JP2010269738A - Vehicle room lighting system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicle room lighting system for producing high output when taking a look at hand without giving a feeling of glare to a user when using a mirror in a sun visor. <P>SOLUTION: When detecting the visual line of the user, the vehicle room lighting system controls the output of a light source mounted in the sun visor along to the visual line of the user. Namely, it includes the vehicle room sun visor 5 to be arranged turnably on a vehicle room ceiling 101 at a selective opening angle and stored in contact with the vehicle room ceiling, a light emitting part 10 mounted on/near the face of the vehicle room sun visor 5 to face the vehicle room ceiling, and a distance detecting part 20 for detecting a distance between the light emitting part 10 mounted on the face of the vehicle room sun visor 5 to face the vehicle room ceiling 101 and the face of the user. When the distance detecting part 20 determining that the distance from the face of the user is smaller than a predetermined value, light is emitted with relatively lower output. <P>COPYRIGHT: (C)2011,JPO&INPIT

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 the sun visor is in use. 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.

  When makeup is made using a mirror installed in the sun visor (FIG. 14 (a)), the distance between the light source and the face to be irradiated, and when looking at the hand by map observation or the like (FIG. 14 (b) When the distance between the light source in ()) and the hand that is the object to be irradiated is compared, the distance when applying makeup is clearly shorter than the distance when illuminating the hand (see FIG. 14). Furthermore, the required illuminance does not vary greatly between applying makeup and reading the material at hand (see FIGS. 5 and 6). 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 (see FIG. 14), if the output of the light source is high, the user feels glare, so the output of the light source is reduced during makeup. It is desirable.

  On the other hand, it is known that the distance between the light source and the object to be viewed is greatly different when the user uses the mirror in the sun visor and when he / she looks at the hand by observing a map or the like (see FIG. 14).

  The present invention has been made in view of the above circumstances, and it is possible to obtain a high output 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 an apparatus.

  Therefore, in the present invention, by detecting the distance between the surface of the vehicle interior sun visor facing the ceiling of the vehicle interior and the face of the user, the output of the light source attached in the sun visor is controlled in accordance with the line of sight of the user. The above-mentioned purpose is achieved.

That is, the present invention provides a vehicle interior sun visor 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, and the vehicle interior of the vehicle interior sun visor. A light emitting unit attached to a surface facing the ceiling or the vicinity thereof, and a distance detection unit for detecting a distance between a surface facing the vehicle interior ceiling of the vehicle interior sun visor and a user's face, the distance detection unit, When it is determined that the user's line of sight is facing the sun visor, it is configured to emit light at a relatively lower output than when it is determined that the user is not facing the sun visor.
With this configuration, when the distance between the light source and the object to be viewed is equal to or less than a predetermined value, the distance detection unit emits light at a relatively lower output than the predetermined value. Therefore, glare is not felt at the time of makeup, and appropriate brightness can be obtained at the time of makeup or reading.

In the vehicle interior lighting device according to the present invention, the light source is attached to a surface of the sun visor facing a vehicle interior ceiling.
According to this configuration, the inclination angle is changed together with the sun visor, and the wiring and the drive unit are easily stored.

In the vehicle interior lighting device according to the present invention, the distance detection unit may be attached to a surface of the sun visor facing the vehicle interior ceiling.
According to this configuration, the inclination angle is changed together with the sun visor, and the wiring and the drive unit are easily stored.

In the vehicle interior lighting device according to the present invention, the light emitting unit may be configured so that the output can be switched corresponding to the output of the distance detecting unit.
According to this configuration, since the output of the light emitting unit is configured to be switchable, the output can be efficiently controlled as compared with the case where the light amount control is performed using a light shielding member or the like.

In the vehicle interior lighting device according to the present invention, the light emitting unit includes a configuration in which the output can be gradually increased corresponding to the output of the distance detecting unit.
According to this configuration, the output of the light emitting unit is not variable in two stages, but is variable in multiple stages or continuously, so that the output becomes larger at a distance from the light source, and the hand can be brightly illuminated. It becomes possible to perform control more efficiently.

