OPTICAL SYSTEM COMPRISING A SOLID-STATE IMAGE SENSOR WITH MICROLENSES AND A NON-TELECENTRIC TAKING LENS

摘要

An imager includes a two-dimensional array of photosensors (35 of Figure 12), each photosensor having a center point. A non-telecentric lens is positioned over the two-dimensional array of photosensors, and a two-dimensional array of microlenses (60 of Figure 12) is positioned over the two-dimensional array of photosensors. Each microlens is associated with a corresponding photosensor, and each microlens has a center point. A color filter array (420, 430 and 440 of Figure 12) is positioned over the two-dimensional array of photosensors. The color filter array includes a plurality of color filter areas. Each color filter area (420 of Figure 12) is associated with a corresponding photosensor (35 of Figure 12) and has a center point. A layer of transmissive apertures (95 of Figure 16) is further positioned over the two-dimensional array of photosensors. Each aperture is associated with a corresponding photosensor and having a center point. The microlens is positioned over the corresponding photosensor such that the center point of the microlens if offset from the center point of the corresponding photosensor. The color filter area is positioned over the corresponding photosensor such that the center point of the color filter area is offset from the center point of the corresponding photosensor. Finally, the aperture is positioned over the corresponding photosensor such that the center point of the aperture is offset from the center point of the corresponding photosensor.