WO2010113535A1 - Appareil électronique - Google Patents

Appareil électronique Download PDF

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Publication number
WO2010113535A1
WO2010113535A1 PCT/JP2010/051101 JP2010051101W WO2010113535A1 WO 2010113535 A1 WO2010113535 A1 WO 2010113535A1 JP 2010051101 W JP2010051101 W JP 2010051101W WO 2010113535 A1 WO2010113535 A1 WO 2010113535A1
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WO
WIPO (PCT)
Prior art keywords
electronic device
light
light emitting
curved
guide member
Prior art date
Application number
PCT/JP2010/051101
Other languages
English (en)
Japanese (ja)
Inventor
貴行 古坊
Original Assignee
株式会社ソニー・コンピュータエンタテインメント
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2009090567A external-priority patent/JP5101556B2/ja
Priority claimed from JP2009090566A external-priority patent/JP5101555B2/ja
Application filed by 株式会社ソニー・コンピュータエンタテインメント filed Critical 株式会社ソニー・コンピュータエンタテインメント
Publication of WO2010113535A1 publication Critical patent/WO2010113535A1/fr

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/0045—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide
    • G02B6/0046—Tapered light guide, e.g. wedge-shaped light guide
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0066—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form characterised by the light source being coupled to the light guide
    • G02B6/0068—Arrangements of plural sources, e.g. multi-colour light sources
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • H01H13/83—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard characterised by legends, e.g. Braille, liquid crystal displays, light emitting or optical elements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
    • G02B6/0031—Reflecting element, sheet or layer
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2219/00—Legends
    • H01H2219/054—Optical elements
    • H01H2219/062—Light conductor

Definitions

  • the present invention relates to an electronic device having a light guide member, such as an LED, arranged to receive light from a light source.
  • a light guide member such as an LED
  • Some conventional electronic devices turn on a light source such as an LED according to the operating state.
  • a light source such as an LED
  • the light guide member guides the light of the light source to the surface of the housing (for example, JP-A-2008-66884).
  • the light guide member is arranged to be exposed at the housing surface. The light incident on the light guide member travels while being reflected in the light guide member, and is emitted from the surface (hereinafter, light emitting surface) exposed on the housing surface.
  • a long light guide member formed to extend from the light incident portion 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
  • Light incident on such a light guide member travels in the extension direction of the light guide member while being reflected in the light guide member.
  • the incident light travels while reflecting between the light emitting surface and the back surface which is the surface opposite to the light emitting surface. Then, the light transmitted through the light emitting surface is emitted to the outside in the process to improve the appearance of the electronic device or to notify the user of the operation state of the electronic device.
  • the amount of light reflected from the back surface or other surface toward the light emitting surface is not sufficient, and the luminance of the emitted light is sufficient. There are cases where no position occurs on the light emitting surface.
  • the 1st objective has a light guide member formed so that it might be extended from the part into which the light of a light source injects, and the light of a light source is effectively made. It is about providing the electronic device which can be used.
  • a second object of the present invention is to provide an electronic device having a light guide member capable of suppressing the occurrence of a position with insufficient luminance on the light emitting surface.
  • an electronic device includes a light source, and a light guide member disposed so that the light of the light source is incident.
  • the light guide member has an extending portion extending in a direction along the outer surface of the electronic device, and the extending portion has a light emitting surface exposed on the outer surface of the electronic device.
  • the back surface of the said extending part which is a surface on the opposite side to the said light emission surface contains the inclined surface inclined with respect to the said light emission surface.
  • the inclined surface is formed so as to obliquely intersect a 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.
  • light traveling while reflecting between the surfaces perpendicular to the light emitting surface can also be reflected to the light emitting surface side by hitting the inclined surface.
  • the utilization efficiency of the light source can be improved.
  • the inclined surface may be formed to extend along the extending direction of the extending portion, and the inclination degree of the inclined surface may be changed according to the position in the extending direction.
  • the brightness can be changed according to the position of the light emitting surface. As a result, the appearance of the electronic device can be improved.
