基于可变孔径针孔阵列的集成成像3D显示

In order to solve the mutual restraint relationship between the viewing angle and the optical efficiency, an integrated imaging 3D display based on a variable-aperture pinhole array is designed, a 3D imaging model is established, and the calculation formulas for the viewing angle and the optical efficiency are derived through geometric optics; it is elaborated in detail how to adjust the viewing angle and the optical efficiency by changing the aperture width of the light-transmitting holes; a prototype of an integrated imaging 3D display based on a variable-aperture pinhole array is developed, an electrically controlled variable-aperture pinhole array is realized through a liquid crystal display, and it is verified through experiments that the brightness of the 3D image or the viewing angle can be increased by increasing or decreasing the aperture width of the light-transmitting holes.

为了解决观看视角与光学效率的相互制约关系,设计了一种基于可变孔径针孔阵列的集成成像3D显示器,建立了3D成像模型,通过几何光学推导观看视角以及光学效率的计算公式;详细阐述了如何通过改变透光孔的孔径宽度来调节观看视角以及光学效率;研制了基于可变孔径针孔阵列的集成成像3D显示样机,通过液晶显示屏实现电控可变孔径针孔阵列,通过实验验证了可以通过增大或者减小透光孔的孔径宽度来增大3D图像的亮度或者观看视角。