JP2021034175A - Vehicular lighting fixture - Google Patents

Abstract

To provide a vehicular lighting fixture capable of achieving downsizing of a housing, and capable of acquiring a characteristic required according to the use of a vehicular luminaire.SOLUTION: A vehicular lighting fixture includes: a first lighting fixture provided on a fender of a vehicle body; and a second lighting fixture provided further on the center side than the fender of the vehicle body. The first lighting fixture includes: a first luminaire including at least one of a light emitting diode and a laser diode; and a first housing in which the first luminaire is provided. The second lighting fixture includes: a second luminaire including a light emitting part which includes an OLED; and a second housing in which the second luminaire is stored. A protrusion dimension to the inside of the vehicle body of the second housing is smaller than a protrusion dimension to the inside of the vehicle body of the first housing.SELECTED DRAWING: Figure 2

Description

Embodiments of the present invention relate to vehicle lamps.

Light emitting diodes have come to be used in place of filament light bulbs in vehicle lighting devices provided in vehicle lighting equipment. If a light emitting diode is used, energy saving and long life can be achieved as compared with a filament light bulb.
Further, for example, vehicle lighting fixtures provided in automobiles include so-called combination lights in which vehicle lighting devices for various purposes are combined. For example, the rear combination light may be provided with vehicle lighting devices used for each of a stop lamp, a tail lamp, a turn signal lamp, a back lamp, a fog lamp, a position lamp, and the like.

Here, a vehicle lighting device using a light emitting diode is suitable for an application of irradiating light in a narrow range. However, depending on the application of the vehicle lighting device, it may be better to irradiate a relatively wide range of light. For example, in the case of a stop lamp or a turn signal lamp, it is preferable to irradiate a relatively narrow range, and in the case of a tail lamp or a position lamp, it is preferable to irradiate a relatively wide range of light.
Therefore, a light guide or the like is provided inside the housing of the vehicle lighting equipment, and the light emitted from the vehicle lighting device using the light emitting diode is diffused by the light guide or the like to spread the light over a relatively wide range. I am trying to be irradiated.

However, if a light guide or the like is provided inside the housing of the vehicle lamp, the housing becomes large. Generally, the vehicle lighting equipment is provided on the outer surface of the vehicle body, and the housing provided with the vehicle lighting device, the light guide body, or the like is housed inside the vehicle body. For example, the housing of a vehicle lamp is housed in a trunk room or an engine room. Therefore, if the housing of the vehicle lamp is increased in size, the effective use of the internal space of the vehicle body may be hindered.

Furthermore, depending on the application of the vehicle lighting device, a relatively large amount of light may be required, or a relatively small amount of light may be sufficient. For example, in the case of a stop lamp or a turn signal lamp, a relatively large amount of light is often required. For example, in the case of a tail lamp or a position lamp, a relatively small amount of light is often sufficient.
Therefore, it has been desired to develop a vehicle lamp that can reduce the size of the housing and can obtain the characteristics required according to the application of the vehicle lighting device.

Japanese Unexamined Patent Publication No. 2018-12802

An object to be solved by the present invention is to provide a vehicle lamp that can reduce the size of the housing and can obtain the characteristics required according to the use of the vehicle lighting device.

The vehicle lamp according to the embodiment includes a first lamp provided on the fender of the vehicle body; and a second lamp provided on the vehicle body on the center side of the fender. The first lamp has a first luminaire equipped with at least one of a light emitting diode and a laser diode, and a first housing provided with the first luminaire. The second lamp has a second lighting device including a light emitting unit including an OLED, and a second housing in which the second lighting device is housed. The protrusion dimension of the second housing to the inside of the vehicle body is smaller than the protrusion dimension of the first housing to the inside of the vehicle body.

According to the embodiment of the present invention, it is possible to provide a vehicle lamp that can reduce the size of the housing and can obtain the characteristics required according to the use of the vehicle lighting device.

It is a schematic diagram for exemplifying the arrangement of the vehicle lamps which concerns on this embodiment. It is a schematic exploded view for exemplifying a lamp 100a and a lamp 100b. It is a schematic perspective view for exemplifying the lighting device 1. It is a schematic cross-sectional view for exemplifying the lighting device 50. It is a schematic plan view for exemplifying the light distribution of a lighting device 1. It is a schematic diagram for exemplifying the lamp 100c which concerns on another embodiment. It is a schematic perspective view for exemplifying the function of the region provided with the reflection part 104. It is a schematic perspective view for exemplifying the function of the region provided with the reflection part 104. It is a schematic perspective view for exemplifying the function of the region provided with the reflection part 104.

