JPH10294006A - Light source structure of signal informing indicator lamp - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate plating process and improve vertical visibility by providing a first transparent member with first and second surfaces, the first surface being disposed so that beam light for ma first LED is incident, having a plurality of stepwise refraction faces, and the second surface having a reflection face for reflecting the beam light from the first LED. SOLUTION: A plurality of LEDs 1 are disposed linearly at given intervals inside of a case 3. A transparent member 2 having a refraction face 2 having a plurality of stepwise refraction face 20 to 28 and reflection face 2b are provided so that lights from the Leeds 1 are incident. Thereby, since a vertical radiation angle being radiated to the periphery can be widened more than an effective radiation angle of the LEDs 1, vertical visibility can be improved. A reflection face can be of tained without applying plating process, as a result cost required for plating process can be reduced, therefore, the costs of the whole product can be reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a light source structure of a signal notification indicator lamp, and more particularly, to a light source structure of a signal notification indicator lamp using LEDs.

[0002]

2. Description of the Related Art Conventionally, there has been known a signal notification indicator which emits a signal by emitting light of each color as signal light. This signal notification indicator light is, for example, a parking lot,
It is installed in automatic machines, robots, production lines, and the like, and is used to signal various states such as, for example, fullness, shortage of materials, work clogging, and the like. FIG.
It is sectional drawing which showed the conventional signal notification indicator light. This structure is disclosed, for example, in Japanese Utility Model Laid-Open No. 4-108806. Referring to FIG. 16, in this conventional example, two reflecting surfaces 112 are formed by projecting a substantially central portion of a cylindrical portion extending vertically. And these two reflection surfaces 1
A plurality of LEDs 111 are arranged circumferentially above and below 12. The reflection surface 112 and the LED 111 are covered by a globe 113 made of a diffusive lens having a vertical slit (not shown).

[0003] In the conventional signal notification indicator lamp having such a configuration, after the light from the LED 111 is reflected by the reflection surface 112, the globe 113 made of a diffusive lens is used.
And is emitted to the surroundings. With this diffusive lens, the reflective surface 11 can be viewed from any direction when viewed from the outside.
A substantially planar light source corresponding to 2 is visible.

[0004]

However, FIG.
In the conventional signal notification indicator lamp shown in (1), the reflecting surface 112 is formed by plating a metal such as aluminum on a resin material, for example. For this reason, there has been a problem that the plating process is expensive and the price of the entire product increases. Further, in the reflection type signal notification indicator shown in FIG. 16, the vertical width of the light reflected by the reflection surface 112 is the same as the effective radiation angle of the LED 111 (usually about 12 °). The effective radiation angle in the vertical direction is the same as that in the case where light is directly emitted without reflecting the LED 111. For this reason, it is difficult to improve the visibility of the light source in the vertical direction in the conventional signal notification indicator shown in FIG.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and does not require plating, and can improve the visibility in a vertical direction. The purpose is to provide.

[0006]

According to a first aspect of the present invention, a light source structure of a signal notification indicator lamp includes a first LED serving as a light source and a first transparent member. The first transparent member includes a first surface and a second surface. The first surface is the first surface
It is arranged so that light rays from the LED of
It has a plurality of step-like refractive surfaces. The second surface has a reflective surface for reflecting light rays from the first LED that enter through the first surface. According to the configuration of the first aspect, the light beam of the first LED is refracted on the step-like refraction surface that is the boundary surface between different media, and then travels through the first transparent member. Reflected laterally on the reflective surface,
Light rays traveling through the first transparent member are again transmitted through the plurality of step-like refraction surfaces and diffused. As described above, in the light source structure of the signal notification indicator according to the first aspect, the first transparent member has both functions of a refraction surface and a reflection surface by utilizing the refraction and reflection characteristics of light. It becomes possible. As a result, it is possible to obtain a reflective surface without performing a plating process, and as a result, it is possible to reduce the cost of the plating process and reduce the cost of the entire product. Also, since the light having the effective radiation angle of the LED is reflected by the reflecting surface and then refracted in the vertical direction by the plurality of refraction surfaces, it is possible to obtain a light source having a vertical width wider than the effective radiation angle of the LED. Can be. As a result, the visibility in the vertical direction can be improved as compared with the conventional structure in which the light is reflected by the smooth reflecting surface.

