JP2017171242A - Lighting device - Google Patents

Abstract

An illumination device mounted on a vehicle suppresses the amount of light leaking outside the vehicle.
A lighting device mounted on a vehicle illuminates a trunk room in conjunction with opening of a back door. The illumination device 26 irradiates illumination light having directivity from the opening 20 near the back door 18 toward the inside of the vehicle 10. Thereby, the amount of light leaking from the opening 20 to the outside of the vehicle 10 is suppressed, and insects collected in the light leaking from the opening 20 are prevented from entering the inside of the vehicle 10 from the opening 20.
[Selection] Figure 1

Description

  The present invention relates to a lighting device mounted on a vehicle.

  In hatchback vehicles such as one-box cars, light vans, and station wagons with flip-up and side-opening back doors (rear doors), the space between the trunk room (luggage platform) and the cabin (cabin space where people can ride) It does not have a partition wall (bulkhead) and has an open-type trunk structure in which the trunk room and the cabin become one. In addition, a technique has been proposed in which lighting for illuminating the trunk room is turned on and off in conjunction with opening and closing of the back door of the trunk room (see, for example, Patent Document 1).

Japanese Patent Laid-Open No. 7-125574

  In hatchback cars, when opening the back door and loading and unloading luggage into the trunk room, the light from the trunk room leaks out of the car, and insects gather in the leaked light. As a result, insects enter the cabin where passengers are located. There was a case.

  This invention is made | formed in view of such a condition, The main objective is to provide the technique which suppresses the quantity of the light which leaks out of a vehicle in the illuminating device mounted in a vehicle.

  In order to solve the above-described problem, an illumination device according to an aspect of the present invention is an illumination device mounted on a vehicle, and irradiates light having directivity toward an inside of the vehicle from an opening near the door portion of the vehicle. . The illumination device may suppress the luminance of light emission based on the illuminance value of the illuminance sensor.

  It should be noted that any combination of the above components, the expression of the present invention converted between a method, a system, a computer program, a recording medium recording the computer program, a vehicle equipped with the apparatus, and the like are also included in the present invention. It is effective as an embodiment of

  ADVANTAGE OF THE INVENTION According to this invention, the quantity of the light which leaks out of a vehicle in the illuminating device mounted in a vehicle can be suppressed.

It is a figure which shows the structure of the vehicle which concerns on an Example. It is a figure which shows arrangement | positioning of the illuminating device which concerns on an Example in detail. It is a figure which shows arrangement | positioning of the illuminating device which concerns on a modification in detail. It is a block diagram which shows the function structure of the vehicle which concerns on an Example. It is a flowchart which shows operation | movement of an illuminating device. It is a flowchart which shows the illumination control at the time of the insect countermeasure mode of S16 of FIG. 5 in detail. It is a figure which shows the relationship between the illumination intensity outside a vehicle in an Example, and the brightness | luminance of a light emission part. It is a figure which shows the relationship between the illumination intensity outside the vehicle in a modification, and the brightness | luminance of a light emission part. It is a flowchart which shows the illumination control at the time of the insect countermeasure mode of S16 of FIG. 5 in detail.

Before specifically describing the embodiments of the present invention, an outline of the embodiments will be described.
When the back door was opened in a hatchback car and the lighting in the trunk room was lit, the trunk room light leaked out of the car and insects gathered, and the collected insects sometimes entered the trunk room. In particular, in a vehicle having an open trunk structure in which a trunk room and a cabin are combined, insects may enter the cabin on which the occupant is riding through the trunk room, which may cause discomfort to the occupant. Therefore, in this embodiment, a technique for suppressing the amount of light leaking outside the vehicle in a lighting device that illuminates a trunk room is proposed.

