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Digital Light Processing
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Digital Light Processing : ウィキペディア英語版
Digital Light Processing

Digital Light Processing (DLP) is a display device based on optical micro-electro-mechanical technology that uses a digital micromirror device. It was originally developed in 1987 by Dr. Larry Hornbeck of Texas Instruments. While the DLP imaging device was invented by Texas Instruments, the first DLP-based projector was introduced by Digital Projection Ltd in 1997. Digital Projection and Texas Instruments were both awarded Emmy Awards in 1998 for the DLP projector technology. DLP is used in a variety of display applications from traditional static displays to interactive displays and also non-traditional embedded applications including medical, security, and industrial uses.
DLP technology is used in DLP front projectors (standalone projection units for classrooms and business primarily), DLP rear projection television sets, and digital signs. It is also used in about 85% of digital cinema projection, and in additive manufacturing as a power source in some printers to cure resins into solid 3D objects.〔(【引用サイトリンク】url=https://thre3d.com/how-it-works/light-photopolymerization/digital-light-processing-dlp )
Smaller "pico" chipsets are used in mobile devices including cell phone accessories and projection display functions embedded directly into phones.
==Digital micromirror device==
(詳細はDigital Micromirror Device (DMD). These mirrors are so small that DMD pixel pitch may be 5.4 µm or less.〔(【引用サイトリンク】Texas Instruments "> url=http://www.ti.com/product/dlp3010 )〕 Each mirror represents one or more pixels in the projected image. The number of mirrors corresponds to the resolution of the projected image (often half as many mirrors as the advertised resolution due to wobulation). 800×600, 1024×768, 1280×720, and 1920×1080 (HDTV) matrices are some common DMD sizes. These mirrors can be repositioned rapidly to reflect light either through the lens or onto a heat sink (called a ''light dump'' in Barco terminology).
Rapidly toggling the mirror between these two orientations (essentially on and off) produces grayscales, controlled by the ratio of on-time to off-time.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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