Hereinafter, embodiments will be illustrated with reference to the drawings. In each drawing, similar components are designated by the same reference numerals and detailed description thereof will be omitted as appropriate.

The vehicle lighting fixture according to the present embodiment can be provided in a vehicle such as an automobile, for example. Vehicle lighting fixtures installed in automobiles include, for example, rear combination lights (for example, a combination of stop lamps, tail lamps, turn signal lamps, back lamps, fog lamps, etc.) and front combination lights (for example, daytime running). A lamp (DRL: Daytime Running Lamp), a position lamp, a turn signal lamp, and the like are appropriately combined) and the like can be exemplified.
In the following, as an example, a case where the vehicle lamp according to the present embodiment is a rear combination light will be described. However, the vehicle lighting fixture according to the present embodiment is not limited to the rear combination light, and may be, for example, a front combination light.

FIG. 1 is a schematic view for exemplifying the arrangement of the vehicle lamp 100 according to the present embodiment. As shown in FIG. 1, the vehicle lighting fixture 100, which is a rear combination light, can be provided on the rear side surface of the vehicle body 200. The vehicle lamps can be provided on the right side and the left side of the vehicle body 200, but are line-symmetrical with the central axis 200c of the vehicle body 200 as the axis of symmetry. Therefore, the vehicle lamps provided on the right side and the left side can have the same configuration except that the shapes are line-symmetrical. Therefore, in the following, as an example, the vehicle lamp 100 provided on the left side of the vehicle body 200 will be described.

The vehicle lamp 100 includes a lamp 100a provided on the fender 200a of the vehicle body 200 (corresponding to an example of the first lamp) and a lamp 100b (of the second lamp) provided on the center side of the vehicle body 200 with respect to the fender 200a. Corresponds to one example). As illustrated in FIG. 1, the lamp 100b can be provided, for example, on the door 200b of the trunk room of the vehicle body 200. As shown in FIG. 1, when the door 200b of the trunk room is closed, the lamp 100a and the lamp 100b are arranged in a substantially horizontal direction, and the lamp 100a and the lamp 100b can form one design. ..

FIG. 2 is a schematic exploded view for exemplifying the lamp 100a and the lamp 100b.
In addition, in FIG. 2, as an example, the case where one lighting device 1 (corresponding to an example of the first lighting device) is provided is illustrated, but a plurality of lighting devices 1 may be provided. Further, although the case where one lighting device 50 (corresponding to an example of the second lighting device) is provided is illustrated, a plurality of lighting devices 50 may be provided.

(Lamp 100a)
As shown in FIG. 2, the lamp 100a may be provided with a housing 101a (corresponding to an example of the first housing), a cover 102a, a seal member 103, and a lighting device 1.
The housing 101a can be housed inside the fender 200a of the vehicle body 200, for example. The housing 101a may have a box shape with one end side open, for example. The housing 101a can be formed of, for example, a resin that does not transmit light. A mounting hole into which the mounting portion 11 of the lighting device 1 is inserted can be provided on the bottom surface of the housing 101a. Although the case where the mounting hole is directly provided in the housing 101a is illustrated, a mounting member having the mounting hole may be provided in the housing 101a.

When the lighting device 1 is attached to the housing 101a, the portion of the mounting portion 11 provided with the bayonet 12 is inserted into the mounting hole to rotate the lighting device 1. Then, for example, the bayonet 12 is held by the fitting portion provided on the peripheral edge of the mounting hole. Such a mounting method is called a twist lock.

The cover 102a can be provided so as to close the opening of the housing 101a. The cover 102a can be formed from a translucent material. The translucent material can be, for example, glass or acrylic resin. In this case, the translucent material may be transparent, or may be colored in red, amber, or the like. Further, the cover 102a may have a function such as a lens.

The seal member 103 can be provided between the flange 13 and the outer surface of the housing 101a. The seal member 103 may have an annular shape. The sealing member 103 can be formed from an elastic material such as rubber or silicone resin.