  FIG. 1 shows a configuration of a vehicle 10 according to the embodiment. FIG. 1A is a side view of the vehicle 10. In the figure, the interior space behind the rear seat 12 of the side surface of the vehicle 10 is drawn transparently. The vehicle 10 is a so-called one-box car and has an open trunk room 14. That is, in the vehicle 10, the cabin 16 from the front driver's seat (not shown) to the rear seat 12 and the rear trunk room 14 communicate with each other.

  The trunk room 14 is a space sandwiched between the back door 18, the back surface of the rear seat 12, the floor surface 22, and the ceiling surface 24 when the vehicle 10 is viewed from the side. When the back door 18 is opened, the portion where the back door 18 is located becomes the opening 20 of the trunk room 14. The occupant opens the back door 18 and loads the luggage from the opening 20 to the trunk room 14 or lowers the luggage from the opening 20 of the trunk room 14.

  The floor surface 22 of the trunk room 14 is a luggage storage area. An illuminating device 26 serving as a light source for illumination in the trunk room 14 is provided below the floor surface 22 (under the floor). The illuminating device 26 is provided at a position behind the floor surface 22 and at a position near the opening 20. The illumination device 26 is connected to a door sensor (not shown) of the back door 18. The lighting device 26 starts lighting in conjunction with the opening of the back door 18 and ends the lighting in conjunction with closing of the back door 18. The detailed configuration of the illumination device 26 will be described later.

  A lighting switch 28 is provided on the ceiling surface 24. The lighting switch 28 is a switch for the occupant to turn on or off the lighting device 26 in the trunk room 14. Further, the lighting switch 28 transmits a signal indicating that the lighting device 26 is set to ON or OFF to the lighting device 26. The installation position of the lighting switch 28 is not limited to the ceiling surface 24, and may be, for example, the cabin 16 or the side surface of the trunk room 14. The illumination switch 28 is not limited to a mechanical switch, and may be displayed as an image on a touch panel display (not shown).

  An illuminance sensor 32 is provided on the rear bumper 30 of the vehicle 10. The illuminance sensor 32 periodically detects the illuminance outside the vehicle, and transmits a signal indicating the detected illuminance value to the illumination device 26. Note that the position of the illuminance sensor 32 can be installed at any location facing the rear of the vehicle 10, and the illuminance sensor 32 may be installed at a plurality of locations.

  Further, when a plurality of illuminance sensors 32 and a collision-preventing proximity sensor (not shown) are installed on the rear bumper 30, the proximity sensor detects that there is an obstacle (person or thing) near the vehicle 10, If the illuminance of the illuminance sensor near the proximity sensor is extremely low compared with the illuminance of other illuminance sensors, it may be determined that there is an obstacle. The illuminance value outside the vehicle may be calculated from the illuminance values from the remaining illuminance sensors 32 by excluding the illuminance value of the corresponding illuminance sensor whose illuminance is measured low by this obstacle. As described above, even if the value of the illuminance sensor in the vicinity where it is determined that there is an obstacle is measured based on the detection value of the proximity sensor, the illuminance outside the vehicle can be accurately measured.

  FIG. 1B is a rear view of the vehicle 10. FIG. 1C is a top view of the trunk room 14 of the vehicle 10. As described above, the lighting device 26 is installed at a position below the floor surface 22 (under the floor) of the trunk room 14 and is provided near the opening 20. Further, the illumination device 26 (a light emitting unit 36 described later) emits illumination light in a line shape with a length approximate to the lateral width of the opening 20 in order to illuminate the trunk room 14 evenly.

  FIG. 2 shows in detail the arrangement of the illumination device 26 according to the embodiment. The illumination device 26 includes a light emitting unit 36 that emits light. The light emitter of the light emitting unit 36 is a fluorescent lamp or an incandescent lamp. Moreover, although the light emission part 36 of a present Example is comprised by plate shape, you may be comprised by rod shape as a modification. Although not shown in FIG. 2, as shown in FIGS. 1B and 1C, the length of the light emitting portion 36 in the longitudinal direction is a length that approximates the lateral width of the floor surface 22 of the trunk room 14. Furthermore, the light emitting part 36 can also be configured by a light guide plate. In this case, since light is introduced and diffused from the side surface of the light guide plate, uniform light can be emitted to the surface of the light guide plate. Therefore, it is not necessary to install the light emitter on the back surface of the light guide plate, and the lighting device 26 becomes compact. This is particularly effective when the installation space is limited as in a car.

