CN114623401A

CN114623401A - Vehicle lamp and vehicle

Info

Publication number: CN114623401A
Application number: CN202111404306.XA
Authority: CN
Inventors: 村中契太; 望月和久
Original assignee: Koito Manufacturing Co Ltd
Current assignee: Koito Manufacturing Co Ltd
Priority date: 2020-12-09
Filing date: 2021-11-24
Publication date: 2022-06-14
Also published as: JP2022091170A

Abstract

The invention provides a vehicle lamp and a vehicle, which can meet the requirements of the design aspect of the vehicle, and can meet the requirements of the decoration effect and the illumination effect of the lamp when the lamp is turned on. An auxiliary lamp (1) arranged on a motor vehicle is provided with a light source (light source unit) (3) and a lens (4) which transmits light emitted by the light source (3) and emits the light from a light-emitting surface, and a half-mirror film (5) which transmits light of the light source (3) and reflects external light is arranged on the light-emitting surface (42) of the lens (4). The half-mirror film (5) is configured as a colored film having the same appearance color as at least a part of the vehicle, for example, a bumper or an indoor ceiling garnish. When the lamp (1) is not turned on, the half mirror film (5) presents an appearance having the same color as a part of the vehicle, and when turned on, the light emission of the lamp (1) is confirmed.

Description

Vehicle lamp and vehicle

Technical Field

The present invention relates to a lamp provided in a vehicle such as an automobile, and more particularly to a vehicle lamp that can be used as a lighting lamp, a marker lamp, and a decorative lamp, and a vehicle provided with the vehicle lamp.

Background

As one of the lamps for automobiles, an auxiliary lamp has been proposed. For example, patent document 1 proposes an auxiliary lamp configured as a decorative lamp. Further, patent document 2 proposes an indoor illumination lamp, but the indoor illumination lamp may be configured by an auxiliary lamp. In recent years, auxiliary lamps called edge illuminators (registered trademark, manufactured by seiko corporation) have been provided as decorative lamps or auxiliary lighting lamps at arbitrary positions of a vehicle body of an automobile.

Documents of the prior art

Patent literature

Patent document 1: japanese Utility model laid-open publication No. 5-41007

Patent document 2: japanese patent laid-open No. 2012 and 254673

Disclosure of Invention

Problems to be solved by the invention

Since such a lamp is disposed in a state where it is exposed to the outer surface of the vehicle body or the ceiling surface inside the vehicle body, the lamp can be visually confirmed regardless of whether the lamp is turned on or off when the vehicle is observed. Therefore, it is difficult to design the lamp at a position where the lamp is not preferably arranged, according to the design requirements of the vehicle. On the other hand, in order to obtain a decorative effect and an illumination effect when the lamp is turned on, it is sometimes desirable to dispose the lamp at that portion. Thus, it is difficult for the conventional lamp to satisfy both the design requirement and the decorative and lighting effects.

The invention aims to provide a vehicle lamp and a vehicle, which can meet the requirements of the design of the vehicle and meet the requirements of the decorative effect and the lighting effect of the lamp during lighting.

Means for solving the problems

The present invention is a lamp provided in a vehicle, including a light source and a lens for transmitting light emitted from the light source and emitting the light from a light emitting surface, wherein a half mirror film for transmitting the light from the light source and reflecting external light is provided on the light emitting surface of the lens, and the half mirror film is formed as a colored film having the same appearance color as at least a part of the vehicle.

In the present invention, light emitted through the lens and the half mirror film when the light source emits light is emitted as light of a color different from or the same as that of the half mirror film. The lamp is disposed on a vehicle body of a vehicle, and the half mirror film is formed of the same appearance color as a part of the vehicle body.

In the present invention, for example, the lamp is equipped close to a bumper of a vehicle, and the half mirror film is constituted by an appearance color of the bumper. Alternatively, the lamp is disposed in a vehicle cabin, and the half mirror film is formed in the same appearance color as a part of the interior of the vehicle cabin. In the latter case, the lamp preferably comprises an ultraviolet light source emitting ultraviolet light towards the light source.

The vehicle according to the present invention is configured as a vehicle provided with these vehicle lamps.

Effects of the invention

According to the present invention, it is possible to provide a vehicle lamp and a vehicle, which can improve the effect of design at the time of non-lighting and lighting of the lamp and can perform illumination and decoration which are the original purposes of the lamp, even when the lamp is installed in the vehicle.

