JPH0818513B2 - Vehicle interior lighting - Google Patents

Description

The present invention relates to a vehicle interior lighting device that illuminates a vehicle interior of a vehicle such as a passenger car.

[Conventional technology]

FIG. 7 shows an outline of a mounting state of a vehicle interior lighting device that illuminates a ceiling surface in a vehicle compartment of a conventional vehicle such as a passenger car. In FIG. 7, an illuminating lamp 72 (a room lamp or the like) for illuminating a vehicle interior 71 of a vehicle 70 such as a passenger car is usually attached to a substantially central portion 73a of a ceiling surface 73 in the vehicle interior or in the vicinity thereof (for example, (Japanese Utility Model Publication No. 54-3759), lighting
All or part of 72 is made of a material such as a resin having a diffusion and transmission characteristic, and the vehicle interior 71 is irradiated with illumination light to illuminate the vehicle interior 71.

Therefore, the vicinity of the illumination lamp 72 attached to the substantially central portion 73a of the ceiling surface 73 becomes bright, and the portion away from the illumination lamp 72, that is, the peripheral portion 73b is darker than the substantially central portion 73a.

Since the illuminating lamp 72 is attached directly to the ceiling surface 73 or indirectly to a reinforcing member or the like, the illuminating lamp 72 is often exposed from the ceiling surface 73.

[Problems to be Solved by the Invention]

However, since the illuminating lamp 72 is attached to the substantially central portion 73a of the ceiling surface 73 of the vehicle interior 71 or its vicinity as described above, the vicinity of the illuminating lamp 72 attached to the substantially central portion 73a of the ceiling surface 73 is While it becomes brighter, the part away from the lighting 72, that is, the peripheral part 73b becomes darker than the central part 73a, not only gives a feeling that the space of the passenger compartment 71 is narrow, but the lighting 72 projects from the ceiling 73. By being
Further, the space in the vehicle interior 71 gives a feeling of being narrow, and its improvement is desired.

Further, since the illumination light is directly emitted from the illumination lamp 72 to the vehicle interior 71, the light emitting portion of the illumination lamp 72 is reflected by the inside rearview mirror 74 or the front wind panel 75 as shown by an arrow a in FIG. The driver's 76 visual field is in sight, or the light emitting part of the illumination lamp 72 is directly in the passenger's 77 visual field as shown by the arrow b in FIG. 7, which is visually dazzling and annoying. May give you Further, as shown by an arrow c in FIG. 7, there is a possibility that the light of the light emitting portion of the illuminating lamp 72 may enter the visual field of the driver or the passenger of the following vehicle through the rear wind panel 78. For this reason, the illumination lamp 72 is normally turned off during night driving to improve the forward visibility and to avoid annoying the following vehicles. 77) not only gives a sense of narrowness of the passenger compartment 71 but also gives anxiety caused by the darkness.
In addition, the positions of the switches are not known, and the operability and visibility of the switches are deteriorated. Further, it is desired to improve such that even a luxurious atmosphere produced by a high-grade material used for an interior member (not shown) of the vehicle interior 71 is hard to feel.

Therefore, according to the present invention, the interior of a vehicle, such as a passenger car, which can give a passenger a sense of spaciousness and at the same time give the passenger a sense of security without giving the passenger any discomfort due to glare or annoyance, is illuminated. An object is to provide a vehicle interior lighting device.

[Structure of Invention]

In order to achieve such an object, the present invention provides: (1) A vehicle interior lighting device includes: a first lighting lamp that is supported above the eyepoint and in a peripheral portion of the ceiling surface or in the vicinity of the ceiling surface in the vehicle interior. , A second illuminating lamp supported at a position facing the switches on the wall surface of the door, and a third illuminating lamp supported between or near the floor surface and the seat cushion, wherein the first illuminating lamp comprises: The irradiation range of the direct illumination light is limited to only the ceiling surface including at least the front and rear, right and left central portions of the ceiling surface, and the luminance of the peripheral portion of the ceiling surface is brighter than the luminance of the central portion of the ceiling surface, The second illuminating lamp has an irradiation range of the direct illuminating light only on at least the surface of the wall surface of the door arranged at a position downward from above, and the third illuminating lamp has an irradiating range of the direct illuminating light. Floor and Only a lower than the arrangement position of the third lamp, said first lamp, a second lamp and a third lamp, characterized in that they are always turned on while driving.

