JPH0771914B2 - Vehicle interior lighting - Google Patents

Description

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

[Conventional technology]

Generally, in a moving body such as a passenger car, when you get into a moving body such as a passenger car when the surroundings are dark such as at night, you can quickly check the safety of the seat surface and ensure the safety such that you can get on the moving body smoothly. is important.

On the other hand, it is known that if there is a sufficiently bright place, the direction of the line of sight can be easily determined in that direction (for example, the Japan Society of Illumination, Basic Research on the Way to See Guide Lights, Research Report (1984). It is also known that spatial perception is performed mainly in bright places, which gives a sense of centrality (for example, Sotaro Matsuda, brightness adjustment in the living room, Kansai Branch Joint Conference on Electrical Appliances and Electronics).
1966). These effects are put to practical use in general indoor lighting and outdoor lighting.

[Problems to be Solved by the Invention] However, the interior lighting of a conventional passenger car or the like is uniform even if any door is opened by an interior light such as a ceiling light that lights in conjunction with the opening of the door. It illuminates the entire room, and there is nothing that considers the inductive effect or central feeling that makes the action when getting on the board faster.

Therefore, according to the present invention, in view of such a conventional example, it is possible to promptly confirm that there is no important object (for example, a camera, a pottery, or the like that is easily broken) on the seat surface when riding. In addition, it is an object of the present invention to provide a lighting device having a guiding effect in the riding direction.

[Means for Solving the Problems]

In order to solve such an object, the present invention relates to the opening of each door, for the road surface, the floor surface, and the seat surface closest to the opened door, the road surface brightness is measured by the first sensor, and the floor surface brightness is measured by the second sensor. Then, the seat surface brightness was detected by the third sensor, the lighting control was performed every time the calculation unit made the floor surface brightness higher than the road surface brightness and the seat surface brightness higher than the floor surface brightness, and further, the door wall surface was illuminated.

[Work]

The present invention not only facilitates safety confirmation by brightly illuminating the road surface or the floor surface by the above-described configuration,
By illuminating the seating surface where you sit most brightly, and then illuminating the floor and road surfaces brightly, the lighting guide effect is provided, allowing you to get into the vehicle smoothly and the area that is brighter than the surroundings around the seated area. By providing
It not only illuminates the necessary area with sufficient brightness, but also illuminates it in the same way as a conventional open door. It is characterized by improving the economic efficiency by not illuminating the illuminated area of the door that is not open.

〔Example〕

A first embodiment of the present invention will be described with reference to FIGS. 1 and 2. The first embodiment easily provides a vehicle interior certification having a guiding effect and a feeling of centrality.

In FIGS. 1 and 2, 1 is a step light, 2 is a foot light, 3 is a seat light, 4 is a first sensor, 5 is a second sensor, 6
Is a third sensor, 7 is an arithmetic circuit, 8 is a blinking circuit, 9 is a switch, and 10 is a power supply.

The operation of the vehicle interior lighting device of the present embodiment configured as described above will be described below. A step light 1 that illuminates the road surface 31, a footlight 2 that illuminates the floor surface 32, and a seat 33
Seat light 3 for illuminating
And the brightness of the floor surface 32 is detected by the second sensor 5,
The third sensor 6 detects the brightness of 33, and the arithmetic circuit 7 controls the lighting so that the brightness of the floor surface 32 becomes higher than the brightness of the road surface 31 and the brightness of the seat 33 surface becomes brighter than the brightness of the floor surface 32. door
When the switch 34 is opened, each of the lights 1, 2, and 3 is turned on, and when the switch is closed, the blinking circuit 8 connected to the switch 9 which is turned on / off in conjunction with the light is turned on and off to supply electric power from the power source for illumination.

As a result, in response to a well-known opening signal provided on the door 34, the road surface 31 near the opened door 34 is operated by the step light 1, and the floor surface 32 near the opened door 34 is operated by the steplight 2.
As a result, the seat 33 surface near the opened door 34 is illuminated by the seat light 3 as the floor surface 32 becomes brighter than the road surface 31 and the seat surface 33 becomes brighter than the floor surface 32. Here, floor surface 3 rather than road surface 31
2.The seat surface 33 is set to be brighter than the floor surface 32 by making the surface of the seat 33, which is a visual object, bright enough to enhance the attractiveness to the surface of the seat 33, and in addition, it is bright. This is because there is a feeling of centering around that. Further, it is to improve the economical efficiency by illuminating only the vicinity of the opened door 34 and not illuminating unnecessary parts.

In order to prevent the uncomfortable glare of the step lamp 1 when viewed directly, the luminance of the light emitting surface of the step lamp 1 is set to 2000 cd / m ² or less. Here, the light emitting surface luminance of the step lamp 1 is set to 2000 cd / m ²
The following is set from the limit value of the brightness that does not give an unpleasant glare when the light source is directly viewed.

