JP2012199015A - Electronic device and light guide - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a technology which can uniform the light-up of light-emitting parts arranged in corners of a device body design case and peripheral edge areas located continuously to the corners.SOLUTION: This electronic device includes: the device body design case with its light-emitting part 11 arranged at a first corner exposed to the outside and a first peripheral edge continuous to the first corner; a rod-like first light guide 14a arranged inside the design case along a first peripheral-edge light-emitting part 13a which is the light-emitting part of the first peripheral edge, and so arranged that light incident from an end face in an longitudinal direction can be guided out to the first peripheral edge light-emitting part 13a; a first light source 15a to make light incident to an end face the first light guide 14a; a second light guide 16 arranged inside the design case countering a first corner light-emitting part 12a which is the light-emitting part of the first corner, and arranged to make light incident from a first end face 16b located at the other side facing the first corner light-emitting part 12a to the first corner light-emitting part 12a; and a second light source 17b to make light incident to a first end face 16b of the second light guide 16.

Description

  The present invention relates to an electronic device and a light guide provided with a design case of a device body having a light emitting portion.

  In a small electronic device such as a mobile phone, a light emitting unit may be provided in a design case of the device body. For example, a cellular phone is configured to visually notify the user of an incoming call, reception, or the like in addition to the notification sound or instead of the notification sound by illuminating a light emitting unit provided in the case. Such a light emitting unit is generally configured such that a part of the design case is transparent and light emitted from a light source disposed inside the case is transmitted to the outside of the case. As a light source, an LED is generally used in a small electronic device from the viewpoint of space saving.

  In a mobile phone, for example, the light emitting part may be formed in a strip shape along the edge of the outer periphery of the case so that the light emission of the light emitting part can be confirmed from various angles. Such an elongated light emitting portion needs to emit light uniformly as a whole from the viewpoint of visibility.

  The LED used as the light source is a point light source. Therefore, when trying to uniformly emit light at the outer periphery of the case using LEDs, a large number of LEDs directed toward the outer periphery are arranged densely, and a diffuser plate or the like is arranged in front of the LEDs, resulting in uneven brightness. It is conceivable to have a configuration that reduces this. However, in the case of this configuration, there is a problem that the space for arranging the LEDs is insufficient in a small electronic device, and the number of members increases, resulting in an increase in cost.

  On the other hand, using light guide rods that have been processed, printed, or diffused to disperse light incident from the end face to the side, light is emitted indirectly toward the outer periphery. There is a method to do (see Patent Documents 1 and 2). In this method, since a wide (long) region can be uniformly irradiated with one LED, it is often used as illumination of the outer peripheral portion of a small electronic device.

  However, in the method using this light guide rod, it is not particularly problematic to uniformly illuminate a straight portion or a gently curved portion, but when the light guide is bent at a right angle or a small bend R as shown in FIG. Since the light intensity after the bent portion is reduced, it is difficult to uniformly shine the outer peripheral portion including the corner portion. That is, as shown in FIG. 7, the light emitting unit 103 is formed in a substantially U shape extending in a strip shape along the outer peripheral edge of the design case of the device body, and the light guide 104 is along the inner side surface of the light emitting unit 103. In the case where the light emitting unit 103 is bent in a substantially U shape, the light emitting unit 103 can be illuminated uniformly in the portions 104a and 104b extending substantially linearly from the light sources 105 at both ends of the light guide 104. In addition, the intensity of light emitted from the corner portions 104d and 104e of the light guide 104 and the edge portion 104c connecting them is reduced.

  Moreover, as shown in FIG. 8, it is also conceivable that a plurality of light guide rods 104 are combined so that a bent portion is not provided in the light guide portion. In the case of this configuration, the linearly configured edge portion can be irradiated uniformly without attenuation of the light intensity, but the corner portion of the light emitting portion 103 is not uneven for the corner portion where the direction of light emission changes. It is difficult to design a light distribution so that the illumination is uniform.

Japanese Patent No. 4463246 JP 2010-157523 A

  The present invention has been made to solve the above-described problems of the prior art, and an object of the present invention is to provide a light emitting portion provided at a corner portion of a design case of an apparatus main body and an edge portion connected to the corner portion. It is to provide a technique that can be shined like this.