According to a second aspect of the present invention, in the configuration of the first aspect, a diffusing lens for diffusing the light beam reflected by the first transparent member is further provided. The plurality of first LEDs are arranged substantially linearly at a predetermined interval so as to face the first surface.

According to a third aspect of the present invention, in the first configuration, a diffusing lens for diffusing a light beam reflected by the first transparent member is further provided. The first and second surfaces are provided substantially circumferentially. Further, the plurality of first LEDs are arranged at predetermined intervals in a substantially circumferential shape so as to face the first surface.

According to a fourth aspect of the present invention, in the configuration of the first aspect, a diffusing lens for diffusing a light beam reflected by the first transparent member is further provided, and the first transparent member is provided. Are provided in a substantially polygonal shape. Further, the plurality of first LEDs are arranged at a predetermined interval in a substantially polygonal shape so as to face the first surface.

According to a fifth aspect of the present invention, the light source structure of the signal notification indicator lamp includes first and second LEDs serving as light sources, a first transparent member, and a second transparent member. The first transparent member includes a first surface and a second surface, and the second transparent member includes a third surface and a fourth surface. The first surface is the first surface
Has a plurality of step-like refracting surfaces arranged so that light rays from the LEDs of the above-mentioned type are incident thereon. The second surface has a reflective surface for reflecting light rays from the first LED that enter through the first surface. The third surface has a plurality of step-like refracting surfaces arranged so that light rays from the second LED are incident thereon. The fourth surface has a reflecting surface for reflecting a light beam from the second LED that enters through the third surface. What is the first transparent member and the second transparent member?
Are connected in the shape of. The first LED is arranged on the fourth surface of the second transparent member, and the second LED is arranged so as to face the second surface of the first transparent member. The second surface of the first transparent member is arranged to refract light from the second LED, and the fourth surface of the second transparent member is
Are arranged to refract light rays from the first LED. Thus, in the light source structure of the signal notification indicator lamp according to the fifth aspect, the first and second light sources are formed by utilizing the refraction and reflection characteristics of light at the boundary surface of different media, as in the first aspect. The transparent member has a refracting surface and a reflecting surface, respectively. This eliminates the need for plating the reflective surface as in the related art, thereby reducing costs associated with the plating. Further, since the light within the effective radiation angle emitted from the first and second LEDs is refracted a plurality of times by the refraction surfaces of the first and second transparent members, the first and second LEs are finally obtained.
D is diffused in the vertical direction at an emission angle larger than the effective emission angle of D. Therefore, the width of the light source in the vertical direction can be increased as compared with the case where the light from the LED is reflected and emitted by only the conventional reflecting surface, and as a result, the visibility in the vertical direction is improved. be able to. Furthermore, in the configuration of the fifth aspect, the first transparent member and the second transparent member are connected in a “<” shape, and the first LED is attached to the fourth surface of the second transparent member. , The second LED to the second of the first transparent member.
By arranging the LEDs so as to face each other, the LED can be completely covered inside the first and second transparent members, so that the aesthetic appearance is improved and the dust resistance is improved. Has a unique effect.

According to a sixth aspect of the present invention, in the configuration of the fifth aspect, a diffusing lens for diffusing the light rays reflected by the first and second transparent members is further provided. Also, the plurality of first LEDs are arranged substantially linearly at predetermined intervals so as to face the fourth surface of the second transparent member, and the plurality of second LEDs are connected to the first transparent member. Are arranged substantially linearly at predetermined intervals so as to face the second surface of the transparent member.

According to a seventh aspect of the present invention, in the configuration of the fifth aspect, a diffusing lens for diffusing a light beam reflected by the first and second transparent members is further provided, and the first and second transparent members are provided. The second transparent member is provided in a substantially circumferential shape. A plurality of first LEDs are arranged at a predetermined interval in a substantially circumferential shape so as to face the fourth surface of the second transparent member, and a plurality of second LEs are arranged.
D is arranged at a predetermined interval substantially circumferentially so as to face the second surface of the first transparent member.

