頭戴顯示裝置光學波前檢測;Vi Sual Reality Device Optical Wavefront Testing

Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/82171

Title:	頭戴顯示裝置光學波前檢測;Vi Sual Reality Device Optical Wavefront Testing
Authors:	梁肇文
Contributors:	國立中央大學光電科學與工程學系
Keywords:	光學設計;自由曲面;波前檢測;光學檢測;虛擬實境;擴增實境;頭戴式顯示器;視光學;Lens Design;Freeform Optics;Wavefront testing;Optical Testing;Virtual Reality;Augmented Reality;Mixed Reality;Head mount Display
Date:	2020-01-13
Issue Date:	2020-01-13 14:20:06 (UTC+8)
Publisher:	科技部
Abstract:	虛擬實境(Virtual Reality,VR)，擴增實境(Augmented Reality， AR)和混和實境(Mixed Reality， MR)的相關頭戴式顯示裝置與其相關的產業應用近年持續的發展，其中的顯示器解析度預期將進步到4K甚至更高。然而，因為體積與重量問題，關鍵的光學成像系統已開始往非傳統成像的方向發展，在這個過程中，頭戴式裝置的光學系統在光學檢測方面已面臨許多挑戰與產生新的技術發展難題，尤其是目前對於頭戴式顯示裝置並沒有一個客觀的影像品質評估方法。對此，我們提出了一個三年期的研究計畫，在計劃的前兩年將致力於改善目前的多波長波前量測技術量測動態範圍不足與全場光學像差模型不成熟的問題，並藉由校正微陣列透鏡的像差函數、加入多波長光源量測、平板玻璃穿透波前平移校正..等多種實驗方法來提昇與驗證所打造的高動態波前量測的範圍，打造並使此裝置能在頭戴式顯示器的光學品質量測應用，並能夠有效快速的量測裝置所產生的視覺虛擬影像的深度、位置、品質的評估，達到客觀量測的目標。我們預期藉由過去於非球面的拼接式干涉量測與光學鏡頭設計實務所累積的研究經驗來發展目前波前量測的非球面波前的潛力，使波前檢測器不僅可以直接量測球面波前，還可以量測高度頭戴式顯示器超高入射角的波前並維持一定的量測精度。 ;The head mount display (HMD) technology (Virtual Reality, Augmented Reality , and Mixed Reality) have been developed for years. The display inside the HMD device have been improved significantly while the optics starts to face different kind of challenges. First of all, the optical testing of the HMD is not matured. An subjective method is desired for evaluating the optical system performance of the HMD device. In view of this, we proposed a three years research project to overcome this issue.In the first two years, we proposed to improve the measurement dynamic range of the wavefront sensor and the mathematical modeling of the optical field of the freeform optics. By calibrating the aberration function of the lens array, adding the multiple wavelength light source, and the optical flat calibration technique, we can improve the optical system of the wavefront to be capable of measuring the HMD. We expect the wavefront sensor could be able to measure the optical field depth, the location of the image, and the wavefront quality of the image simultaneously. Relying on the past research experience on the aspherical testing, it’s expected to be the best technology to enabling the measurement of the aspherical lens in a rapid and flexible manner. In the meantime, we can achieve the goal of high dynamic range measurement of the wavefront coming out of the HMD.
Relation:	財團法人國家實驗研究院科技政策研究與資訊中心
Appears in Collections:	[Department of Optics and Photonics] Research Project

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