Tsinghua University

Shenzhen Thondar Technology Co., Ltd

Zhenhua Chen

Jinsong Zhang

Hui Ma

Ran Liao

Yonghong He

Nan Zeng

Jintao Chang

Honghui He

Shuqing Sun

Zeljko Ribaric

Kexing Liu

Xuechuan Dong

Jianwei Ren

Sha Lai

Feiyan Ma

Yequan Huang

Disclosed is a fundus camera, which relates to the technical field of medical devices and includes: an illumination module, a main optical assembly, a focusing module, and an image sensing acquisition module; the illumination module includes a plurality of light sources configured to emit light of different wavelengths, illumination light emitted by the plurality of light sources is conducted to enter an eye of a patient through the main optical assembly, and light reflected by a retina of the patient is conducted to pass through the main optical assembly and the focusing module to enter the image sensing acquisition module. The fundus camera provided by the present application improves the technical problem that the fundus camera in the prior art cannot image different layers of the retina, thereby providing valuable medical and diagnostic data.

Fundus camera

Disclosed are a light polarization state detection apparatus, a detection method and a light polarization state modulation method. The light polarization state detection apparatus comprises a lens with a variable birefringence feature as an optical phase modulator, a polarizer as a SOP analyzer, a plurality of common lenses and a CCD as imaging devices, and a data processing and displaying unit. The SOP detection apparatus uses wide special birefringence distribution of birefringence optical elements such as a GRIN lens to obtain the Stokes parameters of light to be measured by CCD single frame imaging, and can rapidly accurately measure the SOP. The SOP detection apparatus is simple in structure, lower in cost without containing any motion parts and electrical modulation devices, and is a fully static full Stokes parameters SOP detection apparatus.

Light polarization state modulation and detection apparatuses and detection method

Growing community of inventors

Guangdong, China

Zhenhua Chen