JP5252727B2 - Car interior lighting system - Google Patents

Description

  The present invention relates to a vehicle interior lighting device, and relates to a lighting device attached to a sun visor installed inside a vehicle.

  In automobiles, sun visors are installed in the vicinity of the front window (windshield) to protect the sun while driving. Attempts to install vanity mirrors (cosmetic mirrors) on such sun visors are widespread. Has been made.

  The vanity mirror is installed on the surface of the sun visor opposite to the front wind side when using the sun visor, so that the person sitting in the seat in the car can check the vanity mirror's makeup and hairstyle ( It can be used for various purposes such as correction.

  By the way, in order to make it easier to remake using a vanity mirror, a technique has been proposed in which an illumination device for illuminating a person using the vanity mirror is provided in the vehicle interior (for example, Patent Document 1).

  Moreover, the lighting fixture (for example, patent document 2) integrated in the sun visor is also proposed.

JP-A-8-080735 JP 2008-222209 A

In Patent Document 2, a light source is provided in the vicinity of the sun visor, and the face appearance is improved by irradiating the face with light from the light source, thereby making it possible to make the makeup act comfortable. However, when makeup is performed using a mirror in the sun visor, glare (glare) is given to the user if the output of the light source in the vicinity thereof is large. On the other hand, if an attempt is made to suppress the output of the light source to prevent glare, sufficient illuminance cannot be obtained when a hand such as a map is illuminated.
However, in the lighting apparatus disclosed in Patent Document 2, the output of the light source when using a mirror in the sun visor and when looking at the hand may not be appropriately controlled.

  The distance between the light source when applying makeup using a mirror installed in the sun visor and the face that is the object to be irradiated, and the distance between the light source when looking at the hand with map observation etc. and the hand that is the object to be irradiated In comparison, the distance when applying makeup is clearly shorter than the distance when illuminating the hand. Furthermore, the illuminance required for applying makeup and reading the material at hand does not change significantly. Therefore, there is no problem even if the output of the light source when applying makeup is lower than the output when illuminating the hand. In addition, since the distance between the mirror and the light source in the sun visor is generally close, if the output of the light source is high, the user feels glare. Therefore, it is desirable to reduce the output of the light source during makeup.

  As described above, when applying makeup using the mirror installed in the sun visor, there is a problem that if the output of the light source is large, the glare will make you feel uncomfortable and glare will not make the makeup act well. .

  The present invention has been made in view of the above circumstances, and it is possible to obtain a sufficient amount of light even when the user looks at his / her hand without feeling glare even when using a mirror in the sun visor. An object is to provide a lighting device.

Therefore, in the present invention, when applying makeup using a mirror installed in the sun visor, if the output of the light source is large, the glare will cause discomfort and the makeup action will not be successful due to glare. When using a mirror, pay attention to the fact that the face does not appear in the mirror unless there is a line of sight on the mirror's approximate normal. Try to reduce glare.
That is, since glare is determined by the amount of light in the line-of-sight direction, the glare is not felt with light other than the line-of-sight direction. Therefore, the output in the line-of-sight direction of the light source installed near the mirror is reduced, and the light is increased in the other directions.

That is, the present invention provides a vehicle interior sun visor that is disposed so as to be rotatable with an arbitrary opening angle with respect to the vehicle interior ceiling and has a mirror surface portion that can be accommodated so as to be in contact with the vehicle interior ceiling, and the vehicle interior sun visor. A light emitting portion attached to a surface facing the vehicle interior ceiling, wherein the light emitting portion is arranged with respect to a side adjacent to the vehicle interior ceiling side and a side opposite thereto. The first region located on the side closer to the vehicle interior ceiling side than the virtual boundary line substantially parallel to the vehicle, so that the output is lower than the second region closer to the seat side than the boundary line. Configured.
With this configuration, an imaginary line passing through a point that is substantially parallel to the side close to the vehicle interior ceiling side and the side facing this side and that equally divides these distances, is in the ceiling side distant region. Since the light source emits light at a relatively higher output than the light source in the proximity area on the ceiling side, when looking at the vanity mirror during makeup, the light from the high output light source is directly in the field of view. It can be prevented from entering, and the glare can be reduced. On the other hand, since the light source in the ceiling side distant region, that is, the sheet side, has a high output, the hand can be irradiated more efficiently when the hand is viewed.

