JP2022189639A - Vehicular light fitting unit and vehicular light fitting device - Google Patents

Abstract

To provide a vehicular light fitting unit which can obtain a second light distribution pattern which is added to a first light distribution pattern and whose light distribution is precisely controlled, and to provide a vehicular light fitting device.SOLUTION: The invention includes: a low beam light source 10L; a low beam lens 1L; a high beam light source 10H; and a high beam optical member 1H. The high beam optical member 1H includes: a high beam lens 13H; and a high beam reflector 14H. As a result, the invention can obtain a high beam light distribution pattern HP which is added to a low beam light distribution pattern LP and whose light distribution is precisely controlled.SELECTED DRAWING: Figure 1

Description

The present invention relates to a vehicle lamp unit. The present invention also relates to a vehicle lamp device.

Examples of vehicle lamp units and vehicle lamp devices that irradiate a first light distribution pattern and a second light distribution pattern having a cutoff line along the left-right direction of a vehicle are disclosed in Patent Documents 1 and 2. be. Patent document 1 and patent document 2 are described below.

The vehicle lamp disclosed in Patent Document 1 includes a first light source and a first lens body, and a second light source and a second lens body. The first lens body includes an entrance surface, a reflective surface, a shade, an extended entrance surface and an exit surface. The second lens body includes an entrance surface, a reflection surface, a shade and an exit surface.

The vehicle lamp of Patent Document 1 forms a low-beam light distribution pattern as a first light distribution pattern and an ADB light distribution pattern as a second light distribution pattern. That is, the light from the first light source is incident on the entrance surface of the first lens body into the first lens body, and is emitted from the exit surface of the first lens body to the outside of the first lens body to form a low-beam light distribution pattern. Form. The low-beam light distribution pattern has a cut-off line formed at the upper edge of the shade.

Further, the light from the second light source enters the second lens body through the incident surface of the second lens body, exits the second lens body through the exit surface of the second lens body, and exits the second lens body. The light is incident on the inside of the first lens body from the incident surface and emitted from the exit surface of the first lens body to the outside of the first lens body to form a light distribution pattern for ADB. The ADB light distribution pattern is an additional light distribution pattern that is added to the low beam light distribution pattern. A cutoff line is formed at the lower edge of the shade by the shade, and the lower end overlaps the upper end of the low beam light distribution pattern. arranged horizontally in the form.

The headlight module of Patent Document 2 includes a first light source and a first light collecting optical element, a light guiding and projecting optical element, and a second light source and a second light collecting optical element. . The first condensing optical element and the second condensing optical element include an entrance surface, a reflective surface and an exit surface. The light guiding projection optics include an entrance surface, a reflective surface, an exit surface, additional entrance surfaces and ridges.

The headlight module of Patent Document 2 forms a low beam as a first light distribution pattern and a high beam as a second light distribution pattern. That is, the light from the first light source enters the inside of the first light-condensing optical element from the incident surface of the first light-condensing optical element, and passes through the exit surface of the first light-condensing optical element to the first light-condensing optical element. The light is emitted to the outside of the optical element, enters the inside of the light guiding and projecting optical element from the incident surface of the light guiding and projecting optical element, and exits from the emitting surface of the light guiding and projecting optical element to the outside of the light guiding and projecting optical element to form a low beam. The low beam has a cutoff line formed on the upper side by the ridgeline of the light guiding and projecting optical element.

Further, the light from the second light source enters the inside of the second light-condensing optical element from the incident surface of the second light-condensing optical element, and enters the second light-condensing optical element from the exit surface of the second light-collecting optical element. The light is emitted to the outside of the optical element, enters the inside of the light guiding and projecting optical element from the incident surface of the light guiding and projecting optical element, and exits from the emitting surface of the light guiding and projecting optical element to the outside of the light guiding and projecting optical element to form a high beam. The high beam is an additional light distribution pattern that is added to the low beam light distribution pattern, and a cutoff line is formed on the lower side by the ridge line of the light guiding and projecting optical element.

Japanese Patent No. 6364701 Japanese Patent No. 6130602

However, the vehicular lamp of Patent Document 1 allows the light from the second light source that has entered the inside of the second lens body to be emitted from the inside of the second lens body as it is, and is made to enter the inside of the first lens body. It emits light from inside the body to form a light distribution pattern for ADB. As a result, the vehicle lamp of Patent Document 1 has a problem in obtaining an ADB light distribution pattern in which the light distribution is precisely controlled.

On the other hand, in the headlamp module of Patent Document 2, the light from the second light source that has entered the inside of the second condensing optical element is directly emitted from the inside of the second condensing optical element, and the light guiding and projecting optical element A high beam is formed by making the light incident on the inside of the element and emitting it from the inside of the light guiding and projecting optical element. As a result, the headlight module of Patent Document 2 has a problem in obtaining a high beam whose light distribution is precisely controlled.

The problem to be solved by the present invention is a vehicle lamp unit capable of obtaining a second light distribution pattern that is added to a first light distribution pattern and whose light distribution is precisely controlled. An object of the present invention is to provide a vehicle lamp device.

A vehicle lamp unit of the present invention includes a first light source, a first optical member, a second light source, and a second optical member. 1 incident part, a first reflecting surface for reflecting the first incident light from the first incident part, and a cutoff line forming part of the first reflected light from the first reflecting surface to form a cutoff line an emission surface for emitting the first reflected light that has passed through the inner side of the first optical member from the cut-off line forming portion to the front of the vehicle as a first light distribution pattern having a cut-off line at the upper edge, and a cut-off line; an extended incident surface extending from the forming portion to the opposite side of the first incident portion, wherein the second optical member includes a second incident portion on which light from the second light source is incident; and a second reflecting surface that reflects the second incident light from the incident part, and the extended incident surface causes the second reflected light from the second reflecting surface to enter the first optical member as additional incident light. and the emission surface emits the additional incident light from the extended incidence surface forward of the vehicle as the second light distribution pattern.

In the vehicle lamp unit of the present invention, the second incident portion and the second reflecting surface are arranged vertically, and the second reflecting surface has a second reflecting area on the upper side and a second reflecting area on the lower side. and , wherein the upper second reflective area reflects the second reflected light below the second reflected light from the lower second reflective area.

In the vehicle lamp unit of the present invention, the upper second reflection area is provided above the horizontal line from the cut-off line forming portion or above the horizontal line from below the cut-off line forming portion. is preferably provided below the horizontal line.

In the vehicle lamp unit of the present invention, the lower second reflection area reflects the second reflected light from the lower second reflection area to the area of the lower edge of the second light distribution pattern, and the upper second reflection area reflects the second reflected light from the lower second reflection area. It is preferable that the second reflection area reflects the second reflected light from the upper second reflection area to an area above the lower edge of the second light distribution pattern.

