Download or read book Optical Characterization Method for Concentrating Solar Collectors Using Reverse Illumination written by Keith Masterson and published by . This book was released on 1981 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper presents an optical method for checking overall alignment, aligning elements, identifying areas of extreme distortion, and determining receiver intercept factors of solar concentrators. The reverse illumination method (RIM) is performed by viewing the concentrator on its optical axis and through a telescope located several kilometres away.