  In the illumination device according to the present invention, the virtual boundary line equally divides a distance between a side close to the vehicle interior ceiling side and a side facing the side.

According to the present invention, in the illumination device, the light emitting unit includes a plurality of light sources disposed so as to surround the mirror surface portion, and includes an output control unit that controls outputs of the plurality of light sources. ing.
According to this configuration, a plurality of light sources are arranged around the mirror in the sun visor so that it can be accommodated in the sun visor, such as an LED, an EL, a light bulb, and a fluorescent lamp. A part thereof is irradiated so as to have an optical axis below the normal line of the mirror, and the ratio of the output is made larger at the lower side than above. For example, although the ratio of the upper and lower output is controlled by the difference in the number of grains, the upper and lower outputs may be controlled by changing the output of the light source itself with the same number of grains. As described above, glare is not felt during makeup, and appropriate brightness can be obtained during makeup. With this configuration, glare is not felt during makeup, and appropriate brightness can be obtained during makeup.

According to the present invention, in the illumination device, the light-emitting unit includes a plurality of light sources disposed so as to surround the mirror surface part, and an optical unit that is attached in the vicinity of the light source and controls output from the light source. Including a member.
With this configuration, by controlling an optical member such as a condensing lens, the upper and lower outputs can be controlled, glare is not felt during makeup, and appropriate brightness can be obtained during makeup. .

In the illumination device according to the aspect of the invention, the light-emitting unit includes an optical member that includes a pair of light sources disposed so as to straddle a virtual boundary line, is attached in the vicinity of the light source, and controls the output of the light source. Including the above.
According to this configuration, even with a pair of light sources, the optical axis can be changed and the amount of light can be adjusted by the control of the optical member. Appropriate brightness can be obtained, and a good amount of light can be provided as local illumination.

  According to the above configuration, glare is not felt during makeup, and appropriate brightness can be obtained during makeup or reading.

Explanatory drawing which shows the illuminating device of Embodiment 1 of this invention, (a) is a figure which shows the time of makeup | decoration, (b) is a figure which shows the state which is looking at the map etc. in the vehicle Explanatory drawing which shows light quantity distribution of the illuminating device in the same as the above The schematic explanatory drawing of the illuminating device same as the above, (a) is a figure which shows the state which closed the cover, (b) is the figure which shows the state which opened the cover Schematic explanatory diagram of the installation state of the lighting device in the same as above Block diagram of lighting apparatus according to Embodiment 1 of the present invention Explanatory drawing which shows the illuminating device of Embodiment 2 of this invention. Explanatory drawing which shows the illuminating device of Embodiment 3 of this invention. The figure which shows light quantity distribution in the illuminating device of Embodiment 3 of this invention. The figure which shows light quantity distribution in the illuminating device of Embodiment 4 of this invention. The figure which shows light quantity distribution in the illuminating device of Embodiment 5 of this invention.

(Embodiment 1)
Hereinafter, the vehicle interior lighting device of the present embodiment will be described. FIG. 1 shows a usage pattern of the vehicle interior lighting device of the present embodiment. FIG. 1A is a diagram showing shaving, hairdressing or makeup using a vanity mirror (mirror) 4 installed in the sun visor, and FIG. 1B is a diagram showing a state where a map is viewed in a vehicle. In the present embodiment, as shown in FIG. 2, the LED lamp that is a light source constituting the light emitting unit 10 has a light quantity distribution L with respect to a side that is close to the vehicle interior ceiling side and a side that faces the side. in the first region R1 in which these and than substantially parallel imaginary boundary line l ₀ located on sides adjacent to the passenger compartment ceiling, than the second region R2 close to the sheet side than the boundary line Configured for low output.
When the vanity mirror 4 installed on the sun visor is opened with the sun visor opened at an angle of about 120 degrees (FIG. 1 (a)), the light intensity of the LED lamp as the illumination means opens the sun visor. When viewing the map in an open state of about 180 degrees (FIG. 1 (b)), the number of LED lamps is adjusted to control the output so that it is about half of the light quantity of the LED lamps as the illumination means. It is characterized by that.

