Interior lighting device

Abstract

To provide an in-vehicle light emitting device capable of optimizing visibility from the seat side. [Solution] The vehicle includes a light-emitting unit 2 located on the underside of a canopy 101 provided on a dashboard 100 inside the vehicle so as not to be visible from the seat side, a reflecting unit 3 located below the canopy 101 so as to be visible from the seat side, and an adjusting unit 10A that adjusts the position of the light-emitting unit 2 visible from the seat side via the reflecting unit 3. The adjusting unit 10A adjusts the inclination of the light-emitting unit 2.

Description

[Technical Field]

[0001] The present invention relates to an interior lighting device for a vehicle. [Background technology]

[0002] For example, there are interior light-emitting devices that emit light inside the vehicle, such as for ambient lighting or display screens inside the vehicle. Some interior light-emitting devices have a light-emitting unit located on the underside of a visor portion provided on the dashboard that can be seen from the seat via a reflector located below the visor portion to prevent reflection on the windshield (see, for example, Patent Documents 1 and 2 listed below).

[0003] Specifically, Patent Document 1 listed below discloses a display device that is attached to an object to be attached, and that includes an image display unit having a display surface that displays an image and a display back surface opposite the display surface, and a display case that covers the display back surface and is connected to the object to be attached, wherein the display case has a case back surface facing the opposite side to the display surface, a case base end that extends in the longitudinal direction of the case back surface and is connected to the object to be attached, and a case tip end that is provided on the opposite side of the case base end in the short direction of the case back surface and extends in the longitudinal direction, wherein a plurality of the image display units are arranged along the case tip end, and the display case has a reinforcing portion that reinforces the display case and is provided only on the case tip end side of the case tip end side and the case base end side so as to extend along the case tip end, and the reinforcing portion is in a state where it spans two adjacent image display units in the longitudinal direction.

[0004] On the other hand, the following Patent Document 2 discloses a display device to be mounted on a vehicle, the display device comprising: a display unit configured to irradiate display light representing an image to be displayed from a display screen; a reflecting unit formed in a plate shape and configured to reflect the display light irradiated from the display unit; a base having a concavely curved mounting surface; and an adhesive member disposed between the reflecting unit and the mounting surface and fixing the reflecting unit to the mounting surface, the reflecting unit being attached to the mounting surface along the concave mounting surface, and the mounting surface of the base being formed by connecting a plurality of sub-bases that can be separated along the reflection extension direction in which the reflecting unit extends. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Patent No. 7444112 [Patent Document 2] Patent No. 7456144 Summary of the Invention [Problem to be solved by the invention]

[0006] However, in the above-mentioned conventional in-vehicle lighting devices, the light-emitting section is positioned so that it cannot be seen from the seat side, and is visible through a reflecting section that is positioned so that it can be seen from the seat side. Therefore, visibility from the seat side can sometimes be poor depending on the height of the passenger's line of sight.

[0007] The present invention has been proposed in view of the above-mentioned conventional circumstances, and has an object to provide an in-vehicle light-emitting device that can optimize visibility from the seat side. [Means for solving the problem]

[0008] In order to achieve the above object, the present invention provides the following means. [1] A light-emitting unit located on the underside of a visor portion provided on the dashboard inside the vehicle and arranged so as not to be visible from the seat side; A reflector positioned below the eaves portion and arranged so as to be visible from the seat side; An in-vehicle light-emitting device comprising: an adjustment unit that adjusts the position of the light-emitting unit that is visible from the seat side through the reflection unit. [2] The in-vehicle light-emitting device according to [1], wherein the adjustment unit adjusts the inclination of the light-emitting unit. [3] The in-vehicle light emitting device according to [1], wherein the adjustment unit adjusts the inclination of the reflecting unit. [4] The in-vehicle light-emitting device according to [1], wherein the adjustment unit adjusts the position within the plane of the light-emitting unit of a light-emitting area that emits light within the plane. [5] The in-vehicle light-emitting device described in [1], wherein the reflecting portion has a reflecting surface that is inclined toward the front below the eaves portion, and the light emitted by the light-emitting portion is reflected toward the seat side by the reflecting surface. [6] The eaves portion is provided to extend in the width direction of the dashboard, The in-vehicle light-emitting device according to [1], wherein the light-emitting portion and the reflecting portion are provided across the entire width of the dashboard. [Effects of the Invention]

