JP2010243676A - Electronic apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electronic apparatus which includes a light guide member formed to extend from a portion where light emitted from a light source enters, and in which light of the light source is effectively utilized. <P>SOLUTION: The light guide member includes an extending section 82 extending in the direction of the outer surface of the electronic apparatus. The extending section 82 includes a light emitting surface which is exposed from the outer surface of the electronic apparatus. Furthermore, the rear surface 82b which is the surface on the reverse side of the light emitting surface of the extending section 82 includes a tilted surface 82c. The tilted surface 82c is formed such that the tilted surface diagonally intersects the direction perpendicular to both of the direction wherein the light emitting surface and the rear surface 82b face each other and the direction wherein the extending section 82 extends. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an electronic apparatus having a light guide member arranged so that light from a light source such as an LED enters.

  Some conventional electronic devices turn on a light source such as an LED in accordance with its operating state. In such an electronic device, there is an electronic device in which a light source is disposed in a housing, and light from the light source is guided to the housing surface by a light guide member (for example, Patent Document 1). The light guide member is disposed so as to be exposed on the housing surface, and light incident on the light guide member travels while reflecting inside the light guide member, and is emitted from a surface exposed on the housing surface (hereinafter referred to as a light emitting surface). .

JP 2008-66884 A

  When it is desired to use a long light guide member formed to extend from the light incident part of the light source for the purpose of improving the appearance of the electronic device and improving the visibility of the indicator indicating the operating state of the electronic device. There is. The light incident on the light guide member proceeds in the extending direction of the light guide member while being reflected in the light guide member. For example, incident light travels while reflecting between a light emitting surface and a back surface that is a surface opposite to the light emitting surface. In this process, light that has passed through the light emitting surface is emitted to the outside, thereby improving the appearance of the electronic device and notifying the user of the operating state of the electronic device.

  However, light that does not reach the light emitting surface because it travels while reflecting a surface perpendicular to the light emitting surface and the back surface is transmitted through such a vertical surface and emitted to the outside, so that it is not visually recognized by the user, It does not contribute to the purpose of improving the appearance of the device or improving the visibility of the indicator. For this reason, if the amount of light emitted in this way is large, the utilization efficiency of the light source is poor, and measures such as increasing the number of light sources are required.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide an electronic device that has a light guide member formed so as to extend from a portion where light from a light source is incident and can effectively use the light from the light source. To provide equipment.

  In order to solve the above problems, an electronic apparatus according to the present invention includes a light source and a light guide member disposed so that light from the light source is incident thereon. The light guide member has an extending portion that extends in a direction along the outer surface of the electronic device, and the extending portion has a light emitting surface that is exposed on the outer surface of the electronic device. Moreover, the back surface of the extending portion that is the surface opposite to the light emitting surface includes an inclined surface that is inclined with respect to the light emitting surface. And the said inclined surface is formed so that it may cross | intersect with respect to the direction perpendicular | vertical with respect to both the direction where the said light emission surface and the said back surface face, and the extending | stretching direction of the said extending | stretching part.

  According to the present invention, the light traveling while reflecting between the surfaces perpendicular to the light emitting surface also strikes the inclined surface and is reflected to the light emitting surface side. As a result, the utilization efficiency of the light source can be improved.

  In the aspect of the invention, the inclined surface may be formed to extend along the extending direction of the extending portion, and the inclination of the inclined surface may change depending on the position in the extending direction. According to this aspect, the luminance can be changed according to the position of the light emitting surface. As a result, the appearance of the electronic device can be improved.

  In one embodiment of the present invention, an operation unit for operating the electronic device may be disposed in front of the light emitting surface. According to this aspect, the operation unit can be illuminated.

  In one embodiment of the present invention, the electronic device further includes a housing that forms an outer surface of the electronic device, and the housing is formed with an opening for inserting a portable storage medium, and the extending portion is formed in the opening. It may extend along. According to this aspect, the user can easily recognize the position of the opening for inserting the portable storage medium.

  In the aspect of the invention, the light guide member may include an incident portion on which light from the light source is incident, and the extending portion may be formed to extend from the incident portion. According to this aspect, light can be emitted from a wide range of the extending portion with a small number of light sources. In this aspect, the incident portion may be arranged so that the light from the light source is incident from a direction perpendicular to both the direction in which the light emitting surface and the back face face each other and the extending direction of the extending portion. .