In the vehicle lamp unit of the present invention, it is preferable that the area of the second reflective area on the lower side is larger than the area of the second reflective area on the upper side.

In the vehicle lamp unit of the present invention, the first optical member is composed of the first lens, the exit surface of the first optical member is composed of the first exit surface of the first lens, and the second optical member is composed of the first exit surface of the first lens. The member includes a second lens integrally or separately provided with the first lens, and a reflector separate from the first lens and the second lens, the second lens and a second exit surface that emits the second incident light from the second entrance to the outside reflector side. It is preferable to have a second reflecting surface that reflects the reflected light toward the extended incident surface.

In the vehicle lamp unit of the present invention, the first optical member is composed of the first lens, the exit surface of the first optical member is composed of the first exit surface of the first lens, and the second optical member is composed of the first exit surface of the first lens. The member is composed of a second lens provided integrally with or separately from the first lens, and includes a second incident portion and a second reflection of the second incident light from the second incident portion. It is preferable to provide a second reflecting surface for reflecting light, and a second emitting surface for emitting the second reflected light from the second reflecting surface to the extended incident surface side outside.

In the vehicle lamp unit of the present invention, it is preferable that the first light source and the second light source are mounted on the same plane.

In the vehicular lamp unit of the present invention, the first light source and the first optical member and the second light source and the second optical member are arranged one behind the other. and the front side with respect to the second optical member.

In the vehicular lamp unit of the present invention, the second light source and the second optical member are arranged to be inclined rearward and downward with respect to the first light source and the first optical member. preferable.

A vehicle lighting device according to the present invention includes a lamp lens and a lamp housing forming a lamp chamber, and a vehicle lighting unit according to the present invention arranged in the lamp chamber.

The vehicle lamp unit and the vehicle lamp device of the present invention are the second light distribution pattern added to the first light distribution pattern, and the second light distribution pattern that is precisely controlled in light distribution can be obtained.

FIG. 1 is a longitudinal sectional view showing Embodiment 1 of a vehicle lamp unit and a vehicle lamp device according to the present invention. FIG. 2 is a partially enlarged vertical cross-sectional view (enlarged view of section II in FIG. 1) showing the main part. FIG. 3 is an explanatory diagram showing a light distribution pattern emitted (irradiated). (A) is an explanatory diagram showing a low-beam light distribution pattern, which is a first light distribution pattern. (B) is an explanatory diagram showing a high-beam light distribution pattern, which is a second light distribution pattern. (C) is an explanatory diagram showing a low-beam light distribution pattern and a high-beam light distribution pattern that are superimposed. FIG. 4 is a longitudinal sectional view showing Embodiment 2 of the vehicle lamp unit and vehicle lamp device according to the present invention. FIG. 5 is a partially enlarged vertical cross-sectional view (enlarged view of portion V in FIG. 4) showing the main part.

Two embodiments (examples) of a vehicle lighting unit and a vehicle lighting device according to the present invention will be described in detail below with reference to the drawings. This embodiment applies to left-hand traffic in Japan, the United Kingdom, and the like.

In this specification and the appended claims, front, rear, top, bottom, left, and right refer to when the vehicle lighting lens, vehicle lighting unit, and vehicle lighting device according to the present invention are installed in a vehicle. before, after, above, below, left, and right. In the drawings, the symbol "F" is "front", "B" is "back", "U" is top, and "D" is "bottom".

FIG. 3 is an explanatory diagram showing a low beam light distribution pattern and a high beam light distribution pattern irradiated on a screen installed 25 m ahead of the vehicle. In FIG. 3, the symbol "VU-VD" indicates the vertical lines on the screen. The symbols "HL-HR" indicate the left and right horizontal lines of the screen.

Further, since the drawings are schematic diagrams showing the vehicle lighting unit and the vehicle lighting device according to the present invention, they show the main parts of the vehicle lighting unit and the vehicle lighting device according to the present invention, and show the parts other than the main parts. Illustration of parts is omitted. Furthermore, in FIGS. 1, 2, 4 and 5, hatching is omitted.

(Explanation of configuration of Embodiment 1)
1 to 3 show Embodiment 1 of a vehicle lamp unit and a vehicle lamp device according to the present invention. Hereinafter, the vehicle lamp unit 1U (hereinafter referred to as "vehicle lamp unit 1U") and the vehicle lamp device 100 (hereinafter referred to as "vehicle lamp device 100") according to the first embodiment will be described. ) will be described.

(Description of vehicle lighting device 100)
The vehicle lamp devices 100 are installed on the left and right sides of the front part of a vehicle (automobile) (not shown). In this example, the vehicle lighting device 100 has a low beam light distribution pattern LP as the first light distribution pattern shown in FIG. 3A and a high beam light distribution pattern as the second light distribution pattern shown in FIG. 3B. HP is a vehicle headlight (headlamp) that illuminates the front of the vehicle. The high-beam light distribution pattern HP of the second light distribution pattern is an additional light distribution pattern added to the low-beam light distribution pattern LP of the first light distribution pattern.

FIG. 1 is a longitudinal sectional view (vertical sectional view) showing a vehicle lamp device 100. FIG. As shown in FIG. 1, the vehicle lighting device 100 includes a lamp housing 101, a lamp lens 102, and a vehicle lighting unit 1U.

The lamp housing 101 is made of a light-impermeable resin member. The lamp lens 102 is made of a light-transmissive resin member or glass. The lamp lens 102 is an outer lens or outer cover. The lamp lens 102 is along the design surface of the vehicle.

A lamp chamber 103 is formed by the lamp housing 101 and the lamp lens 102 . In the lamp chamber 103, a vehicle lamp unit 1U, one or a plurality of other vehicle lamp units (not shown), an inner panel (not shown), and the like are arranged.

The vehicle lamp device 100 can irradiate the low beam light distribution pattern LP and the high beam light distribution pattern HP in front of the vehicle by the vehicle lamp unit 1U. Further, the vehicle lighting device 100 can illuminate, for example, a light distribution pattern for daytime running lamps, a light distribution pattern for front turn signal lamps, and the like, using other vehicle lighting units.

(Description of Low Beam Light Distribution Pattern LP and High Beam Light Distribution Pattern HP)
As shown in FIG. 3A, the low-beam light distribution pattern LP has a horizontal cut-off line along the left-right direction of the vehicle at the upper edge (upper side). The cutoff line consists of a lower horizontal cutoff line CLD on the right, an upper horizontal cutoff line CLU on the left, and a diagonal cutoff line CLS in the middle.

