Optical design of a off-axis dual-channel helmet mounted display

被引：0

作者：

Tong J. ^{[1
]}

Cui Q. ^{[1
]}

Xue C. ^{[1
]}

Pan C. ^{[1
]}

Zhang D. ^{[1
]}

Zhang K. ^{[1
]}

机构：

[1] Department of Optical Engineering, Changchun University of Science and Technology, Changchun

来源：

Guangxue Xuebao/Acta Optica Sinica | 2010年 / 30卷 / 09期

关键词：

Freeform surface; Helmet mounted display (HMD); Off-axis aberration analysis; Optical design;

D O I：

10.3788/AOS20103009.2662

中图分类号：

学科分类号：

摘要：

Structure characters of a dual-channel helmet mounted display (DCHMD) optical system was analyzed. Based on the discussion of the requirements of DCHMD in application, the system's technical specifications were presented. The off-axis aberration was analyzed and corrected by proper freeform surface at the right place of the optical system. A DCHMD optical system was developed with technical specifications: 40° × 30° field of view, 15mm exit pupil diameter, 26.4 mm effective focal length, 25 mm eye relief distance, wavelength range 540~560nm, back focal length more than 3 mm and modulation transfer function (MTF) higher than 0.1 at the frequency of 0.88 lp/mrad. This system has a compact size (70 mm × 122 mm) and a decent center of gravity, and could be embedded in the helmets.

引用

页码：2662 / 2667

页数：5

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