  Moreover, in 1 aspect of this invention, the said extending | stretching part has a curved part curved along the outer surface of the said electronic device, and the said inclined surface may be formed in the said curved part. According to this aspect, the light emitted from the light emitting surface of the curved portion can be increased.

It is a perspective view of the electronic device which is an example of the embodiment of the present invention. It is a front view of the principal part of the said electronic device. It is a perspective view of the front part and the front part of a housing which the said electronic device has. It is a disassembled perspective view of the said front board. It is sectional drawing in the VV line shown in FIG. It is a rear view of the light guide member and front board which the said electronic device has, In the same figure, the light guide member and the front board are separated and shown up and down. FIG. 6 is an enlarged view of FIG. 5, in which the portion where the light guide member is shown is enlarged. It is a side view of the said light guide member. It is a perspective view which faces the said light guide member and a front board from diagonally backward. It is a top view of the edge part of the said light guide member. It is a perspective view of the said light guide member cut | disconnected in the middle of the extending | stretching part which the said light guide member has. It is a figure for demonstrating the reflection aspect of the light in a curved part. (A-1) is a side view of the light guide member, and (a-2) is a plan view of the light guide member. In these drawings, the extending portion of the light guide member is shown enlarged. Moreover, the same figure (b-1) and (b-2) show the light guide member used as a comparison object, the same figure (b-1) is the side view, and the same figure (b-2) It is a top view. It is a figure for demonstrating the reflection aspect of the light in the curved surface which a light guide member has.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of an electronic apparatus 1 that is an example of an embodiment of the present invention. FIG. 2 is a front view of the main part of the electronic device 1. FIG. 3 is a perspective view of the front board 10 and the front portion of the housing 7 of the electronic apparatus 1, and FIG. 4 is an exploded perspective view of the front board 10. 5 is a cross-sectional view taken along line VV shown in FIG.

  As shown in FIG. 1 or FIG. 2, the electronic device 1 has a housing 7 that constitutes an outer surface thereof. The housing 7 includes a substantially box-shaped lower housing 70 opened upward and a substantially box-shaped upper housing 71 opened downward. The upper housing 71 is disposed so as to cover the lower housing 70 from above, and is assembled to the lower housing 70.

  The upper housing 71 has the front board 10 at its front part. The upper housing 71 has a housing body 72 that is disposed so as to cover the lower housing 70 from above and closes the lower housing 70 from above. The housing main body 72 has an upper plate portion 72a facing the lower housing 70 in the vertical direction. Further, the housing main body 72 has a left front wall portion 72b and a right front wall portion 72c that are lowered from the edge of the upper plate portion 72a toward the lower housing 70 at the front portion thereof. The right front wall portion 72c extends rearward (Y1 direction) from the end of the left front wall portion 72b and is gently curved, and is located rearward of the left front wall portion 72b. The electronic device 1 is, for example, a game device or an audio / visual device, and a media insertion slot 72d for inserting a portable storage medium is formed in the right front wall portion 72c. The storage medium received by the media insertion slot 72d is a disk-shaped storage medium (for example, an optical disk), and the media insertion slot 72d has a long opening in the left-right direction. The right front wall 72c may be formed with a plurality of slots for receiving card-type storage media such as a memory card.

  The front board 10 is disposed in front of the right front wall 72c so as to face the lower housing 70 in the vertical direction, that is, substantially horizontally. And the front board 10 has closed the lower housing 70 which has the shape opened upwards with the housing main body 72 from upper direction. In this example, the right front wall portion 72 c of the housing main body 72 is located behind the left front wall portion 72 b, and an opening is provided between the right front wall portion 72 c and the front edge of the lower housing 70. The front board 10 closes this opening. The front board 10 has a substantially rectangular plate shape that is long in the left-right direction (X1-X2 direction). In particular, the front board 10 of this example has a plate shape in which one of four corners (left rear corner) is gently curved (see FIG. 3). The right front wall portion 72c is provided so as to stand on the edge of the front board 10 and is curved in accordance with the edge of the front board 10.

