Patent ID: 8410706
Filing Date: 2013-04-02
Classification: G01J,H05B,Y02B

Abstract:
1. A method of calibrating a daylight sensor for measuring a light intensity in a space, the daylight sensor operating as part of a lighting control system that comprises a dimmer switch for controlling a present light intensity of a lighting load, so as to control a total light intensity on a task surface in the space, the method comprising the steps of: placing the daylight sensor on the task surface; displaying on a visual display on the daylight sensor a representation of the total light intensity measured by the daylight sensor; adjusting the present light intensity of the lighting load until the visual display on the daylight sensor displays a representation of the target task surface light intensity; actuating a button on the daylight sensor; measuring the total light intensity at the daylight sensor in response to the actuation of the button on the daylight sensor; the daylight sensor subsequently transmitting the total measured light intensity to the dimmer switch; the dimmer switch subsequently calculating a daylight gain in response to the total light intensity measured by the daylight sensor and the present light intensity of the lighting load; and the dimmer switch subsequently determining a new light intensity for the lighting load in response to the daylight gain and the total light intensity measured by the daylight sensor.