When the lighting device 1 is attached to the housing 101a, the sealing member 103 is sandwiched between the flange 13 and the outer surface of the housing 101a. Therefore, the internal space of the housing 101a can be sealed by the sealing member 103. Further, the bayonet 12 is pressed against the inner surface of the housing 101a by the elastic force of the seal member 103. Therefore, it is possible to prevent the lighting device 1 from detaching from the housing 101a.

FIG. 3 is a schematic perspective view for exemplifying the lighting device 1.
As shown in FIG. 3, the lighting device 1 may be provided with a socket 10, a light emitting module 20, a power feeding terminal 30, and a heat transfer unit 40.

The socket 10 can have a mounting portion 11, a bayonet 12, a flange 13, a radiating fin 14, and a connector holder 15.
The mounting portion 11 can be provided on the surface of the flange 13 opposite to the side on which the heat radiation fins 14 are provided. The outer shape of the mounting portion 11 can be columnar. The mounting portion 11 may have a recess 11a that opens at an end opposite to the flange 13 side.

The bayonet 12 can be provided on the outer surface of the mounting portion 11. For example, the bayonet 12 projects outward of the lighting device 1. The bayonet 12 can face the flange 13. A plurality of bayonets 12 can be provided. The bayonet 12 can be used when the lighting device 1 is attached to the housing 101a. The bayonet 12 can be used for twist lock.

The flange 13 may have a plate shape. For example, the flange 13 may have a disc shape. The outer surface of the flange 13 can be located outside the illuminator 1 with respect to the outer surface of the bayonet 12.

The heat radiating fin 14 can be provided on the side of the flange 13 opposite to the mounting portion 11 side. At least one heat radiation fin 14 can be provided. For example, the socket 10 illustrated in FIG. 3 is provided with a plurality of heat radiation fins 14. The plurality of heat radiation fins 14 can be provided side by side in a predetermined direction. The heat radiation fin 14 may have a plate shape.

The connector holder 15 may have a tubular shape. The connector holder 15 can be provided on the side of the flange 13 opposite to the mounting portion 11 side. The ends of a plurality of power supply terminals 30 can be exposed inside the connector holder 15. A connector having a sealing member can be inserted into the connector holder 15. The connector inserted inside the connector holder 15 can be electrically connected to a plurality of power supply terminals 30. Further, the inside of the connector holder 15 is liquid-tightly sealed by the sealing member.

The socket 10 can have a function of holding the light emitting module 20 and the power feeding terminal 30, and a function of transferring the heat generated in the light emitting module 20 to the outside. Therefore, the socket 10 is preferably formed from a material having high thermal conductivity. For example, the socket 10 can be formed from a metal such as an aluminum alloy.

Further, in recent years, it is desired that the socket 10 can efficiently dissipate the heat generated in the light emitting module 20 and is lightweight. Therefore, the socket 10 is preferably formed of a highly thermally conductive resin. The high thermal conductive resin includes, for example, a filler composed of a resin and an inorganic material. The high thermal conductivity resin can be, for example, a resin such as PET (Polyethylene terephthalate) or nylon mixed with a filler made of carbon, aluminum oxide, or the like.
Further, a part of the elements constituting the socket 10 can be formed by using metal, and the remaining elements can be formed by using a high thermal conductive resin.

However, if the socket 10 contains a highly thermally conductive resin and is integrally formed with the mounting portion 11, the bayonet 12, the flange 13, the heat radiating fin 14, and the connector holder 15, the heat generated in the light emitting module 20 can be efficiently radiated. can do. Moreover, the weight of the socket 10 can be reduced. In this case, the mounting portion 11, the bayonet 12, the flange 13, the heat radiation fin 14, and the connector holder 15 can be integrally molded by using an injection molding method or the like. Further, the socket 10 and the power feeding terminal 30 can be integrally molded by using an insert molding method or the like.

The light emitting module 20 can be provided on one end side of the socket 10.
The light emitting module 20 can include a substrate 21, a light emitting element 22, a resistor 23, a control element 24, a frame portion 25, and a sealing portion 26.

