title: Solar concentrating properties of truncated hexagonal, pyramidal and circular cones.
abstract: The concentrating properties of specularly reflecting pyramids, hexagons, and circular cones are examined. The concentration factor is determined as a function of the coefficient of reflection and the shape and orientation of the incident sunlight. Reflector designs allowing multiple reflections for both normal and oblique incidence are considered.
authors.forename: D G
authors.initials: DG
authors.lastname: Burkhard
authors.forename: G L
authors.initials: GL
authors.lastname: Strobel
authors.forename: D L
authors.initials: DL
authors.lastname: Shealy