  • 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.
  • the electronic device further comprises a housing forming an outer surface of the electronic device, wherein the housing is formed with an opening for inserting a portable storage medium, and the extension 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.
  • the light guide member may have an incident portion on which the light of the light source is incident, and the extending portion may be formed to extend from the incident portion. According to this aspect, it is possible to emit light from a wide range of the extending portion with a small number of light sources. Further, in this aspect, the incident portion may be disposed so that the light of the light source is incident from a 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. .
  • the extension portion may have a curved portion curved along an outer surface of the electronic device, and the inclined surface may be formed in the curved portion. According to this aspect, it is possible to increase the light emitted from the light emitting surface of the curved portion.
  • the electronic device which concerns on this invention is equipped with a light source and the light guide member arrange
  • the light guide member has an extending portion extending in a direction along the outer surface of the electronic device, and the extending portion includes a light emitting surface exposed on the outer surface of the electronic device and a surface opposite to the light emitting surface And the back side.
  • the back surface has a curved surface that curves so as to be recessed toward the light emitting surface side.
  • the light traveling in the extending direction in the light guide member easily strikes the curved surface provided on the back surface, and the brightness on the light emitting surface arrives at the light reflected on the curved surface. It can be increased. Therefore, by appropriately adjusting the position of the curved surface, it is possible to suppress the occurrence of a position where the luminance is insufficient.
  • the extension portion may have a curved portion curved at a part thereof, and the curved surface of the back surface may be provided at the curved portion. According to this aspect, the luminance of the light emitting surface of the curved portion can be increased.
  • the light guide member has an incident portion on which the light of the light source is incident, the extension portion is provided to extend from the incident portion, and the curved surface is incident on the curved portion. It may be formed in the vicinity of a part. By doing this, it is possible to further increase the brightness of the position closer to the incident portion of the bending portion.
  • the curved portion may be curved such that the back surface is an outer surface of the curved portion. This can increase the amount of light reflected to the light emitting surface which is the inner surface of the curved portion.
  • FIG. 5 is a cross-sectional view taken along the line V-V shown in FIG. 3; It is a rear view of the light guide member and front board which the said electronic device has, and the light guide member and front board are isolate
  • FIG. 1 is a side view of the above-mentioned light guide member. It is a perspective view which faces the said light guide member and front board from diagonally backward. It is a top view of the end of the above-mentioned light guide member. It is the perspective view of the said light guide member cut
  • the figure (a-1) is a side view of the light guide member, and the figure (a-2) is a plan view of the light guide member. In these figures, the extension part which the said light guide member has is expanded and shown.
  • FIGS. (B-1) and (b-2) show light guide members to be compared, FIG. (B-1) is a side view thereof, and FIG. (B-2) is a side view thereof. 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.
  • FIG. 1 is a perspective view of an electronic device 1 which 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 device 1, and
  • FIG. 4 is an exploded perspective view of the front board 10.
  • FIG. 5 is a cross-sectional view taken along the line V-V shown in FIG.
  • the electronic device 1 has a housing 7 that constitutes the outer surface thereof.
  • the housing 7 has 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 to cover the lower housing 70 from above, and is assembled to the lower housing 70.
  • the upper housing 71 has a front board 10 at its front. Further, the upper housing 71 is disposed so as to cover the lower housing 70 from above, and has a housing body 72 that closes the lower housing 70 from above.
  • the housing body 72 has an upper plate portion 72a facing the lower housing 70 in the vertical direction. Further, the housing body 72 has, at its front, a left front wall 72b and a right front wall 72c which are lowered toward the lower housing 70 from the edge of the upper plate 72a.
  • the right front wall 72c extends rearward (in the Y1 direction) from the right end of the left front wall 72b and curves gently and is positioned rearward of the left front wall 72b.
  • the electronic device 1 is, for example, a game device or an audio-visual device.
  • a media insertion port 72d for inserting a portable storage medium is formed in the right front wall portion 72c.
  • the storage medium received by the media insertion port 72d is a disk-shaped storage medium (for example, an optical disk). Therefore, the media insertion port 72d is a long opening in the left-right direction.