(2) As a vehicle interior lighting device, in a vehicle interior, a first illumination lamp supported above the eye point and at a peripheral portion of the ceiling surface or in the vicinity of the ceiling surface, and a position facing the switches on the wall surface of the door. A second illuminating lamp supported, a third illuminating lamp supported between or near the floor surface and the seat cushion, and a fifth illuminating lamp supported at a position above the eye point and above the ceiling surface. Comprises the first
The lighting range of the direct illumination light is before and after the ceiling surface.
Only the ceiling surface including at least the respective left and right central portions is provided, and the luminance of the peripheral portion of the ceiling surface is made brighter than the luminance of the central portion of the ceiling surface, and the second illumination lamp controls the irradiation range of the direct illumination light. Only at least the surface of the wall surface of the door arranged from the upper side to the lower side is provided, and the third illumination lamp has a direct illumination light irradiation range of the floor and the third illumination lamp.
The fifth illuminating lamp is only below the arranging position of the illuminating lamp, and the fifth illuminating lamp has only the irradiation range of the direct illuminating light on and around the cluster audio surface, and the first illuminating lamp, the second illuminating lamp,
The third illumination light and the fifth illumination light are constantly lit during traveling.

[Action]

Therefore, according to claim 1, since it has such a structure, the first illuminating lamp to the third illuminating lamp are constantly lit even during traveling, so that the synergistic effect of the first illuminating lamp to the third illuminating lamp causes It has a unique effect of giving a feeling of spaciousness, giving a sense of security, improving the operation feeling and visibility of switches, giving a luxurious atmosphere, and not giving discomfort due to glare and annoyance.

That is, the fact that the direct illumination light irradiation range of the first illumination lamp is limited to the ceiling surface gives a sense of security that the interior of the vehicle is not completely dark at night, and the direct illumination light irradiation range is limited to the ceiling surface. (In other words, the light is not visible to the eye) does not cause discomfort due to glare or annoyance.

In addition, the second illumination lamp, the irradiation range of the direct illumination light,
By facing downwards and the surface of the wall surface of the door, it gives a sense of security that the interior of the vehicle is not dark at night, and by notifying the position of the switch installed on the wall surface of the door, The feeling of operation and visibility are improved, and the material of the surface of the wall surface of the door is turned on to give a luxurious atmosphere, and the light does not enter the eyes, so that no discomfort due to glare or annoyance is given.

In addition, the third illuminating lamp, the irradiation range of the direct illumination light,
By setting the position of the third illumination light below, it gives a feeling of spaciousness of the foot space because the feet are brighter than the surroundings, and it is easy to find what you have dropped or things that were dropped due to the fact that the interior of the vehicle is not dark at night give.

According to claim 2, the first illuminating lamp to the third illuminating lamp and the fifth illuminating lamp are constantly lit during traveling, so that a synergistic effect of the first illuminating lamp to the third illuminating lamp and the fifth illuminating lamp is obtained. The first illumination lamp to the third illumination lamp and the fifth illumination lamp are always lit during traveling, and thus, the present invention provides a synergistic effect of the first illumination lamp to the third illumination lamp and the fifth illumination lamp.
It has a unique effect of giving a feeling of spaciousness, giving a sense of security, improving the operation feeling and visibility of switches, giving a luxurious atmosphere, and not giving discomfort due to glare and annoyance.

