Vehicular lighting fixtures and single lens that vehicular lighting fixtures comprise
The vehicle lamp design with diffused light surfaces and optical elements addresses the appearance issue of partial unlit areas in single lens lamps, ensuring all sections are visibly lit, thus reducing mistaken malfunctions.
Patent Information
- Application Number
- JP2024040312
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-03-14
- Publication Date
- 2025-09-29
AI Technical Summary
In vehicle lamps with a single lens having multiple light distribution portions, the partial unlit areas when only one lamp unit is activated can lead to a mistaken belief of malfunction, affecting the appearance.
A vehicle lamp design with a single lens featuring a first and second light source, where the second light distribution section's entrance or exit surface is treated to diffuse light, and an optical element directs light towards the second light distribution section, optionally with a reflecting section to enhance illumination.
The design improves the appearance of the lamp when lit by ensuring all light distribution portions appear illuminated, reducing the likelihood of mistaken malfunctions.
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Figure 2025140747000001_ABST
Abstract
Description
[Technical Field]
[0001] The present invention relates to a vehicle lamp including a single lens having a plurality of light distribution portions, and to the single lens. [Background technology]
[0002] In vehicle lighting fixtures that have two or more lamp units, such as a high beam lamp unit and a low beam lamp unit, in order to avoid the lamp unit becoming larger, the lenses of the multiple lamp units may be shared and only a single lens may be used (for example, Patent Document 1).
[0003] Patent document 1 has two lamp units, a first lamp unit and a second lamp unit, and a single lens shared by both lamp units, and the single lens has both a first light distribution section used for the first lamp unit and a second light distribution section used for the second lamp unit. [Prior art documents] [Patent documents]
[0004] [Patent Document 1] Patent Publication No. 2017-91876 Summary of the Invention [Problem to be solved by the invention]
[0005] However, in a vehicle lamp having the above configuration, when only the first lamp unit is used, only the first light distribution portion of the lens appears to be lit, and the second light distribution portion appears to be unlit. This can lead to the mistaken belief that a malfunction (non-lighting failure) exists, even though there is no malfunction. When multiple lamp units each have a lens, the problem of appearing to be a non-lighting failure does not occur, because each lens is lit / unlit across its entire area. In other words, with a single lens having multiple light distribution portions like this, when only one lamp unit is lit, a partial area of the lens appears unlit, which causes an appearance problem when the lamp is lit.
[0006] The present invention has been made in view of the above, and provides a vehicle lamp that improves the appearance when lit in a single lens having a plurality of light distribution portions. [Means for solving the problem]
[0007] In order to solve the above problems, in a first aspect, a vehicle lamp is configured to include a single lens having a first light source, a second light source, a first light distribution section that mainly receives light emitted from the first light source and forms it into a first light distribution before emitting it, and a second light distribution section that mainly receives light emitted from the second light source and forms it into a second light distribution before emitting it, wherein the first light source is used alone or in cooperation with the second light source, and the entrance surface or exit surface of the second light distribution section is treated with a surface treatment that diffuses light.
[0008] In addition, as a second aspect, the first aspect is configured to have an optical element that receives a portion of the light emitted from the first light source, and the optical element is configured to emit the incident light mainly toward the second light distribution section.
[0009] As a third aspect, in the first or second aspect, the first light distribution section is configured to have a reflecting section that reflects a portion of the incident light toward the exit surface of the second light distribution section.
[0010] As a fourth aspect, in any one of the first to third aspects, the first light distribution is a low beam light distribution, and the second light distribution is a high beam light distribution. As a fifth aspect, in any one of the first to fourth aspects, the lens is provided with three or more of the first light distribution portions and the second light distribution portions alternately.
