JPH0441480B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a guide light device used for evacuation guidance in an emergency.

Traditionally, in order to make guide light equipment more visible,
The above-mentioned method can be used to intermittently blink a guide light made up of continuously lit lighting equipment such as a fluorescent lamp, or to use a flash generator such as a xenon flash that generates high-intensity and rapidly changing light. Devices have been developed that are built into the light or placed near the guide light. however,
If the blinking of the guide light itself and the light emission of the flash light generator are completely unrelated, there is a problem that when a flash occurs, the light from the guide light itself is wasted.
Furthermore, even if the guide light is turned on immediately after the flash occurs, there is a problem in that it is difficult to recognize the light from the guide light due to the afterimage effect, which is a characteristic of human visual perception.

The present invention has been made to solve these conventional problems, and it is an object of the present invention to provide a guide light fixture that is conspicuous and allows the displayed contents to be easily recognized.

The configuration of the present invention will be described below with reference to illustrated embodiments. FIG. 1 is a block diagram of one embodiment of the present invention, in which the voltage of a commercial power source 1 is normally applied to a fluorescent lamp 3 via a lighting circuit 2. In FIG. Reference numeral 4 denotes a charger, which constantly charges the storage battery 5 during non-power outages. When the AC power supply 1 experiences a power outage, the power outage detection section 10 operates and the switching contacts 6 and 7 are switched to the normally open side NO or the normally closed side NC.
This causes the inverter oscillator 8 to start oscillating, and its oscillation output is applied to the fluorescent lamp 3 via the diode bridge 9 and the switching contact 7, causing the fluorescent lamp 3 to be lit at high frequency. This diode bridge 9 is turned on and off in an alternating current manner by controlling the opening and closing of a contact 11a by an oscillation control section 11. Therefore, during a power outage, the fluorescent lamp 3 flickers at a period determined by the oscillation control section 11. The period of this flickering lighting is set to about 1 to 15 Hz so that the flickering can be recognized by the human eye. The most preferable period is about 2 Hz. On the other hand, 12 is an oscillator for lighting the xenon lamp 13. When the oscillator 12 generates a trigger signal from the trigger section 14 when sufficient discharge energy is accumulated, the xenon lamp 13 will generate a flash. It's getting old. 15 is a delay timer section;
The output of the oscillation control section 11 is supplied to the trigger section 14 with a slight delay, so that the timing of flashing light from the xenon lamp 13 and the timing of light emission from the fluorescent lamp 3 do not overlap. FIG. 2 shows the arrangement relationship between the fluorescent lamp 3 and the xenon lamp 13.
By arranging the xenon lamp 13 very close to the guide light fixture 16 and causing the xenon lamp 13 to emit light, it is possible to easily find the location where the guide light fixture 16 is present.

FIG. 3 shows a specific circuit configuration of the above embodiment. In the figure, 10a is a power failure detection unit 1
This is a power failure detection relay for configuring 0, and when a power failure occurs in the commercial power supply 1, the contacts 6 and 7 are switched from the normally open side NO to the normally closed side NC. A lighting circuit 2 for a fluorescent lamp 3 is connected to the commercial power source 1 via a power switch SW, and this lighting circuit 2 is composed of a current limiting inductance L, a glow lamp G, and a capacitor C for noise prevention. ing. Power switch SW during non-power outage
is normally closed, so the fluorescent lamp 3 is always on. In addition, during non-power outage, the AC voltage of the commercial power supply 1 is
The voltage is stepped down by a transformer T, full-wave rectified by a diode bridge DB, and the rectified output of this diode bridge DB is current-limited by a current-limiting resistor R to charge the storage battery 5. be. On the other hand, during a power outage of the commercial power supply 1, the contact 6 is switched to the normally closed side NC, and the DC voltage of the storage battery 5 is applied to the oscillation control section 11 and the like. A reference voltage divided by resistors R 1 and R 2 is applied to one input terminal of a comparator Q ₁ provided in the oscillation control section 11, and a reference voltage divided by resistors R _{1 and} R ₂ is applied to the other input terminal. Terminal voltage is applied. Variable resistors VR ₁ and VR ₂ and diodes D ₁ and D ₂ for feedback oscillation are connected to this capacitor C ₁ , and capacitor C ₁ is charged via the diode D ₁ and variable resistor VR ₁ . Further, the discharge is made through a diode _D2 and a variable resistor _VR2 . By changing the values of variable resistors VR ₁ and VR ₂ , the charging and discharging speed of capacitor C ₁ is changed,
The oscillation period of comparator _Q1 can be changed. Figure 4 a shows this comparator Q ₁
The oscillation output waveform of is shown. Comparator Q ₁
When the output of the transistor is at L level, the transistor
Since T _r1 is turned off and transistor T _r2 is turned on, the diode bridge 9 becomes AC conductive, and the oscillation output of the inverter oscillation section 8 becomes the fourth
The voltage is applied to the discharge lamp 3 as shown in Figure e. The inverter oscillation unit 8 includes a transistor _Tr3 and an oscillation transformer _OT1 , and is adapted to perform self-oscillation operation using the DC power supply voltage supplied from the storage battery 5. The oscillation transformer OT ₁ has a feedback winding N ₃ of a primary winding N ₁ and a secondary winding N ₂ , and a heater winding N _H , and the output of the heater winding N _H is the output of the fluorescent lamp 3. is supplied to the heater. Next 1
2 is an oscillation unit having a transistor T _r4 and an oscillation transformer OT ₂ , which performs self-oscillation operation using the DC power supply voltage supplied from the storage battery 5;
The output of the oscillating transformer OT ₂ is rectified by the diode D ₃ and connected to the capacitor as shown in Figure 4b.
Charged to C ₂ . A xenon lamp 13 is directly connected to both ends of the capacitor C ₂ , and when the trigger circuit 14 is activated, the charge in the capacitor C ₂ is rapidly discharged to the xenon lamp 13 as shown in FIG. 13 emits a flash of light. The charging voltage of capacitor C ₂ is divided by resistors R ₃ and R ₄ , and then connected to the comparator.
Applied to one input terminal of Q ₂ . A voltage obtained by dividing the reference voltage generated by the Zener diode ZD is applied to the other input terminal of the comparator _Q2 . and capacitor C ₂
When the charging voltage of the transistor is low, the output of the comparator _Q2 becomes H level, which causes
T _r5 and T _r6 become conductive and the oscillation section 12 performs oscillation operation. Conversely, when the charging voltage of the capacitor C ₂ becomes high, the output of the comparator Q ₂ becomes L level, and the transistors Tr ₅ and Tr ₆ is turned off, and the oscillation operation of the oscillation section 12 is stopped. Next, the delay timer section 15 is provided with a capacitor _C3 , which is charged as shown in FIG. 4c when the output of the comparator _Q1 becomes H level. And with PUT16
The timer circuit consisting of CR element operates and PUT10
When conductive, the charge in the capacitor _C3 flows between the gate and cathode of the thyristor S through the transistor _Tr7 , triggering the xenon lamp 13, and the charge in the capacitor _C2 causes the xenon lamp 13 to generate a flash of light. This is what we are used to doing. With the above configuration, _the xenon lamp 13 emits flash light _only during the period _T1 , as shown in FIG. lights up, t ₁ and t ₃
The fluorescent lamp 3 can be turned off during the period. Therefore, the fluorescent lamp 3 will not be turned on while the xenon lamp 13 is flashing, and the power of the storage battery 5 will not be wasted.

