JP2010170737A - Lighting fixture - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lighting fixture capable of illumination control friendly to people. <P>SOLUTION: The lighting fixture 10 is provided with a light source 12 and a human sensor 18, and controls the lighting of the light source 12 and warns lighting-off caused by the end of a lighting retention time of the light source 12. A means for warning the lighting-off caused by the end of the lighting retention time instantaneously puts off the light source 12. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a lighting fixture that has a human sensor and controls lighting based on detection of the human sensor.

  2. Description of the Related Art Conventionally, some lighting fixtures used in, for example, toilets are equipped with human (infrared) sensors. Such lighting fixtures are designed to save energy by automatically turning on when entering the toilet and automatically turning off after use of the toilet to turn off useless lights.

  In such lighting fixtures, a dimming lamp is used to notify the user that the lighting time will be turned off soon at the end of the holding time, and the function to hold the lighting time to some extent after detecting a person with a human sensor so that it will not turn off when using the toilet. The function of detecting the movement of the person by encouraging the user's movement by changing darkly.

  As an example of a conventional lighting fixture, there is one in which the lighting lamp is blinked only for a certain time immediately before the lighting lamp is turned off (for example, see Patent Document 1).

Japanese Utility Model Publication No. 7-30497 (FIG. 1, claim 1)

  However, in the luminaire disclosed in Patent Document 1, the illuminating lamp is blinked for a certain time immediately before the illuminating lamp is turned off at the end of the holding time.

  For this reason, the illumination lamp is always turned off after blinking. Thereby, even if there is a person's movement during the blinking time, the illumination lamp is only turned off, and the user-friendly movement is not desired because the usability is not good.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a lighting apparatus capable of performing lighting control that is easy on humans.

  A lighting fixture according to the present invention includes a light source and a human sensor, controls lighting of the light source, and warns turning off due to the end of the lighting holding time of the light source. The means for warning that the light is extinguished upon completion is characterized in that the light source is turned off instantaneously.

In the present invention, the light source is turned on after being momentarily turned off just before the preset lighting holding time ends.
As a result, it does not darken just before the lighting holding time ends, and if there is a person's movement just before the lighting holding time ends, it is illuminated with a sufficient amount of light without inconvenience by turning on after turning off the light. be able to.
Therefore, it is possible to perform lighting control that is easy on humans.

  The luminaire according to the present invention is characterized in that, in the luminaire described above, the instantaneous turn-off of the light source is repeated continuously.

In the present invention, the light source repeats instantaneous light extinction just before the preset lighting holding time ends.
Thereby, it does not become dark just before the lighting holding time ends, and when there is a person's movement just before the lighting holding time ends, the lighting is performed after the lights are continuously turned off.
Therefore, it is possible to illuminate with a sufficient amount of light without inconvenience and to clearly promote the transition to turning off.

According to the lighting fixture of the present invention, the light fixture has a light source and a human sensor, controls the illumination of the light source, and warns that the light source is turned off when the lighting holding time of the light source ends. The means for warning that the light is turned off due to the end of the lighting holding time turns off the light source instantaneously.
Thereby, it has the effect that lighting control friendly to a person can be performed.

The external appearance perspective view seen from diagonally downward of the lighting fixture of 1st Embodiment which concerns on this invention The bottom view around the human sensor in the lighting fixture shown in FIG. (A) is a longitudinal sectional view of the human sensor shown in FIG. 2, and (B) is a bottom view of (A). Circuit configuration diagram of the lighting fixture shown in FIG. The time chart explaining the operation | movement in the lighting fixture shown in FIG. The time chart explaining operation | movement in the lighting fixture of 2nd Embodiment which concerns on this invention

  Hereinafter, the lighting fixture which concerns on several embodiment of this invention is demonstrated with reference to drawings.

(First embodiment)
As shown in FIG. 1, the lighting fixture 10 which is 1st Embodiment of this invention is equipped with the fixture main body 11 which is a shade, the light source 12 which is a bulb-type fluorescent lamp, and the sensor part 13, and is a house etc. It is attached to the ceiling surface 1 of the toilet.

  The instrument main body 11 is formed in a cylindrical shape, and includes a power supply unit (see FIG. 4) 14 and a control unit (see FIG. 4) 15 therein. The instrument main body 11 is equipped with a light source 12 at the center thereof.

  The light source 12 is a light bulb type fluorescent lamp that cannot perform dimming control. A general incandescent lamp can also be applied as the light source 12.

  The sensor unit 13 is assembled to the side portion of the instrument body 11, and the lighting brightness setting knob 16 and the lighting holding time setting knob 17 set by the user are exposed and arranged.