[0011] In one aspect of the present disclosure, a single lens is configured to have a first light distribution section that receives light irradiated mainly by a first light source and emits it as a first light distribution, and a second light distribution section that receives light irradiated mainly by a second light source and emits it as a second light distribution, and the entire light entrance surface or light exit surface of either the first light distribution section or the second light distribution section is surface-treated to diffuse light. [Effects of the Invention]
[0012] As is clear from the above description, it is possible to provide a vehicle lamp that improves the appearance when lit in a single lens having a plurality of light distribution portions. [Brief explanation of the drawings]
[0013] [Figure 1] 1 is a front view illustrating a schematic configuration of a lens and a vehicle lamp according to the present invention. [Figure 2] FIG. 2 is a horizontal end view taken along line II-II of FIG. [Figure 3] 10A and 10B are explanatory diagrams illustrating the effects of a vehicle lamp. [Figure 4] 1 shows a first modified example, corresponding to FIG. [Figure 5] A second modified example is shown in FIG. [Figure 6] A third modified example is shown in FIG. 2. [Figure 7] A fourth modified example is shown in FIG. 2. [Figure 8] 10 is a front view of a lamp showing a fifth modified example, corresponding to FIG. [Figure 9] FIG. 9 is a vertical end view taken along line IX-IX in FIG. 8. DETAILED DESCRIPTION OF THE INVENTION
[0014] Specific embodiments of the present invention will be described below with reference to the drawings. The embodiments are merely examples and do not limit the invention, and all features and combinations thereof described in the embodiments are not necessarily essential to the invention. Furthermore, in the following description of the embodiments and modifications, identical components are denoted by the same reference numerals, and redundant description will be omitted as appropriate. In each drawing, dimensions and ratios do not reflect actual values but are used to schematically represent the components. Coloring in the drawings does not reflect the actual colors, but is used to facilitate understanding for the explanation of the conditions. The left and right directions in the drawings refer to the top and bottom of the vehicle as viewed from the driver in the driver's seat, the front and rear of the vehicle, and the left and right of the vehicle (vehicle width direction).
[0015] (Embodiment) Fig. 1 is a front view showing a schematic configuration of a vehicle lamp 1 according to a preferred embodiment of the present disclosure, Fig. 2 is an end view taken along line II-II in Fig. 1.
[0016] The vehicle lamps 1 are a pair of vehicle lamps arranged on the left and right at the front end of the vehicle, and are headlights that form a high beam light distribution and a low beam light distribution. The pair of vehicle lamps 1 are configured symmetrically in the vehicle width direction. Therefore, in the following explanation, only the vehicle lamp on the right side will be explained, and an explanation of the vehicle lamp on the left side will be omitted.
[0017] The vehicle lamp 1 comprises a lamp housing, which is made up of a lamp body 2 and a lamp cover 4. The lamp body 2 is a housing that is open at the front, and the lamp cover 4 is attached to the opening of the lamp body 2 to form a lamp chamber S inside. The lamp cover 4 is a so-called outer cover (outer lens), and is a nearly transparent lens made of a transparent resin that transmits light, such as polycarbonate.
[0018] A low beam lamp unit LO and a high beam lamp unit HI are housed within the lamp chamber S and supported by a support member (not shown). Each lamp unit LO, HI is an optical unit configured to form a predetermined light distribution, such as a low beam light distribution or a high beam light distribution, in front of the vehicle, either alone or in cooperation. In the vehicle lamp 1, a low beam light distribution is formed by the low beam lamp unit LO alone, and a high beam light distribution is formed by the low beam lamp unit LO and the high beam lamp unit HI in cooperation.
[0019] The two lamp units are arranged side by side in the vehicle width direction, with the low beam lamp unit LO being arranged on the outer side in the vehicle width direction and the high beam lamp unit HI being arranged on the inner side in the vehicle width direction. The low beam lamp unit LO and the high beam lamp unit HI share a single projection lens 30.
[0020] 2, the low beam lamp unit LO includes a first light source 11, a first reflector 12, and a projection lens 30. Similarly, the high beam lamp unit HI includes a second light source 21, a second reflector 22, and a shared projection lens 30.