In order to achieve the above object, an electronic device according to the present invention includes:
A design case of a device main body having a light emitting portion on a first corner portion exposed to the outside and a first edge portion connected to the first corner portion;
Provided inside the design case along the first edge portion light emitting portion, which is the light emitting portion of the first edge portion, and can emit light incident from the end face in the longitudinal direction to the first edge portion light emitting portion. A rod-shaped first light guide configured as follows:
A first light source that makes light incident on the end face of the first light guide;
Opposite the first corner light emitting portion, which is the light emitting portion of the first corner portion, is provided in the design case, and is incident from the first end surface opposite to the side facing the first corner light emitting portion. A second light guide configured to be able to emit light to the first corner light emitter,
A second light source that makes light incident on the first end face of the second light guide;
It is characterized by providing.

The design case includes a second side edge opposite to the first side edge connected to the first corner and a second side opposite to the first side edge connected to the second edge. A corner portion, and a light emitting portion at the second edge portion and the second corner portion,
The second light guide further opposes a second edge light emitting part which is a light emitting part of the second edge part, and a second corner light emitting part which is a light emitting part of the second corner part, The light incident from the second end face opposite to the side facing the second corner light emitting part is configured to be able to emit to the second corner light emitting part,
A third light source for making light incident on the second end face of the second light guide;
It is good to be comprised so that the light which injects from both the said 1st end surface and the said 2nd end surface in a said 2nd light guide can be radiate | emitted to the said 2nd edge part light emission part.
Or
The design case further includes a third corner portion opposite to the second corner portion where the second edge portion continues, and a light emitting portion at the third corner portion,
A fourth light source is provided inside the design case so as to face the third corner light emitting portion which is the light emitting portion of the third corner portion, and further includes a fourth light source that directly enters light into the third corner light emitting portion. May be.
In that case, it is preferable that the second light guide has a triangular plate shape having three end surfaces which are the first end surface, the second end surface, and a third end surface facing the second edge light-emitting portion.

In order to achieve the above object, the electronic device in the present invention is:
A design case of a device main body having a light emitting portion at a corner portion exposed to the outside and a peripheral edge portion connected to the corner portion;
A bar-shaped light source that is provided inside the design case along the edge portion light emitting portion that is the light emitting portion of the edge portion, and is configured to be able to emit light incident from the end face in the longitudinal direction to the edge portion light emitting portion. A light guide;
A first light source that makes light incident on the end face of the light guide;
A second light source that is provided inside the design case so as to face a corner light emitting portion that is a light emitting portion of the corner, and that directly enters light into the corner light emitting portion,
It is characterized by providing.

  The light emitting part may have lame or colored glass flakes dispersed therein, or may be printed with transparent ink mixed with the lame or glass flakes.

In order to achieve the above object, the light guide in the present invention is:
A first light guide having a plurality of reflection surfaces along the longitudinal direction, which is a rod-shaped light guide, and reflects light incident from one end toward one side surface extending in the longitudinal direction;
A substantially triangular plate-shaped light guide body, wherein one end face of three end faces facing each other and two corner end faces respectively connected to both ends of the end face are continuous light exit faces, and the other two A second light guide body into which light is incident independently from each of the end faces;
It is characterized by providing.

The one side surface of the first light guide body may be connected to one of the two corner end faces of the second light guide body to form a light exit surface extending in a substantially L shape.
further,
A rod-shaped light guide, further comprising a third light guide having a plurality of reflection surfaces along the longitudinal direction for reflecting light incident from one end toward one side surface extending in the longitudinal direction;
The one side surface of the third light guide body may be connected to the other of the two corner end faces of the second light guide body to form a light exit surface extending in a substantially U shape.

In order to achieve the above object, the electronic device in the present invention is:
A design case including a light emitting portion including at least two edge portions and a corner portion formed by the two edge portions;
A light guide for guiding incident light along the edge of the design case;
A first light source that emits the light incident on the light guide;
A second light source that emits light toward the corner of the design case,
The light emitted from the first light source is emitted outside the design case from the edge of the light emitting unit,
The light emitted from the second light source is emitted from the inside of the design case to the outside of the corner portion.

  The second light source may emit light directly toward the corner of the light transmission case.

  The light emitting part of the light transmitting case may have lame or colored glass flakes dispersed therein, or transparent ink mixed with the lame or glass flakes may be printed.

