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Lamp control method controlled by sensor

A control method and sensor technology, applied in energy-saving control technology, lamp circuit layout, lighting devices, etc., can solve problems such as short activation time, instability, and unreliable signals, and achieve the effect of improving work reliability and simple confirmation

Inactive Publication Date: 2006-09-13
LEDVANCE GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The problem with such fluorescent lamps is that the incidence of self-illumination is superimposed with the incidence of ambient light, so that the signal measured by the light sensor may be unreliable
[0005] However, there are problems in this known solution, for example, in winter, at low external temperatures, the activation time of fluorescent lamps will be considerably longer than in summer at high temperatures due to the lower mercury vapor pressure , so that in extreme conditions the delay predetermined by the delay element is shorter than the activation time adjusted at low temperatures, and this solution may also present the aforementioned instabilities in the control of the lamp

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Embodiment Construction

[0035] figure 1 A diagram of a fluorescent lamp 1 is shown. The lamp has a discharge vessel 2 , the end of which is fastened in a socket housing 4 . At the end of the housing 4 remote from the discharge vessel 2 there is a screw base 6 for screwing the fluorescent lamp 1 into a socket. Two infrared sensors 8 , 10 arranged radially to each other are arranged on the outer periphery of the lamp holder housing 4 , by means of which the infrared part of the incident light can be measured. A flat strip 12 marked with a dotted line is arranged inside the housing 4, on which two infrared sensors 8 and 10, a microprocessor 14, and common lamp control equipment, such as for controlling the discharge tube 2 The front joint equipment 16 (see figure 2 ). As will be explained in detail below, the microprocessor 14 can adjust and change certain switching thresholds according to the light incident on the sensors 8, 10 over time, thereby ensuring that the sensors are controlled according ...

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Abstract

A sensor-controlled lamp and a method for triggering it. The sensor signals are evaluated by means of a microprocessor, and on the basis of the change over time in the sensor signals, operating parameters of the lamp controller are changed or activated.

Description

technical field [0001] The invention relates to a control method of a sensor-controlled lamp and a sensor-controlled lamp. Background technique [0002] German Patent DE 195 14 973 A1 discloses a fluorescent lamp in which the upstream devices of the discharge tube of the fluorescent lamp are controlled on the basis of a signal from a light sensor, and the light incident on the surrounding environment is determined by means of the sensor. [0003] A problem in such fluorescent lamps is that the incidence of self-illumination and the incidence of ambient light superimpose on each other, so that the signal measured by the light sensor may be unreliable. The spectrum of the light emitted by the discharge tube will change after the lamp is started, because the infrared light part will become relatively high immediately after the start, and after a certain start time (activation time) will drop to a small , thus making the above problem more apparent. Therefore, in the case of u...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B37/02
CPCH05B37/0218Y02B20/46H05B47/11Y02B20/40
Inventor M·胡茨勒G·勒曼J·舒里格
Owner LEDVANCE GMBH