  • the right front wall 72 c may be formed with a plurality of slots for receiving a card-type storage medium such as a memory card.
  • the front board 10 is located in front of the right front wall portion 72c, and is disposed to face the lower housing 70 in the vertical direction, that is, generally horizontally.
  • the right front wall 72c of the housing body 72 is located rearward of the left front wall 72b, an opening is provided between the right front wall 72c and the front edge of the lower housing 70. There is.
  • 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).
  • the front board 10 in this example is in the form of a plate in which one of the four corners (left rear corner) is gently curved (see FIG. 3).
  • the right front wall 72 c is provided to stand on the edge of the front board 10 and is curved in conformity with the edge of the front board 10.
  • the front board 10 is provided with a plurality of (two in this example) operation buttons (operation units in the claims) 3. Further, as shown in FIG. 4, the front board 10 has an outer surface panel 2 that constitutes the outer surface of the electronic device 1, and a base board 4 that is disposed on the back surface (lower surface) side of the outer surface panel 2. Furthermore, the circuit board 6 is disposed on the back surface (lower surface) side of the front board 10.
  • the outer surface panel 2 is a thin plate-like member, and is formed of, for example, a resin. As described above, the front board 10 is substantially rectangular with one corner gently curved. The edge (hereinafter, side edge 2c) on one side (left side in this example) of the outer surface panel 2 extends rearward while curving gently from its front end and is connected to the rear edge 2b of the outer surface panel 2.
  • the operation button 3 is, for example, a power button for turning on / off the power of the electronic device 1 or a removal button for removing a storage medium such as an optical disk from the media insertion port 72 d.
  • the outer surface panel 2 is formed with two holes 2 a having a shape corresponding to the operation button 3.
  • 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 is a substantially rectangular shape in which one corner is gently curved. The left side edge of the baseboard 4 extends rearward while being gently curved from the front end thereof and is connected to the rear edge of the baseboard 4. At the rear edge and the side edge of the base board 4, a support surface 41 on which a light guide member 8 described later is disposed is formed.
  • the outer panel 2 is attached to the surface of the base board 4.
  • the outer panel 2 is attached to the surface of the base board 4 by 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).
  • the base board 4 is also formed of resin as in the case of the outer surface panel 2.
  • the circuit board 6 is disposed in parallel to the baseboard 4 on the back side of the baseboard 4.
  • a contact member 61 which 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.
  • the contact member 61 is connected to another circuit board built in the electronic device 1 through a wire connected to the connector 69.
  • the circuit board 6 is attached to the base board 4 by a plurality of (three in this example) screws 17. That is, the circuit board 6 is formed with three holes 6 a aligned in the left-right direction. On the other hand, screw holes are formed on the back surface of the base board 4. The screws 17 inserted into the holes 6 a from below are fixed to the screw holes of the base board 4.
  • a rubber 5 is disposed between the operation button 3 and the circuit board 6 to push the operation button 3 toward the outer panel 2.
  • the contact member 61 When the contact member 61 is positioned on the back surface (lower surface) side of the rubber 5 and the operation button 3 is pressed, the rubber 5 pushes the contact member 61.
  • 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. Therefore, 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 52 at its outer peripheral edge. The base 52 is sandwiched between the base board 4 and the circuit board 6.
  • a plurality of LEDs (Light Emitting Diodes) 67, 66, 68 are mounted on the circuit board 6 as light sources to be lit according to the operating state of the electronic device 1.
  • the LEDs 66, 67, 68 are controlled to light up, for example, when the power of the electronic device 1 is in the on state.
  • the LED 67 is provided adjacent to the contact member 61 and located 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 translucent material that transmits light. Therefore, the light of LED67 injects into the translucent material of the operation button 3 through the hole 5a. As a result, the mark formed on the push button 3 lights up.
  • 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 light transmitting member 19 for transmitting light is fitted in the hole 4c.
