JP2001039214A - Auxiliary warning light - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a luminous part from being shaded by another light source even a light source of small luminance is emitted, by arranging a first luminous device on a position near to the luminous part than a second luminous device seeing from the luminous part, or at the same distance. SOLUTION: Green LED lamps 11G for constituting a first luminous device emit the luminous surfaces (luminous parts) of the lamps pale wholly, that is, at relatively small luminance and for this purpose, the number of the lamp 11G are small compared with that of red LED lamps 11R. The lamps 11R, constituting a second luminous device for informing the condition of brake-on to a vehicle in rear, are arranged relatively many to ensure the strong luminance of red luminescence in their luminous surfaces. In addition, the lamps 11R and 11G are arranged at the same distances seeing from the luminous surfaces consequently the lamps 11R are not shaded when the lamps 11G of weak luminance are emitted too.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an auxiliary warning light,
For example, it is suitably used for a high mount stop lamp attached to a rear spoiler or the like.

[0002]

2. Description of the Related Art Since a high-mount stop lamp, which is a kind of auxiliary warning light, is a functional product, its light-emitting portion is lit red only when a foot brake is operated. Therefore, when viewed from the occupants of the rear vehicle, a strong red color suddenly appears at the line of sight from a dark place. Depending on the mode of the light emission, an unnecessarily strong stimulus may be given to the occupant of the rear vehicle, and in some cases, the occupant may feel dazzling.

Therefore, Japanese Patent Application Laid-Open No. H10-24766 proposes a high-mount stop lamp having a configuration in which red-emitting LEDs and green-emitting LEDs are alternately arranged. According to this high mount stop lamp, the green LED emits light in conjunction with the small light at night. This allows the occupants of the rear vehicle to always visually recognize the position of the high-mount stop lamp. Therefore, even when the red LED emits light in conjunction with the brake lamp, the light emitting portion that has already emitted green light emits further red light, so that the occupant of the rear vehicle does not feel strong stimulation or glare. Absent.

[0004]

According to the high mount stop lamp described in the above-mentioned conventional publication, a discrete red LED having a high light emission luminance is located at a position close to the lens.
That is, it is located in front and covers the front of the green LED with low light emission luminance (see paragraph number 13). According to the light source arranged in this manner, the red LED is the green L
Since it covers the front of the ED, there is a possibility that a shadow may occur in the emission of the green LED when viewed from the lens side. Further, in order to prevent such a shadow from occurring, the positional relationship between the LEDs, the positional relationship between the LEDs and the lens, and the like are greatly limited, and the degree of freedom in designing the high-mount stop lamp itself is reduced. That is, it is an object of the present invention to provide an auxiliary warning lamp having two types of light sources, so that even when a light source having a low luminance is caused to emit light, a shadow is not formed on a light emitting unit by another light source.

[0005]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and has the following configuration. A first light-emitting device that emits a light-emitting portion in a first emission color in conjunction with a small light of a vehicle; and a second light-emitting device that emits red light in response to a brake lamp of the vehicle.
A light emitting device, wherein the first light emitting device is disposed closer to or at the same distance from the second light emitting device as viewed from the light emitting unit. An auxiliary warning light.

[0006] According to the auxiliary warning light configured as described above, the first light emitting device emits light in conjunction with the small light at night. Thereby, the occupant of the rear vehicle always visually recognizes the position of the auxiliary warning light. Therefore, even when the second light emitting device operates in conjunction with the brake lamp and the light emitting portion emits red light, the light emitting portion that has already emitted light further emits red light. There is no irritation or glare. In addition to the second light emitting device linked to the brake lamp, the first light emitting device that is always lit at night or in a dark place linked to the small light is provided, so that the light emission mode of the auxiliary warning light changes. It becomes rich, and the design becomes more interesting. Furthermore, since the first light emitting device that emits light in conjunction with the small light is disposed closer to or at the same distance from the light emitting unit than the second light emitting device that emits light in conjunction with the brake lamp, The second light emitting device does not cover the front of the first light emitting device. Therefore, there is no shadow when the first light emitting device emits light.

[0007] In the above, the emission color of the first light emitting device is not particularly limited. When an LED is used as the light source from the viewpoint of power saving or the like, light can be emitted in an arbitrary color. Although the light emission luminance of the first light emitting device can be set arbitrarily, considering the function of the second light emitting device as a stop lamp, the luminance of the first light emitting device should be smaller than the luminance of the second light emitting device. Is preferred.