According to an eighth aspect of the present invention, in the configuration of the fifth aspect, a diffusing lens for diffusing the light rays reflected by the first and second transparent members is further provided. Then, the first and second transparent members are provided in a substantially polygonal shape, and the plurality of first LEDs are substantially polygonally spaced at a predetermined interval so as to face the fourth surface of the second transparent member. Deploy. Further, a plurality of second LEs
D is arranged at a predetermined interval in a substantially polygonal shape so as to face the second surface of the first transparent member.

[0014]

Embodiments of the present invention will be described below with reference to the drawings.

(Embodiment 1) FIG. 1 is a sectional view for explaining a light source structure of a signal notification indicator according to Embodiment 1 of the present invention, and FIG. 2 has the light source structure shown in FIG. It is a perspective view showing the whole signal information indicator lamp composition. FIG.
FIG. 3 is a partially enlarged view for explaining a light diffusion state of a light source structure of the signal notification indicator light shown in FIG. 1. First, FIG.
Referring to FIG. 2 and FIG. 2, in the light source structure of the signal notification indicator according to the first embodiment, a plurality of LEDs 1 are linearly arranged at predetermined intervals inside case 3. A transparent member 2 having a refraction surface 2a having a plurality of step-like refraction surfaces 20 to 28 and one reflection surface 2b is provided so that light from the LED 1 is incident thereon. The transparent member 2 is formed of a material having a refractive index higher than that of air (refractive index 1), and is preferably made of an acrylic resin (refractive index 1.49), a polycarbonate resin (refractive index 1.586), and quartz. Glass (refractive index 1.458)
9) is applicable.

A diffusing lens 4 having a vertical slit (not shown) is fitted in the opening of the case 3. The light from the LED 1 is diffused laterally by the diffusing lens 4.

The state of light emission of the signal notification indicator light having the above configuration will be described with reference to FIG. Usually, the effective emission angle (A) of the high-brightness type LED 1 is set to 12 ° to 15 ° around the optical axis. When a light beam having the LED 1 as a light source enters the transparent member 2, the light beam enters the transparent member 2 from air (refractive index 1). That is, since the light enters from the medium having a low refractive index (air) to the medium having a high refractive index (the transparent member 2), the light beam is transmitted to the plurality of refraction surfaces 23, 2
It is transmitted and refracted at 5 and 27. Next, the refracted light beam enters the air from the transparent member 2. In this case, the light is incident from the medium having a high refractive index (the transparent member 2) to the medium (air) having a low refractive index. 2
The light is totally reflected at b). Then, since the reflected light is set to be incident on the boundary surface at an angle of incidence that is much smaller than the critical angle, the refraction surfaces 20, 22, and 2
The light is transmitted and refracted at 4. The transmitted and refracted light is
It has an emission angle (B) greater than one effective emission angle (A), and this light ray is emitted to the surroundings through the diffusive lens 4.

Here, with respect to the light beam passing through the eye shown in FIG. 3, the incident angle d at a is set so that the incident angle a at c slightly exceeds the critical angle. The incident angle g at d is L
The setting is made so that the light beam from the ED 1 is not obstructed, and that the light beam exiting the ED 1 is refracted downward as much as possible. Further, for the light beam passing through the surface case, the incident angle f at the surface is set such that the incident angle c at the surface exceeds the critical angle. Further, the incident angle c at the point S is set to be large so that the light beam exiting the point is refracted upward as much as possible. The incident angle i at the center is set so as to be transmitted and refracted within a range not exceeding the critical angle. The incident angle e at the key is also set to an angle at which the incident angle b at the key exceeds the critical angle with respect to the light beam passing through the ark. Further, the angle of incidence h is set so that refraction is performed such that the refracted light beam is located almost in the middle between the light beam refracted in step S and the light beam refracted in step d.