In the low-beam light distribution pattern LP, the intersection of the lower horizontal cutoff line CLD and the oblique cutoff line CLS is the elbow point, and the area near this elbow point is the high luminous area having the highest luminous intensity. The low-beam light distribution pattern LP illuminates the road surface below the cutoff lines CLD, CLS, and CLU, that is, the road surface from the front side of the vehicle to the front side of the vehicle in a wide range in the left-right direction. .

The high beam light distribution pattern HP is positioned at the upper edge (upper side) of the low beam light distribution pattern LP, as shown in FIGS. 3(B) and 3(C). The lower edge (lower side) of the high beam light distribution pattern HP overlaps the upper edge (upper side) of the low beam light distribution pattern LP along the cutoff lines CLD, CLS, and CLU of the low beam light distribution pattern LP. ing).

As shown in FIG. 3C, the high-beam light distribution pattern HP is a light distribution pattern that is more condensed (converged) than the low-beam light distribution pattern LP. The high-beam light distribution pattern HP may be a diffused light distribution pattern similar to the low-beam light distribution pattern LP. The luminous intensity of the high luminous intensity region of the high beam light distribution pattern HP is higher than the luminous intensity of the high luminous intensity region of the low beam light distribution pattern LP. The high beam light distribution pattern HP illuminates the road surface from the front side of the vehicle to the far side.

(Description of vehicle lamp unit 1U)
As shown in FIGS. 1, 2 and 3, the vehicle lamp unit 1U includes a low beam light source 10L as a first light source, a low beam optical member 1L as a first optical member, and a high beam light source as a second light source. and a high beam optical member 1H as a second optical member.

The high beam light source 10H of the second light source and the high beam optical member 1H of the second optical member are additional light sources and optical members added to the low beam light source 10L of the first light source and the low beam optical member 1L of the first optical member. is.

The low-beam light source 10L and the low-beam optical member 1L, and the high-beam light source 10H and the high-beam optical member 1H are arranged one behind the other in the horizontal direction.

(Description of Low Beam Light Source 10L and High Beam Light Source 10H)
In this example, the low beam light source 10L and the high beam light source 10H are self-luminous semiconductor light emitting element (semiconductor light emitting element) type light sources such as LED, OEL, or OLED (organic EL).

As shown in FIGS. 1 and 2, the low-beam light source 10L and the high-beam light source 10H are mounted on the same mounting member, in this example, on the bottom surface of the same substrate 12 in a substantially horizontal direction. Thus, the low beam light source 10L and the high beam light source 10H are arranged on the same plane.

The low beam light source 10L and the high beam light source 10H have light emitting surfaces 11L and 11H, respectively. The light emitting surfaces 11L and 11H are surfaces opposite to the surface attached to the substrate 12 and face downward.

Although omitted in the drawing, a heat sink is attached to the substrate 12 . As a result, the low beam light source 10L and the high beam light source 10H are attached to the same heat sink via the same substrate 12. FIG. The low beam light source 10L and the high beam light source 10H may be attached to separate substrates 12 and separate heat sinks. Also in this case, the low beam light source 10L and the high beam light source 10H are preferably mounted on the same plane.

(Description of the low-beam optical member 1L)
The low-beam optical member 1L is a light-transmissive member (resin member or the like), and in this example, is made of a colorless and transparent resin material such as acrylic resin, PC (polycarbonate), PMMA (polymethyl methacrylate, methacrylic resin). It is composed of a first lens. The low-beam optical member 1L is hereinafter referred to as a low-beam lens 1L.

The low-beam lens 1L receives the light L1 from the low-beam light source 10L, and irradiates forward of the vehicle a low-beam light distribution pattern LP having horizontal cutoff lines CLD, CLS, and CLU along the lateral direction of the vehicle.

As shown in FIGS. 1 and 2, the low-beam lens 1L includes a low-beam incident portion 2L as a first incident portion, a low-beam reflecting surface 3L as a first reflecting surface, a cut-off line forming portion 4L, and a It has a first exit surface 5L as an exit surface of one optical member, an extended incident surface 6L, and a horizontal surface 7L.

(Description of the low-beam incident portion 2L)
The low-beam incident portion 2L is provided on the upper surface of one end portion (rear end portion) of the low-beam lens 1L. The low beam incident portion 2L is provided facing the light emitting surface 11L of the low beam light source 10L. The low-beam incidence section 2L causes at least part of the light L1 from the low-beam light source 10L to enter as parallel light.

As shown in FIGS. 1 and 2, the low-beam incident portion 2L has a reflecting surface 20L, a first incident surface 21L, and a second incident surface 22L.

The low beam incident portion 2L has an incident portion optical axis (not shown). The incident portion optical axis passes through the centers of the reflecting surface 20L, the first incident surface 21L, and the second incident surface 22L. The first incident surface 21L and the second incident surface 22L are concave with respect to the reflecting surface 20L.

Among the light L1 from the light emitting surface 11L, the first incident surface 21L uses the light L1 having a solid angle of about 40° with the center of the light emitting surface 11L as the point (apex of the angle) as the first incident light L11. This is the surface for refracted incidence. Note that the solid angle is not particularly limited.

As shown in FIGS. 1 and 2, the second incident surface 22L has a solid angle of about 40° to about It is a surface that refracts and enters the light L1 up to 90 degrees as the second incident light L12. Note that the solid angle is not particularly limited. 22 L of 2nd entrance surfaces are side wall surfaces of the outer periphery of 21 L of 1st entrance surfaces. 22 L of 2nd entrance planes are provided in the outer side of 11 L of light emission surfaces.

The reflecting surface 20L is a surface that totally reflects the second incident light L12 incident from the second incident surface 22L as reflected light L13 parallel or substantially parallel to the incident portion optical axis.

(Description of the low-beam reflecting surface 3L)
The low-beam reflecting surface 3L is provided on the lower surface of one end portion (rear end portion) of the low-beam lens 1L. The low-beam incident portion 2L and the low-beam reflecting surface 3L are arranged one above the other. As shown in FIGS. 1 and 2, the low-beam reflecting surface 3L is basically a paraboloid of revolution (not shown). The low-beam reflecting surface 3L converts the first incident light (that is, the first incident light L11 and the reflected light L13) from the low-beam incident section 2L into the first reflected light L14, the cut-off line forming section 4L, the first emission The light is reflected toward the surface 5L and the extended incident surface 6L.

