Front and rear projection autostereoscopic 3D displays based on lenticular sheets

Qiong-Hua Wang; Shang-Fei Zang; Lin Qi

doi:10.1117/12.2077633

11 March 2015 Front and rear projection autostereoscopic 3D displays based on lenticular sheets

Qiong-Hua Wang, Shang-Fei Zang, Lin Qi

Proceedings Volume 9385, Advances in Display Technologies V; 93850A (2015) https://doi.org/10.1117/12.2077633
Event: SPIE OPTO, 2015, San Francisco, California, United States

Abstract

A front projection autostereoscopic display is proposed. The display is composed of eight projectors and a 3D-imageguided screen which having a lenticular sheet and a retro-reflective diffusion screen. Based on the optical multiplexing and de-multiplexing, the optical functions of the 3D-image-guided screen are parallax image interlacing and viewseparating, which is capable of reconstructing 3D images without quality degradation from the front direction. The operating principle, optical design calculation equations and correction method of parallax images are given. A prototype of the front projection autostereoscopic display is developed, which enhances the brightness and 3D perceptions, and improves space efficiency. The performance of this prototype is evaluated by measuring the luminance and crosstalk distribution along the horizontal direction at the optimum viewing distance. We also propose a rear projection autostereoscopic display. The display consists of eight projectors, a projection screen, and two lenticular sheets. The operation principle and calculation equations are described in detail and the parallax images are corrected by means of homography. A prototype of the rear projection autostereoscopic display is developed. The normalized luminance distributions of viewing zones from the measurement are given. Results agree well with the designed values. The prototype presents high resolution and high brightness 3D images. The research has potential applications in some commercial entertainments and movies for the realistic 3D perceptions.

Citation Download Citation

Qiong-Hua Wang, Shang-Fei Zang, and Lin Qi "Front and rear projection autostereoscopic 3D displays based on lenticular sheets", Proc. SPIE 9385, Advances in Display Technologies V, 93850A (11 March 2015); https://doi.org/10.1117/12.2077633

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KEYWORDS

3D displays

Prototyping

3D image processing

Projection systems

Autostereoscopic displays

3D metrology

Diffusion

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