  The front board 10 is provided with a plurality (two in this example) of operation buttons (operation units) 3. As shown in FIG. 4, the front board 10 includes an outer panel 2 that forms the outer surface of the electronic device 1, and a base board 4 that is disposed on the rear surface side of the outer panel 2. Further, a circuit board 6 is disposed on the back side of the front board 10.

  The outer panel 2 is a thin plate-like member, and is formed of, for example, resin. As described above, the front board 10 has a substantially rectangular shape in which one corner is gently curved, and an edge (hereinafter, side edge 2c) on one side (in this example, the left side) in the left-right direction of the outer surface panel 2 is The rear panel 2 extends rearward while gently curving from its front end, and is connected to the rear edge 2 b of the outer panel 2.

  The operation button 3 is, for example, a power button for turning on / off the power of the electronic device 1 or an eject button for ejecting a storage medium such as an optical disk from the media insertion slot 72d. Two holes 2 a having a shape corresponding to the operation button 3 are formed in the outer panel 2. The operation buttons 3 are respectively fitted in the holes 2a (see FIG. 5).

  The base board 4 is a plate-like member having substantially the same shape as the outer panel 2. That is, the base board 4 has a substantially rectangular shape with one corner gently curved, and the left edge of the base board 4 extends backward while gently curving from its front end, and the rear edge of the base board 4 It is connected to. A support surface 41 on which a light guide member 8 to be described later is disposed is formed on the rear edge and the side edge of the base board 4.

  The outer panel 2 is attached to the surface of the base board 4. For example, the outer panel 2 is attached to the surface of the base board 4 with an adhesive. A hole 4a is formed in the base board 4, and the operation button 3 is disposed inside the hole 4a (see FIG. 5). Note that the base board 4 is also formed of a resin, like the outer panel 2.

  As shown in FIG. 4 or 5, the circuit board 6 is arranged in parallel with the base board 4 on the back side of the base board 4. On the surface of the circuit board 6, a contact member 61 that is pressed by the operation button 3 to be turned on / off is mounted. The contact member 61 is, for example, a tact switch. A connector 69 is attached to the back surface of the circuit board 6, and the contact member 61 is connected to another circuit board built in the electronic apparatus 1 via a wiring connected to the connector 69.

  The circuit board 6 is attached to the base board 4 by a plurality (three in this example) of screws 17. That is, the circuit board 6 has three holes 6a arranged in the left-right direction. On the other hand, screw holes are formed on the back surface of the base board 4, and each screw 17 inserted into the hole 6 a from below is fastened to the screw hole of the base board 4.

  Between the operation button 3 and the circuit board 6, a rubber 5 that pushes the operation button 3 toward the outer panel 2 is disposed. The contact member 61 is positioned on the back side of the rubber 5, and when the operation button 3 is pressed, the rubber 5 presses the contact member 61. In this example, a convex portion 51 is formed on the back surface of the rubber 5. The convex portion 51 is located above the contact member 61, and when the operation button 3 is pressed, the convex portion 51 pushes the contact member 61 downward. The rubber 5 has a substantially annular base portion 52 on the outer peripheral edge thereof. The base 52 is sandwiched between the base board 4 and the circuit board 6.

  As shown in FIG. 4, a plurality of LEDs (Light Emitting Diodes) 67, 66, and 68 are mounted on the circuit board 6 as light sources that are turned on according to the operating state of the electronic device 1. For example, the LEDs 66, 67, and 68 are controlled to be turned on when the electronic device 1 is powered on.

  The LED 67 is provided adjacent to the contact member 61 and is positioned below the operation button 3 and the rubber 5. Two holes 5 a are formed in the rubber 5. The operation button 3 is formed with a mark (not shown) indicating that the operation button 3 is a power button or a storage medium eject button. This mark is formed of a light-transmitting material that transmits light, and the light of the LED 67 enters the light-transmitting material of the operation button 3 through the hole 5a. As a result, the mark formed on the push button 3 is turned on.

  The LED 66 is mounted at a position behind the contact member 61. A hole 4c is formed in the base board 4, and a translucent member 19 that allows light to pass through the hole 4c is fitted therein. The translucent member 19 is located above the LED 66, and the light from the LED 66 enters the translucent member 19 and turns on the translucent member 19 (see FIG. 5). In this example, the outer surface panel 2 is constituted by a half mirror, and light transmitted through the translucent member 19 and the outer surface panel 2 is emitted to the outside of the electronic apparatus 1.