In the vehicle interior lighting device according to the present invention, the light emitting unit may be arranged such that an optical axis is rotatable with respect to a surface of the sun visor facing a vehicle interior ceiling.
According to this configuration, since the optical axis is rotatable, it is configured to be tiltable with respect to the surface facing the vehicle interior ceiling, so that the irradiation range can be finely adjusted.

In the vehicle interior lighting device according to the present invention, the light emitting unit includes an optical axis fixed to a surface of the sun visor facing a vehicle interior ceiling.
According to this configuration, the structure is simple and light weight can be achieved, and by tilting the sun visor, the light source can be tilted freely, so that the irradiation range can be finely adjusted. A desired region can be irradiated almost appropriately.

  According to the above configuration, since the output is controlled due to the output of the distance detection unit, glare is not felt more reliably 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 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 The figure which shows the result of having done the evaluation about the make-up in the car and the glare The figure which shows the result of having done the evaluation experiment about the illuminance and easiness of reading when reading in the car Explanatory drawing which shows the basic structure of the illuminating device of Embodiment 1 of this invention. Schematic explanatory drawing of the installation state of the modification of the illuminating device of Embodiment 1 of this invention. Schematic explanatory drawing of the illuminating device of Embodiment 2 of this invention. Schematic explanatory diagram of the installation state of the lighting device in the same as above Schematic explanatory drawing of the modification of the illuminating device of Embodiment 2 of this invention. Schematic explanatory drawing of the illuminating device of Embodiment 3 of this invention. Schematic explanatory drawing of the illuminating device of Embodiment 3 of this invention. Schematic explanatory diagram of the lighting device, (a) is a diagram showing the time of makeup, (b) is a diagram showing a state of looking at a map or the like in the car

(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 a state of makeup such as shaving and hairdressing using a vanity mirror (mirror) 4 installed in the sun visor 5, and FIG. 1B is a diagram showing a state where a map is viewed in a vehicle. is there. In the present embodiment, a distance detection unit 20 configured with a CCD camera that detects the line of sight of the user 200 is provided. The distance detection unit 20 brings the user 200 close to the sun visor and the face faces the sun visor. If it is determined that the user 200 is sitting on the back of the seat and looking at the map at hand, it is assumed that the user 200 emits light at a relatively low output compared to the case where it is determined that the user is not facing the sun visor 5. It is characterized by comprising.

That is, when the makeup means using the vanity mirror 4 installed on the sun visor 5 is shown (FIG. 1 (a)), the light quantity of the LED lamp as the illumination means 10 is as shown in the map (FIG. 1 (b)). It is characterized in that the output of the LED lamp is controlled so as to be about half of the light quantity of the LED lamp as the illumination means. Here, the illumination means 10 is composed of an LED lamp mounted on the surface of the sun visor facing the vehicle interior ceiling 101.
Here, the distance detection unit is composed of a microwave light emitting element and a light receiving element attached to the ceiling 101, and receives the reflected light from the human face with the light receiving element and detects the distance. The distance detection unit is configured by an imaging device, the captured image is analyzed by image processing, the distance between the user 200 and the light source is detected, and it is determined whether or not the distance is closer than a predetermined value. When the distance is shorter than a predetermined value, it may be determined that the line of sight is facing the sun visor. When it is determined that the line of sight is facing the sun visor, glare is avoided by controlling the light to be emitted at a relatively low output compared to when it is determined that the line of sight is not facing the sun visor 5.

  FIG. 2 is a schematic explanatory diagram of the vehicle interior lighting device, FIG. 3 is a schematic explanatory diagram of the installation state, and FIG. 4 is a block diagram of the vehicle interior lighting device of the present embodiment.

  The vehicle interior lighting device of 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 as shown in FIG. is there. And as shown in FIG. 4, the LED lamp as the illumination means 1 which is installed in the front side of the seat 120 in the passenger compartment 110 and irradiates light toward the seat 120, and the control means 2 which controls the operation of this LED lamp. And an operating means 3 used for operating the control means 2. This operation means may be installed in the vicinity of the driver's seat, or may be constituted by a remote control switch.