[0008]

Embodiments of the present invention will be described below.
FIG. 1 is a perspective view of a rear rear spoiler 3 to which an auxiliary stop lamp 1 as an auxiliary warning light of the embodiment is attached, and FIG. 2 shows a state where the rear spoiler 3 is attached to a vehicle 5. FIG. 3 is a sectional view showing the structure of the auxiliary stop lamp 1. As shown in FIGS. 3 and 4, the auxiliary stop lamp 1 of the embodiment has a configuration in which a red LED lamp 11 </ b> R and a green LED lamp 11 </ b> G are built in a trough lens 13 having a U-shaped cross section. Reference numeral 15 in the figure is a substrate, and reference numeral 17
Is a housing board, and reference numeral 19 is an electrical connector. As shown in FIG. 4, a red LED lamp 1
1R and the green LED lamp 11G are regularly arranged. Green LED lamp 11 constituting first light emitting device
G makes the light emitting surface (light emitting portion) 131 of the lamp 1 emit light as a whole, that is, with relatively small luminance. Therefore, the number is smaller than that of the red LED lamp 11R. A relatively large number of red LED lamps 11R constituting the second light emitting device for notifying the rear vehicle of the brake-on state are arranged, and high luminance of red light emission on the light emitting surface 131 is secured. The red LED lamp 11R and the green LE
The D lamps 11G are arranged at the same distance from the light emitting surface 131. Therefore, the green LED lamp 1 with small brightness
Even when 1G is emitted, the red LED lamp 11R does not become a shadow.

FIG. 5 shows a control circuit 2 for the auxiliary stop lamp 1.
Indicates 0. The control circuit 20 uses a 12V battery for a vehicle as a power supply, and includes a small light switch 21 and a stop lamp switch 23. The small light switch 21 is linked to a lighting switch operated by the occupant. The stop lamp switch 23 is linked with the foot brake. When the small light switch 21 is turned on, current is supplied to the small light 25 and the green LED lamp 11G, and both are turned on. Since the arrangement amount of the green LED lamp 11G in the auxiliary stop lamp 1 is relatively small, the light emitting surface 131 of the lamp 1 emits light green light as a whole by turning on the green LED lamp 11G. When the stop lamp switch 21 is turned on, current is supplied to the stop lamp 27 and the red LED lamp 11R, and both are turned on. Red LED on auxiliary stop lamp 1
Since the lamps 11R are arranged in a relatively large number, the lighting of the red LED lamps 11R causes the light emitting surface 131 of the lamp 1 to emit strong red light.

The auxiliary stop lamp 1 of this embodiment thus configured emits a light green light in a dark place such as at night in conjunction with a small light (vehicle light). Thereby, the occupant of the rear vehicle can always visually recognize the presence of the auxiliary stop lamp 1. Therefore, even if the auxiliary stop lamp 1 emits red light intensely when the brake is depressed, the stimulus to the occupant of the rear vehicle is reduced compared to the conventional example in which the auxiliary stop lamp 1 suddenly emits light from a dark place, so that the occupant is surprised. And no dazzling feeling. Red L
ED lamp 11R and green LED lamp 11G have light emitting surface 1
31 are arranged at the same distance. Therefore, even when the green LED lamp 11G having a particularly small luminance emits light, the red LED lamp 11R does not become a shadow.

Next, the auxiliary stop lamp 3 of another embodiment will be described.
1 will be described. This auxiliary stop lamp 31 is also attached to the rear spoiler 3 and the like as in the above embodiment. FIG. 6 is a cross-sectional view of the auxiliary stop lamp 31, and FIG. The lamp 31 includes a first light emitting device 33, a second light emitting device 35, and a lens unit 37.
And a housing 39.

The first light emitting device 33 has a substrate 331 with a red L
The ED lamps 333 are evenly arranged. Substrate 3
31 is an electric wiring 3 for supplying power to the red LED lamp 333.
35 are printed. The substrate 331 is fixed to the convex portion 391 of the housing 39. The second light emitting device 351 includes a chip LED 35 on the surface of the printed circuit board 351.
3 is arranged. The printed circuit board 35 has a hole 352 at a portion facing the red LED lamp 333. Light from the red LED lamp 333 passes through the hole 352 and the light emitting surface (light emitting portion) 371 of the lens 37.
Irradiate evenly. That is, the light emitting surface 371 is illuminated with substantially the same luminance. A fluorescent paint 354 is applied to the surface of the printed board 351. The light emitted from the chip LED 353 is absorbed by the fluorescent paint 354 and emits green fluorescent light. Thus, when the second light emitting device 35 is on, the light emitting surface 371 of the lens 37 emits light green light. The printed board 351 is fitted in a groove of a pair of retainers 393 provided in the housing 39.

In this embodiment, the second light emitting device 35 having a small luminance is arranged closer to the light emitting surface 371 of the lens 37. Thereby, the light emission mode on the light emitting surface 371 by the light from the second light emitting device 35 becomes uniform. For example, if the red LED lamp 333 is located in front of the printed circuit board 351 (closer to the light emitting surface 371), when only the second light emitting device is turned on, the lamp 333 may become a shadow. Design becomes difficult.

