[20a-PB10-1~3] 【CS.2】 Code-sharing Session of 3.3 & 4.4

▲ [20a-PB10-1] Analysis of Optical System Combined with Expander and Output Grating for Improving Field of View of Augmented Reality Device

〇(M2)JungBeom Choi¹, JongHa Park¹, SooBin Kim¹, Hwi Kim¹ (1.Korea Univ)

Keywords:Augmented reality, diffractive optical element

Augmented reality (AR) is the significant technology of head-mounted-display (HMD) which is one of the next-generation displays, and has received great attention in recent years. AR displays have been studied for a long time with folded freeform optics in optical design. Recently, diffraction optics based flat plate integrated optics technology has been introduced to dramatically reduce the form factor of optical systems. In this paper, we have suggested an optical system that combines an expander grating and an output grating as part of a study on improving FOV of AR display.