JPH04269494A - Lighting device - Google Patents

Abstract

PURPOSE:To operate an electric lamp so as to provide a comfortable brightness from a human activity to sleep. CONSTITUTION:A variable resistor VR1 and the contact ry2 of a relay Ry2 are connected in series to an electric lamp 4. The contact ry2 is controlled by a lighting mode control means 7. The variable resistor VR1 is regulated to set the light output level of the electric lamp 4 to an optional level. When a fluorescent lamp 1 is switched to the electric lamp 4, a transistor Q2 is on, whereby the relay RY2 is driven to turn on the contact Thus, the electric lamp 4 outputs a light at the level set by the variable resistor VR1.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting device for a lighting fixture having a fluorescent lamp and a light bulb.

0002

2. Description of the Related Art Conventionally, lighting fixtures having fluorescent lamps have been controlled by a pull cord or a remote control through operating modes such as turning on the fluorescent lamp, turning on the bulb, and turning off the lamp. In addition, for dimmable lighting equipment, incandescent lamps, etc. can be dimmed, and the operation switch can be used to turn them on and off.
Three types of switches, ``dim light bright'' and ``dim dark'', were used to control brightness, dimming, and turning on and off.

0003

[Problems to be Solved by the Invention] Recently, lighting fixtures have become more sophisticated, and fixtures that combine the above two types of "on/off of fluorescent lamps" and "dimming of incandescent lamps" have appeared. However, these operations basically operate separately and are a combination of the above two types. For example, if this light bulb (incandescent lamp) is a miniature bulb, and the lighting changes from a fluorescent lamp to a miniature bulb, the light output decreases from the brightness of the fluorescent lamp to the brightness of the miniature bulb, and then It feels dark, but there was a problem that the brightness of the bean bulb itself was too bright when sleeping.

[0004] Also, when transitioning from lighting the light bulb to turning off the light,
When a light-off signal is received from a normal miniature bulb that is lit, the second miniature bulb-equivalent lighting circuit is lit for a short time and has a delay function to switch from the miniature bulb lighting mode to the light-off mode. There are some. However, in this example, the function was insufficient for the activity to sleep operation in the light bulb lighting mode.

[0005] The present invention has been provided in view of the above-mentioned points, and upon receiving a mode switching signal from lighting a fluorescent lamp to lighting a light bulb, the operation of the light bulb changes from human activity to sleep to a comfortable brightness. It is an object of the present invention to provide a lighting device as described above.

[0006]

[Means for Solving the Problems] The present invention provides a light output level setting means that can arbitrarily set the light output level when the light bulb is turned on, and a light output level that changes the light output level of the light bulb to a set level when switching to lighting the light bulb. and control means. Further, in a second aspect of the present invention, there is provided a control means for varying the light output level of the light bulb up to 0 in response to a signal for switching the light bulb from being turned on to being turned off.

[0007] In claim 3, when the light bulb is switched on, the light output level of the light bulb is made variable up to a set light output level, and upon receiving a switching signal to turn off the light bulb, the light output level is adjusted to 0. It is equipped with a control means for varying the .

[0008]

[Function] The light output level setting means allows the light output level of the light bulb to be set arbitrarily, and the control means allows the light output level of the light bulb to be varied up to the set level when the light bulb is switched on. I have to. Additionally, in response to a signal to switch the light bulb from on to off, the light output level of the light bulb is varied down to 0 and gradually dimmed, thereby adding a delay function.

Further, when the light bulb is switched on, the light output level of the light bulb is made variable up to a set light output level, and upon receiving a switching signal to turn off the light bulb, the light output level is made variable up to 0. By gradually darkening the image, a delay function is added.

0010

Embodiments Hereinafter, embodiments of the present invention will be described with reference to the drawings. 2 shows an overall block circuit diagram of the first embodiment of FIG. 1. FIG. A stabilizing element L is connected to the commercial power supply Vs, a fluorescent lamp 1, a glow bulb 2 connected to the secondary side of the fluorescent lamp 1, and a contact r of the relay Ry1.
Fluorescent lamp lighting circuit 3 configured by connecting y1 in series, light bulb 4, variable resistor VR1 and relay R from commercial power supply Vs
It consists of a light bulb lighting circuit 5 constructed by connecting contacts ry2 of y2 in series.

In the fluorescent lamp lighting circuit 3, when the contact ry1 is open, the fluorescent lamp 1 is disconnected from the power source and turned off, and when the contact ry1 is closed, the glow bulb 2 is closed via the stabilizing element L. Because of this, current flows through the filament of the fluorescent lamp 1, heating it. Thereafter, the glow bulb 2 is opened due to self-heating, and a voltage of L (di/dt) is generated at both ends of the fluorescent lamp 1 by the stabilizing element L according to the interrupted current value, and the fluorescent lamp 1 is turned on.

