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Open Access Retinal projection type 3D head-mounted display using an HOE lens array

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We propose a retinal projection type super multi-view (SMV) HMD using a 2D microlens array. The smooth motion parallax is provided by SMV technique. Moreover, if a viewer focuses his or her eyes on the displayed 3D image, the stimulus of accommodation of the human eye is reproduced naturally by SMV technique. Therefore, although the proposed HMD is a monocular HMD, it provides observers with natural 3D images. To verify the effectiveness of the proposed HMD by using camera, we constructed the prototype holographic optical element (HOE). The number of microlenses is 9, and the focal length and the size of each microlens of the prototype HOE were 11.1 mm and 20 mm X 20 mm, respectively. The distance between each convergence point was 6.67 mm. We displayed 3D images at the distance from 200mm to 2000mm in front of the camera, and confirmed the accommodation by the prototype HMD.

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Document Type: Research Article

Publication date: 2016-02-14

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