That is, the fact that the direct illumination light irradiation range of the first illumination lamp is limited to the ceiling surface gives a sense of security that the interior of the vehicle is not completely dark at night, and the direct illumination light irradiation range is limited to the ceiling surface. (In other words, the light is not visible to the eye) does not cause discomfort due to glare or annoyance.

In addition, the second illumination lamp, the irradiation range of the direct illumination light,
By facing downwards and the surface of the wall surface of the door, it gives a sense of security that the interior of the vehicle is not dark at night, and by notifying the position of the switch installed on the wall surface of the door, The feeling of operation and visibility are improved, and the material of the surface of the wall surface of the door is turned on to give a luxurious atmosphere, and the light does not enter the eyes, so that no discomfort due to glare or annoyance is given.

In addition, the third illuminating lamp, the irradiation range of the direct illumination light,
By placing it below the position of the 3rd lighting, it gives a feeling of expanse of the foot space because the feet are brighter than the surroundings, and it is easy to find the objects dropped or placed due to the fact that the interior of the vehicle is not dark at night give.

In addition, the fifth illumination lamp, the irradiation range of the direct illumination light,
By providing only the cluster audio surface and its surroundings, the position of the switches is notified to improve the operational feeling and visibility of the switches, and the material feeling of the cluster audio surface and its surroundings is enhanced, giving a high-quality interior material. Giving it a luxurious feel.

〔Example〕

The structure of one embodiment of the present invention will be described with reference to FIGS.

Reference numeral 1 in the figure denotes a vehicle interior lighting device, and the vehicle interior lighting device 1
Is a driver of the front seat 3 which is the first illuminating lamp supported in the four corners 6b around the ceiling surface 6 above the line 5 connecting the eyepoints EP of the front seat 3 and the rear seat 4 respectively. Seat side illumination light 7, front seat 3 near passenger seat illumination 8, rear seat 4 driver seat rear illumination light 9 and rear seat 4 rear passenger seat illumination light 10, and door 11 on the passenger compartment 2 side. The second illuminating lamp 14 arranged inside the inside handle escutcheon 13 supported by the door trim 12 which is a wall so as to face the switches.
And the vehicle body between the floor surface 15 and the seat cushion 16 of the rear seat 4.
Third lighting 19 supported by 17 third cross members 18
And consists of.

As shown in FIG. 3, the first illuminating lamps 7 to 10 have an irradiation range 20 of the direct illumination light only on the ceiling surface 6 including at least the front and rear, right and left central portions 6a of the ceiling surface 6. The brightness of the peripheral portion 6b of the ceiling surface 6 is made brighter than the brightness of the central portion 6a of the ceiling surface 6, and the second illumination lamp 14 controls the irradiation range 21 of its direct illumination light as shown in FIG. , Only at least the surface of the door trim 12 arranged at a position downward from above, and the third illumination lamp 19 has an irradiation range 22 of the direct illumination light, as shown in FIG. Only below the position where the third illumination lamp 19 is arranged.

Next, the structure of the first illumination lamps 7 to 10 will be described with reference to FIG. Since the first illumination lamps 7 to 10 have the same structure, only the reference numeral 7 will be described as a representative. The front pillar trim 30 is arranged so as to cover the end portion 6c of the peripheral portion 6b of the ceiling surface 6, and the front pillar trim 30 is provided.
30 is supported on the front pillar inner panel 32 by means not shown. A gap 31 in the front-rear direction is formed between the front pillar trim 30 and the end 6c of the peripheral portion 6b of the ceiling surface 6, and the lens 33 is exposed. The lens
33 is supported by a housing 35 containing a valve 34, and the housing 35 is supported by the front pillar inner panel 32 by means not shown. The valve 34
Is connected to a vehicle width light switch and a power source by a harness (not shown), and the on / off control is performed by turning the vehicle width light switch ON / OFF. That is, the valve 34 is constantly lit during traveling. The reference numeral 36 in FIG. 1 is called a rear pillar trim. Reference numeral 37 is called a center pillar trim.

