Drawing lamps

Abstract

To form a plurality of drawing light distribution patterns in series while the patterns are closed to each other, in a drawing lighting fixture configured to form a drawing light distribution pattern.SOLUTION: A projection lens 30 has a structure in which first and second projection lens portions 32A and 32B are aligned in a left-and-right direction. Then, a light-shielding plate 40 has a structure in which first opening portions 40Aa and 40Ac for forming two first drawing light distribution patterns are formed at upper and lower two places on a lighting fixture rear side of a first projection lens portion 32A, and second opening portions 40Bb and 40Bd for forming two second drawing light distribution patterns are formed at upper and lower two places on the lighting fixture rear side of the second projection lens portion 32B. Therefore, the four first and second drawing light distribution patterns are alternately formed in series, and it is possible to prevent such a situation in which, an interval between the first opening portions 40Aa and 40Ac and an interval between the second opening portions 40Bb and 40Bd become extremely narrow.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a drawing lighting fixture configured to form a drawing light distribution pattern. [Background technology]

[0002] Conventionally, drawing lamps for forming a drawing light distribution pattern (i.e., a light distribution pattern for drawing letters, symbols, etc. on the road surface in front of the lamp) have been known that are configured to irradiate light emitted from a light-emitting element toward the front of the lamp via a projection lens.

[0003] In such a drawing lamp, a light blocking plate is arranged between the light emitting element and the projection lens to block a portion of the light traveling from the light emitting element to the projection lens, and the shape of the opening formed in this light blocking plate is projected by the projection lens to form a drawing light distribution pattern.

[0004] Patent Document 1 describes a light blocking plate in an in-vehicle drawing lamp having a plurality of openings formed at a plurality of locations spaced apart in the vertical direction. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] International Publication No. 2022 / 019231 Summary of the Invention [Problem to be solved by the invention]

[0006] By forming a drawing light distribution pattern using light emitted from an in-vehicle drawing lamp, the vehicle's intentions can be communicated to those around it when driving at night, thereby making it possible to alert other vehicles, pedestrians, etc.

[0007] In this case, if the light shielding plate is configured with multiple openings spaced apart in the vertical direction, as in the drawing lamp described in the above-mentioned Patent Document 1, the drawing light distribution pattern will be formed in a series line facing forward of the lamp, thereby making it possible to increase the effect of drawing attention to those in the surrounding area.

[0008] However, if such a configuration is adopted, the vertical width of the portions of the light-shielding plate located between the openings will be narrowed, and its rigidity will likely decrease, making it difficult to maintain the desired opening shape and therefore difficult to form multiple drawing light distribution patterns in series and close to each other.

[0009] The present invention has been made in consideration of the above circumstances, and aims to provide a drawing lighting fixture configured to form a drawing light distribution pattern, which is capable of forming multiple drawing light distribution patterns in series and close to each other. [Means for solving the problem]

[0010] The present invention is intended to achieve the above object by devising an arrangement and configuration of the projection lens and the light blocking plate.

[0011] That is, the drawing lamp according to the present invention is: A drawing lamp configured to form a drawing light distribution pattern by irradiating light emitted from a light-emitting element forward through a projection lens, a light blocking plate is disposed between the light emitting element and the projection lens to block a part of the light traveling from the light emitting element to the projection lens; The projection lens is configured such that the first and second projection lens portions are arranged side by side in a required direction that intersects with the front-to-rear direction of the lamp, A plurality of openings are formed in the light blocking plate, the light-blocking plate includes, as the plurality of openings, a plurality of first openings arranged at intervals in a direction intersecting the required direction on the rear side of the lamp of the first projection lens unit, and at least one second opening arranged on the rear side of the lamp of the second projection lens unit; The light-emitting elements include first light-emitting elements arranged on the rear side of the lamp of the plurality of first openings, and second light-emitting elements arranged on the rear side of the lamp of the at least one second opening, The arrangement of the first projection lens unit and the plurality of first openings, and the arrangement of the second projection lens unit and the at least one second opening are set so that each of the plurality of first drawing light distribution patterns formed by the light emitted from the first light-emitting element incident on the first projection lens unit through the plurality of first openings, and each of the at least one second drawing light distribution pattern formed by the light emitted from the second light-emitting element incident on the second projection lens unit through the at least one second opening, are alternately formed in a serial arrangement.

[0012] The "drawing lamp" may be a lamp for use in a vehicle, or may be a lamp for use in a non-vehicle application.

[0013] The specific arrangement of the "light blocking plate" is not particularly limited as long as it is configured to block a portion of the light traveling from the light emitting element to the projection lens between the light emitting element and the projection lens.

[0014] The "arrangement of the first projection lens unit and the plurality of first openings, and the arrangement of the second projection lens unit and the at least one second opening" is not particularly limited in terms of its specific arrangement, as long as it is an arrangement that allows the "each of the plurality of first drawing light distribution patterns" and the "each of the at least one second drawing light distribution pattern" to be formed alternately in a serial arrangement.