  As shown in FIG. 2, the sensor unit 13 includes, for example, a transparent sensor lens 20 that includes a human sensor (see FIG. 3) 18 and a brightness sensor (see FIG. 3) 19 at the center of the escutcheon 21. ing. The lighting brightness setting knob 16 and the lighting holding time setting knob 17 are arranged on the side of the sensor lens 20.

  As shown in FIGS. 3A and 3B, the sensor unit 13 has a human sensor 18 and a brightness sensor 19 mounted on a sensor substrate 22, and a sensor lens 20 is fixed to the sensor substrate 22. ing.

  As shown also in FIG. 4, the power supply unit 14 and the control unit 15 built in the instrument main body 11 are electrically connected to the AC commercial power supply AC and the light source 12.

  The power supply unit 14 and the control unit 15 are electrically connected to the setting unit 23 and the sensor unit 13. The setting unit 23 includes a lighting brightness setting circuit 24 having a lighting brightness setting knob 16 and a lighting holding time setting circuit 25 having a lighting holding time setting knob 17.

  The human sensor 18 is, for example, an infrared sensor, and transfers a human detection signal to the control unit 15 when a positive variation occurs in the amount of change in heat within the detection range.

  The brightness sensor 19 is a solar radiation sensor, for example, and transfers the solar radiation amount measurement value within the detection range to the control unit 15.

  The lighting brightness setting circuit 24 can be changed to an arbitrary brightness setting value Ln such as 10Lx to 60Lx by rotating the lighting brightness setting knob 16.

  The lighting holding time setting circuit 25 rotates the lighting holding time setting knob 17 so that the lighting holding time tn from when the human detection signal given by the human sensor 18 disappears until the light source 12 is turned off, For example, it can be set to an arbitrary time such as 30 s to 180 s.

  When the human detection signal is given from the human sensor 18, the control unit 15 drives the light source 12 at the brightness level set by the lighting brightness setting circuit 24, and the current amount of solar radiation given from the brightness sensor 19. The measured value is compared with the brightness setting value set by the lighting brightness setting circuit 24.

  Specifically, the control unit 15 supplies the drive current to the light source 12 so as to increase the irradiation amount when the measured solar radiation amount of the brightness sensor 19 is lower than the brightness setting value set by the lighting brightness setting circuit 24. To do.

  In contrast to this, the control unit 15 supplies a driving current to the light source 12 so as to decrease the irradiation amount when the measured amount of solar radiation of the brightness sensor 19 is higher than the brightness setting value set by the lighting brightness setting circuit 24. Supply.

  When the human detection signal from the human sensor 18 disappears, the control unit 15 subtracts a predetermined time 6 s (seconds) from the lighting holding time tn set by the lighting holding time setting circuit 25, for example, 0. .2 s (seconds) is turned off instantaneously, and then the light source 12 is illuminated with the brightness set value Ln.

  When the lighting holding time tn set by the lighting holding time setting circuit 25 elapses, the control unit 15 stops the supply of the drive current to the light source 12 and turns it off.

  When the human detection signal is given again from the human sensor 18 until the subtraction of the lighting holding time tn set by the lighting holding time setting circuit 25 is completed, the control unit 15 sets the lighting holding time setting circuit 25. The subtraction process of the new lighting holding time tn that has been performed is started again.

  Then, the control unit 15 performs instantaneous extinction of, for example, 0.2 s (seconds) at a time obtained by subtracting a predetermined time 6 s (seconds) from the lighting holding time tn set by the lighting holding time setting circuit 25. Thereafter, the light source 12 is illuminated with the brightness setting value Ln, and when the lighting holding time tn set by the lighting holding time setting circuit 25 elapses, the supply of the drive current to the light source 12 is stopped. And turn it off.

  It should be noted that the time for which the instantaneous turn-off is performed is more easily recognized by the user as the turn-off time is longer. However, since the light is turned off during that time, there is a possibility that it may become dark and give anxiety depending on the installation location. Therefore, as a result of the sensitivity evaluation using three types of time of 0.2s (seconds), 0.4 s (seconds), and 0.6 s (seconds), the optimal time when there is no anxiety that becomes dark is 0. 2 s (seconds).

  Next, operation | movement of the lighting fixture 10 is demonstrated.

  As shown in FIG. 5, when a person enters the toilet, the human sensor 18 generates a human detection signal at time ta and transfers the human detection signal to the control unit 15.

  As a result, the control unit 15 drives the light source 12 at the brightness level set by the lighting brightness setting circuit 24 based on the human detection signal given from the human sensor 18, and the brightness of the light output Ln by the light source 12. Illuminate with.

