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Excerpt from An Average Eye For Heterochromatic Photometry, and a Comparison of a Flicker and an Equality-of-Brightness PhotometerAll the photometers used had pupil apertures 5 mm in diameter. Each photometer head was provided with holders for absorption glasses, as well as holders for absorption cells, especially con structed to prevent any diffusion of stray light into

Title : An average Eye for Heterochromatic Photometry, and a Comparison of a Flicker and an Equality-Of-Brightness Photometer (Classic Reprint)
Author : E C Crittenden
Language : en
Rating :
4.90 out of 5 stars
Type : PDF, ePub, Kindle
Uploaded : Apr 11, 2021

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