Article
Ray Theory Analysis of the Shadow Blister Effect
Applied Optics
Document Type
Article
Publication Date
3-20-1998
Disciplines
Abstract
When an extended light source such as the Sun illuminates two objects so that their shadows lie close to each other, the shadow of one of the objects occasionally appears to bulge out toward the shadow of the other. This effect is caused by the overlap of the penumbras of the shadows and is analyzed here with ray theory. A laboratory demonstration of this phenomenon is performed and compared with theoretical predictions. (C) 1998 Optical Society of America.
DOI
10.1364/AO.38.001573
Version
Publisher's PDF
Publisher's Statement
This paper was published in Applied Optics and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-38-9-1573. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.
Citation Information
Lock, James A. "Ray Theory Analysis of the Shadow Blister Effect." Applied Optics 37 (1998): 1573-1578.