Further, in the light bulb lighting circuit 5, the contact point r
When y2 is open, the light bulb 4 does not light up because the power is cut off as in the case of the fluorescent lamp lighting circuit 3. When the contact ry2 is closed, the series circuit of the light bulb 4 and the variable resistor VR1 is connected to the commercial power source Vs, and current flows through the light bulb 4, causing the light bulb 4 to light up. At this time, the light output of the light bulb 4 is variable by the variable resistor VR1. When this variable resistor VR1 is used, when this resistance value decreases, the circuit resistance decreases, the circuit current increases, and the voltage is divided by the resistance value of the bulb 4 and the variable resistor VR1.
The voltage applied to the bulb 4 also increases, the power of the bulb 4 increases, and the light output increases. When the resistance value of the variable resistor VR1 increases, the opposite effect occurs and the optical output decreases. This situation is shown in FIG. Note that this variable resistor VR1 constitutes optical output level setting means.

Next, a circuit for controlling the blinking of the fluorescent lamp 1 and the light bulb 4 will be explained. A power supply circuit 6 is constituted by a transformer T1 connected to a commercial power supply Vs, a diode bridge DB1, a capacitor C1, a power supply regulator Reg, a capacitor C2, etc., and provides the power required by the lighting mode control means 7 and drives the relays Ry1 and Ry2. Supplying power.

The lighting mode control means 7 is constructed as shown in FIG. 2, and an input determination circuit 71 detects an input change from the on state to the off state of the normally closed switch SW1, and detects chattering of the signal. After passing through the chattering avoidance means 72 to remove it, the output mode of OUT1 and OUT2 to the switch SW1 as shown in FIG. 3 is controlled by the output state forming means 73 and the output means 74.

In FIG. 3, (a) is the switch SW1.
(b) shows the signal of OUT1, (c) shows the signal of O
The signals of UT2 are shown respectively. That is, switch S
Every time W1 is operated, signals OUT1 and OUT2 and an off signal are output. When the signal OUT1 is at the L level, the transistor Q1 is off and the relay Ry1 is inactive, as shown in FIG. 1, and when the signal OUT1 is at the H level, the transistor Q1 is turned off.
is turned on, and relay Ry1 is excited. Therefore, contact ry1 of relay Ry1 is closed. A similar operation is performed for the signal OUT2.

With this circuit, while the fluorescent lamp 1 is on,
When a signal from the switch SW1 is input, the lighting mode control means 7 detects this signal and lights the light bulb 4 through OUT2. The lighting level of the light bulb 4 at this time can be arbitrarily set by the variable resistor VR1. Note that this circuit is used to turn on the light bulb 4 for commercial use. Further, the lighting mode control means 7, relay Ry1, etc. constitute a control means.

(Example 2) Example 2 is shown in FIG. In this embodiment, an inverter circuit is used for the fluorescent lamp lighting circuit 3, and the commercial power supply Vs is connected to the diode bridge DB2.
, the fluorescent lamp 1 is lit by an inverter circuit using a DC power source that has been full-wave rectified and smoothed by an electrolytic capacitor C3.
The output of 1 is used to control lighting and extinguishing of the light.

The light bulb lighting circuit 5 for blinking the light bulb 4 uses a transistor Q5 to control the light bulb 4 on and off using an astable multivibrator, unlike the light output control using the current and voltage division of the commercial power supply Vs in the first embodiment. The light output is varied by duty control. This astable multivibrator operates as follows. Initially, due to the slight difference between transistors Q3 and Q4, the collector current of one transistor will flow more than the other, and this will affect the base of the opposite side, and the base current of the transistor with larger current will decrease significantly. The smaller current does not decrease much, so the transistor through which more current flowed in a short period of time is turned off, and the transistor with less current is turned on.

After that, the transistor Q6 is connected from the capacitor C4, the resistor R2, and the resistor R2 of the variable resistor VR2.
The time constant determined by the resistance value up to and the capacitor C5
, the duty is determined by the resistance value from the resistor R3 of the variable resistor VR2 to the transistor Q6. Therefore, by changing the resistance value (center tap position) of variable resistor VR2, transistor Q4
The duty of the collector output of the light bulb 4 changes, this voltage operates the transistor Q5, and the duty of the voltage applied to the light bulb 4 changes. At this time, the effective value (voltage, current) at this duty becomes the power of the light bulb 4 and is applied to determine the light output.