  • the light transmitting member 19 is located above the LED 66. Therefore, the light of LED66 injects into the light transmission member 19, and makes the light transmission member 19 light (refer FIG. 5).
  • the outer surface panel 2 is configured by a half mirror, and light transmitted through the light transmitting member 19 and the outer surface panel 2 is emitted to the outside of the electronic device 1.
  • the LED (light source in claims) 68 is provided at the end of the circuit board 6.
  • the front board 10 is disposed so that the light of the LED 68 is incident, and is provided with a light guide member 8 for guiding the light of the LED 68 to one side in the left-right direction (in this example, rightward (X1 direction)). That is, light incident on the light guide member 8 travels in the extending direction of the light guide member 8 while being reflected in the light guide member 8.
  • the light guide member 8 is formed of, for example, a light transmitting material such as an acrylic resin (for example, polymethyl methacrylate resin (PMMA)) or a polycarbonate resin (PC) whose transmittance and turbidity of light are adjusted. It is done.
  • FIG. 6 is a rear view of the light guide member 8 and the front board 10. In the figure, the light guide member 8 and the front board 10 are shown separated vertically.
  • FIG. 7 is an enlarged view of FIG. 5, in which the part 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 obliquely from the rear.
  • FIG. 10 is a plan view of an end portion of the light guide member 8
  • FIG. 11 is a perspective view of the light guide member 8 cut in the middle of the extension portion 82 of the light guide member 8.
  • the light guide member 8 has an incident portion 81 to which the light of the LED 68 is incident at its end.
  • the incident part 81 is located at the front left corner of the front board 10.
  • the light guide member 8 since the light guide member 8 is in the shape of an elongated bar, the light guide member 8 includes the extending portion 82 extending in the direction along the outer surface of the electronic device 1 from the incident portion 81.
  • the extension portion 82 is the lower edge of the right front wall 72c of the upper housing 71 constituting the outer surface of the electronic device 1, and the side edge 2c and the trailing edge of the outer panel 2 likewise constituting the outer surface of the electronic device 1. It extends in the left-right direction along 2b.
  • the light guiding member 8 is disposed on the edge of the base board 4.
  • the baseboard 4 has a support surface 41 at the curved left edge and the rear edge.
  • the support surface 41 protrudes from the rear edge 2 b and the side edge 2 c of the outer panel 2.
  • the light guide member 8 is disposed on the support surface 41 (see FIG. 7).
  • the LED 68 is disposed below the incident portion 81, and the incident portion 81 has an incident surface 81 a facing the LED 68 on the lower surface thereof.
  • a hole 41a is formed at the end 41b of the support surface 41 (see FIG. 9), and the incident surface 81a is disposed inside the hole 41a. The light of the LED 68 is incident on the incident surface 81 a from below.
  • the incident part 81 has the reflective surface 81b above the incident surface 81a.
  • the reflection surface 81 b is inclined with respect to the light incident surface 81 a so that the light incident from the light incident surface 81 a is reflected toward the extending portion 82.
  • the reflective surface 81 b is inclined so as to be higher from the lower edge 81 c located closer to the tip of the light guide member 8 toward the extending portion 82.
  • the reflecting surface 81 b is formed substantially flat.
  • the extending portion 82 extends substantially in the left-right direction. Further, as described later, light traveling in the light guide member 8 in the extending direction is emitted forward from the light emitting surface 82 a of the extending portion 82. On the other hand, the light of the LED 68 is incident on the incident portion 81 from below. Therefore, the direction in which light is incident on 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 82 a emits light.
  • the extending portion 82 is provided to surround the front board 10. That is, the extending portion 82 extends from the front left corner of the front board 10 where the incident portion 81 is located to the corner located on the diagonal of the target corner, that is, the rear right corner. Further, in this example, the side edge 2c of the outer panel 2 and the lower edge of the right front wall 72c of the upper housing 71 are gently curved. The extending portion 82 is curved along the side edge 2 c of the outer panel 2 and the lower edge of the right front wall 72 c from the incident portion 81.
  • the extending portion 82 has a curved portion 82e located at the end of the extending portion 82 and extending obliquely rearward from the incident portion 81.