  A surface that emits the illumination light 40 in the light emitting unit 36 is referred to as a light emitting surface 37. The light emitting unit 36 has a configuration that enhances the light directivity so that the illumination light 40 emitted from the light emitting surface 37 is substantially perpendicular to the light emitting surface 37. A configuration for increasing directivity will be described later.

  As a configuration for enhancing the directivity of the illumination light 40 emitted from the light emitting unit 36 (light distribution becomes narrow), (1) in the light emitting unit 36, for example, a plurality of optical sheets (not shown) are provided on the surface of the light emitting surface 37. It may be placed. These optical sheets are for increasing the directivity of light, and may be prism sheets, for example. (2) The light emitting unit 36 may include a light emitter (fluorescent lamp or incandescent lamp) and a lens (such as a cylindrical lens) that collimates light from the light emitter. And the directivity of light may be improved by providing an aperture for shielding light between the light emitter and the lens. The configuration for increasing the directivity is not limited to the one described above.

  A part of the floor surface 22 is constituted by a translucent plate 34 so that the illumination light 40 irradiated from the light emitting unit 36 (light emitting surface 37) is transmitted through the floor surface 22. The translucent plate 34 may be formed of a known material that transmits light, and may be, for example, a polycarbonate plate or an acrylic plate. Parts of the floor surface 22 other than the translucent plate 34 are configured to shield light. In addition, in order to emit light that enhances directivity to the trunk room 14, in addition to the method of improving directivity by the light emitting unit 36 and the light emitting surface 37, a slit is provided so that the light is irradiated to the cabin 16 side on the light transmitting plate 34. By providing the light distribution, the light distribution can be adjusted.

  The light emitted from the light emitting unit 36 is emitted from the opening 20 of the trunk room 14 to the cabin 16 side of the vehicle 10. As a result, the light emitted from the light emitting unit 36 is less likely to leak out of the vehicle 10, preventing insects from entering the cabin 16, and directly illuminating the luggage to be taken in and out of the trunk room 14. Visibility to etc. improves. Further, when this lighting device is used, the energy used for light emission is less than that of the prior art, so it is effective when used for lighting an electric vehicle, for example, for which the amount of charge of electricity is determined.

  In the present embodiment, the light emitting unit 36 is installed such that the light emitting surface 37 faces the inner side (cabine 16 side) of the vehicle 10 instead of the opening 20 side. The light emitting unit 36 is installed such that an angle 38 formed by the floor surface 22 and the light emitting surface 37 is an acute angle. Thereby, the illumination light 40 has a greater strength in the direction of the rear seat 12 than in the direction of the opening 20.

  In this way, the illumination light 40 of the light emitting unit 36 has directivity from the opening 20 toward the inside of the vehicle and illuminates the trunk room 14 from a part of the floor surface 22, so that the illumination light 40 is outside the vehicle 10. In addition, since the translucent plate 34 is installed on a part of the floor surface 22, the entire floor surface 22 for storing luggage and the like has a flat shape without a step and can store luggage. Will not be damaged.

  FIG. 3 shows in detail the arrangement of the illumination device 26 according to the modification, and points different from the configuration of FIG. 2 will be described.

  The illumination device 26 of the modification shown in FIG. 3 further includes a mirror unit 42 in addition to the configuration of the embodiment of FIG. The mirror part 42 reflects incident light to the cabin 16 side through the translucent plate 34. The light emitting surface 37 of the light emitting unit 36 is installed perpendicular to the floor surface 22 (angle 38 is 90 °), and illumination light from the light emitting surface 37 is irradiated perpendicularly to the light emitting surface 37. Illumination light from the light emitting surface 37 is irradiated in parallel to the floor surface 22. The mirror part 42 is installed so that the angle 44 formed with the floor surface 22 is less than 45 °, and reflects the irradiation light from the light emitting surface 37 toward the inside of the vehicle 10. The mirror part 42 reflects incident light so as to have directivity from the opening 20 toward the inside of the vehicle.