  The LED 68 is provided at the end of the circuit board 6. The front board 10 is provided with a light guide member 8 that is arranged so that the light of the LED 68 is incident and guides the light of the LED 68 to one side in the left-right direction (in this example, the right direction (X1 direction)). That is, the light incident on the light guide member 8 travels in the extending direction of the light guide member 8 while being reflected inside the light guide member 8. The light guide member 8 is formed of a light-transmitting material such as an acrylic resin (for example, polymethyl methacrylate resin (PMMA)) with adjusted light transmittance or turbidity, or a polycarbonate resin (PC). Has been.

  FIG. 6 is a rear view of the light guide member 8 and the front board 10, in which the light guide member 8 and the front board 10 are separated from each other in the vertical direction. FIG. 7 is an enlarged view of FIG. 5, in which the portion where the light guide member 8 is shown is enlarged. FIG. 8 is a side view of the light guide member 8. FIG. 9 is a perspective view of the light guide member 8 and the front board 10 facing obliquely from the rear. FIG. 10 is a plan view of an end portion of the light guide member 8, and FIG. 11 is a perspective view of the light guide member 8 cut in the middle of the extending portion 82 of the light guide member 8.

  As shown in FIG. 3 or FIG. 4, the light guide member 8 has an incident portion 81 into which the light of the LED 68 is incident. In this example, the incident portion 81 is located at the left front corner of the front board 10. The light guide member 8 is in the form of an elongated bar, and has an extending portion 82 extending from the incident portion 81 in a direction along the outer surface of the electronic device 1. In this example, the extending portion 82 includes the lower edge of the right front wall portion 72 c of the upper housing 71 that constitutes the outer surface of the electronic device 1, and the side edge 2 c and the rear edge of the outer panel 2 that also constitutes the outer surface of the electronic device 1. It extends in the left-right direction along 2b.

  The light guide member 8 is disposed on the edge of the base board 4. Specifically, as shown in FIG. 6 or FIG. 9, the base board 4 has a support surface 41 on the curved left edge and the rear edge. The support surface 41 protrudes from the rear edge 2b and the side edge 2c of the outer panel 2, and the light guide member 8 is disposed on the support surface 41 (see FIG. 7).

  As shown in FIG. 8, the LED 68 is disposed below the incident portion 81, and the incident portion 81 has an incident surface 81 a that faces the LED 68 on the lower surface thereof. A hole 41a is formed in the end 41b of the support surface 41 (see FIG. 9), and the incident surface 81a is disposed inside the hole 41a. The light from the LED 68 enters the incident surface 81a from below.

  Moreover, as shown in FIG. 9, the incident part 81 has the reflective surface 81b above the incident surface 81a. The reflecting surface 81b is inclined with respect to the incident surface 81a so that light incident from the incident surface 81a is reflected to the extending portion 82 side. In this example, the reflecting surface 81 b is inclined so as to become higher toward the extending portion 82 from the lower edge 81 c located near the tip of the light guide member 8. Further, the reflecting surface 81b is formed substantially flat.

  As shown in FIG. 2, the extending portion 82 extends substantially in the left-right direction. Further, as will be described later, the light traveling in the extending direction in the light guide member 8 is emitted forward from the light emitting surface 82 a of the extending portion 82. On the other hand, the light from the LED 68 enters the incident portion 81 from below. Therefore, the direction in which light enters the light guide member 8 is perpendicular to the extending direction of the light guide member 8 and the direction in which the light emitting surface 82a emits light.

  As shown in FIG. 3, the extending portion 82 is provided so as to surround the front board 10. That is, the extending portion 82 extends from the left front corner of the front board 10 where the incident portion 81 is located to the corner located on the diagonal line of the corner, that is, the right rear corner. In this example, the side edge 2c of the outer surface panel 2 and the lower edge of the right front wall portion 72c of the upper housing 71 are gently curved, and the extending portion 82 extends from the incident portion 81 to the side edge of the outer surface panel 2. It curves along 2c and the lower edge of the right front wall part 72c.