  • the curved portion 82e is curved along the side edge 2c of the outer panel 2 and the lower edge of the right front wall 72c.
  • the extending portion 82 has a rectilinear portion 82 f extending substantially linearly from the curved portion 82 e along the rear edge 2 b of the outer surface panel 2.
  • the light guide member 8 has a wall 83 standing along the side edge 2 c of the outer surface panel 2 inside the incident portion 81.
  • the wall 83 extends forward (in the Y2 direction) from the extending portion 82.
  • the extending portion 82 has a light emitting surface 82 a facing the front 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.
  • the light emitting surface 82 a 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 surface panel 2.
  • the right front wall 72 c of the housing 7 is disposed on the upper surface 82 g of the extension 82. Therefore, the extension portion 82 is exposed between the surface of the outer surface panel 2 and the lower edge of the right front wall 72c to form a boundary between the front board 10 and the right front wall 72c (see FIG. 2).
  • the operation buttons 3 are provided on the base board 4 and the outer panel 2.
  • the operation button 3 is located in front of the light emitting surface 82a.
  • a media insertion port 72d which is long in the left-right direction is formed in the right front wall portion 72c.
  • the extending portion 82 extends in the direction along the media insertion port 72d below the media insertion port 72d (see FIG. 2).
  • the extending portion 82 has 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.
  • the upper surface 82g and the lower surface 82h are formed perpendicularly to the light emitting surface 82a.
  • the curved portion 82e described above is curved such that the back surface 82b is the outer surface of the curved portion 82e and the light emitting surface 82a is the inner surface (see FIG. 10).
  • the back surface 82b includes an inclined surface 82c facing the light emitting surface 82a in a state of being inclined with respect to the light emitting surface 82a, and a front facing 82d facing the light emitting surface 82a.
  • the facing surface 82d is parallel to the light emitting surface 82a.
  • the inclined surface 82c is in the direction in which the light emitting surface 82a and the back surface 82b face each other (the direction perpendicular to the light emitting surface 82a (the direction indicated by D1 in FIG. 7) and the extending direction of the extending portion 82 (the direction indicated by D2 in FIG. 11).
  • the inclined surface 82c is located at the top of the back surface 82b, and the front facing 82d is the back surface
  • the inclined surface 82c is inclined so that the upper edge 82i of the inclined surface 82c is closer to the light emitting surface 82a than the lower edge 82j, that is, the upper portion of the extension 82 is located.
  • the sloped surface 82c may be processed to increase the surface roughness, whereby light on the sloped surface 82c is It becomes easy to scatter.
  • the inclined surface 82c is formed with a curved portion 82e provided at a position closer to the incident portion 81 in the extending portion 82 and a rectilinear portion 82f.
  • light incident from below on the incident portion 81 is reflected by the reflective surface 81 b and travels toward the extending portion 82.
  • the light reflected by the reflective surface 81 b is reflected at an angle of incidence with respect to the reflective surface 81 b or an angle according to the position on the reflective surface 81 b to which the light reaches.
  • the light travels in the extending direction of the extending portion 82 while reflecting between the upper surface 82 g and the lower surface 82 h of the extending portion 82.
  • the light is reflected toward the light emitting surface 82 a by hitting the inclined surface 82 c, and the light transmitted through the light emitting surface 82 a is emitted to the front of the electronic device 1.
  • FIG. 12 is a view for explaining a reflection mode of light on the inclined surface 82c of the curved portion 82e.
  • the figure (a-1) is a side view of the light guide member 8.
  • the figure (a-2) is a top view of the light guide member 8, and the curved part 82e is shown enlarged in the figure (a-2).
  • the inclined surface 82c is shaded.
  • FIGS. (B-1) and (b-2) show the light guide member 850 to be compared
  • 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.
  • the light guide member 850 includes the curved portion 852e, the curved portion 852e is not formed with an inclined surface.
