9781333935078 - An "Average Eye" For Heterochromatic Photometry, and a Comparison of a Flicker and an Equality-of-Brightness Photometer (Classic Reprint) de Crittenden, E. C. (3 resultados)

PAP. Condición: New. New Book. Shipped from UK. Established seller since 2000.

PAP. Condición: New. New Book. Shipped from UK. Established seller since 2000.

Paperback. Condición: New. Print on Demand. This book investigates the human eye's capacity for distinguishing between colors, especially yellow and blue, and how the differences in human perception can lead to different photometric measurements. The author explores both icker and Lummer-Brodhun photometers and determines which is best suited to take accurate photometric measurements. The author discusses the characteristics of a "normal" observer and how to select observers for accurate measurements. The author concludes that the icker photometer, used under specific conditions, provides the most certainty and reduces the labor needed to attain accurate results. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item.