  That is, as shown in FIG. 4 or 10, the extending portion 82 has a curved portion 82 e that is located at the end of the extending portion 82 and extends obliquely rearward from the incident portion 81. The curved portion 82e is curved along the side edge 2c of the outer surface panel 2 and the lower edge of the right front wall portion 72c. Further, the extending portion 82 has a rectilinear portion 82f that extends substantially linearly from the curved portion 82e along the rear edge 2b of the outer surface panel 2. The light guide member 8 has a wall portion 83 standing along the side edge 2c of the outer panel 2 inside the incident portion 81. The wall portion 83 extends forward (Y2 direction) from the extending portion 82.

  As shown in FIG. 7, the extending portion 82 has a light emitting surface 82 a facing forward of the electronic device 1. The light emitting surface 82 a is provided from the end on the incident portion 81 side to the tip 82 k in the extending portion 82, and is exposed on the outer surface of the electronic device 1. That is, the height of the upper surface 82 g of the extending portion 82 is higher than the surface of the outer panel 2. Further, the right front wall portion 72 c of the housing 7 is disposed on the upper surface 82 g of the extending portion 82. Therefore, the extending portion 82 is exposed between the surface of the outer panel 2 and the lower edge of the right front wall portion 72c, and forms a boundary between the front board 10 and the right front wall portion 72c (see FIG. 2).

  As described above, the operation buttons 3 are provided on the base board 4 and the outer panel 2. This operation button 3 is located in front of the light emitting surface 82a. In addition, a media insertion slot 72d that is long in the left-right direction is formed in the right front wall 72c. The extending portion 82 extends below the media insertion opening 72d in a direction along the media insertion opening 72d (see FIG. 2).

  As shown in FIG. 7 or FIG. 11, the extending portion 82 has a light emitting surface 82a, a back surface 82b opposite to the light emitting surface 82a, an upper edge of the light emitting surface 82a, and an upper edge of the back surface 82b. And a lower surface 82h between the lower edge of the light emitting surface 82a and the lower edge of the back surface 82b. In this example, the upper surface 82g and the lower surface 82h are provided perpendicular to the light emitting surface 82a. The curved portion 82e described above is curved so that the back surface 82b is an outer surface of the curved portion 82e and the light emitting surface 82a is an inner surface (see FIG. 10).

  The back surface 82b includes an inclined surface 82c that faces the light emitting surface 82a while being inclined with respect to the light emitting surface 82a, and a facing surface 82d that faces the light emitting surface 82a. In this example, the facing surface 82d is parallel to the light emitting surface 82a. The inclined surface 82c has a direction in which the light emitting surface 82a and the back surface 82b face each other (a direction perpendicular to the light emitting surface 82a (a direction indicated by D1 in FIG. 7)) and an extending direction of the extending portion 82 (a direction indicated by D2 in FIG. 11). It is formed so as to cross obliquely with respect to the direction perpendicular to both (the direction indicated by D3 in Fig. 7) In this example, the inclined surface 82c is located at the upper part of the back surface 82b, and the facing surface 82d is The inclined surface 82c is inclined such that the upper edge 82i of the inclined surface 82c is closer to the light emitting surface 82a than the lower edge 82j. The upper part is formed so that the thickness of the extending part 82 (distance between the light emitting surface 82a and the inclined surface 82c) gradually decreases as it goes upward. Example slope 8 c extends substantially linearly from the upper edge 82i to the lower edge 82j, and the inclined surface 82c may be processed to increase the surface roughness. Becomes easy to scatter.

  As shown in FIG. 8 or FIG. 10, the inclined surface 82c is formed from the curved portion 82e provided near the incident portion 81 in the extending portion 82 to the straight portion 82f. As shown in FIG. 8, the light incident on the incident portion 81 from below is reflected by the reflecting surface 81b and proceeds to the extending portion 82 side. The light reflected by the reflecting surface 81b is reflected at an angle according to the incident angle with respect to the reflecting surface 81b or the position on the reflecting surface 81b to be reflected, and while reflecting between the upper surface 82g and the lower surface 82h of the extending portion 82, Proceed in the extending direction of the extending portion 82. Then, the light hits the inclined surface 82c, is reflected toward the light emitting surface 82a, and the light transmitted through the light emitting surface 82a is emitted to the front of the electronic device 1.

