JP2011110973A - Lighting device for vehicle - Google Patents

Abstract

An object of the present invention is to provide a technology that can achieve downsizing even a lighting device that uses both a blinker and a position lamp.
Based on the information that the point c has been reached in FIG. (A), the blinking control means is stopped and the continuous lighting control means is operated, and continuous lighting is performed as shown in FIG. (B). Let This continuous lighting is performed at 8V. The output of the lamp is determined by the product of current and voltage. If the current is constant, the blinking lighting voltage is 12V, and the continuous lighting voltage is 8V, the output during continuous lighting is 8/12 = 66.7%. Since the amount of heat generation is proportional to the output, the heat generation is suppressed to 66.7% during continuous lighting, and the temperature rise of the lamp can be suppressed.
[Effect] Miniaturization can be achieved even with a lighting device that uses both a blinker and a position lamp.
[Selection] Figure 7

Description

  The present invention relates to a lamp that serves as both a direction indicator lamp and a position light.

  A direction indicator using a light emitting diode as a light source instead of a conventional bulb is particularly suitable for providing a small lamp by adopting a light emitting diode smaller than the bulb. (For example, refer to Patent Document 1 (FIG. 4).)

  By the way, there are cases where a position lamp is provided in addition to the blinker in the vehicle lighting device, and the position lamp is a lamp that plays a role of continuously lighting and informing the outside of the vehicle. In particular, in small vehicles such as motorcycles, a lighting device that combines a winker and a position lamp has been put into practical use because of the demand for reducing the number of parts.

JP 2004-273191 A

  Even if the lighter is downsized using a light emitting diode, if it is a turn signal that turns on and off repeatedly, cooling can be expected when the light is turned off, and the temperature rise of the light can be suppressed. When both are used, the temperature of the lamp rises in the position lamp mode in which the lamp is continuously lit, and there is a concern that the light emitting diode may deteriorate at a high temperature.

  Thus, there is a demand for a technology that can ensure the life of a light emitting diode while achieving miniaturization even in a small lamp using a light emitting diode as a light source, by using both a winker and a position lamp.

According to the first aspect of the present invention, there is provided a light emitting diode that is supplied with power from a power source and emits light, and an operation state in which a left or right contact is closed and a left and right direction provided in a circuit connecting the light emitting diode and the power source. A switch means that is a direction indicating switch that can select a non-operating state in which the contact of the switch is open, and a controller that is provided in the circuit and controls the lighting of the light emitting diodes according to the operation of the switch means In vehicle lighting equipment equipped with
The control means includes a determination means for determining whether the switch means is in the operation state or the non-operation state.
When the determination means determines that the operation state, the flashing control means for alternately turning on the light emitting diode at a predetermined light intensity for a predetermined time and turning off the light emitting diode for a predetermined time;
When the determining means determines that the non-operating state, it is characterized by comprising continuous lighting control means for continuously lighting the light emitting diode at a light intensity smaller than the predetermined light intensity.
Vehicle lighting equipment.

  In the invention according to claim 2, when the control means changes from the operation state to the non-operation state, the control means maintains the blinking control until the turn-off by the blinking control means is completed for a certain period of time, and then the continuous lighting control means is activated. It is characterized by migrating.

  In the invention according to claim 3, when the control means changes from the operation state to the non-operation state, the control means maintains the blinking control until the lighting for a predetermined time by the blinking control means is completed, and then shifts to the operation of the continuous lighting control means. It is characterized by doing.

  In the invention according to claim 4, when the control means changes from the operating state to the non-operating state, the control means maintains the blinking control until the lighting for a predetermined time by the blinking control means is completed, and then gradually decreases and decreases the luminous intensity. When the luminous intensity reaches a luminous intensity smaller than the predetermined luminous intensity, the operation is shifted to the operation of the continuous lighting control means.

According to a fifth aspect of the present invention, there is provided a light emitting diode that is supplied with power from a power source and emits light, an operation state in which a left or right contact is closed and a left and right direction provided in a circuit connecting the light emitting diode and the power source. A switch means that is a direction indicating switch that can select a non-operating state in which the contact of the switch is open, and a controller that is provided in the circuit and controls the lighting of the light emitting diodes according to the operation of the switch means In vehicle lighting equipment equipped with
The control means includes a determination means for determining whether the switch means is in the operation state or the non-operation state.
When the determination means determines that the operation state, the blinking control means for alternately turning on the light emitting diode for a predetermined time and turning off the light emitting diode for a predetermined time;
When it is determined by the determining means that it is in a non-operating state, the light emitting diode is turned on for a minute time that is much shorter than the predetermined time, and the light emitting diode is slightly smaller than the predetermined time. It is characterized by comprising continuous lighting control means for performing pseudo continuous lighting by alternately performing time extinction.

