WO2016084737A1 - Illumination device and drawer device - Google Patents

Illumination device and drawer device Download PDF

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Publication number
WO2016084737A1
WO2016084737A1 PCT/JP2015/082685 JP2015082685W WO2016084737A1 WO 2016084737 A1 WO2016084737 A1 WO 2016084737A1 JP 2015082685 W JP2015082685 W JP 2015082685W WO 2016084737 A1 WO2016084737 A1 WO 2016084737A1
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WO
WIPO (PCT)
Prior art keywords
surface portion
light source
light
optical axis
light guide
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PCT/JP2015/082685
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French (fr)
Japanese (ja)
Inventor
卓史 京山
Original Assignee
株式会社ニフコ
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.)
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Publication date
Priority claimed from JP2014244838A external-priority patent/JP6246112B2/en
Application filed by 株式会社ニフコ filed Critical 株式会社ニフコ
Priority to US15/529,768 priority Critical patent/US10149534B2/en
Priority to CN201580064694.8A priority patent/CN107000637B/en
Priority to DE112015005382.4T priority patent/DE112015005382T5/en
Priority to KR1020177015974A priority patent/KR101917048B1/en
Publication of WO2016084737A1 publication Critical patent/WO2016084737A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
    • B60Q3/20—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors for lighting specific fittings of passenger or driving compartments; mounted on specific fittings of passenger or driving compartments
    • B60Q3/225—Small compartments, e.g. glove compartments
    • B60Q3/229—Cup holders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N3/00—Arrangements or adaptations of other passenger fittings, not otherwise provided for
    • B60N3/10—Arrangements or adaptations of other passenger fittings, not otherwise provided for of receptacles for food or beverages, e.g. refrigerated
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof

