کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
804624 | 904970 | 2012 | 5 صفحه PDF | دانلود رایگان |
High quality imaging spectroscopy data is useful for both military and civilian applications. State-of-the-art spectrometers incorporate spherically concentric, axially symmetric and telecentric optical design. However, these designs require a diffraction grating operating in reflection that is manufactured on a convex, spherical or possibly freeform surfaces, and thus traditional grating manufacturing methods limit modern designs and raise costs. Further, it is often desirable to manufacture such optics in a monolithic configuration aligning them and eliminating assembly. This paper explores the capability of new 5-axis ultra-precision machine tools for manufacturing diffraction gratings in simplified experiments aimed at progressing toward producing gratings on freeform surfaces and monolithic combined optical designs.
► Imaging spectrometers require axisymmetric optics with integrated diffraction gratings.
► We explore the manufacture of gratings with 5-axis ultra-precision machine tools.
► Results show that multi-axis diamond machining may replace more expensive techniques.
Journal: Precision Engineering - Volume 36, Issue 2, April 2012, Pages 334–338