  In the invention according to claim 6, when the control means changes from the operation state to the non-operation state, the control means maintains the blinking control until the turn-off by the blinking control means is completed for a certain period of time, and then shifts to the operation of the continuous lighting control means. It is characterized by doing.

  In the invention according to claim 7, when the control means changes from the operation state to the non-operation state, the control means maintains the blinking control until the lighting for a predetermined time by the blinking control means is completed, and then shifts to the operation of the continuous lighting control means. It is characterized by doing.

  In the invention according to claim 8, when the control means changes from the operating state to the non-operating state, the control means maintains the blinking control until the lighting for a predetermined time is completed by the blinking control means, and then gradually turns on in the blinking control. The time is gradually shortened, and when the shortened lighting time reaches a minute time, the operation is shifted to the operation of the continuous lighting control means.

  The invention according to claim 9 is characterized in that the minute light extinction time for turning off the minute time is set longer than the minute lighting time for turning on for the minute time.

  In the invention which concerns on Claim 1, when a switch means is a non-operation state, it makes it light continuously with a small luminous intensity by a continuous lighting control means. At this time, it is possible to suppress the temperature rise of the lighting device by reducing the luminous intensity continuously, and to extend the life of the light emitting diode while reducing the size of the lighting device by using the light emitting diode. And position lamp functions can be achieved with a single light fixture.

  In the invention according to claim 2, when the operation state is changed to the non-operation state, the blinking control is maintained until the turn-off by the blinking control unit is completed for a predetermined time, and then the operation of the continuous lighting control unit is performed. It is possible to shift to continuous lighting at the timing when the blinking operation is turned off, and switching can be performed before and after the transition without a sense of incongruity between light and dark.

  In the invention according to claim 3, when the operation state is changed to the non-operation state, the blinking control is maintained until lighting for a predetermined time by the blinking control unit is completed, and then the operation of the continuous lighting control unit is performed. It is possible to immediately shift to continuous lighting without waiting for the blinking to be turned off, and the visibility can be improved by quick transition.

  In the invention according to claim 4, when the operation state is changed from the operation state to the non-operation state, the blinking control is maintained until lighting for a predetermined time by the blinking control means is completed. When the light intensity is smaller than the predetermined light intensity, the operation of the continuous lighting control means is started. Since transition to continuous lighting is performed by gradually lowering the luminous intensity gradually from normal blinking, switching between before and after transition can be performed without a sense of incongruity between brightness and darkness, and visibility can be improved.

  In the invention according to claim 5, when the switch means is in the non-operating state, the continuous lighting control means turns on the light emitting diode for a minute time and turns off the light for a short time alternately, thereby simulating continuous lighting. Let Because it cools during a very short period of time, the temperature rise of the lamp can be suppressed, and while the lamp is downsized using the light emitting diode, the life of the light emitting diode can be extended, and the blinker and position Both functions of the lamp can be achieved with a single lamp.

  In the invention according to claim 6, when the operation state is changed to the non-operation state, the blinking control is maintained until the turn-off by the blinking control unit is completed for a certain time, and then the operation of the continuous lighting control unit is performed. It is possible to shift to continuous lighting at the timing when the blinking operation is turned off, and switching can be performed before and after the transition without a sense of incongruity between light and dark.

  In the invention according to claim 7, when the operation state is changed to the non-operation state, the blinking control is maintained until lighting for a predetermined time by the blinking control unit is completed, and then the operation of the continuous lighting control unit is performed. It is possible to immediately shift to continuous lighting without waiting for the blinking to be turned off, and the visibility can be improved by quick transition.

  In the invention according to claim 8, when the operation state is changed to the non-operation state, the blinking control is maintained until the lighting for a predetermined time by the blinking control means is completed, and then the lighting time in the blinking control is gradually shortened. When the shortened lighting time reaches a very short time, the operation of the continuous lighting control means is started. Since transition to continuous lighting is performed by gradually lowering the brightness gradually from normal blinking, switching can be performed without a sense of incongruity between brightness before and after the transition, and visibility can be improved.