  The light emitting surface 37 of the light emitting unit 36 may be installed at an angle of 90 ° to 150 ° with respect to the floor surface. In this case, the angle 44 of the mirror unit 42 is at a position where light can be reflected toward the cabin 16 side. Install. As a result, the light emitting surface 37 of the light emitting unit 36 is smaller in height than in the vertical direction, and the angle with the floor surface 22 of the mirror unit 42 is also reduced accordingly. However, it is more compact than installing the light emitting unit 36 vertically. In addition, the installation aspect of the light emission part 36 and the mirror part 42 is not restrict | limited to an above-described aspect.

  Also in the illuminating device 26 shown in FIG. 3, similarly to the illuminating device 26 shown in FIG. 2, the illumination light of the trunk room 14 can be prevented from leaking to the outside of the vehicle 10, so that insects can be prevented from entering the trunk room 14. Although not shown, a structure in which a light transmissive plate 34 having a slit for emitting light toward the cabin 16 is overlaid on the light emitting unit 36 is also possible. Thereby, the structure including the illuminating device and the translucent plate having the slit becomes compact, and there is an effect that the degree of freedom of the installation place is improved.

  FIG. 4 is a block diagram illustrating a functional configuration of the vehicle 10 according to the embodiment. The figure shows a functional configuration related to the illumination device 26. Each block shown in the block diagram of the present specification can be realized in terms of hardware by an element such as a CPU and a memory of a computer or a mechanical device, and in terms of software, it can be realized by a computer program or the like. , Depicts functional blocks realized by their cooperation. Therefore, those skilled in the art will understand that these functional blocks can be realized in various forms by a combination of hardware and software.

  The vehicle 10 includes the lighting switch 28, the illuminance sensor 32, and the lighting device 26 illustrated in FIG. 1, and further includes an operation input unit 50 and a door sensor 52 that are not illustrated in FIG. These devices may be connected by wired communication such as a dedicated line or CAN (Controller Area Network). Further, connection may be made by Ethernet (registered trademark), Wi-Fi (registered trademark), Bluetooth (registered trademark), wired communication, or wireless communication.

  The operation input unit 50 is a user interface device that receives an occupant's operation that instructs the operation mode of the lighting device 26. The operation input unit 50 includes a button or a touch panel display, and may be integrated with a screen of a car navigation system, for example. The operation input unit 50 outputs an operation signal indicating the operation mode of the lighting device 26 designated by the occupant to the lighting device 26.

  The door sensor 52 detects the open / closed state of the back door 18. The door sensor 52 outputs a door opening / closing signal indicating the detected opening / closing state of the back door 18 to the lighting device 26.

  The illumination device 26 includes an operation reception unit 54, a detection unit 56, a control unit 58, and a light emitting unit 36. The operation receiving unit 54 receives an operation signal indicating the operation mode of the lighting device 26 designated by the occupant from the operation input unit 50. The operation mode indicated by the operation signal of the present embodiment includes a normal mode and an insect countermeasure mode. The normal mode is a state where the illumination should be controlled to a normal luminance. The insect countermeasure mode is a state in which the brightness of the illumination should be controlled so as to suppress the invasion of insects into the vehicle. The operation reception unit 54 inputs information on the operation mode indicated by the operation signal to the control unit 58.

  The detection unit 56 receives a signal transmitted from the lighting switch 28 and detects whether the lighting device 26 is turned on or off based on the signal. The detection unit 56 receives the door opening / closing signal transmitted from the door sensor 52 and detects whether the back door 18 is open or closed based on the signal. The detection unit 56 receives a signal transmitted from the illuminance sensor 32 and detects the illuminance outside the vehicle 10. The detection unit 56 inputs the detected information to the control unit 58.

