JP2787799B2 - Indicator light - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an indicator light,
The present invention relates to an indicator light formed by fitting a light-transmitting cap portion and a base portion to form a case, and disposing a predetermined light source in the case.

[0002]

2. Description of the Related Art FIG. 10 shows an example of this type of indicator lamp. This conventional indicator light 80 has a transparent or translucent cap portion 82 and a base portion 8 having a male screw threaded.
4 is fitted to form a case 86 in which light emitting elements such as incandescent lamps and light emitting diode elements are arranged as light sources. The indicating lamp 80 is
Is inserted into a screw hole formed in a mounting surface of an instrument panel or the like, and a female screw formed in the screw hole and a male screw of the base portion 84 are screwed and arranged and fixed. In addition, a plurality of annular steps are formed concentrically on the inner surface of the top of the cap portion 82 and constitute a spin-shaped lens 88. Therefore, light emitted from the light source is directed forward (with respect to the mounting surface). In the vertical direction).

[0003]

As described above, the indicator lamp 80 secures a sufficient amount of light forward by forming the condensing spin lens 88 on the top of the cap portion 82. Therefore, it is suitable for use mainly for observing from the front, such as an alarm lamp indicating the location of a fire alarm. However, it is not possible to emit a sufficient amount of light in the side direction (horizontal direction with respect to the mounting surface).
It was not suitable for display intended mainly for viewing from the side.

The present invention has been made in view of the above-mentioned conventional problems, and has as its object to provide a display lamp which can be used for display purposes in the front direction and can also be used for display purposes in the lateral direction. It is to realize.

[0005]

In order to achieve the above-mentioned object, an indicator lamp according to the present invention comprises a case formed by fitting a light-transmitting cap and a base to each other. In the indicator lamp having a light source unit disposed therein, a plurality of annular steps are concentrically engraved on the inner surface of the top of the cap portion, and the light from the light source is condensed in a direction perpendicular to the mounting surface. Along with forming the lens, a belt-like lens having a substantially semicircular cross section that condenses light from the light source in the horizontal direction with respect to the mounting surface is formed on the inner peripheral surface of the cap portion,
The light source unit is configured by integrating side-view type light-emitting diode elements whose optical axes are adjusted to be substantially horizontal with respect to the mounting surface, and includes a first side-view type light-emitting diode element. And a second light emitting diode group including a plurality of side-view type light emitting diode elements is arranged on the outer periphery of the first light emitting diode group, and the first light emitting diode The position of the convex lens of the side-view type light emitting diode element belonging to the group is set higher than the position of the convex lens of the side-view type light emitting diode element belonging to the second light emitting diode group.

[0006]

The light from the light source is condensed in the direction perpendicular to the mounting surface by the spin lens, so that visibility from the front can be ensured. In addition, since the light from the light source is also condensed in the horizontal direction with respect to the mounting surface by the belt-shaped lens, visibility from the side can be ensured.

Further, since the light source unit is formed by integrating side-view type light emitting diode elements whose optical axis is adjusted to be substantially horizontal with respect to the mounting surface, most of the generated light is a strip lens. And is condensed there and emitted in the side direction from the side peripheral portion of the indicator lamp, so that an effective display in the side direction is realized.

Further, a first light emitting diode group comprising a plurality of side-view type light emitting diode elements is arranged on a substrate, and a first light emitting diode group comprising a plurality of side-view type light emitting diode elements is provided on the outer periphery of the first light emitting diode group. Two light emitting diode groups are arranged, and the position of the convex lens of the side view type light emitting diode element belonging to the first light emitting diode group is set to the position of the convex lens of the side view type light emitting diode element belonging to the second light emitting diode group. Since the position is set higher than the position, light from the side-viewing type light emitting diode element belonging to the first light-emitting diode group is blocked by the side-viewing type light emitting diode element belonging to the second light-emitting diode group disposed outside. Never be.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the illustrated embodiments. FIG. 1 is a side view showing the entire indicator light 10 according to the present invention, and FIG. 2 is an exploded side view. This indicator light 10
Has a basic configuration in which a light source unit 18 having a plurality of light emitting diode elements is disposed in a case 16 formed by fitting a cap portion 12 and a base portion 14.