The substrate 21 can be provided on the heat transfer unit 40. The substrate 21 may have a plate shape. The substrate 21 can be formed from, for example, an inorganic material such as ceramics (for example, aluminum oxide or aluminum nitride), an organic material such as paper phenol or glass epoxy, or the like. Further, the substrate 21 may be a metal plate whose surface is coated with an insulating material. When the surface of the metal plate is covered with an insulating material, the insulating material may be made of an organic material or an inorganic material. When the amount of heat generated by the light emitting element 22 is large, it is preferable to form the substrate 21 using a material having high thermal conductivity from the viewpoint of heat dissipation. Examples of the material having high thermal conductivity include ceramics such as aluminum oxide and aluminum nitride, high thermal conductive resin, and a metal plate whose surface is coated with an insulating material.

Further, on the surface of the substrate 21, a wiring pattern for electrically connecting the light emitting element 22, the resistor 23, the control element 24, and the power feeding terminal 30 can be provided. Further, the substrate 21 may have a single-layer structure or a multi-layer structure.

The light emitting element 22 can be provided on the substrate 21. At least one light emitting element 22 can be provided. In the case of the lighting device 1 illustrated in FIG. 3, a plurality of light emitting elements 22 are provided. When a plurality of light emitting elements 22 are provided, the plurality of light emitting elements 22 can be connected in series. Further, the light emitting element 22 can be connected in series with the resistor 23.

The light emitting element 22 may be, for example, a light emitting diode, a laser diode, or the like.
The light emitting element 22 may be a surface mount type light emitting element, a bullet-shaped light emitting element having a lead wire, a chip-shaped light emitting element, or the like. However, considering the miniaturization of the lighting device 1, the light emitting element 22 is preferably a chip-shaped light emitting element. The light emitting element 22 illustrated in FIG. 3 is a chip-shaped light emitting element.

The chip-shaped light emitting element 22 can be mounted by a COB (Chip On Board). The chip-shaped light emitting element 22 can be an upper or lower electrode type light emitting element, an upper electrode type light emitting element, or a lower electrode type (flip chip type) light emitting element. When the light emitting element 22 is an upper and lower electrode type light emitting element or an upper electrode type light emitting element, the upper surface electrode and the wiring pattern can be electrically connected by using wire wiring. For example, the light emitting element 22 can be electrically connected to the wiring pattern by using a wire bonding method. In the case of the lower electrode type light emitting element, the light emitting element 22 can be directly mounted on the mounting pad of the wiring pattern.

The light emitting surface of the light emitting element 22 is directed to the front side of the lighting device 1. The light emitting element 22 mainly emits light toward the front side of the lighting device 1. The number, size, arrangement, and the like of the light emitting elements 22 are not limited to those illustrated, and can be appropriately changed according to the size and the like of the lighting device 1.

The resistor 23 can be provided on the substrate 21. The resistor 23 can be, for example, a surface mount type resistor, a resistor having a lead wire (metal oxide film resistor), a film-shaped resistor formed by using a screen printing method, or the like. The resistor 23 illustrated in FIG. 3 is a film-like resistor.

Here, since the forward voltage characteristics of the light emitting element 22 vary, if the applied voltage between the anode terminal and the ground terminal is made constant, the brightness of the light emitted from the light emitting element 22 (luminous flux, brightness). , Luminous intensity, illuminance). Therefore, the value of the current flowing through the light emitting element 22 can be set within a predetermined range by the resistor 23 so that the brightness of the light emitted from the light emitting element 22 falls within a predetermined range. In this case, by changing the resistance value of the resistor 23, the value of the current flowing through the light emitting element 22 can be kept within a predetermined range.

When the resistor 23 is a surface mount type resistor or a resistor having a lead wire, the resistor 23 having an appropriate resistance value can be selected according to the forward voltage characteristic of the light emitting element 22. When the resistor 23 is a film-like resistor, the resistance value can be increased by irradiating the resistor 23 with a laser to remove a part of the resistor 23. The number, size, arrangement, etc. of the resistors 23 are not limited to those illustrated, and can be appropriately changed according to the number, specifications, and the like of the light emitting elements 22.

The control element 24 can be provided on the substrate 21. The control element 24 can be provided to prevent the reverse voltage from being applied to the light emitting element 22 and to prevent pulse noise from the reverse direction from being applied to the light emitting element 22. The control element 24 can be, for example, a diode. The control element 24 may be, for example, a surface mount type diode, a diode having a lead wire, or the like. The control element 24 illustrated in FIG. 3 is a surface mount diode.