  • the line La shown in the figures (a-1) and (a-2) and the line Lb shown in the figures (b-1) and (b-2) were incident on the light guide members 8 and 850 from the LED 68. It is a line which shows the example of the advancing direction of light, and the light shown by these lines is incident on the reflective surfaces 81b and 850b at the same angle.
  • the light guide member 850 also enters the incident portion 851 from below as in the light guide member 8, and is reflected by the reflection surface 851b.
  • the transmitted light travels in the bending portion 852e while reflecting between the upper surface 852g and the lower surface 852h of the extending portion 852.
  • the light traveling inside 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.
  • the light guide member 8 as shown by the line La in (a-1) and (a-2) in the figure, the light is reflected by the reflective surface 81b and reflected between the upper surface 82g and the lower surface 82h of the extending portion 82 The light traveling while reflecting is reflected toward the light emitting surface 82a at a position Pa on the inclined surface 82c.
  • the position on the light emitting surface 82a reached by the light indicated by the line La is closer to the incident portion 81 than the position on the light emitting surface 852a reached by the light indicated by the line Lb.
  • the inclined surface 82c is formed, so that more light reaches a position on the light emitting surface 82a near the incident portion 81. Therefore, the light emitting surface of the curved portion 82e The amount of light emitted from 82a can be increased.
  • the inclined surface 82c is also formed on a rectilinear portion 82f extending from the curved portion 82e. As shown in FIG. 7, light reflected between the upper surface 82 g and the lower surface 82 h in the rectilinear portion 82 f is also reflected toward the light emitting surface 82 a by hitting the inclined surface 82 c.
  • the inclined surface 82 c that reflects light toward the light emitting surface 82 a is formed to extend in the direction along the extension direction of the extension part 82.
  • the inclined surface 82c is formed from one end of the extending portion 82 to the other end. Therefore, light is emitted from the whole of the light emitting surface 82a.
  • the light emitting surface 82a is processed to increase the surface roughness, and the reflectance of the light emitting surface 82a is reduced.
  • 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.
  • the surface roughness is processed 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 ⁇ (the angle of the inclined surface 82c with respect to the direction D3 (see FIG. 7)) of the inclined surface 82c changes in accordance with the position of the inclined surface 82c in the extending direction.
  • the inclination degree ⁇ of the inclined surface 82c becomes smaller as it approaches the tip end 82k of the extending portion 82.
  • the inclined surface 82c is substantially parallel to the light emitting surface 82a.
  • the luminance of the light emitting surface 82a can be adjusted according to the position by changing the inclination degree ⁇ of the inclined surface 82c in accordance with the position of the inclined surface 82c in the stretching direction.
  • the luminance of the light emitting surface 82 a can be lowered as it approaches the tip 82 k of the light guide member 8. Thereby, the appearance of the electronic device 1 can be improved.
  • the width W2 of the opposite surface 82d gradually decreases toward 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 gradually becomes thinner as it approaches the tip 82 k.
  • 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 inclines upward. . Therefore, the height (the distance between the upper surface 82g and the lower surface 82h) of the extension portion 82 gradually decreases as it approaches the tip 82k.
  • the support surface 41 on which the light guide member 8 is placed is also inclined in accordance with the lower surface 82 h. That is, the position of the support surface 41 becomes higher gradually as it approaches its 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.
  • the back surface 82b has a curved surface 82L curved so as to be recessed toward the light emitting surface 82a at a position closer to the incident portion 81 in the curved portion 82e.
  • the curved surface 82L is located at the end of the curved portion 82e near the incident portion 81.
  • the curved surface 82 ⁇ / b> L extends from the incident portion 81 in the extending direction of the extending portion 82.
  • the curved surface 82L is curved so as to be recessed toward the light emitting surface 82a in a plan view of the light guide member 8.
  • the curved surface 82L extends in the extending direction of the extending portion 82 while extending in the extending direction of the extending portion 82 from the incident portion 81 and gradually approaching the light emitting surface 82a as being farther from the incident portion 81 And a second portion R2 gradually separating from the light emitting surface 82a as the distance from the incident portion 81 increases.
