JP2014149986A - Vehicular lighting fixture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve functionality.SOLUTION: A vehicular lighting fixture includes: a lighting fixture outer case 4 configured by a lamp housing 2 and a cover 3 covering the opening of the lamp housing; a first light source body 7 arranged in the lighting fixture outer case, and having planar light emitting bodies 8, 8,... as light sources; a second light source body 12 arranged in the lighting fixture outer case, and having planar light emitting bodies 13, 13,... as light sources. The planar light emitting bodies of the first light source body and the planar light emitting bodies of the second light source body are arranged so as to be directed in different directions. Light beams are emitted from the planar light emitting bodies of the first light source body and the planar light emitting bodies of the second light source body in different directions, and thus the vehicular lighting fixture is used as a versatile lamp having a plurality of functions, and the functionality of the vehicular lighting fixture is improved.

Description

  The present invention relates to a technical field of a vehicular lamp using a planar light emitter as a light source.

JP 2011-150887 A

  Some vehicular lamps have a plurality of planar light emitters disposed as light sources inside a lamp outer casing formed by a cover and a lamp housing (see, for example, FIGS. 7 to 9 in Patent Document 1). ).

  In the vehicular lamp described in Patent Document 1, a planar light emitter having an organic EL (Electro Luminescence) layer that emits light is used, and a plurality of planar light emitters are arranged on a base. A reflector is disposed inside the lamp outer casing, and light emitted from each planar light emitter is reflected by the reflector, passes through the cover, and is irradiated to the outside.

  However, in the vehicular lamp described in Patent Literature 1, a plurality of planar light emitters are arranged on the base, and the light emission directions from the plurality of planar light emitters are the same direction. It does not have high functionality.

  Therefore, the present invention aims to overcome the above-described problems and improve functionality.

  1stly, the vehicle lamp concerning this invention is arrange | positioned in the inside of the lamp outer casing comprised by the lamp housing which has an opening in at least one side, and the cover which covers the said opening of the said lamp housing, and the said lamp outer casing A first light source body having a planar light-emitting body as a light source; and a second light source body disposed inside the lamp casing and having a planar light-emitting body as a light source, the planar shape of the first light source body The light emitter and the planar light emitter of the second light source body are arranged in different directions.

  Thereby, light is emitted in different directions from the planar light emitter of the first light source body and the planar light emitter of the second light source body.

  Secondly, in the vehicle lamp according to the present invention described above, a plurality of planar light emitters of the first light source body are provided, and the number or lighting of the plurality of planar light emitters of the first light source body is provided. It is desirable to set different light emission states by changing at least one of the locations.

  Thereby, different functions are exhibited according to different light emission states in the planar light emitter of the first light source body.

  Thirdly, in the vehicle lamp according to the present invention described above, a plurality of planar light emitters of the second light source body are provided, and the plurality of planar light emitters of the second light source body are spaced apart in the circumferential direction. It is desirable to arrange them as follows.

  Thereby, the arrangement space of the second light source body is reduced.

  Fourthly, in the vehicle lamp according to the present invention described above, it is desirable that the first light source body and the second light source body are arranged apart from each other in the front-rear direction.

  As a result, the second light source body is disposed inside the first light source body as viewed from the front-rear direction.

  According to the present invention, since light is emitted in different directions from the planar light emitter of the first light source body and the planar light emitter of the second light source body, the functionality can be improved.

2 to 8 show an embodiment of a vehicular lamp according to the present invention, and this figure is a schematic sectional view. It is a perspective view shown in the state where a cover was omitted. It is a schematic back view shown in the state which omitted the cover and the 2nd light source body. It is a general | schematic expanded sectional view which shows the structure of a planar light-emitting body. FIGS. 6 to 8 show an example of the light emission state (irradiation state) by turning on / off control, and this figure is a schematic rear view showing an example in which a part of the first light source body is turned on. It is. It is a schematic rear view which shows another example in which a part of 1st light source body is lighted. It is a schematic rear view which shows another example in which a part of 1st light source body is lighted. It is a schematic rear view which shows the example in which the 2nd light source body is lighted.