Next, the structure of the second illumination lamp 14 will be described with reference to FIG. A gap 40 in the left-right range is formed between the rear surface of the inside handle escutcheon 13, that is, the surface on the door trim 12 side and the door trim 12, and the lens 41 is exposed. The lens 41 is supported by a housing 43 containing a valve 42, and the housing 43 is supported by a door inner panel 44 on which the door trim 12 is supported. The valve 42 is connected to a side light switch and a power source by a harness (not shown), and the ON / O of the side light switch is turned on and off.
Control of turning on / off is performed by FF. When the valve 42 is turned off, the switch 47 of the power window switch unit 46 supported by the armrest 45 is illuminated. Since this irradiation light is covered by the inside handle escutcheon 13, it cannot be seen from the vehicle interior 2 side and is not dazzling. The armrest 45 is the door trim.
It is supported by the door inner panel 44 via 12.
As shown in FIG. 1, the inside handle 48 is within the range surrounded by the inside handle escutcheon 13.
Is provided. Reference numeral 49 is a pull handle handle of the armrest 45.

Next, the structure of the third illumination lamp 19 will be described with reference to FIG. A bracket 50 is fixed to the third cross member 18 with screws 51, a housing 53 is supported by an opening 52 of the bracket 50, and a valve 54 is built in the housing 53. The valve 54 is connected to a vehicle width light switch and a power source by a harness (not shown), and the on / off control is performed by turning on / off the vehicle width light switch. In addition, a lens 55 is disposed in the opening 52 of the housing 53, and the valve 54
Illuminate the light of. And the lens from the top of the lens 55
By covering the approximately center of 55 with the cover 56, the irradiation range is limited as described above. An insulator 57 and a carpet 58 are arranged on the floor 15 and the third cross member 18.

Reference numeral 60 shown in FIG. 1 is a fourth illuminating lamp, which is supported on the lower side of the instrument lower cover 61, and its irradiation range is shown by reference numeral 62.

Therefore, according to this structure, as shown in FIG.
The luminance distribution characteristic on the ceiling surface 6 obtained by the experiment of the present embodiment with the arrangement of the first illumination lamps 7 to 10 is shown.

As described above, the first illumination lamp 7 is provided on the peripheral portion 6b of the ceiling surface 6.
~ 10 are provided, and the brightness level of the central portion 6a of the ceiling surface 6 is 0.1.
Whereas a ~0.5cd / m ^2, by the brightness level of the surrounding site 6b is brighter 170,160,95,92cd / m ^2, it can be widely perceive ceiling surface 6. The reason for this is as follows. That is, in a general indoor living space, the central portion 6a is brighter than the peripheral portion 6b rather than the central portion 6b.
It is known that making the surrounding area 6b brighter than 6a allows the living space to be perceived more widely (see the Lighting Society Edition; Writing Handbook P.267, Figures 11 and 32 and P.431, Figures 19 and 12). The room 2 is often smaller than a general indoor living space, but even in this case, the same effect, that is, the spread can be perceived by applying the above idea. Further, the reason why the brightness ratio between the central portion 6a and the peripheral portion 6b is 10: 1 or more is as follows.

In general offices, it is recommended that the brightness ratio of the brightness of the object to be viewed (mainly what you want to see) on the desk top surface to the brightness of its surroundings is 10: 1 or less (ideally 3: 1 or less). Yes (Editing by the Lighting Society; Writing Handbook P.252 Table 1
See 1.2). It is said that with this brightness ratio, a substantially comfortable work environment can be set. However, considering the condition of the passenger compartment 2, there is no need to constantly perform visual work like in an office, so even if the above luminance ratio is set to 10: 1 or more, it is acceptable as long as it does not cause discomfort. Considering this, the ratio was set to 10: 1 or more in this example. By doing so, the spread can be perceived in the same manner as described above.