[0009] As described above, according to the present invention, an in-vehicle light emitting device is provided that can optimize visibility from the seat side. [Brief explanation of the drawings]

[0010] [Figure 1] 1 is a perspective view showing a configuration of an interior light-emitting device according to an embodiment of the present invention; [Figure 2] 2 is a cross-sectional view of the interior light emitting device according to the first embodiment of the present invention taken along line AA in FIG. 1. FIG. [Figure 3] 2 is a cross-sectional view of the interior light emitting device according to the second embodiment of the present invention taken along line AA in FIG. 1. FIG. [Figure 4] 4 is a cross-sectional view showing a modified example of the in-vehicle light emitting device shown in FIG. [Figure 5]2 is a cross-sectional view of the interior light emitting device according to the third embodiment of the present invention taken along the line AA in FIG. 1. FIG. [Figure 6] 6 is a cross-sectional view showing a state in which the position of the light emitting area of ​​the vehicle interior light emitting device shown in FIG. 5 is changed. DETAILED DESCRIPTION OF THE INVENTION

[0011] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the drawings used in the following description, the dimensions of the components may be shown at different scales to make them easier to see, and the dimensional ratios of the components may not necessarily be the same as in reality.

[0012] (First embodiment) As a first embodiment of the present invention, an in-vehicle light emitting device 1A shown in, for example, FIGS. 1 and 2 will be described.

[0013] 1 is a perspective view showing the configuration of the interior light emitting device 1A. FIG. 2 is a cross-sectional view of the interior light emitting device 1A taken along line AA shown in FIG.

[0014] In addition, in the drawings shown below, an XYZ Cartesian coordinate system is set up, with the X-axis direction representing the fore-and-aft direction (length direction) of vehicle B, the Y-axis direction representing the left-and-right direction (width direction) of vehicle B, and the Z-axis direction representing the up-and-down direction (height direction) of vehicle B.

[0015] As shown in Figures 1 and 2, the in-vehicle light-emitting device 1A of this embodiment comprises a light-emitting unit 2 located on the underside of a canopy portion 101 provided on a dashboard 100 inside the vehicle, and a reflecting unit 3 located below the canopy portion 101, and the light-emitting unit 2, which is arranged so that it cannot be seen from the seat side, can be seen via the reflecting unit 3, which is arranged so that it can be seen from the seat side.

[0016] Specifically, the eaves portion 101 is installed on the upper part of the dashboard 100 and protrudes toward the seat side. The eaves portion 101 is also provided to extend in the width direction of the dashboard 100. As a result, a concave space K is provided between the upper part of the dashboard 100 and the lower part of the eaves portion 101. The light emitting unit 2 and the reflecting unit 3 are provided across the entire width direction of the dashboard 100.

[0017] The light-emitting unit 2 has a plurality of light sources 4 and a circuit board 5 on the underside of which the plurality of light sources 4 are mounted, and has a structure in which the circuit board 5 is disposed inside a recess 101a provided on the underside of the eaves portion 101. In this embodiment, the plurality of light sources 4 are provided lined up in the width direction of the dashboard 100 on the underside of the circuit board 5 extending in the width direction of the dashboard 100.

[0018] The plurality of light sources 4 are made up of light emitting elements such as LEDs, are provided on the same surface of the same circuit board 5, and emit light L in the same direction (downward in this embodiment).

[0019] The light emitting unit 2 can be configured to include multiple light sources 4 that emit light L of the same wavelength (color), or multiple light sources 4 that emit light L of different wavelengths. For example, the light emitting unit 2 can be configured to include a red light source that emits red light, a green light source that emits green light, and a blue light source that emits blue light, and emit light L of a variable color tone (emission color) that corresponds to the proportion of each color light emitted from each of these color light sources.

[0020] In addition to the LEDs described above, light bulbs and surface-emitting devices such as organic EL elements can be used for the light source 4. The light-emitting unit 2 may be a display that displays an image by emitting light, such as a liquid crystal display or an organic EL display.

[0021] The reflecting unit 3 has a reflecting surface 3a that is inclined forward below the eaves portion 101, and reflects the light L from the light emitting unit 2 toward the seat side by the reflecting surface 3a. The reflecting surface 3a is provided to extend in the width direction of the dashboard 100.