[0015] For example, to achieve this, the optical axis of the first projection lens unit and the optical axis of the second projection lens unit are arranged parallel to each other, and the amount of displacement from the optical axis of the first projection lens unit of the multiple first openings and the amount of displacement from the optical axis of the second projection lens unit of at least one second opening are set to different values ​​in the direction intersecting with the required direction; or the amount of displacement from the optical axis of the first projection lens unit of the multiple first openings and the amount of displacement from the optical axis of the second projection lens unit of at least one second opening are set to the same value in the direction intersecting with the required direction, and the optical axis of the first projection lens unit and the optical axis of the second projection lens unit are arranged at different inclination angles in the direction intersecting with the required direction. [Effects of the Invention]

[0016] The drawing lamp of the present invention is configured to form a drawing light distribution pattern by irradiating light emitted from a light-emitting element toward the front of the lamp through a light-blocking plate and a projection lens. The projection lens is configured so that first and second projection lens portions are arranged side by side in a required direction that intersects the fore-and-aft direction of the lamp. Furthermore, a plurality of first openings are formed at intervals in a direction that intersects the required direction on the rear side of the lamp of the first projection lens portion in the light-blocking plate, and at least one second opening is formed on the rear side of the lamp of the second projection lens portion. Furthermore, a first light-emitting element is arranged on the rear side of the lamp of the first opening, and a second light-emitting element is arranged on the rear side of the lamp of at least one second opening, so that the following effects can be obtained.

[0017] In other words, the light emitted from the first light-emitting element that enters the first projection lens unit through multiple first openings can form multiple first drawing light distribution patterns as inverted projection images of the multiple first openings, and the light emitted from the second light-emitting element that enters the second projection lens unit through at least one second opening can form at least one second drawing light distribution pattern as an inverted projection image of at least one second opening, thereby alerting other vehicles, pedestrians, etc.

[0018] Furthermore, the arrangement of the first projection lens unit and the multiple first openings, and the arrangement of the second projection lens unit and at least one second opening are set so that each of the multiple first drawing light distribution patterns and each of the at least one second drawing light distribution pattern are alternately formed in a serial arrangement, thereby achieving the following advantageous effects.

[0019] In other words, the multiple first openings are formed on the rear side of the lamp of the first projection lens unit, and at least one second opening is formed on the rear side of the lamp of the second projection lens unit, so that the spacing between the multiple first openings and the spacing between the at least one second opening can be prevented from becoming extremely narrow.

[0020] Therefore, the configuration of the light blocking plate allows multiple drawing light distribution patterns to be formed in series and close to each other without reducing the rigidity of the portions located between multiple first openings and the portions located between at least one second opening.

[0021] According to the present invention, in a drawing lighting fixture configured to form a drawing light distribution pattern, a plurality of drawing light distribution patterns can be formed in series and in close proximity to each other, thereby forming a drawing light distribution pattern that is excellent at calling the attention of those in the surrounding area.

[0022] In the above configuration, if the direction intersecting the required direction is set to the up-down direction, multiple first and second drawing light distribution patterns can be formed in a series arrangement in a direction along the lighting direction of the lamp, thereby further enhancing the effect of drawing attention to the surrounding area.

[0023] In this case, if each of the plurality of first openings and at least one second opening is configured to have a V-shaped opening shape, the inverted projection image can form a plurality of inverted V-shaped (i.e., pointed shapes toward the front of the lamp) first and second drawing light distribution patterns arranged in series, thereby further enhancing the effect of drawing attention to the surrounding area.

[0024] Furthermore, if the light-blocking plate were configured with multiple openings, each having a V-shaped opening, arranged in series with spacing in the vertical direction, the portions located between the multiple openings would be formed to be narrow and extend in a V shape, making it difficult to ensure the rigidity of the light-blocking plate, and therefore adopting the above configuration is particularly effective.

[0025] In the above configuration, if a first focusing lens is arranged between the first light-emitting element and the light-shielding plate to focus the light emitted from the first light-emitting element toward the plurality of first openings, and a second focusing lens is arranged between the second light-emitting element and the light-shielding plate to focus the light emitted from the second light-emitting element toward at least one second opening, the plurality of first and second drawing light distribution patterns can be formed as brighter and more uniform light distribution patterns.