In the invention according to claim 9, in the continuous lighting control, the minute light extinction time for turning off the minute time is set longer than the minute lighting time for turning on the minute time.
Since the light extinction for a minute time related to cooling is lengthened, the temperature rise of the lamp can be more effectively suppressed, the life of the light emitting diode can be further extended, and the lamp can be further downsized.

It is a left view of the vehicle provided with the lighting equipment which concerns on this invention. It is a front view of the vehicle provided with the lighting equipment which concerns on this invention. It is a front view of the lighting equipment which concerns on this invention. FIG. 4 is a cross-sectional view taken along line 4-4 of FIG. It is a circuit diagram which concerns on the lighting device which concerns on this invention. It is a flowchart explaining the effect | action of a control means. It is a figure explaining the switching pattern from blink control to continuous lighting control. It is a figure explaining the switching pattern from blink control to continuous lighting control. It is a figure explaining the switching pattern from blink control to continuous lighting control. It is a figure explaining a duty ratio. It is a figure explaining the switching pattern from blink control to continuous lighting control. It is a figure explaining the switching pattern from blink control to continuous lighting control. It is a figure explaining the switching pattern from blink control to continuous lighting control. It is a figure explaining the switching pattern from blink control to continuous lighting control.

  Embodiments of the present invention will be described below with reference to the accompanying drawings. The drawings are viewed in the direction of the reference numerals. The front and rear and left and right are based on the driver.

First, the example of the vehicle carrying the vehicle lighting device of this invention is demonstrated.
As shown in FIG. 1, the vehicle 10 is a motorcycle.
The vehicle 10 has a front fork 12 attached to a head pipe 11 so as to be steerable, a steering handle 14 is attached to a top bridge 13 of the front fork 12, and a bracket is interposed in front of the top bridge 13 and the bottom bridge 15. A headlight 16 and a lighting device 50L called a front blinker and a meter 18 are attached, a front fender 19 and a front wheel 21 are attached to a lower portion of the front fork 12, and a main frame 22 as a vehicle body frame extends backward from the head pipe 11. In addition, the down tube 23 extends obliquely from the bottom to the rear, and an engine 24 is interposed between the main frame 22 and the down tube 23. The engine 24 is connected to the front mount portion 25, the rear upper mount portion 26, and the rear lower mount portion 27. With three points The body frame is held, the seat rail 28 is extended rearward from the main frame 22, the fuel tank 29 and the tandem seat 31 are placed in this order, and the subframe 32 is extended from the down tube 23 to the seat rail 28. A rear swing arm 34 is extended from the lower rear portion via a pivot 33, and a rear wheel 35 is rotatably attached to the rear end of the rear swing arm 34. The rear portion of the rear swing arm 35 and the body frame (the subframe 32 and the seat rail 28). The rear cushion 36 is handed over to the corner.

  A radiator 37 is disposed in front of the vehicle in the down tube 23, an air cleaner 38, a throttle valve 39, and a cylinder head 41 are disposed in order from the rear to the front of the vehicle below the fuel tank 29. The exhaust pipe 42 extends from the cylinder head 41 to the rear of the vehicle. A silencer 44 is provided at the rear end of the exhaust pipe 42.

A main stand 43 is disposed below the pivot 33, a rear fender 45 is disposed above the rear wheel 35, and a license light 45a and a rear turn signal 46 are attached to the rear fender 45.
Further, a rear cowl 47 is provided on the side of the tandem seat 31, and a club rail 48 and a taillight 49 are provided on the rear cowl 47.

  As shown in FIG. 2, the lamps that play the role of the front winker are arranged at a certain distance in the vehicle width direction, and the left lamp 50L (L is a subscript indicating the left) and the right lamp 50R ( R is a subscript indicating the right). Since they are apart from each other by a certain distance, they can also be used as vehicle width lights, that is, position lights, by continuously lighting them.

  As shown in FIG. 3, the lighting devices 50L and 50R have a horizontally long egg-shaped outer shape. As shown in FIG. 4, which is a cross-sectional view taken along line 4-4 of FIG. A substrate 53 housed in a housing 51 and fixed by screws 52, a plurality of light emitting diodes 54 mounted on the substrate 53, a harness 55 drawn from the substrate 53, and a tip of the harness 55 are provided. The waterproof coupler 56 includes an insert bolt 57 that fixes the resin housing 51 to the vehicle body, a rubber member 58 that elastically connects the insert bolt 57 to the resin housing 51, and a lens 59 that covers the light emitting diode 54.

