An Interlaboratory Photometric Comparison of Glass Screens and of Tungsten
Language: English
Published by Forgotten Books, 2024
- Softcover
- New
Seller: Forgotten Books, London, United KingdomForgotten Books
AbeBooks seller since June 2, 2021
Condition: New
£ 13.11
Quantity: Over 20 available
Add to basketItem description from seller
Print on Demand. This book examines an interlaboratory comparison of photometry measurements involving color differences. The study looks at the agreement among observers and laboratories in measuring the transmission of glass screens and the candlepower of tungsten lamps at various voltages. The results show that each observer maintained a consistent criterion within their laboratory, and each laboratory showed good agreement with the mean of all laboratories, regardless of the type of photometer used. Importantly, the measurements also align closely with average eye perception, as determined in a separate study involving a large group of observers. These findings highlight the importance of careful observer selection and standardized conditions when establishing photometric standards involving color differences, especially for precision measurements. 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.…
Seller Inventory # 9781333935320_0
- Title
- An Interlaboratory Photometric Comparison of Glass Screens and of Tungsten
- Author
- G. W. Middlekauff, J. F. Skogland
- Publisher
- Forgotten Books
- Publication year
- 2024
- Condition
- New
- Book Type
- print-on-demand item
- Binding
- Paperback
- Language
- English
- ISBN 10
- 1333935323
- ISBN 13
- 9781333935320
- Seller catalogs
- Electronics
These equations have an important application also in the life testing of tungsten lamps, because in some testing laboratories it is customary to photometer the lamps at or near rated voltage and compute the voltage corresponding to' the efficiency at which it is desire% to burn the lamps on life test.
About the Publisher
Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com
This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
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Forgotten Books
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Forgotten Books’ Classic Reprint Series utilizes the latest technology to regenerate facsimiles of historically important writings. Careful attention has been made to accurately preserve the original format of each page whilst digitally enhancing the quality of the aged text.
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Forgotten Books publishes hundreds of thousands of rare and classic books.
This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
This text has been digitally restored from a historical edition. Some errors may persist, however we consider it worth publishing due to the work's historical value.
The digital edition of all books may be viewed before purchase if you request a sample.
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