JP2005306233A - Vehicle indoor lighting device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To cause a crew to feel a spacial wide-range and calm state. <P>SOLUTION: There are provided lighting units 20 for lighting a ceiling surface which are extended linearly along the forward or rearward direction at the right and left sides of the ceiling in the indoor part of a vehicle. There is provided a vehicle indoor lighting device 1 where an intensity of illumination near a location above the head of a crew in a lighting range at the ceiling surface by the lighting unit is lower as compared with that of other locations. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a novel vehicle interior lighting device. Specifically, the present invention relates to a technology that gives passengers a calm feeling.

  2. Description of the Related Art In order to create an indoor atmosphere in a vehicle, for example, an automobile, indirect lighting of a ceiling is performed.

  Patent Document 1 discloses a vehicle interior illumination device for such indirect illumination.

JP 2001-138808 A

  However, the vehicle interior lighting device disclosed in Patent Document 1 merely illuminates the entire ceiling surface of the vehicle, and does not allow the passenger to feel a spatial spread. There wasn't.

  Then, this invention makes it a subject to make a passenger | crew feel spatially and to feel calm.

  In order to solve the above-described problem, the vehicle interior lighting device of the present invention includes an illuminator that extends linearly along the front-rear direction and illuminates the ceiling surface on the left and right sides of the ceiling in the vehicle interior. The illuminance near the occupant's head in the illumination range of the ceiling surface by the vessel is made lower than other parts.

  Therefore, in the vehicle interior lighting device of the present invention, a calm feeling can be given to the occupant.

  The vehicle interior illumination device according to the present invention is a vehicle interior illumination device including an illuminator that extends linearly along the front-rear direction and illuminates the ceiling surface on the left and right side portions of the ceiling portion in the vehicle interior. In the illumination range of the ceiling surface by the vessel, the illuminance near the occupant's head is low compared to other parts.

  Therefore, in the vehicle interior lighting device of the present invention, by illuminating the ceiling while avoiding the overhead of the occupant, the occupant feels that the ceiling is high, and feels that there is a spatial spread, thereby , Can make you feel calm.

  In the invention described in claim 2, since the illuminator extending linearly in the front-rear direction is also provided in the central portion of the ceiling portion, it is possible to perform illumination according to the occupant's boarding position. I can do it.

  In the invention described in claim 3, since the illuminator comprises a plurality of light emitting diodes and a prism lens for controlling the light of the light emitting diodes, it is possible to perform illumination according to the occupant's boarding position.

  In the invention described in claim 4, since the illuminator comprises a light guide that extends linearly and a light emitting diode that introduces light into the light guide from the end of the light guide, Illumination according to the position can be performed.

  The best mode for carrying out the vehicle interior lighting device of the present invention will be described below with reference to the accompanying drawings.

  1 to 3 show a first embodiment of a vehicle interior lighting device according to the present invention.

  As shown in FIGS. 3 and 4, the vehicle interior lighting device 1 is configured by illuminators 20 and 20 disposed on both left and right sides of the ceiling of the interior of the automobile 10.

  As shown in FIGS. 1 and 2, the illuminator 20 includes a plurality of linearly arranged light emitting diodes 21, 21,... And a prism that controls light from the light emitting diodes 21, 21,. Lens 22. The light emitting diodes 21, 21,... Are mounted on a circuit board 23 formed in a band shape, and the circuit board 23 is supported by a back cover 24. And the prism lens 22 is attached so that the front surface of the back cover 24 may be covered, and the illuminator 20 is comprised by this.

  FIG. 5 shows another example of the illuminator. The illuminator 30 is a transparent light guide 31 and a light emitting diode for introducing light into the light guide 31 from the end surfaces 31a and 31a of the light guide 31. 21, 21. That is, the light guide 31 is made of a transparent material and is formed in a bar shape that is long in the front-rear direction, and the light emitting diodes 21 and 21 are disposed to face the end faces 31 a and 31 a of the light guide 31. Therefore, the light from the light emitting diodes 21 and 21 is introduced into the light guide 31 from the end faces 31 a and 31 a, and the light internally reflected by the rear surface of the light guide 31 is irradiated to the front of the light guide 31. In order to efficiently emit light introduced into the light guide 31 forward, fine reflecting means 31b and 31b are formed on the rear surface of the light guide 31 as shown in an enlarged manner in the drawing portion of FIG. ... May be formed.