  EMBODIMENT OF THE INVENTION Below, the form for implementing the vehicle lamp of this invention is demonstrated with reference to an accompanying drawing.

  In the embodiment shown below, the vehicular lamp of the present invention is applied to a rear combination lamp. The scope of application of the present invention is not limited to the rear combination lamp, and is widely applied to various vehicle lamps such as a head lamp, a clearance lamp, a turn signal lamp, a stop lamp, a tail lamp, a daytime running lamp, and a fog lamp. be able to.

  The vehicular lamp 1 is mounted and arranged at both left and right end portions of the rear end portion of the vehicle body.

  The vehicular lamp 1 includes a lamp housing 2 having a recess opened rearward and a cover 3 that closes the opening of the lamp housing 2 and is formed in, for example, a horizontally long shape (see FIGS. 1 and 2). The lamp housing 2 and the cover 3 constitute a lamp outer casing 4, and the inner space of the lamp outer casing 4 is formed as a lamp chamber 5.

  A base body 6 is attached to the rear surface of the front portion 2 a of the lamp housing 2. A light source drive circuit (not shown) is disposed inside the base body 6.

  A first light source body 7 is disposed on the rear surface of the base body 6, and the first light source body 7 is constituted by a plurality of planar light-emitting bodies 8, 8,... (See FIGS. 1 to 3). . The planar light emitter 8 is flexible and is formed by sequentially laminating a back electrode layer 8a, an organic light emitting layer 8b, a transparent electrode layer 8c, and a surface protective layer 8d (see FIG. 4). A metal material is used as the back electrode layer 8a, an organic EL (Electro Luminescence) that emits light is used as the organic light emitting layer 8b, and, for example, ITO (Indium Tin Oxide) is used as the transparent electrode layer 8c. A transparent resin material is used as the surface protective layer 8d.

  The planar light emitters 8, 8,... Are arranged in a matrix on the base body 6, for example, vertically and horizontally (see FIGS. 2 and 3). The arrangement of the planar light emitters 8, 8,... Is not limited to a matrix arrangement, and may be arranged in an oblique direction, for example, or irregularly arranged. May be.

  In the first light source body 7, planar light emitters 8, 8,... Are arranged in, for example, five rows in the vertical direction.

  When a voltage is applied from the light source driving circuit to the back electrode layer 8a and the transparent electrode layer 8c in the planar light emitter 8, light diffused from the organic light emitting layer 8b at a predetermined angle is emitted rearward and the cover 3 passes through the cover 3. The light is transmitted and irradiated to the outside.

  The lamp chamber 5 is provided with projecting portions 9, 9, 9 protruding rearward from the rear surface of the base body 6 so as to be separated from each other in the left and right directions (see FIGS. 1 and 2). The projecting portion 9 is formed of a transparent resin material such as acrylic, and includes a connecting portion 10 that is continuous with the base body 6 and an attachment portion 11 that is positioned on the rear side of the connecting portion 10.

  The connecting portion 10 is formed in a shaft shape extending in the front-rear direction. The connecting portion 10 is positioned between the planar light emitters 8, 8,.

  The mounting portion 11 has an outer shape larger than that of the connecting portion 10 and is formed in a point-symmetric shape with the connecting portion 10 as the center. The mounting portion 11 is a part of the three rows of planar light emitters 8, 8,... Positioned in the middle in the vertical direction among the planar light emitters 8, 8. It arrange | positions in the position shielded from back (refer FIG. 3).

  The mounting portion 11 has mounting protrusions 11a, 11a,... Provided at equal intervals in the circumferential direction, and the portions between the mounting protrusions 11a, 11a,. 11b,... (See FIGS. 1 and 2). The mounting protrusions 11a, 11a,... Are provided in a state extending in the radial direction with the connecting portion 10 as the center.

