Author Affiliations
Abstract
State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, China
A distortion correction method for the elemental images of integral imaging (II) by utilizing the directional diffuser is demonstrated. In the traditional II, the distortion originating from lens aberration wraps elemental images and degrades the image quality severely. According to the theoretical analysis and experiments, it can be proved that the farther the three-dimensional image is displayed from the lens array, the more serious the distortion is. To analyze the process of eliminating lens distortion, one lens and its corresponding elemental image are separated from the traditional II. By introducing the directional diffuser, the aperture stop of the separated optical system changes from the eye’s pupil to the lens. In terms of contrast experiments, the distortion of the improved display system is corrected effectively. In the experiment, when the distance between the reconstructed image and lens array is equal to 120 mm, the largest lens distortion is decreased from 46.6% to 3.3%.
080.1005 Aberration expansions Chinese Optics Letters
2018, 16(4): 041001
Author Affiliations
Abstract
1 Department of Physics, School of Science and Engineering, Ateneo de Manila University, Loyola Heights, Quezon City 1108, Philippines
2 Department of Mathematics, School of Science and Engineering, Ateneo de Manila University, Loyola Heights, Quezon City 1108, Philippines
A qualitative method to analyze wavefront aberrations is presented. Aberrations of the primary type, expressed in their matrix forms, are used to write the generalized ray transfer matrix of an optical component. The aberrations were treated collectively by examining the pseudospectra of an augmented matrix constructed from the aberration matrices. Results show that aberrations can be distinguished and relative strengths pronounced using this qualitative method.
像差 计算方法 近轴光学矩阵方法 080.2730 Matrix methods in paraxial optics 080.1753 Computation methods 080.1005 Aberration expansions Chinese Optics Letters
2010, 8(11): 1022