Drawings

Fig. 1 is a front view of a lamp and a motor vehicle according to embodiment 1 of the present invention.

Fig. 2 is an enlarged perspective view of a part of the lamp and the bumper of embodiment 1.

Fig. 3 is an exploded perspective view of the lamp of embodiment 1.

Fig. 4 is an enlarged sectional view taken along line IV-IV of fig. 2.

Fig. 5 is a cutaway perspective view of a part of the lamp of embodiment 1.

Fig. 6 is a schematic diagram illustrating the operation of the lamp of embodiment 1.

Fig. 7 is a schematic perspective view of a lamp and a motor vehicle according to embodiment 2 of the present invention.

Fig. 8 is an enlarged sectional view taken along line VIII-VIII of fig. 7.

Fig. 9 is a block circuit diagram of the control circuit section.

Fig. 10 is a schematic diagram illustrating the operation of the lamp of embodiment 2.

Description of the reference numerals

1. 1A: lamps (auxiliary lamps, indoor lighting lamps); 2: a lamp body; 3: a light source unit (light source); 4: a lens; 5: a half mirror film; 6: a control circuit section; 31: a light source substrate; 32: an LED; 32 a: a white LED; 32 b: an ultraviolet LED; 42: a lens outer surface (light emitting surface); 44: a lens step; 51: a base film; 52: a colored film; 53: a protective film; 61: a first circuit section; 62: a second circuit section; CAR: automotive vehicles (vehicles); BP: a bumper (part of a vehicle); CT: ceiling garnishes (part of a vehicle); s1: an indoor lighting switch; s2: a human detection sensor (first detection means); s3: a solar radiation sensor (second detection unit).

Detailed Description

(embodiment mode 1)

Next, embodiments of the present invention will be described with reference to the drawings. Fig. 1 is a front view of embodiment 1 of a vehicle lamp 1 of the present invention configured as a decorative lamp (auxiliary lamp) at a front portion of a vehicle body of an automobile CAR as a vehicle. Headlamps HL and fog lamps FL are disposed on the left and right of a front panel FP of a vehicle body of the automobile CAR. Further, a front grill FG having a grid structure is provided on the front panel FP, a license plate LP is disposed at the center of the front grill FG, and a bumper BP extending in the left-right direction along the lower edge of the front grill FG is provided. The bumper BP is formed by coating or plating a part of a vehicle body with a metallic paint such as aluminum, thereby giving a silver appearance. A pair of auxiliary lamps 1 according to the present invention are disposed near the left and right ends of the bumper BP, respectively.

A pair of auxiliary lamps (hereinafter, simply referred to as lamps) 1 have the same configuration, and fig. 2 is an enlarged perspective view of a part of these lamps 1 and a bumper BP. The lamp 1 is configured as a lamp having a linear light-emitting surface having a desired width dimension and extending in the left-right direction by a desired length dimension. As described later, the bumper BP is configured to have an appearance as if it constitutes a part of each of both ends of the bumper BP when not lit, and to emit light as a light emitting surface when lit, thereby decorating the lamp of the automobile.

Fig. 3 is an exploded perspective view of the lamp 1. The lamp 1 includes: a lamp body 2 in a shallow groove shape having an elongated opening; a light source unit 3 disposed in the groove-shaped interior of the lamp body 2; and a lens 4 mounted in such a manner as to cover the front surface of the lamp body 1. As described later, the front grille FG is supported in a buried state at a predetermined position.

A pair of bosses 21 for fixing the light source unit 3 is arranged on the lamp body 2. The light source unit 3 includes an elongated light source substrate 31, and a plurality of light emitting elements, here, LEDs (light emitting diodes) 32 that emit blue light, are mounted on one surface of the light source substrate 31 in a state of being arranged in the longitudinal direction. The light source substrate 31 is fixed to the lamp body 2 by screws (small screws) 33 screwed to the bosses 21. The LEDs 32 are connected to an in-vehicle power supply (battery) via a power supply circuit (not shown) provided on the light source substrate 31, and emit light when power is supplied from the power supply circuit.