  Second light source bodies 12, 12, and 12 are attached to the attachment portions 11, 11, and 11 of the projecting portions 9, 9, and 9, respectively. The 2nd light source body 12 is comprised by the some planar light-emitting body 13, 13, .... The planar light emitter 13 is formed by sequentially laminating a back electrode layer 13a, an organic light emitting layer 13b, a transparent electrode layer 13c, and a surface protective layer 13d (see FIG. 4). The back electrode layer 13a is made of a metal material, the organic light emitting layer 13b is made of an organic EL that emits light, the transparent electrode layer 13c is made of, for example, ITO, and the surface protective layer 13d is made of a transparent resin. Materials or glass materials are used.

  The planar light emitters 13, 13,... Are attached to the attachment protrusions 11a, 11a,... Of the attachment portion 11, respectively, and the thickness direction is substantially aligned with the circumferential direction. . The planar light-emitting body 13 is attached to the attachment protrusion 11a in a state where it is tilted so that the positions of the front end portion and the rear end portion are different in the circumferential direction.

  When a voltage is applied to the back electrode layer 13a and the transparent electrode layer 13c from the light source driving circuit in the planar light emitter 13, light diffused from the organic light emitting layer 13b at a predetermined angle is emitted backward and the cover 3 is passed through. The light is transmitted and irradiated to the outside. In addition, the connection line between the light source drive circuit arrange | positioned inside the base body 6 and the planar light-emitting bodies 13, 13, ... is arrange | positioned inside the protrusion part 9. FIG.

  In the vehicular lamp 1 configured as described above, on / off control is performed in accordance with the function and application. Below, the example about the emission state (irradiation state) of the light by the lighting-off control performed in the vehicle lamp 1 is demonstrated (refer FIG. 5 thru | or FIG. 8). In FIGS. 5 to 8, the places marked with pear are the light emitting places (lighting places).

  About the 1st light source body 7, light can be radiate | emitted from the planar light-emitting bodies 8, 8, ... of 1 line up and down, for example, and it can use as a turn signal lamp (refer FIG. 5). At this time, the planar light emitters 8, 8,... May be blinked. Further, at this time, lighting and extinguishing are sequentially repeated in the left-right direction so that the light can be visually recognized so as to flow in the left-right direction.

  In addition, the first light source body 7 can be used as a stop lamp by emitting light from, for example, three rows of planar light emitters 8, 8,... Positioned in the middle in the vertical direction (FIG. 6). reference). At this time, part of the light emitted from the planar light emitters 8, 8,... Is transmitted through the light transmitting portions 11 b, 11 b,. Therefore, the light transmitting portions 11b, 11b,... Are visually recognized as if they are emitting light, and the design can be improved.

  In this case, the light transmitting portions 11b, 11b,... Are changed by changing the light emission position and light emission intensity of the planar light emitters 8, 8,... According to how the brake is depressed. In the pseudo light emission, it can be visually recognized so that the ripples of the circular pattern spread, and the design can be further improved.

  Further, for the first light source body 7, for example, light is emitted from a part of the planar light emitters 8, 8,... And used as a stop lamp, and the planar light emitters 8, 8,. Light can be emitted from the other part of the lamp and used as a lamp for other purposes, for example, a rear fog lamp (see FIG. 7). In this case, for example, the planar light emitters 8, 8,... Arranged on one side in the left-right direction are used as stop lamps, and the planar light emitter 8, arranged on the other side in the left-right direction, 8, are used as rear fog lamps.

  On the other hand, the second light source bodies 12, 12, and 12 can be used as tail lamps by emitting light from all or part of the planar light emitters 13, 13,... (See FIG. 8). It is also possible to cause the planar light emitters 13, 13,... To emit light and use as a stop lamp, or to blink the planar light emitters 13, 13,.

  In addition, about the planar light-emitting bodies 8 and 13, the luminescent color is arbitrary, For example, you may use the thing of single colors, such as red and black, and a full color display is formed and various lights are radiate | emitted. You may do it. In these cases, it is also possible to arbitrarily set the emission color for each of the planar light emitters 8, 8,. For example, red light is emitted from the planar light emitters 8, 8,... Used as a tail lamp, and amber light is emitted from the planar light emitters 8, 8,. May be emitted.

