals, a DMD directs the digital signal directly to your screen.
	escience.anu.edu.au /lecture/cg/Display/DMD.en.html (287 words)

	Digital Micromirror Device (Site not responding. Last check: 2007-10-26)
		DLP™ technology is based on an optical semiconductor called a Digital Micromirror Device, or DMD computer chip which was invented in 1987 by Texas Instruments.
		The DMD is basically an extremely precise light switch that enables light to be modulated digitally via millions of microscopic mirrors arranged in a rectangular array.
		A DMD system can be made up of a single chip or 3 chips, resulting in even greater color reproduction.
	www.mywiseowl.com /articles/Digital_Micromirror_Device (209 words)

	[No title]
		The microstructure of the mirrors on the DMD, as diagrammed in Figures 3 and 4, is built up by several sequences of deposition and etching of materials on typical silicon wafers.
		One drawback of having a DMD array exposed air is that it collects dust very easily, especially when the chip is hooked up to a voltage, which will be discussed more in detail later.
		A DMD is the type of sample that is ideal for vivid colorization because it has very distinct parts.
	www.optics.rochester.edu /workgroups/cml/opt307/spr05/john (1478 words)

	DLP™ - The Better Projection Technology - PLUS Vision Corp. - Digital Presentation Projectors
		Digital Light Processing™ technology ensures that every pixel on your projected image gets exactly the same amount of light, there is no fading around the edges of the screen, and colors look sharp.
		The DMD device acts as a light switch consisting of up to 1.3 million microscopic mirrors, each of which is able to tilt back and forth (on or off) at up to 5,000 times per second.
		When the DMD panel is coordinated with a lamp, color wheel and projection lens, these tilting mirrors combine to reflect a seamless digital image onto a presentation wall, movie screen, or television screen.
	www.plus-america.com /papers.html (948 words)

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