(Description of cut-off line forming portion 4L)
The cut-off line forming unit 4L controls part of the first reflected light L14 from the low-beam reflecting surface 3L to form a cut-off line along the left-right direction of the vehicle, that is, as shown in FIGS. A lower horizontal cutoff line CLD, an upper horizontal cutoff line CLU and an oblique cutoff line CLS of the low beam light distribution pattern LP are formed.

The cut-off line forming portion 4L is provided between the low-beam reflecting surface 3L and the first exit surface 5L. The cut-off line forming portion 4L is provided on the lower surface of the intermediate portion in the front-rear direction of the low-beam lens 1L. The cut-off line forming portion 4L has a corner formed by the vertical extended incident surface 6L and the horizontal surface 7L. The vertical extended incident surface 6L is inclined backward on the upper side and forward on the lower side.

A corner portion of the cut-off line forming portion 4L extends linearly or curvedly in the lateral direction of the vehicle.

The cut-off line forming portion 4L has a lower horizontal cut-off line forming portion, an upper horizontal cut-off line forming portion, and an oblique cut-off line forming portion. The lower horizontal cut-off line forming portion is provided on the left side of the center in the horizontal direction, and forms the lower horizontal cut-off line CLD of the low-beam light distribution pattern LP. The upper horizontal cut-off line forming part is provided on the right side of the center in the left-right direction, and forms the upper horizontal cut-off line CLU of the low-beam light distribution pattern LP. The oblique cutoff line forming portion is provided in the central portion in the left-right direction, and forms the oblique cutoff line CLS of the low-beam light distribution pattern LP.

The cut-off line forming portion 4L may block the light by, for example, refracting or internally reflecting the light reaching the cut-off line forming portion 4L in a direction different from the direction of the first emission surface 5L. A light absorption layer may be arranged in a portion corresponding to the cut-off line forming portion 4L of the horizontal plane including the cutoff line, and the light may be absorbed by this light absorption layer. The light internally reflected or refracted by the cut-off line forming portion 4L is emitted to the outside of the low-beam lens 1L, and an inner panel (inner housing) is arranged outside the low-beam lens 1L and inside the lamp chamber 103. etc.), the light is blocked or absorbed and is not emitted to the outside of the lamp chamber 103 .

(Description of the first emission surface 5L)
The first emission surface 5L is provided on the front surface of the other end portion (front end portion) of the low-beam lens 1L. The first emission surface 5L emits the first reflected light L14 that has passed through the inside of the low-beam lens 1L from the cutoff line forming portion 4L as a light distribution pattern having a cutoff line. That is, the first emission surface 5L irradiates the front of the vehicle with the first reflected light L14 as the first emission light L15. The first emitted light L15 has a low-beam light distribution pattern LP (a low-beam light distribution pattern LP having a lower horizontal cutoff line CLD, an upper horizontal cutoff line CLU, and an oblique cutoff line CLS) shown in FIGS. Form.

(Description of the low-beam reflecting surface 3L and the first emitting surface 5L)
The low-beam reflecting surface 3L has a surface shape in which a basic paraboloid of revolution is continuously extended in the lateral direction of the vehicle. The first emission surface 5L has an emission surface focus LF in the vicinity of the cutoff line forming portion 4L.

The first reflected light L14 from the low-beam reflecting surface 3L diffuses in the left-right direction along the cut-off line forming portion 4L or its vicinity. Therefore, as shown in FIGS. 3A and 3C, a low-beam light distribution pattern LP with a wide left-right diffusion width is formed.

(Description of High Beam Optical Member 1H)
The high beam optical member 1H includes a high beam lens 13H as a second lens and a high beam reflector 14H as a reflector.

(Description of high beam lens 13H)
Like the low beam lens 1L, the high beam lens 13H is a light transmissive member (resin member or the like), and in this example, acrylic resin, PC (polycarbonate), PMMA (polymethyl methacrylate, methacrylic resin). It consists of a colorless transparent resin material such as

In this example, the high beam lens 13H is provided integrally with the low beam lens 1L in the front and rear. That is, the rear end portion of the low beam lens 1L between the low beam incident portion 2L and the low beam reflecting surface 3L and the lower end portion of the high beam lens 13H are integrally connected. The high beam lens 13H may be provided separately from the low beam lens 1L. The high-beam lens 13H has a high-beam entrance portion 2H as a second entrance portion and a second exit surface 15H.

(Description of High Beam Incident Portion 2H)
The high beam incident portion 2H is provided on the upper portion of the high beam lens 13H. The high beam incident portion 2H is provided below the light emitting surface 11H of the high beam light source 10H. The high-beam incidence section 2H causes at least part of the light L2 from the high-beam light source 10H to enter as parallel light.

As shown in FIGS. 1 and 2, the high-beam incident section 2H has a reflecting surface 20H, a first incident surface 21H and a second incident surface 22H, similarly to the low-beam incident section 2L.

The high beam incident portion 2H has an incident portion optical axis (not shown). The incident part optical axis passes through the centers of the reflecting surface 20H, the first incident surface 21H and the second incident surface 22H. The first incident surface 21H and the second incident surface 22H are concave with respect to the reflecting surface 20H.

The first incident surface 21H uses the light L2 from the light emitting surface 11H, which has a solid angle of about 40° with the center of the light emitting surface 11H as the point (apex of the angle), as the first incident light L21. This is the surface for refracted incidence. Note that the solid angle is not particularly limited.

As shown in FIGS. 1 and 2, the second incident surface 22H has a solid angle of about 40° to about It is a surface that refracts and enters the light L2 up to 90 degrees as the second incident light L22. Note that the solid angle is not particularly limited. The second incident surface 22H is a side wall surface on the outer circumference of the first incident surface 21H. The second incident surface 22H is provided outside the light emitting surface 11H.

The reflecting surface 20H is a surface that totally reflects the second incident light L22 incident from the second incident surface 22H as reflected light L23 parallel or substantially parallel to the incident portion optical axis.

(Description of the second emission surface 15H)
The second emission surface 15H is provided on the lower surface of the high beam lens 13H. The second exit surface 15H is provided between the upper high-beam incident portion 2H and the lower high-beam reflector 14H.

The second emission surface 15H emits the second incident light (that is, the first incident light L21 and the reflected light L23) from the high beam incident portion 2H toward the external high beam reflector 14H.

(Description of high beam reflector 14H)
The high beam reflector 14H is provided separately from the low beam lens 1L and the high beam lens 13H. The high beam reflector 14H is arranged in a space behind the low beam lens 1L and below the high beam lens 13H.

One surface of the high beam reflector 14H is provided below the second emission surface 15H on the lower surface of the high beam lens 13H. One surface of the high-beam reflector 14H is provided behind the low-beam reflecting surface 3L, the cut-off line forming portion 4L, and the extended incident surface 6L at the rear end portion of the low-beam lens 1L. A high beam reflecting surface 3H as a second reflecting surface is provided on one surface of the high beam reflector 14H.