In the above, the brightness of the peripheral portion 2b is set to 200 cd / m ² or less for the following reason.

Now, considering the case of driving on a general road at night,
It is said that a driver or a passenger of a vehicle adapts to the brightness of the environment around the vehicle (eyes get used to the surrounding brightness) as a brightness level of about 1 to ² cd / m ² . In such a state, the brightness of the illumination lamp (mainly the light source) provided in the passenger compartment 2 is about 2,000 cd / m2 as brightness which gives the driver or passengers of the vehicle an uncomfortable feeling such as glare and annoyance. ² (Lighting Society of Japan; Writing Handbook P.255 Figure 1)
See 1.19).

Also, in a typical office, the brightness of the ceiling surface 6
Lc and lighting equipment (lighting lamp) attached to its ceiling surface 6
As an example of obtaining the relative relationship with the brightness L ₁ of the ceiling surface 6, the brightness ratio between the brightness Lc of the ceiling surface 6 and the brightness L _{1 of} the lighting fixture (illumination lamp) attached to the ceiling surface 6 is about 1:10. It is known that (Lighting Society Edition; Writing Handbook P.253 Figure 1
See 1 ・ 15). It is considered that this relationship can be substantially applied to the relationship between the ceiling surface 6 of the vehicle interior 2 and the lighting fixture (illumination lamp) attached to the ceiling surface 6.

From the above, it is considered appropriate to set the upper limit of the brightness of the peripheral portion 6b of the ceiling surface 6 to 2,000 cd / m ² ÷ 10 = 200 cd / m ² .

Further, the reason why the brightness of the central portion 6a of the ceiling surface 6 is set to 0.1 cd / m ² or more is that the limit value of the brightness at which the depth and the spread of the ceiling surface 6 can be visually confirmed is experimentally determined as shown in FIG. It is set from the result.

Further, since the human eye is focused on a brighter place than others, the second illumination lamp 14 brightly illuminates the wall surface of the vehicle, so that the lateral space expands. By brightly illuminating the floor surface 15 with 19, the spread of the foot space can be obtained.

Further, the place where the eyes of the occupant can be focused is not only provided in the horizontal direction, which is the normal line-of-sight direction, by the second illumination light 14, but is also provided in the vertical range by the first illumination light 7 to 10 and the third illumination light 19. As a result, the seated person can recognize the space (vertical direction) and feel the space there (references:
Lighting Society Edition; Writing Handbook P.430-19.
2).

Furthermore, by illuminating the 1st, 2nd, and 3rd illumination lamps 7 to 10, 14, and 19, the extremely dark part in the passenger compartment 2 is eliminated, and the entire visual field of the occupant can be appropriately brightened. Feelings such as anxiety and fear can not occur, and a sense of security can be given. At the same time, it is easy to find objects dropped or placed on the floor surface 15, which gives a sense of security.

Furthermore, the first illuminating lamps 7 to 10 illuminate the ceiling surface 6 with diffused light to make the user feel the smooth arch shape of the ceiling surface 6 and the goodness of the material of the ceiling surface 6, thereby making the vehicle interior 2 more attractive. By illuminating the cloth of the door trim 12 and the carpet 58, the second illuminating lamp 14 and the third illuminating lamp 19 can show the goodness of these materials and bring out a high-class interior member.

Further, even when the first, second and third illuminating lamps 7 to 10, 14, and 19 are illuminated, the lighting bulbs 34, 42, 54 and the lenses 33, 41, 55 include the front pillar trim 30, the inside handle escutcheon 13, and the cover 56. Since it is covered by, it is possible to prevent the light emitting part from directly entering the field of view of the occupant in the normal sitting posture and the field of view of the front, side, rear and inside rearview mirror 74 when the driver is driving. It is possible to turn on the indoor illumination lamp at all times, including during normal driving, because it avoids the hassle, does not hinder driving, and does not affect the following vehicles. And, it is possible to prevent glare (dazzle due to diffusion of light in the eyeball) due to light from a high-intensity light source, so that discomfort can be prevented and it is possible to prevent objects near the illumination lamp from becoming difficult to see (reference. Reference: Lighting Society, edited handbook, P.254-11.3.4).