When the on-duty of the transistor Q5 is large, the output of the light bulb 4 becomes large, and vice versa, it becomes small. This operation makes the light output of the light bulb 4 variable. As in the previous embodiment, the transistor Q6 is turned on and off by the signal OUT2 from the lighting mode control means 7, and when the transistor Q6 is on, the astable multivibrator operates and the light bulb 4 is lit.

Conversely, when transistor Q6 is turned off, resistors R2 and R2 are connected between transistors Q4 and Q3.
R3 and variable resistor VR2 are fixed resistors, R2
A resistance value of +R3+VR2 is inserted, and since the capacitors C4 and C5 are not discharged at this time, the potential becomes stable and oscillation stops. Using this function, the inverter circuit lights up the fluorescent lamp 1, and then the switch SW
Operate 1 to switch to light bulb mode. Due to this switching, the fluorescent lamp 1 is turned off and the light bulb 4 is turned on. At this time, the level of optical output can be arbitrarily controlled by the position of variable resistor VR2. FIG. 6 shows this state.

(Example 3) Example 3 is shown in FIG. In this embodiment, when the light bulb 4 is turned on, it lights up at a set brightness for a certain period of time T, and then reaches the set light output level. Note that a description of the astable multivibrator will be omitted. In addition, in order to form the above-mentioned fixed time T,
Timer IC8 is used. As an example of the timer IC 8, μPC5555 manufactured by NEC is used.

When the H level signal OUT2 is input from the lighting mode control means 7, the transistor Q6 is turned on and the astable multivibrator starts operating, and the transistor Q8 is turned on and the number 2 of the timer IC8 is turned on. Set the pin (reset terminal) to L level. This No. 2 pin causes the timer IC 8 to output an H level signal from the No. 3 pin for a time constant T determined by the resistor R7 and the capacitor C6.

This signal turns on the transistor Q7, which oscillates only for a time T at a duty determined by the time constants of the capacitor C4, resistor R2, capacitor C5, and resistor R3, and lights up the light bulb 4. If a constant is set at this time so that the output of the light bulb 4 is maximized, the output of the light bulb 4 is maximized for the time T. When the time comes, the No. 3 pin of timer IC8 becomes L level, and transistor Q7 is turned off. As a result, the astable multivibrator consists of capacitor C4, resistors R2 and R5, one resistance value of variable resistor VR2, and capacitor C5.
It oscillates according to the duty determined by the resistance value of the other of the resistor R3 and the variable resistor VR2.

This operation is shown in FIG. At this time, the operation of the fluorescent lamp 1 is shown as full lighting → dimmed lighting, then the bulb 4 has its maximum output for a certain period of time T, and then the variable resistor VR
The brightness will change to the brightness set in step 2. In this way, in this embodiment, the brightness is bright when the light is first turned on, and the brightness can be changed to an appropriate brightness during sleep, thereby providing a comfortable viewing environment. Also, during this change, by operating a timer to maximize the output for a certain period of time, a smooth transition from human activity to sleep can be achieved.

(Example 4) Example 4 is shown in FIG. When the signal OUT2 becomes H level, the transistor Q6 turns on, the astable multivibrator starts operating, and the light bulb 4 lights up. At this time, since capacitor C7 is not charged, transistor Q9 is on. Therefore, the astable multivibrator has capacitor C4
, resistor R2, and a time constant duty determined by capacitor C5 and resistor R3. for example,
This value is the maximum level of output duty.

The capacitor C7 is charged by the current flowing through the resistors R2 and R3 via the resistor R7, and the transistor Q7 gradually enters the active region from the on state. At this time, the collector-emitter voltage VCE of the transistor Q9 also increases. gradually rises. And resistance R5,
Voltage is also applied to variable resistor VR2 and current flows, and the oscillation duty gradually changes to the set level. Capacitor C7 is charged and transistor Q9 is turned off after exceeding the threshold value, and capacitor C4 and resistor R2,
The output is stabilized at a duty (arbitrarily set level) determined by the resistance value of one of R5, variable resistor VR2, and the resistance value of the other of capacitor C5, resistor R3, and variable resistor VR2. The operation in this case is shown in FIG.

(Embodiment 5) This embodiment is an example of a lighting device that operates according to the present invention using a remote control. As shown in Fig. 11, first, a remote control signal input is accepted, and when the lighting mode becomes the bulb lighting mode, the code of this input signal is sorted, and the output duty is controlled to be down or up. The time can also be set, and the brightness of the bulb can be increased or decreased by inputting a remote control signal.

(Embodiment 6) FIG. 12 shows Embodiment 6. When the light bulb mode is switched to the off mode, if it is route a, after a certain period of time has elapsed since the lights out signal, the lights are turned off using the lights out timer. . That is, as shown in FIG. 13, the light bulb is turned on for a certain period of time, and then the light output level of the light bulb is varied to 0 by the control means, and the light bulb is turned off.