The cap portion 12 is made of a translucent plastic material. A plurality of annular step portions 22 are formed concentrically on the inner surface near the top portion 20 as shown in the sectional view of FIG. It is engraved and forms a condensing spin-shaped lens 24 as a whole. On the inner surface of the side peripheral portion 26 of the cap portion 12, a number of band-shaped lenses 28 extending downward from the outer periphery of the spin-shaped lens 24 are formed. The band-shaped lens 28 is
4, each of which has a semicircular cross section, a belt-shaped convex lens is continuously formed on the inner surface of the side peripheral portion 26 of the cap portion 12. As shown in FIG.

The light source unit 18 is formed by integrating a plurality of hat type light emitting diode elements 34 on a circular insulating substrate 32. That is, the lead terminals 36 of the respective light emitting diode elements 34 are inserted into through holes (not shown) formed on the insulating substrate 32, are soldered to a predetermined print pattern on the back surface of the insulating substrate 32, and The pair of lead wires 40 is taken out via the cable. Although not shown, one of the lead wires 40 is soldered to the back surface of the thread portion 42 and the other is soldered to a terminal portion 44 insulated from the thread portion 42 in the base 14. You.

The light source unit 18 is disposed on a flange (not shown) provided in the engaging portion 46 of the base 14.
Fixed. Then, the notch portion 48 formed at the lower end of the cap portion 12 and the engaging protrusion 50 formed on the engaging portion 46 are fitted together and bonded to complete the indicator light 10.

The indicator light 10 is formed by inserting the base 14 into a screw hole formed on a mounting surface of an instrument panel or the like, and screwing a female screw in the screw hole with a thread 42 of the base 14. The cap portion 12 is attached with the cap portion 12 protruding from the attachment surface. When power is supplied through the terminal portion 44 and the thread portion 42, all the light emitting diode elements 34 of the light source unit 18 emit light.

As shown in FIG. 5, each light emitting diode element 34 has a light emitting diode chip 54 disposed in a conductive reflecting mirror 52 connected to the tip of one lead terminal 36a. It is connected to the tip of the other lead terminal 36b via a bonding wire 56. Further, a resin lens 58 is formed above the light emitting diode chip 54. Therefore, the light emitted from the light emitting diode chip 54 is reflected by the reflecting surface 60 of the reflecting mirror 52 toward the resin lens 58, and most of the light emitted from the resin lens 58 After being condensed by 24, it is irradiated forward. Further, a part of the light emitted from the resin lens 58 proceeds in the side direction, and is condensed by the band-shaped lens 28 formed on the side peripheral portion 26 of the cap portion 12,
The light is radiated to the side circumference of the cap portion 12. Therefore, the indicator light 10 can emit strong light forward and emit light radially from the side peripheral portion 26 of the cap portion 12, so that the indicator light 10 can be sufficiently viewed not only from the front but also from the side. In addition, since the light emitted from the side peripheral portion 26 of the cap portion 12 can be observed as a radial light beam from the front,
The aesthetic effect of the display also increases.

As a light emitting diode element incorporated in the light source unit 18, a side view type light emitting diode element 62 shown in FIG. 6 may be used instead of the hat type light emitting diode element 34 shown in FIG. This is formed by projecting a convex lens 66 on one surface of a main body substrate 64 containing a light emitting diode chip (not shown) in a side surface direction (a direction orthogonal to the lead terminals 68).

As shown in FIG. 7, a large number of the side-view type light emitting diode elements 62 are integrated on the surface of a circular insulating substrate 32 to form the light source unit 18. In the figure, four light-emitting diode elements 62 are arranged in a square shape at substantially the center of the insulating substrate 32 (hereinafter, referred to as “first light-emitting diode group A”), and eight light-emitting diode elements 62 are surrounded by the light-emitting diode elements 62. 62 are annularly arranged (hereinafter, referred to as “second light emitting diode group B”), and twelve light emitting diode elements 62 are annularly arranged on the outer periphery thereof (hereinafter, referred to as “third light emitting diode group C”). Name). Further, each light emitting diode element 62 is positioned such that its convex lens 66 faces the outside of the insulating substrate 32.