  According to the present invention, the edge of the light emitting unit is uniformly illuminated using the rod-shaped first light guide, and the corners of the light emitting unit are directly illuminated by the second light source, thereby designing the electronic device. In the light emitting part provided on the corner of the case and the edge connected to the corner, the corner and the edge of the light emitting part can be uniformly illuminated.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic plan view showing configurations of a light emitting unit, a light guide, and a light source of an electronic apparatus according to Example 1 of the present invention. The typical top view which shows the structure of the light emission part of the electronic device which concerns on Example 2 of this invention, a light guide, and a light source. The typical top view which shows the structure of the light emission part of the electronic device which concerns on Example 3 of this invention, a light guide, and a light source. The typical top view which shows the structure of the design case of the electronic device which concerns on Example 3 of this invention. 1 is a schematic perspective view showing a configuration of an electronic apparatus according to an embodiment of the present invention. The typical top view which shows the structure of the reflective surface provided in a light guide. The typical top view which shows the structure of the light emission part of the electronic device which concerns on the prior art example 1, a light guide, and a light source. FIG. 10 is a schematic plan view showing a configuration of a light emitting unit, a light guide, and a light source of an electronic device according to Conventional Example 2.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention will be exemplarily described in detail with reference to the drawings. However, the dimensions, materials, shapes, relative arrangements, and the like of the components described in this embodiment are not intended to limit the scope of the present invention only to those unless otherwise specified. .

Example 1
An electronic apparatus according to Embodiment 1 of the present invention will be described with reference to FIGS. FIG. 1 is a schematic plan view showing configurations of a light emitting unit, a light guide, and a light source of an electronic apparatus according to Example 1 of the present invention. FIG. 5 is a schematic perspective view illustrating the configuration of the electronic apparatus according to the embodiment of the invention. In this embodiment, as shown in FIG. 5, a foldable mobile phone is taken as an example. FIG. 6 is a schematic plan view showing a configuration of a reflecting surface provided in the light guide.

  As shown in FIG. 5, the electronic device 1 according to the present embodiment includes a design case 10 of the device body and a light emitting unit 11 extending in a strip shape along the outer peripheral edge of the design case 10. The light emitting unit 11 includes two corner portions (corner light emitting portions) 12a and 12b and three edge portions (edge light emitting portions) 13a and 13b extending in three strips connected via the two corner portions 12a and 12b. 13c, and a substantially U shape. The light emitting unit 11 is made of a material that can transmit light, such as plastic.

  As shown in FIG. 1, the electronic device 1 according to the present embodiment includes light guide bars 14 a and 14 b as first light guides and a first light source inside a light emitting unit 11 inside the design case 10. LEDs (light emitting diodes) 15a and 15b, a light guide plate 16 as a second light guide, an LED 17a as a third light source, and an LED 17b as a second light source are accommodated. In the light guide of this embodiment, the side surface of the light guide bar 14a and the side surface of the light guide bar 14b are connected to the two corner end surfaces of the end surface (light output surface 16c) of the light guide plate 16 so as to be substantially U-shaped. A light exit surface extending in a bent shape is formed. The light guide bars 14a and 14b and the light guide plate 16 are made of a material that is transparent to LED light, such as an organic material such as acrylic resin or polycarbonate resin, or an inorganic material such as multicomponent glass or quartz glass. In addition, the material of each light guide will not be specifically limited if the light of LED can fully be permeate | transmitted.

  Light emission from the edge portions 13a and 13b of the light emitting portion 11 is mainly performed by the light guide rod 14a and the LED 15a, and the light guide rod 14b and the LED 15b, respectively. Here, the light emission of the edge portion 13a by the light guide rod 14a and the LED 15a will be described, and the light emission of the edge portion 13b is the same as that of the edge portion 13a, and the description thereof will be omitted.

The light guide rod 14a is provided so as to extend along the edge portion 13a. The LED 15a is connected to one end of the light guide bar 14a. The light guide bar 14a is configured to be able to emit light incident from one end by the LED 15a to the surface inside the case at the edge. Specifically, a reflection surface that reflects and scatters light that enters from one end and travels in the longitudinal direction in the direction toward the inner surface of the case 13 side of the edge portion 13a is provided inside the light guide rod 14a. . A plurality of such reflecting surfaces are provided in the longitudinal direction of the light guide rod 14a, and the light of the LED 15a can be uniformly guided to the entire surface on the case inner side of the edge portion 13a extending in a strip shape. Specifically, as shown in FIG. 6, a reflective surface 40a is formed by providing a V-shaped groove 40 on the surface of the light guide rod 14a. The V-shaped groove 40 is provided on the side surface opposite to the side surface that emits light in the light guide rod 14a. The V-shaped groove 40 extends in a direction perpendicular to the longitudinal direction of the light guide rod 14a, and the groove side surface on the light incident side forms the reflecting surface 40a. The reflective surface 40a is inclined at a predetermined angle with respect to the longitudinal direction, and is, for example, 45 °. However, from the viewpoint of obtaining desired light emission, it can be appropriately selected within a range of 0 to 90 °. Further, the depth, width, length, etc. of each groove may be the same or may vary. Further, the arrangement of the grooves can also be arbitrarily determined from the viewpoint of obtaining desired light emission.