[0021] The first reflector 12 and the second reflector 22 each have a reflective inner surface and are configured to guide light emitted from the light sources 11, 21 to a predetermined area of the projection lens 30. The first reflector 12 and the second reflector 22 are connected at their ends to form an integrated unit. The first reflector 12 and the second reflector 22 may also be configured as separate bodies rather than being integrated. Furthermore, the optical member that guides the light emitted from the light sources to the projection lens 30 is not limited to a reflector, and other conventional optical members such as an inner lens or a step reflector may also be used.
[0022] (Projection lens 30) The projection lens 30 is a free-form lens with a rectangular outer shape, with opposing entrance and exit surfaces both having free-form shapes. Functionally and geometrically, the projection lens 30 is divided into two parts, a first light distribution section 31 on the right side and a second light distribution section 32 on the left side, with the center of the vehicle width as the boundary 39.
[0023] The projection lens 30 is an integrated configuration in which the projection lenses of two lamp units LO and HI are lined up in the left-right direction, and is composed of light distribution sections 31 and 32 that form a plurality of different light distributions. The first light distribution section 31 is used for the low beam lamp unit LO, and mainly receives light L1 emitted from the first light source 11 to form and irradiate a low beam distribution. The second light distribution section 32 is used for the high beam lamp unit HI, and mainly receives light L2 emitted from the second light source 21 to form and irradiate a high beam distribution.
[0024] The first light distribution section 31 and the second light distribution section 32 have incident surfaces 31a and 32a and exit surfaces 31b and 32b, respectively. The incident surfaces 31a and 32a are formed by curved surfaces with different curvatures connected at the center. Therefore, the light distribution sections 31 and 32 have different rear focal points F1 and F2, respectively. The rear side of the boundary 39 is an intersection line where the curved surfaces with different curvatures intersect, separating the two curved surfaces.
[0025] The surface of the incident surface 32a of the second light distribution portion 32 is textured as a surface treatment for diffusing light. By textured in this way on one of the incident surfaces or the reflecting surface of the projection lens 30, which is a single lens having multiple light distribution portions, the appearance of the vehicle lamp 1 when lit is improved (described in detail later).
[0026] The exit surfaces 31b and 32b are curved surfaces with the same curvature at their ends, and are smoothly connected at boundary 39. The exit surface of the projection lens 30 is not limited to the above, and may be configured by connecting curved surfaces with different curvatures, similar to the entrance surface, depending on the light distribution to be formed.
[0027] The first light distribution section 31 is disposed in front of the first light source 11 and the first reflector 12. Light L1 emitted from the first light source 11 is reflected by the inner surface of the first reflector 12 and condensed at F1, which is the rear focal point of the first light distribution section 31. The light is partially blocked by a shade (not shown), forming a predetermined cut-off line. Next, the light L1 is mainly incident on the first incident surface 31a of the first light distribution section 31 of the front projection lens 30, emitted from the first exit surface 31b, passes through the lamp cover 4, and is irradiated in front of the vehicle as a low-beam light distribution.
[0028] Similarly, the second light distribution section 32 is disposed in front of the second light source 21 and the second reflector 22. Light L2 emitted from the second light source 21 is reflected by the inner surface of the second reflector 22 and condensed at F2, which is the rear focal point of the second light distribution section 32. Light L2 then mainly enters the second incident surface 32a of the second light distribution section 32 of the front projection lens 30, exits from the second exit surface 32b, passes through the lamp cover 4, and is irradiated, and together with similarly irradiated light L1, forms a high beam light distribution ahead of the vehicle.
[0029] The configuration of the lamp unit is not limited to the above, and any type may be used, such as a direct projection type or a projector type. The lamp unit may also be a lamp unit that can form a variable light distribution using an MEMS mirror or a matrix light source.
[0030] (Action and effect) The effect of the vehicular lamp 1 will be explained using Fig. 3. Fig. 3 is an explanatory diagram illustrating the appearance of the vehicular lamp when the vehicular lamp forms a low beam light distribution. Fig. 3 shows the lit state of a conventional vehicular lamp 901. Fig. 3(B) shows the lit state of the vehicular lamp 1.