[0026] In the above configuration, if the first light-emitting elements are arranged at positions corresponding to the plurality of first openings, respectively, and the second light-emitting elements are arranged at positions corresponding to at least one of the second openings, respectively, the plurality of first and second drawing light distribution patterns can be formed as even brighter and more uniform light distribution patterns. Furthermore, by adopting such a configuration, it is also possible to selectively form each of the plurality of first and second drawing light distribution patterns. [Brief explanation of the drawings]

[0027] [Figure 1] FIG. 1 is a front view showing a drawing lamp according to an embodiment of the present invention; [Figure 2] FIG. 10 is a plan view showing the drawing lamp. [Figure 3] FIG. 10 is a side view showing the drawing lamp. [Figure 4] FIG. 2 is an exploded perspective view showing the drawing lamp in its main components; [Figure 5] Cross section of line VV in Figure 1 [Figure 6] Cross section of line VI-VI in Figure 1 [Figure 7] FIG. 1 is a side view showing the drawing lamp mounted on a vehicle. [Figure 8] FIG. 1 is a plan view showing the drawing lamp mounted on a vehicle. [Figure 9] 1A and 1B are diagrams for explaining the operation of the embodiment, in which (a) is a front view showing the main part of the drawing lamp, and (b) is a front view showing a comparative example. [Figure 10] FIG. 9( a ) is a diagram similar to FIG. 9( a ), showing a first modified example of the embodiment; [Figure 11] (a) is a cross-sectional view taken along line XIa-XIa in FIG. 10, and (b) is a cross-sectional view taken along line XIb-XIb in FIG. 10. [Figure 12] FIG. 12 is a view similar to FIG. 11, showing a second modification of the embodiment; DETAILED DESCRIPTION OF THE INVENTION

[0028] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0029] Fig. 1 is a front view showing a drawing lamp 10 according to one embodiment of the present invention. Fig. 2 is a plan view showing the drawing lamp 10, and Fig. 3 is a side view showing the drawing lamp 10. Fig. 4 is an exploded perspective view showing the drawing lamp 10 disassembled into its main components.

[0030] 1 to 4, the direction indicated by X is "forward of the lamp," the direction indicated by Y is "leftward" ("rightward" when viewed from the front of the lamp) perpendicular to "forward of the lamp," and the direction indicated by Z is "upward." This is the same in other figures.

[0031] Before describing the specific configuration of the drawing lamp 10 according to this embodiment, an outline thereof will be described.

[0032] 7 and 8 are a side view and a plan view showing the drawing lamp 10 mounted on a vehicle 100. FIG.

[0033] 7 and 8, the drawing lamp 10 is mounted on a side end in the vehicle width direction at the front end of the vehicle 100 and is configured to emit light obliquely downward toward the outside in the vehicle width direction. At this time, the drawing lamp 10 is turned on in synchronization with the turning on of a front turn signal lamp (not shown), thereby forming a drawing light distribution pattern PA on the road surface 2 ahead of the vehicle. Note that FIG. 8 shows a state in which the left drawing lamp 10 is turned on.

[0034] As shown in Figures 7 and 8, when the drawing lamp 10 is mounted on a vehicle 100, the front of the lamp is set to be inclined diagonally downward relative to the fore-and-aft direction of the vehicle, but as shown in Figures 1 to 4, when the drawing lamp 10 is in a stand-alone state, the front of the lamp is set to face horizontally.

[0035] Next, a specific configuration of the drawing lamp 10 will be described.

[0036] 5 is a cross-sectional view taken along line VV in FIG. 1, and FIG. 6 is a cross-sectional view taken along line VI-VI in FIG.

[0037] As shown in Figures 5 and 6, the drawing lamp 10 is configured to irradiate light emitted from a light-emitting element toward the front of the lamp through a projection lens 30, and is equipped with first and second light-emitting elements 20A and 20B as the light-emitting elements.

[0038] The projection lens 30 is configured with two identically configured first and second projection lens sections 32A and 32B arranged side by side in the left-right direction. The first and second projection lens sections 32A and 32B are formed so that their optical axes Axa and Axb extend in the front-to-rear direction of the lamp at the same height.

[0039] The first and second projection lens sections 32A, 32B are plano-convex lenses whose front surfaces 32Aa, 32Ba are formed by convex curved surfaces, and have a rectangular (specifically, approximately square) outer shape when viewed from the front of the lamp, and their effective lens surfaces (i.e., the front surfaces 32Aa, 32Ba that perform the lens function) are adjacent to each other and formed integrally.

[0040] The first and second projection lens sections 32A, 32B are surrounded by an outer peripheral flange section 34 formed to extend along their rear surfaces. A pair of mounting flange sections 36 are formed on both the left and right sides of this outer peripheral flange section 34. Each of the pair of left and right mounting flange sections 36 has an L-shaped horizontal cross section, and their rear end surfaces are formed to be positioned on the same plane perpendicular to the front-to-rear direction of the lamp.

[0041] The first and second light emitting elements 20A and 20B are both white light emitting diodes, and have a rectangular (specifically, square) light emitting surface 20a.

[0042] The first and second light-emitting elements 20A, 20B are mounted on a common substrate 22, with the substrate 22 being disposed on the rear side of the lamp from the first and second projection lens units 32A, 32B. The substrate 22 is supported by a heat sink 60, with the substrate 22 disposed so as to extend along a plane perpendicular to the front-to-rear direction of the lamp.