  When the human task is completed and the human sensor 18 does not generate a human detection signal at time tb, the control unit 15 starts subtraction processing of the lighting holding time tn set by the lighting holding time setting circuit 25. Then, at time tc obtained by subtracting a predetermined time 6 s (seconds) from the lighting holding time tn, the control unit 15 performs instantaneous light extinction, for example, 0.2 s (seconds), and thereafter, the light output Ln of the light source 12 is Illuminate with brightness.

  Then, when the lighting holding time tn set by the lighting holding time setting circuit 25 has elapsed at time td, the control unit 15 stops supplying the drive current to the light source 12 and turns off the light source 12.

  At this time, the controller 15 subtracts a predetermined time 6 s (seconds) from the lighting holding time tn set by the lighting holding time setting circuit 25, and from the time tc to the time td, the human sensor 18 When the detection signal is given again, the control unit 15 starts again the subtraction process of the new lighting holding time tn set by the lighting holding time setting circuit 25.

  Thus, in the same manner as described above, the light source 12 performs instantaneous light extinction of, for example, 0.2 s (seconds) at a time obtained by subtracting a predetermined time 6 s (seconds) from the lighting holding time tn, and then the light output Ln Illuminate at the brightness of.

In the luminaire 10 according to the first embodiment, the light source 12 is turned on after being momentarily turned off just before the preset lighting holding time tn ends.
Thereby, it does not become dark just before the lighting holding time ends, and when there is a person's movement just before the lighting holding time tn ends, it is sufficient that there is no inconvenience without turning dark after turning off the light. Illumination can be performed with a sufficient amount of light.
Therefore, it is possible to perform lighting control that is easy on humans.

(Second Embodiment)
Next, the lighting fixture of 2nd Embodiment of this invention is demonstrated. In the following second embodiment, since there is no difference in structure from the first embodiment, only the operation will be described.

  As shown in FIG. 6, in the lighting apparatus 40 according to the second embodiment of the present invention, when a person enters the toilet, the human sensor 18 generates a human detection signal at time ta, Transfer to the control unit 41.

  As a result, the control unit 41 drives the light source 12 at the brightness level set by the lighting brightness setting circuit 24 based on the human detection signal given from the human sensor 18, and the brightness of the light output Ln by the light source 12. Illuminate with.

  When the human task is completed and the human sensor 18 does not generate a human detection signal at time tb, the control unit 41 starts subtraction processing of the lighting holding time tn set by the lighting holding time setting circuit 25. Then, at time tc obtained by subtracting a predetermined time 6 s (seconds) from the lighting holding time tn, the control unit 41 performs instantaneous light extinction, for example, 0.2 s (seconds), and then the light output Ln of the light source 12 is Illuminate with brightness.

  Then, the control unit 41 performs illumination with the brightness of the light output Ln from the light source 12 during, for example, 0.6 s (seconds) from the time tc, and at time tc ′ 0.8 s (seconds) after the time tc. For example, the instantaneous turn-off of 0.2 s (seconds) is performed again, and then the illumination with the light output Ln brightness by the light source 12 is performed.

  Thereafter, when the lighting holding time tn set by the lighting holding time setting circuit 25 elapses at time td, the control unit 41 stops supplying the drive current to the light source 12 and turns off the light source 12.

  As described above, the lighting fixture 40 repeats the instantaneous turn-off twice at the time tc obtained by subtracting the predetermined time 6 s (seconds) from the lighting holding time tn and the subsequent time tc ′.

  Note that 0.6 s (seconds) at which the light is repeatedly turned off is for sufficiently preheating the fluorescent lamp filament when the light bulb-type fluorescent lamp as the light source 12 is restarted. The lighting time after lighting needs to be set according to the circuit of the light bulb type fluorescent lamp.

In the lighting fixture 40 of 2nd Embodiment, the light source 12 repeats instantaneous light extinction twice just before the preset lighting holding time tn is complete | finished.
Thereby, it does not become dark just before the lighting holding time ends, and when there is a person's movement just before the lighting holding time tn ends, the lighting is performed after continuous turn-off.
Therefore, it is possible to illuminate with a sufficient amount of light without inconvenience and to clearly promote the transition to turning off.

  In addition, the instrument main body 11, the light source 12, etc. which were used in each said embodiment are not limited to what was illustrated, and can be changed suitably.

DESCRIPTION OF SYMBOLS 1 Ceiling surface 10, 40 Lighting fixture 12 Light source 18 Human sensor

Claims (2)

In a lighting fixture that has a light source and a human sensor, controls illumination of the light source, and warns turning off due to the end of the lighting holding time of the light source.
The lighting device characterized in that the means for warning the extinction due to the end of the lighting holding time momentarily turns off the light source.   The lighting apparatus according to claim 1, wherein the instantaneous turn-off of the light source is repeated continuously.

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