In this embodiment, the fluorescent paint 354 is applied to the surface of the printed board 351 as a fluorescent plate. However, when the printed board 351 is made of a transparent material, the fluorescent paint may be applied to the back of the printed board 351. In this case, the chip LED is also arranged on the back surface. Alternatively, the base material of the printed circuit board may be made of a light-transmitting material, and a fluorescent paint may be dispersed therein to fluoresce the printed circuit board itself.
By using the fluorescent plate in this way, the light emitting section can emit light uniformly as a whole even if the light emission luminance is low. Alternatively, a fluorescent paint may be applied to the substrate 331 of the first light emitting device 33, and the chip LED may be arranged on the substrate 331. The wavelengths of the fluorescent paint and the chip LED can be arbitrarily selected. Thereby, the second light emitting device 35 can be colored in any color.

FIG. 10 shows a control circuit 40 for the auxiliary stop lamp 31 of this embodiment. As can be seen from FIG.
When the small light switch 21 is turned on, a current is supplied to the small light 25 and the chip LED 353, and both light up. Since the amount of light obtained by the fluorescence is small, the light emitting surface 371 of the auxiliary stop lamp 31 emits light green light as a whole when the chip LED 353 is turned on.
When the stop lamp switch 21 is turned on, current is supplied to the stop lamp 27 and the red LED lamp 333, and both are turned on. The light emitted from the red LED lamp 333 passes through the hole 352 of the printed circuit board 351 and reaches the light emitting surface 371 of the auxiliary stop lamp 31 to make it emit light strongly.

FIG. 11 shows a second light emitting device 45 of another embodiment.
Is shown. The second light emitting device 45 is a light transmitting substrate 451.
, And a chip LED 453 is arranged on a side surface thereof. The surface of the substrate 451 is roughened by satin finishing or the like,
On the other hand, a reflection layer 456 (aluminum or the like) is formed on the back surface. Chip LED 453 incident on substrate 451
The light propagates through the substrate 451 while being diffusely reflected, and a part of the light is emitted from the surface and reaches the light emitting surface 471 of the lens 47. By selecting the emission wavelength of the chip LED 453, the emission color of the second light emitting device 45 of this embodiment can be arbitrarily designed. Note that the reflection layer 456 can be omitted. The second light emitting device 45 is mounted on an auxiliary stop lamp in the same manner as the second light emitting device 35 of the embodiment shown in FIGS.

The present invention is not limited to the above-described embodiments and examples, but includes various modifications that can be made by those skilled in the art without departing from the scope of the claims.

[Brief description of the drawings]

FIG. 1 is a perspective view of a rear spoiler to which an auxiliary stop lamp according to an embodiment is applied.

FIG. 2 is a perspective view showing a state in which a rear spoiler is attached to a vehicle.

FIG. 3 is a sectional view showing a configuration of an auxiliary stop lamp according to the embodiment.

FIG. 4 is a front view showing an arrangement state of LED lamps on a substrate according to the embodiment.

FIG. 5 shows a control circuit of an auxiliary stop lamp according to the embodiment.

FIG. 6 is a cross-sectional view of an auxiliary stop lamp according to another embodiment.

FIG. 7 is a longitudinal sectional view of the same.

FIG. 8 is a perspective view of the second light emitting device.

FIG. 9 is a side view of the second light emitting device.

FIG. 10 shows a control circuit in the same manner.

FIG. 11 is a sectional view showing a second light emitting device according to another embodiment.

[Explanation of symbols]

 1, 31 Auxiliary stop lamp 11R, 333 Red LED lamp 11G Green LED lamp 33 First light emitting device 35 Second light emitting device 371 Light emitting surface

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Takayuki Kamiya 1 Ochiai Ogata, Kasuga-cho, Nishi-Kasugai-gun, Aichi F-term (reference) in Toyoda Gosei Co., Ltd. 3K039 AA01 CA06 CC09 LB07 LC05 LD06 LE01 LE16 LF27 MB04 3K080 AA01 BA07 BB01 CC06

Claims (4)

[Claims] A first light-emitting device that causes a light-emitting portion to emit light in a first emission color in conjunction with a small light of a vehicle; and a second light-emitting device that causes the light-emitting portion to emit red light in conjunction with a brake lamp of the vehicle. A light emitting device, wherein the first light emitting device is viewed from the light emitting unit, and the second light emitting device comprises:
An auxiliary warning light, which is arranged at a position closer to or at the same distance from the light emitting unit than the light emitting device. 2. The light emitting device according to claim 1, wherein the first light emitting device includes a light source including a light emitting diode, and a fluorescent plate that receives light from the light emitting diode light source and fluoresces with the first emission color.
The auxiliary warning light according to claim 1, wherein: 3. The light-emitting device according to claim 2, wherein the fluorescent plate is located closer to the light-emitting portion than a light source of the second light-emitting device, and a hole is formed for transmitting light from the light source of the second light-emitting device. The auxiliary warning light according to claim 2, wherein 4. The auxiliary warning light according to claim 1, wherein said second light emitting device emits light with a luminance higher than that of said first light emitting device.