In addition, a pull-down resistor may be provided to detect continuity of the light emitting element 22 and prevent erroneous lighting. Further, a covering portion that covers the wiring pattern, the film-like resistor 23, and the like can be provided. The covering may include, for example, a glass material.

The frame portion 25 can be adhered onto the substrate 21. The frame portion 25 may have a frame shape. At least one light emitting element 22 can be provided in the region surrounded by the frame portion 25. For example, the frame portion 25 can surround a plurality of light emitting elements 22.

The case where the frame portion 25 is molded by an injection molding method or the like and the molded frame portion 25 is adhered to the substrate 21 has been illustrated, but the present invention is not limited to this. The frame portion 25 can also be formed, for example, by applying the melted resin on the substrate 21 in a frame shape using a dispenser or the like and curing the frame portion 25.

The sealing portion 26 can be provided inside the frame portion 25. The sealing portion 26 can be provided so as to cover the area surrounded by the frame portion 25. The sealing portion 26 can be provided so as to cover the light emitting element 22. The sealing portion 26 can be formed by filling the inside of the frame portion 25 with, for example, a silicone resin or the like. Further, the sealing portion 26 can include a phosphor. The phosphor can be, for example, a YAG-based phosphor (yttrium-aluminum-garnet-based phosphor). However, the type of phosphor can be appropriately changed so as to obtain a predetermined emission color according to the application of the lighting device 1.

The frame portion 25 can also be omitted. When the frame portion 25 is omitted, the dome-shaped sealing portion 26 can be formed on the substrate 21. However, if the frame portion 25 is provided, the formation range of the sealing portion 26 can be defined. Therefore, it is possible to suppress the increase in the plane size of the sealing portion 26, so that the size of the substrate 21 and the size of the vehicle lighting device 1 can be reduced.
When the light emitting element 22 is a surface mount type light emitting element or a bullet type light emitting element, the frame portion 25 and the sealing portion 26 can be omitted.

The power feeding terminal 30 can be a rod-shaped body. A plurality of power supply terminals 30 may be provided. The ends of the plurality of power supply terminals 30 on the light emitting module 20 side can be soldered to the wiring pattern provided on the substrate 21. The ends of the plurality of power supply terminals 30 on the heat radiation fin 14 side can be exposed inside the connector holder 15. The connector 105 can be fitted to the plurality of power supply terminals 30 exposed inside the connector holder 15. The power feeding terminal 30 can be formed of, for example, a metal such as a copper alloy. The number, shape, arrangement, materials, and the like of the power feeding terminals 30 are not limited to those illustrated, and can be changed as appropriate.

As described above, the socket 10 is preferably formed of a material having high thermal conductivity. However, a material having high thermal conductivity may have conductivity. For example, a metal such as an aluminum alloy or a highly thermally conductive resin containing a filler made of carbon has conductivity. Therefore, an insulating portion that insulates between the power feeding terminal 30 and the conductive socket 10 can be provided inside the connector holder 15. When the socket 10 is formed of an insulating high thermal conductive resin (for example, a high thermal conductive resin containing a filler made of aluminum oxide), the socket 10 may hold a plurality of power feeding terminals 30. it can.

The heat transfer portion 40 can be provided between the substrate 21 and the bottom surface of the recess 11a. The heat transfer portion 40 can be adhered to or embedded in the bottom surface of the recess 11a, or can be attached to the bottom surface of the recess 11a via a layer made of heat conductive grease (thermal grease). The heat transfer unit 40 is provided, for example, to facilitate the heat generated in the light emitting module 20 to be transferred to the socket 10. Therefore, the heat transfer portion 40 is preferably formed from a material having high thermal conductivity. The heat transfer portion 40 has a plate shape and can be formed of, for example, a metal such as aluminum, an aluminum alloy, copper, or a copper alloy. The heat transfer unit 40 is not always necessary, and for example, the heat transfer unit 40 can be omitted when the heat generated in the light emitting module 20 is small.

(Lamp 100b)
As shown in FIG. 2, the lamp 100b may be provided with a housing 101b (corresponding to an example of the second housing), a cover 102b, and a lighting device 50.
The housing 101b can be stored in the trunk room of the vehicle body 200, for example. The housing 101b may have a box shape with one end side open, for example. The housing 101b can be formed of, for example, a resin that does not transmit light. The lighting device 50 can be housed inside the housing 101b.