Furthermore, since the 1st, 2nd, 3rd illumination lamps 7 to 10, 14, and 19 are stored, the appearance is neat and the protrusion is eliminated particularly in the central portion 6a on the ceiling surface 6, and the space in the vehicle interior 2 is widened. It will be available.

Next, the structure of another embodiment of the present invention will be described with reference to FIG. The main difference from the above embodiment of the present invention is that a fifth illuminating lamp 63 is added to the above embodiment of the present invention, and the other points are the same as the above embodiment. The fifth lighting 63
A decorative member 64 having an edge 64a locked therein is arranged in a through hole 6d in the front direction of the peripheral portion 6b of the ceiling surface 6, and the most concave portion 64b of the decorative member 64 is arranged.
The housing 65 is provided in the housing 65, and the illumination range 68 of the light of the bulb 67 arranged in the housing 65 via the lens 66 also provided in the most concave portion 64b depends on the size of the opening 64c of the decorative member 64.
The valve 67 is connected to a vehicle width light switch and a power source by a harness (not shown), and the on / off control is performed by turning on / off the vehicle width light switch. Further, reference numeral 69 is a center console box illuminated by the fifth illumination lamp 63, which includes a heater control 69a, an audio 69b,
The cluster audio surface 69c, the shift lever 69d, etc. are illuminated.

According to this embodiment, when the surroundings are darker than the above embodiments, the brightness ratio to the surroundings of the switch, the control panel, etc. which emits light is large, and thus the visual annoyance and the distance to the operation article are increased. It is difficult to understand the feeling, and there are problems such as not knowing the shape of the switch itself and the ON / OFF state.
With the fifth certification light 63, it disappears, and the operability and visibility of the switches are greatly improved. In addition, since the cluster audio surface 69c is arranged obliquely, the material feeling is enhanced, the interior member is made more luxurious, and it can be made more attractive.

[Effect]

As described above, according to the present invention, (1) As the vehicle interior lighting device, in the vehicle interior, a first illuminating lamp supported above the eye point and at a peripheral portion of the ceiling surface or in the vicinity of the ceiling surface. , A second illuminating lamp supported at a position facing the switches on the wall surface of the door, and a third illuminating lamp supported between or near the floor surface and the seat cushion, wherein the first illuminating lamp comprises: The irradiation range of the direct illumination light is limited to only the ceiling surface including at least the front and rear, right and left central portions of the ceiling surface, and the luminance of the peripheral portion of the ceiling surface is brighter than the luminance of the central portion of the ceiling surface, The second illuminating lamp sets the irradiation range of the direct illuminating light only on at least the surface of the door trim arranged at a position facing downward from above, and the third illuminating lamp sets the irradiation range of the direct illuminating light on the floor. Face and face Only a lower than the arrangement position of the third lamp, said first lamp, a second lamp and a third lamp, characterized in that they are always turned on while driving.

