Assessment of Brightness

Apr 01, 1957

The author presents a description of work which might lead to something new in the future. The subject is the Assessment of Brightness - the problem of the judgment of magnitude of brightness as we see it. This papers aims to show that a useful engineering scale of apparent brightness can be derived by various methods, including direct estimation. The effects of adaptation can be allowed for. Much more work is necessary before a final scale can be put forward.

R. G. Hopkinson
Journal of IES
Published & professionally reviewed by: 
Illuminating Engineering Society (IES)

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