In a conventional lighting device that uses a bulb as a light source, it is necessary to replace the bulb when the ball is blown out. For this reason, the lens is detachably attached to the resin housing. Conventional lamps tend to be large due to the need for seal packing and set screws.
In this respect, the light-emitting diode 54 of the present invention has a long life and does not require replacement. Therefore, the lens 59 was welded around the resin housing 51. As a result, it is possible to reduce the size of the conventional lighting device.

Next, a power feeding structure to the light emitting diode 54 will be described.
As shown in FIG. 5, a sub circuit 64 is branched from a main circuit 63 including a power supply 61 and a main switch 62, and the sub circuit 64 is provided with switch means 65 that can be switched to the left, neutral, and right directions. Then, power is supplied to the left light-emitting diode 55L and / or the right light-emitting diode 55R via the control means 66.

  The switch means 65 has an operation state in which the left contact point L or the right contact point R is closed (broken line in FIG. 5) and a non-operation state in which the left contact point and the right contact point are opened (solid line in FIG. 5). It is a direction indicating switch that can be selected.

  The control unit 66 includes a determination unit 67 that determines whether the switch unit 65 is in an operation state or a non-operation state. Since the branch circuit 71 branched from the sub circuit 64 is connected to the determination unit 67, the control unit 66 is activated in advance when the main switch 62 is turned on (closed).

  The controller 66 alternately turns on the light-emitting diode 55L or 55R at a predetermined light intensity for a predetermined time and turns off the light-emitting diode 55L or 55R for a predetermined time when the operating state is determined by the determining unit 67. It includes left flashing control means 68L and right flashing control means 68R to be performed.

  Furthermore, the control means 66 simulates the light emitting diode 55L and the light emitting diode 55R by continuously lighting them with a light intensity smaller than a predetermined light intensity or blinking them for a minute time when it is determined that the non-operating state is detected by the determining means 67. In addition, continuous lighting control means 69 for continuously lighting is provided.

  The brightness of light is expressed in various units such as luminous flux (lumens), luminous intensity (candela), and illuminance (lux). Japanese Industrial Standard JIS-D 5500 “Automobile Lamps” defines the brightness of the lamp in terms of light intensity. Therefore, in the present invention, the brightness of the lighting device is expressed in terms of luminous intensity (candela). The luminous intensity (candela; cd) is a unit representing the intensity of light.

Next, the operation of the control unit 66 will be described with reference to a flowchart.
As shown in FIG. 6, at ST (step number; the same applies hereinafter) 01, the control unit starts operating when the main switch is turned on.
First, the state of the switch means is determined by the determination means (ST02). When the discrimination means detects that the contact in the left direction is closed, it is determined that the operation state is in the left direction. Then, the left flashing control means starts operating, and the left lamp is flashed (ST03).

  Further, the state of the switch means is determined by the determining means (ST02), and when the determining means detects that the right contact is closed, it is determined as the right operation state. Then, the right flashing control means starts operating, and the right lamp is flashed (ST04).

  The control means obtains the opening / closing information of the contact in the left direction and the opening / closing information of the contact in the right direction from the discriminating means in time series, and when the contact is released, the left contact or the right contact is released. It has a function of identifying whether the contact is opened. In addition, it has a function of certifying from the moment when the left contact (or right contact) is released to the elapse of a certain time (for example, 10 ms) as immediately after the contact is opened.

  Accordingly, the state of the switch means is determined by the determination means (ST02), and when the state is the non-operating state (the state that is neither the left direction operation state nor the right operation state), the determination means is the result of the determination by the control means in the immediately preceding routine. Then, it is checked whether or not it is immediately after switching from the left operation state (ST05).

If it is determined in ST05 that it is immediately after switching from the left operation state, in ST06, a transitional measure is taken for the left lamp. This progress process will be described later.
If it is determined in ST05 that it is not immediately after switching from the left direction operation state, it is checked in ST07 whether or not it is immediately after switching from the right direction operation state.
If it is determined in ST07 that it is immediately after switching from the right operation state, in ST08, a transitional measure is taken for the right lamp. This progress process will be described later.