[0043] A light blocking plate 40 is disposed between the first and second light emitting elements 20A, 20B and the first and second projection lens units 32A, 32B to block a portion of the light traveling from the first and second light emitting elements 20A, 20B toward the first and second projection lens units 32A, 32B. The light blocking plate 40 is made of a thin plate extending along a plane perpendicular to the front-to-rear direction of the lamp.

[0044] The light shielding plate 40 is positioned such that its left and right ends abut against the pair of left and right mounting flange portions 36 of the projection lens 30 from the rear side of the lamp, thereby arranging it along a vertical plane including the rear focal points Fa and Fb of the first and second projection lens portions 32A and 32B.

[0045] The light blocking plate 40 has two first openings 40Aa, 40Ac formed in the area behind the lamp of the first projection lens section 20A, and two second openings 40Bb, 40Bd formed in the area behind the lamp of the second projection lens section 20B.

[0046] FIG. 9(a) is a front view showing the main part of the drawing lamp 10. FIG.

[0047] In Figure 9(a), the two second openings 40Bb, 40Bd are shown by dashed double-dashed lines in a state where they have been translated in parallel to the position of the first projection lens section 20A located on the right side (left side when viewed from the front of the lamp), and the two first openings 40Aa, 40Ac are shown by dashed double-dashed lines in a state where they have been translated in parallel to the position of the second projection lens section 20B located on the left side.

[0048] 9(a), the two first openings 40Aa, 40Ac and the two second openings 40Bb, 40Bd each have a V-shaped opening shape when viewed from the front of the lamp, with the opening angle of the V-shape set to a value of approximately 90 to 150 degrees (for example, approximately 120 degrees).

[0049] Of the two first openings 40Aa, 40Ac and the two second openings 40Bb, 40Bd, the second opening 40Bb is located higher than the first opening 40Aa, the first opening 40Ac is located higher than the second opening 40Bb, and the second opening 40Bd is located higher than the first opening 40Ac.

[0050] In this case, the two first openings 40Aa, 40Ac and the two second openings 40Bb, 40Bd are formed so that their vertical widths gradually increase in the order of first opening 40Aa, second opening 40Bb, first opening 40Ac, second opening 40Bd, and the vertical spacing between them is also set to gradually increase in this order.

[0051] The two first openings 40Aa, 40Ac and the two second openings 40Bb, 40Bd are arranged as a whole such that the central lower end position of the upper inner peripheral edge of the first opening 40Ac is positioned on the optical axis Axa of the first projection lens section 32A.

[0052] In addition, the two first openings 40Aa, 40Ac and the two second openings 40Bb, 40Bd are formed so that the inner peripheral edges on both the left and right sides extend upward in a direction that widens slightly relative to the vertical direction, and the inner peripheral edges on both the left and right sides are formed so that they are located on the same pair of left and right imaginary straight lines.

[0053] The first light-emitting element 20A is arranged below the optical axis Axa of the first projection lens unit 32A, and the second light-emitting element 20B is arranged above the optical axis Axb of the second projection lens unit 32B.

[0054] Specifically, the first light-emitting element 20A is disposed so that its light-emitting center is located on a first reference axis La extending in the front-to-rear direction of the lamp below the optical axis Axa, and the second light-emitting element 20B is disposed so that its light-emitting center is located on a second reference axis Lb extending in the front-to-rear direction of the lamp above the optical axis Axb. In this case, the first reference axis La is set at a position passing through the central lower end position of the lower inner peripheral edge of the first opening 40Aa of the light-blocking plate 40. Furthermore, the second reference axis Lb is set at a position passing through the central lower end position of the lower inner peripheral edge of the second opening 40Bd of the light-blocking plate 40.

[0055] The first and second light emitting elements 20A and 20B are connected to an electronic control unit (not shown), and the electronic control unit controls whether the elements are turned on or off depending on the vehicle running conditions and the like.

[0056] A condenser lens assembly 50 is disposed between the substrate 22 and the light blocking plate 40 .

[0057] The condenser lens assembly 50 is configured such that first and second condenser lenses 52A, 52B are aligned in the left-right direction and integrally formed via a plate-like portion. The first and second condenser lenses 52A, 52B are arranged so that their optical axes are aligned with the first and second reference axes La, Lb.

[0058] The first and second condenser lenses 52A, 52B have rear surfaces 52Ab, 52Bb formed as convex curved surfaces, and their front surfaces 52Aa, 52Ba are formed as convex curved surfaces with a smaller curvature than the rear surfaces 52Ab, 52Bb.

[0059] As a result, the first focusing lens 52A causes the light emitted from the first light-emitting element 20A to enter the first opening 40Aa of the light-shielding plate 40 as light parallel to the first reference axis La, and the second focusing lens 52B causes the light emitted from the second focusing lens 52B to enter the two second openings 40Bb, 40Bd of the light-shielding plate 40 as light parallel to the second reference axis Lb.