Definitions

  • the present invention relates to an illumination device that uniformly diffuses light from one light source in a direction orthogonal to the optical axis of the light source, and a drawer device using the same.
  • Patent Document 1 In an in-vehicle container holder, there is one in which light from a light source is guided to a horizontally long display plate provided on the front surface of a drawer-type container holding member through a light guide member to emit light (Patent Document 1). reference).
  • the main problem to be solved by the present invention is that an illumination device that uniformly diffuses light from one light source in a direction orthogonal to the optical axis of the light source, and a drawer device using the same Is to provide
  • the lighting device is A lighting device comprising a light source and a light guide positioned in front of the light source,
  • the light guide includes a first surface portion formed on the light source side and a second surface portion formed on a side opposite to the first surface portion,
  • the first surface portion is constituted by a plane
  • the second surface portion is constituted by an inclined surface that intersects at an angle other than a right angle with respect to the optical axis of the light source,
  • the angle formed by the inclined surface and the optical axis on the light source side is small on the center side of the second surface portion located on the optical axis, and is increased on the peripheral side of the second surface portion. It was supposed to be.
  • the angle formed by the inclined surface forming the second surface portion and the optical axis is increased on the peripheral side of the second surface portion, after the light from the light source is incident from the first surface portion and reflected by the second surface portion. Furthermore, the light reflected forward by the first surface portion, that is, the light radiated from the emitting portion can be brought closer to the optical axis side. As a result, light from one light source is diffused as uniformly as possible in a direction perpendicular to the optical axis of the light source, and typically, the elongated display portion emitted by the light is arranged in the length direction. It is possible to emit light so that the luminance does not differ at each position over the range.
  • the light guide has a length and a width, and on the formation side of the second surface portion, one side portion along the length direction serves as an emission portion, and the emission portion and the other side portion along the length direction
  • one of the preferred embodiments of the present invention is that the second surface portion is provided between the two.
  • the shape on the other side is symmetrical with respect to the shape on one side across the virtual vertical surface or horizontal plane including the optical axis in the second surface portion.
  • the second surface portion is constituted by a plurality of inclined surfaces that have different angles with respect to the optical axis of the light source.
  • the drawer apparatus is A drawing device that constitutes an interior part of an automobile,
  • the lighting device is built in, and an elongated display portion formed on the front surface of the drawer body constituting the drawer device is caused to emit light by the emitting portion of the light guide.
  • the illumination device According to the illumination device according to the present invention, light from one light source can be diffused as uniformly as possible in a direction perpendicular to the optical axis of the light source.
  • the long and narrow display unit that emits light by the light of the light source emits light so that the luminance does not differ at each position in the length direction.
  • FIG. 1 is a perspective view of a drawer device in which an illumination device according to an embodiment of the present invention is incorporated, and shows a state in which the drawer body has been fully pushed.
  • FIG. 2 is a perspective view of the drawer device, showing a state in which the drawer body is pulled out.
  • FIG. 3 is a longitudinal cross-sectional configuration diagram showing the usage state of the drawer device, and the two-dot chain line shows the lid portion of the drawer body, the instrument panel, and the beverage container in the fully pushed position.
  • FIG. 4 is a vertical cross-sectional configuration diagram of the main part of the drawer device, showing a state where the drawer body has been fully pushed.
  • FIG. 5 is a perspective view showing the lid portion constituting the drawer device as seen from the back side.
  • FIG. 6 is a perspective view of a light guide that constitutes the lighting device, and shows the light guide from the first surface portion side.
  • FIG. 7 is a perspective view of a light guide constituting the illumination device, and shows the light guide from the second surface side.
  • FIG. 8 is a cross-sectional view taken along the line AA in FIG. 9 is a cross-sectional view taken along the line BB in FIG.
  • FIG. 10 is a configuration diagram illustrating a main part of the lighting device as a horizontal section.
  • FIG. 11 is an enlarged configuration diagram of the light guide in FIG.
  • FIG. 12 is an enlarged configuration diagram of the light guide in FIG.
  • FIG. 13 is an enlarged configuration diagram of a main part of the light guide showing another configuration example of the second surface portion of the light guide.
  • the illuminating device typically diffuses light from one light source L as uniformly as possible in a direction perpendicular to the optical axis La of the light source L, In other words, the elongated display portion 14h that emits light by the light is caused to emit light so that the luminance does not differ at each position in the length direction.
  • Such an illumination device includes a light source L (light-emitting diode or light bulb) and a light guide G positioned in front of the light source L.
  • the light guide G is made of a plastic material having optical transparency.
  • the light guide G includes a first surface portion 1 formed on the light source L side and a second surface portion 2 formed on the side opposite to the first surface portion 1.
  • the said 1st surface part 1 of this light guide G is comprised by the plane 1a, and the said 2nd surface part 2 removes the right angle with respect to the optical axis La of the said light source L.
  • the inclined surface 2a intersects at an angle.
  • the light guide G has a length and a width, as shown in FIG. 7, and the side portion 3 along the length direction on the formation side of the second surface portion 2 serves as the emission portion 5.
  • the second surface portion 2 is provided between the emitting portion 5 and the other side portion 4 along the length direction.
  • the emission part 5 is formed along the one side part 3 and has a trapezoidal shape protruding forward from the second surface part 2.
  • the second surface portion 2 has a recess 6 formed with the deepest portion 6 a in the middle in the length direction of the light guide G below the emitting portion 5. It is comprised by the inner surface.
  • the recess 6 includes a virtual first straight line y1 positioned between a virtual center line x that bisects the light guide G left and right through the deepest portion 6a and the right side portion 7 of the light guide G, A second straight line which is located between the center line x and the left side 8 of the light guide G and which makes the distance between the center line x equal to the distance between the first straight line y1 and the center line x. It is formed between y2 (see FIG. 7).
  • the cross-sectional shape of the recess 6 in the direction orthogonal to the center line x is substantially equal at any position in the continuous direction of the center line x. Between the 2nd surface part 2 and the output part 5, the inclined surface 9 which goes gradually ahead as the output part 5 is approached is formed.
  • the light guide G is installed in front of the light source L so that the center line x is positioned on the optical axis La.
  • the second surface portion 2 is formed so that the shape on the other side is symmetrical with respect to the shape on one side across the virtual vertical surface z (see FIG. 10) including the optical axis La. .
  • the second surface portion 2 is divided between the center line x and the first straight line y ⁇ b> 1, the center line x, and the center line. x and the second straight line y2 between the position that bisects and the center line x, that is, on the center side of the second surface portion 2, and the outside, that is, the peripheral side of the second surface portion 2.
  • the inclination is reduced. That is, the angle formed by the inclined surface 2a and the optical axis La on the light source L side is small on the center side of the second surface portion 2 positioned on the optical axis La ( ⁇ 1, FIG. 12).
  • the second surface portion 2 is composed of a plurality of inclined surfaces 2a that vary in angle with respect to the optical axis La of the light source L by becoming larger on the peripheral side of the two surface portions 2 ( ⁇ 2, FIG. 11).
  • the light guide G is provided with a trapezoidal raised portion 10 along the one side portion 3 behind the emitting portion 5 on the formation side of the first surface portion 1.
  • the first surface portion 1 is formed between the trapezoidal raised portion 10 and the other side portion 4 of the light guide G. That is, the second surface portion 2 including the inclined surface 2a is formed in front of the first surface portion 1 that is the flat surface 1a.
  • the light from the light source L is incident from the first surface portion 1 and secondly. After being reflected by the surface portion 2, the light further reflected by the first surface portion 1 and traveling forward, that is, the light emitted from the emitting portion 5 can be brought closer to the optical axis La side (in FIG. Is indicated by a two-dot chain line).
  • the elongated display portion 14h emitted by the light is typically formed. It is possible to emit light so that the luminance does not differ at each position along the length direction.
  • the inclination of the inclined surface 2a on the peripheral side of the second surface portion 2 is assumed to be equal to the inclination of the inclined surface 2a on the central side, as indicated by a two-dot chain line in FIG.
  • the path of light that enters from the first surface portion 1 and is reflected by the second surface portion 2 and further reflected by the first surface portion 1 and traveling forward is separated from the optical axis La side. For this reason, the luminance of the elongated display portion 14h emitted by the light decreases on the end side of the display portion 14h.
  • the recess 6 is configured to have the deepest portion 6a in the form of a dot, and a circular range centered on the deepest portion 6a has a central side of the second surface portion 2 formed of the inclined surface 2a having a large inclination. 2b, and the ring-shaped range surrounding the central side 2b may be the peripheral side 2c of the second surface portion 2 formed of the inclined surface 2a having a small inclination.
  • the effect shown in FIG. 11 is obtained in the entire circumferential direction centering on the optical axis La.
  • such a lighting device is built in a drawer device H that constitutes an interior part of an automobile, and forms a part of the drawer device H.
  • the drawer device H includes a main body 13 having a horizontally long front opening 13a, and is housed in the main body 13 so as to be movable back and forth, and pushed into the main body 13 at the front end. And a drawer body 14 having a horizontally long lid portion 14a that closes the front opening 13a.
  • such a drawer device H typically has a main body 13 placed inside an instrument panel 15, and the lid 14 a is positioned at the position where the drawer body 14 is fully pushed. It is used so as to form a part of the fifteen cosmetic surfaces.
  • the drawer body 14 is configured to form a frame shape behind the lid portion 14a, and the beverage container P is stored in the frame inner space 14d from above at a position pulled out from the main body 13. Can be done. Further, when the drawer body 14 is pulled out from the main body 13, the frame inner space 14d is rotated from a horizontal position stored in the frame inner space 14d to a deployment position where the front end portion 14f is positioned below the frame inner space 14d. The support member 14e is stored, and the bottom portion Pa of the beverage container P stored in the frame inner space 14d as described above is supported by the front end portion 14f of the support member 14e in the unfolded position. ( Figure 3). That is, in the illustrated example, the drawer device H constitutes a cup holder.
  • the light source L (specific illustration of the light source L is omitted) is a position in the middle of the front opening 13a of the main body 13 in the left-right direction, as shown in FIG. It is provided outside the lower surface portion of the main body 13 so as to emit light obliquely upward through a through hole 13b formed in the main body 13 below 13a.
  • Reference numeral 13c in the figure denotes a holding unit for the light source L.
  • the elongate display part 14h which consists of the through-hole 14i obstruct
  • the light guide G is attached to the back side of the lid portion 14a so that the emitting portion 5 is positioned behind the display portion 14h.
  • the light of the light source L is incident from the first surface portion 1 side of the light guide G and diffused in the light guide G at a position where the drawer body 14 is fully pushed into the main body 13.
  • the display unit 14h emits light at a position where the drawer body 14 is fully pushed into the main body 13 (FIG. 4).
  • the light of the light source L leaks through a plurality of small holes 14g... 14g formed on the rear end side of the support member 14e.
  • the position where the beverage container P is held with respect to the cup holder can be easily visually confirmed at night or the like.
  • the light guide G has a length along the width direction between the two side portions 7 and 8 along the width direction and the second surface portion 2, as shown in FIG. A through hole 11 having a hole shape is formed, and a portion located outside the through hole 11 is an elastically deformable portion 12.
  • the upper and lower holding walls 14 b and 14 b provided at a distance substantially equal to the width dimension of the light guide G, and the length of the light guide G
  • Left and right holding walls 14c, 14c provided at a distance slightly smaller than the dimensions are formed, and the light guide G is formed on each holding wall 14b ... 14c while elastically deforming the elastically deformable portion 12. It is inserted into the enclosed space and attached to the back side of the lid portion 14a.
  • the inclined surface 2a constituting the second surface portion 2 may be constituted by a concave curved surface instead of the inclined plane indicated by the two-dot chain line in FIG. Further, the second surface portion 2 may be formed only by such a concave curved surface, or may be configured by combining an inclined plane and such a concave curved surface.
  • the present invention is not limited to the embodiment described above, and includes all embodiments that can achieve the object of the present invention.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Transportation (AREA)
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Abstract