As described above, in the light source structure according to the first embodiment, by using the transparent member 2 having the plurality of refraction surfaces 20 to 28 and one reflection surface 2b, the LED 1
, The vertical radiation angle (B) emitted to the surroundings can be wider than the effective radiation angle (A), and as a result, the vertical visibility can be improved. Further, in the light source structure according to the first embodiment, it is possible to make the transparent member 2 have both functions of a refraction surface and a reflection surface by utilizing the refraction and reflection characteristics of light. As a result, it is possible to obtain a reflective surface without performing a plating process, and as a result, it is possible to reduce the cost of the plating process and reduce the cost of the entire product.

(Embodiment 2) FIG. 4 is a front view (a) and a bottom view (b) showing a light source structure of a signal notification indicator according to Embodiment 2 of the present invention. 5A and 5B are a cross-sectional view showing a structure obtained by adding a glove made of a diffusive lens to the structure shown in FIG. 4 and a cross-sectional view for explaining a light emission state of the light. . FIG. 6 is a cross-sectional view showing a signal notification indicator light having a single-layer structure to which the light source structure shown in FIG. 5 is applied, and FIG. 7 is a cross-sectional view showing a signal notification indicator light having a three-layer structure. And (b) an external perspective view. First, referring to FIG. 4, in the light source structure according to the second embodiment, unlike the above-described first embodiment, the transparent member 32 is formed in a substantially circumferential shape. Then, a plurality of LEDs 1 are circumferentially arranged at predetermined intervals so as to face such a transparent member 32 having a circular shape.

Referring to FIGS. 4 and 5, in the structure according to the second embodiment, similarly to the light source structure according to the first embodiment, by utilizing the refraction and reflection characteristics of light, The transparent member 32 can have both functions of a refraction surface and a reflection surface. As a result, it is possible to obtain a reflective surface without performing a plating process, and as a result, it is possible to reduce the cost of the plating process and reduce the cost of the entire product. Further, the effective radiation angle (A) of the LED 1 is provided by the transparent member 32 having both a plurality of step-like refraction surfaces and one reflection surface.
It is possible to emit light at a larger radiation angle (B). Thereby, the visibility in the vertical direction can be improved. Further, if the light source structure shown in FIGS. 4 and 5 is used, the visibility in the vertical direction can be improved in any direction of 360 °, unlike the first embodiment.

In the application example shown in FIG. 6, a glove 34 made of a diffusive lens having a vertical slit (not shown) is fitted in the upper part of the main body 35, and the inside of the glove 34 is substantially inserted. A circumferential transparent member 32 and a plurality of substantially circumferential LEDs 1 opposed thereto are provided. The upper surface of the globe 34 is covered by a cover 36.

In the application example shown in FIG. 7, unlike the application example shown in FIG. 6, a globe 34 composed of a diffusive lens having a vertical slit is laminated in a three-layer structure. With this configuration, the LEDs 1a, 1b and 1
By configuring each of the LEDs c with LEDs of different colors, it can be used as a signal notification indicator capable of displaying three types of signals. Also in this case, by using the transparent member 32 having both a plurality of refraction surfaces and one reflection surface, plating processing becomes unnecessary and visibility in the vertical direction can be improved.

(Embodiment 3) FIG. 8 is a front view showing an internal structure of a signal notification indicator according to a third embodiment of the present invention, and FIG. 9 is an external view of the signal notification indicator shown in FIG. It is a perspective view. FIG. 10 is a cross-sectional view for explaining a light emission state of the signal notification indicator light shown in FIG.

First, referring to FIG. 8 and FIG. 9, in the light source structure of the signal notification indicator according to the third embodiment, a transparent member 52 in the shape of a square is provided in a case 53. The transparent member 52 includes a plurality of step-like refraction surfaces 70 to 70.
A first surface 52a having 77 and 85-91;
A second surface 52b having two reflecting surfaces, a third surface 52c having a plurality of step-like refracting surfaces 78 to 84 and 92 to 99, and a fourth surface 52d having one reflecting surface are provided. I have.

