Vehicle lighting

Abstract

To provide a vehicular lighting fixture in which optical components can be accurately attached.SOLUTION: A vehicular lighting fixture 100 comprises: a light source 11; a condenser lens member 20 in which a condenser lens 21 for condensing light emitted from the light source 11, and a condenser lens frame 23 for holding the condenser lens 21 are formed as one member; a light blocking member 30 in which a slit formation part 31 comprising a slit 33 for passing part of the light condensed by the condenser lens 21, and a light blocking frame 32 for holding the slit formation part 31 are formed as one member; a projection lens member 40 in which a projection lens 41 for forming an irradiation pattern by projecting the light passed through the slit 33, onto a road surface is formed; and a supporting member 50 for supporting the light source 11. The condenser lens member 20, the light blocking member 30, and the projection lens member 40 are fixed to the supporting member 50 in such a manner that the condenser lens frame 23 and the light blocking frame 32 overlap in the direction of an optical axis AX.SELECTED DRAWING: Figure 1

Description

Technical Field

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[0001] The present invention relates to a vehicle lamp.

Background Art

[0002] Vehicle lamps capable of irradiating a pattern on a road surface are known (for example, see Patent Document 1). In the vehicle lamp described in Patent Document 1, light from a light source is condensed by a condenser lens, the condensed light is irradiated onto a slit of a light shielding member, and the light transmitted through the slit is irradiated onto the road surface in front of the vehicle by a projection lens. In this configuration, each optical member of the condenser lens, the light shielding member, and the projection lens is supported by a support member while being held by components such as a frame and a case.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the vehicle lamp as described above, it is required to accurately attach each optical member.

[0005] The present invention has been made in view of the above, and an object thereof is to provide a vehicle lamp capable of accurately attaching optical components.

Means for Solving the Problems

[0006] The vehicle lighting device according to the present invention comprises a light source, a condensing lens member formed as a single component comprising a condensing lens for concentrating light emitted from the light source and a condensing lens frame for holding the condensing lens, a light-shielding member formed as a single component comprising a slit-forming portion having a slit for allowing a portion of the light concentrated by the condensing lens to pass through and a light-shielding frame for holding the slit-forming portion, a projection lens member formed on which a projection lens is formed to project the light that has passed through the slit onto the road surface to form an illumination pattern, and a support member for supporting the light source, wherein the condensing lens member, the light-shielding member and the projection lens member are fixed to the support member such that the condensing lens frame and the light-shielding frame overlap in the optical axis direction.

[0007] In the above-described vehicle lighting device, the condensing lens member is formed entirely from the material that constitutes the condensing lens, and the light-shielding member is formed to cover the condensing lens and the condensing lens frame of the condensing lens member when viewed from the front.

[0008] In the above-described vehicle lighting device, the projection lens member is formed as a single component comprising the projection lens and the projection lens frame that holds the projection lens, and the condensing lens member, the light-shielding member and the projection lens member are fixed to the support member such that the condensing lens frame, the light-shielding frame and the projection lens frame overlap in the direction of the optical axis.

[0009] In the above-described vehicle lighting device, the condensing lens member is positioned such that the condensing lens is located behind the condensing lens frame in the direction of the optical axis, and the projection lens member is positioned such that the projection lens is located in front of the projection lens frame in the direction of the optical axis.

[0010] In the above-described vehicle lighting device, the support member has a base portion having a support surface for supporting the light source, and a fixing portion for fixing the light-gathering lens frame, the light-shielding frame, and the projection lens frame, the fixing portion protruding from the support surface.

[0011] In the above-described vehicle lighting device, the fixing portion has an end face at its tip in the protruding direction that serves as a reference surface for fixing the condensing lens frame, the light-shielding frame, and the projection lens frame, and the end face is formed to be perpendicular to the optical axis direction. [Effects of the Invention]

[0012] According to the present invention, it is possible to provide a vehicle lighting device that allows for the precise mounting of optical components. [Brief explanation of the drawing]

[0013] [Figure 1] Figure 1 is an exploded perspective view showing an example of a vehicle lighting fixture according to this embodiment. [Figure 2] Figure 2 shows a vehicle light fixture viewed from the front. [Figure 3] Figure 3 shows the configuration along the AA section in Figure 2. [Figure 4] Figure 4 shows the configuration along the BB cross section in Figure 2. [Figure 5] Figure 5 shows an example of the operation of a vehicle lighting device. [Figure 6] Figure 6 shows an example of an illumination pattern formed on the road surface by a vehicle light fixture. [Modes for carrying out the invention]

[0014] The following describes embodiments of the vehicle lighting device according to the present invention with reference to the drawings. However, the present invention is not limited by these embodiments. Furthermore, the components in the following embodiments include those that are easily substituted or substantially identical to those that are easily substituted by those skilled in the art.

