Introduction

The calibration method consists in comparing the value of a reference illumination with the value displayed on the luxmeter which is to be calibrated.

Figure 2 illustrates the device used for calibration.

The required device consists of:

• The required device consists of:

• a standard lamp of known luminous intensity IL

• the luxmeter that will be calibrated.

The device provides an illumination which can be adjusted by the distance D separating the lamp from the luxmeter and which is spatially uniform on the receptive surface of the luxmeter.