DSLR Autofocus Sensor
A close-up view of the light sensor employed by the phase detection autofocus system in the DSLR camera I took apart after its shutter failed. The horizontal and vertical rows of dark rectangles are the light-sensitive elements. Horizontal rows detect vertical edges in the scene, and vertical rows detect horizontal edges.
The 5 mm scale bar drawn at the bottom of the frame shows the size of the sensor chip. The resolution of the 4k version of this photo is about 3 µm per pixel.
DSLR Autofocus Sensor
A close-up view of the light sensor employed by the phase detection autofocus system in the DSLR camera I took apart after its shutter failed. The horizontal and vertical rows of dark rectangles are the light-sensitive elements. Horizontal rows detect vertical edges in the scene, and vertical rows detect horizontal edges.
The 5 mm scale bar drawn at the bottom of the frame shows the size of the sensor chip. The resolution of the 4k version of this photo is about 3 µm per pixel.