  FIG. 12 is a diagram for explaining a light reflection mode on the inclined surface 82c of the curved portion 82e. FIG. 3A is a side view of the light guide member 8. FIG. 2A-2 is a plan view of the light guide member 8. In FIG. 2A-2, the curved portion 82e is shown enlarged. In these drawings, the inclined surface 82c is shaded. FIGS. (B-1) and (b-2) show a light guide member 850 to be compared, and FIG. (B-1) is a side view of the light guide member 850. FIG. -2) is a plan view of the light guide member 850. Although the light guide member 850 has a curved portion 852e, the curved portion 852e has no inclined surface. Moreover, the line La shown to the same figure (a-1) and (a-2) and the line Lb shown to the same figure (b-1) and (b-2) injected into the light guide members 8 and 850 from LED68. It is a line which shows the example of the advancing direction of light, and the light shown by these lines injects with the same angle with respect to the reflective surfaces 81b and 850b.

  As indicated by the line Lb in FIGS. 2B-1 and 2B-2, the light guide member 850 also enters the incident portion 851 from below and is reflected by the reflection surface 851b, similarly to the light guide member 8. The transmitted light travels in the curved portion 852e while reflecting between the upper surface 852g and the lower surface 852h of the extending portion 852. The light traveling in the curved portion 852e is reflected toward the light emitting surface 852a at the position Pb on the back surface 852b of the curved portion 852e, and the light transmitted through the light emitting surface 852a is emitted from the light emitting surface 852a. On the other hand, in the light guide member 8, as shown by the line La in FIGS. (A-1) and (a-2), the light is reflected by the reflecting surface 81b and is reflected between the upper surface 82g and the lower surface 82h of the extending portion 82. The traveling light is reflected toward the light emitting surface 82a at the position Pa on the inclined surface 82c. As a result, the position on the light emitting surface 82a to which the light indicated by the line La reaches is closer to the incident portion 81 than the position on the light emitting surface 852a to which the light indicated by the line Lb reaches. As described above, in the curved portion 82e of the light guide member 8, the inclined surface 82c is formed, so that more light reaches the position on the light emitting surface 82a near the incident portion 81, and the light emitting surface 82a in the curved portion 82e. The amount of light emitted from can be increased.

  In addition, the inclined surface 82c is also formed in a rectilinear portion 82f extending from the curved portion 82e. As shown in FIG. 7, the light reflected between the upper surface 82g and the lower surface 82h in the rectilinear portion 82f also strikes the inclined surface 82c and is reflected toward the light emitting surface 82a.

  Thus, when the light traveling in the extending direction of the extending portion 82 hits the inclined surface 82c, the light is reflected to the light emitting surface 82a side. And the light which permeate | transmitted the light emission surface 82a is discharge | released ahead. As shown in FIG. 11, the inclined surface 82 c that reflects light toward the light emitting surface 82 a is formed so as to extend in a direction along the extending direction of the extending portion 82. In particular, in this example, the inclined surface 82c is formed from one end of the extending portion 82 to the other end. Therefore, light is emitted from the entire light emitting surface 82a. The light emitting surface 82a is processed to increase the surface roughness, and the reflectance at the light emitting surface 82a is reduced. Thereby, the light reflected from the other surface such as the inclined surface 82c and reaching the light emitting surface 82a is easily transmitted through the light emitting surface 82a. In particular, in this example, a process for increasing the surface roughness is performed over the entire surface of the light emitting surface 82a, that is, from the end of the light emitting surface 82a on the incident portion 81 side to the tip 82k.

  The inclination degree θ of the inclined surface 82c (the angle of the inclined surface 82c with respect to the D3 direction (see FIG. 7)) changes according to the position of the inclined surface 82c in the extending direction. In this example, the inclination θ of the inclined surface 82c decreases as it approaches the tip 82k of the extending portion 82. In particular, at the tip 82k, the inclined surface 82c is substantially parallel to the light emitting surface 82a. In this way, the luminance θ of the light emitting surface 82a can be adjusted according to the position by changing the degree of inclination θ of the inclined surface 82c according to the position of the inclined surface 82c in the extending direction. In this example, the brightness of the light emitting surface 82a can be lowered as the light guide member 8 approaches the tip 82k. Thereby, the external appearance of the electronic device 1 can be improved. As shown in FIG. 11, the width W2 of the facing surface 82d gradually decreases as it approaches the tip 82k, while the width W1 of the inclined surface 82c is maintained in the extending direction of the extending portion 82.

