Title: An Average Eye For Heterochromatic Photometry, and a Comparison of a Flicker and an EqualityofBrightness Photometer Classic Reprint
Publisher: Forgotten Books
Publication Date: 2018
Language: English
ISBN 10: 1333935072
ISBN 13: 9781333935078
Binding: PAP
Condition: New
Weight: 109 grams

About this title

Synopsis

The average eye in photometry: a careful comparison of flicker and equality-of-brightness methods. This scholarly report explains how researchers compare color differences using two different photometer designs to find reliable, repeatable results.

The study documents a detailed procedure: two standard photometer bars, constant illumination, and a large group of observers. It explores how observer variation affects measurements when judging color differences between lamps and colored solutions. The goal is to establish how each method performs in practice and how to improve accuracy in lighting measurements.

Describes the apparatus and setup for flicker and equality-of-brightness measurements

Reports results from 114 observers and a repeat test with a focused group

analyzes how observer characteristics influence color-difference readings and how to adjust for them

Compares flicker, large-field, and small-field equality measurements against benchmark lamps and solutions

Ideal for readers of scientific photometry and lighting standards who want a grounded, data-driven view of how observer factors shape color-difference measurements.

"About this title" may belong to another edition of this title.

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