  When it is determined in ST07 that it is not immediately after switching from the right direction operation state, that is, not immediately after switching from the left direction operation state and not immediately after switching from the right direction operation state In step ST09, continuous lighting control is executed.

  Even after taking the transitional treatment in ST06 or ST08, the left and right lamps are continuously lit in ST09. However, the continuous lighting control means performs continuous lighting at a light intensity smaller than the light intensity in the flashing control, or performs pseudo continuous lighting by minute time flashing.

The progress measures taken in ST06 or ST08 will be described in detail.
Since there are a plurality of patterns of the transitional treatment, a description will be given by changing the drawing for each pattern.
First, as shown in FIG. 7A, blinking control is performed. The blinking control refers to alternately repeating, for example, supplying twelve volts (volts) to turn on the light for a predetermined time t1 at a predetermined light intensity and turning off the power supply for a predetermined time t2. The predetermined time t1 is, for example, 0.5 seconds, and the predetermined time t2 is, for example, 0.8 seconds.

In the figure, point a is a point during lighting, point b is a point during the next turn-off, and point c is a turn-off completion point.
The timing at which the operation state is canceled during the blinking control is considered to be either on or off.

When the operation state is canceled at point a, the control means continues the blinking control up to point c by performing the remaining lighting and the next extinguishing.
When the operation state is canceled at point b, the control means continues the blinking control up to point c by performing the remaining extinction.
That is, the progress treatment after the cancellation is performed between the points a and c or between the points b and c.

Based on the information that the point c has been reached, the control unit stops the blinking control unit, operates the continuous lighting control unit, and performs continuous lighting as shown in FIG. This continuous lighting is performed at 8V. The output of the lamp is determined by the product of current and voltage. For example, if the current is constant and the voltage at the time of flashing is 12V and the voltage at the time of continuous lighting is 8V, the output at the time of continuous lighting is 8/12 = 66.7%.
Since the amount of heat generation is proportional to the output, the heat generation is suppressed to 66.7% during continuous lighting, and the temperature rise of the lamp can be suppressed.

  At point c, the flashing control is switched to the continuous lighting control. Since the point c is a turn-off completion point, continuous lighting control is executed following normal blinking control. There is no sense of incongruity in switching, and naturalness can be maintained.

Although another pattern is demonstrated in FIG. 8, the content already demonstrated in FIG. 7 or a common content is omitted (same also after FIG. 9).
In FIG. 8A, a point d is a point that is being turned off, a point e is a point that is next turned on, and a point f is a lighting completion point.

When the operation state is canceled at the point d, the control means continues the blinking control up to the point f by performing the remaining lighting and the next lighting.
When the operation state is canceled at point e, the control means continues the blinking control up to point f by performing the remaining lighting.
In other words, the period between the point d and the point f or the point between the points e and f is a progress measure after the cancellation.

  Based on the information that the point f has been reached, the control means stops the blinking control means, activates the continuous lighting control means, and performs continuous lighting as shown in FIG. During continuous lighting, the heat generation is suppressed to 66.7%, and the temperature rise of the lighting device is suppressed.

  Switching from blinking control to continuous lighting control at point f. Since the point f is the lighting completion point, the continuous lighting control is quickly executed following the normal blinking control. Since it switches quickly, lighting is prioritized and visibility is enhanced.

The following pattern will be described with reference to FIG.
In FIG. 9 (a), point g is a point being turned off, point h is a point during the next lighting, and point j is a point when a predetermined time t1 has elapsed after lighting.
In this pattern, the control means steps down the voltage from 12V to 8V continuously (linearly) or stepwise (steps) from this point j over time t3. The point at which 8V is reached is k.

When the operation state is canceled at the point g, the control means performs the remaining turn-off and the next turn-on, and then continues the blinking control up to the point k while decreasing the luminous intensity.
When the operation state is canceled at the point h, the control means continues the blinking control up to the point k while lowering the remaining lighting and light intensity.
That is, the progress treatment after the cancellation is performed between the point g and the point k or between the point h and the point k.

  Based on the information that the k point has been reached, the control means stops the blinking control means, operates the continuous lighting control means, and performs continuous lighting as shown in FIG. 9B. During continuous lighting, the heat generation is suppressed to 66.7%, and the temperature rise of the lighting device is suppressed.

  At point k, the flashing control is switched to the continuous lighting control. At this time, since the light intensity is lowered before switching, there is no sense of incongruity. In addition, the continuous lighting control is quickly executed following the normal blinking control. Since it switches quickly, lighting is prioritized and visibility is enhanced.

