Optical device for augmented reality providing expanded eye box

An optical device for augmented reality providing an expanded eye box, the optical device comprising:

• a first optical means configured such that virtual image light output from an image output unit propagates through an inside thereof;
• an optical conversion means embedded and disposed inside the first optical means, and configured to transfer the virtual image light, propagating through the inside of the first optical means, to first optical elements;
• the plurality of first optical elements embedded and disposed inside the first optical means, and configured to output the virtual image light, transferred from the optical conversion unit, to a second optical means;
• the second optical means configured to transfer real object image light, output from a real object, to a pupil of a user's eye by transmitting the real object image light therethrough, and also configured to allow the virtual image light, output from the first optical elements, to propagate through an inside thereof;
• and
• a plurality of second optical elements embedded and disposed inside the second optical means, and configured to provide a virtual image to the user by transferring the virtual image light, propagating through the inside of the second optical means, to the pupil of the user's eye;
• wherein the plurality of first optical elements are arranged at intervals in a first direction inside the first optical means;
• and
• wherein the plurality of second optical elements are arranged at intervals in a second direction inside the second optical means.