  • the curved portion 82e generally becomes thinner gradually as it goes away from the incident portion 81 (as it gets closer to the tip 82k of the extending portion 82), that is, as it gets farther from the incident portion 81, its thickness (Distance between light emitting surface 82a and curved surface 82L) W4 is formed to be small.
  • the thickness W4 of the curved portion 82e tends to decrease as the distance from the incident portion 81 increases.
  • the tendency for the thickness W4 to decrease as the distance from the incident portion 81 decreases is reduced.
  • the thickness W4 of the curved portion 82e decreases with distance from the incident portion 81. Further, in the second portion R2, the thickness W4 of the curved portion 82e increases as the distance from the incident portion 81 increases. Then, in the portion beyond the second portion R2 (portion closer to the tip 82k than the second portion R2), the thickness W4 of the curved portion 82e gradually decreases with distance from the incident portion 81.
  • the curved portion 82e is curved such that the back surface 82b is the outer surface of the curved portion 82e and the light emitting surface 82a is the inner surface.
  • 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 are The light guide member 8 is located on the opposite side.
  • the light reflected toward the extending portion 82 at the incident portion 81 and traveling through the curved portion 82e strikes the curved surface 82L and is reflected toward the light emitting surface 82a of the curved portion 82e. Then, the light transmitted through the light emitting surface 82 a is emitted to the outside.
  • FIG. 13 is a view for explaining a reflection mode of light on the curved surface 82L.
  • the light guide member 8 described above is shown in FIG. 6A, and the light guide member 800 to be compared is shown in FIG.
  • the curved surface which curved more largely than the curved surface 82L shown in FIG. 10 is shown.
  • the light guide member 800 is provided with the back surface 820b in which the curved surface 82L as described above is not formed.
  • the light guide member 800 is provided with an incident portion 810 in which a reflective surface 810 b is formed.
  • the light reflected by the reflective surface 810b strikes the back surface 820b and is reflected toward the light emitting surface 820a.
  • the light reflected by the reflecting surface 81b is reflected toward the light emitting surface 82a by hitting the curved surface 82L.
  • the curved surface 82L is curved so as to be recessed toward the light emitting surface 82a, so the incident angle of light on the curved surface 82L is larger than the incident angle of light on the back surface 820b of the light guide member 800. There is. Therefore, in the light guide member 8, light is reflected toward a position closer to the end of the light emitting surface 82a (a position closer to the incident portion 81) than the light guide member 800. As a result, in the light guide member 8, the brightness at a position near the end of the light emitting surface 82 a is increased compared to the light guide member 800.
  • the back surface 82b of the extending portion 82 which is the surface opposite to the light emitting surface 82a includes the inclined surface 82c which is inclined with respect to the light emitting surface 82a.
  • the inclined surface 82c is formed to obliquely intersect the direction D1 in which the light emitting surface 82a and the back surface 82 face each other and the direction D3 perpendicular to both the extending direction D2 of the extending portion 82.
  • the light traveling in the extending direction of the extending portion 82 while reflecting on the surface perpendicular to the light emitting surface 82a also hits the inclined surface 82c.
  • the light is reflected toward the light emitting surface 82a.
  • the utilization efficiency of the light emitted from the LED 68 can be improved.
  • the light guide member 8 has the extending portion 82 extending in the direction along the outer surface of the electronic device 1.
  • the extending portion 82 has a light emitting surface 82 a exposed on the outer surface of the electronic device 1 and a back surface 82 b which is a surface opposite to the light emitting surface 82 a.
  • the back surface 82b has a curved surface 82L curved so as to be recessed toward the light emitting surface 82a.
  • the brightness can be increased at the position on the light emitting surface 82a where the light reflected on the curved surface 82L comes. Therefore, by appropriately adjusting the position of the curved surface 82L, it is possible to suppress the occurrence of a position where the luminance is insufficient.
  • the present invention is not limited to the electronic device 1 described above, and various modifications are possible.
  • the inclined surface 82c is formed from one end of the extending portion 82 to the other end.
  • the inclined surface 82 c may be formed only on a part of the extending portion 82.
