
Proceedings Paper
Design of a compact wide field of view HMD optical system using freeform surfacesFormat | Member Price | Non-Member Price |
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Paper Abstract
The design of a compact optical system with good image quality for head mounted display (HMD) is particularly
demanding since the aberrations, weights, and center of gravity of the display are always critical. One more critical
requirement is its wide field of view. We are presenting two designs of an HMD optical system, which have good optical
performance while maintaining the compactness. The comparison of their optical performance and other parameters is
also presented. Freeform optical surfaces are employed in one of these designs while one aspheric and some spherical
surfaces are used in the other design. Freeform surfaces provide more degrees of freedom to design an optical system
with less number of elements and hence to reduce the weight of the overall system. Generally, HMD optical systems are
tilted and decentered in their nature; it is difficult to get rid of all the aberrations without adding extra optics in such
systems. However, freeform optics also provides enough degrees of freedom in this aspect and facilitates the designer to
overcome such limitations without additional optics. It is also mentioned that the fabrication technologies of freeform
optics are developing now and hence allow the designers to employ such optics elements in their designs. The designing
characteristics and results of the two proposed models are also discussed in this paper.
Paper Details
Date Published: 12 March 2008
PDF: 14 pages
Proc. SPIE 6624, International Symposium on Photoelectronic Detection and Imaging 2007: Optoelectronic System Design, Manufacturing, and Testing, 662416 (12 March 2008); doi: 10.1117/12.791113
Published in SPIE Proceedings Vol. 6624:
International Symposium on Photoelectronic Detection and Imaging 2007: Optoelectronic System Design, Manufacturing, and Testing
Liwei Zhou, Editor(s)
PDF: 14 pages
Proc. SPIE 6624, International Symposium on Photoelectronic Detection and Imaging 2007: Optoelectronic System Design, Manufacturing, and Testing, 662416 (12 March 2008); doi: 10.1117/12.791113
Show Author Affiliations
M. M. Talha, Beijing Institute of Technology (China)
Yongtian Wang, Beijing Institute of Technology (China)
Yongtian Wang, Beijing Institute of Technology (China)
Dewen Cheng, Beijing Institute of Technology (China)
Jun Chang, Beijing Institute of Technology (China)
Jun Chang, Beijing Institute of Technology (China)
Published in SPIE Proceedings Vol. 6624:
International Symposium on Photoelectronic Detection and Imaging 2007: Optoelectronic System Design, Manufacturing, and Testing
Liwei Zhou, Editor(s)
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