  Further, the cover 3 may be formed in a colored color such as red or amber color so that the light can be visually recognized as being emitted in a colored state when being irradiated to the outside through the cover 3. In this case, it is also possible to form each part of the cover 3 in a different color so that the color of the light changes according to the position of the light transmitted through the cover 3.

  Furthermore, you may form a reflective surface by metal vapor deposition in the one outer surface side in the thickness direction of the planar light-emitting bodies 8 and 13. FIG. By forming a reflective surface on the planar light emitters 8 and 13, the deposited surface is visually recognized as a mirror surface when not lit, and the emitted light is reflected by the deposited surface when lit and ensures high luminous efficiency. Can do.

  As described above, the vehicular lamp 1 has the first light source body 7 having the planar light emitters 8, 8,... And the second light source body 13, 13,. .. And the planar light emitters 8, 8,... And the planar light emitters 13, 13,.

  Therefore, light is emitted from the planar light emitters 8, 8,... And the planar light emitters 13, 13,... In different directions, and the vehicular lamp 1 is used as a lamp for other purposes having a plurality of functions. It can be used, and functionality can be improved.

  Moreover, about planar light-emitting body 8,8, ... and planar light-emitting body 13,13, ..., the designability can be improved by changing the light emission position and emission state.

  Furthermore, since the planar light emitters 8, 8,... And the planar light emitters 13, 13,... Are used as light sources, the vehicle lamp 1 can be made thinner accordingly. Further, it is not necessary to provide a diffusing lens as a separate member for diffusing the emitted light, and the vehicle lamp 1 can be downsized and the number of parts can be reduced.

  Further, in the vehicular lamp 1, the first light source body 7 is provided with a plurality of planar light emitters 8, 8,..., And the number of lighting of the planar light emitters 8, 8,. Further, since different light emission states are set by changing at least one of the lighting locations, it is possible to further improve the functionality of the vehicular lamp 1 while ensuring the simplification of the configuration.

  On the other hand, in the 2nd light source body 12, since several planar light-emitting bodies 13 and 13 are provided and the planar light-emitting bodies 13, 13, ... are arrange | positioned spaced apart in the circumferential direction, arrangement | positioning space It is possible to further improve the functionality of the vehicular lamp 1 while ensuring miniaturization through effective use of the vehicular lamp.

  Moreover, since the planar light emitters 13, 13,... Are attached to the attachment portion 11 of the projecting portion 9 formed of a transparent material, the planar light emitters 13, 13,. It is visually recognized that it is arranged in a state of floating in the space, and the design can be further improved.

  In addition, since the first light source body 7 and the second light source bodies 12, 12, and 12 are spaced apart from each other in the front-rear direction, it is possible to reduce the size of the vehicular lamp 1 in the vertical direction and the horizontal direction. .

  DESCRIPTION OF SYMBOLS 1 ... Vehicle lamp, 2 ... Lamp housing, 3 ... Cover, 4 ... Lamp outer casing, 7 ... 1st light source body, 8 ... Planar light-emitting body, 12 ... 2nd light source body, 13 ... Planar light-emitting body

Claims (4)

A lamp outer casing constituted by a lamp housing having an opening in at least one and a cover covering the opening of the lamp housing;
A first light source body disposed inside the lamp outer casing and having a planar light emitter as a light source;
A second light source body disposed inside the lamp outer casing and having a planar light emitter as a light source;
A vehicular lamp in which the planar light emitter of the first light source body and the planar light emitter of the second light source body are arranged in different directions. A plurality of planar light emitters of the first light source body;
The vehicular lamp according to claim 1, wherein different lighting states are set by changing at least one of the number of lighting or lighting locations of the plurality of planar light emitters of the first light source body. A plurality of planar light emitters of the second light source body are provided,
The vehicular lamp according to claim 1 or 2, wherein a plurality of planar light emitters of the second light source body are arranged apart from each other in the circumferential direction. The vehicular lamp according to claim 1, 2 or 3, wherein the first light source body and the second light source body are disposed apart from each other in the front-rear direction.

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