The continuous lighting shown in FIGS. 7 (b), 8 (b), and 9 (b) reduced the output and reduced the luminous intensity to suppress heat generation and enable continuous lighting.
Another method for suppressing heat generation is duty control.

  FIG. 10 is a diagram for explaining the duty ratio. When lighting and extinguishing are repeated alternately, the sum of the lighting time and the extinguishing time is one cycle T, the lighting time is τ, and the duty ratio (%) is (τ / T) × 100.

If the blinking control is performed under conditions of 1 Hz (Hertz) and a duty ratio (%) of 50%, one cycle T is 1 second and the lighting time τ is 0.5 seconds.
On the other hand, the duty control is performed at 100 Hz, for example. In this case, the lighting time τ at a duty ratio (%) of 50% is (0.5 seconds / 100) = 0.005 seconds.

When blinking control is performed at a minute time of 0.005 seconds, it appears to be continuously lit due to an afterimage phenomenon. However, since the duty control includes a minute time extinction, it is expressed as pseudo continuous lighting.
An example in which the previous continuous lighting is changed to pseudo continuous lighting will be described with reference to FIG.

FIG. 11 shows an example in which the continuous lighting in FIG. 7 is changed to pseudo continuous lighting by duty control. The difference from FIG. 7 is that in FIG. 11B, the light is turned on only for the minute time Δt4 and turned off for the minute time Δt5.
If the duty control is performed under the conditions of 100 Hz and a duty ratio of 50%, the minute time Δt4 is 0.005 seconds and the minute time Δt5 is 0.005 seconds. Due to the afterimage effect, the extinction is not visually noticeable, and as a result, it feels like it is continuously lit. Therefore, pseudo continuous lighting can be obtained.
Since the minute time Δt5 is extinguished, the temperature rise can be suppressed. And the same effect as FIG. 7 is acquired.

FIG. 12 shows an example in which the continuous lighting in FIG. 8 is changed to pseudo continuous lighting by duty control. The difference from FIG. 8 is that in FIG. 12B, the light is turned on only for the minute time Δt4 and turned off for the minute time Δt5. If the duty control is performed under the conditions of 100 Hz and a duty ratio of 50%, the minute time Δt4 is 0.005 seconds and the minute time Δt5 is 0.005 seconds. Due to the afterimage effect, the extinction is not visually noticeable, and as a result, it feels like it is continuously lit. Therefore, pseudo continuous lighting can be obtained.
Since the minute time Δt5 is extinguished, the temperature rise can be suppressed. And the same effect as FIG. 8 is acquired.

FIG. 13 shows an example in which the continuous lighting in FIG. 9 is changed to pseudo continuous lighting by duty control.
In FIG. 13B, the lighting time t6 is set shorter than the lighting time t1. The next lighting time t8 is set shorter than the lighting time t6. The next lighting time t10 is set shorter than the lighting time t8. In (b), the lighting time is gradually decreased until the lighting time approximates to the minute lighting time Δt4 shown in (c). Thus, the same effect as in FIG. 9 can be obtained. Note that the turn-off times t7, t9, and t11 may be gradually decreased in the same manner.

In FIGS. 11 to 13 described above, since the pseudo continuous lighting has a duty ratio of 50%, the minute lighting time Δt4 and the minute light extinction time Δt5 are both 0.005 seconds.
However, the minute lighting time Δt4 may be different from the minute light extinction time Δt5 by setting the duty ratio to 30%.
An example of this will be described with reference to the next figure.

FIG. 14 is a modification diagram of FIG. 11 in which the duty ratio is changed to 30%. Then, the minute lighting time ΔT6 shown in FIG. 14B is 0.003 seconds, and the minute light extinction time ΔT7 is 0.007 seconds. That is, the minute light extinction time ΔT7 is made longer than the minute lighting time ΔT6.
Since an afterimage effect can be expected, a pseudo continuous lighting state can be maintained even if the minute lighting time ΔT6 is short. In addition, since the minute light extinction time ΔT7 is long, the temperature rise is further suppressed, and the lamp can be further downsized.

  Thus, for example, in addition to changing the frequency so that blinking control is performed at 1 Hz and pseudo continuous lighting is performed at 100 Hz, the duty ratio in pseudo continuous lighting should be less than 50%. Thus, a small light fixture can be obtained.