  The control unit 58 controls the presence / absence of light emission and the luminance in the light emitting unit 36 based on information input from the operation accepting unit 54 and the detecting unit 56. Specifically, the control unit 58 controls the presence / absence of light emission in the light emitting unit 36 in accordance with the on / off setting information of the lighting device 26 and whether the back door 18 is opened or closed. The control unit 58 also controls the light emission luminance in the light emitting unit 36 according to the operation mode of the lighting device 26 and the illuminance outside the vehicle 10.

The operation of the illumination device 26 having the above configuration will be described.
FIG. 5 is a flowchart showing the operation of the illumination device 26. When the back door 18 is opened from the state where the back door 18 of the vehicle 10 is closed, the opening of the back door 18 is detected by the door sensor 52 (S10). When the illumination switch 28 is set to ON (Y of S12), the control unit 58 of the illumination device 26 determines whether the operation mode of the illumination device 26 is set to the insect countermeasure mode, and the operation of the illumination device 26 is determined. If the mode is set to the insect countermeasure mode (Y in S14), the light emitting unit 36 is controlled to emit light in the insect countermeasure mode (S16). On the other hand, if the operation mode of the illuminating device 26 is set to the normal mode (N in S14), the control unit 58 of the illuminating device 26 controls the light emitting unit 36 to emit light in the normal mode (S18). As will be described later, in the normal mode, the light emitting unit 36 is caused to emit light with higher brightness than in the insect countermeasure mode.

  When the door sensor 52 detects that the back door 18 is closed (Y in S20), the control unit 58 of the lighting device 26 determines whether the lighting device 26 is turned on, and the lighting device 26 is turned on. At that time (Y in S22), the light emission by the light emitting unit 36 of the illumination device 26 is terminated, the illumination is turned off (S24), and the flow of this figure is terminated. Further, when the lighting device 26 is not turned on (N in S22), the flow of this figure is ended as it is. Returning to step 20, if the back door 18 is opened when the illumination is turned on in the normal mode or the illumination is turned on in the insect countermeasure mode (N in S20), the illumination in the normal mode or the insect countermeasure mode is performed. Continue and return to step 12 (S12) to continue control of illumination.

  When the illumination switch is not turned on in step 12 (S12) (N in S12), the control unit 58 of the illumination device 26 determines whether the illumination device 26 is turned on, and the illumination device 26 is turned off. In this case (Y in S26), the process proceeds to step 20 with the lights off. If the lighting device 26 is not turned off (N in S26), the control unit 58 ends the light emission by the light emitting unit 36 of the lighting device 26, turns off the lighting (S28), and proceeds to step 20. The lighting state of the lighting device 26 is confirmed in step 26 because it is not turned on from the beginning when it is detected that the door is opened and the lighting switch of the lighting device 26 is off.

  However, for example, the lighting switch is initially turned on (Y in S12), and is lit in the normal mode (S18) or lit in the insect countermeasure mode (S16), and the door is not closed (N in S20) to step 12 (N). When returning to S12), the light emitting section 36 is lit. When the light emitting unit 36 is lit, the process proceeds to step 12 and when the illumination switch is off, the light emitting unit 36 needs to be turned off. This is to enable the user to turn off the illumination device 26 when the illumination is no longer necessary even if the user originally needs illumination of the illumination device 26. Further, by turning off the lighting switch 28 when the light emitting unit 36 is lit, it is possible to set the lighting switch OFF state (non-lighting) when the back door 18 is opened next time. The operation of the illumination device 26 due to is reduced.