[0015] Figure 1 is an exploded perspective view showing an example of a vehicle lamp 100 according to this embodiment. Figure 2 is a diagram showing the vehicle lamp 100 as viewed from the front. Figure 3 is a diagram showing the configuration along cross-section AA in Figure 2. Figure 4 is a diagram showing the configuration along cross-section BB in Figure 2. Figure 4 shows an enlarged view of the portion fixed to the fixing part 53. As shown in Figures 1 to 4, the vehicle lamp 100 comprises a light source unit 10, a light-gathering lens member 20, a light-shielding member 30, a projection lens member 40, and a support member 50.

[0016] The light source unit 10 includes a light source 11 and a substrate 12. The light source 11 is a semiconductor type light source such as an LED. The light source 11 has a light-emitting surface 11a that emits light. The light-emitting surface 11a is positioned opposite the condensing lens 21 of the condensing lens member 20. The light source 11 emits, for example, orange (amber) light from the light-emitting surface 11a. The light sources 11 are arranged in a vertical line when mounted on a vehicle. For example, two light sources 11 are arranged. However, the arrangement and number of light sources 11 are not limited to the above. Also, the color of the light emitted from the light-emitting surface 11a is not limited to orange, but may be other colors such as white.

[0017] The substrate 12 is on which the light source 11 is mounted. Wiring, circuits, etc., for transmitting signals to the light source 11 are formed on the substrate 12. The substrate 12 is fixed to the base portion 51 of the support member 50, which will be described later.

[0018] The light - collecting lens member 20 has a light - collecting lens 21, a cylindrical portion 22, and a light - collecting lens frame 23. The light - collecting lens member 20 is formed such that the light - collecting lens 21, the cylindrical portion 22, and the light - collecting lens frame 23 are formed as one member. The light - collecting lens member 20 is entirely formed using the material that constitutes the light - collecting lens 21. The light - collecting lens 21 is formed using a material that can transmit light from the light source 11. Examples of such a material include resin materials such as polycarbonate, but other materials such as acrylic may also be used. In this case, by integrally molding using the material that constitutes the light - collecting lens 21, the entire light - collecting lens member 20 can be easily formed. Note that at least a part of the portion of the light - collecting lens member 20 that is different from the light - collecting lens 21, that is, at least a part of the cylindrical portion 22 and the light - collecting lens frame 23, may be formed using a material different from that of the light - collecting lens 21.

[0019] The light - collecting lens 21 collects the light emitted from the light source 11. As shown in FIG. 3, the light - collecting lens 21 has a first incident surface 21a, a second incident surface 21b, a reflection surface 21c, and an exit surface 21d. The first incident surface 21a is disposed in front of the light source 11. The first incident surface 21a receives the light emitted forward from the light source 11.

[0020] The second incident surface 21b is disposed along the outer periphery of the first incident surface 21a. The second incident surface 21b receives the light emitted from the light source 11 and inclined with respect to the optical axis AX. In the present embodiment, the optical - axis direction D is the direction along the optical axis AX. In the present embodiment, the optical - axis direction D is assumed to coincide with the front - rear direction.

[0021] The reflection surface 21c internally reflects the light incident from the second incident surface 21b.

[0022] The exit surface 21d emits forward the light incident from the first incident surface 21a and the light incident from the second incident surface 21b and internally reflected by the reflection surface 21c.

[0023] The cylindrical portion 22 holds the condensing lens 21. The cylindrical portion 22 is, for example, cylindrical. The cylindrical portion 22 connects the condensing lens 21 and the condensing lens frame 23. The cylindrical portion 22 is provided so as to protrude rearward (towards the light source) relative to the condensing lens frame 23. With this configuration, the condensing lens 21 is positioned rearward relative to the condensing lens frame 23.