FIG. 3 is a schematic explanatory diagram of the vehicle interior lighting device, and FIG. 4 is a schematic explanatory diagram of the installation state.
As shown in FIG. 4, the vehicle interior lighting device according to the present embodiment is used to illuminate a person 200 who uses a vanity mirror 4 installed in a vehicle interior 110 of a vehicle 100 such as an automobile. is there.

  By the way, the vanity mirror 4 is provided in the sun visor 5 installed corresponding to the seat 120, as shown in FIG. The sun visor 5 includes a sun visor main body 50 that is installed on a roof (roof) 140 near the upper portion of a front window (windshield) 130 in the passenger compartment 110. The sun visor body 50 is formed in a rectangular flat plate shape having a horizontal direction (left and right direction in FIG. 3) as a longitudinal direction, and is formed at the center of one surface side (the surface side facing the seat 120 when the sun visor 5 is used). As shown in FIGS. 3A and 3B, a rectangular recess 50a is formed in which the longitudinal direction of the sun visor body 50 is the longitudinal direction of the sun visor body 50. As shown in FIG. 3B, a rectangular vanity mirror 4 is installed on the bottom surface of the concave portion 50 a of the sun visor body 50. Further, the sun visor 5 includes a cover 51 for the vanity mirror 4 attached to the sun visor main body 50 so that the recess 50a can be opened and closed. The cover 51 is closed as shown in FIG. 3A when the vanity mirror 4 is not used, and is opened as shown in FIG. 3B when the vanity mirror 4 is used. In FIG. 3, the cover 51 is not shown.

As shown in FIGS. 2 to 4, the illumination unit 1 includes two light emitting units 10 that irradiate spot light. As shown in FIGS. 3A and 3B, the two light emitting units 10 are provided on both the left and right sides of the vanity mirror 4 on the one surface side of the sun visor body 50. Hereinafter, in order to distinguish the two light emitting units 10 as necessary, an LED as the light emitting unit 10 provided on the left side of the vanity mirror 4 on the one surface side of the sun visor body 5 (left side in FIG. 3A). The lamp is denoted by reference numeral 10A, and the LED lamp as the light emitting unit 10 provided on the right side (right side in FIG. 3A) is denoted by reference numeral 10B. Each is composed of three LED lamps, and the arrangement density is reduced in the lower part so that the first region R1 located above the virtual boundary line has a lower output than the second region R2. It is configured.
In addition, it is preferable that the position where the light emitting unit 10 is provided in the sun visor 5 is a position separated from the vanity mirror 4 to some extent within a range in which the vanity mirror 4 can be efficiently illuminated.

  Here, when installing the light emitting unit 10 in the sun visor main body 50, as shown in FIG. 5, the optical axes 11 of the light emitting units 10 are in front of the seat 120 (preferably, the person 200 seated in the seat 120 The head 210 (see FIG. 4) is intersected at a space portion). That is, the illumination unit 1 is configured such that the optical axis 11 of the light emitting unit 10A and the optical axis of the light emitting unit 10B intersect on the front side of the seat 120. In addition, it is preferable that the position where the light emitting unit 10 is provided in the sun visor 5 is a position separated from the vanity mirror 4 to some extent within a range in which the vanity mirror 4 can be efficiently illuminated.

  Further, the light emitting unit 10 includes an optical axis adjustment mechanism (not shown) that can manually adjust the direction of the optical axis 11 with the horizontal direction (the longitudinal direction of the sun visor body 50 in the present embodiment) as the rotation axis direction. The position of the seat 120 that is illuminated most brightly by the illumination means 1 can be adjusted in the vertical direction (vertical direction) by this optical axis adjustment mechanism. In addition, such an optical axis adjustment mechanism is comprised so that the direction of the optical axis 11 of each light emission part 10 can be adjusted collectively so that the relationship between the optical axes 11 of each light emission part 10 can be maintained. .