  FIG. 6 is a flowchart showing in detail the illumination control in the insect countermeasure mode in S16 of FIG. When a predetermined reading cycle in the illuminance sensor 32 that detects the illuminance outside the vehicle 10 has elapsed (Y in S30), the detection unit 56 detects the illuminance in the space outside the vehicle 10 according to the signal from the illuminance sensor 32. (S32). The control unit 58 determines the luminance of the light emitting unit 36 (or the light emitting surface 37) according to the illuminance outside the vehicle 10 detected by the detecting unit 56, and the light emitting unit 36 (or the light emitting surface 37) with the determined luminance. Is caused to emit light (S34). If the reading cycle of the illuminance sensor 32 has not elapsed (N in S30), the subsequent processing is skipped and the flow of this figure is terminated. In the first illumination control, the determination of S30 may be skipped and the process may proceed to S32.

  FIG. 7 shows the relationship between the illuminance outside the vehicle 10 and the luminance of the light emitting unit 36 in the embodiment. In the normal mode, the luminance of the light emitting unit 36 is kept constant at a predetermined value regardless of the illuminance outside the vehicle 10. On the other hand, in the insect countermeasure mode, the luminance of the light emitting unit 36 is controlled to decrease as the illuminance outside the vehicle 10 decreases, and the luminance of the light emitting unit 36 is controlled to increase as the illuminance outside the vehicle 10 increases. . However, the luminance of the light emitting unit 36 that is emitting light in the insect countermeasure mode is set to be always lower than the luminance in the normal mode.

  The luminance of the light emitting unit 36 that is emitting light in the insect countermeasure mode is set to be always lower than the luminance in the normal mode, and the luminance of the light emitting unit 36 that is emitting light in the insect countermeasure mode is from the minimum luminance 60 to the maximum luminance 62. Controlled between. The minimum brightness 60 is, for example, the minimum brightness necessary for the passenger to identify the luggage in the trunk room 14. The maximum brightness 62 is set lower than the brightness in the normal mode. As shown in FIG. 4, S16 (the process in FIG. 6) is repeatedly executed while the back door 18 is being opened (Y in S20) in the insect countermeasure mode. Therefore, when the illuminance outside the vehicle 10 changes while the trunk room 14 is open, the luminance of the light emitting unit 36 also changes according to the changed illuminance.

  According to the illuminating device 26 according to the present embodiment, the illumination light of the trunk room 14 leaks to the outside of the vehicle 10 by irradiating light having directivity from the opening 20 of the trunk room 14 to the vehicle interior side (cabin 16 side). This can be suppressed. Thereby, it is possible to suppress insects from entering the trunk room 14 and to prevent insects from entering the cabin 16 connected to the trunk room 14. As a result, it becomes easy to prevent a passenger's comfort from being damaged by the invasion of insects.

  Further, according to the lighting device 26, the brightness of the light emitting unit 36 is adjusted so that the difference between the illuminance inside the vehicle 10 and the illuminance outside the vehicle 10 is not excessive. This can be effectively suppressed.

  The lighting device 26 according to the following modification is different from the embodiment in the aspect of lighting control in the insect countermeasure mode. Hereinafter, differences from the embodiment will be described.

  In the illumination control in the insect countermeasure mode according to this modification, the insect countermeasure mode is provided without the illuminance sensor 32, and a plurality of types corresponding to the plurality of types of luminance of the light emitting unit 36 on a one-to-one basis. Insect control mode is provided. Specifically, the operation input unit 50 includes a normal mode corresponding to the highest luminance, a first insect countermeasure mode corresponding to high luminance, a second insect countermeasure mode corresponding to medium luminance, and a third insect countermeasure corresponding to low luminance. An operation signal indicating the operation mode selected by the occupant from among the modes is output to the lighting device 26.

  FIG. 8 shows the relationship between the illuminance outside the vehicle 10 and the luminance of the light emitting unit 36 in the modified example. In this modification, the luminance of the light emitting unit 36 is kept constant at a predetermined value regardless of the illuminance outside the vehicle 10 in any operation mode. However, the luminance of the light emitting unit 36 decreases in the order of the normal mode, the first insect countermeasure mode, the second insect countermeasure mode, and the third insect countermeasure mode. In addition, the effect as an insect countermeasure increases in the order of the normal mode, the first insect countermeasure mode, the second insect countermeasure mode, and the third insect countermeasure mode.