[0024] The condensing lens frame 23 holds the condensing lens 21 via a cylindrical portion 22. The condensing lens frame 23 is flat. The condensing lens frame 23 has an annular portion 25 that protrudes vertically from the cylindrical portion 22 and a strip-shaped portion 26 that protrudes horizontally from the cylindrical portion 22. The annular portion 25 is provided in an annular shape along the outer circumference of the cylindrical portion 22. The strip-shaped portion 26 is provided linearly from the cylindrical portion 22 in the horizontal direction. The corners on both sides of the strip-shaped portion 26 in the horizontal direction are rounded. The strip-shaped portion 26 is supported by the end face 53c of the fixing portion 53 of the support member 50, which will be described later. The strip-shaped portion 26 has a positioning opening 26a and a fixing opening 26b. The positioning protrusion 53a of the support member 50, which will be described later, is inserted into the positioning opening 26a. The fixing opening 26b is inserted into the fixing member 60, which will be described later. The strip-shaped portion 26 has contact portions 26c and 26d. The contact portion 26c is positioned along the outer circumference of the positioning opening 26a and protrudes forward from the strip-shaped portion 26. The contact portion 26d is positioned along the outer circumference of the fixing opening 26b and protrudes forward from the strip-shaped portion 26. The tip surfaces of the contact portions 26c and 26d in the protruding direction are formed to be planar. The condensing lens frame 23 contacts the light-shielding member 30 at the contact portions 26c and 26d. With this configuration, the positional accuracy of the condensing lens frame 23 can be ensured by appropriately defining the dimensions such as the height of the contact portions 26c and 26d in the protruding direction of the strip-shaped portion 26.

[0025] The light-shielding member 30 has a slit-forming portion 31 and a light-shielding frame 32. The light-shielding member 30 is formed as a single flat plate with the slit-forming portion 31 and the light-shielding frame 32 as one component. The entire light-shielding member 30 is formed using a material capable of blocking light. Such materials include, for example, metal, but other materials may be used.

[0026] The slit-forming section 31 is provided, for example, in a circular shape. The slit-forming section 31 has slits 33. The slits 33 allow a portion of the light focused by the focusing lens 21 to pass through. The slits 33 are formed, for example, in a configuration of three aligned vertically. The number and arrangement of the slits 33 are not limited to the above.

[0027] The light-shielding frame 32 protrudes linearly from the slit-forming portion 31 in the left-right direction. The corners on both sides of the light-shielding frame 32 in the left-right direction are rounded. Both the front and rear surfaces of the light-shielding frame 32 are flat. The light-shielding frame 32 is supported by the contact portions 26c and 26d of the strip-shaped portion 26 of the condensing lens frame 23. By being supported by the contact portions 26c and 26d, the light-shielding frame 32 has a positioning opening 32a and a fixing opening 32b. The positioning protrusion 53a of the support member 50, which will be described later, is inserted into the positioning opening 32a. The fixing opening 32b is inserted into the fixing member 60, which will be described later.

[0028] The light-shielding member 30 is formed to cover the condensing lens 21 and the condensing lens frame 23 of the condensing lens member 20 when viewed from the front. For example, the slit forming portion 31 is positioned to correspond to the condensing lens 21 and is formed to correspond to the shape and dimensions of the condensing lens 21. The light-shielding frame 32 is positioned to correspond to the condensing lens frame 23 and is formed to correspond to the shape and dimensions of the condensing lens frame 23. In this embodiment, the light-shielding member 30 is formed so that its outer shape matches or substantially matches that of the condensing lens member 20 when viewed from the front. This configuration makes it possible to block light that has passed through the condensing lens 21 and the condensing lens frame 23 with the light-shielding member 30.