(2) As a vehicle interior lighting device, in a vehicle interior, a first illumination lamp supported above the eye point and at a peripheral portion of the ceiling surface or in the vicinity of the ceiling surface, and a position facing the switches on the wall surface of the door. A second illuminating lamp supported, a third illuminating lamp supported between or near the floor surface and the seat cushion, and a fifth illuminating lamp supported at a position above the eye point and above the ceiling surface. Comprises the first
The lighting range of the direct illumination light is before and after the ceiling surface.
Only the ceiling surface including at least the respective left and right central portions is provided, and the luminance of the peripheral portion of the ceiling surface is made brighter than the luminance of the central portion of the ceiling surface, and the second illumination lamp controls the irradiation range of the direct illumination light. Only at least the surface of the wall surface of the door arranged from the upper side to the lower side is provided, and the third illumination lamp has a direct illumination light irradiation range of the floor and the third illumination lamp.
The fifth illuminating lamp is only below the arranging position of the illuminating lamp, and the fifth illuminating lamp has only the irradiation range of the direct illuminating light on and around the cluster audio surface, and the first illuminating lamp, the second illuminating lamp,
Since the third illuminating lamp and the fifth illuminating lamp are constantly lit during traveling, according to claim 1, the first to third illuminating lamps are always lit during traveling. Therefore, due to the synergistic effect of the first to the third lighting,
It has a unique effect of giving a feeling of spaciousness, giving a sense of security, improving the operation feeling and visibility of switches, giving a luxurious atmosphere, and not giving discomfort due to glare and annoyance.

That is, the fact that the direct illumination light irradiation range of the first illumination lamp is limited to the ceiling surface gives a sense of security that the interior of the vehicle is not completely dark at night, and the direct illumination light irradiation range is limited to the ceiling surface. (In other words, no light gets into your eyes) does not cause discomfort due to glare or annoyance.

In addition, the second illumination lamp, the irradiation range of the direct illumination light,
By facing downwards and the surface of the wall surface of the door, it gives a sense of security that the interior of the vehicle is not dark at night, and by notifying the position of the switch installed on the wall surface of the door, The feeling of operation and visibility are improved, and the material of the surface of the wall surface of the door is turned on to give a luxurious atmosphere, and the light does not enter the eyes, so that no discomfort due to glare or annoyance is given.

In addition, the third illuminating lamp, the irradiation range of the direct illumination light,
By placing it below the position of the 3rd lighting, it gives a feeling of expanse of the foot space because the feet are brighter than the surroundings, and it is easy to find the objects dropped or placed due to the fact that the interior of the vehicle is not dark at night give.

According to claim 2, the first illuminating lamp to the third illuminating lamp and the fifth illuminating lamp are constantly lit during traveling, so that a synergistic effect of the first illuminating lamp to the third illuminating lamp and the fifth illuminating lamp is obtained. As a result, the first to third illumination lights and the fifth illumination light are always turned on even while the vehicle is traveling, and the present invention is broadened by the synergistic effect of the first to third illumination lights and the fifth illumination light. It has a unique effect of giving a feeling, giving a sense of security, improving the operation feeling and visibility of switches, giving a luxurious atmosphere, and not giving discomfort due to glare and annoyance.

That is, the fact that the direct illumination light irradiation range of the first illumination lamp is limited to the ceiling surface gives a sense of security that the interior of the vehicle is not completely dark at night, and the direct illumination light irradiation range is limited to the ceiling surface. (In other words, the light is not visible to the eye) does not cause discomfort due to glare or annoyance.

In addition, the second illumination lamp, the irradiation range of the direct illumination light,
By facing downwards and the surface of the wall surface of the door, it gives a sense of security that the interior of the vehicle is not dark at night, and by notifying the position of the switch installed on the wall surface of the door, The feeling of operation and visibility are improved, and the material of the surface of the wall surface of the door is turned on to give a luxurious atmosphere, and the light does not enter the eyes, so that no discomfort due to glare or annoyance is given.

In addition, the third illuminating lamp, the irradiation range of the direct illumination light,
By placing it below the position of the 3rd lighting, it gives a feeling of expanse of the foot space because the feet are brighter than the surroundings, and it is easy to find the objects dropped or placed due to the fact that the interior of the vehicle is not dark at night give.

In addition, the fifth illumination lamp, the irradiation range of the direct illumination light,
By providing only the cluster audio surface and its surroundings, the position of the switches is notified to improve the operational feeling and visibility of the switches, and the material feeling of the cluster audio surface and its surroundings is enhanced, giving a high-quality interior material. Giving it a luxurious feel.