The lens 4 is formed of a colorless, light-transmitting resin, such as acrylic or glass, and is formed as a narrow groove-shaped cover having a length corresponding to the lamp body 2. The peripheral wall surface 41 of the lens 4 is fitted to the outer edge of the lamp body 2. The outer surface 42 of the lens 4 is formed in a gently curved surface shape in which the center portion in the width direction protrudes forward. The outer surface 42 is configured as a light emitting surface that emits light of the light source unit 3.

Fig. 4 is an enlarged sectional view taken along line IV-IV of fig. 2, and fig. 5 is a cut-away perspective view of a part of the lens 4. A desired lens step 44(lens step) is formed on an inner surface 43 of the lens 4, that is, a surface facing the light source unit 3 when the lens is attached to the lamp body 2. The lens step 44 refracts light emitted when the LED32 of the light source unit 3 emits light, and transmits the light through the lens 4 to be emitted from the outer surface 42. Here, the lens step 44 is configured as a fisheye step in which a plurality of spherical steps are arranged in a grid pattern in the vertical and horizontal directions.

A half mirror film 5 is formed on an outer surface 42 of the lens 4. As shown in fig. 4, the half mirror film 5 is a multilayer film in which a base film 51, a colored film 52, and a protective film 53 are laminated in this order from the outer surface 42 of the lens 4. The base film 51 is a film for securing adhesion between the lens 4 and the colored film 52. The protective film 53 is a film for preventing the colored film 52 from being discolored by being directly exposed to the outside air. The base film 51 and the protective film 53 are colorless or nearly colorless, have a light transmittance close to 100%, and have appropriate film thicknesses.

The colored film 52 is a film having a desired color. Here, the film is formed of a vapor deposition film in which aluminum is deposited, and is formed as a silver metallic colored film. In the present invention, gold and silver colors are also included in the color. The silver metallic color is the same as the appearance color of the bumper BP which is a part of the portion constituting the vehicle body of the automobile CAR shown in fig. 1. The colored film 52 is set to an appropriate film thickness, and the light transmittance thereof is appropriately set in accordance with the appearance of the lamp 1 when not lit, the thickness of the lens, the shape of the lens steps, and the like, as will be described later. Here, since the light transmittance of the colored film 52 is 5% or more, the light transmittance of the entire half mirror film 5 is substantially 5% or more, but in embodiment 1, the light transmittance is about 50%.

The half mirror film 5 transmits light emitted by the LEDs 32 of the light source unit 3 at a light transmittance ratio. On the other hand, light irradiated from the outside to the lamp 1 is transmitted at a ratio of light transmittance, and light having the same color as the colored film 52 is reflected. Therefore, when the light emitting surface 42 of the lamp 1 is observed with external light, a silver metallic color appears.

As shown in fig. 1, the lamp 1 configured as described above is disposed on a front grille FG of the automobile CAR, and is fixed to an opening of the front grille FG by a bracket 22 and a screw 23 as shown in fig. 4. In this state, only the outer surface 42 of the lens 4 serving as a light-emitting surface, that is, only the half mirror film 5 is substantially exposed. When the lamp 1 is observed, the inner surface side of the lens 4, that is, the inside of the lamp 1 is difficult to visually confirm by the half mirror film 5, and the light source unit 3 and the lens step 44 are difficult to observe from the outside. In particular, although a part of the light outside is reflected by the lens step 44 after passing through the half mirror film 5 and returns to the outside from the outer surface 42 of the lens 4, by appropriately setting the light transmittance of the half mirror film 5, the returned light is attenuated when passing back and forth through the half mirror film 5, and the lens step 44 is hardly observed from the outside. As a result, the appearance of the lamp 1 when the lamp 1 is not lit, that is, the appearance of the outer surface 42 of the lens 4, is visually recognized as a uniform silver metal surface.

Fig. 6 is a diagram schematically showing an external appearance of one of the pair of lamps 1 according to embodiment 1, and the lamp 1 is disposed in a position near the bumper BP having an external appearance of silver metal. As shown in fig. 6 (a), when the lamps are not lit, each lamp has a silver metallic appearance, which is the color of the colored film 52 of the half mirror film 5. Thereby, the lamp 1 has the same appearance color as the bumper BP, and presents an appearance as a part of the bumper BP. As shown in fig. 1, since the pair of lamps 1 are disposed at both ends of the bumper BP, the pair of lamps 1 provides an appearance in which both ends of the bumper BP extend inward in the vehicle width direction when the automobile CAR is viewed from the front. With such an appearance, it can be recognized that no lamp is disposed on the automobile CAR, and the appearance of the automobile can be improved while satisfying the design requirements of the automobile.

