illuminance


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illuminance

Quotient of the luminous flux, F, incident on an element of surface divided by the area, A, of that element of surface. Symbol: E. Thus
E = F/A
The units are in lux or footcandles. Syn. illumination. See inverse square law of illumination; photometer.
References in periodicals archive ?
In the current work, regarding the variety of monitored offices, surface reflectance uncertainty, and to tackle computationally intensive approaches in simulating various office layouts, indoor illuminance is being measured on site.
This paper deal with lighting coming into the rooms through the window providing daylight in obstructed low cost high-rise residential building where it is considered as a system providing and controlling illuminance and daylight factor distribution in the rooms.
In this paper, the experiment was carried out to analyse the changes of illumination for distinct types of activity assigned to particular illuminance category (Table).
Several studies have investigated the effect of increase in illuminance on task performance.
The more complex the visual task is, the higher the illuminance requested.
Illuminance sensor set point was computed at the height of 0.
The T&D RTR-500DC Data Collector with graphical display is compatible with all RTR 500 Series Data Loggers for all types of measurement, including temperature, humidity, pulse, voltage, milliampere, CO2, UV and illuminance.
The aim of Nurick's energy group is twofold: to replace lighting powered by the national grid with solar illuminance and to provide an energy source in the absence of a national grid or other energy sources in remote, electrical energy-deprived regions
The operation conditions tested during the illuminance characterization.
of scenes: 12 Lighting: Peripheral lighting, task illuminance Dependent variables: Affective state Loe, Mansfield, Luminance within 40[degrees] Space: and Rowlands horizontal band about the line Conference room (1994) of sight was most important in determining the perception of brightness.
Revlon Illuminance Creme Shadow in Wild Orchids, $7, drugstores
We will bring in our LED downlights which can provide even or more illuminance with less energy consumption.