  In the present embodiment, the LED lamp as the light-emitting unit 10 uses a light-emitting diode (not shown) composed of a red light-emitting diode, a green light-emitting diode, and a blue light-emitting diode whose brightness can be individually set. ing. In addition, as the light emission part 10, the light emitting diode (including organic EL) of another structure may be utilized, and an incandescent lamp may be utilized. Moreover, you may utilize what was comprised so that spot light might be irradiated through several optical fiber from a single light source by using a single light source and several optical fiber.

  The control means 2 is for controlling the operation of the illumination means 1 and, for example, a power supply circuit section (not shown) that generates an operation power supply for the illumination means 1 from a power source such as an in-vehicle battery (not shown). ), A dimming circuit unit (not shown) for controlling the brightness of the illuminating unit 1, a toning circuit unit (not shown) for controlling the light color of the illuminating unit 1, a dimming circuit unit and a dimming unit A control circuit unit (not shown) for controlling the color circuit unit. According to such a control means 2, the lighting means 1 can be controlled on (lit) / off (dark), brightness (dimming), and hue (toning). Further, as shown in FIG. 3A, the control means 2 is housed in the sun visor body 50 and is electrically connected to the LED lamp as the illumination means 1 and the battery by a power line (not shown). The power source is not limited to the on-vehicle battery, and a power source independent of the vehicle such as a dry battery may be used.

  Incidentally, the LED lamp as the illumination unit 1 may be turned on / off manually, or may be configured to be interlocked with the opening / closing of the cover 51. That is, when the cover 51 is opened, it is assumed that there is an intention to use the vanity mirror 4, and when the LED lamp as the illumination means is turned on and the cover 51 is closed, there is no intention to use the vanity mirror 4. The control unit 2 may be configured to turn off the illumination unit 1. Such a control means 2 can be realized by using, for example, a switch that is turned on / off in response to opening / closing of the cover 51.

  The operation unit 3 is a user interface configured to be able to communicate with the control unit 2 by wire or wireless, for example, and includes an on / off switch, a dimming switch, a toning switch, and the like of the lighting unit 1. It has. The operation means 3 may be directly installed on the vehicle or a remote control.

  As described above, according to the lighting device of the present embodiment, the side close to the vehicle interior ceiling side and the side facing the side pass through a point that is substantially parallel to these and equally divides these distances. With a virtual line, the light source in the ceiling side distant area emits light with a relatively higher output than the light source in the ceiling side adjacent area, so when looking at the vanity mirror at the time of makeup, Light from a high-power light source can be prevented from directly entering the field of view, and glare can be reduced. On the other hand, since the light source in the ceiling side distant region, that is, the sheet side, has a high output, the hand can be irradiated more efficiently when the hand is viewed.

  Further, since the position in the vertical direction (vertical direction) of the seat 120 illuminated by the illumination unit 1 can be adjusted by the optical axis adjustment mechanism provided in the light emission unit 10 of the illumination unit 1, the light emission unit of the illumination unit 1 Compared to the case where the optical axis direction of 10 is fixed, the position illuminated most brightly by the illumination means 1 can be set to a position suitable for the person 200 who uses the vanity mirror 4, and thus a better lighting effect Can be obtained. Note that such an optical axis adjustment mechanism may be configured not to be operated manually as described above but to operate according to a signal output from the operation means 3.

  In addition, since not only the light amount control of the light emitting unit 10 but also the color matching control can be performed by operating the operation means 3, the light color of the light emitting unit 10 can be changed according to the illumination environment outside the vehicle at the destination. You can make makeup that suits the lighting environment outside the car in the ground, and when you get out of the car after applying makeup in the passenger compartment 110, the impression (look) of the makeup differs depending on the lighting environment Can be prevented.

  In the present embodiment, in order to perform the toning control of the light emitting unit 10, a light emitting diode composed of a red light emitting diode, a green light emitting diode, and a blue light emitting diode whose brightness can be individually set is used. However, when such a light-emitting diode is not used, a liquid crystal filter (not shown) is formed using a nematic liquid crystal having a dichroic dye and changes the transmittance of light having a predetermined color temperature in accordance with an applied voltage. To adjust the toning of the light emitting unit 10. Further, the method for performing the color matching control of the light emitting unit 10 is not limited to the above configuration, and a conventionally known configuration can be adopted.