  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. 2 (a) and 2 (b), a rectangular recess 50a having the longitudinal direction of the sun visor body 50 as its longitudinal direction is formed. A rectangular vanity mirror 4 is installed on the bottom surface of the concave portion 50a of the sun visor body 50, as shown in FIG. 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. 2A when the vanity mirror 4 is not used, and is opened as shown in FIG. 2B 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. 2A and 2B, the two light emitting units 10 are provided on 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, the LED as the light emitting unit 10 provided on the left side of the vanity mirror 4 (the left side in FIG. 2A) on the one surface side of the sun visor body 5. 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. 2A) is denoted by reference numeral 10B.

  Here, when installing the light emitting unit 10 in the sun visor main body 50, as shown in FIG. 4, the optical axes 11 of the light emitting units 10 face each other on the front side of the seat 120 (preferably, the person 200 seated in the seat 120). The head 210 (see FIG. 3) is intersected at a space portion). That is, the illumination means 1 is configured such that the optical axis 11 of the light emitting unit (LED lamp) 10A and the optical axis of the light emitting unit (LED lamp) 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 illumination unit 1 according to the output of the distance detection unit 20, and a toning circuit unit (not shown) for controlling the light color of the illuminating unit 1. ) And a control circuit unit (not shown) for controlling the light control circuit unit and the color control circuit unit. Based on the distance between the user's face and the light source, it is determined by the output of the distance detection unit 20 whether or not this distance is smaller than a predetermined value. It is adjusted so as to make it smaller. 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. 2A, 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 illumination device of the present embodiment, the line of sight is different between the case where makeup is performed using the vanity mirror 4 installed in the sun visor 5 and the case where the hand is viewed by observing a map or the like. The output of the light source attached in the sun visor is controlled on the basis of the detection result by the distance detection unit, and the output of the light source is reduced during makeup so that the user does not feel glare. Here, when comparing the distance between the light source (which is the LED lamp) and the face that is the irradiated object, and the distance between the light source and the hand when looking at the map, etc., the distance when applying makeup is closer to the hand. It is clearly shorter than the distance for illuminating (see FIGS. 1A and 1B).
Next, 6 subjects were evaluated for re-dressing and dazzling in the car. The result is shown in FIG.
FIG. 6 shows the results of an evaluation experiment on the illuminance and the ease of reading when subjects 1, 2, and 3 are reading in the car.
FIG. 7 is a diagram showing a basic structure of the lighting apparatus (sun visor) of the first embodiment used at this time.
From the evaluation results shown in FIGS. 5 and 6, it can be seen that the required illuminance does not vary greatly between the case of applying makeup and the case of reading the material at hand. 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 (see FIG. 4), the user feels glare when the output of the light source is high, but the light source depends on the opening angle of the sun visor. By reducing the output, glare can be avoided during makeup.

  Further, since the optical axes 11 of the light emitting units 10 that irradiate the spot light toward the seat 120 intersect with each other on the front side of the seat 120, the optical axis direction is different from the person 200 seated on the seat 120. Spot light can be irradiated. Therefore, the person 200 can be illuminated so that the shadow of the face and the like becomes clear, the irradiation direction can be finely adjusted, and a good lighting effect can be obtained when the vanity mirror 4 is used for re-dressing. be able to.

  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 with 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. Is 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.

  In the example shown in FIGS. 2A and 2B, the light emitting unit 10 of the illumination unit 1 is provided in the sun visor 5, but the light emitting unit 10 has a roof inside the vehicle compartment 110 as shown in FIG. 140 may be provided. Compared to the basic configuration of the sun visor of the first embodiment shown in FIG. 7, in the example shown in FIG. 8, the two light emitting units 10 are positioned on the left and right sides of the vanity mirror 4 provided in the sun visor 5. It is provided on the roof 140. In this way, it is possible to easily adjust the positional relationship between the light emitting unit 10 and the vanity mirror 4 as compared with the case where the light emitting unit 10 is installed in the sun visor 5 as shown in FIGS. It becomes like this.

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 can control output.
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.

  In the present embodiment, two light emitting units 10 are provided. However, the number of the light emitting units 10 is not limited to two. What is necessary is just to provide so that it may cross | intersect on the front side. 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.

As described above, according to the present invention, the amount of light is reduced during the period in which the distance detection unit detects the makeup when looking at the vanity mirror where glare is a problem and detects the line of sight looking at the vanity mirror. Therefore, when reading, glare is not felt because the line of sight is not directed toward the light source.
As described above, a makeup act can be performed at an appropriate brightness without being dazzling on a person with an approximate physique.