  • the inclined surface 82c may be formed at a position where more luminance is required in the extending portion 82.
  • the inclined surface 82c linearly extends from the upper edge 82i to the lower edge 82j.
  • the inclined surface 82c may be curved. That is, the inclined surface 82c may extend downward while curving from the upper edge 82i to reach the lower edge 82j.
  • the curved surface 82L is formed in the curved portion 82e.
  • the curved surface 82L may be formed in the straight advancing portion 82f.

Abstract

La présente invention se rapporte à un appareil électronique qui comprend un organe guide de lumière qui est réalisé de sorte à s'étendre depuis une partie dans laquelle pénètre une lumière émise depuis une source de lumière, et qui utilise la lumière émise depuis la source de lumière de manière efficace. L'organe guide de lumière comporte une section de prolongement (82) qui s'étend dans la direction de la surface extérieure de l'appareil électronique. La section de prolongement (82) comporte une surface émettant de la lumière qui est mise à nu par rapport à la surface extérieure de l'appareil électronique. En outre, la surface arrière (82b), qui est la surface sur le côté arrière de la surface émettant de la lumière de la section de prolongement (82), comprend une surface inclinée (82c). La surface inclinée (82c) est réalisée de telle sorte que la surface inclinée vienne couper en diagonale la direction perpendiculaire à la fois à la direction dans laquelle la surface émettant de la lumière et la surface arrière (82b) se font face l'une à l'autre et la direction dans laquelle la section de prolongement (82) s'étend.
PCT/JP2010/051101 2009-04-02 2010-01-28 Appareil électronique WO2010113535A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2009-090566 2009-04-02
JP2009-090567 2009-04-02
JP2009090567A JP5101556B2 (ja) 2009-04-02 2009-04-02 電子機器
JP2009090566A JP5101555B2 (ja) 2009-04-02 2009-04-02 電子機器

Publications (1)

Publication Number Publication Date
WO2010113535A1 true WO2010113535A1 (fr) 2010-10-07

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PCT/JP2010/051101 WO2010113535A1 (fr) 2009-04-02 2010-01-28 Appareil électronique

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WO (1) WO2010113535A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014119920A (ja) * 2012-12-14 2014-06-30 Fujitsu Ltd 情報処理装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09252337A (ja) * 1996-03-14 1997-09-22 Kokusai Electric Co Ltd 導光体
JP2001075514A (ja) * 1999-06-28 2001-03-23 Shinsei Sangyo Kk 自発光型サイン表示装置
JP2002198567A (ja) * 2000-12-25 2002-07-12 Hitachi Ltd 表示装置およびそれを用いた携帯情報装置
JP2004061922A (ja) * 2002-07-30 2004-02-26 Sony Corp 光反射表示方法、光反射表示装置および電子機器
JP2005202318A (ja) * 2004-01-19 2005-07-28 Toshiba Corp 電子機器の照光装置
JP2008527686A (ja) * 2004-12-30 2008-07-24 ソニー エリクソン モバイル コミュニケーションズ， エービー 密封された枠体、この枠体の組み立て方法及び分解方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09252337A (ja) * 1996-03-14 1997-09-22 Kokusai Electric Co Ltd 導光体
JP2001075514A (ja) * 1999-06-28 2001-03-23 Shinsei Sangyo Kk 自発光型サイン表示装置
JP2002198567A (ja) * 2000-12-25 2002-07-12 Hitachi Ltd 表示装置およびそれを用いた携帯情報装置
JP2004061922A (ja) * 2002-07-30 2004-02-26 Sony Corp 光反射表示方法、光反射表示装置および電子機器
JP2005202318A (ja) * 2004-01-19 2005-07-28 Toshiba Corp 電子機器の照光装置
JP2008527686A (ja) * 2004-12-30 2008-07-24 ソニー エリクソン モバイル コミュニケーションズ， エービー 密封された枠体、この枠体の組み立て方法及び分解方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014119920A (ja) * 2012-12-14 2014-06-30 Fujitsu Ltd 情報処理装置

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