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DLPR410 датащи(PDF) 32 Page - Texas Instruments |
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DLPR410 датащи(HTML) 32 Page - Texas Instruments |
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32 / 53 page ![]() TP1 TP5 TP3 (TP2) TP3 2X 16.7 TP4 Window Edge (4 surfaces) 4.5 16.1 TP1 TP2 Array TP5 TP4 2X 12.0 32 DLP650LNIR DLPS136 – NOVEMBER 2018 www.ti.com Product Folder Links: DLP650LNIR Submit Documentation Feedback Copyright © 2018, Texas Instruments Incorporated Optical Interface and System Image Quality Considerations (continued) 7.6.4 Illumination Overfill The active area of the device is surrounded by an aperture on the inside DMD window surface that masks structures of the DMD device assembly from normal view. The aperture is sized to anticipate several optical operating conditions. Overfill light illuminating the window aperture can create artifacts from the edge of the window aperture opening and other surface anomalies that may be included in the projected image. To reduce DMD heating when applying high incident flux levels to the DMD in high power applications, design the illumination optics to limit light flux incident anywhere outside the active array to nearly zero percent. For lower incident power levels, depending on the optical architecture of a particular system, the acceptability levels of overfill light must be determined by the user as it relates to a specific application. In most cases it is almost always held to zero. 7.7 Micromirror Temperature Calculations Figure 20. DMD Thermal Test Points |
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