[0060] The condenser lens assembly 50 has a pair of mounting flanges 54 formed on both the left and right sides of a plate-like portion positioned around the first and second condenser lenses 52A, 52B. The pair of left and right mounting flanges 54 have an L-shaped horizontal cross section, and their front end faces abut against both the left and right ends of the light blocking plate 40 from the rear side of the lamp, thereby positioning the first and second condenser lenses 52A, 52B on the first and second reference axes La, Lb.

[0061] The heat sink 60 comprises a main body 62 extending along a plane perpendicular to the front-to-rear direction of the lamp, a plurality of heat dissipation fins 64 extending along a vertical plane from the main body 62 toward the rear of the lamp, and a pair of mounting flanges 66 formed on both the left and right sides of the main body 62.

[0062] The substrate 22 is in surface contact with the main body 62 of the heat sink 60, and is positioned and supported by fastening screws 72 at two diagonal positions.

[0063] The projection lens 30, the light blocking plate 40, and the condenser lens assembly 50 are positioned and supported by tightening screws 74 at two diagonal positions relative to a pair of left and right mounting flanges 66 of the heat sink 60. The screws are tightened by tightening the pair of left and right mounting flanges 36 of the projection lens 30, both left and right ends of the light blocking plate 40, and the pair of left and right mounting flanges 54 of the condenser lens assembly 50 together in a state where they are superimposed on the pair of left and right mounting flanges 66 of the heat sink 60. Note that a positioning pin 36a is formed on each of the pair of left and right mounting flanges 36 of the projection lens 30, while pin insertion holes 40a, 54a, 66a, through which the positioning pin 36a is inserted, are formed on both left and right ends of the light blocking plate 40, the pair of left and right mounting flanges 54 of the condenser lens assembly 50, and the pair of left and right mounting flanges 66 of the heat sink 60, respectively.

[0064] Next, the drawing light distribution pattern PA shown in FIGS. 7 and 8 will be described.

[0065] As described above, the drawing light distribution pattern PA is formed by the light irradiated from the drawing lamp 10, and this drawing light distribution pattern PA is composed of four first and second drawing light distribution patterns PAa, PAb, PAc, and PAd, as shown in Figures 7 and 8.

[0066] The four first and second drawing light distribution patterns PAa to PAd are all inverted V-shaped (i.e., pointed toward the front of the lamp) light distribution patterns, and are formed in the long-distance area, middle-distance area, short-distance area and close-up area of ​​the road surface 2 ahead of the vehicle, with approximately the same size and arranged in series at approximately equal intervals.

[0067] The first drawing light distribution patterns PAa and PAc formed in the long distance region and the short distance region are light distribution patterns formed by irradiating the light emitted from the first light-emitting element 20A toward the front of the lamp via the first projection lens 32A. The second drawing light distribution patterns PAb and PAd formed in the medium distance region and the close distance region are light distribution patterns formed by irradiating the light emitted from the second light-emitting element 20B toward the front of the lamp via the second projection lens 32B.

[0068] The first drawing light distribution pattern PAa is formed as an inverted projection image of a first opening 40Aa having a V-shaped opening formed in the light blocking plate 40. Because this first opening 40Aa is located significantly below the optical axis Axa of the first projection lens portion 32A, the light emitted from the first light-emitting element 20A is irradiated toward the front of the lamp as light directed significantly upward from the optical axis Axa, and as a result, the first drawing light distribution pattern PAa is formed in the long-distance region.

[0069] The second drawing light distribution pattern PAb is formed as an inverted projection image of a second opening 40Bb having a V-shaped opening formed in the light blocking plate 40. Because the second opening 40Bb is located below the optical axis Axb of the second projection lens portion 32B, the light emitted from the second light-emitting element 20B is irradiated toward the front of the lamp as light directed upward from the optical axis Axb, and as a result, the second drawing light distribution pattern PAb is formed in the mid-distance region.

[0070] The first drawing light distribution pattern PAc is formed as an inverted projection image of a first opening 40Ac having a V-shaped opening formed in the light blocking plate 40. This first opening 40Ac is positioned approximately on the optical axis Axa of the first projection lens portion 32A, and therefore the emitted light from the first light-emitting element 20A is irradiated toward the front of the lamp as light approximately parallel to the optical axis Axa, and as a result, the first drawing light distribution pattern PAc is formed in the short distance region.

[0071] The second drawing light distribution pattern PAd is formed as an inverted projection image of a second opening 40Bd having a V-shaped opening formed in the light blocking plate 40. This second opening 40Bd is located above the optical axis Axb of the second projection lens portion 32B, and therefore the light emitted from the second light-emitting element 20B is irradiated toward the front of the lamp as light directed downward from the optical axis Axb, and as a result, the second drawing light distribution pattern PAd is formed in the close distance region.

