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MIRA130 Datasheet(PDF) 36 Page - OSRAM GmbH |
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MIRA130 Datasheet(HTML) 36 Page - OSRAM GmbH |
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36 / 52 page  Document Feedback Mira130 Sensor Operation Datasheet • PUBLIC DS000715 • v6-00 • 2023-Aug-09 51 │ 35 Figure 41: Normal and HDR Modes Under normal mode, as shown in Figure 41, the pixel output value is linear proportional to the exposure time. The maximum exposure time without causing pixel saturation for a given light intensity of an image source is L1. Under HDR mode, as shown in the same figure, for the same light intensity of the image source, the sensitivity of the pixel in HDR mode is the same as normal mode before the pixel output value reaching a HDR point, but is reduced after the HDR point. Hence, the maximum exposure time without causing saturation is L2, implying a higher dynamic range. The dynamic range can be increased by 20 × log (L2 / L1). Figure 42: HDR Mode Timing L1 L2 Exposure Pixel Output Saturation HDR Point Normal Mode-Linear response HDR Mode- Non-linear response time start exposure exposure end HDR point HDR Control Mode {3e31,3e32} {3e01,3e02} |
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