On the other hand, as shown in fig. 6 (b), when the lamp 1 is turned on, the LED32 of the light source unit 3 emits light, and blue light is emitted from the outer surface 42 of the lens 4 through the half mirror film 5. The blue light is refracted by the lens step 44, passes through the lens 4, further passes through the half mirror film 5, and is emitted toward the front of the vehicle. The amount of blue light emitted at this time is reduced by the half mirror film 5, but the lens step 44 is configured as a fisheye step composed of a plurality of spherical steps, and the blue light is condensed at each spherical step, so that when the lamp 1 is observed, high-brightness blue light is observed to be arranged in a grid-like light distribution pattern.

In this way, the pair of lamps 1, which are observed as a part of the bumper BP at the time of non-lighting, are observed as independent decorative lamps instead of being observed as a bumper, by emitting blue light at the time of lighting. This produces an effect of making a person observing the automobile feel unexpected, that is, an effect of making a portion recognized as being a part of the body of the automobile emit light as a lamp, and also produces the original decorative effect of the lamp.

Incidentally, the technique of patent document 1 includes a half mirror film on the outer surface of the lens, but there is no configuration in which the half mirror film is formed in the same color as the region constituting the vehicle body of the vehicle. Therefore, the lamp is not recognized as a part of the vehicle body of the automobile, and the lamp is not installed in the vehicle even when the lamp is not turned on, and the design requirement cannot be satisfied. In addition, the technique of patent document 1 cannot satisfy the design requirements of lamps and vehicles because the structures of the color of light emitted when the lamp emits light and the color of the half mirror film are not clear.

In embodiment 1 described above, although light of a color different from the appearance color of the half mirror film 5 is emitted, the light may be emitted in the same color as the appearance color of the half mirror film 5 as long as the light is emitted at a luminance that can be recognized as the lamp 1 by emitting light through the half mirror film 5 when the lamp 1 is turned on. In embodiment 1, an example of a lamp including a combination of an LED that emits blue light and a colorless lens has been described, but the lamp may be configured with an LED that emits light of another color. Alternatively, the LED may be configured by a combination of an LED that emits white light and a colored lens that becomes colored light when white light is transmitted. The half mirror film is not limited to a silver metal color, and may be a half mirror film of another color.

In embodiment 1, the present invention is applied to an auxiliary lamp for decoration, but may be applied to an auxiliary illuminating lamp such as a position light (blinker) or a marker lamp such as a turn signal lamp or a backup lamp. That is, by appropriately setting the light emission color of the lamp at the time of lighting and the observation color of the half mirror film at the time of non-lighting, it is possible to configure the lamp for various functions. For example, the light source may be formed of an LED that emits light of red, yellow, or the like, or the lens of the lamp may be formed of a colored lens of blue, red, yellow, or the like.

(embodiment mode 2)

Fig. 7 is a schematic perspective view of embodiment 2 in which the present invention is configured as an interior illumination lamp for an automobile. An indoor illumination lamp (hereinafter, referred to as a lamp) 1A is disposed in a part of a ceiling garnish CT which is one of interior trims of a vehicle compartment of an automobile. The ceiling garnish CT is made of an interior material of a predetermined color, here white, and a lamp 1A is disposed in a partially embedded state.

Fig. 8 is an enlarged sectional view taken along line VIII-VIII of fig. 7. The same reference numerals are given to equivalent parts to those of the lamp 1 of embodiment 1. The lamp 1A includes: a lamp body 2 in a rectangular shallow plate shape; a light source unit 3 disposed inside the lamp body 2; and a lens 4 mounted so as to close the opening of the lamp body 2. In addition, a control circuit portion 6 is disposed in the lamp body 2.

The light source unit 3 includes a rectangular light source substrate 31, and a plurality of light emitting elements 32 are mounted on one surface of the light source substrate. Here, the light emitting element 32 is composed of a white LED32a emitting white light (bulb color) and an ultraviolet LED32b emitting UV light (ultraviolet light). These white LED32a and ultraviolet LED32b are arranged in a state where they are appropriately mixed. These LEDs 32 (white LED32a and ultraviolet LED32b) are connected to the control circuit unit 6 via a power supply circuit provided on the light source substrate 31, and light emission is performed by controlling the power supply by the control circuit unit 6.

