Surface Structure, Veiling Glare, And Image Quality Of Optical Elements In The 3 To 10 µm Spectral Region

Paul Kuttner

doi:10.1117/12.934262

27 May 1982 Surface Structure, Veiling Glare, And Image Quality Of Optical Elements In The 3 To 10 µm Spectral Region

Paul Kuttner

Proceedings Volume 0330, Optical Systems Engineering II; (1982) https://doi.org/10.1117/12.934262
Event: 1982 Los Angeles Technical Symposium, 1982, Los Angeles, United States

Abstract

The influence of polishing time on the surface structure of optical elements is shown for germanium lenses. The surface structure is measured with a profilometer and expressed in the form of CLA values. Veiling glare of single lenses manufactured under different conditions is measured in the infrared spectral region (IR) between 3 and 10 μm. An instrument to measure the relative veiling glare ratio in the IR is shown. The results are discussed. The image quality of these lenses is shown as fine-line images and MTF measure-ments. An imperfect surface structure affects more greatly the shorter spectral region. The results are interpreted. Roughness of single point diamond turned lenses are compared with optically polished lenses.

Citation Download Citation

Paul Kuttner "Surface Structure, Veiling Glare, And Image Quality Of Optical Elements In The 3 To 10 µm Spectral Region", Proc. SPIE 0330, Optical Systems Engineering II, (27 May 1982); https://doi.org/10.1117/12.934262

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