(Description of High Beam Reflecting Surface 3H)
Similar to the low-beam reflecting surface 3L, the high-beam reflecting surface 3H is basically a paraboloid of revolution (not shown), as shown in FIGS. The high-beam reflecting surface 3H reflects the second emitted light emitted from the second emission surface 15H (that is, the second incident light from the high-beam incident portion 2H, which is the first incident light L21 and the reflected light L23). Cutoff lines as the second reflected light L24D (see the long dashed line among the dashed lines in FIGS. 1 and 2) and L24U (see the short dashed line among the dashed lines in FIGS. 1 and 2) The light is reflected toward the forming portion 4L and the extended incident surface 6L.

The high beam reflecting surface 3H has an upper high beam reflecting area 3HU and a lower high beam reflecting area 3HD.

The upper high-beam reflecting area 3HU is a second reflecting area above the horizontal line H from the cut-off line forming portion 4L in the high-beam reflecting surface 3H. The lower high-beam reflecting area 3HD is a second reflecting area below the horizontal line H from the cut-off line forming portion 4L in the high-beam reflecting surface 3H. In this example, the horizontal line H is positioned on the horizontal plane 7L of the cutoff line forming portion 4L, as indicated by the two-dot chain line in FIGS. Here, 7 L of horizontal surfaces have a function as a reflective surface. In some cases, a reflecting surface projecting downward is provided on the horizontal surface 7L. In this case, the horizontal line H is drawn from a point below the cutoff line forming portion 4L.

The lower high-beam reflection area 3HD converts the second emitted light (the second incident light (the first incident light L21 and the reflected light L23)) into a second reflected light L24D, which is cut off from the extended incident surface 6L. The light is reflected in the vicinity of the forming portion 4L. As a result, the second reflected light L24D illuminates the area on the lower edge side (lower side) of the high beam light distribution pattern HP. On the other hand, the upper high-beam reflection area 3HU converts the second emitted light (the second incident light (the first incident light L21 and the reflected light L23)) into the second reflected light L24U on the extended incident surface 6L. 2 Reflect to a position away from the vicinity of the cut-off line forming portion 4L where the reflected light L24D is reflected. As a result, the second reflected light L24U illuminates a region above the lower edge side (lower side) of the high beam light distribution pattern HP.

The area of the lower high beam reflection area 3HD is larger than the area of the upper high beam reflection area 3HU. The lower high beam reflection area 3HD converges (converges) the second reflected light L24D from the lower high beam reflection area 3HD more than the second reflected light L24U from the upper high beam reflection area 3HU. It is the reflective surface of the condensing (converging) system.

(Description of extended incident surface 6L)
The extended incident surface 6L converts the second reflected light beams L24D and L24U that have passed through the cutoff line forming portion 4L into additional incident light beams L26D (see the long dashed lines in FIGS. 1 and 2) and L26U ( 1 and 2, the light beam is made incident again into the low-beam lens 1L.

(Re-description of the first emission surface 5L)
The first emission surface 5L converts the additional incident light L26D and L26U, which are the second reflected lights L24D and L24U that have passed through the cutoff line forming portion 4L, into the second emitted light L25D (broken lines in FIGS. 1 and 2, (see the long dashed line) and L25U (see the short dashed line among the dashed lines in FIGS. 1 and 2) to illuminate the front of the vehicle. Thereby, a high beam light distribution pattern HP is formed.

(Description of the action of Embodiment 1)
The vehicle lighting unit 1U according to the first embodiment and the vehicle lighting device 100 according to the first embodiment are configured as described above, and their functions will be described below.

The low beam light source 10L is turned on. Then, the light L1 from the low-beam light source 10L enters the low-beam lens 1L from the low-beam incident portion 2L of the low-beam lens 1L. The first incident light (i.e., the first incident light L11 and the reflected light L13) entering the low-beam lens 1L from the low-beam incident portion 2L is cut off as the first reflected light L14 on the low-beam reflecting surface 3L. The light is reflected to the forming portion 4L side.

A portion of the first reflected light L14 is controlled by the cutoff line forming section 4L. The first reflected light L14 that has passed through the inside of the low-beam lens 1L from the cut-off line forming portion 4L is emitted forward of the vehicle as the first emitted light L15 from the first emission surface 5L. The first emitted light L15 forms a low-beam light distribution pattern LP shown in FIGS. 3(A) and 3(C).

The high beam light source 10H is turned on while the low beam light source 10L is kept turned on. Then, the light L2 from the high-beam light source 10H enters the high-beam lens 13H from the high-beam incident portion 2H of the high-beam lens 13H. The second incident light (that is, the first incident light L21 and the reflected light L23) that has entered the inside of the high beam lens 13H from the high beam incident portion 2H passes through the second output surface 15H to the high beam reflector outside the high beam lens 13H. 14H side, and is reflected by the high beam reflecting surface 3H as second reflected lights L24D and L24U toward the cutoff line forming portion 4L side.

The second reflected lights L24D and L24U pass through the cutoff line forming portion 4L and enter the low-beam lens 1L again from the extended incident surface 6L as additional incident lights L26D and L26U.

The additional incident light beams L26D and L26U are emitted forward of the vehicle from the first emission surface 5L as the second emitted light beams L25D and L25U. The second emitted lights L25D and L25U form the high beam light distribution pattern HP shown in FIGS. 3(B) and 3(C). The high beam distribution pattern HP is added to the low beam distribution pattern LP as shown in FIG. 3(C).

(Description of the effects of the first embodiment)
The vehicle lighting unit 1U according to the first embodiment and the vehicle lighting device 100 according to the first embodiment are configured and function as described above, and the effects thereof will be described below.

In the vehicle lamp unit 1U according to the first embodiment, the high-beam optical member 1H includes a high-beam incident portion 2H and a high-beam reflecting surface 3H. The high-beam incident section 2H causes the light L2 from the high-beam light source 10H to enter as the second incident light (that is, the first incident light L21 and the reflected light L23). The high-beam reflecting surface 3H reflects the second incident light from the high-beam incident portion 2H as second reflected lights L24D and L24U.

As a result, the vehicle lamp unit 1U according to the first embodiment converts the second reflected lights L24D and L24U, whose light distribution is controlled by the high beam reflecting surface 3H, into additional incident lights L26D and L26U from the extended incident surface 6L to produce a low beam. The additional incident light beams L26D and L26U are emitted from the first emission surface 5L to the outside of the low beam lens 1L to form a high beam light distribution pattern HP. As a result, the vehicle lamp unit 1U according to the first embodiment can obtain a high-beam light distribution pattern HP in which light distribution is precisely controlled by the high-beam reflecting surface 3H.