[0030] Also, when switching from light bulb mode to off mode, if it is route b, the duty of the output signal is checked from the off signal, and if it is not 0%, the duty is sequentially decreased by n% until the light goes off. It is. In other words, in this case as well, the duty is gradually reduced to 0, as shown in FIG.
The light output level of the light bulb is varied down to 0 and the light is turned off.

[0031]Furthermore, if route c is selected, the operation of route b may be performed after a certain period of time has elapsed. Note that the initial value of this decrease is a decrease from the arbitrarily set level in the above embodiment. Further, although the switching from a fluorescent lamp to a light bulb and the switching from a light bulb to a dim mode are shown separately, a combination of each operation may be performed.

For example, in the case of operation from a fluorescent lamp to a light bulb,
There are cases in which the output is brought to the arbitrary setting level immediately, or the output is turned on to the maximum for a certain period of time and then brought to the arbitrary setting level, or the output is gradually decreased from the maximum output and brought to the arbitrary setting level. In addition, in the case of a light bulb to turn off operation, one that remains on for a certain period of time and then turns off.
Alternatively, the light may be turned off by gradually decreasing from the output setting level.

In the embodiments shown in FIGS. 11 and 12, the setting level of the light bulb can be set using the remote control, so the brightness of the entire fixture can be set while checking the brightness of the whole fixture without touching the variable resistor or other fixtures as in the previous embodiment. It is something that can be done.

[0034]

Effects of the Invention As described above, the present invention includes a light output level setting means that can arbitrarily set the light output level of lighting a light bulb;
Since the light bulb is equipped with a control means for varying the light output level of the light bulb to a set level when switching to lighting the light bulb, the light output level of the light bulb lighting can be arbitrarily set by the light output level setting means. Furthermore, when the light bulb is switched on using the control means, the light output level of the bulb can be varied up to a set level, and by adjusting the brightness to an appropriate level, a comfortable viewing environment can be obtained. It is.

[0035] Furthermore, in claim 2, the light output level of the light bulb is set to 0 upon receiving a switching signal from lighting the light bulb to turning off the light bulb.
By providing a control means that can vary up to 100 degrees, a delay function can be added by gradually dimming the light. In claim 3, when the light bulb is switched on, the light output level of the light bulb is made variable up to a set light output level, and upon receiving a switching signal for turning off the light bulb, the light output level is made variable up to 0. Since it is equipped with a control means, when the light bulb is switched on, the light output level of the light bulb can be varied up to the set light output level, and when the light bulb is switched off, the light output level is reduced to 0. By varying the light output and gradually dimming the light, a delay function can be added.

[Brief explanation of the drawing]

FIG. 1 is a block circuit diagram of a first embodiment of the present invention.

FIG. 2 is a block diagram of lighting mode control means.

FIG. 3 is an operational waveform diagram of FIG. 1;

FIG. 4 is a diagram showing the relationship between the resistance value of a variable resistor and a light bulb.

FIG. 5 is a circuit diagram of Example 2.

FIG. 6 is an operation explanatory diagram.

FIG. 7 is a circuit diagram of Example 3.

FIG. 8 is an explanatory diagram of the operation in FIG. 7;

FIG. 9 is a circuit diagram of Example 4.

FIG. 10 is an explanatory diagram of the operation in FIG. 9;

FIG. 11 is a flow diagram of Example 5.

FIG. 12 is a flow diagram of Example 6.

FIG. 13 is an explanatory diagram of the operation in FIG. 12;

FIG. 14 is an explanatory diagram of the operation in FIG. 12;

[Explanation of symbols]

1. Fluorescent light 3 Fluorescent lamp lighting circuit 4 Light bulb 5　Light bulb lighting circuit

Claims (3)

[Claims] Claim 1: A fluorescent lamp lighting circuit comprising a fluorescent lamp lighting circuit for lighting a fluorescent lamp and a light bulb lighting circuit for lighting a light bulb, and a lighting mode in which the fluorescent lamp is sequentially switched from on to off and from on to off in a light bulb. A lighting device comprising a light output level setting means that can arbitrarily set the light output level of the light bulb when the light bulb is turned on, and a control means that changes the light output level of the light bulb to the set level when the light bulb is switched on. Characteristic lighting device. 2. The lighting device according to claim 1, further comprising control means for varying the light output level of the light bulb down to 0 in response to a signal for switching the light bulb from on to off. [Claim 3] The light output level of the light bulb is made variable up to a set light output level when the light bulb is switched on,
2. The lighting device according to claim 1, further comprising control means for varying the light output level down to 0 in response to a switching signal for turning off the light bulb.