  The lighting device of the present invention is suitable for a motorcycle (including a scooter) in which downsizing of the lighting device is strongly desired, but may be applied to a tricycle, a four-wheeled vehicle, a bicycle, and the like.

  The lighting device of the present invention is suitable for a motorcycle.

  DESCRIPTION OF SYMBOLS 10 ... Vehicle, 50L, 50R ... Vehicle lighting device, 54 ... Light emitting diode, 61 ... Power supply, 64 ... Circuit (sub circuit), 65 ... Switch means, 66 ... Control means, 67 ... Discrimination means, 68 ... Flashing control means 69 ... Continuous lighting control means.

Claims (9)

A light-emitting diode that is supplied with power from a power source and emits light, and is provided in a circuit that connects the light-emitting diode and the power source. The left-hand or right-hand contact is closed and the left-hand and right-hand contacts are opened. In a vehicle lighting device comprising: a switch unit that is a direction indicating switch capable of selecting an operation state; and a control unit that is provided in the circuit and controls lighting of the light-emitting diode according to an operation of the switch unit. ,
The control means includes a determination means for determining whether the switch means is in the operation state or the non-operation state.
When the determination means determines that the operation state, the flashing control means for alternately turning on the light emitting diode at a predetermined light intensity for a predetermined time and turning off the light emitting diode for a predetermined time;
A vehicle lighting device comprising: a continuous lighting control means for continuously lighting the light emitting diode at a light intensity smaller than the predetermined light intensity when the determining means determines that it is in a non-operating state.   When the control means changes from the operation state to the non-operation state, the control means maintains the blinking control until the turn-off by the blinking control means is completed for a certain period of time, and then shifts to the operation of the continuous lighting control means. The vehicle lighting device according to claim 1, wherein the lighting device is a vehicle lighting device.   When the control means changes from the operation state to the non-operation state, the control means maintains the blinking control until the lighting for a predetermined time is completed by the blinking control means, and then shifts to the operation of the continuous lighting control means. The vehicle lighting device according to claim 1, wherein the lighting device is a vehicle lighting device.   When the control means changes from the operation state to the non-operation state, the control means maintains the blinking control until the lighting for a predetermined time by the blinking control means is completed, and then gradually reduces the luminous intensity, and the reduced luminous intensity 2. The vehicular lamp according to claim 1, wherein when the light intensity reaches a value smaller than the predetermined light intensity, the operation of the continuous lighting control means is started. A light-emitting diode that is supplied with power from a power source and emits light, and is provided in a circuit that connects the light-emitting diode and the power source. The left-hand or right-hand contact is closed and the left-hand and right-hand contacts are opened. In a vehicle lighting device comprising: a switch unit that is a direction indicating switch capable of selecting an operation state; and a control unit that is provided in the circuit and controls lighting of the light-emitting diode according to an operation of the switch unit. ,
The control means includes a determination means for determining whether the switch means is in the operation state or the non-operation state.
When the determination means determines that the operation state, the blinking control means for alternately turning on the light emitting diode for a predetermined time and turning off the light emitting diode for a predetermined time;
When it is determined by the determining means that it is in a non-operating state, the light emitting diode is turned on for a minute time that is much shorter than the predetermined time, and the light emitting diode is slightly smaller than the predetermined time. A vehicular lamp characterized by comprising continuous lighting control means for performing pseudo continuous lighting by alternately performing time extinction.   When the control means changes from the operation state to the non-operation state, the control means maintains the blinking control until the turn-off by the blinking control means is completed for a certain period of time, and then shifts to the operation of the continuous lighting control means. The vehicle lighting device according to claim 5, wherein   When the control means changes from the operation state to the non-operation state, the control means maintains the blinking control until the lighting for a predetermined time is completed by the blinking control means, and then shifts to the operation of the continuous lighting control means. The vehicle lighting device according to claim 5, wherein   When the control unit changes from the operation state to the non-operation state, the control unit maintains the flashing control until the lighting for the predetermined time by the flashing control unit is completed, and then gradually increases the lighting time in the flashing control. 6. The vehicle lighting device according to claim 5, wherein when the shortened and shortened lighting time reaches the minute time, the operation of the continuous lighting control means is started.   The vehicle lighting device according to any one of claims 5 to 8, wherein a minute light extinction time for turning off the minute time is set longer than a minute lighting time for turning on the minute time.

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