In the vehicle lamp unit 1U according to the first embodiment, the high beam reflecting surface 3H has an upper high beam reflecting area 3HU and a lower high beam reflecting area 3HD. The upper high beam reflection area 3HU reflects the second reflected light L24U below the second reflected light L24D from the lower high beam reflection area 3HD.

As a result, the vehicle lamp unit 1U according to the first embodiment can precisely control the light distribution of the high beam light distribution pattern HP.

In the vehicle lamp unit 1U according to the first embodiment, the upper high beam reflection area 3HU is provided above the horizontal line H from the cutoff line forming portion 4L in the high beam reflection surface 3H. The lower high-beam reflection area 3HD is provided above the horizontal line H. As shown in FIG.

As a result, the vehicle lamp unit 1U according to the first embodiment can precisely control the light distribution of the high beam light distribution pattern HP.

In the vehicle lamp unit 1U according to the first embodiment, the lower high-beam reflection area 3HD reflects the second reflected light L24D from the lower high-beam reflection area 3HD to the area of the lower edge of the high-beam light distribution pattern HP. reflect to The upper high beam reflection area 3HU reflects the second reflected light L24U from the upper high beam reflection area 3HU to an area above the lower edge of the high beam distribution pattern HP.

As a result, the vehicle lamp unit 1U according to the first embodiment can precisely control the light distribution of the high beam light distribution pattern HP.

In the vehicle lamp unit 1U according to the first embodiment, the area of the lower high beam reflection area 3HD is larger than the area of the upper high beam reflection area 3HU.

As a result, the vehicle lamp unit 1U according to the first embodiment is suitable for forming a high luminous intensity band at the lower end edge of the high beam light distribution pattern HP.

A vehicle lamp unit 1U according to the first embodiment includes a low beam lens 1L and a high beam optical member 1H. The low beam lens 1L is composed of a first lens. The high beam optical member 1H includes a high beam lens 13H as a second lens and a high beam reflector 14H. The low beam lens 1L of the first lens and the high beam lens 13H of the second lens are integrally provided. The high beam reflector 14H, the low beam lens 1L, and the high beam lens 13H are provided separately.

As a result, since the vehicle lamp unit 1U according to the first embodiment is integrally provided with the low beam lens 1L and the high beam lens 13H, the relative positional relationship between the low beam lens 1L and the high beam lens 13H is can be maintained precisely, and the number of parts can be reduced.

Further, in the vehicle lamp unit 1U according to the first embodiment, the high beam reflector 14H, the low beam lens 1L, and the high beam lens 13H are provided separately. The structure of 1L and the high beam lens 13H can be easily manufactured separately, and the structure of the high beam reflector 14H and the structure of the low beam lens 1L and the high beam lens 13H can be separately manufactured. can be succinct. In addition, the degree of freedom in designing the high beam reflecting surface 3H of the high beam reflector 14H and the low beam reflecting surface 3L of the low beam lens 1L is increased.

A vehicle lamp unit 1U according to the first embodiment has a low beam light source 10L and a high beam light source 10H mounted on the same plane. As a result, in the vehicle lamp unit 1U according to the first embodiment, the substrate 12 and the accompanying heat sinks can be shared for the low beam light source 10L and the high beam light source 10H without separately arranging them. Accordingly, the number of parts can be reduced, and the manufacturing cost can be reduced.

In the vehicle lamp unit 1U according to the first embodiment, a low beam light source 10L, a low beam lens 1L, a high beam light source 10H and a high beam optical member 1H are arranged in front and behind in the horizontal direction. As a result, the vehicular lamp unit 1U according to the first embodiment can keep the height in the vertical direction low, and is most suitable for a lamp that is thin in the vertical direction.

In the vehicle lamp unit 1U according to the first embodiment, the low beam light source 10L and the low beam lens 1L are arranged in front of the high beam light source 10H and the high beam optical member 1H. As a result, the vehicle lamp unit 1U according to the first embodiment can form a low-beam light distribution pattern LP whose light distribution is precisely controlled.

In the vehicle lamp unit 1U according to the first embodiment, the high beam light source 10H and the high beam optical member 1H are inclined rearward and downward with respect to the low beam light source 10L and the low beam lens 1L. are placed. As a result, the vehicle lamp unit 1U according to the first embodiment can form a high-beam light distribution pattern HP in which the light distribution is precisely controlled.

(Description of the configuration of the second embodiment)
4 and 5 show Embodiment 2 of the vehicle lamp unit and vehicle lamp device according to the present invention. Hereinafter, a vehicle lighting unit 1AU (hereinafter referred to as "vehicle lighting unit 1AU") according to the second embodiment and a vehicle lighting device 100A (hereinafter referred to as "vehicle lighting device 100A") according to the second embodiment will be described. ) will be described. 1 to 3 indicate the same items.

The high-beam optical member 1H in the vehicle lamp unit 1U of Embodiment 1 includes a high-beam lens 13H and a high-beam reflector 14H. On the other hand, the high-beam optical member 1AH in the vehicle lamp unit 1AU of the second embodiment is composed of a high-beam lens 1AH. The high-beam optical member 1AH is hereinafter referred to as a high-beam lens 1AH.

(Description of high beam lens 1AH)
The high-beam lens 1AH is arranged horizontally in front and behind the low-beam lens 1L. The front surface of the high-beam lens 1AH faces the low-beam incident portion 2L, the low-beam reflecting surface 3L, the cut-off line forming portion 4L, and the extended incident surface 6L on the rear surface of the low-beam lens 1L.

The high beam lens 1AH is provided integrally with the low beam lens 1L (see broken lines in FIGS. 4 and 5) or separately. When the high-beam lens 1AH and the low-beam lens 1L are integrated, a space S is provided between the front surface of the intermediate portion of the high-beam lens 1AH and the low-beam reflecting surface 3L at the rear surface of the low-beam lens 1L. need to form.

Due to this space S, the first incident light (the first incident light L11 and the reflected light L13) is reflected by the low-beam reflecting surface 3L. That is, when the space S is not formed, the first incident light (the first incident light L11 and the reflected light L13) travels straight without being reflected by the low-beam reflecting surface 3L. A space S is formed to prevent the first incident light (the first incident light L11 and the reflected light L13) from traveling straight.

The high beam lens 1AH includes a high beam entrance portion 2AH as a second entrance portion, a high beam reflection surface 3AH as a second reflection surface, and a second exit surface 15AH.