[0031] The conventional vehicle lamp 901 has the same configuration as the vehicle lamp 1, except that the incident surface 932a of the second light distribution portion 932 of the projection lens 930 is not textured.
[0032] In the vehicle lamp 1,901, when forming a low beam light distribution, only the low beam lamp unit is used and the high beam lamp unit is not used. Specifically, only the light source of the low beam lamp unit is turned on, and the light source of the high beam lamp unit is turned off.
[0033] 3(A), when a conventional vehicle lamp 901 forms a low beam light distribution, only a first light distribution section 931 that forms a low beam light distribution becomes bright in a conventional projection lens 930, and a second light distribution section 932 that forms a high beam light distribution becomes dark. Because some areas within the single projection lens 930 become dark, this appears to be turned off, and a person who sees the vehicle lamp 901 forming a low beam light distribution will perceive the vehicle lamp 901 as having a malfunction.
[0034] 3(B), when the vehicle lamp 1 forms a low-beam light distribution, in the projection lens 30, the light L1 emitted from the first light source 11 is mainly incident on the first light distribution portion 31 of the projection lens 30, and some of the light enters the second light distribution portion 32 and is diffused by the textured second entrance surface 32a before being emitted. As a result, the second light distribution portion 32 also shines brightly, appearing to be lit. Therefore, people who see the vehicle lamp 1 forming a low-beam light distribution are less likely to mistakenly believe that the lamp is malfunctioning.
[0035] Because the first light distribution section 31 and the second light distribution section 32 are integrated into a single projection lens 30, the two light distribution sections 31, 32 are made of the same material and are continuous. Light L1 emitted from the first light source 11 primarily enters the first light distribution section 31, which is located in the front, but a small amount enters or is reflected into the second light distribution section 32. The light that enters the second light distribution section 32 is diffused and reflected by the second incident surface 32a, which is roughened by a textured finish. This diffused light can illuminate the entire second incident surface 32a. When the vehicle lamp 1 is viewed from the front, the light is visible, making the second light distribution section 32 appear to be illuminated, just like the first light distribution section 31.
[0036] In this way, the vehicular lamp 1 can improve the appearance of the lamp when turned on, particularly when forming a low beam light distribution, compared to the conventional vehicular lamp 901. Furthermore, it can also reduce the likelihood of the lamp being mistaken for a non-lighting failure when forming a low beam light distribution compared to conventional vehicular lamps.
[0037] (Variation 1) 4 shows a modified vehicle lamp 1A, which corresponds to FIG.
[0038] The vehicle lamp 1A has the same configuration as the vehicle lamp 1, except that a reflector 40A that reflects light inside the lamp chamber S is added.
[0039] The reflector 40A has a reflective surface on its surface and is positioned near the end of the first light distribution section 31 of the projection lens 30 opposite the end that connects to the second light distribution section 32, and is configured to receive a portion of the light L1 emitted from the first light source 11 and reflect it to the second light distribution section 32.
[0040] As described above, by making a portion of the light L1 emitted from the first light source 11 incident on the second light distribution section 32, the light is diffused on the surface of the second incident surface 32a, which has been textured, causing the second incident surface 32a to shine.
[0041] Light L1 from first light source 11 is mainly incident on first light distribution section 31 disposed in front, and only a small amount of light enters second light distribution section 32. By providing reflector 40A configured to reflect incident light L1 to second light distribution section 32, light L1 emitted from first light source 11 can be reliably incident on second light distribution section 32 and illuminate second incident surface 32a. Furthermore, the amount of light incident on second light distribution section 32 can be adjusted by adjusting the angle and size of reflector 40A, and the brightness of the illumination of second incident surface 32a can be adjusted.
[0042] The reflector 40A may be of any shape as long as it has the optical property of reflecting light, and may be a flat plate, a curved plate, or a reflector. It is preferable for the reflector 40A to be supported by a holder (not shown) that holds the projection lens 30, as this facilitates installation. It may also be disposed near the end of the first reflector 12. A portion of the inner reflective surface of the first reflector 12 may be given the function of the reflector 40A.