[0029] The projection lens member 40 has a projection lens 41, a cylindrical portion 42, and a projection lens frame 43. The projection lens 41 projects light that has passed through the slit 33 onto the road surface in front of the vehicle to form an illumination pattern. The projection lens member 40 is formed as a single component, with the projection lens 41, the cylindrical portion 42, and the projection lens frame 43 being the same component. The projection lens member 40 is formed entirely from a light-transmitting material. The projection lens 41 is formed from a material that can transmit light from the light source 11. Examples of such materials include resin materials such as acrylic, but other materials may be used. In this case, the entire projection lens member 40 can be easily formed by integral molding using the material that constitutes the projection lens 41. The projection lens member 40 is formed entirely from a different material than the condensing lens member 20, but it may also be formed entirely from the same material as the condensing lens member 20. In addition, the projection lens member 40 may have parts different from the projection lens 41, namely at least a part of the cylindrical portion 42 and the projection lens frame 43, made from a different material than the projection lens 41.

[0030] As shown in Figure 3, the projection lens 41 has an incident surface 41a and an exit surface 41b. Light that has passed through the slit 33 enters the incident surface 41a. The exit surface 41b emits the light that entered from the incident surface 41a forward.

[0031] The cylindrical portion 42 holds the projection lens 41. The cylindrical portion 42 is, for example, cylindrical. The cylindrical portion 42 connects the projection lens 41 and the projection lens frame 43. The cylindrical portion 42 is provided so as to protrude forward relative to the projection lens frame 43. With this configuration, the projection lens 41 is positioned in front of the projection lens frame 43.

[0032] The projection lens frame 43 holds the projection lens 41 via a cylindrical portion 42. The projection lens frame 43 is flat. The projection lens frame 43 has an annular portion 45 that protrudes vertically from the cylindrical portion 42 and a strip-shaped portion 46 that protrudes horizontally from the cylindrical portion 42. The annular portion 45 is provided in an annular shape along the outer circumference of the cylindrical portion 42. The strip-shaped portion 46 is provided linearly from the cylindrical portion 42 in the horizontal direction. The corners on both sides of the strip-shaped portion 46 in the horizontal direction are rounded. The strip-shaped portion 46 has a positioning opening 46a and a fixing opening 46b. The positioning opening 46a is into which the positioning projection 53a of the support member 50 (described later) is inserted. The fixing opening 46b is into which the fixing member 60 (described later) is inserted. The strip-shaped portion 46 has contact portions 46c and 46d. The contact portion 46c is positioned along the outer circumference of the positioning opening 46a and protrudes rearward from the strip-shaped portion 46. The contact portion 46d is positioned along the outer circumference of the fixing opening 46b and protrudes rearward from the strip-shaped portion 46. The tip surfaces of the contact portions 46c and 46d in the protruding direction are formed to be planar. The projection lens frame 43 contacts the light-shielding member 30 at the contact portions 46c and 46d. With this configuration, the positional accuracy of the projection lens frame 43 can be ensured by appropriately defining the dimensions such as the height of the contact portions 46c and 46d in the protruding direction of the strip-shaped portion 46.

[0033] The support member 50 has a base portion 51, a fin 52, and a fixing portion 53. The base portion 51 is flat. The base portion 51 has a support surface 51a that supports the light source 10. The support surface 51a is the front surface of the base portion 51 and supports the substrate 12.

[0034] The fins 52 protrude rearward from the base portion 51. Multiple fins 52 are provided. The fins 52 release the heat generated in the light source 11.

[0035] The fixing portion 53 protrudes forward from the support surface 51a of the base portion 51. The fixing portion 53 fixes the condensing lens frame 23, the light-shielding frame 32, and the projection lens frame 43. The fixing portion 53 has a positioning projection 53a and a fixing opening 53b. The positioning projection 53a and the fixing opening 53b are provided on the front end face 53c of the fixing portion 53.

[0036] The positioning projection 53a protrudes forward and penetrates in the front-rear direction through the positioning opening 26a provided in the strip-shaped portion 26 of the condensing lens frame 23, the positioning opening 32a provided in the light-shielding frame 32, and the positioning opening 46a provided in the strip-shaped portion 46 of the projection lens frame 43. The fixing opening 53b into which the fixing member 60, which will be described later, is inserted.