An illumination device provided with a light source and a light-guide body positioned in front of the light source. The light-guide body is provided with a first face part formed on the light-source side thereof and a second face part formed on the reverse side thereof from the first face part. The first face part is configured from a flat face, and the second face part is configured from an inclined face which intersects with the optical axis of the light source at an angle other than a right angle. The angle formed by the inclined face and the optical axis on the light-source side is configured so as to become smaller toward the center of the second face part positioned on the optical axis and become larger toward the periphery of the second face part.

Description

照明装置、及び抽斗装置Lighting device and drawer device
　この発明は、一つの光源からの光を、この光源の光軸に直交する方向に均一に拡散させるようにした照明装置、及び、これを利用してなる抽斗装置に関する。 The present invention relates to an illumination device that uniformly diffuses light from one light source in a direction orthogonal to the optical axis of the light source, and a drawer device using the same.
　車載用の容器ホルダにおいて、光源の光を導光部材を介して、抽斗タイプの容器保持部材の前面に設けた横長の表示プレートに導き、これを発光させるようにしたものがある（特許文献１参照）。 In an in-vehicle container holder, there is one in which light from a light source is guided to a horizontally long display plate provided on the front surface of a drawer-type container holding member through a light guide member to emit light (Patent Document 1). reference).
　このような長さを持った表示プレートを、単一の光源によって発光させるようにした場合、光源の光軸上の輝度に対し光軸の側方における輝度が低下し、表示プレート全体を均一に輝かせ難い。 When a display plate having such a length is made to emit light by a single light source, the luminance on the side of the optical axis is reduced relative to the luminance on the optical axis of the light source, and the entire display plate is made uniform. It is difficult to shine.
特開２００２－３０７９９４号公報JP 2002-307994 A
　この発明が解決しようとする主たる問題点は、一つの光源からの光を、この光源の光軸に直交する方向に均一に拡散させるようにした照明装置、及び、これを利用してなる抽斗装置を提供する点にある。 The main problem to be solved by the present invention is that an illumination device that uniformly diffuses light from one light source in a direction orthogonal to the optical axis of the light source, and a drawer device using the same Is to provide
　前記課題を達成するために、この発明にあっては、第一の観点から、照明装置を、
　光源と、この光源の前方に位置される導光体とを備えてなる照明装置であって、
　前記導光体は、前記光源側に形成された第一面部と、この第一面部と反対の側に形成された第二面部とを備えており、
　前記第一面部は平面により構成されており、
　前記第二面部は前記光源の光軸に対して直角を除いた角度で交わる傾斜面により構成されており、
　前記傾斜面と前記光軸とが前記光源側においてなす角度が、前記光軸上に位置される前記第二面部の中央側で小さく、前記第二面部の周辺側で大きくなるようにしてなる、ものとした。 In order to achieve the above object, in the present invention, from the first aspect, the lighting device is
A lighting device comprising a light source and a light guide positioned in front of the light source,
The light guide includes a first surface portion formed on the light source side and a second surface portion formed on a side opposite to the first surface portion,
The first surface portion is constituted by a plane,
The second surface portion is constituted by an inclined surface that intersects at an angle other than a right angle with respect to the optical axis of the light source,
The angle formed by the inclined surface and the optical axis on the light source side is small on the center side of the second surface portion located on the optical axis, and is increased on the peripheral side of the second surface portion. It was supposed to be.
　第二面部を構成する傾斜面と光軸とがなす前記角度を第二面部の周辺側で大きくさせると、光源からの光のうち、第一面部から入射され第二面部に反射された後さらに第一面部に反射されて前方に向かう光、つまり、前記出射部から放射される光を光軸側に寄せることができる。これにより、一つの光源からの光を、この光源の光軸に直交する方向に可及的に均一に拡散させて、典型的には、前記光により発光される細長い表示部をその長さ方向に亘る各位置において輝度が異ならないように発光させることが可能となる。 When the angle formed by the inclined surface forming the second surface portion and the optical axis is increased on the peripheral side of the second surface portion, after the light from the light source is incident from the first surface portion and reflected by the second surface portion. Furthermore, the light reflected forward by the first surface portion, that is, the light radiated from the emitting portion can be brought closer to the optical axis side. As a result, light from one light source is diffused as uniformly as possible in a direction perpendicular to the optical axis of the light source, and typically, the elongated display portion emitted by the light is arranged in the length direction. It is possible to emit light so that the luminance does not differ at each position over the range.
　前記導光体は、長さと幅とを備え、前記第二面部の形成側において長さ方向に沿った一辺部を出射部とすると共に、この出射部と長さ方向に沿った他辺部との間に前記第二面部を備えてなる、ものとすることが、この発明の好ましい態様の一つとされる。 The light guide has a length and a width, and on the formation side of the second surface portion, one side portion along the length direction serves as an emission portion, and the emission portion and the other side portion along the length direction One of the preferred embodiments of the present invention is that the second surface portion is provided between the two.
　また、前記第二面部における前記光軸を含んだ仮想の垂直面又は水平面を挟んだ一方側の形状に対し、他方側の形状が対称となるようにしておくことが、この発明の好ましい態様の一つとされる。 In addition, it is preferable that the shape on the other side is symmetrical with respect to the shape on one side across the virtual vertical surface or horizontal plane including the optical axis in the second surface portion. One.
　また、前記第二面部を、前記光源の光軸に対する角度を異ならせる複数の傾斜面から構成させておくことが、この発明の好ましい態様の一つとされる。 Further, it is one of the preferable aspects of the present invention that the second surface portion is constituted by a plurality of inclined surfaces that have different angles with respect to the optical axis of the light source.
　また、前記課題を達成するために、この発明にあっては、第二の観点から、抽斗装置を、
　自動車の内装品を構成する抽斗装置であって、
　前記照明装置を内蔵すると共に、前記抽斗装置を構成する抽斗体の前面に形成された細長い表示部を前記導光体の出射部により発光させるようにしてなる、ものとした。 Moreover, in order to achieve the said subject, in this invention, from the 2nd viewpoint, the drawer apparatus is
A drawing device that constitutes an interior part of an automobile,
The lighting device is built in, and an elongated display portion formed on the front surface of the drawer body constituting the drawer device is caused to emit light by the emitting portion of the light guide.