[0022] The reflecting portion 3 may be made of a reflecting material provided with a reflecting film such as an aluminum vapor deposition film, or a reflecting material having light diffusing properties such as a white glass epoxy resin.

[0023] In the in-vehicle lighting device 1A of this embodiment, the light L from the above-mentioned light-emitting unit 2 is reflected by the reflective surface 3a toward the seat side, so that the entire reflective surface 3a can be illuminated as ambient lighting inside the vehicle, and the light can be visible to passengers in the seats.

[0024] Furthermore, in the interior light emitting device 1A of this embodiment, the canopy portion 101 prevents the device from being affected by external light incident through the windshield G of the vehicle B, and reflections on the windshield G can also be prevented.

[0025] The in-vehicle light emitting device 1A of this embodiment includes an adjustment unit 10A that adjusts the position of the light emitting unit 2 that is visible from the seat side through the reflecting unit 3.

[0026] Specifically, this adjustment unit 10A is an adjustment mechanism for adjusting the tilt of the light-emitting unit 2, and has a worm gear 11, an adjustment dial 12, and at least one or more (two in this embodiment) universal joints 13.

[0027] The worm gear 11 is screwed into a screw hole 5a provided on one end side of the circuit board 5 in the front-rear direction, and penetrates the circuit board 5 in the thickness direction, with both ends of the worm gear 11 journaled on the underside of the eaves portion 101 and the upper surface of the dashboard 100, respectively. The other end side of the circuit board 5 in the front-rear direction is attached via a bushing 14 to the inside of a groove 101b provided on the underside of the tip side of the eaves portion 101.

[0028] The adjustment dial 12 is located on the lower end side of the reflector 3 and is journaled on the upper surface of the dashboard 100. The lower end side of the worm gear 11 and the lower end side of the adjustment dial 12 are connected via two universal joints 13.

[0029] In the adjustment unit 10A, by rotating the adjustment dial 12, the worm gear 11 rotates via the universal joint 13, and one end of the circuit board 5 in the front-to-back direction moves up and down as this worm gear 11 threads into the screw hole 5a, making it possible to adjust the inclination of the circuit board 5 with the other end of the circuit board 5 in the front-to-back direction as a fulcrum.

[0030] As a result, in the in-car lighting device 1A of this embodiment, the inclination of the light-emitting unit 2 is adjusted using the above-mentioned adjustment unit 10A, and the position of the light-emitting unit 2 that is visible from the seat side through this reflecting unit 3, i.e., the direction of the light L reflected by the reflecting surface 3a, is adjusted in the vertical direction, thereby making it possible to optimize visibility from the seat side to match the height of the passenger's eye level.

[0031] (Second embodiment) Next, as a second embodiment of the present invention, an in-vehicle light emitting device 1B shown in, for example, FIGS. 3 and 4 will be described.

[0032] Fig. 3 is a cross-sectional view of the interior light emitting device 1B taken along line AA in Fig. 1. Fig. 4 is a cross-sectional view showing a modified example of the interior light emitting device 1B. In the following description, the same parts as those in the interior light emitting device 1A will not be described and will be denoted by the same reference numerals in the drawings.

[0033] As shown in FIG. 3, the in-vehicle light emitting device 1B of this embodiment includes an adjustment section 10B that adjusts the position of the light emitting section 2 that is visible from the seat side through the reflecting section 3.

[0034] Specifically, the adjustment unit 10B is an adjustment mechanism for adjusting the tilt of the reflecting unit 3, and supports the upper end side of the reflecting unit 3 via a hinge unit 15 so that it can rotate freely.

[0035] In the adjustment unit 10B, the tilt of the reflecting surface 3a can be adjusted by rotating the reflecting unit 3 up and down.

[0036] One end of the circuit board 5 in the front-rear direction is attached to the underside of the canopy portion 101 via a bush 14, similar to the other end.

[0037] As a result, in the in-car light-emitting device 1B of this embodiment, the inclination of the reflecting part 3 is adjusted by the above-mentioned adjustment part 10B, and the position of the light-emitting part 2 visible from the seat side through this reflecting part 3, i.e., the direction of the light L reflected by the reflecting surface 3a, is adjusted in the vertical direction, thereby making it possible to optimize visibility from the seat side to match the height of the passenger's eye level.