(Description of High Beam Incident Portion 2AH)
The high beam incident portion 2AH is provided at the upper end portion of the high beam lens 13AH. The high beam incident portion 2AH faces the light emitting surface 11H of the high beam light source 10H.

The high beam entrance portion 2AH of the second embodiment has a reflecting surface 20H, a first entrance surface 21H, and a second entrance surface 22H, like the high beam entrance portion 2H of the first embodiment. .

(Description of high beam reflecting surface 3AH)
The high beam reflecting surface 3H of the first embodiment is provided on the high beam reflector 14H. On the other hand, the high beam reflecting surface 3AH of the second embodiment is provided on the high beam lens 1AH.

The high beam reflecting surface 3AH is provided on the rear surface of the high beam lens 13AH from the intermediate portion to the lower end portion. The high-beam reflecting surface 3AH is provided below the high-beam incident portion 2AH. Further, the high-beam reflecting surface 3AH is provided on the rear side of the second emission surface 15AH. The high-beam incident portion 2AH and the high-beam reflecting surface 3AH of the high-beam lens 13AH are arranged vertically.

The high-beam reflecting surface 3H converts the second incident light (the first incident light L21 and the reflected light L23) from the high-beam incident portion 2AH into the second reflected light L24D and L24U, and passes through the second exit surface 15AH to the cut-off line forming portion. 4L and the extended incident surface 6L are reflected.

Further, the high beam reflecting surface 3AH of the second embodiment has an upper high beam reflecting area 3AHU and a lower high beam reflecting area 3AHD, similarly to the high beam reflecting surface 3H of the first embodiment. .

(Description of the second emission surface 15AH)
The second emission surface 15AH is provided on the front surface of the lower end portion of the high beam lens 13AH. The second emission surface 15AH is provided in front of the high beam reflecting surface 3AH. The second exit surface 15AH is provided behind the cut-off line forming portion 4L and the extended incident surface 6L on the rear surface of the low-beam lens 1L.

The second emission surface 15AH emits the second reflected light beams L24D and L24U from the high beam reflection surface 3AH toward the cutoff line forming portion 4L and the extended incidence surface 6L on the rear surface of the low beam lens 1L.

(Description of the action of Embodiment 2)
The vehicle lighting unit 1AU according to the second embodiment and the vehicle lighting device 100A according to the second embodiment are configured as described above, and their functions will be described below.

The configuration of the low beam light source 10L and the low beam optical member 1L in the vehicle lamp unit 1AU of the second embodiment is similar to the configuration of the low beam light source 10L and the low beam optical member 1L in the vehicle lamp unit 1U of the first embodiment. Almost the same. Therefore, when the low-beam light source 10L is turned on, the low-beam light distribution pattern LP shown in FIGS. 3A and 3C is projected forward of the vehicle.

The configuration of the high beam incident portion 2AH in the vehicle lamp unit 1AU of the second embodiment is substantially the same as the configuration of the high beam incident portion 2H in the vehicle lamp unit 1U of the first embodiment. Therefore, the high-beam light source 10H is turned on while the low-beam light source 10L is turned on. Then, the light L2 from the high-beam light source 10H enters from the high-beam incident portion 2AH of the high-beam lens 1AH as second incident light (first incident light L21 and reflected light L23).

The second incident light (the first incident light L21 and the reflected light L23) passes through the second exit surface 15AH as the second reflected light L24U in the upper high-beam reflection area 3AHU, and passes through the extended entrance surface 6L as a cut-off line. The light is reflected below the forming portion 4L. The second incident light (the first incident light L21 and the reflected light L23) passes through the second output surface 15AH as the second reflected light L24D in the lower high-beam reflection area 3AHD and cuts out of the extended incident surface 6L. The light is reflected in the vicinity of the off-line forming portion 4L.

The second reflected lights L24D and L24U pass through the second emission surface 15AH, are once emitted from the high-beam lens 1AH to the outside, pass through the extended incident surface 6L, and enter the low-beam lens 1L inside the additional incident lights L26D and L26U. , and enter again.

The additional incident light beams L26D and L26U are projected forward of the vehicle from the first exit surface 5L of the low-beam lens 1L as second exit light beams L25D and L25U. The second outgoing light beams L25D and L25U are projected forward of the vehicle as the high beam light distribution pattern HP shown in FIGS. 3(B) and 3(C). As a result, the high beam distribution pattern HP is added to the low beam distribution pattern LP as shown in FIG. 3(C).

(Description of the effects of the second embodiment)
Since the vehicle lighting unit 1AU according to the second embodiment and the vehicle lighting device 100A according to the second embodiment have the configurations and functions as described above, the vehicle lighting according to the first embodiment is possible. Effects similar to those of the unit 1U and the vehicle lighting device 100 according to the first embodiment can be achieved.

In particular, in the vehicle lamp unit 1AU according to the second embodiment, the high beam optical member 1AH is composed of the high beam lens 1AH. Compared to the member 1H, which is composed of a high beam lens 13H and a high beam reflector 14H, the high beam light distribution pattern HP can be controlled more precisely. Moreover, the structure is simple, the number of parts can be reduced, and the manufacturing cost can be reduced accordingly.

Moreover, in the vehicle lamp unit 1AU according to the second embodiment, the high-beam optical member 1AH is inclined rearward and downward with respect to the low-beam lens 1L. As a result, the vehicle lamp unit 1AU according to the second embodiment converts the second incident light (the first incident light L21 and the reflected light L23) into the second reflected light on the high beam reflecting surface 3AH of the high beam lens 1AH. As L24D and L24U, total reflection can be ensured.

(Description of examples other than Embodiments 1 and 2)
It should be noted that the first and second embodiments described above are applied to left-hand traffic in Japan, the United Kingdom, and the like. However, the present invention can also be applied to right-hand traffic in Western countries. In the case of right-hand traffic, the right and left are reversed in the case of left-hand traffic. For example, the low-beam light distribution pattern LP and the high-beam light distribution pattern HP shown in FIG. 3 are left-right reversed low-beam light distribution pattern and high-beam light distribution pattern.

Further, in the first and second embodiments, the high-beam light distribution pattern HP is described as the second light distribution pattern. However, in the present invention, the second light distribution pattern can be applied to a light distribution pattern other than the high-beam light distribution pattern HP, such as an ADB light distribution pattern. In addition to the horizontal cut-off line, the ADB light distribution pattern also requires a vertical cut-off line.

