Optical device for augmented reality

An optical device for augmented reality, the optical device comprising:

• an optical means for transmitting at least part of visible light therethrough;
• a plurality of reflective units disposed inside the optical means;
• and
• an image output unit configured to output image light corresponding to an image for augmented reality toward an inner surface of the optical means;
• wherein the image light corresponding to the image for augmented reality output from the image output unit is reflected at least once by the inner surface of the optical means and transferred to the plurality of reflective units in partially separated manner;
• wherein each of the plurality of reflective units is disposed such that a distance to an adjacent reflective unit is 8 mm or less;
• and
• wherein the plurality of reflective units reflects off the transferred image light toward a pupil of an eye of a user, thereby providing the image for augmented reality to the user.