  The extending portion 82 is gradually thinner as it approaches the tip 82k. In this example, as shown in FIG. 6, the upper surface 82g of the extending portion 82 extends in the horizontal direction (the direction parallel to the outer panel 2), while the lower surface 82h extends toward the tip 82k and is inclined upward. . Therefore, the height of the extending portion 82 (the distance between the upper surface 82g and the lower surface 82h) gradually decreases as the tip 82k is approached.

  In addition, the support surface 41 on which the light guide member 8 is placed is also inclined according to the lower surface 82h. That is, the position of the support surface 41 gradually increases as it approaches the end. Therefore, the width W3 (see FIG. 7) of the portion exposed from the outer surface panel 2 of the light emitting surface 82a is maintained in the extending direction of the extending portion 82.

  As shown in FIG. 10, the back surface 82b has a curved surface 82L that is curved so as to be recessed toward the light emitting surface 82a, in addition to the inclined surface 82c, at a position near the incident portion 81 in the curved portion 82e. In this example, the curved surface 82L is located at the end of the curved portion 82e near the incident portion 81, and the curved surface 82L extends from the incident portion 81. In this example, the curved surface 82L is curved so as to be recessed toward the light emitting surface 82a in the plan view of the light guide member 8. That is, the curved surface 82L extends from the incident portion 81 in the extending direction of the extending portion 82 and approaches the light emitting surface 82a, and the second portion extends in the extending direction of the extending portion 82 and separates from the light emitting surface 82a. R2.

  In this example, the curved portion 82e as a whole is formed so as to be gradually thinner as it is away from the incident portion 81, that is, its thickness (distance between the light emitting surface 82a and the curved surface 82L) W4 is reduced. ing. Then, the curved surface 82L increases the tendency that the thickness W4 of the curved portion 82e becomes smaller in the first portion R1, and the curved surface 82L reduces the tendency that the thickness W4 becomes smaller in the second portion R2. ing. Therefore, in the first portion R1, the thickness W4 of the curved portion 82e decreases as the distance from the incident portion 81 increases. Further, in the second portion R2, the thickness W4 of the curved portion 82e increases as the distance from the incident portion 81 increases. In the portion beyond the second portion R2 (the portion closer to the tip 82k than the second portion R2), the thickness W4 of the curved portion 82e gradually decreases as the distance from the incident portion 81 increases.

  The curved portion 82e is curved so that the back surface 82b is an outer surface of the curved portion 82e and the light emitting surface 82a is an inner surface. In this example, the curved surface 82L is provided on the back surface 82b of the curved portion 82e, and the center O1 of the circle whose circumference is the light emitting surface 82a in the curved portion 82e, and the center O2 of the circle whose circumference is the curved surface 82L, Is located on the opposite side of the light guide member 8.

  The light reflected on the extending portion 82 side at the incident portion 81 and traveling through the curved portion 82e strikes the curved surface 82L, is reflected toward the light emitting surface 82a of the curved portion 82e, and the light transmitted through the light emitting surface 82a is exposed to the outside. Released.

  FIG. 13 is a diagram for explaining a light reflection mode on the curved surface 82L. FIG. 4A shows the light guide member 8 described so far, and FIG. 4B shows a light guide member 800 to be compared. For the sake of illustration, FIG. 10A shows a curved surface that is curved larger than the curved surface 82L shown in FIG.

  The light guide member 800 is provided with a back surface 820b on which the curved surface 82L as described above is not formed. The light guide member 800 is also provided with an incident portion 810 having a reflective surface 810b formed, as with the light guide member 8. In the light guide member 800, the light reflected by the reflecting surface 810b strikes the back surface 820b and is reflected to the light emitting surface 820a side. Similarly, in the light guide member 8, the light reflected by the reflecting surface 81b strikes the curved surface 82L and is reflected to the light emitting surface 82a side. Here, since the curved surface 82L is curved so as to be recessed toward the light emitting surface 82a, the incident angle of light with respect to the curved surface 82L is larger than the incident angle of light with respect to the back surface 820b of the light guide member 800. Therefore, in the light guide member 8, light is reflected toward a position closer to the end of the light emitting surface 82 a (position closer to the incident portion 81) than the light guide member 800. As a result, in the light guide member 8, the luminance at a position near the end of the light emitting surface 82 a is increased as compared with the light guide member 800.