[0072] At this time, the light emitted from the first light-emitting element 20A is efficiently incident on the first openings 40Aa, 40Ac by the first condenser lens 52A having a biconvex lens shape, thereby ensuring sufficient brightness of the first drawing light distribution patterns PAa, PAc. Also, the light emitted from the second light-emitting element 20B is efficiently incident on the second openings 40Bb, 40Bd by the second condenser lens 52B having a biconvex lens shape, thereby ensuring sufficient brightness of the second drawing light distribution patterns PAb, PAd.

[0073] The four first and second drawing light distribution patterns PAa to PAd are formed to be approximately the same size, because the vertical widths of the first opening 40Aa, the second opening 40Bb, the first opening 40Ac, and the second opening 40Bd increase in this order, and the inner peripheral edges on both the left and right sides are formed to extend upward in a direction that widens slightly relative to the vertical direction, and the inner peripheral edges on both the left and right sides are located on the same pair of left and right imaginary straight lines.

[0074] Next, the operation of this embodiment will be described.

[0075] The drawing lighting fixture 10 according to this embodiment is configured to form a drawing light distribution pattern PA by irradiating light emitted from the first and second light-emitting elements 20A and 20B toward the front of the lighting fixture through a light-shielding plate 40 and a projection lens 30. The projection lens 30 is configured such that a first projection lens portion 32A and a second projection lens portion 32B are arranged side by side in the left-right direction (a required direction intersecting with the front-rear direction of the lighting fixture). In addition, a vertical ( Two first openings 40Aa, 40Ac are formed at intervals in the direction intersecting the required direction, and two second openings 40Bb, 40Bd are formed at intervals in the vertical direction behind the lamp of the second projection lens section 32B. Furthermore, a first light-emitting element 20A is arranged behind the lamp of the two first openings 40Aa, 40Ac, and a second light-emitting element 20B is arranged behind the lamp of the two second openings 40Bb, 40Bd, so that the following effects can be obtained.

[0076] That is, the light emitted from the first light-emitting element 20A that enters the first projection lens unit 32A through the two first openings 40Aa, 40Ac can form two first drawing light distribution patterns PAa, PAc as inverted projection images of the two first openings 40Aa, 40Ac, and the light emitted from the second light-emitting element 20B that enters the second projection lens unit 32B through the two second openings 40Bb, 40Bd can form two second drawing light distribution patterns PAb, PAd as inverted projection images of the two second openings 40Bb, 40Bd, thereby alerting other vehicles, pedestrians, etc.

[0077] Furthermore, the arrangement of the first projection lens section 32A and the two first openings 40Aa, 40Ac, and the arrangement of the second projection lens section 32B and the two second openings 40Bb, 40Bd are set so that each of the two first drawing light distribution patterns PAa, PAc and each of the two second drawing light distribution patterns PAb, PAd are alternately formed in a serial arrangement, thereby achieving the following advantageous effects.

[0078] That is, the two first openings 40Aa, 40Ac are formed on the rear side of the lamp of the first projection lens unit 32A, and the two second openings 40Bb, 40Bd are formed on the rear side of the lamp of the second projection lens unit, so that the distance between the two first openings 40Aa, 40Ac and the distance between the two second openings 40Bb, 40Bd do not become extremely narrow.

[0079] Therefore, the configuration of the light-shielding plate 40 allows the four first and second drawing light distribution patterns PAa, PAb, PAc, and PAd that make up the drawing light distribution pattern PA to be formed in series and close to each other without reducing the rigidity of the portion located between the two first openings 40Aa, 40Ac and the portion located between the two second openings 40Bb, 40Bd.

[0080] As described above, according to this embodiment, in the drawing lighting fixture 10 configured to form the drawing light distribution pattern PA, the four first and second drawing light distribution patterns PAa, PAb, PAc, and PAd can be formed in series and close to each other as the drawing light distribution pattern PA, thereby forming a drawing light distribution pattern that is excellent at calling the attention of those in the surrounding area.

[0081] In addition, in this embodiment, the two first openings 40Aa, 40Ac and the two second openings 40Bb, 40Bd are arranged at intervals in the vertical direction, so that the two first drawing light distribution patterns PAa, PAc and the two second drawing light distribution patterns PAb, PAd can be formed in a serial arrangement in the direction along the lamp illumination direction, thereby further enhancing the effect of drawing attention to the surrounding area.

[0082] Moreover, in this embodiment, since the two first openings 40Aa, 40Ac and the two second openings 40Bb, 40Bd all have a V-shaped opening shape, four inverted V-shaped first and second drawing light distribution patterns PAa, PAb, PAc, PAd can be formed as inverted projection images in a series arrangement, thereby further enhancing the effect of drawing attention to the surrounding area.

[0083] Furthermore, when the four inverted V-shaped first and second drawing light distribution patterns PAa, PAb, PAc, and PAd are formed in series in this manner, it is particularly effective to employ the configuration of this embodiment. This point will be described in detail below.

