JP2005306232A - Vehicle indoor lighting device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable a mental feeling of tension to be given to a driver through an indirect lighting. <P>SOLUTION: Either a linear lighting unit 20 or 30 for radiating light from a light emitting diode toward a slant upward direction through a prism lens is arranged at a location lower than an eye position of a driver at an inner surface 11 of a door 10 for opening or closing a side part of a driver's seat of a vehicle and then its intensity of illumination is 0.1 luxs or less near the head rest of the driver's seat. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a novel vehicle interior lighting device. More specifically, the present invention relates to a vehicle interior lighting device equipped on the inner surface of a door that opens and closes a side surface of a driver's seat.

  Indirect illumination devices may be used in addition to direct illumination devices such as map lamps in the interior of vehicles such as automobiles.

  Patent Document 1 discloses an indirect lighting device that is disposed on a ceiling in an automobile interior.

JP 2001-138808 A

  By the way, the indirect lighting device shown in Patent Document 1 is provided on the ceiling and is intended to form an image of an occupant other than the driver by using indirect illumination light obtained by illuminating the ceiling surface. It is not intended for drivers.

  Then, this invention makes it a subject to implement | achieve the indirect illumination for giving a feeling of tension to a driver | operator for a driver | operator.

  In order to solve the above-described problems, the vehicle interior lighting device according to the present invention emits light obliquely upward to a position below the driver's eye position on the inner surface of the door that opens and closes the side of the driver's seat of the vehicle. A linear illuminator for irradiating the light is arranged.

  Therefore, in the vehicle interior illumination device of the present invention, the driver can visually recognize a linear bright portion below the side surface.

  The vehicle interior lighting device of the present invention is a linear illuminator that irradiates light obliquely upward to a position below the position of the driver's eyes on the inner surface of the door that opens and closes the side of the driver's seat of the vehicle It is characterized by comprising.

  Therefore, in the vehicle interior illumination device of the present invention, the driver can visually recognize a linear bright portion below the side surface. Therefore, the driver receives illumination from a direction different from the normal direction, is conscious of being in an environment different from normal time, and is expected to drive with a sense of tension.

  Further, when the door is opened, the light of the light emitting diode can be visually recognized from the succeeding vehicle or the like, and this can alert the driver or the like of the succeeding vehicle or the like.

  In the invention described in claim 2, since the illuminator is arranged so as to be substantially along the front-rear direction, the light of the illuminator from the driver can be obtained even if the position of the seat of the driver seat is shifted back and forth. Can be visually recognized.

  In the invention described in claim 3, since the illuminator comprises a light guide extending linearly and a light emitting diode for introducing light into the light guide from the end of the light guide, The installation space is small and power is saved.

  In the invention described in claim 4, since the illuminator comprises a plurality of light emitting diodes and a prism lens for controlling the light of the light emitting diodes, the installation space for the illuminator can be reduced and power can be saved. .

  In the invention described in claim 5, since the illuminance by the illuminator is 0.1 lux or less in the vicinity of the headrest of the driver's seat, it is possible to give a sense of tension without dazzling the driver.

  The best mode for carrying out the present invention will be described below with reference to the accompanying drawings.

  The vehicular interior lighting device 1 includes an illuminator 20 that extends linearly at a position below an inner surface 11 of a door 10 that opens and closes a side surface of a driver's seat of an automobile. The illuminator 20 includes a plurality of light emitting diodes 21, 21,... And a prism lens 22 covering the front surface thereof, and light from the illuminator 20 is irradiated obliquely upward as indicated by an arrow in FIG. The More specifically, as shown in FIGS. 3 and 4, the light emitting diodes 21, 21,... Are mounted on a circuit board 23 formed in a belt 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 and 21 (only one is shown in FIG. 5). 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. The light emitting diodes 21 and 21 are disposed in the cases 40 and 40. The case 40 includes a case main body 41 and a cover 42. The case main body 41 has a rectangular box shape with an open rear surface, and a front surface portion is formed with a hole 41a. Mounting pieces 41b and 41b projecting in opposite directions are formed at the lower end of the side surface of the case body 41, and mounting holes 41b 'and 41b' are formed in the mounting pieces 41b and 41b. The light emitting diode 21 is mounted on the circuit board 43, and the circuit board 43 is mounted so as to cover the rear surface opening of the case body 41, so that the light emitting diode 21 faces the front from the facing hole 41a. The The cover 42 has a concave shape as viewed from above, and the cover 42 is attached to the case main body 41 so as to cover the rear surface and cover both side surfaces from the outside, thereby forming the case 40. Then, electric power is supplied to the circuit board 43 through the cable 44 led out from the case 40, and the light emitting diode 21 is turned on by the electric power.