  As described above, in the electronic device 1, the back surface 82b of the extending portion 82 that is the surface opposite to the light emitting surface 82a includes the inclined surface 82c that is inclined with respect to the light emitting surface 82a. The inclined surface 82c is formed so as to obliquely intersect a direction D3 perpendicular to both the direction D1 in which the light emitting surface 82a and the back surface 82b face each other and the extending direction D2 of the extending portion 82.

  According to the electronic apparatus 1 described above, the light traveling while reflecting between the planes perpendicular to the light emitting surface 82a (the upper surface 82g and the lower surface 82h in the above description) also strikes the inclined surface 82c and is on the light emitting surface 82a side. Reflect on. As a result, the utilization efficiency of the light emitted from the LED 68 can be improved.

  In addition, this invention is not restricted to the electronic device 1 demonstrated above, A various change is possible.

  For example, in the above description, the inclined surface 82 c is formed from one end to the other end of the extending portion 82. However, the inclined surface 82 c may be formed only on a part of the extending portion 82. For example, the inclined surface 82c may be formed at a position where more luminance is required in the extending portion 82.

  In the above description, the inclined surface 82c extends linearly from the upper edge 82i to the lower edge 82j. However, the inclined surface 82c may be curved. That is, the inclined surface 82c may extend downward and reach the lower edge 82j while curving from the upper edge 82i.

DESCRIPTION OF SYMBOLS 1 Electronic device, 2 External panel, 2b Rear edge, 2c Side edge, 3 Operation button (operation part), 4 Base board, 5 Rubber, 6 Circuit board, 7 Housing, 8 Light guide member, 10 Front board, 19 Light transmission Member, 41 Support surface, 61 Contact member, 66, 67, 68 LED (light source) 69 Connector, 70 Lower housing, 71 Upper housing, 72 Housing body, 72a Upper plate part, 72b Left front wall part, 72c Right front wall part , 72d Media insertion port, 81 Incident part, 82 Stretched part, 82L Curved surface, 82a Light emitting surface, 82b Back surface, 82c Inclined surface, 82d Face-to-face, 82e Curved part, 82f Straight part, 82g Upper surface, 82h Lower surface, 82i Upper edge , 82j lower edge, 82k tip, 83 wall, D1 direction in which the light emitting surface and the back face each other, D2 extending direction of the extending part, D3 perpendicular to both D1 and D2 Direction.

Claims (7)

An electronic device comprising a light source and a light guide member arranged so that light from the light source enters,
The light guide member has an extending portion extending in a direction along the outer surface of the electronic device,
The extending portion has a light emitting surface exposed on the outer surface of the electronic device,
The back surface of the extending portion, which is the surface opposite to the light emitting surface, obliquely intersects the direction perpendicular to both the direction in which the light emitting surface and the back surface face each other and the extending direction of the extending portion. Including the formed inclined surface,
An electronic device characterized by that. The electronic device according to claim 1,
The inclined surface is formed so as to extend along the extending direction of the extending portion, and the inclination of the inclined surface changes according to the position in the extending direction.
An electronic device characterized by that. The electronic device according to claim 1,
An operation unit for operating the electronic device is disposed in front of the light emitting surface.
An electronic device characterized by that. The electronic device according to claim 1 or 3,
A housing that constitutes an outer surface of the electronic device;
The housing is formed with an opening for inserting a portable storage medium,
The extending portion extends along the opening;
An electronic device characterized by that. The electronic device according to claim 1,
The light guide member has an incident portion on which light from the light source is incident,
The extending portion is formed to extend from the incident portion,
An electronic device characterized by that. The electronic device according to claim 5,
The incident portion is disposed so that light from the light source is incident from a direction perpendicular to both the direction in which the light emitting surface and the back face face each other and the extending direction of the extending portion.
An electronic device characterized by that. The electronic device according to claim 1,
The extending portion has a curved portion curved along the outer surface of the electronic device,
The inclined surface is formed in the curved portion,
An electronic device characterized by that.

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