(Embodiment 2)
In the illumination device of the present embodiment, the configuration of the illumination means 1 is mainly different from that of the first embodiment, and the other configurations are the same as those of the first embodiment, and thus description thereof is omitted.

  As shown in FIGS. 9 and 10, the illuminating means 1 in the present embodiment includes a light emitting unit 10 (hereinafter referred to as necessary) 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. 9). And a light-emitting unit 10 provided on the right side (right side in FIG. 9) (hereinafter, indicated by reference numeral (LED lamp) 10B if necessary). The auxiliary light emitting unit 12 that irradiates 120 with diffused light is provided. Here, as the auxiliary light emitting unit 12, for example, a linear light source in which light emitting diodes are arranged in a predetermined direction is adopted. Further, the auxiliary light emitting unit 12 is arranged such that the longitudinal center line thereof coincides with the longitudinal center line of the vanity mirror 4.

  Correspondingly, the control means 2 includes a power supply circuit unit (not shown) that generates driving power for the auxiliary light emitting unit 12 from the power source, and a light control circuit unit (not shown) that controls the brightness of the auxiliary light emitting unit 12. A toning circuit unit (not shown) for controlling the light color of the auxiliary light emitting unit 12, and a control circuit unit (not shown) for controlling the dimming circuit unit and the toning circuit unit. The control unit 2 can control the auxiliary light emitting unit 12 on (lit) / off (extinguish), brightness (light control), and hue (color control). On the other hand, the operation means 3 is provided with a switch for turning on / off the auxiliary light emitting unit 12, a dimming switch, a toning switch, and the like. Note that the operations of the auxiliary light emitting unit 12 and the light emitting unit 10 may be interlocked with, for example, on / off, dimming control, and toning control.

  According to the illumination device of the present embodiment described above, in addition to the spot light irradiated by each of the light emitting unit 10A and the light emitting unit 10B, the auxiliary light emitting unit 12 installed between the light emitting unit 10A and the light emitting unit 10B. Since the person 200 seated on the seat 120 can irradiate the diffused light, the person 200 can be illuminated so that the shadow of the face and the like becomes softer, and the lighting environment closer to the natural state is reproduced as compared with the first embodiment. Therefore, a better lighting effect can be obtained when the vanity mirror 4 is used for makeup retouching or the like.

  Further, as shown in FIG. 11, the auxiliary light emitting unit 12 may be installed on the roof 140 inside the passenger compartment 110 so as to be positioned between the light emitting unit 10A and the light emitting unit 10B. Similar effects can be obtained.

  In addition to the above example, the auxiliary light emitting unit 12 may be a straight tube type discharge lamp (for example, a cold cathode fluorescent lamp) that emits white light. Any device that can irradiate light may be used.

(Embodiment 3)
Although the vanity mirror has been described in the first and second embodiments, the lighting device for the rear seat mirror will be described in the lighting device of the present embodiment. 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.

  As shown in FIGS. 12 and 13, the illumination means in the present embodiment is a light emitting unit 10R (hereinafter referred to as necessary) provided on the left side of the rear seat mirror 4R (the right side in FIGS. 12 and 13). 10RA) and a light emitting unit 10R (hereinafter, indicated by reference numeral 10RB as necessary) provided on the right side (left side in FIGS. 12 and 13). 12 shows a state in which the rear seat mirror 4R is housed, and FIG. 13 shows a main part view of the rear seat mirror 4R in use. As shown in FIG. 12, the illumination device of the present embodiment illuminates a person 200 </ b> R who uses a rear seat mirror 4 </ b> R installed on a roof 140 of a vehicle room 110 of a vehicle 100 such as an automobile. As shown in FIG. 12, the illumination means 1R that is installed on the front side of the rear seat 120R in the passenger compartment 110 and emits light toward the rear seat 120R, and the operation control of the illumination means 1R And a control means (not shown) for performing the above and an operation means not used for operating the control means 2.

  By the way, the rear seat mirror 4R is installed at a position corresponding to the rear seat 120R of the roof 140, as shown in FIGS. Further, the rear seat mirror 4R includes a cover 51 for the rear seat mirror 4R attached so as to be freely opened and closed. When the rear seat mirror 4R is not used, the cover 51 is closed as shown in FIG. 12, and when the rear seat mirror 4R is used, the cover 51 is opened as shown in FIG.

