The investigation of three layers diffraction optical element with wide field of view and high diffraction efficiency |
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| Authors: | Ya-hui Zhao Chang-jiang FanChao-fu Ying Hui Wang |
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| Institution: | The Key Laboratory of Researching Optical Information Detecting and Display technology, Zhejiang Normal University, jinhua Zhejiang 321004, China |
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| Abstract: | In this paper, a novel three layers diffraction optical element (TLDOE) composed of the optical materials with different indices and dispersion in each layer has been designed and investigated, the principle of selecting optical materials is discussed as well. The diffraction efficiency of the TLDOE at each wavelength in designed band is larger than 90% and the field of view (FOV) can even reach 110°, which can effectively improve energy utilization ratio and image quality of the hybrid refractive–diffractive optical system. |
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| Keywords: | Diffractive optics Micro-optical devices Optical design and fabrication |
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