AN INSTRUMENT FOR GEOMETRIC ATTRIBUTES OF METALLIC APPEARANCE

被引：11

作者：

CHRISTIE, JS

机构：

[1] Appearances Measurements Laboratory, Hunter Associates Laboratory, Inc., Fairfax, VA, 22030

来源：

APPLIED OPTICS | 1969年 / 8卷 / 09期

关键词：

D O I：

10.1364/AO.8.001777

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

With the use of a greater variety of metals and methods of finishing them, an increasing need to measure metallic appearance has developed in the automotive industry. A simple and easy to operate instrument has been designed to measure the geometric characteristics of reflectance related to metallic appearance. These are specular reflectance, distinctness of image, haze, and diffuseness. A series of selected aluminum and stainless steel specimens has been used to test the performance of the new instrument and of older devices with which it has been compared. Functionally, the new instrument combines features of the Distinctness of ReflectedImage (DORI)meter designed byTingle, and the abridged goniophotometer designed by Tingle and George. The design and operation of the new instrument have been simplified by use of multiple receptor apertures with optical fiber light collectors. The measurement of a wide range of metal appearance characteristic has thus been achieved with mechanical and electrical circuit simplicity. © 1969 Optical Society of America.

引用

页码：1777 / &