Design of retinal projection display system

Conventional see-through head-mounted displays (HMDs) provide an effective capability for mixed reality, but images from two-dimensional virtual information are not clear on retina when eyes are accommodated in such systems. In order to overcome this problem, a novel see-through HMD was proposed based on Maxwellian view principle, which directly projected images onto the users retina with a miniature LCD and a laser independent of the accommodation of eyes. This means that images are always clear during accommodation. The display concept of HMDs was discussed, the optical system and overall structure were designed, the functions were tested and verified, and the optical system was optimized with ZEMAX. The results show that MTF value reaches the diffraction limit.