  Light emission from the corner portions 12a and 12b and the edge portion 13c of the light emitting portion 11 is mainly performed by the light guide plate 16 and the LEDs 17a and 17b.

  The light guide plate 16 includes a first light incident surface (second end surface) 16a to which the LED 17a is connected, a second light incident surface (first end surface) 16b to which the LED 17b is connected, and a case inner side of the edge portion 13c. And a light exit surface (third end surface) 16c in contact with (facing) the surface. The light guide plate 16 has an overall shape of a substantially triangular plate-shaped body composed of these three sides.

  In addition, the corner between the first light incident surface 16a and the light exit surface 16c of the light guide plate 16 is in contact with (opposite) the case inner surface of the corner 12a of the light emitting unit 11 and the light exit corner (corner end surface). 16d. Further, the corner between the second light incident surface 16b and the light exit surface 16c is a light output corner (corner end surface) 16e that contacts (opposes) the case inner surface of the corner 12b of the light emitting portion 11. Yes.

  The angle of the second light incident surface 16b with respect to the light exit surface 16c and the connection position of the LED 17b are such that light incident from the LED 17b is emitted from the light exit angle portion 16d and the light exit surface 16c, and the intensity of the light is the light exit angle portion 16d. It is set appropriately so as to gradually become weaker as it approaches the outgoing angle portion 16e along the light exit surface 16c. Similarly, the angle of the first light incident surface 16a with respect to the light exit surface 16c and the connection position of the LED 17a are such that light incident from the LED 17a exits from the light exit angle portion 16e and the light exit surface 16c, and the intensity of the light is emitted. It is appropriately set so that it is the highest at the corner 16e and gradually becomes weaker as it approaches the outgoing corner 16d along the light exit surface 16c.

  That is, the light guide plate 16 is configured such that the light of the LED 17b is directly incident on the inner surface of the corner portion 12a, and the light of the LED 17a is incident on the inner surface of the corner portion 12b. Are configured to be directly incident. Moreover, it is comprised so that the light of both LED17a and LED17b may each inject into the surface inside the case of the edge part 13c.

<Excellent points of this embodiment>
According to the present embodiment, by combining indirect illumination with a light guide bar and direct illumination of an LED, each of the small electronic devices including corners or non-uniform shapes, which was difficult with each single method, is difficult. It becomes possible to emit light uniformly in the peripheral portion.

  That is, according to the present embodiment, the long side portions (edge portions 13a and 13b) in the light emitting portion can be caused to emit light uniformly by the light guide bar that emits side light. In addition, regarding the two corners (corner portions 12a and 12b) and the short side portion (side edge portion 13c), the light guide plates having sides facing the three portions and facing the two corner portions are opposed to each other. By entering the LED light from each of the two sides, the three parts can emit light uniformly.

Further, by making the two sides face each other, it is possible to overlap the irradiation regions of the respective LEDs on the side portions, so that it is possible to relatively easily design a uniform light distribution without unevenness.

(Example 2)
An electronic apparatus according to Embodiment 2 of the present invention will be described with reference to FIG. FIG. 2 is a schematic plan view illustrating configurations of a light emitting unit, a light guide, and a light source of an electronic apparatus according to Example 2 of the present invention. The overall configuration of the electronic apparatus according to the present embodiment is the same as that of the first embodiment (FIG. 5), and the description thereof is omitted.

  As shown in FIG. 2, the electronic apparatus according to the present embodiment includes light guide bars 24a, 24b, and 24c as first light guides, and an LED 25a as a first light source inside the light emitting unit 21 of the design case. 25b and 25c and LEDs 27a and 27b as second light sources are accommodated.

  Light emission of the edge portions 23a, 23b, and 23c of the light emitting unit 21 is mainly performed by the light guide bar 24a and the LED 25a, the light guide bar 24b and the LED 25b, and the light guide bar 24c and the LED 25c, respectively. The light emission at each edge portion is the same as that of the edge portion 13a (the light guide bar 14a and the LED 15a) in the first embodiment, and thus the description thereof is omitted.