Further, in Embodiments 1 and 2, the low-beam light source 10L and the low-beam lens 1L, the high-beam light source 10H and the high-beam optical member (the high-beam lens 13H and the high-beam reflector 14H) of the first embodiment, and the 2 high-beam lenses 1AH are arranged one behind the other in the horizontal direction. However, in the present invention, the low-beam light source 10L and the low-beam lens 1L, the high-beam light source 10H and the high-beam optical members of the first embodiment (the high-beam lens 13H and the high-beam reflector 14H), and the high-beam lens of the second embodiment 1AH may be arranged horizontally or diagonally to the left and right, or may be arranged vertically or diagonally in the vertical direction.

Furthermore, in the first and second embodiments, the low-beam light source 10L and the high-beam light source 10H are attached to the same lower surface, which is the same surface, of the same substrate 12 as the same mounting member. . However, in the present invention, the low-beam light source 10L and the high-beam light source 10H may be mounted on separate mounting members, that is, separate substrates, or may be mounted on separate surfaces. In this case, the heat sinks may be the same heat sink or separate heat sinks.

It should be noted that the present invention is not limited to the first embodiment described above.

1U vehicle lamp unit 1L low beam lens (low beam optical member, first optical member)
10L low beam light source (first light source)
11L Light-emitting surface 12 Substrate 2L Low-beam incident part (first incident part)
20L reflecting surface 21L first incident surface 22L second incident surface 3L low beam reflecting surface (first reflecting surface)
4L cut-off line forming portion 5L first exit surface 6L extended entrance surface 7L horizontal surface 1H optical member for high beam (second optical member)
10H High beam light source (second light source)
11H light emitting surface 13H high beam lens 14H high beam reflector 15H second emission surface 2H high beam incidence portion (second incidence portion)
20H reflecting surface 21H first incident surface 22H second incident surface 3H high beam reflecting surface (second reflecting surface)
3HU upper high beam reflection area 3HD lower high beam reflection area 100 vehicle lighting device 101 lamp housing 102 lamp lens 103 lamp chamber 1AU vehicle lighting unit 1AH high beam lens (high beam optical member, second optical member)
15AH Second emission surface 2AH High beam incident portion (second incident portion)
3AH Reflective surface for high beam (second reflecting surface)
3AHU Upper high beam reflection area 3AHD Lower high beam reflection area 100A Vehicle lighting device L1 Light (light from low beam light source 10L)
L11 first incident light (first incident light)
L12 second incident light L13 reflected light (first incident light)
L14 first reflected light L15 first emitted light L2 light (light from high beam light source 10H)
L21 first incident light (second incident light)
L22 second incident light L23 reflected light (second incident light)
L24D, L24U Second reflected light L25D, L25U Second emitted light L26D, L26U Additional incident light LF Output surface focus F Front B Back U Top D Bottom LP Low beam light distribution pattern (first light distribution pattern)
CLD Lower horizontal cutoff line CLS Diagonal cutoff line CLU Upper horizontal cutoff line HP High beam light distribution pattern (second light distribution pattern)
HL-HR Left and right horizontal lines of the screen VU-VD Vertical lines of the screen S Space

Claims (11)

comprising a first light source, a first optical member, a second light source, and a second optical member;
The first optical member is
a first incident portion for incident light from the first light source;
a first reflecting surface that reflects the first incident light from the first incident portion;
a cutoff line forming unit that forms a cutoff line by controlling part of the first reflected light from the first reflecting surface;
an emission surface that emits the first reflected light that has passed through the inside of the first optical member from the cutoff line forming portion toward the front of the vehicle as a first light distribution pattern having the cutoff line at an upper edge thereof;
an extended incident surface provided by extending from the cutoff line forming portion to the opposite side of the first incident portion;
with
The second optical member is
a second incidence section for incidence of light from the second light source;
a second reflecting surface that reflects the second incident light from the second incident portion;
with
the extended incident surface causes the second reflected light from the second reflective surface to enter the first optical member as additional incident light;
the exit surface emits the additional incident light from the extended incident surface forward of the vehicle as a second light distribution pattern;
A vehicle lamp unit characterized by: The second incident portion and the second reflecting surface are arranged vertically,
The second reflective surface has an upper second reflective area and a lower second reflective area,
The upper second reflective area reflects the second reflected light below the second reflected light from the lower second reflective area.
The vehicle lamp unit according to claim 1, characterized in that: The upper second reflective area is provided above a horizontal line from the cut-off line forming portion or a horizontal line from below the cut-off line forming portion,
The lower second reflective area is provided below the horizontal line,
3. The vehicle lamp unit according to claim 2, wherein: the lower second reflective area reflects the second reflected light from the lower second reflective area to a lower edge area of the second light distribution pattern;
The upper second reflective area reflects the second reflected light from the upper second reflective area to an area above the lower edge of the second light distribution pattern.
4. The vehicle lamp unit according to claim 2, wherein: The area of the lower second reflective area is larger than the area of the upper second reflective area,
The vehicle lighting unit according to any one of claims 2 to 4, characterized in that: The first optical member is composed of a first lens,
the exit surface of the first optical member is composed of the first exit surface of the first lens,
The second optical member is
a second lens provided integrally with or separately from the first lens;
a reflector separate from the first lens and the second lens;
with
The second lens is
the second incidence section;
a second emission surface for emitting the second incident light from the second incident portion toward the reflector side outside;
has
The reflector is
Having the second reflection surface that reflects the second emission light emitted from the second emission surface to the extended incidence surface side as the second reflected light,
The vehicle lamp unit according to any one of claims 1 to 5, characterized in that: The first optical member is composed of a first lens,
the exit surface of the first optical member is composed of the first exit surface of the first lens,
The second optical member is
It is composed of a second lens provided integrally with or separately from the first lens,
the second incidence section;
the second reflecting surface that reflects the second incident light from the second incident portion as the second reflected light;
a second emission surface for emitting the second reflected light from the second reflection surface to the extended incident surface side outside;
comprising
The vehicle lamp unit according to any one of claims 1 to 5, characterized in that: The first light source and the second light source are mounted on the same plane,
The vehicle lamp unit according to any one of claims 1 to 5, characterized in that: The first light source and the first optical member, and the second light source and the second optical member are arranged in front and behind,
The first light source and the first optical member are arranged on the front side with respect to the second light source and the second optical member,
The vehicle lamp unit according to any one of claims 1 to 8, characterized in that: The second light source and the second optical member are arranged to tilt rearward and downward with respect to the first light source and the first optical member,
10. The vehicle lamp unit according to claim 9, wherein: a lamp lens and a lamp housing forming a lamp chamber;
a vehicle lamp unit according to any one of claims 1 to 10, which is arranged in the lamp chamber;
comprising
A vehicle lamp device characterized by:

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