[Brief description of drawings]

FIG. 1 is a front view showing a side of a passenger compartment of a vehicle according to an embodiment of the present invention, FIG. 2 is a luminance distribution diagram of a ceiling surface of the present invention, and FIGS. 3 to 5 are respectively FIG. Sectional views taken along lines aa, bb and cc of FIG. 6, FIG. 6 is a view corresponding to FIG. 1 according to another embodiment of the present invention, and FIG. 7 is a conventional vehicle interior lighting device. It is a schematic explanatory drawing which shows an attachment state. 1 ... vehicle interior lighting device, 2 ... vehicle interior, 6 ... ceiling surface,
6a and 6b …… Center and peripheral parts of the ceiling surface, 7-10
...... First illumination light, 11 ...... Door, 12 ...... Wall door trim, 14 ...... Second illumination light, 15 ...... Floor surface, 16 ...... Seat cushion, 19 ...... Third illumination light, 63 ...... Fifth lighting, EP ...
Eye point.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Izumi Okamura 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (72) Inventor Shigeta Lighting, 1006 Kadoma, Kadoma City, Osaka Prefecture 72) Inventor Yoshinori Tanabe, 1006 Kadoma, Kadoma City, Osaka Prefecture, Matsushita Electric Industrial Co., Ltd. (56) References: 63-189835 (JP, U), 61-189859 (JP, U) 2-75215 (JP, U) Actual opening 62-189251 (JP, U) Actual opening 3-91836 (JP, U) Actual opening 63-67355 (JP, U) Actual opening 1-15542 (JP, Y2)

Claims (2)

[Claims] 1. A first illuminating lamp, which is supported above the eye point and in a peripheral portion of the ceiling surface or in the vicinity of the ceiling surface in a vehicle interior, and a first illuminating lamp which is supported at a position facing switches on a wall surface of a door. Two illumination lamps and a third illumination lamp supported between the floor surface and the seat cushion or in the vicinity thereof are provided, and the first illumination lamp covers the irradiation range of the direct illumination light from the front, rear, left and right of the ceiling surface. The brightness of the peripheral part of the ceiling surface is made brighter than the brightness of the central part of the ceiling surface while only the ceiling surface including at least each of the central parts is provided, and the second illumination lamp has an irradiation range of the direct illumination light, Only at least the surface of the wall surface of the door arranged at a position downward from above, and the third illumination lamp has an irradiation range of the direct illumination light only below the floor surface and the arrangement position of the third illumination lamp. , The first illumination light, the second illumination light The vehicle interior lighting device is characterized in that the third illuminating lamp is constantly lit during traveling. 2. A first illuminating lamp, which is supported above the eye point and in a peripheral portion of the ceiling surface or in the vicinity of the ceiling surface in a vehicle interior, and a first illuminating lamp which is supported at a position facing switches on a wall surface of the door. Two illumination lights, a third illumination light supported between or near the floor surface and the seat cushion, and a fifth illumination light supported above the eyepoint and above the ceiling surface, The first illuminating lamp has an irradiation range of the direct illuminating light only on the ceiling surface including at least the front, rear, left and right central portions of the ceiling surface, and the luminance of the peripheral portion of the ceiling surface is lower than that of the central portion of the ceiling surface. The second illuminating lamp is made to be bright, and the irradiation range of the direct illuminating light is only at least the surface of the wall surface of the door arranged at a position downward from above, and the third illuminating lamp is the direct illuminating thereof. The irradiation range of the light, the floor And only below the position where the third illuminating lamp is arranged, and in the fifth illuminating lamp, the irradiation range of the direct illuminating light is only the cluster audio surface and its periphery, and the first illuminating lamp, the second illuminating lamp, and the second illuminating lamp.
An illumination device for a vehicle interior, wherein the illumination light, the third illumination light, and the fifth illumination light are constantly lit during traveling.