Apparatus for sensing variations in light reflectivity of a moving surface
作者： James R Clinton
DOI:
关键词: Surface (mathematics) 、 Optics 、 Reflectivity 、 Materials science
摘要:
lens.org 参考文章(2)
Mandeville Robert A, Connelly John R, Photosensitive luminous annular sight ,(1961)
Jr Albert M Dexter, Electronic control for filament wrapping machines ,(1948)