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Luminance (or brightness)
| Photo Chemical Glossary |
A measure of flux reflected or emitted from a surface. it has
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Luminous energy, английский
- A measure of rate of flow of flux. it has units of lumen-seconds.
- The time integral of luminous flux; given by the product of the luminous flux and the time that the flux is maintained, if the luminous flux is of constant value; usually expressed in lumen-hours.
Scribecoat, английский
A material composed of a stable base such as glass or film with an opaque
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