Noun : a source of illumination.    From Dictionary.com. 

What is understood by the term of ‘illuminance shape’?.    From Wordnik.com.  [3. Calculation of Illuminance] Reference

With the illuminance given the light source can be found.    From Wordnik.com.  [3. Calculation of Illuminance] Reference

The required medium illuminance depending on the visual task.    From Wordnik.com.  [3. Calculation of Illuminance] Reference

The illuminance adds in the middle of the working surface to.    From Wordnik.com.  [3. Calculation of Illuminance] Reference

Illumination or illuminance in various systems of units lx ph fc.    From Wordnik.com.  [2. Elements] Reference

In average it will be 1 - 3% of the general lighting’s illuminance.    From Wordnik.com.  [6. Installation of emergency lighting systems] Reference

Its mean illuminance will be less than that of the general lighting.    From Wordnik.com.  [6. Installation of emergency lighting systems] Reference

Directly under the illuminator the following illuminance is calculated.    From Wordnik.com.  [3. Calculation of Illuminance] Reference

Initially, the oil was used as a lubricant for the railroad industry and as an illuminance.    From Wordnik.com.  [The Reckless Decade: America in the 1890s] Reference

The illuminance of special lighting may be up to 100% of the general lighting’s illuminance.    From Wordnik.com.  [6. Installation of emergency lighting systems] Reference

According to the measuring principle, similar instruments are applied to the measurement of illuminance and luminous density.    From Wordnik.com.  [4. Measurements at Lighting Installations] Reference

From the general requirements on physical measuring procedures it derives that the following requirements must be met by illuminance measurements.    From Wordnik.com.  [4. Measurements at Lighting Installations] Reference

It goes without saying that the general requirements in connection with illuminance measuring instruments also apply to luminous density measuring.    From Wordnik.com.  [4. Measurements at Lighting Installations] Reference

The size of the measuring errors has to be chosen in such way that it can be supposed that the illuminance value is constant in each measuring field.    From Wordnik.com.  [4. Measurements at Lighting Installations] Reference

If the value of illuminance shall be measured in certain check points, make sure that the measuring conditions are the same as with previous measurements.    From Wordnik.com.  [4. Measurements at Lighting Installations] Reference

For measuring the luminous density (surface brightness) also measuring instruments for illuminance may be used if simple additional instruments are applied.    From Wordnik.com.  [4. Measurements at Lighting Installations] Reference

Then, the lamp supply of each illuminator or the arrangement of the illuminators must be altered by the difference between the required and the calculated illuminance.    From Wordnik.com.  [3. Calculation of Illuminance] Reference

As far as possible, linear correlations between illuminance values and indication value of the measuring instrument or correction curves for the individual measuring ranges.    From Wordnik.com.  [4. Measurements at Lighting Installations] Reference

For the correct measuring of illuminance and luminous density values, however, it is necessary that the photoelectric receivers evaluate the light in the same way as the human eye.    From Wordnik.com.  [4. Measurements at Lighting Installations] Reference

A consequence of the putting into practice of so great an illuminance is that the luminance in the range of vision can no more be an optimal one, if no coloured surfaces are used in the working room.    From Wordnik.com.  [2. Elements] Reference

The illuminance required in a room or at a working place must be realized - according to the respective visual task - by a suitable number and type of lamps and lighting fittings and their arrangement.    From Wordnik.com.  [3. Calculation of Illuminance] Reference

By this method, the illuminance on a surface to be illuminated is calculated, with direct irradiation by the light source and without consideration of reflecting surrounding surfaces (spotlight effect).    From Wordnik.com.  [3. Calculation of Illuminance] Reference

Since the rated luminous flux is greater than the calculated one, it derives for the illuminance in point ‘P’: for high-pressure mercury vapour illumination 128 lx and for high-pressure sodium vapour illumination 139 lx.    From Wordnik.com.  [3. Calculation of Illuminance] Reference

The accuracy of the calculated luminous flux or of the calculated illuminance is influenced by the tolerances of the individual calculation factors such as the luminous flux of the illuminator, illuminator efficiency, light distribution curve.    From Wordnik.com.  [3. Calculation of Illuminance] Reference

The illuminance is given in lux; the range and precision of this value can vary from device to device.    From Wordnik.com.  [MoDaCo WinMo News] Reference

This provides information about the maximum illuminance of the light and is imprinted on the reflector.    From Wordnik.com.  [Automotive Headlines] Reference

The Light Sensor API gives an application access to the illuminance measured by the device's light sensor.    From Wordnik.com.  [MoDaCo WinMo News] Reference

I am using Radiance (Radtool) to generate illuminance and daylight factor values and importing it into a grid in Ecotect.    From Wordnik.com.  [All Discussion Groups: Message List - root] Reference

The Taos TCS3414 is a digital colour light sensor designed to derive accurately the colour chromaticity and illuminance (intensity) of ambient light.    From Wordnik.com.  [Electronicstalk - electronics industry news] Reference

She allows to eliminate all widespread problems arising at photographing, and to achieve a natural colour rendition, high detailing and optimal illuminance.    From Wordnik.com.  [AvaxHome RSS:] Reference

The Sunday Telegraph has conducted its own tests on level of illuminance provided by light bulbs from different manufacturers to see whether their claims stand up to scrutiny.    From Wordnik.com.  [Reason Magazine] Reference

You can also save energy by reducing the IESNA Handbook-recommended illuminance levels by improving the task contrast and size, which improves the viewer's visual performance.    From Wordnik.com.  [CSE - Top Articles] Reference

Larger size light sources can be measured by either attaching the BTS256-LED tester to a Gigahertz-Optik integrating sphere or by measuring illuminance using a screw-on diffuser window.    From Wordnik.com.  [LEDs Magazine Products] Reference

That's why blue LEDs are sometimes not used because for the same illuminance as say a red LED they cause more eye strain, from the light itself and the increased energy contrast from surrounding light sources.    From Wordnik.com.  [Latest Articles] Reference

Required illuminance according to Table 11.    From Wordnik.com.  [3. Calculation of Illuminance] Reference

Average illuminance required for the visual task.    From Wordnik.com.  [3. Calculation of Illuminance] Reference

E illuminance.    From Wordnik.com.  [10. Appendix] Reference

Service illuminance in lx.    From Wordnik.com.  [9. Commercial Lighting Fittings] Reference

//get the illuminance property value double lightLux = alsSensor.    From Wordnik.com.  [MSDN Blogs] Reference