FIGS. 5 a to 5 c are diagrams showing the lighting period of the fluorescent lamp 3 and the flashing period of the xenon lamp 13. By shortening the lighting period t ₂ of the fluorescent lamp 3 in the extinguishing period T ₂ of the xenon lamp 13, xenon lamp 13
and fluorescent lamp 3 are turned on alternately. In other words, by shortening the lighting period of the xenon lamp 13 during the period when the fluorescent lamp 3 is turned off,
3 and fluorescent lamp 3 will be turned on alternately. In this case, as shown in Figure 5c, the brightness as seen by the naked eye will intermittently alternate between bright and dark states as a whole, making it very noticeable, and the current consumption can also be reduced. In order to make the bright and dark states stand out, it goes without saying that the xenon lamp 13 needs to generate a flash of light at least during the period when the fluorescent lamp 3 is turned off and no afterimage effect of the fluorescent lamp 3 occurs.

As described above, the present invention provides a lighting device in which a discharge lamp that can be lit continuously and a flash type discharge lamp that instantaneously generates flash light are arranged side by side, and the discharge lamp is blinked at a cycle that allows flickering to be recognized. This lighting device is equipped with a flash generator that generates a flash of light from the flash discharge lamp at least during the discharge lamp's non-lighting period, at least when no afterimage effect of the discharge lamp occurs. The location of the guide light equipment can be easily found due to the intermittent flashes caused by the electric lights and the flickering of the discharge lamps, and furthermore,
Since the flash is generated by the flash-type discharge lamp at least during the period when the discharge lamp is not on, at least when the afterimage effect of the discharge lamp does not occur, there is no flash during the period when the discharge lamp is on. A period in which both the discharge lamp and the flash-type discharge lamp are turned off can be provided between the periods in which each discharge lamp is turned on, which makes the bright and dark conditions stand out, making the guide light equipment very conspicuous. Since the lighting period of each discharge lamp can be shortened, there is an advantage that current consumption can also be reduced.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of a guide light fixture according to an embodiment of the present invention, FIG. 2 is a front view showing the appearance of the same guide light fixture, FIG. 3 is a specific circuit diagram of the same above, Figures a to e are time charts showing the same operations as above, and Figures a to e are explanatory diagrams of the same operations. 3 is a fluorescent lamp, 11 is an oscillation control section, 13 is a xenon lamp, and 15 is a delay timer section.

Claims (1)

[Claims] 1. A discharge lamp that can be lit continuously and a flash-type discharge lamp that momentarily generates a flash are installed side by side, and a lighting device that blinks the discharge lamp at a cycle that allows perceivable flickering, and a lighting device that is synchronized with this lighting device. What is claimed is: 1. A guide light fixture comprising: a flash light generating device for generating flash light from a flash type discharge lamp at least during a period when the discharge lamp is out of operation, at least when no afterimage effect of the discharge lamp occurs.