  As shown in FIG. 1, the illuminating unit 1 includes two light emitting units 10 </ b> R that irradiate spot light. As shown in FIGS. 12 and 13, the two light emitting units 10 </ b> R are provided on both the left and right sides of the rear seat mirror 4 </ b> R. Hereinafter, in order to distinguish between the two light emitting units 10R as necessary, the light emitting unit 10R provided on the left side (left side in FIG. 12) of the rear seat mirror 4R is denoted by reference numeral 10AR, and the right side (right side in FIG. 12). The light emitting unit 10R provided in is denoted by reference numeral 10BR.

  Here, as in the first embodiment described with reference to FIG. 1, the light emitting unit 10 </ b> R is manually or electrically operated with the optical axis direction set as the rotation axis direction in the horizontal direction (the longitudinal direction of the rear seat mirror 4 </ b> R in this embodiment). The optical axis adjustment mechanism (not shown) that can be adjusted by the optical axis adjustment mechanism is provided, and by this optical axis adjustment mechanism, the position of the rear seat 120R that is illuminated most brightly by the illumination means 1 can be adjusted in the vertical direction (vertical direction). I have to. This optical axis adjustment mechanism can also adjust the optical axis of each light emitting unit 10R independently, illuminating the user's face horizontally or slightly downward, and performing re-dressing using a rear seat mirror. In addition to the above, it can be used as a reading lamp by irradiating the seat seat surface in the horizontal direction. Moreover, by irradiating the light from the light sources so that the light from the plurality of light sources crosses in the sheet direction, it is possible to avoid yourself during reading.

  Furthermore, the plurality of light sources do not have to be turned on simultaneously, and only some of them can be turned on for use.

  It can also be used as an auxiliary light when getting on and off by irradiating light outside the passenger compartment or on the floor. For example, by distributing and irradiating a plurality of light sources to the outside of the passenger compartment and the floor surface, approximately the same brightness can be obtained from the floor surface (in the passenger compartment) to the exterior of the passenger compartment, and the movement during getting on and off is made smooth. It becomes possible.

  Also in the present embodiment, the number of the light emitting units 10R is not limited to two, and the optical axes of the plurality of light emitting units 10R intersect with each other on the front side or the floor surface of the rear seat 120R. However, it is also possible to take a form in which the optical axis does not intersect such as the floor surface and the outside of the vehicle.

  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 11 Optical axis 12 Auxiliary light emission part 20 Distance detection part 101 Ceiling 110 Car compartment 120 Seat 200 User

Claims (6)

A vehicle interior sun visor that is rotatably arranged with an arbitrary opening angle with respect to the vehicle interior ceiling, and that can be accommodated in contact with the vehicle interior ceiling,
A light emitting portion attached to a surface of the vehicle interior sun visor facing the vehicle interior ceiling or the vicinity thereof;
A distance detection unit for detecting a distance between a surface of the sun visor facing the vehicle interior ceiling and a user's face part;
Based on the output of the distance detection unit, when the distance between the surface of the sun visor facing the vehicle interior ceiling and the user's face is less than or equal to a predetermined value, the light emitting unit is more than the other case, A vehicle interior lighting device configured to emit light at a low output. The vehicle interior lighting device according to claim 1,
The said distance detection part is a vehicle interior lighting apparatus attached to the surface which faces the vehicle interior ceiling of the said sun visor. The vehicle interior lighting device according to claim 1,
The light emitting unit is a vehicle interior lighting device configured to be switchable in output corresponding to the output of the distance detecting unit. The vehicle interior lighting device according to claim 1,
The vehicle interior lighting device is configured such that the light-emitting unit gradually changes the output corresponding to the output of the distance detection unit. A vehicle interior lighting device according to any one of claims 1 to 4,
The light emitting unit is a vehicle interior lighting device arranged such that an optical axis is rotatable with respect to a surface of the sun visor facing a vehicle interior ceiling. A vehicle interior lighting device according to any one of claims 1 to 4,
The light emitting unit is a vehicle interior lighting device in which an optical axis is fixed to a surface of the sun visor facing a vehicle interior ceiling.

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