Acta Photonica Sinica, Volume. 40, Issue 7, 1051(2011)
Design Method of a Freeform HMD System with Large Pupil Size
Usually, freeform optical surfaces do not have rotational symmetry compared with traditional spherical and aspheric elements, so they have more freedom for system design. In some optical systems which have strict package requirements, such as overall length, weight and volume etc., freeform optical elements can help to satisfy these requirements through reducing lens number of the system. In this paper, the design method of freeform optical elements was introduced, and proposed several design examples of the optical system were proposed which adopted freeform optical elements. From these design examples, the advantages of using freeform optical elements could be proved. The size of the microdisplay used is 0.61 inch and FOV is 45°. The exit pupil diameter is 10 mm.
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YANG Bo, WEI Xiaona, ZHANG Wei, ZHUANG Songlin. Design Method of a Freeform HMD System with Large Pupil Size[J]. Acta Photonica Sinica, 2011, 40(7): 1051
Received: Dec. 31, 2010
Accepted: --
Published Online: Aug. 10, 2011
The Author Email: Bo YANG (yangbo@usst.edu.cn)