作者: Sylvan R Shemitz , Benjamin L Stahlheber
DOI:
关键词: Reflector (antenna) 、 Mathematics 、 Magnitude (mathematics) 、 Surface (mathematics) 、 Plane (geometry) 、 Optics 、 Geometry
摘要: Substantially uniform magnitude of illumination on a plane surface is provided by concave reflector having parabolic reflecting and an elliptical oriented relative to one another satisfy the following criteria.