中国物理B ›› 2008, Vol. 17 ›› Issue (12): 4529-4532.doi: 10.1088/1674-1056/17/12/033
胡立发1, 宣丽1, 姜宝光2, 曹召良2, 穆全全2, 李超2
Jiang Bao-Guang (姜宝光)ab, Cao Zhao-Liang(曹召良)ab, Mu Quan-Quan(穆全全)ab, Hu Li-Fa (胡立发)a, Li Chao (李超)ab, Xuan Li (宣丽)a
摘要: In order to obtain a clear image of the retina of model eye, an adaptive optics system used to correct the wave-front error is introduced in this paper. The spatial light modulator that we use here is a liquid crystal on a silicon device instead of a conversional deformable mirror. A paper with carbon granule is used to simulate the retina of human eye. The pupil size of the model eye is adjustable (3--7mm). A Shack-Hartman wave-front sensor is used to detect the wave-front aberration. With this construction, a value of peak-to-valley is achieved to be 0.086Λ, where Λ is wavelength. The modulation transfer functions before and after corrections are compared. And the resolution of this system after correction (69lp/m) is very close to the diffraction limit resolution. The carbon granule on the white paper which has a size of 4.7μm is seen clearly. The size of the retina cell is between 4 and 10μm. So this system has an ability to image the human eye's retina.
中图分类号: (Anatomy and optics of eye)