[0084] FIG. 9(b) is a view similar to FIG. 9(a) and shows a comparative example of this embodiment.

[0085] As shown in Figure 9(b), in this comparative example, instead of the light-blocking plate 40 of this embodiment, a light-blocking plate 40' having four V-shaped openings 40a', 40b', 40c', and 40d' spaced apart in the vertical direction is arranged behind the lamp of the projection lens section 32', which has a configuration similar to that of the first projection lens section 32A of this embodiment.

[0086] In this case, the four openings 40a', 40b', 40c', and 40d' have the same opening shapes as the first and second openings 40Aa, 40Bb, 40Ac, and 40Bd of this embodiment, respectively.

[0087] In addition, in this comparative example, the light-emitting element 20' is arranged on the optical axis Ax' of the projection lens section 32', and a focusing lens 52' for directing the light emitted from this light-emitting element 20' into the four openings 40a' to 40d' is arranged on the optical axis Ax'.

[0088] If a light-shielding plate 40' like that in this comparative example is adopted, the portions located between the four openings 40a' to 40d' will be narrow and V-shaped, making it difficult to ensure the rigidity of the light-shielding plate 40'.

[0089] In contrast, as shown in Figure 9(a), in the light-shielding plate 40 of this embodiment, the distance between the two first openings 40Aa, 40Ac and the distance between the two second openings 40Bb, 40Bd are sufficiently secured, so that the rigidity can be sufficiently secured.

[0090] Furthermore, in this embodiment, a first focusing lens 52A is arranged between the first light-emitting element 20A and the light-shielding plate 40 to focus the light emitted from the first light-emitting element 20A toward the two first openings 40Aa, 40Ac, and a second focusing lens 52B is arranged between the second light-emitting element 20B and the light-shielding plate 40 to focus the light emitted from the second light-emitting element 20B toward the two second openings 40Bb, 40Bd, so that the four first and second drawing light distribution patterns PAa, PAb, PAc, PAd can be formed as brighter and more uniform light distribution patterns.

[0091] In the above embodiment, the two first openings 40Aa, 40Ac and the two second openings 40Bb, 40Bd formed in the light-shielding plate 40 are described as all having a V-shaped opening shape, but it is also possible to configure them to have other opening shapes (for example, opening shapes such as downward arrows or inverted trapezoids).

[0092] In the above embodiment, it has been described that the light emitted from the first and second light-emitting elements 20A, 20B is incident on the two first openings 40Aa, 40Ac and the two second openings 40Bb, 40Bd via the first and second focusing lenses 52A, 52B, but it is also possible to configure the light to directly enter the two first openings 40Aa, 40Ac and the two second openings 40Bb, 40Bd.

[0093] In the above embodiment, it was described that two first openings 40Aa, 40Ac are formed on the rear side of the lamp of the first projection lens portion 32A in the light shielding plate 40, and two second openings 40Bb, 40Bd are formed on the rear side of the lamp of the second projection lens portion 32B, but it is also possible to configure the light shielding plate 40 so that only a single second opening 40Bb is formed on the rear side of the lamp of the second projection lens portion 32B.

[0094] In the above embodiment, the first and second projection lens units 32A, 32B are described as being formed so that their optical axes Axa, Axb extend in the front-to-rear direction of the lamp at the same height position, but other configurations (for example, a configuration in which the optical axis Axa of the first projection lens unit 32A extends upward more than the optical axis Axb of the second projection lens unit 32B) can also be adopted.

[0095] In the above embodiment, the first and second light emitting elements 20A and 20B are described as emitting white light, but other light colors (such as amber or red) may also be used.

[0096] In the above embodiment, the drawing lamp 10 is described as being mounted on the vehicle width direction side end at the front end of the vehicle 100, but it can also be configured to be mounted on the rear end or side of the vehicle 100, etc.

[0097] In the above embodiment, it has been described that the light emitted from the drawing lamp 10 forms a drawing light distribution pattern PA on the road surface 2 ahead of the vehicle, but it is also possible to configure the drawing light distribution pattern to be formed on a wall surface located in front of the lamp or a wall surface extending toward the front of the lamp.

[0098] Next, a modification of the above embodiment will be described.

[0099] First, a first modification of the above embodiment will be described.

[0100] Fig. 10 is a view similar to Fig. 9(a) showing a main part of the drawing lamp 110 according to this modified example. Fig. 11(a) is a cross-sectional view taken along line XIa-XIa in Fig. 10, and Fig. 11(b) is a cross-sectional view taken along line XIb-XIb in Fig. 10.

[0101] As shown in FIGS. 10 and 11, the basic configuration of this modification is similar to that of the above embodiment, but the number and arrangement of the first and second light-emitting elements 20A, 20B are partially different from those of the above embodiment.

[0102] That is, in this modified example, a first light-emitting element 20A is arranged on the rear side of each of the two first openings 40Aa, 40Ac formed in the light-shielding plate 40, and a second light-emitting element 20B is arranged on the rear side of each of the two second openings 40Bb, 40Bd.