  The light emission of the corner portions 22a and 22b of the light emitting portion 21 is mainly performed by causing the light of the LEDs 27a and 27b to directly enter the corner portions 22a and 22b, respectively. That is, in the present embodiment, the light source is directly connected to the light emitting section to emit light at the corners without using the light guide as in the first embodiment.

  The corners 22a and 22b are configured such that the thickness is maximized at the portion where the corner apex and the LEDs 27a and 27b face each other, and the entire end surfaces of the corners 22a and 22b are uniformly illuminated.

  According to the present embodiment, uniform light emission of the entire light emitting unit can be easily realized by appropriately setting the shape and thickness of the corners 22a and 22b, the connection positions of the LEDs 27a and 27b, and the like.

(Example 3)
An electronic apparatus according to Embodiment 3 of the present invention will be described with reference to FIGS. FIG. 3 is a schematic plan view illustrating configurations of a light emitting unit, a light guide, and a light source of an electronic apparatus according to Example 3 of the invention. FIG. 4 is a schematic plan view showing the configuration of the design case of the electronic device according to the third embodiment of the present invention.

  The electronic apparatus according to the present embodiment is characterized in that the configuration of the light guide and the light source is roughly configured to combine the first embodiment and the second embodiment.

  As shown in FIG. 4, the electronic device 1 ″ according to the present embodiment is provided with a light emitting unit 31 so as to go around the outer peripheral end surface (four edges) of the design case 10. The light emitting unit 31 has four edge portions 33a, 33b, 33c, and 33d. Further, in order to partially enlarge the light emitting region on the upper surface of the design case 10, the corner 32b and the corner 32c among the corners connecting the respective edge portions have an exposed width on the upper surface of the design case 10 other corners. It is configured larger than.

The electronic device 1 '' according to the present embodiment includes a light guide rod 34a1, 34a2, 34b1, 34b2, 34d as a first light guide and an LED 35a1 as a first light source inside the light emitting portion 31 of the design case 10. , 35a2, 35b1, 35b2, and 35d, a light guide plate 36 as a second light guide, and LEDs 37a, 37b, 38a, 38b, and 38c as second light sources are accommodated. The light guide bar 34a1 and the light guide plate 36, and the light guide bar 34b2 and the light guide bar 34d are integrally configured. The light guide bar 34a1 and the light guide plate 36 have light exit surfaces that extend in a substantially L shape.

  Light emission from the edge portion 33a is mainly performed by the light guide bars 34a1 and 34a2 and the LEDs 35a1 and 35a2. Further, light emission from the edge portion 33b is mainly performed by the light guide bars 34b1 and 34b2 and the LEDs 35b1 and 35b2. Further, light emission from the edge portion 33d is mainly performed by the light guide rod 34d and the LED 35d.

  Light emission from the edge portion 33c and the corner portion 32a is mainly performed by the light guide plate 36 and the LEDs 37a and 37b. About the angle with respect to the light exit surface of the light-guide plate 36 and the connection position of LED37a, 37b similarly to the light-guide plate 16 of the said Example 1, the edge part 33c from the corner | angular part 32a, and the edge part 33c and corner | angular part It is set as appropriate so that the region up to the boundary with 32b can emit light uniformly.

  The corner 32b emits light mainly by the LEDs 38a and 38b. The corner 32c emits light mainly by the LED 38c. The shape and thickness of the corners 32b and 32c, the connection positions of the LEDs 38a, 38b, and 38c, etc. are appropriately determined so that they uniformly illuminate not only the end surfaces of the corners 32b and 32c but also the light emitting region on the upper surface side of the design case 10. Is set.

  According to the present embodiment, by combining the three forms of the light guide rod, the light guide plate, and the direct incidence to the corner portion, there seems to be a portion having a large light emitting area all around the small electronic device. Even a complicated shape can be designed to emit light uniformly around the entire circumference.

(Other)
When the light emitting part of the design case 10 is a simple transparent member, the light may not be visually recognized depending on the angle, or conversely, the light may be strongly felt and appear as light unevenness. Therefore, lame or colored glass flakes may be dispersed in the case material as long as the transparency of the light emitting portion is not impaired, or the lame or colored glass flakes may be mixed with the transparent ink for printing. Accordingly, it is possible to emit light without unevenness by observing from all directions without damaging the transparent design.