The cover 102b can be provided so as to close the opening of the housing 101b. The cover 102b can be formed from a translucent material. The translucent material can be, for example, glass or acrylic resin. In this case, the translucent material may be transparent, or may be colored in red, amber, or the like. Further, the cover 102b may have a function such as a lens.

FIG. 4 is a schematic cross-sectional view for exemplifying the lighting device 50.
In FIG. 4, a flat plate-shaped illuminating device 50 is illustrated as an example, but the shape of the illuminating device 50 is not limited to this. For example, the shape and size of the lighting device 50 can be adapted to the shape and size of the light emitting surface of the cover 102b.

As shown in FIG. 4, the lighting device 50 may be provided with a base 51, a light emitting unit 52, a holding frame 53, and a cover 54.
The base 51 has a plate shape, and a recess 51a can be provided on one surface. A recess 51b can be provided on the bottom surface of the recess 51a. A light emitting portion 52 can be provided inside the recess 51a. The base 51 can be formed from, for example, an insulating resin or the like.

The light emitting unit 52 can be, for example, a thin sheet containing an OLED (Organic Light Emitting Diode). Since the light emitting portion 52 can be a thin sheet, it can be easily deformed. Further, since the light emitting unit 52 includes an OLED, it can be a self-luminous element. Therefore, the planar shape of the light emitting surface 52a of the light emitting unit 52 can be made arbitrary, or light can be irradiated from the entire surface of the light emitting surface 52a.

Therefore, for example, it becomes easy to set the size and shape of the light emitting unit 52 according to the shape and size of the light emitting surface of the cover 102b. Further, the light can be irradiated from a wide area of the light emitting surface of the cover 102b.
The light emitting unit 52 can be electrically connected to an external power supply, a circuit board, or the like via, for example, a wiring cable.

The holding frame 53 has a frame shape and can be provided between the cover 54 and the light emitting portion 52. Since the holding frame 53 has a frame shape, the light emitted from the light emitting unit 52 can pass through the central portion of the holding frame 53 and enter the cover 54.

The cover 54 can be provided on the side of the holding frame 53 opposite to the light emitting portion 52 side. The cover 54 can be formed from, for example, a plate-shaped, translucent material. The translucent material can be, for example, glass or acrylic resin. In this case, the translucent material may be transparent, or may be colored in red, amber, or the like. Further, the cover 54 may also have a function of diffusing light and the like.

Here, the lighting device 1 provided with a light emitting element 22 such as a light emitting diode is suitable for an application of irradiating light in a narrow range. However, depending on the application of the lighting device, it may be better to irradiate a relatively wide range of light. For example, in the case of a stop lamp or a turn signal lamp, it is preferable to irradiate a relatively narrow range, and in the case of a tail lamp or a position lamp, it is preferable to irradiate a relatively wide range of light.

In this case, it is also possible to provide only the lighting device 1 provided with the light emitting element 22 such as a light emitting diode, and to irradiate light over a relatively wide range by a light guide or the like provided inside the housing of the vehicle lamp. However, if a light guide or the like is provided inside the housing of the vehicle lamp, the housing becomes large. Generally, the vehicle lighting equipment is provided on the outer surface of the vehicle body, and the housing provided with the lighting device or the like is housed inside the vehicle body. For example, in the case of a rear combination light, at least a part of the housing is housed in the trunk room. For example, in the case of a front combination light, at least a part of the housing is housed in the engine room. Therefore, if the housing of the vehicle lighting equipment becomes large, the effective use of the internal space of the vehicle body 200 may be hindered.

Furthermore, depending on the application of the lighting device, a relatively large amount of light may be required, or a relatively small amount of light may be sufficient. For example, in the case of a stop lamp or a turn signal lamp, a relatively large amount of light is often required. For example, in the case of a tail lamp or a position lamp, a relatively small amount of light is often sufficient.

In this case, the amount of light of the lighting device 50 provided with the light emitting unit 52 including the OLED is smaller than the amount of light of the lighting device 1 provided with the light emitting element 22 such as a light emitting diode. However, the lighting device 50 can irradiate the light from a wide area of the light emitting surface of the cover 102b. Further, since the light emitting unit 52 can be a thin sheet, the thickness of the light emitting unit 52, and by extension, the thickness of the housing 101b in which the lighting device 50 is housed can be reduced. That is, the protrusion dimension of the housing 101b to the inside of the vehicle body 200 can be made smaller than the protrusion dimension of the housing 101a to the inside of the vehicle body 200.

