optical density (Q1696): Difference between revisions
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Tdkiv-admin (talk | contribs) (Added [cs] description: pojem, #quickstatements; #temporary_batch_1725267411902) |
Tdkiv-admin (talk | contribs) (Added [en] description: concept, #quickstatements; #temporary_batch_1725267411902) |
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Revision as of 09:19, 2 September 2024
concept
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | optical density |
concept |
Statements
Míra pro zčernání (resp. zbarvení) fotografické vrstvy. Je rovna dekadickému logaritmu převrácené hodnoty (tj. zápornému logaritmu) činitele prostupu ((tzv. prostupová hustota), popř. činitele jasu ((tzv. odrazná hustota). D = -log (, resp. D = -log (. Slouží jako kritérium pro posuzování kvality mikrofilmů.
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000001693
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