Hybrid diffractive-refractive optical system design of head-mounted display for augmented reality

Huijuan Zhang

doi:10.1117/12.567895

10 February 2005 Hybrid diffractive-refractive optical system design of head-mounted display for augmented reality

Huijuan Zhang

Proceedings Volume 5638, Optical Design and Testing II; (2005) https://doi.org/10.1117/12.567895
Event: Photonics Asia, 2004, Beijing, China

Abstract

An optical see-through head-mounted display for augmented reality is designed in this paper. Considering the factors, such as the optical performance, the utilization ratios of energy of real world and virtual world, the feelings of users when he wears it and etc., a structure of the optical see-through is adopted. With the characteristics of the particular negative dispersive and the power of realizing random-phase modulation, the diffractive surface is helpful for optical system of reducing weight, simplifying structure and etc., and a diffractive surface is introduced in our optical system. The optical system with 25 mm eye relief, 12 mm exit pupil and 20° (H)x15.4° (V) field-of-view is designed. The utilization ratios of energy of real world and virtual world are 1/4 and 1/2, respectively. The angular resolution of display is 0.27 mrad and it less than that of the minimum of human eyes. The diameter of this system is less than 46mm, and it applies the binocular. This diffractive-refractive optical system of see-through head-mounted display not only satisfies the demands of user’s factors in structure, but also with high resolution, very small chromatic aberration and distortion, and satisfies the need of augmented reality. In the end, the parameters of the diffractive surface are discussed.

Citation Download Citation

Huijuan Zhang "Hybrid diffractive-refractive optical system design of head-mounted display for augmented reality", Proc. SPIE 5638, Optical Design and Testing II, (10 February 2005); https://doi.org/10.1117/12.567895

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