JPH0424567Y2 - - Google Patents

Description

[Detailed description of the invention] [Purpose of the invention] (Field of industrial application) The present invention is designed to prevent malfunctions caused by infrared rays from lamps in lighting equipment that lights lamps in response to infrared rays, such as sink lamps. This is what I did.

(Prior art) Conventionally, in sink lights, etc., a lighting device is provided in a part of the front of the appliance body, a lamp is attached, and a lamp is placed in a position away from the lamp in front of the device to blink the lamp in response to infrared rays from the human body. 2. Description of the Related Art A lighting device is known that is provided with a detection surface of an infrared sensor for control. When a human body approaches this sinking light,
The infrared rays emitted from the exposed part of the human body enter the detection surface of the infrared sensor and emit a signal, and this signal lights the lamp using the lighting device installed in the device body. When the person leaves, the infrared sensor Since no infrared rays are incident on the detection surface of the lamp, the lighting device is activated and the lamp is turned off.

(Problem to be solved by the invention) The infrared rays emitted from the lamp are reflected directly or around the area and enter the detection surface of the infrared sensor.
There is a risk that the lamp may react to infrared rays as if they were emitted from a human body and continue to light up even after the person has left.

[Structure of the idea]

(Means for solving the problem) The present invention uses a lamp, a lighting device, an infrared sensor that detects changes in the amount of heat in the human body and controls the blinking of the lamp, and a timer that controls the lighting of the lamp, just like a sink light. A lighting device that is integrated into the main body of the device, with a timer operation section protruding between the lamp on the front of the main body and the detection surface of the infrared sensor to block infrared rays from the lamp and eliminate malfunctions. It is.

(Function) Illumination lamps generally emit visible light and some infrared rays, and this visible light and infrared rays are radiated to the surroundings. When this infrared rays are incident on the detection surface of the infrared sensor, the sensor mistakenly recognizes that the infrared rays to be detected are incident and operates, and even after the incidence of the infrared rays to be detected has stopped, the lamp continues to be lit by the infrared rays incident from the lamp. Therefore, in the present invention, the operation section of the timer provided in this type of device is provided protruding between the detection surface of the infrared sensor and the lamp, and the infrared rays from the lamp are blocked by this operation section, thereby eliminating malfunctions. .

(Example) The details of the present invention will be explained by referring to the illustrated example. The figure shows an example of a sink lamp with a motion sensor to which the present invention is applied. In the figure, 1 is a horizontally long box-shaped appliance body, 2 is a lighting device provided in this appliance body 1, and 3 is a lighting device installed in the appliance body 1. A lamp provided in this lighting device 2,
Reference numeral 4 denotes an infrared sensor disposed at a position apart from the lighting device 2 on the front surface of the appliance body 1, and 5 denotes a timer such as a delay timer provided in the appliance body 1 between the infrared sensor 4 and the light emitting section 2. It is.

The lighting device 2 includes, for example, a quadratic curved reflector 21
is buried in the front surface 11 of the instrument body 1 and its opening surface 2
A pair of fluorescent lamp sockets 23, 23 are provided at both ends of the reflector plate 21, and a lamp 3, that is, a straight fluorescent lamp is mounted thereon. A lighting member 24 such as a ballast is provided inside.

The infrared sensor 4 is, for example, a pyroelectric sensor, and includes a detection surface 41 that is provided on the front surface 11 of the instrument body 1 and receives infrared rays, and a calculation section 42 that processes signals emitted from the detection surface 41. Then,
The operating principle is the pyroelectric effect, that is, when a polarized ferroelectric pair is in thermal equilibrium, the surface charge is ±0, which means that no electrical change occurs.
When a sudden change to an unbalanced state occurs, the charge balance on the surface is disrupted and a voltage is generated. When infrared rays are incident on the detection surface 41, a voltage is generated, and this voltage is transmitted to the calculation unit 42 provided in the instrument body 1. The light is processed by the computer and a lighting signal is issued.

The timer 5 is configured to operate a timer body 52 provided inside the instrument body 1 by means of an operating portion 51 protruding from the front surface 11 of the instrument body.

The feature of the present invention is that the operating section 51 is provided protrudingly between the detection surface 41 and the lamp 3.

When a person approaches this sink lamp, infrared rays emitted from the exposed part of the human body are detected by the detection surface 41 of the infrared sensor 4.
incident on . Then, the detection surface 41 of the infrared sensor 4
generates a voltage in response to this incident infrared rays, and in response to this voltage, the calculation section 42 issues a lighting signal, the lighting member 24 operates to light the lamp 3, and at the same time the delay timer 5 enters the standby state. Therefore, simply when a person approaches, the lamp 3 lights up and illuminates the area ahead.

Further, when the person leaves, infrared radiation from the human body disappears, so that infrared rays no longer enter the detection surface 41 of the infrared sensor 4, and the calculation unit 42 issues a stop signal. Then, the delay timer 5 is activated, and the lighting current is continuously supplied for the specified time, and the light is turned off after a predetermined time.

Therefore, in this embodiment, the reflector 21 of the lighting device 2 is provided on the front surface 11 of the appliance body 1, and the operating section 51 of the delay timer 5 is provided protrudingly between the lamp 3 and the detection surface 41 of the infrared sensor 4. Since it has been
Even if light or infrared rays from the lamp 3 are directly radiated to the side, or if infrared rays are secondarily emitted from the opening of the reflector 21 due to the light or infrared rays from the lamp 3, these infrared rays will cause the delay timer 5 to emit infrared rays. Operation unit 51
The detection surface 41 of the infrared sensor 4 is blocked by
The infrared sensor 4 does not malfunction, and it reliably detects that a person has left and turns off the light.

In addition, although a reflector was provided as a lighting device in the above-mentioned embodiment, the present invention is not limited to this, and for example, a socket may be provided directly on the front surface of the device body.
The lamp may also be covered with a cover. moreover,
The lamp may be an incandescent bulb. Furthermore, the infrared sensor does not have to be of the pyroelectric type described above.

Therefore, there is no limitation to the usage of the lighting device to which the present invention is applied.

[Effect of idea]

As described above, the lighting device of the present invention has a lamp, a lighting device, an infrared sensor that detects and controls blinking of the lamp based on changes in the amount of heat in the human body, and a timer that controls the lighting of the lamp, all of which are integrated into the main body of the device. , the detection surfaces of the lamp and infrared sensor are spaced apart from each other on the front of the instrument body, and the timer operation part is protruded between them, so the infrared rays from the lamp are blocked by the timer operation part, and the infrared sensor is No more malfunctions.

[Brief explanation of the drawing]

FIG. 1 is a front view of one embodiment of the lighting device of the present invention, and FIG. 2 is a sectional view of the same. DESCRIPTION OF SYMBOLS 1... Apparatus main body, 2... Lighting device, 21... Reflection plate, 23... Socket, 24... Lighting member, 3
... lamp, 4 ... infrared sensor, 41 ... detection surface, 5 ... delay timer, 51 ... operation section.

Claims (1)

[Scope of utility model registration request] A lighting device comprising a lamp, a lighting device, an infrared sensor that detects and controls the blinking of the lamp based on a change in the amount of heat in the human body, and a timer that controls the lighting of the lamp, which are integrally provided in the main body of the device. A lighting device characterized in that a detection surface of a sensor is arranged at a distance from the front surface of the device main body, and an operating section of the timer is provided protrudingly between them.