　この発明にかかる照明装置によれば、一つの光源からの光を、この光源の光軸に直交する方向に可及的に均一に拡散させることができる。この発明にかかる抽斗装置は、前記光源の光により発光される細長い表示部をその長さ方向に亘る各位置において輝度が異ならないように発光させる。 According to the illumination device according to the present invention, light from one light source can be diffused as uniformly as possible in a direction perpendicular to the optical axis of the light source. In the drawer device according to the present invention, the long and narrow display unit that emits light by the light of the light source emits light so that the luminance does not differ at each position in the length direction.
図１は、この発明の一実施の形態にかかる照明装置を内蔵させてなる抽斗装置の斜視図であり、抽斗体を押し込みきった状態を示している。FIG. 1 is a perspective view of a drawer device in which an illumination device according to an embodiment of the present invention is incorporated, and shows a state in which the drawer body has been fully pushed. 図２は、前記抽斗装置の斜視図であり、抽斗体を引き出した状態を示している。FIG. 2 is a perspective view of the drawer device, showing a state in which the drawer body is pulled out. 図３は、前記抽斗装置の利用状態を示した縦断面構成図であり、二点鎖線は押し込みきった位置にある抽斗体の蓋部、インストルメントパネル、飲料容器を示している。FIG. 3 is a longitudinal cross-sectional configuration diagram showing the usage state of the drawer device, and the two-dot chain line shows the lid portion of the drawer body, the instrument panel, and the beverage container in the fully pushed position. 図４は、前記抽斗装置の要部縦断面構成図であり、抽斗体を押し込みきった状態を示している。FIG. 4 is a vertical cross-sectional configuration diagram of the main part of the drawer device, showing a state where the drawer body has been fully pushed. 図５は、前記抽斗装置を構成する蓋部を裏側から見て示した斜視図である。FIG. 5 is a perspective view showing the lid portion constituting the drawer device as seen from the back side. 図６は、前記照明装置を構成する導光体の斜視図であり、第一面部側からかかる導光体を見て示している。FIG. 6 is a perspective view of a light guide that constitutes the lighting device, and shows the light guide from the first surface portion side. 図７は、前記照明装置を構成する導光体の斜視図であり、第二面部側からかかる導光体を見て示している。FIG. 7 is a perspective view of a light guide constituting the illumination device, and shows the light guide from the second surface side. 図８は、図６におけるＡ－Ａ線位置での断面図である。FIG. 8 is a cross-sectional view taken along the line AA in FIG. 図９は、図６におけるＢ－Ｂ線位置での断面図である。9 is a cross-sectional view taken along the line BB in FIG. 図１０は、照明装置の要部を水平方向の断面として示した構成図である。FIG. 10 is a configuration diagram illustrating a main part of the lighting device as a horizontal section. 図１１は、図１０における導光体の拡大構成図である。FIG. 11 is an enlarged configuration diagram of the light guide in FIG. 図１２は、図１０における導光体の拡大構成図である。FIG. 12 is an enlarged configuration diagram of the light guide in FIG. 図１３は、導光体の第二面部の別の構成例を示した導光体の要部拡大構成図である。FIG. 13 is an enlarged configuration diagram of a main part of the light guide showing another configuration example of the second surface portion of the light guide.
　以下、図１～図１３に基づいて、この発明の典型的な実施の形態について、説明する。この実施の形態にかかる照明装置は、図４に示すように、一つの光源Ｌからの光を、この光源Ｌの光軸Ｌａに直交する方向に可及的に均一に拡散させて、典型的には、前記光により発光される細長い表示部１４ｈをその長さ方向に亘る各位置において輝度が異ならないように発光させるものである。 Hereinafter, a typical embodiment of the present invention will be described with reference to FIGS. As shown in FIG. 4, the illuminating device according to this embodiment typically diffuses light from one light source L as uniformly as possible in a direction perpendicular to the optical axis La of the light source L, In other words, the elongated display portion 14h that emits light by the light is caused to emit light so that the luminance does not differ at each position in the length direction.
　かかる照明装置は、光源Ｌ（発光ダイオードや電球）と、この光源Ｌの前方に位置される導光体Ｇとを備えてなる。図示の例では、かかる導光体Ｇは光透過性を持ったプラスチック製のものとなっている。 Such an illumination device includes a light source L (light-emitting diode or light bulb) and a light guide G positioned in front of the light source L. In the example shown in the drawing, the light guide G is made of a plastic material having optical transparency.
　前記導光体Ｇは、前記光源Ｌ側に形成された第一面部１と、この第一面部１と反対の側に形成された第二面部２とを備えている。 The light guide G includes a first surface portion 1 formed on the light source L side and a second surface portion 2 formed on the side opposite to the first surface portion 1.
　そして、かかる導光体Ｇの前記第一面部１は、図１１に示すように、平面１ａにより構成されており、前記第二面部２は前記光源Ｌの光軸Ｌａに対して直角を除いた角度で交わる傾斜面２ａにより構成されている。 And as shown in FIG. 11, the said 1st surface part 1 of this light guide G is comprised by the plane 1a, and the said 2nd surface part 2 removes the right angle with respect to the optical axis La of the said light source L. The inclined surface 2a intersects at an angle.
　図示の例では、前記導光体Ｇは、図７に示すように、長さと幅とを備え、前記第二面部２の形成側において長さ方向に沿った一辺部３を出射部５とすると共に、この出射部５と長さ方向に沿った他辺部４との間に前記第二面部２を備えたものとなっている。 In the illustrated example, the light guide G has a length and a width, as shown in FIG. 7, and the side portion 3 along the length direction on the formation side of the second surface portion 2 serves as the emission portion 5. In addition, the second surface portion 2 is provided between the emitting portion 5 and the other side portion 4 along the length direction.
　図示の例では、出射部５は、前記一辺部３に沿って形成されると共に、前記第二面部２よりも前方に突き出す台状をなしている。 In the illustrated example, the emission part 5 is formed along the one side part 3 and has a trapezoidal shape protruding forward from the second surface part 2.
　また、図示の例では、図９に示すように、第二面部２は、出射部５の下方において、導光体Ｇの長さ方向中程の位置を最深部６ａとして形成された凹所６の内面によって構成されている。かかる凹所６は、前記最深部６ａを通って導光体Ｇを左右に二分する仮想の中心線ｘと導光体Ｇの右辺部７との間に位置される仮想の第一直線ｙ１と、前記中心線ｘと導光体Ｇの左辺部８との間に位置されると共に前記中心線ｘとの間の距離を前記第一直線ｙ１と中心線ｘとの間の距離と等しくする第二直線ｙ２との間に形成されている（図７参照）。前記中心線ｘに直交する向きでのかかる凹所６の断面形状は、この中心線ｘの連続方向において、いずれの位置においても略等しくなるようになっている。第二面部２と出射部５との間には、出射部５に近づくに連れて次第に前方に向かう傾斜面９が形成されている。 Further, in the illustrated example, as shown in FIG. 9, the second surface portion 2 has a recess 6 formed with the deepest portion 6 a in the middle in the length direction of the light guide G below the emitting portion 5. It is comprised by the inner surface. The recess 6 includes a virtual first straight line y1 positioned between a virtual center line x that bisects the light guide G left and right through the deepest portion 6a and the right side portion 7 of the light guide G, A second straight line which is located between the center line x and the left side 8 of the light guide G and which makes the distance between the center line x equal to the distance between the first straight line y1 and the center line x. It is formed between y2 (see FIG. 7). The cross-sectional shape of the recess 6 in the direction orthogonal to the center line x is substantially equal at any position in the continuous direction of the center line x. Between the 2nd surface part 2 and the output part 5, the inclined surface 9 which goes gradually ahead as the output part 5 is approached is formed.