Also, the fourth surface 52d and the second surface 52
b and the first LED 51 and the second LED 51, respectively.
LED55 is arranged. The first LED 51 is installed upward on the substrate 56 and the second LED 55
Are set downward on the substrate 57. Further, as shown in FIG. 9, a plurality of first LEDs 51 and a plurality of second LEDs 55 are arranged substantially linearly at predetermined intervals. Further, a diffusive lens 54 having a vertical slit (not shown) is fitted into the opening of the case 53 so as to cover the transparent member 52, the first LED 51, and the second LED 55.

Next, a light emitting state of the light source structure according to the third embodiment will be described with reference to FIG. First,
The first LED 51, the second LED 55, and the transparent member 52 are installed so that the incident angles of j to o are all equal to or greater than the critical angle. Thus, the light from the first LED 51 is totally reflected by the reflection surface 52b, and
The light from the LED 55 is totally reflected by the fourth reflection surface 52d. As described above, by utilizing the total reflection characteristics of light at the interface between different media, in the present invention, the second surface 52b and the fourth surface 52d are used as reflection surfaces without plating. It can be used. This makes it possible to provide an inexpensive product without the disadvantage that the manufacturing cost is increased due to the plating process.

Light rays passing through the tart-to-tate shown in FIG. 10 are transmitted and refracted at the boundary surface between the tart, tipped and tipped, totally reflected by the te, and transmitted and refracted again at g.

Also, a light ray passing through a na-ny-ne-ne-no is transmitted and refracted at the boundary between na, d, and n, totally reflected by the ne, and transmitted and refracted again by the no.

The light from the second LED 55 follows the same path as above, and the second surface 52b, the first surface 52a,
The light is transmitted and refracted on the third surface 52c, then totally reflected on the fourth surface 52d, transmitted and refracted again on the third surface 52c, and emitted.

As described above, in the third embodiment, the light from the first LED 51 and the light from the second LED 55 are diffused by the diffusing lens 5 by one total reflection and plural transmission refractions.
4, the light is emitted at an emission angle (B1) larger than the effective emission angle (A1) of the first LED 51, and the effective emission angle (A2) of the second LED 55 is emitted.
At a larger radiation angle (B2), the light from the second LED 55 is radiated to the outside. Thereby, the width of the light in the vertical direction can be increased, and the visibility in the vertical direction can be improved.

In the structure according to the third embodiment,
A first L is provided inside the transparent member 52 bent in a
Since the ED 51 and the second LED 55 can be arranged, the appearance is good and the dust prevention is excellent.

(Embodiment 4) FIG. 11 is a front view (a) showing a light source structure of a signal notification indicator according to a fourth embodiment of the present invention, and a bottom view (b) of an LED portion. FIG. 12 is a cross-sectional view (a) when a globe made of a diffusive lens is added to the light source structure shown in FIG. 11 and a cross-sectional view (b) for explaining a light emitting state. FIG.
13A is a cross-sectional view of a signal notification indicator light having a laminated structure including the light source structure shown in FIG. 12 and FIG. FIGS. 14A and 14B are a cross-sectional view (a) and an external perspective view (b) of a case where the light source structure shown in FIG. 11 is applied to a single-layer signal notification indicator.

Referring to FIGS. 11 and 12, in the light source structure of the signal notification indicator according to the fourth embodiment, the light source structure according to the third embodiment described above is modified into a circular type. More specifically, the transparent member 62 in the shape of a “<”
Are formed in a hollow, substantially circumferential shape, and substrates 67 and 66 are provided above and below the inside of the transparent member 62, respectively. A plurality of first LEDs 61 are disposed on the lower substrate 66 so as to face the fourth surface 62d in a substantially circumferential shape at a predetermined interval upward. Further, the second substrate 67 is provided on the upper substrate 67 so as to face the second surface 62b.
A plurality of LEDs 65 are arranged downward at predetermined intervals circumferentially.