DESCRIPTION OF SYMBOLS 1 Electronic device 10 Design case 11 Light emission part 12a, 12b Corner | angular part 13a, 13b, 13c Edge part 14a, 14b Light guide rod 15a, 15b LED
16 Light guide plate 17a, 17b LED

Claims (12)

A design case of a device main body having a light emitting portion on a first corner portion exposed to the outside and a first edge portion connected to the first corner portion;
Provided inside the design case along the first edge portion light emitting portion, which is the light emitting portion of the first edge portion, and can emit light incident from the end face in the longitudinal direction to the first edge portion light emitting portion. A rod-shaped first light guide configured as follows:
A first light source that makes light incident on the end face of the first light guide;
Opposite the first corner light emitting portion, which is the light emitting portion of the first corner portion, is provided in the design case, and is incident from the first end surface opposite to the side facing the first corner light emitting portion. A second light guide configured to be able to emit light to the first corner light emitter,
A second light source that makes light incident on the first end face of the second light guide;
An electronic device comprising: The design case includes a second side edge opposite to the first side edge connected to the first corner and a second side opposite to the first side edge connected to the second edge. A corner portion, and a light emitting portion at the second edge portion and the second corner portion,
The second light guide further opposes a second edge light emitting part which is a light emitting part of the second edge part, and a second corner light emitting part which is a light emitting part of the second corner part, The light incident from the second end face opposite to the side facing the second corner light emitting part is configured to be able to emit to the second corner light emitting part,
A third light source for making light incident on the second end face of the second light guide;
The light incident from both the first end surface and the second end surface of the second light guide is configured to be able to be emitted to the second edge light emitting unit. Electronic equipment. The design case further includes a third corner portion opposite to the second corner portion where the second edge portion continues, and a light emitting portion at the third corner portion,
A fourth light source is provided inside the design case so as to face the third corner light emitting portion which is the light emitting portion of the third corner portion, and further includes a fourth light source that directly enters light into the third corner light emitting portion. The electronic device according to claim 1.   The said 2nd light guide is a triangular plate shape which makes the 3rd end surface the 3rd end surface which opposes the said 1st end surface, the said 2nd end surface, and the said 2nd edge part light emission part, It is characterized by the above-mentioned. The electronic device according to 2 or 3. A design case of a device main body having a light emitting portion at a corner portion exposed to the outside and a peripheral edge portion connected to the corner portion;
A bar-shaped light source that is provided inside the design case along the edge portion light emitting portion that is the light emitting portion of the edge portion, and is configured to be able to emit light incident from the end face in the longitudinal direction to the edge portion light emitting portion. A light guide;
A first light source that makes light incident on the end face of the light guide;
A second light source that is provided inside the design case so as to face a corner light emitting portion that is a light emitting portion of the corner, and that directly enters light into the corner light emitting portion,
An electronic device comprising:   6. The light emitting unit according to claim 1, wherein lame or colored glass flakes are dispersed, or transparent ink mixed with the lame or glass flakes is printed. The electronic device as described in the paragraph. A first light guide having a plurality of reflection surfaces along the longitudinal direction, which is a rod-shaped light guide, and reflects light incident from one end toward one side surface extending in the longitudinal direction;
A substantially triangular plate-shaped light guide body, wherein one end face of three end faces facing each other and two corner end faces respectively connected to both ends of the end face are continuous light exit faces, and the other two A second light guide body into which light is incident independently from each of the end faces;
A light guide comprising:   The one side surface of the first light guide body is connected to one of the two corner end faces of the second light guide body to form a light exit surface that is bent substantially in an L shape. Item 8. The light guide according to Item 7. A rod-shaped light guide, further comprising a third light guide having a plurality of reflection surfaces along the longitudinal direction for reflecting light incident from one end toward one side surface extending in the longitudinal direction;
The one side surface of the third light guide body is connected to the other of the two corner end faces of the second light guide body, and forms a light exit surface that extends in a substantially U-shape. Item 9. The light guide according to Item 8. A design case including a light emitting portion including at least two edge portions and a corner portion formed by the two edge portions;
A light guide for guiding incident light along the edge of the design case;
A first light source that emits the light incident on the light guide;
A second light source that emits light toward the corner of the design case,
The light emitted from the first light source is emitted outside the design case from the edge of the light emitting unit,
The light emitted from the second light source is emitted from the inside of the design case to the outside of the corner portion.   The electronic device according to claim 10, wherein the second light source directly irradiates light toward the corner portion of the light transmission case.   12. The light emitting part of the light transmitting case is characterized in that lame or colored glass flakes are dispersed, or transparent ink mixed with the lame or glass flakes is printed. The electronic device as described in.

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