[0043] (Variation 2) 5 shows a vehicle lamp 1B which is another modified example. FIG. 5 corresponds to FIG.
[0044] The vehicular lamp 1B has the same configuration as the vehicular lamp 1, except that a projection lens 30B is disposed in place of the projection lens 30.
[0045] The projection lens 30B has the same configuration as the projection lens 30, except that a reflecting portion 38B that guides incident light to the second light distribution portion 32 is formed on a part of the first light distribution portion 31, such as the peripheral end surface of the first light distribution portion 31.
[0046] A portion of the light incident on the first light distribution section 31 is reflected by the reflecting section 38B to the second light distribution section 32. By making a portion of the light L1 emitted from the first light source 11 incident on the second light distribution section 32, the light can be diffused on the textured surface of the second incident surface 32a, causing the second incident surface 32a to shine.
[0047] By providing a reflecting portion 38B in a part of the projection lens 30B, it is possible to reliably cause the light L1 emitted from the first light source 11 to enter the second light distribution portion 32 and illuminate the second incident surface 32a. Furthermore, the area and forming angle of the reflecting portion 38B can adjust the amount of light incident on the second light distribution portion 32, and the brightness of the illumination of the second incident surface 32a can be adjusted. There is no need to provide a separate reflecting plate to guide part of the light L1 emitted from the first light source 11 to the second light distribution portion 32, which reduces production costs and assembly labor costs.
[0048] (Variation 3) 6 shows a vehicle lamp 1C which is yet another modified example. FIG. 6 corresponds to FIG.
[0049] The vehicular lamp 1C has the same configuration as the vehicular lamp 1, except that a projection lens 30C is disposed in place of the projection lens 30.
[0050] The projection lens 30C has the same configuration as the projection lens 30, except that the second light distribution section 32 has an exit surface 32bC that is textured, rather than an entrance surface 32aC.
[0051] A part of the light L1 emitted from the first light source 11 enters the second light distribution section 32, is diffused by the textured surface of the second emission surface 32bC, and is emitted from the second incidence surface 32aC. As a result, even when only the first light source 11 is turned on and the second light source 21 is turned off, not only the first light distribution section 31 but also the second light distribution section 32 can be illuminated, and the entire projection lens 30 can be made to appear as if it is lit.
[0052] In this way, the surface to be textured is not limited to the incident surface 32aC of the second light distribution portion 32, but may also be the exit surface 32bC of the second light distribution portion 32.
[0053] (Variation 4) 7 shows a vehicle lamp 1D which is yet another modified example. FIG. 7 corresponds to FIG.
[0054] In addition to the low beam lamp unit LO, the vehicle lamp 1D further includes a low beam lamp unit LOD having the same configuration as the low beam lamp unit LO.
[0055] The two low beam lamp units LO and LOD cooperate to form a low beam light distribution and irradiate the area ahead of the vehicle.
[0056] The high beam lamp unit HI cooperates with the two low beam lamp units LO and LOD to form a high beam light distribution and irradiate the area ahead of the vehicle.
[0057] The three lamp units are arranged in the lamp chamber S in the vehicle width direction (left and right direction) in the order of low beam lamp unit LO, high beam lamp unit HI, and low beam lamp unit LOD, starting from the outside in the vehicle width direction.
[0058] Each of the three lamp units includes a light source and a reflector, and further includes a single shared projection lens 30D.
[0059] The projection lens 30D has a rectangular outer shape, and is configured such that projection lenses for three lamp units are aligned in the left-right direction and integrated together, and has three light distribution sections 31, 32, and 31D.
[0060] The projection lens 30 is divided into three parts, a first light distribution section 31, a second light distribution section 32, and a third light distribution section 31D, in terms of function and shape, with boundaries 39 and 39D being the two boundaries when the projection lens 30 is divided into approximately three equal parts in the vehicle width direction.