[0037] The end face 53c is formed, for example, in a planar shape. As shown in Figure 4, the end face 53c is formed to be perpendicular or nearly perpendicular to the optical axis AX. The condensing lens member 20 is supported on the end face 53c so that it overlaps with the optical axis direction D. In other words, the end face 53c serves as a reference surface when supporting the condensing lens member 20, the light-shielding member 30, and the projection lens member 40. Because this reference surface end face 53c is formed to be perpendicular or nearly perpendicular to the optical axis AX, the condensing lens member 20, the light-shielding member 30, and the projection lens member 40 can be appropriately positioned along the optical axis AX.

[0038] The fixing member 60 fixes the condensing lens frame 23, the light-shielding frame 32, and the projection lens frame 43 to the fixing part 53. The fixing member 60 is fastened using fasteners such as screws. The fixing member 60 penetrates the fixing opening 26b provided in the strip-shaped portion 26 of the condensing lens frame 23, the fixing opening 32b provided in the light-shielding frame 32, and the fixing opening 46b provided in the strip-shaped portion 46 of the projection lens frame 43, and is inserted into the fixing opening 53b of the fixing part 53.

[0039] Next, an example of the operation of the vehicle lighting device 100 configured as described above will be explained. Figure 5 shows an example of the operation of the vehicle lighting device 100. When a predetermined operation is performed by the driver, such as operating the vehicle's turn signal or hazard switch, the vehicle lighting device 100 emits light from the light-emitting surface 11a of the light source 11 in response to the operation.

[0040] A portion of the light L emitted from the light-emitting surface 11a enters the first incident surface 21a and the second incident surface 21b of the condensing lens 21. Of these, the light L1 that enters the first incident surface 21a travels through the inside of the condensing lens 21 and is emitted forward from the exit surface 21d. The light L2 that enters the second incident surface 21b is reflected forward by the reflective surface 21c and is emitted forward from the exit surface 21d. In addition, a portion of the light L emitted from the light-emitting surface 11a enters the cylindrical portion 22 or the condensing lens frame 23. The light L3 that enters the cylindrical portion 22 or the condensing lens frame 23 passes through the cylindrical portion 22 and the condensing lens frame 23 and is emitted forward.

[0041] Light L1 and L2 emitted forward from the emission surface 21d, and light L3 emitted forward from the cylindrical portion 22 or the condensing lens frame 23, reach the slit-forming portion 31 of the light-shielding member 30. A portion of the light L1 and L2 that reaches the slit-forming portion 31 passes through the slit 33 of the light-shielding member 30, and the remainder is shielded by the light-shielding member 30. Light L3 also reaches the light-shielding frame 32 of the light-shielding member 30 and is shielded by the light-shielding frame 32. In this embodiment, the outer shapes of the condensing lens member 20 and the light-shielding member 30 overlap when viewed from the optical axis direction D. Therefore, the portion of the condensing lens member 20 other than the condensing lens 21, i.e., the light L3 emitted forward from the cylindrical portion 22 or the condensing lens frame 23, is shielded by the light-shielding member 30. Thus, the generation of glare can be prevented.

[0042] Light L1 and L2 that pass through the slit 33 enter the incident surface 41a of the projection lens 41 and are emitted from the exit surface 41b in front of the vehicle. Figure 6 shows an example of an illumination pattern formed on the road surface by the vehicle light fixture 100. As shown in Figure 6, the light L1 and L2 emitted in front of the vehicle form an illumination pattern P on the road surface in front of the vehicle.

[0043] As described above, the vehicle lighting device 100 according to this embodiment comprises a light source 11, a condensing lens member 20 formed as a single component comprising a condensing lens 21 that concentrates light emitted from the light source 11 and a condensing lens frame 23 that holds the condensing lens 21, a light-shielding member 30 formed as a single component comprising a slit-forming portion 31 having a slit 33 that allows a portion of the light concentrated by the condensing lens 21 to pass through and a light-shielding frame 32 that holds the slit-forming portion 31, a projection lens member 40 formed on which a projection lens 41 is formed that projects the light that has passed through the slit 33 onto the road surface to form an illumination pattern P, and a support member 50 that supports the light source 11. The condensing lens member 20, the light-shielding member 30, and the projection lens member 40 are fixed to the support member 50 such that the condensing lens frame 23 and the light-shielding frame 32 overlap in the optical axis direction D.