  And as above-mentioned, a ceiling surface is illuminated by the illuminator 20, 20, or 30, 30 arrange | positioned at the right-and-left both sides of a ceiling part. At that time, the illumination light is controlled so that the illuminance in the vicinity of the head of the passenger is lower than the illuminance in other portions. This allows the occupant to feel that his head is dark and the surroundings are bright, and thus he feels the spatial depth above his head, that is, the ceiling is high, and as a result is in a large space. You can feel the atmosphere and create a calm image.

  Moreover, it is preferable that it is 5 lux or less near the driver's headrest. This makes the driver feel as if there is a spatial spread without being dazzled, and can make him feel calm.

  Preferably, the light that illuminates the ceiling is amber, blue, or a combination of both. This can make the passengers feel more calm. And when making illumination light into amber color, it can achieve by making the said prism lens 22 and the light guide 31 into amber color, for example.

  The illuminator extending linearly in the front-rear direction can also be provided at the center of the ceiling. For example, in addition to the illuminators 20, 20 or 30, 30 provided on the left and right sides of the ceiling part, the illuminators 20, 20 are provided on the left and right side edges of the overhead console 40 provided at the position shown in FIG. 6 of the ceiling part. Alternatively, 30, 30 may be provided. Map lamps 41, 41,... Are provided at both front and rear ends of the overhead console 40, and openings 42, 42 (only one is shown in FIG. 7) are provided on the left and right side surfaces. The illuminators 20, 20 or 30, 30 are arranged at 42, 42.

  And, by the illuminators 20, 20 or 30, 30 disposed on the left and right sides of the overhead console 40 and the illuminators 20, 20 or 30, 30 disposed on the left and right sides of the ceiling as described above, Illumination as shown by an iso-illuminance curve 50 is performed in FIG. That is, the illuminance of the central portions 61 and 61 in the left and right direction of the portions 60 and 60 divided into the left and right by the overhead console 40 in the ceiling surface of the automobile is the lowest (dark), and the left and right side portions 62 of the portions 60 and 60 are the same. , 62,... Has the highest (bright) illuminance, and the portions between these two portions 61, 61 and 62, 62,... Are 63, 63,. The illuminance gradually decreases from a portion close to... To a portion close to the central portions 61 and 61. This allows the occupant to feel that his head is dark and the surroundings are bright, and thus he feels the spatial depth above his head, that is, the ceiling is high, and as a result is in a large space. You can feel the atmosphere and create a calm image.

  As described above, a calm atmosphere can be given to the occupant by applying the vehicle interior lighting device of the present invention.

  It should be noted that the specific items shown in the above-described embodiment are not limited to the specific examples of implementation in carrying out the present invention, and thus the technical scope of the present invention is limitedly interpreted. It should not be done.

  It is suitable for use in a vehicle that gives a passenger a sense of comfort.

1 to 5 show a first embodiment of a vehicular interior lighting device of the present invention, and this figure is a schematic cross-sectional view of an illuminator. FIG. 2 is a partially omitted cross-sectional view taken along line II-II in FIG. 1. It is a schematic plane perspective view of the motor vehicle which shows the arrangement position of an illuminator. It is a schematic side perspective view of the motor vehicle which shows the arrangement position of an illuminator. It is a schematic plan view which abbreviate | omits and shows a modification of an illuminator. FIG. 7 shows a second embodiment of the vehicle interior lighting device of the present invention together with FIG. 7, which is a schematic plan perspective view of an automobile showing the position of an illuminator. It is a schematic perspective view which shows the illumination state of a ceiling surface.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Indirect lighting device for vehicles, 20 ... Illuminator, 21 ... Light emitting diode, 22 ... Prism lens, 30 ... Illuminator, 31 ... Light guide, 31a ... End surface (end part)

Claims (4)

A vehicle interior lighting device including an illuminator that extends linearly along the front-rear direction on the left and right sides of a ceiling portion in a vehicle compartment and illuminates the ceiling surface,
The vehicle interior lighting device characterized in that the illuminance in the vicinity of the occupant's head is lower than the other portions in the illumination range of the ceiling surface by the illuminator. The vehicle interior lighting device according to claim 1, wherein an illuminator extending linearly along the front-rear direction is also provided at a central portion of the ceiling portion. The vehicle interior lighting device according to claim 1, wherein the illuminator includes a plurality of light emitting diodes and a prism lens that controls light of the light emitting diodes. 3. The vehicle according to claim 1, wherein the illuminator includes a light guide that extends linearly and a light emitting diode that introduces light into the light guide from an end of the light guide. 4. Interior lighting device.

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