Augmented reality optical device using total reflection

Abstract

The present invention relates to an optical device for augmented reality using total reflection, and provides an optical device for augmented reality using total reflection, the optical device for augmented reality comprising: an optical unit for penetrating at least a part of real object image light, which is image light emitted from a real object, into a pupil of an eye of a user; a total reflection space is formed in the optical unit, and the total reflection space is used for transmitting augmented reality image light emitted from an image emitting part to pupils of eyes of a user; the total reflection space is filled with a medium with a refractive index smaller than that of the optical unit, and augmented reality image light which passes through the interior of the optical unit and is transmitted to the total reflection space is totally reflected in the total reflection space and is transmitted to pupils of eyes of a user.

Description

technical field [0001] The present invention relates to an optical device for augmented reality, and more particularly, to an optical device for augmented reality that can transmit augmented reality image light by utilizing total reflection inside the optical device for augmented reality, and minimize light leakage to the outside, and it is difficult to An optical device for augmented reality that can reduce foreign matter by recognizing the optical structure from the outside. Background technique [0002] As is well known, Augmented Reality (AR) refers to a technology that superimposes a virtual image or image provided by a computer or the like on an actual image of the real world and provides it. [0003] In order to realize such augmented reality, an optical system that can superimpose and provide virtual images or images generated by devices such as computers on real-world images is required. As such an optical system, it is well known that there is a technique using an...

AI Technical Summary

Problems solved by technology

[0006] However, these technologies also have the following problems: In order to adjust the focal length of the virtual image, the user needs to perform additional operations, or additional devices, processors, and other hardware and software for controlling the focal length are required

[0017] On the other hand, the optical system used in augmented reality needs to protect the user's information by making it impossible for external observers to recognize the augmented reality image provided to the user wearing the optical device for augmented reality, and a combiner of total reflection is generally used. (combiner), since the augmented reality image is irradiated on the total reflection surface, in terms of protecting the user's information, there is a limitation that it is necessary to install an additional coating or a translucent shielding plate on the front of the device.

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