　かかる導光体Ｇは、前記中心線ｘが、前記光軸Ｌａ上に位置されるように、前記光源Ｌの前方に設置される。 The light guide G is installed in front of the light source L so that the center line x is positioned on the optical axis La.
　そして、前記第二面部２は、前記光軸Ｌａを含んだ仮想の垂直面ｚ（図１０参照）を挟んだ一方側の形状に対し、他方側の形状が対称となるように形成されている。 The second surface portion 2 is formed so that the shape on the other side is symmetrical with respect to the shape on one side across the virtual vertical surface z (see FIG. 10) including the optical axis La. .
　また、図示の例では、図７に示すように、第二面部２は、前記中心線ｘと前記第一直線ｙ１との間を二分する位置と前記中心線ｘとの間、及び、前記中心線ｘと前記第二直線ｙ２との間を二分する位置と前記中心線ｘとの間、つまり、第二面部２の中央側で傾斜を大きくし、その外側、つまり、第二面部２の周辺側で傾斜を小さくしている。すなわち、前記傾斜面２ａと前記光軸Ｌａとが前記光源Ｌ側においてなす角度は、前記光軸Ｌａ上に位置される前記第二面部２の中央側で小さく（θ１、図１２）、前記第二面部２の周辺側で大きくなることにより（θ２、図１１）、前記第二面部２は、前記光源Ｌの光軸Ｌａに対する角度を異ならせる複数の傾斜面２ａから構成されている。 In the illustrated example, as shown in FIG. 7, the second surface portion 2 is divided between the center line x and the first straight line y <b> 1, the center line x, and the center line. x and the second straight line y2 between the position that bisects and the center line x, that is, on the center side of the second surface portion 2, and the outside, that is, the peripheral side of the second surface portion 2. The inclination is reduced. That is, the angle formed by the inclined surface 2a and the optical axis La on the light source L side is small on the center side of the second surface portion 2 positioned on the optical axis La (θ1, FIG. 12). The second surface portion 2 is composed of a plurality of inclined surfaces 2a that vary in angle with respect to the optical axis La of the light source L by becoming larger on the peripheral side of the two surface portions 2 (θ2, FIG. 11).
　一方、導光体Ｇは、図８に示すように、第一面部１の形成側において、出射部５の後方に、前記一辺部３に沿った台状***部１０を備えている。前記第一面部１は、この台状***部１０と導光体Ｇの他辺部４との間に形成されている。すなわち、平面１ａである前記第一面部１の前方に傾斜面２ａよりなる前記第二面部２が形成されている。 On the other hand, as shown in FIG. 8, the light guide G is provided with a trapezoidal raised portion 10 along the one side portion 3 behind the emitting portion 5 on the formation side of the first surface portion 1. The first surface portion 1 is formed between the trapezoidal raised portion 10 and the other side portion 4 of the light guide G. That is, the second surface portion 2 including the inclined surface 2a is formed in front of the first surface portion 1 that is the flat surface 1a.
　第二面部２を構成する傾斜面２ａと光軸Ｌａとがなす前記角度を第二面部２の周辺側で大きくさせると、光源Ｌからの光のうち、第一面部１から入射され第二面部２に反射された後さらに第一面部１に反射されて前方に向かう光、つまり、前記出射部５から放射される光を光軸Ｌａ側に寄せることができる（図１１において、かかる光の道筋を二点鎖線で示す。）。これにより、一つの光源Ｌからの光を、この光源Ｌの光軸Ｌａに直交する方向に可及的に均一に拡散させて、典型的には、前記光により発光される細長い表示部１４ｈをその長さ方向に亘る各位置において輝度が異ならないように発光させることが可能となる。 When the angle formed by the inclined surface 2a constituting the second surface portion 2 and the optical axis La is increased on the peripheral side of the second surface portion 2, the light from the light source L is incident from the first surface portion 1 and secondly. After being reflected by the surface portion 2, the light further reflected by the first surface portion 1 and traveling forward, that is, the light emitted from the emitting portion 5 can be brought closer to the optical axis La side (in FIG. Is indicated by a two-dot chain line). As a result, light from one light source L is diffused as uniformly as possible in a direction perpendicular to the optical axis La of the light source L, and the elongated display portion 14h emitted by the light is typically formed. It is possible to emit light so that the luminance does not differ at each position along the length direction.
　前記第二面部２の周辺側の傾斜面２ａの傾斜を中央側の傾斜面２ａの傾斜と仮に等しくしたとすると、図１２において二点鎖線で示すように、光源Ｌからの光のうち、第一面部１から入射され第二面部２に反射された後さらに第一面部１に反射されて前方に向かう光の道筋は光軸Ｌａ側から離れる。このため、前記光により発光される細長い表示部１４ｈの輝度はこの表示部１４ｈの端側で低下する。 If the inclination of the inclined surface 2a on the peripheral side of the second surface portion 2 is assumed to be equal to the inclination of the inclined surface 2a on the central side, as indicated by a two-dot chain line in FIG. The path of light that enters from the first surface portion 1 and is reflected by the second surface portion 2 and further reflected by the first surface portion 1 and traveling forward is separated from the optical axis La side. For this reason, the luminance of the elongated display portion 14h emitted by the light decreases on the end side of the display portion 14h.
　図示は省略するが、前記凹所６を最深部６ａを点状に備える構成とし、この最深部６ａを中心とした円状の範囲を傾斜の大きい傾斜面２ａからなる第二面部２の中央側２ｂとし、この中央側２ｂを取り巻くリング状の範囲を傾斜の小さい傾斜面２ａからなる第二面部２の周辺側２ｃとするようにしても良い。このようにした場合、光軸Ｌａを中心とした全周方向において、図１１に示される効果が得られることとなる。 Although not shown in the drawings, the recess 6 is configured to have the deepest portion 6a in the form of a dot, and a circular range centered on the deepest portion 6a has a central side of the second surface portion 2 formed of the inclined surface 2a having a large inclination. 2b, and the ring-shaped range surrounding the central side 2b may be the peripheral side 2c of the second surface portion 2 formed of the inclined surface 2a having a small inclination. In this case, the effect shown in FIG. 11 is obtained in the entire circumferential direction centering on the optical axis La.
　図示の例では、かかる照明装置は、自動車の内装品を構成する抽斗装置Ｈに内蔵されて、この抽斗装置Ｈの一部をなすものとなっている。 In the illustrated example, such a lighting device is built in a drawer device H that constitutes an interior part of an automobile, and forms a part of the drawer device H.
　図示の例では、図２に示すように、前記抽斗装置Ｈは、横長の前面開口１３ａを備えた本体１３と、この本体１３に前後動可能に納められると共に前端部に本体１３内に押し込みきられた位置において前記前面開口１３ａを塞ぐ横長の蓋部１４ａを備えた抽斗体１４とを備えている。 In the illustrated example, as shown in FIG. 2, the drawer device H includes a main body 13 having a horizontally long front opening 13a, and is housed in the main body 13 so as to be movable back and forth, and pushed into the main body 13 at the front end. And a drawer body 14 having a horizontally long lid portion 14a that closes the front opening 13a.
　かかる抽斗装置Ｈは、典型的には、図３に示されるように、インストルメントパネル１５の内方に本体１３を納め、抽斗体１４が押し込みきられた位置で前記蓋部１４ａがインストルメントパネル１５の化粧面の一部をなすようにして利用される。 As shown in FIG. 3, such a drawer device H typically has a main body 13 placed inside an instrument panel 15, and the lid 14 a is positioned at the position where the drawer body 14 is fully pushed. It is used so as to form a part of the fifteen cosmetic surfaces.
