How to measure the optical quality of focusing solar collectors without laser ray tracing /

Bibliographic Details
Main Author: Bendt, P.
Corporate Author: Solar Energy Research Institute
Other Authors: Gaul, H. W. (Harry W.), Rabl, Ari
Format: Government Document Book
Language:English
Published: Golden, Colo. : Solar Energy Research Institute, [1979]
Series:SERI/TP ; 34-251
Subjects:
Online Access:https://purl.fdlp.gov/GPO/LPS88159
Description
Item Description:"May 1979."
Mode of access: Internet from the NREL web site. Address as of 11/21/07: http://www.nrel.gov/docs/legosti/old/251.pdf; current access available via PURL.
Electronic resource.
Physical Description:5 unnumbered pages : digital, PDf file.