  The operation reception unit 54 of the lighting device 26 receives information on the operation mode input by the occupant through the operation input unit 50. The operation mode information is information for instructing the luminance of the light emitting unit 36 and is input from the operation receiving unit 54 to the control unit 58. The control unit 58 controls the luminance of the light emitting unit 36 according to the operation mode.

  FIG. 9 is a flowchart showing in detail the illumination control in the insect countermeasure mode in S16 of FIG. The control unit 58 reads the setting state of the insect countermeasure mode input from the operation receiving unit 54, and identifies whether the insect countermeasure mode is set to the first insect countermeasure mode, the second insect countermeasure mode, or the third insect countermeasure mode ( S40). The control unit 58 causes the light emitting unit 36 to emit light with the brightness corresponding to the set insect countermeasure mode type (S42).

  Also in this modification, the irradiation direction of the illumination light in the illuminating device 26 is the same as that in the embodiment, and leakage of the illumination light in the trunk room 14 to the outside of the vehicle 10 can be suppressed. Further, in the lighting device 26 of the present modification, the occupant's intention can be reflected on the balance between the brightness of the illumination of the trunk room 14 and the difficulty of entering insects into the trunk room 14. For example, the occupant can select the third insect countermeasure mode in summer when there are many insects, select the first insect countermeasure mode in winter when there are few insects, and select the second insect countermeasure mode in spring and autumn. .

  Further, as another insect countermeasure mode, it is also effective to control the luminance to be the highest when it is lit and to reduce the luminance according to the elapsed time during which the back door 18 is opened. The reason why the brightness when the lamp is lit up is the highest in order to confirm the load on which the occupant is loaded and the place where the load is loaded. After that, even if the brightness is lowered, the human eyes will get used to dark places, so there is no problem in putting in and out of luggage, etc., and the insects that come close to the light because the brightness is reduced are prevented from entering the trunk room 14 and the cabin 16 it can.

  The above embodiments are exemplifications, and it will be understood by those skilled in the art that various modifications can be made to each component or combination of each processing process, and such modifications are within the scope of the present invention. is there.

  The lighting device 26 of the above embodiment illuminates the trunk room 14 in conjunction with opening and closing of the back door 18. As a modification, the lighting device 26 may illuminate the trunk room 14 or the cabin 16 in conjunction with opening and closing of a side door (not shown in FIG. 1). For example, the lighting device 26 according to the modified example is a position in the vicinity of the opening generated by opening the side door, and may be installed under the floor of the trunk room 14 or the cabin 16. In this case, as in the above embodiment, part of the floor surface of the trunk room 14 or the cabin 16 is configured as a transmission plate.

  The illumination device 26 according to this modification irradiates illumination light having directivity from the opening of the trunk room 14 or the cabin 16 toward the inside of the vehicle, similarly to the illumination device 26 of the above embodiment. The lighting device 26 according to this modification also has the same effect as the lighting device 26 of the above embodiment. In this modification, the illumination device 26 when the left side door is opened and the illumination device 26 when the right side door is opened may be provided separately. Each illuminating device 26 may irradiate illumination light when a side door associated in advance is opened.

  Although the illuminating device 26 of the said Example was provided in the lower position of the floor surface 22 of the trunk room 14, the installation position of the illuminating device 26 is not restrict | limited to the lower position of the floor surface 22. FIG. For example, it may be installed on the floor surface 22 or may be installed on the ceiling surface 24. Also in this case, the illuminating device 26 emits illuminating light having directivity from the opening of the vehicle 10 toward the inside of the vehicle, and has the same effect as the illuminating device 26 of the above embodiment. In addition, it is preferable to install the illuminating device 26 (especially the light emission part 36) in the position which cannot be directly visually recognized from the opening part side.