[0044] With this configuration, the condensing lens frame 23 and the light-shielding frame 32 are fixed to the support member 50 so that they overlap in the optical axis direction D, thus reducing the number of parts required to fix each optical component, the condensing lens member 20, the light-shielding member 30, and the projection lens member 40. By reducing the number of parts required for fixing, each optical component can be mounted with high precision.

[0045] In the vehicle lighting device 100 according to this embodiment, the condensing lens member 20 is formed entirely of a light-transmitting material, and the light-shielding member 30 is formed to cover the condensing lens 21 and the condensing lens frame 23 of the condensing lens member 20 when viewed from the front. With this configuration, the entire condensing lens member 20 can be formed using the same material that constitutes the light-transmitting lens portion. Therefore, the condensing lens member 20 can be formed easily and at low cost. Furthermore, in this configuration, even if light from the light source 11 passes through the portion of the condensing lens member 20 other than the condensing lens 21, the light can be shielded by the light-shielding member 30. Thus, the generation of glare can be prevented.

[0046] In the vehicle lighting device 100 according to this embodiment, the projection lens member 40 is formed as a single component comprising a projection lens 41 and a projection lens frame 43 that holds the projection lens 41. The condensing lens member 20, the light-shielding member 30, and the projection lens member 40 are fixed to the support member 50 such that the condensing lens frame 23, the light-shielding frame 32, and the projection lens frame 43 overlap in the optical axis direction D. With this configuration, in addition to the condensing lens frame 23 and the light-shielding frame 32, the projection lens frame 43 is also fixed to the support member 50 so as to overlap in the optical axis direction D, allowing each optical component to be mounted with high precision.

[0047] In the vehicle lighting device 100 according to this embodiment, the condensing lens member 20 has a condensing lens 21 positioned behind the condensing lens frame 23 in the direction of the optical axis, and the projection lens member 40 has a projection lens 41 positioned in front of the projection lens frame 43 in the direction of the optical axis. This configuration allows for efficient arrangement of the condensing lens 21 and the projection lens 41.

[0048] In the vehicle lighting device 100 according to this embodiment, the support member 50 has a base portion 51 having a support surface 51a for supporting the light source 11, and a fixing portion 53 for fixing the condensing lens frame 23, the light shielding frame 32, and the projection lens frame 43, with the fixing portion 53 protruding from the support surface 51a. With this configuration, sufficient space for arranging the condensing lens 21 can be secured in the support member 50.

[0049] In the vehicle lighting device 100 according to this embodiment, the fixing portion 53 has an end face 53c at its tip in the protruding direction, which serves as a reference surface for fixing the condensing lens frame 23, the light-shielding frame 32, and the projection lens frame 43, and the end face 53c is formed to be perpendicular to the optical axis AX. With this configuration, the condensing lens member 20, the light-shielding member 30, and the projection lens member 40 can be appropriately arranged along the optical axis AX.

[0050] The technical scope of the present invention is not limited to the embodiments described above, and modifications can be made as appropriate without departing from the spirit of the invention. For example, in the embodiments described above, a configuration in which the entire condensing lens member 20 is formed using a light-transmitting material was given as an example, but the invention is not limited thereto. The condensing lens member 20 may be configured such that at least the condensing lens 21 is formed using a light-transmitting material, and the cylindrical portion 22 and the condensing lens frame 23 may be made of a material that does not transmit light.

[0051] Similarly, in the above embodiment, a configuration in which the entire projection lens member 40 is formed using a light-transmitting material was described as an example, but the invention is not limited to this. The projection lens member 40 only needs to have a configuration in which at least the projection lens 41 is formed using a light-transmitting material, and the cylindrical portion 42 and the projection lens frame 43 may be made of a light-impermeable material.

[0052] Furthermore, in the above embodiment, the configuration described as an example in which the condensing lens 21 is positioned behind the condensing lens frame 23 in the optical axis direction in the condensing lens member 20, and the projection lens 41 is positioned in front of the projection lens frame 43 in the optical axis direction in the projection lens member 40, is not limited to this configuration. For example, the thicknesses of the condensing lens frame 23 and the projection lens frame 43 may be the same as those of the condensing lens 21 and projection lens 41, respectively.