Further, as shown in FIG. 8, the position of the convex lens 66 of the light emitting diode element 62 belonging to the first light emitting diode group A is the highest, and the positions of the second light emitting diode group B and the third light emitting diode group C are higher. The length of the lead terminal 68 of the light emitting diode element 62 belonging to each group is set so that the position of the convex lens 66 becomes lower in order. As a result, light from the light emitting diode element 62 disposed inside the insulating substrate 32 is not blocked by the light emitting diode element 62 disposed before (outside) the light emitting diode element 62.

The length of the lead terminal 68 of each light emitting diode element is set to a required length by inserting the lead terminal 68 into a through hole formed in the insulating substrate 32 and adjusting the required length. This is realized by fixing the lead terminal 68 by soldering and cutting the surplus part (the part protruding from the back surface of the insulating substrate 32). Although not shown, a predetermined printed pattern is formed on the back surface of the insulating substrate 32, and the respective light emitting diode elements 62 are appropriately connected in series and parallel by the above-mentioned soldering. Thus, a pair of lead wires 40 is taken out.

The light source unit 18 is arranged and fixed on a flange (not shown) provided in the engaging portion 46 of the base 14 in the same manner as in the embodiment shown in FIG. The indicator light 10 is completed by fitting the cutout portion 48 and the engagement protrusion 50 formed on the engagement portion 46 and bonding them.

The indicator lamp 10 using the side-view type light emitting diode element 62 as a light source has its base 14 inserted into a screw hole formed in the upper part of the side of the vehicle body such as a bullet train, for example.
It is attached by screwing it. When power is supplied, all the light emitting diode elements 62 of the light source unit 18 are turned on, and the emitted light is
2 are radiated in the lateral direction. The indicator light 10 employs a side-view type light emitting diode element 62 such that the optical axis of the convex lens 66 of each light emitting diode element 62 substantially coincides with the optical axis of the strip lens 28 formed on the inner surface of the cap portion 12. Because of this configuration, most of the generated light is
And is condensed there, and emitted from the side peripheral portion 26 of the indicator lamp 10 in the lateral direction. Therefore, effective display in the side direction can be realized.

The alignment between the optical axis of the convex lens 66 of the light emitting diode element 62 and the optical axis of the belt-shaped lens 28 is adjusted by adjusting the arrangement and the direction of the convex lens 66 when the light emitting diode element 62 is arranged on the insulating substrate 32. When the insulating substrate 32 on which the light emitting diode elements 62 are integrated is arranged on the flange of the engaging portion 46, the arrangement is adjusted by adjusting the arrangement.

Although not shown, the hat type light emitting diode element 34 and the side-view type light emitting diode element 62 are not shown.
When the light source unit 18 is configured by appropriately combining
Effective display in the front and side directions can be performed, and visibility from multiple directions can be improved.

Further, a light source unit 18 in which a hat-type light emitting diode element 34 is integrated and a light source unit 18 in which a side-view type light emitting diode element 62 is integrated are prepared, and an optimal light source unit 18 is selected according to the application. Can be selected and mounted. That is, when the display is mainly used for display from the front, the light source unit 18 in which the hat type light emitting diode elements 34 are integrated is mounted, and when the display is mainly used for display from the side. May be replaced with the light source unit 18 in which the side-view type light emitting diode elements 62 are integrated. As described above, the indicator lamp 10 has the cap portion 1 having a different structure for each application.
It is not necessary to prepare the light source unit 2, and the light source unit 18 can be diverted to the front display or the side display simply by changing the configuration of the light source unit 18, which is excellent in economy.

FIG. 9 shows a modification of the indicator light 10 according to the present invention. The indicator lamp 10 is characterized in that the base 14 has a bayonet shape, and other configurations are substantially the same as those of the above-described embodiment. That is, the thread part 42 is not formed in the base part 14, and instead, a pair of projections 70 is provided to protrude below the side surface of the base part 14. A pair of external terminals 7 is provided on the bottom of the base 14.
2 are formed. The indicator lamp 10 has a base 14 inserted into a mounting hole formed in a mounting surface, and
Is rotated by a quarter turn to engage the protrusion 70 with the protruding edge of the mounting hole.