  Any combination of the above-described embodiments and modifications is also useful as an embodiment of the present invention. The new embodiment resulting from the combination has the effects of the combined example and modification. Further, it should be understood by those skilled in the art that the functions to be fulfilled by the constituent elements described in the claims are realized by the individual constituent elements shown in the embodiments and the modified examples or by their cooperation.

Note that the techniques described in the examples and the modifications may be specified by the following items.
[Item 1]
An illumination device that is mounted on a vehicle and irradiates light having directivity toward an inside of the vehicle from an opening near a door portion of the vehicle.
According to this lighting device, leakage of illumination light to the outside of the vehicle can be suppressed, and insects can be prevented from entering the vehicle.
[Item 2]
A vehicle having an open trunk room may include a light emitting unit that emits light having directivity toward the inside of the vehicle.
According to this aspect, insects can be prevented from entering the trunk room as the trunk room is illuminated, and insects can be prevented from entering the passenger cabin through the trunk room.
[Item 3]
A part of the floor surface of the trunk room may be configured to transmit light, and the light emitting unit may be installed under the floor of the trunk room.
According to this aspect, it is possible to avoid the lighting device from occupying a part of the trunk room and reducing the capacity of the trunk room. Moreover, since part of the floor surface of the trunk room blocks the illumination light, the leakage of the illumination light to the outside of the vehicle can be effectively suppressed.
[Item 4]
A light emitting unit that emits light having directivity toward the inside of the vehicle, a detection unit that detects illuminance outside the vehicle, and a control unit that adjusts the luminance of the light emitting unit according to the illuminance detected by the detection unit, You may have.
According to this aspect, it is possible to adjust the illumination light so as to have a luminance that makes it difficult for insects to enter according to the illuminance outside the vehicle.
[Item 5]
A control part may make the brightness | luminance of a light emission part low, so that the illumination intensity detected by the detection part is low.
Thereby, it can prevent that the illumination intensity difference between the inside of a vehicle and the exterior becomes large, and can suppress effectively that an insect penetrates into the inside of a vehicle.
[Item 6]
A light emitting unit that emits light having directivity toward the inside of the vehicle, an operation receiving unit that receives an operation of an occupant instructing the luminance of the light emitting unit, and a light emitting unit And a controller for adjusting luminance.
Thereby, a passenger | crew's intention can be reflected with respect to the balance of the brightness of a vehicle interior illumination, and the difficulty of entering the insect into a vehicle.

  10 vehicles, 12 rear seats, 14 trunk rooms, 16 cabins, 18 back doors, 20 openings, 22 floors, 26 lighting devices, 36 light emitting units, 54 operation receiving units, 56 detection units, 58 control units.

Claims (6)

A lighting device mounted on a vehicle,
An illumination device for irradiating light having directivity toward an inside of the vehicle from an opening near the door portion of the vehicle.   The lighting device according to claim 1, wherein the vehicle having an open trunk room includes a light emitting unit that emits light having directivity toward the inside of the vehicle. A part of the floor of the trunk room is configured to transmit light,
The lighting device according to claim 2, wherein the light emitting unit is installed under a floor of the trunk room. A light emitting unit that emits light having directivity toward the inside of the vehicle;
A detector for detecting illuminance outside the vehicle;
A control unit for adjusting the luminance of the light emitting unit according to the illuminance detected by the detection unit;
The lighting device according to claim 1, comprising:   The lighting device according to claim 4, wherein the control unit lowers the luminance of the light emitting unit as the illuminance detected by the detection unit is lower. A light emitting unit that emits light having directivity toward the inside of the vehicle;
An operation receiving unit that receives an operation of an occupant instructing the luminance of the light emitting unit;
A control unit that adjusts the luminance of the light-emitting unit according to the operation of the passenger received by the operation receiving unit;
The lighting device according to claim 1, comprising:

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