FIG. 12 shows a structure in which the light source structure shown in FIG. With reference to FIG. 12, transparent member 62 is disposed in the shape of a “<” as described above, and first LED 61 and second LED 65 are correspondingly provided.
Also, by disposing them substantially in a circular shape, as in the third embodiment described above, the transparent member 62 can be used as a reflection surface without plating the inner surface. In addition, light can be emitted at an emission angle (B1) wider than the effective emission angle (A1) of the first LED 61, and
Light can be emitted at an emission angle (B2) larger than the effective emission angle (A2) of the second LED 64. Thereby, the visibility in the vertical direction can be improved. Also,
By providing the transparent member 62, the first LED 61, and the second LED 65 in a substantially circumferential shape as in the fourth embodiment, the line of sight from any direction of 360 ° can be improved.

Further, when the light source structure according to the fourth embodiment is applied to a three-layered signal information display lamp as shown in FIG. 13, the vertical visibility of each of the three layers can be improved. Since it is not necessary to apply a plating process to the reflecting surface, the manufacturing cost can be reduced by three layers. In the laminated type signal information display lamp shown in FIG. 13, three layers of globes 64 made of a diffusive lens having a vertical slit are laminated on the main body 68a, and a transparent member 62 is provided in the globe 64 of each layer. Is installed.
A cover 69a is mounted on the uppermost glove 64.

In the application example shown in FIG. 14, the main body 68b
A glove 64a having only one layer is provided thereon, and a light source structure as shown in FIG. 11 is arranged in the glove 64a.

(Embodiment 5) FIG. 15 is a sectional view (a) and a bottom view (b) showing a light source structure of a signal notification indicator according to Embodiment 5 of the present invention. Referring to FIG. 15, the fifth embodiment has a structure basically similar to the structure according to the fourth embodiment shown in FIG. However, in the fifth embodiment, the first LED 61 and the second
Are arranged in a double circle. With this configuration, the luminance can be easily improved as compared with the structure of the fourth embodiment.

The embodiments disclosed this time are to be considered in all respects as illustrative and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description of the embodiments, and further includes all modifications within the scope and meaning equivalent to the terms of the claims. For example, in the second embodiment shown in FIG.
And a substantially circular transparent member according to the fourth embodiment shown in FIG.
Similar effects can be obtained by arranging the structure of the ED in a substantially polygonal shape.

[0040]

As described above, according to the present invention, it is possible to provide a light source structure of a signal notification indicator light capable of reducing manufacturing costs and improving visibility in the vertical direction.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a light source structure of a signal notification indicator according to Embodiment 1 of the present invention.

FIG. 2 is a perspective view showing an overall configuration of the signal notification indicator light shown in FIG.

FIG. 3 is a partially enlarged view for explaining a light emission state by the light source structure shown in FIG. 1;

4A and 4B are a front view and a bottom view showing a light source structure of a signal notification indicator according to a second embodiment of the present invention.
It is.

5A is a cross-sectional view when the light source structure shown in FIG. 4 is installed in a glove, and FIG. 5B is a cross-sectional view for explaining a light emission state of the light source structure.

FIG. 6 is a cross-sectional view showing a single-layer signal notification indicator to which the light source structure according to the second embodiment shown in FIG. 5 is applied.

FIGS. 7A and 7B are a cross-sectional view and a perspective view, respectively, showing a stacked-type signal notification indicator to which the light source structure according to the second embodiment shown in FIG. 5 is applied.

FIG. 8 is a sectional view showing a light source structure of a signal notification indicator according to Embodiment 3 of the present invention.

FIG. 9 is a perspective view showing the overall configuration of the signal notification indicator light shown in FIG.

FIG. 10 is a cross-sectional view for explaining a light emission state by the light source structure shown in FIG.

11A and 11B are a front view and a bottom view showing a light source structure of a signal notification indicator according to a fourth embodiment of the present invention.

12A is a cross-sectional view when the light source structure shown in FIG. 11 is installed in a glove, and FIG. 12B is a cross-sectional view for explaining a light emission state of the light source structure.

13A and 13B are a cross-sectional view and a perspective view showing an external appearance of a stacked signal notification indicator to which the light source structure according to the fourth embodiment shown in FIG. 12 is applied.

14A is a cross-sectional view showing a single-layer type signal notification indicator to which the light source structure according to the fourth embodiment shown in FIG. 12 is applied, and FIG.