[0061] Each light distribution section 31, 32, 31D has an incident surface 31a, 32a, 31aD and an exit surface 31b, 32b, 32bD, respectively. Each incident surface 31a, 32a, 31aD is formed by connecting curved surfaces with different curvatures at their ends in the vehicle width direction. Therefore, each light distribution section 31, 32, 31D has a different rear focal point F1, F2, F1D, respectively.
[0062] Similar to the vehicle lamp 1, the first light distribution portion 31 of the projection lens 30D is disposed in front of the first light source 11 and the first reflector 12. Light L1 emitted from the first light source 11 is condensed by the reflector 12 at a rear focal point F1, and then enters mainly the first light distribution portion 31 of the forward projection lens 30, and is irradiated in front of the vehicle.
[0063] The third light distribution section 31D is disposed in front of the third light source 11D and the third reflector 12D. The light L1D emitted from the third light source 11D is condensed by the third reflector 12D at a rear focal point F1D, and then enters the third light distribution section 31D of the front projection lens 30 mainly to be irradiated forward of the vehicle, and together with the light L1 emitted from the first light distribution section 31D, forms a low beam light distribution.
[0064] The second light distribution section 32 of the projection lens 30D is disposed in front of the second light source 21 and the second reflector 22. Light L2 emitted from the second light source 21 is condensed by the reflector 22 to a rear focal point F2, and then enters mainly the second light distribution section 32 of the forward projection lens 30 and is irradiated forward of the vehicle, where, together with light L1 emitted from the first light distribution section 31 and light LD emitted from the third light distribution section 33, it forms a high beam light distribution.
[0065] The texture is applied only to the surface of the incident surface 32a of the second light distribution portion 32. When the vehicle lamp 1D forms a low beam light distribution, the first light source 11 and the third light source 11D are turned on, and the second light source 21 is turned off. A portion of the light emitted from the first light source 11 or the third light source 11D enters the second light distribution portion 32 and is diffused by the textured surface of the second exit surface 32b, causing the second exit surface 32b to emit light.
[0066] As a result, even when only the first light source 11 and the third light source 11D are turned on and the second light source 21 is turned off, not only the first light distribution section 31 and the third light distribution section 31D but also the second light distribution section 32 can be illuminated, and the entire projection lens 30 can be made to appear as if it is lit.
[0067] In a projection lens having multiple light distribution sections, such as the projection lens 30D, the number of light distribution sections provided is not limited to two and may be three or more, and preferably, the first light distribution section and the second light distribution section are provided alternately, and it is even more preferable that the second light distribution section is positioned in the center.
[0068] (Variation 5) Figures 8 and 9 show a vehicle lamp 1E which is yet another modified example. Figure 8 corresponds to Figure 1. Figure 9 is an end view taken along line IX-IX in Figure 8.
[0069] In the vehicle lamp 1E, two lamp units each having a single shared projection lens 30E are arranged in a vertical direction.
[0070] The vehicle lamp 1E is a combination lamp that houses four lamps in a lamp chamber S: a low beam lamp unit LO, a high beam lamp unit HI, a cornering lamp unit CO, and a daytime running lamp unit DRL.
[0071] A low beam lamp unit LO is disposed on the outer side in the vehicle width direction, and a high beam lamp unit HI is disposed on the inner side in the vehicle width direction in the lower part of the lamp chamber S. Furthermore, a cornering lamp unit CO is disposed above the low beam lamp unit LO, and a daytime running lamp unit DRL is disposed above the high beam lamp unit HI.
[0072] In this embodiment, the high beam lamp unit HI and the daylight running lamp unit DRL each have a separate projection lens. All lamp units may use optical units with conventionally known configurations, and detailed description thereof will be omitted.
[0073] The low beam lamp unit LO and the cornering lamp unit CO each have a light source 11, 21E, and are provided with a single shared projection lens 30E.