  The both end portions of the light guide 31 are inserted into the facing holes 41a and 41a of the cases 40 and 40, and the end surfaces 31a and 31a are opposed to the light emitting diodes 21 and 21 in the cases 40 and 40, respectively. Therefore, when the light-emitting diodes 21 and 21 are turned on, the light is introduced into the light guide 31 from the end faces 31a and 31a of the light guide 31, and the light internally reflected in the light guide 31 is the light guide. Irradiated obliquely upward from 31. In addition, it is possible to form a reflection means such as fine irregularities on the inner surface facing the emission surface of the light guide 31 so that the light introduced into the light guide 31 is efficiently emitted obliquely upward. good.

  As shown in FIG. 2, the driver 50 receives illumination light from obliquely below by the vehicle interior lighting device 1. For this reason, it receives illumination from a direction completely different from the normal state, and is conscious of being in an environment different from that of normal time, and thereby, the driver is expected to feel a sense of tension. When the driver drives with moderate tension, it can be expected that attention will be paid to the surroundings, and thus safe driving can be expected.

  And since the illuminator 20 or 30 is linearly extended in the front-rear direction, even when the position of the driver's seat is shifted back and forth, the light of the illuminator 20 or 30 is reliably directed to the driver. Is irradiated.

  In order to give the driver an appropriate feeling of tension, light having a color temperature of around 5,500 K, which is the color of the sun at noon in a fine weather, is effective. It is preferable to use a white light emitting diode having a color temperature of around 500K. Further, in order to give the driver a feeling of tension as described above, there is no effect if the illumination light is too bright or too dark, and the illuminance near the headrest of the seat of the driver 20 is 0.1 lux. Hereinafter, it is preferably 0.05 to 0.09 lux. If it becomes 0.05 lux or less, the door knob 12 cannot be sufficiently visually recognized only by the illumination of the illuminator 20 or 30, and inconvenience is felt at the time of getting off.

  By making the illuminance in the vicinity of the headrest of the driver's 50 seat as described above, the driver is not dazzled, and the driver has light only in the direction of the illuminator 20 or 30 in a dark environment. This makes it possible to give the driver a strong sense of tension.

  In the vehicle interior lighting device 1 according to the present invention, when the door 10 is opened, the inner surface 11 of the door 10 faces rearward, and therefore the light from the illuminator 20 or 30 is transmitted to the following vehicle or the like. Visible from. Therefore, the driver or the like of the following vehicle can be aware that the door 10 is open, and can avoid danger.

  It should be noted that the shapes and structures of the respective parts shown in the above-described embodiments are merely examples of implementations in carrying out the present invention, and these limit the technical scope of the present invention. It should not be interpreted.

  It can be used as a device on the door of a vehicle such as an automobile.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows an embodiment of a vehicle interior lighting device according to the present invention, and is a view showing an inner surface of a door. It is a schematic front view which shows the positional relationship of a driver | operator and the vehicle interior lighting device. It is a schematic cross-sectional view of an illuminator. It is sectional drawing which follows the IV-IV line of FIG. It is a disassembled perspective view which abbreviate | omits and shows the modification of an illuminator.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Vehicle interior illuminating device, 10 ... Door, 11 ... (Inside of door), 20 ... Illuminator, 21 ... Light emitting diode, 22 ... Prism lens, 30 ... Illuminator, 31 ... End surface, 40 ... Driver

Claims (5)

A linear illuminator that irradiates light obliquely upward at a position below the driver's eye position on the inner surface of the door that opens and closes the side of the driver's seat of the vehicle. A vehicle interior lighting device. The vehicle interior lighting device according to claim 1, wherein the illuminator is disposed so as to be substantially along the front-rear direction. 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. 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. The illuminance by the illuminator is 0.1 lux or less in the vicinity of the headrest of the driver's seat. The vehicle interior illumination device according to claim 1, 2, 3, or 4.

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