CAJ | 학술논문

为了减小体全息光栅用于全息波导显示时不同视场角下衍射光谱的偏移，提出选择最佳的光栅矢量倾斜角和像源光轴相对于体全息光栅的倾斜角，可以减小衍射光谱的偏移。为了使全息波导显示系统在给定入射角度范围内具有相同的衍射光谱范围，采用三次曝光记录了一层体全息光栅。仿真结果表明，当像源的光谱范围在524～540 nm之间时，该体全息光栅在入射角度范围－3°～3°内的衍射光谱范围相同，提高了给定入射角度范围内衍射光谱范围的一致性，可以应用于全息波导显示系统中。
위료감소체전식광책용우전식파도현시시불동시장각하연사광보적편이，제출선택최가적광책시량경사각화상원광축상대우체전식광책적경사각，가이감소연사광보적편이。위료사전식파도현시계통재급정입사각도범위내구유상동적연사광보범위，채용삼차폭광기록료일층체전식광책。방진결과표명，당상원적광보범위재524～540 nm지간시，해체전식광책재입사각도범위－3°～3°내적연사광보범위상동，제고료급정입사각도범위내연사광보범위적일치성，가이응용우전식파도현시계통중。
In order to reduce the diffracted spectrum shift of the holographic wave-guided display systems within the entire field of view,the optimum slant angle of grating vector and the optimum slant angle of the image source optical axis relative to the volume grating were used .To get the same diffraction spectrum range in the given incident angular range ,one-layer volume holographic grating was recorded based on three-step exposure .The numerical simulation shows that:The wavelength ranges of diffracted light are kept the same with the incident angular at -3°to 3°when the spectrum of light source is in the range of 524 nm to 540 nm.The uniformity of the diffraction spectrum range is improved ,and this design can be used in holographic waveguide display systems .