کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
849739 909273 2010 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Null test of aspheric surface based on digital phase-shift interferometer
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
Null test of aspheric surface based on digital phase-shift interferometer
چکیده انگلیسی

In order to implement the null test of aspheric surfaces as simply as that of spherical ones in a commercial digital phase-shift interferometer, computer generated holograms (CGHs) that are composed of a main CGH, which produces the ideal aspheric wavefront, and an alignment CGH, which aids in calibration, were utilized. The principle of testing aspheric surface in an interferometer with CGHs is explained and critical aspects in designing, fabricating and calibrating CGHs are discussed in detail. Error analysis of the experimental results demonstrated that the uncertainty of the testing system is better than λ/10 (λ=0.6328 μm).

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optik - International Journal for Light and Electron Optics - Volume 121, Issue 17, September 2010, Pages 1586–1590
نویسندگان
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