AN OPTICAL DEVICE WITH WIDER FIELD OF VIEW USING CONCAVE LENS AND A HEAD MOUNTED DISPLAY APPARATUS HAVING THEREOF

摘要

The present invention relates to an optical device with a wider field of view by using an auxiliary lens, and more particularly, as an optical device, which is disposed in front of the user's eyes, so that the real world can be transmitted through the user's field of view. optical system; and a display for outputting image light so that image information along with the real world transmitted through the optical system can be provided as an optimized screen to the user, wherein the optical system transmits the image light output from the display to the user's a beam splitter that reflects in the direction of the eye and transmits real-world light; a single lens disposed on an optical path of the image light between the display and the beam splitter, the auxiliary lens refracting the image light output from the display; and a mirror disposed on the opposite side of the auxiliary lens with respect to the beam splitter and reflecting the image light passing through the beam splitter in the beam splitter direction, wherein the image light is refracted by the auxiliary lens to view ( Field of View (FOV) is widened as a feature of its composition. In addition, the present invention relates to a head-wearable display device using an optical device with a wider field of view using an auxiliary lens, and more particularly, to a head-wearable display device, comprising: an HMD frame that a user can wear on the head; and an optical device that provides augmented reality or mixed reality to a user wearing the HMD frame, wherein the optical device is disposed in front of the user's eyes wearing the HMD frame, the real world through the user's field of view an optical system through which the real world can be seen; and a display for outputting image light so that image information can be provided to the user as an optimized screen along with the real world transmitted through the optical system, wherein the optical system transmits the image light output from the display to the eyes of the user. a beam splitter that reflects in the direction and transmits real-world light; a single lens disposed on an optical path of the image light between the display and the beam splitter, the auxiliary lens refracting the image light output from the display; and a mirror disposed on the opposite side of the auxiliary lens with respect to the beam splitter and reflecting the image light passing through the beam splitter in the beam splitter direction, wherein the image light is refracted by the auxiliary lens to view ( Field of View (FOV) is widened as a feature of its composition. According to the optical device and the head-wearable display device using the same, the field of view is widened using the auxiliary lens according to the features of the present invention proposed in the present invention, by disposing the auxiliary lens on the optical path of the image light between the display and the beam splitter, By allowing the image light output from the display to be refracted and incident on the optical system, the field of view (FOV) can be widened, thereby increasing the immersion in the image and increasing screen utilization efficiency.