Note that the illumination means, that is, the light source is not only an LED lamp but also an EL, a light bulb, a fluorescent lamp, etc., as long as it has a function that can be stored in a sun visor and whose output can be controlled.
Further, it is desirable to use a sun visor having a mechanism for determining the opening angle of the sun visor and having a function of determining the output of the sun visor based on the determination result and transmitting the signal to the light source. For the determination of the opening angle, a general tilt detection sensor (a known technique used in DS and Wii) can be applied.
In this way, glare is not felt during makeup, and appropriate brightness can be obtained during makeup or reading.

  In the lighting device of the present embodiment, the dimming control of the light emitting unit 10 can be performed by the operation means 3, but a brightness sensor for detecting the brightness in the passenger compartment 110 is provided in the control means 2. The control unit 2 may automatically perform dimming control of the light emitting unit 10 according to the brightness in the passenger compartment 110 detected by the brightness sensor. Further, it may be possible to select either automatic dimming control of the light emitting unit 10 by the control unit 2 or dimming control of the light emitting unit 10 by the operation unit 3.

  Further, in the present embodiment, six light emitting units 10 are provided on the left and right three sides, but the number of light emitting units 10 is not limited to six, and the arrangement position can be changed as appropriate. . Furthermore, the configurations of the illumination unit 1, the control unit 2, and the operation unit 3 are not limited to the above example, and may be changed within a range not departing from the gist of the present invention. These points are the same in the second and third embodiments described later.

(Embodiment 2)
The illumination device of the present embodiment is mainly different from the first embodiment in the arrangement and configuration of the illumination means, and the other configurations are the same as those in the first embodiment, and thus description thereof is omitted.

As shown in FIG. 6, the illumination means in the present embodiment is a side where the light quantity distribution L of the light emitting section 10 provided above and below the vanity mirror 4 on the one surface side of the sun visor body 5 is close to the ceiling inside the vehicle interior. and contrast and opposite sides, these and the first region R1 located on sides of substantially than parallel imaginary boundary line l ₀ adjacent to the passenger compartment ceiling, sheet side than the boundary line The number of LED lamps is set to 5 in the first region R1 and 11 in the second region R2 so that the output is lower than that in the second region R2 adjacent to the second region R2.

  According to this configuration, by turning on / off all the LED lamps, it is possible to realize illumination applicable to reading or the like while easily reducing glare without complicated lighting control.

(Embodiment 3)
In the first and second embodiments, an example using a plurality of light sources has been described. However, in the present embodiment, a pair of light sources are arranged on the side close to the vehicle interior ceiling side and the side facing the side. When placed on a substantially parallel imaginary boundary line l _0, has been described vanity mirror, in the lighting device of this embodiment, outline sectional view of the lighting apparatus in FIG. 7, and to show light intensity distributions in Figure 8 to, to the side to side and opposite thereto adjacent to the passenger compartment ceiling, the first region located sides of the imaginary boundary line l ₀ substantially parallel to these adjacent to the passenger compartment ceiling In R1, lighting control is performed using an optical member so that the output is lower than that of the second region R2 closer to the sheet side than the boundary line, that is, the light amount distribution L is reduced. Here, the light emitting unit 10 is configured by an LED chip, and is configured to guide light forward by the reflecting member 10a. against opposing sides, the first region R1 than imaginary boundary line l ₀ substantially parallel to these located side adjacent to the passenger compartment ceiling, close to the sheet side than the boundary line The transmittance is lower than that of the second region R2, and the light amount distribution L is smaller in the first region R1 than in the second region R2.
Also with this configuration, it is possible to realize illumination applicable to reading and the like while easily reducing glare.

(Embodiment 4)
In the third embodiment, the light amount distribution is adjusted by arranging the optical member. However, in the present embodiment, as shown in FIG. 9, instead of the front glass of the third embodiment, a reflective material is used. The light shielding member 14 is disposed and the light path is changed, so that the output is lower than that of the second region R2 close to the sheet side, that is, the light amount distribution L is reduced by using the reflective light shielding member 14. Control is performed. Here again, as in the third embodiment, the light emitting unit 10 is configured by an LED chip, and is configured to guide light forward by the reflecting member 10a. Then, by adjusting the light shielding member 14 of the reflective, to the side to side and opposite thereto adjacent to the passenger compartment ceiling, the vehicle interior ceiling than those substantially parallel imaginary boundary line l ₀ In the first region R1 located on the side closer to the sheet, the light amount distribution L is smaller than that in the second region R2 closer to the sheet side than the boundary line.
Also with this configuration, it is possible to realize illumination applicable to reading and the like while easily reducing glare.