Here, when the lighting device 1 is attached to the housing 101a, the heat radiation fin 14 side of the lighting device 1 projects outward from the bottom surface of the housing 101a. Therefore, if the lighting device 1 is provided in the housing 101a, the size of the portion protruding inside the vehicle body 200 becomes large. However, since the housing 101a is housed inside the fender 200a of the car body 200, there is less possibility that the effective use of the internal space of the car body 200 is hindered as compared with the case where the housing 101a is stored in the trunk room or the engine room.

Further, lighting devices (for example, stop lamps and turn signal lamps) that irradiate a relatively narrow range and require a relatively large amount of light are arranged on the right side surface side and the left side surface side of the vehicle body 200. In many cases.
On the other hand, a lighting device (for example, a tail lamp, a position lamp, etc.) that irradiates light over a relatively wide range and requires a relatively small amount of light is often arranged on the center side of the vehicle body 200.

Therefore, a lamp 100a (illumination device 1) capable of irradiating light in a relatively narrow range and increasing the amount of emitted light is provided on the fender 200a of the vehicle body 200 to irradiate the light in a relatively wide range. However, if the lighting fixture 100b, which emits less light, is provided on the center side of the vehicle body 200 (for example, at a position such as a trunk room or an engine room), the housing can be miniaturized and the vehicle It is possible to obtain the characteristics required according to the application of the lighting device.
In this case, for example, the lighting device 1 can be used for at least one of a stop lamp and a turn signal lamp.
For example, the lighting device 50 can be used for at least one of a tail lamp and a position lamp.

(Lamp 100c according to other embodiments)
FIG. 5 is a schematic plan view for exemplifying the light distribution of the lighting device 1.
As described above, the lighting device 1 provided in the lamp 100a irradiates light in a relatively narrow range. Further, the lamp 100a is provided on the fender 200a of the vehicle body 200. Therefore, the lighting device 1 irradiates the right side surface side and the left side surface side of the vehicle body 200 with light.
However, depending on the application of the lighting device 1, it may be better to irradiate the center side of the vehicle body 200 with light as shown in FIG.

FIG. 6 is a schematic view for exemplifying the lamp 100c according to another embodiment.
The lamp 100c may be provided with a housing 101a, a cover 102a, a seal member 103, a lighting device 1, and a reflecting portion 104. That is, the lamp 100c may be a lamp 100a described above with a reflecting portion 104 further provided.
In FIG. 6, the housing 101a and the seal member 103 are omitted in order to avoid complication.

As shown in FIG. 6, the central axis 1a of the lighting device 1 can be tilted with respect to the central axis 200d of the vehicle body 200. The central axis 1a of the lighting device 1 can be tilted in a direction in which the light emitting side of the lighting device 1 approaches the side surface of the vehicle body 200, for example. By doing so, it is possible to irradiate the side of the vehicle body 200 with light.

The reflecting portion 104 can be provided inside the cover 102a. The reflecting portion 104 may be provided on the inner surface of the cover 102a, or may be provided at a distance from the inner surface of the cover 102a as shown in FIG. The distance between the reflecting unit 104 and the lamp 100b can be longer than the distance between the lighting device 1 and the lamp 100b. That is, the reflecting portion 104 can be provided on the side surface side of the vehicle body 200 with respect to the lighting device 1.

In the region where the reflecting unit 104 is provided, a part of the light L1 emitted from the lighting device 1 is reflected by the reflecting unit 104 and irradiated to the center side of the vehicle body 200. Further, in the region where the reflecting portion 104 is provided, a part of the light L2 emitted from the lighting device 1 is transmitted and irradiated to the side of the vehicle body 200.
In this way, the light distribution 301 by the lighting device 1 and the light distribution 302 by the reflection unit 104 can be overlapped with each other, so that the central side of the vehicle body 200 can also be irradiated with light.
In this case, even if the angle θ between the central axis 1a of the lighting device 1 and the central axis 200d of the vehicle body 200 is 15 ° or more, the central side of the vehicle body 200 can be irradiated with light.
According to this embodiment, it becomes easier to obtain the light distribution characteristics required according to the type of the lighting device 1.

