The HM3451 is a 3.41-megapixel CMOS image sensor manufactured by Himax Technologies. It delivers a 2184 × 1560 pixel array with a 1.75 µm pixel pitch, providing efficient photon collection at each photosite. The optical format spans a 4.697 mm diagonal with a 0.295138889 aspect ratio, in the 1/4-inch class found in compact embedded vision modules. With 1.75 µm pixels, the sensor features very fine pixel pitch targeting maximum spatial resolution in microscopy and metrology systems.