[0074] The projection lens 30E has light distribution sections 31 and 32E that form a predetermined light distribution from incident light. The first light distribution section 31 mainly receives light L1 emitted from the light source 11 of the low beam lamp unit LO, forms a low beam light distribution, and emits the light. The second light distribution section 32E mainly receives light L2E emitted from the light source 21E of the cornering lamp unit CO, forms a predetermined light distribution as a cornering lamp, and emits the light.
[0075] The low beam lamp unit LO and the cornering lamp unit CO are arranged side by side in the vertical direction, so that the vertical center of the projection lens 30E is the boundary 39E, with the lower part being the first light distribution section 31 and the upper part being the second light distribution section 32E.
[0076] The entrance surface 32aE of the second light distribution portion 32E is textured. The entrance surface 32aE is roughened. When the vehicle lamp 1E forms a low-beam light distribution, light L1 emitted from the light source 11 of the low-beam lamp unit LO mainly enters the first light distribution portion 31 of the projection lens 30, while a portion of the light enters the second light distribution portion 32E and is diffused by the textured second entrance surface 32a. Therefore, when the vehicle lamp 1E emits a low-beam light distribution, the second light distribution portion 32E of the projection lens 30E also shines brightly and appears to be lit. This improves the appearance of the vehicle lamp 1E when lit, especially when the low beam is on, and reduces the chance that someone seeing the vehicle lamp 1E emitting a low-beam light distribution will mistakenly believe that the lamp is malfunctioning.
[0077] In this way, the configuration of the present application can be applied to applications other than a single projection lens shared by a high beam lamp unit and a low beam lamp unit. Therefore, vehicle lamps that house the projection lens of the present application are not limited to headlights, but can also be used in rear lamps that house multiple lamp units, other combination lamps, marker lamps, etc.
[0078] Furthermore, the projection lens of the present invention can be applied to a vehicle lamp 1E in which a plurality of lamp units are arranged not only horizontally but also vertically.
[0079] The above describes preferred embodiments and modifications of the present invention, but the above-described forms are merely examples of the present invention, and these can be combined based on the knowledge of those skilled in the art, and such forms are also included in the scope of the present invention. [Explanation of symbols]
[0080] 1,1A,1B,1C,1D,1E: Vehicle lights 11: 1st light source 21:Second light source 30, 30B, 30C, 30D, 30E: Projection lens (lens) 31: First light distribution section 32, 32C, 32E: Second light distribution section 32a: (Second light distribution section) incident surface 32b: (second light distribution section) exit surface 38E:Reflector 40A: Reflector (optical component) HI: High beam lamp unit LO: Low beam lamp unit L1,L2: light
Claims
1. A first light source; A second light source; a single lens having a first light distribution section that mainly receives light emitted from the first light source, shapes the light into a first light distribution, and outputs the first light distribution; and a second light distribution section that mainly receives light emitted from the second light source, shapes the light into a second light distribution, and outputs the second light distribution; Equipped with The first light source is used alone or in cooperation with the second light source, and a surface treatment for diffusing light is applied to an incident surface or an exit surface of the second light distribution unit. A vehicle lamp characterized by:
2. an optical member that receives a part of the light emitted from the first light source; The optical member is configured to emit incident light mainly toward the second light distribution portion.
2. A vehicle lamp according to claim 1.
3. The first light distribution section is provided with a reflecting section that reflects a part of the incident light toward the exit surface of the second light distribution section.
3. A vehicle lamp according to claim 1 or 2.
4. The first light distribution is a low beam light distribution, and the second light distribution is a high beam light distribution.
2. A vehicle lamp according to claim 1.
5. The lens is provided with three or more of the first light distribution sections and the second light distribution sections alternately.
2. A vehicle lamp according to claim 1.
6. a first light distribution section that receives light emitted mainly by a first light source and outputs the light as a first light distribution, and a second light distribution section that receives light emitted mainly by a second light source and outputs the light as a second light distribution, a surface treatment for diffusing light is applied to the entire surface of a light incident surface or a light exit surface of either the first light distribution section or the second light distribution section; A single lens provided in a vehicle lamp.
Citation Information
Patent Citations
Vehicle headlight
JP2017091876A