7 to 9 are schematic perspective views for exemplifying the function of the region provided with the reflecting portion 104.
As shown in FIGS. 7 to 9, a plurality of reflecting portions 104 can be provided so as to be separated from each other. The light emitted from the illuminating device 1 and incident on the reflecting unit 104 becomes the light L1 reflected by the reflecting unit 104. The light L1 irradiates the central side of the vehicle body 200.
On the other hand, the light L2 emitted from the lighting device 1 and incident between the reflecting unit 104 and the reflecting unit 104 passes through the region where the reflecting unit 104 is provided and is irradiated to the side surface of the vehicle body 200.
That is, the light emitted from the lighting device 1 and incident on the reflecting portion 104 is irradiated to the center side of the vehicle body 200, and the light incident between the reflecting portion 104 and the reflecting portion 104 is irradiated to the side side of the vehicle body. To.

The reflecting portion 104 can be formed of a material having a high light reflectance (for example, aluminum). The reflective portion 104 can be, for example, a metal plate or foil such as aluminum, a plating film, a vapor-deposited film, or the like.

As shown in FIG. 7, a plurality of reflecting portions 104 can be provided side by side in the vertical direction of the vehicle body 200. Further, the plurality of reflecting portions 104 can have a shape extending in the left-right direction of the vehicle body 200.
As shown in FIG. 8, a plurality of reflecting portions 104 can be provided side by side in the vertical direction and the horizontal direction of the vehicle body 200. Further, the difference between the horizontal dimension and the vertical dimension of the vehicle body 200 of the plurality of reflecting portions 104 can be reduced.
As shown in FIG. 9, a plurality of reflecting portions 104 can be provided side by side in the left-right direction of the vehicle body 200. Further, the plurality of reflecting portions 104 can have a shape extending in the vertical direction of the vehicle body 200.

In this case, the arrangement, shape, size, number, and the like of the plurality of reflecting portions 104 can be appropriately determined based on the light distribution characteristics required according to the application of the lighting device 1. In this case, the arrangement, shape, size, number, and the like of the plurality of reflecting portions 104 can be appropriately determined by conducting an experiment or a simulation according to the required light distribution characteristics.

In the above, the case where the vehicle lamp 100 according to the present embodiment is a rear combination light has been illustrated. Therefore, the case where the lamp 100a and the lamp 100b are separated has been described. However, in the case of a vehicle lamp, for example, a front combination light, the lamp 100a and the lamp 100b may be integrally provided. For example, the housing 101a and the housing 101b may be integrated. The cover 102a and the cover 102b may be integrated.

Although some embodiments of the present invention have been illustrated above, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other embodiments, and various omissions, replacements, changes, etc. can be made without departing from the gist of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are also included in the scope of the invention described in the claims and the equivalent scope thereof. Moreover, each of the above-described embodiments can be implemented in combination with each other.

1 Lighting device, 10 sockets, 20 light emitting modules, 22 light emitting elements, 50 lighting devices, 52 light emitting parts, 100 vehicle lighting equipment, 100a lighting equipment, 100b lighting equipment, 101a housing, 101b housing, 102a cover, 102b cover, 104 reflection Department, 200 body, 200a Fender, 200b Trunk room door

Claims (5)

With the first lamp installed on the fender of the car body;
With a second lamp provided on the center side of the vehicle body with respect to the fender;
Equipped with
The first lamp has a first luminaire equipped with at least one of a light emitting diode and a laser diode, and a first housing provided with the first luminaire.
The second lamp has a second lighting device including a light emitting unit including an OLED, and a second housing in which the second lighting device is housed.
A vehicle lighting fixture in which the protrusion dimension of the second housing to the inside of the vehicle body is smaller than the protrusion dimension of the first housing to the inside of the vehicle body. The vehicle lighting device according to claim 1, wherein the first lighting device is used for at least one of a stop lamp and a turn signal lamp. The vehicle lighting device according to claim 1 or 2, wherein the second lighting device is used for at least one of a tail lamp and a position lamp. The vehicle lamp according to any one of claims 1 to 3, wherein the second lamp is provided on the door of the trunk room. The vehicle lamp according to any one of claims 1 to 3, wherein the first lamp and the second lamp are integrally provided.

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