As shown in a partially enlarged cross section in fig. 8, the lens 4 has a desired lens step 44 formed on an inner surface 43 facing the light source unit 3 when attached to the lamp body 2. The lens step 44 is configured to refract light emitted from the white LED32a and the ultraviolet LED32b and to spread or diffuse the light over substantially the entire area in the vehicle cabin. Here, the lens step 44 is formed as a fine uneven step for texturing the inner surface 43 of the lens 4 to form a rough surface, and is configured to diffuse light of the LED32 and emit the light from the outer surface 42 of the lens 4.

The outer surface 42 of the lens 4 is a light-emitting surface for emitting light from the light source unit 3, and is formed as a flat plane or a gently curved surface. On the outer surface, a half mirror film 5 having a multilayer structure including a base film 51, a colored film 52, and a protective film 53 is formed as in embodiment 1. The colored film 52 of the half mirror film 5 is formed in white having the same appearance color as the ceiling garnish CT. The half mirror film 5 has a white light transmittance of 5% or more, preferably 5 to 80%. Here 50%. In addition, the spectral transmittance of the half mirror film 5 can transmit a region containing visible light to ultraviolet light.

Fig. 9 is a block circuit diagram of the control circuit unit 6. The vehicle-mounted battery is provided with a first circuit section 61 for emitting light from the white LED32a and a second circuit section 62 for emitting light from the ultraviolet LED32b, and is connected to the vehicle-mounted battery. Further, an indoor lighting switch S1 is connected to the first circuit unit 61, and when the indoor lighting switch S1 is turned on, the white LED32a is supplied with power from the first circuit unit 61 and emits light, thereby emitting white light.

On the other hand, the second circuit unit 62 is connected to the human detection sensor S2 and the solar radiation sensor S3, and when the sensors S2 and S3 detect each other, the second circuit unit 62 supplies power to the ultraviolet LED32b to emit light, thereby emitting ultraviolet light.

The human detection sensor S2 detects a passenger present in the vehicle cabin, and is configured by an infrared sensor disposed in a part of the ceiling garnish CT and detecting a passenger present in the vehicle cabin, for example, as shown in fig. 7. Alternatively, as shown in the figure, the sensor is a pressure-sensitive sensor that detects that a passenger is seated in a seat (seat) ST. The solar radiation sensor S3 is an illuminance sensor for detecting sunlight irradiated into the vehicle compartment. The illuminance sensor S3 is disposed in a part of the vehicle cabin. For example, as shown in the drawing, the center console is disposed in a part of an instrument panel DB installed in a vehicle cabin or in a part of a center console CC.

As shown in fig. 8, the lamp 1A configured as described above is disposed in a recessed portion provided in a part of the ceiling garnish CT in a buried state, and in the disposed state, only the outer surface 42 of the lens 4 serving as a light emitting surface, that is, the half mirror film 5 is exposed in the vehicle interior. Further, the half mirror film 5 reduces the visibility of the inner surface of the lens 4 and the inside of the lamp 1A, making it difficult to observe the light source unit 3 and the lens step 44 from the outside. Therefore, the appearance of the lamp 1A when it is not lit is in a state where the half mirror film 5 can be visually confirmed.

Since the half mirror film 5 is white in the same appearance color as the ceiling garnish CT, the lamp 1A appears to be integrated with the ceiling garnish CT when it is not lit, as schematically shown in fig. 10 (a), and it is recognized that the lamp 1 is not disposed in the ceiling garnish CT even when the passenger observes the vehicle interior. This makes it possible to satisfy the design requirements of the vehicle interior of the vehicle and to improve the appearance of the vehicle.

When the indoor lighting switch S1 is turned on, the white LED32a is caused to emit white light by the first circuit portion 61. The white light is transmitted through the lens 4 in a state of being diffused by the lens step 44 of the lens 4, and is further transmitted through the half mirror film 5 to be emitted into the vehicle compartment. Here, since the white LED32a emits light in a bulb color, the lamp 1A is visually recognized by being lit in a red color at a part of the white ceiling garnish CT as schematically shown in fig. 10 (b). Thus, the lamp 1A that is not recognized as being present by the ceiling garnish CT when not lit functions as an independent indoor illumination lamp when lit, and an effect that makes passengers in the vehicle cabin feel unexpected, that is, an effect that a part of the ceiling recognized as not having a lamp is emitted as a lamp, and an original illumination effect of the lamp are exhibited.

