Design of an off-axis visual display based on a free-form projection screen to realize stereo vision. Issue 19 (28th October 2017)

• Record Type: Journal Article
• Authors: Zhao, Yuanming; Cui, Qingfeng; Piao, Mingxu; Zhao, Lidong
• Is Part Of: Journal of modern optics. Volume 64:Issue 19(2017)
• Page Start: 2066
• Page End: 2073
• Publication Date: 2017-10-28
• Subjects: Optical design -- visual display -- free-form surface -- vision-binocular and stereopsis; Optics -- Periodicals; 535
• DOI: 10.1080/09500340.2017.1337939
• Languages: English
• ISSNs: 0950-0340

Abstract

Abstract: A free-form projection screen is designed for an off-axis visual display, which shows great potential in applications such as flight training for providing both accommodation and convergence cues for pilots. The method based on point cloud is proposed for the design of the free-form surface, and the design of the point cloud is controlled by a program written in the macro-language. In the visual display based on the free-form projection screen, when the error of the screen along Z -axis is 1 mm, the error of visual distance at each filed is less than 1%. And the resolution of the design for full field is better than 1′, which meet the requirement of resolution for human eyes.