ZHAO Cun-hua, YAN Hui-ying. Design of optical system with axial gradient index mixing medium[J]. Journal of Applied Optics, 2009, 30(4): 558-562.
Citation: ZHAO Cun-hua, YAN Hui-ying. Design of optical system with axial gradient index mixing medium[J]. Journal of Applied Optics, 2009, 30(4): 558-562.

Design of optical system with axial gradient index mixing medium

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  • Axial gradient index (AGRIN) medium is hopeful to be substituted for the aspherical lens since the image quality of the former is better. The status and application of AGRIN lens are introduced. Its merits comparing with the aspherical lens are briefly presented. The manufacture technology of AGRIN medium is discussed. It is found that AGRIN material using in optical systems not only improves the image quality but also lowers the testing difficulties. A lens with 125mm focus, F/4, 25 FOV, which is suitable for full-frame 28 M pixel DALSA FTF6146M CCD, is designed for a digital aerial survey camera. Three spherical lenses were decreased from the original eleven ones because of the two AGRIN lenses on the premise of keeping the same image quality. The result indicates that the image uniformity and structure of the camera are much better than before.
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