The present invention is not limited to the above-described embodiment, but can be appropriately modified without departing from the gist of the present invention. For example, instead of engraving the spin-shaped lens 24 on the top 20 of the cap 12, a converging convex lens may be formed. In addition, the cap portion 12 may be made of a colored and transparent material other than colorless and transparent, or may be made of a material containing a light scattering material. Further, in the above description, an example in which light emitting diode elements are integrated as a light source unit has been described, but it is needless to say that other light emitting elements may be used.

[0025]

According to the indicator lamp of the present invention, a spin-shaped lens for condensing light in the vertical direction with respect to the mounting surface is formed in the translucent cap portion, and the spinning lens is formed in the horizontal direction with respect to the mounting surface. Since the band-shaped lens for focusing is formed, the light emitted from the light source is effectively radiated not only in front of the indicator light but also in the side direction, and the visibility from the front and side is improved. Also, since the light source unit is configured by integrating side-view type light emitting diode elements whose optical axis is adjusted to be substantially horizontal with respect to the mounting surface, most of the generated light enters the belt-shaped lens. Since the light is condensed there and radiated in the lateral direction from the side peripheral portion of the indicator lamp, an effective display particularly in the lateral direction is realized. Further, a first light emitting diode group including a plurality of side-view type light emitting diode elements is disposed on a substrate, and a second light emitting unit including a plurality of side-view type light emitting diode elements is provided on an outer periphery of the first light emitting diode group. A diode group is arranged, and the position of the convex lens of the side-view type LED device belonging to the first light-emitting diode group is higher than the position of the convex lens of the side-view type LED device belonging to the second light-emitting diode group. From the setting, the light from the side-view type light-emitting diode element belonging to the first light-emitting diode group can be blocked by the side-view type light-emitting diode element belonging to the second light-emitting diode group disposed outside. Absent.

[Brief description of the drawings]

FIG. 1 is a side view showing an indicator light according to the present invention.

FIG. 2 is an exploded side view showing the indicator light.

FIG. 3 is a sectional view showing a cap portion of the indicator light.

FIG. 4 is a plan view of the cap section observed from the opening side.

FIG. 5 is a perspective view showing a hat-type light emitting diode element.

FIG. 6 is a perspective view showing a side-view type light emitting diode element.

FIG. 7 is a plan view showing a light source unit using a side-view type light emitting diode element.

FIG. 8 is a side view showing the light source unit.

FIG. 9 is a side view showing an embodiment in which the base is a bayonet type.

FIG. 10 is a side view showing a conventional indicator light.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Indicator light 12 Cap part 14 Cap part 16 Case 18 Light source unit 20 Top part of cap part 22 Annular step part 24 Spin-shaped lens 26 Side peripheral part of cap part 28 Band-shaped lens 34 Hat type light emitting diode element 62 Side-view type light emitting diode element

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁶ , DB name) H01L 33/00 F21Q 3/00

Claims (1)

(57) [Claims] And 1. A cap portion having translucency, forming a casing by fitting the mouthpiece, the indicator comprising by placing the light source unit in the casing, the cap portion
A plurality of annular steps are engraved concentrically on the inner surface of the top, and
Spin-shaped laser that focuses these lights in a direction perpendicular to the mounting surface
And the inner surface of the side peripheral portion of the cap portion.
The light from the light source in the horizontal direction with respect to the mounting surface
A band-like lens having a substantially semicircular cross section is formed, and the light source unit is formed.
The optical axis of the knit is oriented substantially horizontally to the mounting surface
Integrated side-view type light-emitting diode element
And a plurality of side-view type light emitting diode elements.
A first group of light emitting diodes on the substrate.
And the outer periphery of the first light emitting diode group.
Second light emitting die comprising a number of side view light emitting diode elements
An ode group, and the first light emitting diode
Of the side-view type light emitting diode element belonging to the diode group
The position of the lens is the second light emitting diode groove
The position of the convex lens of the side-view type LED device belonging to
An indicator light characterized by a higher setting .