Next, a second embodiment of the present invention will be described with reference to FIGS. 3 and 4. The second embodiment is to provide a vehicle interior lighting having a guiding effect and a central feeling with high accuracy and easily.

3 and 4, 11 is a step light, 12 is a foot light, 13 is a seat light, 14 is a door light, 15 is a first sensor, 16 is a second sensor, 17 is a third sensor, and 18 is a calculation. A circuit, 19 is a blinking circuit, 20 is a switch, and 21 is a power supply.

The operation of the vehicle interior lighting device of the present embodiment configured as described above will be described below. The step sensor 11 for illuminating the road surface 31, the foot lamp 12 for illuminating the floor surface 32, and the seat lamp 13 for illuminating the seat 33 surface are detected by the first sensor 15 for the brightness of the road surface 31, and the brightness of the floor surface 32 is detected. Is detected by the second sensor 16, and the seat 33
The brightness of the surface is detected by the third sensor 17, and lighting is controlled by the arithmetic circuit 18 as the brightness of the floor surface 32 becomes brighter than that of the bright surface of the road surface 31 and the brightness of the seat 33 becomes brighter than that of the floor surface 32. , The step light 11, the foot light 12, the seat light 13, and the wall surface 34a of the door 34
The door light 14 for illuminating the above each light 11,12, when the door 34 is opened.
Power is supplied from a power supply 21 to a blinking circuit 19 connected to a switch 20 which is turned on / off in a linked manner so that the lights 13 and 14 are turned on and turned off when closed.

As a result, in response to a well-known open signal provided on the door 34, the wall surface 34a of the opened door 34 is opened by the door light 14, and the road surface 31 near the opened door 34 is opened by the step light 11. The floor surface 32 near the door 34 is controlled by the foot light 12.
The surface of the seat 33 near the opened door 34 is illuminated by the seat light 13 as the floor surface 32 becomes brighter than the road surface 31 and the seat 33 surface becomes brighter than the floor surface 32. Here, the wall surface 34a of the door 34 is illuminated because the attractiveness to the door 34 opened by illuminating the wall surface 34a of the door 34 is increased, and in addition, the wall surface 34a of the door 34 is illuminated.
This is to illuminate the vicinity of the door 34, which is opened by the reflected light, slightly brightly. Also, floor 32, floor 32 rather than road 31
The seat 33 surface is set to be brighter than that by making the seat 33 surface, which is a visual object, sufficiently bright to enhance the attractiveness to the seat 33 surface, and in addition, the central feeling centered on the bright part This is because it occurs.

Further, by illuminating only the vicinity of the opened door 34, unnecessary parts are not illuminated, thereby improving the economical efficiency.

In order to prevent uncomfortable glare when the step lamp 11 is directly viewed, the luminance of the light emitting surface of the step lamp 11 is set to 2000 cd / m ² or less. Here, the light emitting surface brightness of the step lamp 11 is set to 2000 cd / m ²
The following is set from the limit value of the brightness that does not give unpleasant glare when the light source is directly viewed.

〔The invention's effect〕

As described above, according to the present invention, it is possible to easily obtain a vehicle interior lighting having a guidance effect and a central feeling, and the practical effect thereof is great.

[Brief description of drawings]

FIGS. 1 and 3 are side views of the vehicle interior lighting device in the first and second embodiments of the present invention, and FIGS. 2 and 4 are block diagrams of the first and second embodiments. 1,11 ...... Step light, 2,12 ...... Foot light, 3,13 ...... Seat light, 14 ...... Door light, 4,15 ...... First sensor, 5,16 ...... Second
Sensor, 6,17 ... Third sensor, 7,18 ... Operation circuit, 8,19
…… Blinking circuit, 9,20 …… Switch, 10,21 …… Power supply.

Front page continued (72) Inventor Kazuyo Nishikawa 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (72) Izumi Okamura, 1006 Kadoma, Kadoma City, Osaka Matsushita Electric Industrial Co., Ltd. (56) Reference Document JP-A-2-303942 (JP, A)

Claims (2)

[Claims] 1. A step light for illuminating a road surface, a foot light for illuminating a floor surface in a vehicle compartment, a seat light for illuminating a seat surface, and each light when the respective doors are opened and off when the doors are closed. Blinking circuit that is interlocked to make the first and the first to detect the road surface brightness
It is composed of a sensor, a second sensor for detecting the brightness of the floor surface, a third sensor for detecting the brightness of the seat surface, and an arithmetic circuit. The floor brightness is higher than the road brightness and the seat brightness is higher than the floor brightness. A vehicle interior lighting device characterized in that lighting is controlled by an arithmetic circuit as described above. 2. The vehicle interior lighting device according to claim 1, further comprising a door light that illuminates a wall surface of the door.