　図示の例では、抽斗体１４は、蓋部１４ａの後方に枠状をなすように構成させており、本体１３から引き出された位置において、この枠内空間１４ｄに飲料容器Ｐを上方から納めることができるようになっている。また、前記枠内空間１４ｄには、抽斗体１４を本体１３から引き出したときに、この枠内空間１４ｄに納まった水平位置から前端部１４ｆを枠内空間１４ｄ下に位置させる展開位置まで回動される支持部材１４ｅが納められており、前記のように枠内空間１４ｄに納められた飲料容器Ｐの底部Ｐａは展開位置にある支持部材１４ｅの前端部１４ｆによって支持されるようになっている(図３)。すなわち、図示の例では、前記抽斗装置Ｈは、カップホルダーを構成するものとなっている。 In the illustrated example, the drawer body 14 is configured to form a frame shape behind the lid portion 14a, and the beverage container P is stored in the frame inner space 14d from above at a position pulled out from the main body 13. Can be done. Further, when the drawer body 14 is pulled out from the main body 13, the frame inner space 14d is rotated from a horizontal position stored in the frame inner space 14d to a deployment position where the front end portion 14f is positioned below the frame inner space 14d. The support member 14e is stored, and the bottom portion Pa of the beverage container P stored in the frame inner space 14d as described above is supported by the front end portion 14f of the support member 14e in the unfolded position. (Figure 3). That is, in the illustrated example, the drawer device H constitutes a cup holder.
　図示の例では、前記光源Ｌ（光源Ｌの具体的な図示は省略する。）は、図４に示すように、本体１３の前面開口１３ａの左右方向中程の位置であって、この前面開口１３ａの下方において前記本体１３に形成された貫通穴１３ｂを通じて、斜め上方に光を放射するように、本体１３の下面部の外側に備えられている。図中符号１３ｃはかかる光源Ｌの保持部である。 In the illustrated example, the light source L (specific illustration of the light source L is omitted) is a position in the middle of the front opening 13a of the main body 13 in the left-right direction, as shown in FIG. It is provided outside the lower surface portion of the main body 13 so as to emit light obliquely upward through a through hole 13b formed in the main body 13 below 13a. Reference numeral 13c in the figure denotes a holding unit for the light source L.
　前記抽斗装置Ｈを構成する抽斗体１４の前面、図示の例では、前記蓋部１４ａには、透光性部材１４ｊで閉塞された貫通穴１４ｉよりなる細長い表示部１４ｈが形成されている。前記導光体Ｇは、かかる蓋部１４ａの裏側に、その出射部５を前記表示部１４ｈの後方に位置させるようにして取り付けられている。図示の例では、抽斗体１４を本体１３内に押し込みきった位置において、前記光源Ｌの光が導光体Ｇの前記第一面部１側から入射され、導光体Ｇ内において拡散されて、かかる導光体Ｇの出射部５より前方に放射され、これにより抽斗体１４を本体１３内に押し込みきった位置において前記表示部１４ｈが発光されるようになっている（図４）。図示の例では、図２に示すように、抽斗体１４が引き出された位置では、前記支持部材１４ｅの後端側に形成された複数の小孔１４ｇ…１４ｇを通じて光源Ｌの光が漏れるようになっており、これにより、夜間などにおいてカップホルダーに対し飲料容器Ｐを保持させる位置が容易に視認できるようにしてある。 The elongate display part 14h which consists of the through-hole 14i obstruct | occluded by the translucent member 14j is formed in the front surface of the drawer body 14 which comprises the said drawer device H, and the example of illustration in the said cover part 14a. The light guide G is attached to the back side of the lid portion 14a so that the emitting portion 5 is positioned behind the display portion 14h. In the illustrated example, the light of the light source L is incident from the first surface portion 1 side of the light guide G and diffused in the light guide G at a position where the drawer body 14 is fully pushed into the main body 13. Thus, the display unit 14h emits light at a position where the drawer body 14 is fully pushed into the main body 13 (FIG. 4). In the illustrated example, as shown in FIG. 2, at the position where the drawer body 14 is pulled out, the light of the light source L leaks through a plurality of small holes 14g... 14g formed on the rear end side of the support member 14e. Thus, the position where the beverage container P is held with respect to the cup holder can be easily visually confirmed at night or the like.
　図示の例では、導光体Ｇは、図７に示すように、その幅方向に沿った二つの辺部７、８と、前記第二面部２との間に、前記幅方向に沿った長孔状をなす貫通孔１１が形成されており、この貫通孔１１より外側に位置される部分が弾性変形可能部１２となっている。図５に示すように、前記蓋部１４ａの裏側には、導光体Ｇの幅寸法と実質的に等しい距離を開けて設けられた上下保持壁１４ｂ、１４ｂと、導光体Ｇの長さ寸法よりもやや小さい距離を開けて設けられた左右保持壁１４ｃ、１４ｃとが形成されており、導光体Ｇは、前記弾性変形可能部１２を弾性変形させながら前記各保持壁１４ｂ…１４ｃに囲繞された空間内にはめ込まれて前記蓋部１４ａの裏側に取り付けられている。 In the illustrated example, the light guide G has a length along the width direction between the two side portions 7 and 8 along the width direction and the second surface portion 2, as shown in FIG. A through hole 11 having a hole shape is formed, and a portion located outside the through hole 11 is an elastically deformable portion 12. As shown in FIG. 5, on the back side of the lid portion 14 a, the upper and lower holding walls 14 b and 14 b provided at a distance substantially equal to the width dimension of the light guide G, and the length of the light guide G Left and right holding walls 14c, 14c provided at a distance slightly smaller than the dimensions are formed, and the light guide G is formed on each holding wall 14b ... 14c while elastically deforming the elastically deformable portion 12. It is inserted into the enclosed space and attached to the back side of the lid portion 14a.
　図１３に示されるように、前記第二面部２を構成する傾斜面２ａは、図１３において二点鎖線で示す傾斜した平面とせずに、凹曲面によって構成してあっても良い。また、前記第二面部２は、かかる凹曲面のみで形成しても、傾斜した平面とかかる凹曲面とを組み合わせて構成しても良い。 As shown in FIG. 13, the inclined surface 2a constituting the second surface portion 2 may be constituted by a concave curved surface instead of the inclined plane indicated by the two-dot chain line in FIG. Further, the second surface portion 2 may be formed only by such a concave curved surface, or may be configured by combining an inclined plane and such a concave curved surface.
　なお、当然のことながら、本発明は以上に説明した実施態様に限定されるものではなく、本発明の目的を達成し得るすべての実施態様を含むものである。 In addition, as a matter of course, the present invention is not limited to the embodiment described above, and includes all embodiments that can achieve the object of the present invention.
　Ｌ　光源
　Ｌａ　光軸
　Ｇ　導光体
　１　第一面部
　１ａ　平面
　２　第二面部
　２ａ　傾斜面
　なお、２０１４年１１月２８日に出願された日本国特願２０１４－２４１７０４号及び２０１４年１２月３日に出願された日本国特願２０１４－２４４８３８号の明細書、特許請求の範囲、図面及び要約書の全内容をここに引用し、本発明の明細書の開示として、取り入れるものである。 L light source La optical axis G light guide 1 first surface portion 1a plane 2 second surface portion 2a inclined surface Note that Japanese Patent Application No. 2014-241704 and December 3, 2014 filed on November 28, 2014 The entire contents of the specification, claims, drawings and abstract of Japanese Patent Application No. 2014-244838 filed in Japan are hereby incorporated by reference as the disclosure of the specification of the present invention.