(Embodiment 5)
In the fourth embodiment, the light quantity distribution is adjusted by arranging the optical member. However, in the present embodiment, as shown in FIG. 10, instead of the reflective light shielding member 14 of the fourth embodiment, The light shielding member 15 is disposed in front of the LED chip, and a part of the direct light is cut, so that the output is lower than the second region R2 close to the sheet side, that is, the light amount distribution L is reduced. The lighting control is performed using the light-shielding member 14 having the property. Here, as in the fourth embodiment, the light emitting unit 10 is configured by an LED chip, and is configured to guide light forward by the reflecting member 10a. And the presence of the shielding member 15, to the side part of the direct light sides and facing the proximate to the vehicle interior ceiling is cut than said imaginary boundary line l ₀ substantially parallel to these In the first region R1 located on the side close to the vehicle interior ceiling side, the light amount distribution L is smaller than the second region R2 closer to the seat side than the boundary line.
Also with this configuration, it is possible to realize illumination applicable to reading and the like while easily reducing glare.

(Embodiment 6)
Although the vanity mirror has been described in the first and second embodiments, the lighting device of the present embodiment can also be applied to a lighting device for a rear seat mirror. In the lighting device of the present embodiment, the installation position is mainly different, so that it is formed so that it can be used for other purposes such as an auxiliary light at the time of getting on and off by irradiation toward the floor surface. The configuration is the same as in the first embodiment.

  In addition, this configuration is not limited to the illumination means for the seat mirror in the passenger compartment, and the illumination means for the vanity mirror of the first embodiment illuminates the passenger seat or the floor surface of the driver's seat and the outside of the passenger compartment. You may comprise so that it can do.

  As described above, according to the present invention, glare is not felt at the time of makeup, and appropriate brightness can be obtained at the time of makeup or reading. It is a lighting device effective for various vehicles such as trains such as Shinkansen.

DESCRIPTION OF SYMBOLS 1 Illumination means 2 Control means 3 Operation means 4 Vanity mirror 5 Sun visor 10, 10A, 10B Light emission part 10a Reflective member 11 Optical axis 101 Ceiling 110 Car compartment 120 Seat 200 User

Claims (5)

A vehicle interior sun visor having a mirror surface portion that is rotatably arranged with an arbitrary opening angle with respect to the vehicle interior ceiling and can be accommodated so as to be in contact with the vehicle interior ceiling;
A vehicle interior lighting device having a light emitting portion attached to a surface of the vehicle interior sun visor facing the vehicle interior ceiling,
The light emitting unit is located on a side closer to the vehicle interior ceiling side than a virtual boundary line substantially parallel to the side adjacent to the vehicle interior ceiling side and the side facing the side. The vehicle interior lighting device configured to have a lower output than the second region closer to the seat side than the boundary line. The vehicle interior lighting device according to claim 1,
The imaginary boundary line is a vehicle interior illumination device that equally divides a distance between a side close to the vehicle interior ceiling side and a side facing the side. The vehicle interior lighting device according to claim 1 or 2,
The light emitting unit includes a plurality of light sources disposed so as to surround the mirror surface part,
A vehicle interior lighting device including an output control unit that controls outputs of the plurality of light sources. The vehicle interior lighting device according to claim 1 or 2,
The light emitting unit includes a plurality of light sources disposed so as to surround the mirror surface part,
A vehicle interior lighting device comprising an optical member attached in the vicinity of the light source and controlling an output from the light source. The vehicle interior lighting device according to claim 1 or 2,
The light emitting unit is composed of a pair of light sources arranged so as to straddle a virtual boundary line,
A vehicle interior lighting device comprising an optical member attached near the light source and controlling the output of the light source.

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