On the other hand, when the human detection sensor S2 detects an unmanned state, that is, when no passenger is present in the vehicle cabin, and when the sunshine sensor S3 detects that sunlight is not irradiated into the vehicle cabin, the ultraviolet LED32b is caused to emit light by the second circuit unit 62. The emitted ultraviolet light is transmitted through the lens 4 in a state of being diffused through the lens step 44, and further transmitted through the half mirror film 5 to be irradiated into the vehicle compartment. Thereby, the interior of the vehicle is sterilized by the ultraviolet light. Because the ultraviolet light is irradiated when passengers do not exist, the safety brought by the irradiation of the passengers by the ultraviolet light is ensured.

Further, even if the human detection sensor S2 detects an unattended state, the ultraviolet LED32b is configured not to emit light when the solar radiation sensor S3 detects solar radiation. That is, when sunlight is irradiated into the vehicle cabin, sterilization is performed by ultraviolet light included in the sunlight, and therefore irradiation with ultraviolet light by the lamp 1A is not necessary. In this way, even in a vehicle in which it is recognized that no lamp is present in the vehicle interior, the effect of automatically sterilizing the vehicle interior can be achieved.

In addition, the technique of patent document 2 does not have a half mirror film on the outer surface of the lens. Therefore, the presence of the lamp on the ceiling is not recognized, and the presence of the lamp can be confirmed by the passenger even when the lamp is not lit, and it is therefore difficult to satisfy the above-described design requirements.

In the lamp according to embodiment 2, the ultraviolet LED32b may be configured to emit light by the hand operation of the passenger. For example, although not shown, a sterilization switch is connected to the second circuit unit 62, and the sterilization switch is operated to emit light from the ultraviolet LED32 b. In the present invention, the lamp 1A may be configured not to include an ultraviolet LED, that is, may be configured only to illuminate the vehicle interior.

The light transmittance of the half mirror film in the present invention is not limited to the light transmittance described in

embodiments

1 and 2, and is set to an appropriate light transmittance according to a difference in the amount of light emitted from the light source of the lamp, a difference in the thickness of the lens, a difference in the light transmittance of the lens, a difference in the shape, size, and the like of the lens step of the lens, and the like.

The color of the half mirror film in the present invention may be the same color as that of a part of the vehicle adjacent to the lamp or a part of the vehicle existing in the vicinity of the lamp when the lamp is disposed in the vehicle, and the lamp may be observed as a part of the vehicle when the lamp is observed from the outside.

Claims

1. A vehicle lamp provided in a vehicle, the vehicle lamp comprising: a light source; and a lens that transmits light emitted from the light source and emits the light from the light emitting surface, wherein a half mirror film that transmits the light from the light source and reflects external light is provided on the light emitting surface of the lens, and the half mirror film is configured as a colored film having the same appearance color as at least a part of the vehicle.

2. The vehicle lamp according to claim 1, wherein light emitted through the lens and the half mirror film when the light source emits light is emitted in a color different from that of the half mirror film.

3. The vehicle lamp according to claim 1, wherein light emitted through the lens and the half mirror film when the light source emits light is emitted in the same color as the half mirror film.

4. The vehicle lamp according to claim 2 or 3, wherein the vehicle lamp is provided in a vehicle body of the vehicle, and the half mirror film is formed of an appearance color same as a part of the vehicle body.

5. The lamp for a vehicle according to claim 4, wherein the lamp for a vehicle is equipped close to a bumper of the vehicle, and the half mirror film is constituted by an appearance color of the bumper.

6. The vehicle lamp according to claim 4, wherein the vehicle lamp is disposed in a cabin of the vehicle, and the half-mirror film is formed of an appearance color same as a part of an interior of the cabin.

7. The vehicle lamp according to claim 6, wherein the vehicle lamp includes an ultraviolet light source that emits ultraviolet light to the light source.

8. The vehicle lamp according to claim 7, wherein the vehicle lamp is provided with: a first detection unit that detects a passenger in a vehicle compartment; and a second detection unit that detects the irradiation of sunlight into the vehicle cabin, and controls the emission of the ultraviolet light source based on the detection by the first detection unit and the second detection unit.

9. A vehicle provided with the vehicle lamp according to any one of claims 1 to 8.