Claims (5)

  1. 　光源と、この光源の前方に位置される導光体とを備えてなる照明装置であって、
    　前記導光体は、前記光源側に形成された第一面部と、この第一面部と反対の側に形成された第二面部とを備えており、
    　前記第一面部は平面により構成されており、
    　前記第二面部は前記光源の光軸に対して直角を除いた角度で交わる傾斜面により構成されており、
    　前記傾斜面と前記光軸とが前記光源側においてなす角度が、前記光軸上に位置される前記第二面部の中央側で小さく、前記第二面部の周辺側で大きくなるようにしてなる、照明装置。     A lighting device comprising a light source and a light guide positioned in front of the light source,
    The light guide includes a first surface portion formed on the light source side and a second surface portion formed on a side opposite to the first surface portion,
    The first surface portion is constituted by a plane,
    The second surface portion is constituted by an inclined surface that intersects at an angle other than a right angle with respect to the optical axis of the light source,
    The angle formed by the inclined surface and the optical axis on the light source side is small on the center side of the second surface portion located on the optical axis, and is increased on the peripheral side of the second surface portion. Lighting device.
  2. 　前記導光体は、長さと幅とを備え、前記第二面部の形成側において長さ方向に沿った一辺部を出射部とすると共に、この出射部と長さ方向に沿った他辺部との間に前記第二面部を備えてなる、請求項１に記載の照明装置。 The light guide has a length and a width, and on the formation side of the second surface portion, one side portion along the length direction serves as an emission portion, and the emission portion and the other side portion along the length direction The lighting device according to claim 1, wherein the second surface portion is provided between the two.
  3. 　前記第二面部における前記光軸を含んだ仮想の垂直面又は水平面を挟んだ一方側の形状に対し、他方側の形状が対称となるようにしてなる、請求項１又は請求項２に記載の照明装置。 The shape of the other side is made symmetrical with respect to the shape of one side across the virtual vertical surface or the horizontal plane including the optical axis in the second surface portion. Lighting device.
  4. 　前記第二面部を、前記光源の光軸に対する角度を異ならせる複数の傾斜面から構成させてなる、請求項１～請求項３のいずれか１項に記載の照明装置。 The lighting device according to any one of claims 1 to 3, wherein the second surface portion is formed of a plurality of inclined surfaces that differ in angle with respect to an optical axis of the light source.
  5. 　自動車の内装品を構成する抽斗装置であって、
    　請求項１～４のいずれか１項に記載の照明装置を内蔵すると共に、前記抽斗装置を構成する抽斗体の前面に形成された細長い表示部を前記導光体の出射部により発光させるようにしてなる、抽斗装置。     A drawing device that constitutes an interior part of an automobile,
    A lighting device according to any one of claims 1 to 4 is incorporated, and an elongated display portion formed on the front surface of the drawer body constituting the drawer device is caused to emit light by the emitting portion of the light guide body. A drawing device.
PCT/JP2015/082685 2014-11-28 2015-11-20 Illumination device and drawer device WO2016084737A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US15/529,768 US10149534B2 (en) 2014-11-28 2015-11-20 Luminaire and drawer device
CN201580064694.8A CN107000637B (en) 2014-11-28 2015-11-20 Lighting device and drawer
DE112015005382.4T DE112015005382T5 (en) 2014-11-28 2015-11-20 Light and drawer device
KR1020177015974A KR101917048B1 (en) 2014-11-28 2015-11-20 Illumination device and drawer device