15A and 15B are a cross-sectional view and a bottom view showing a light source structure of a signal notification indicator according to a fifth embodiment of the present invention.

FIG. 16 is a cross-sectional view showing a light source structure of a conventional reflection-type signal notification indicator light.

[Explanation of symbols]

 1: LED 2: transparent member 2a: first surface (refractive surface) 2b: second surface (reflective surface) 3: case 4: diffusive lens 32: transparent member 51: first LED 52: transparent member 55 : Second LED 61: first LED 62: transparent member 65: second LED

Claims (8)

[Claims] 1. A first LED serving as a light source, a first surface having a plurality of step-like refracting surfaces arranged so that light rays from the first LED are incident thereon, and the first surface A first transparent member including a second surface having a reflecting surface for reflecting a light beam from the first LED that enters through the first LED. And a diffusing lens for diffusing a light beam reflected by the first transparent member, wherein the plurality of first LEDs are substantially linear so as to face the first surface. The light source structure of the signal notification indicator lamp according to claim 1, wherein the light source structure is arranged at predetermined intervals in a shape. 3. The light-emitting device according to claim 1, further comprising a diffusing lens for diffusing a light beam reflected by the first transparent member, wherein the first and second surfaces of the first transparent member are provided in a substantially circular shape. The signal notification indicator lamp according to claim 1, wherein a plurality of the first LEDs are arranged at a predetermined interval substantially circumferentially so as to face the first surface. Light source structure. And a diffusing lens for diffusing a light beam reflected by the first transparent member, wherein the first and second surfaces of the first transparent member are provided in a substantially polygonal shape. 2. The light source structure of a signal notification indicator according to claim 1, wherein a plurality of the first LEDs are arranged at a predetermined interval in a substantially polygonal shape so as to face the first surface. 3. . 5. A first surface having first and second LEDs serving as light sources, a first surface having a plurality of step-like refraction surfaces arranged so that light rays from the first LED are incident thereon, and A first transparent member including a second surface having a reflecting surface for reflecting a light beam from the first LED incident through the first surface; and a light beam from the second LED enters A fourth surface having a plurality of step-like refracting surfaces arranged as described above, and a reflecting surface for reflecting a light beam from the second LED that enters through the third surface. And a second transparent member including a surface, wherein the first transparent member and the second transparent member are
The first LED faces the fourth surface of the second transparent member, and the second LED faces the second surface of the first transparent member. The second surface of the first transparent member is arranged to refract light rays from the second LED, and the fourth surface of the second transparent member is The light source structure of the signal notification indicator light arranged to refract the light beam from the first LED. 6. The light-emitting device according to claim 1, further comprising a diffusing lens for diffusing light rays reflected by the first and second transparent members, wherein a plurality of the first LEDs are connected to a fourth of the second transparent members. Are arranged in a substantially linear manner at a predetermined interval so as to face the surface of the first transparent member, and the plurality of second LEDs are opposed to the second surface of the first transparent member. The light source structure of the signal notification indicator lamp according to claim 5, wherein the signal notification indicator lamp is arranged substantially linearly at a predetermined interval. 7. A light-emitting device further comprising: a diffusing lens for diffusing a light beam reflected by the first and second transparent members, wherein the first and second transparent members are provided in a substantially circumferential shape. A plurality of the first LEDs are arranged at a predetermined interval in a substantially circumferential shape so as to face a fourth surface of the second transparent member; The light source structure of the signal notification indicator lamp according to claim 5, wherein the LEDs are arranged at a predetermined interval substantially circumferentially so as to face the second surface of the first transparent member. And a diffusing lens for diffusing light rays reflected by the first and second transparent members, wherein the first and second transparent members are provided in a substantially polygonal shape, The plurality of first LEDs are connected to a fourth of the second transparent members.
Are arranged at a predetermined interval in a substantially polygonal shape so as to face the surface of the first transparent member.
The light source structure of a signal notification indicator lamp according to claim 5, wherein the light source structure is arranged in a substantially polygonal shape at a predetermined interval so as to face the surface of the light source.