[0053] Furthermore, although the above embodiment described an example in which the fixing portion 53 of the support member 50 protrudes from the support surface 51a, the invention is not limited to this. For example, the condensing lens frame 23 may protrude toward the support surface 51a.

[0054] Furthermore, although the above embodiment was described using a configuration in which the vehicle light 100 is positioned at the front of the vehicle M as an example, the invention is not limited to this configuration. The vehicle light 100 may be positioned at the rear or side of the vehicle M, and may form an illumination pattern on the road surface behind or to the side of the vehicle M. [Explanation of symbols]

[0055] AX...Optical axis, D...Optical axis direction, L, L1, L2, L3...Light, M...Vehicle, P...Irradiation pattern, 10...Light source unit, 11...Light source, 11a...Emitting surface, 12...Substrate, 20...Concentrating lens member, 21...Concentrating lens, 21a...First incident surface, 21b...Second incident surface, 21c...Reflecting surface, 21d, 41b...Emitting surface, 22, 42...Cylindrical part, 23...Concentrating lens frame, 25, 45...Annular part, 26, 46...Strip-shaped part, 26a, 32a, 46a...Positioning opening, 26 b, 32b, 46b, 53b... Fixing opening, 26c, 26d, 46c, 46d... Contact part, 30... Light-shielding member, 31... Slit forming part, 32... Light-shielding frame, 33... Slit, 40... Projection lens member, 41... Projection lens, 41a... Incident surface, 43... Projection lens frame, 50... Support member, 51... Base part, 51a... Support surface, 52... Fin, 53... Fixing part, 53a... Positioning projection, 53c... End face, 60... Fixing member, 100... Vehicle light fixture

Claims

1. Light source and A condensing lens member is formed as a single component, comprising a condensing lens that focuses light emitted from the light source and a condensing lens frame that holds the condensing lens. A light-shielding member is formed as a single component comprising a slit-forming portion having a slit that allows a portion of the light focused by the light-gathering lens to pass through, and a light-shielding frame that holds the slit-forming portion. A projection lens member having a projection lens formed thereon that projects the light that has passed through the slit onto the road surface to form an irradiation pattern, Support member for supporting the light source and Equipped with, The condensing lens member, the light-shielding member, and the projection lens member are fixed to the support member such that the condensing lens frame and the light-shielding frame overlap in the optical axis direction. The condensing lens member is formed entirely using the material that constitutes the condensing lens. The light-shielding member is formed to cover the condensing lens and the condensing lens frame of the condensing lens member when viewed from the front. Vehicle lighting fixtures.

2. A light source, A condensing lens member is formed as a single component, comprising a condensing lens that focuses light emitted from the light source and a condensing lens frame that holds the condensing lens. A light-shielding member is formed as a single component comprising a slit-forming portion having a slit that allows a portion of the light focused by the light-gathering lens to pass through, and a light-shielding frame that holds the slit-forming portion. A projection lens member having a projection lens formed thereon that projects the light that has passed through the slit onto the road surface to form an irradiation pattern, Support member for supporting the light source and Equipped with, The condensing lens member, the light-shielding member, and the projection lens member are fixed to the support member such that the condensing lens frame and the light-shielding frame overlap in the optical axis direction. The projection lens member is formed such that the projection lens and the projection lens frame that holds the projection lens are formed as a single component. The condensing lens member, the light-shielding member, and the projection lens member are fixed to the support member such that the condensing lens frame, the light-shielding frame, and the projection lens frame overlap in the direction of the optical axis. Vehicle lighting fixtures.

3. The condensing lens member is positioned such that the condensing lens is located behind the condensing lens frame in the direction of the optical axis. The projection lens member is positioned such that the projection lens is located in front of the projection lens frame in the direction of the optical axis. The vehicle light fixture according to claim 2.

4. The support member comprises a base portion having a support surface for supporting the light source, and a fixing portion for fixing the light-gathering lens frame, the light-shielding frame, and the projection lens frame. The fixing portion protrudes from the support surface. The vehicle light fixture according to claim 3.

5. The fixing portion has an end face that serves as a reference surface for fixing the light-gathering lens frame, the light-shielding frame, and the projection lens frame, with the end face provided at the tip in the protruding direction. The end face is formed to be perpendicular to the optical axis direction. The vehicle light fixture according to claim 4.

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