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2014241704 2014-11-28
JP2014-241704 2014-11-28
JP2014244838A JP6246112B2 (en) 2014-11-28 2014-12-03 Lighting device and drawer device
JP2014-244838 2014-12-03

Publications (1)

Publication Number Publication Date
WO2016084737A1 true WO2016084737A1 (en) 2016-06-02

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020136027A1 (en) * 2001-03-26 2002-09-26 Siemens Airfield Solutions Elevated airfield runway and taxiway edge-lights utilizing light emitting diodes
JP2002307994A (en) * 2001-04-11 2002-10-23 Inoac Corp Container holder
JP2005005275A (en) * 2004-08-30 2005-01-06 Rohm Co Ltd Linear light source, light guide used therefor, and image reader provided with the linear light source using light guide thereof
JP2005251720A (en) * 2004-02-04 2005-09-15 Matsushita Electric Works Ltd Foot lamp
JP2012074192A (en) * 2010-09-28 2012-04-12 Brother Industries Ltd Electronic equipment

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020136027A1 (en) * 2001-03-26 2002-09-26 Siemens Airfield Solutions Elevated airfield runway and taxiway edge-lights utilizing light emitting diodes
JP2002307994A (en) * 2001-04-11 2002-10-23 Inoac Corp Container holder
JP2005251720A (en) * 2004-02-04 2005-09-15 Matsushita Electric Works Ltd Foot lamp
JP2005005275A (en) * 2004-08-30 2005-01-06 Rohm Co Ltd Linear light source, light guide used therefor, and image reader provided with the linear light source using light guide thereof
JP2012074192A (en) * 2010-09-28 2012-04-12 Brother Industries Ltd Electronic equipment

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