[0038] In addition, the in-vehicle lighting device 1B of this embodiment is not limited to a configuration in which the upper end side of the reflecting part 3 is rotatably supported via the above-mentioned hinge part 15, but may also be a configuration in which the lower end side of the reflecting part 3 is rotatably supported via the hinge part 15, as shown in Figure 4.

[0039] (Third embodiment) Next, as a third embodiment of the present invention, an in-vehicle light emitting device 1C shown in, for example, FIGS. 5 and 6 will be described.

[0040] Fig. 5 is a cross-sectional view of the interior light emitting device 1C taken along line AA in Fig. 1. Fig. 6 is a cross-sectional view showing a state in which the position of the light emitting area E of the interior light emitting device 1C has been changed. In the following description, the same parts as those in the interior light emitting device 1A will not be described and will be denoted by the same reference numerals in the drawings.

[0041] As shown in FIGS. 5 and 6, the in-vehicle light emitting device 1C of this embodiment includes an adjustment section 10C that adjusts the position of the light emitting section 2 that is visible from the seat side through the reflecting section 3.

[0042] Specifically, adjustment unit 10C moves the position within the surface of light-emitting unit 2 of light-emitting area E, which emits light within the surface of light-emitting unit 2, in the front-to-back direction of light-emitting unit 2. The above-mentioned display may also be used for light-emitting unit 2. In this case, the position of light-emitting area E, which is illuminated and displayed by the display, is moved in the front-to-back direction of the display.

[0043] As a result, in the in-car lighting device 1C of this embodiment, the position of the lighting area E that can be seen from the seat side through the reflecting unit 3, i.e., the position of the lighting area E displayed on the reflecting surface 3a, can be adjusted in the vertical direction by the above-mentioned adjustment unit 10C, thereby optimizing visibility from the seat side to match the height of the passenger's eye level.

[0044] The present invention is not necessarily limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention. For example, the above-described interior light emitting devices 1A, 1B, and 1C are configured to be provided on the dashboard 100 side inside the vehicle, but in addition to this configuration, they may also be configured to be added to the upper door trim side inside the vehicle.Furthermore, they may also be configured to be provided on the ceiling side inside the vehicle.

[0045] In addition, in the above-described interior light-emitting devices 1A, 1B, and 1C, the adjustment units 10A, 10B, and 10C are configured to be manually adjusted, but the adjustment units 10A, 10B, and 10C may also be electrically adjusted. Furthermore, the line of sight of the passengers may be detected by an in-vehicle camera or the like, and the adjustment may be automatically performed via the adjustment units 10A, 10B, and 10C. [Explanation of symbols]

[0046] REFERENCE SIGNS LIST 1A, 1B, 1C... In-vehicle light emitting device 2... Light emitting portion 3... Reflecting portion 4... Light source 5... Circuit board 10A, 10B, 10C... Adjusting portion 100... Dashboard 101... Canopy portion

Claims

1. a light-emitting unit that is positioned on the underside of a visor portion provided on a dashboard inside the vehicle so as not to be visible from the seat side; A reflector positioned below the eaves portion and arranged so as to be visible from the seat side; An in-vehicle light-emitting device comprising: an adjustment unit that adjusts the position of the light-emitting unit that is visible from the seat side through the reflection unit.

2. The vehicle interior light emitting device according to claim 1 , wherein the adjustment unit adjusts the inclination of the light emitting unit.

3. The vehicle interior light emitting device according to claim 1 , wherein the adjustment unit adjusts the inclination of the reflecting unit.

4. The vehicle interior light emitting device according to claim 1 , wherein the adjustment unit adjusts a position within a plane of a light emitting area that emits light within a plane of the light emitting unit.

5. The vehicle interior light-emitting device according to claim 1, wherein the reflecting portion has a reflecting surface that is inclined forward below the eaves portion, and the light emitted by the light-emitting portion is reflected toward the seat by the reflecting surface.

6. The eaves portion is provided to extend in the width direction of the dashboard, The vehicle interior light emitting device according to claim 1 , wherein the light emitting portion and the reflecting portion are provided across the entire width of the dashboard.

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