Image sensor for producing vivid colors and method of manufacturing the same

An image sensor comprising:

• a unit pixel comprising a red sub-pixel, a green sub-pixel, and a blue sub-pixel arranged in a Bayer pattern;
• at least one first beam splitter disposed in an area corresponding to the red sub-pixel and extending in a diagonal direction of the red sub-pixel, in a plan view;
• and
• at least one second beam splitter disposed in an area corresponding to the blue sub-pixel and extending in a diagonal direction of the blue sub-pixel, in a plan view.

A method of manufacturing an image sensor, the method comprising:

• forming a low refractive index layer on a lower layer, the lower layer comprising a color filter;
• forming a beam splitter in the low refractive index layer;
• and
• forming a lens layer covering the beam splitter, on the low refractive index layer,
• wherein the beam splitter extends in a diagonal direction of a pixel area of the color filter, in a plan view.