COLOR FILTER, COLOR FILTER ARRAY AND FABRICATION METHOD THEREOF AND IMAGE SENSOR

摘要

A color filter, a color filter array, a method for manufacturing the color filter, and an image sensor are provided to prevent different color beams from being mixed with one another by laminating plural inorganic films with different refractive indexes. A color filter(20) includes a substrate(10) and first and second inorganic films(21,25), which are repeatedly and alternatively laminated on the substrate. The first and the second inorganic films contain inorganic materials having a refractive index between 1.3 and 6.0 in a visible ray region between 400 and 700 nm. The first inorganic film is made of a material with a big refractive index, while the second inorganic film is made of a material with a small refractive index. A difference between the refractive indexes of the first and the second inorganic films is at least 0.8.