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  Indian J Med Microbiol
 

Figure 1: Photographs of the Point-of-Use Quality Assurance tool using a 10.1” Samsung Galaxy Tab A tablet under different lighting conditions. The device has a resolution of 1920 × 1200 pixels and a color depth of 16 million, with brightness set to maximum. Top left: unlit indoor environment. Top right: Artificially, indirectly lit indoor environment. Bottom left: Artificially, directly lit (LED lamp). Bottom right: Outdoor environment. All pictures use the same target letters: F, W, N, and T. The environment has a noticeable impact on the visibility of the letters

Figure 1:  Photographs of the Point-of-Use Quality Assurance tool using a 10.1” Samsung Galaxy Tab A tablet under different lighting conditions. The device has a resolution of 1920 × 1200 pixels and a color depth of 16 million, with brightness set to maximum. Top left: unlit indoor environment. Top right: Artificially, indirectly lit indoor environment. Bottom left: Artificially, directly lit (LED lamp). Bottom right: Outdoor environment. All pictures use the same target letters: F, W, N, and T. The environment has a noticeable impact on the visibility of the letters