[0103] Specifically, the two first light-emitting elements 20A arranged on the rear side of the two first openings 40Aa, 40Ac are arranged so that their light-emitting centers are located at the lower central positions of the upper inner peripheral edges of the first openings 40Aa, 40Ac in a front view of the lamp. Also, the two first light-emitting elements 20B arranged on the rear side of the two second openings 40Bb, 40Bd are arranged so that their light-emitting centers are located at the lower central positions of the upper inner peripheral edges of the second openings 40Bb, 40Bd in a front view of the lamp.

[0104] As a result, in this modified example, the light emitted from the first light-emitting element 20A located on the lower side is efficiently incident on the first opening 40Aa via the first collecting lens 52A, and the light emitted from the first light-emitting element 20A located on the upper side is efficiently incident on the first opening 40Ac via the first collecting lens 52A.Furthermore, the light emitted from the second light-emitting element 20B located on the lower side is efficiently incident on the second opening 40Bb via the second collecting lens 52B, and the light emitted from the second light-emitting element 20B located on the upper side is efficiently incident on the second opening 40Bd via the second collecting lens 52B.

[0105] By adopting the configuration of this modified example, the amount of light incident on the first projection lens unit 32A through the two first openings 40Aa, 40Ac increases, making it easy to ensure the brightness of the first drawing light distribution patterns PAa, PAc (see Figures 7 and 8) formed in the long distance area and the short distance area, and also, the amount of light incident on the second projection lens unit 32B through the two second openings 40Bb, 40Bd increases, making it easy to ensure the brightness of the second drawing light distribution patterns PAb, PAd formed in the medium distance area and the short distance area.

[0106] Next, a second modification of the above embodiment will be described.

[0107] FIG. 12 is a view similar to FIG. 11, showing the main part of a drawing lamp 210 according to this modified example.

[0108] As shown in Figure 12, the basic configuration of this modified example is the same as that of the first modified example described above, but differs from that of the first modified example in that a light guide 280 is arranged between the substrate 22 and the light shielding plate 40.

[0109] That is, in this modified example, instead of the condenser lens assembly 50 of the first modified example, a light guide 280 is arranged between the substrate 22 and the light blocking plate 40. This light guide 280 includes a plate-shaped portion 282 formed so as to extend along the rear surface of the light blocking plate 40, and four light guide portions 284Aa, 284Ac, 284Bb, 284Bd formed so as to protrude from the rear surface of this plate-shaped portion 282 towards the rear of the lamp.

[0110] The four second light guiding portions 284Aa to 284Bd are formed at positions corresponding to the two first openings 40Aa and 40Ac and the two second openings 40Bb and 40Bd formed in the light blocking plate 40.

[0111] Specifically, light-guiding portion 284Aa is formed to expand from first light-emitting element 20A located below toward first opening 40Aa. Light-guiding portion 284Aa has a trapezoidal vertical cross section, and its rear end surface is located near the front of first light-emitting element 20A located below. The front edge of light-guiding portion 284Aa is connected to plate-like portion 282 at a position surrounding first opening 40Aa.

[0112] Light-guiding portion 284Ac is formed to expand from first light-emitting element 20A located above toward first opening 40Ac. Light-guiding portion 284Ac has a trapezoidal vertical cross section, and its rear end surface is located near the front of first light-emitting element 20A located above. The front edge of light-guiding portion 284Ac is connected to plate-like portion 282 at a position surrounding first opening 40Ac.

[0113] The light guiding portion 284Bb is formed to expand from the second light emitting element 20B located below toward the second opening 40Bb. The light guiding portion 284Bb has a trapezoidal vertical cross section, and its rear end surface is located near the front of the second light emitting element 20B located below. The front edge of the light guiding portion 284Bb is connected to the plate-like portion 282 at a position surrounding the second opening 40Bb.

[0114] Light-guiding portion 284Bd is formed to expand from second light-emitting element 20B located above toward second opening 40Bd. Light-guiding portion 284Bd has a trapezoidal vertical cross section, and its rear end surface is located near the front of second light-emitting element 20B located above. The front edge of light-guiding portion 284Bd is connected to plate-like portion 282 at a position surrounding second opening 40Bd.

[0115] As a result, in this modified example, the light emitted from the first light-emitting element 20A located at the bottom enters the light-guiding portion 284Aa from its rear end surface, and then enters the first opening 40Aa either directly or after being totally reflected by the peripheral wall surface of the light-guiding portion 284Aa, and the light emitted from the first light-emitting element 20A located at the top enters the light-guiding portion 284Ac from its rear end surface, and then enters the first opening 40Ac either directly or after being totally reflected by the peripheral wall surface of the light-guiding portion 284Ac.

[0116] Similarly, the emitted light from the second light-emitting element 20B located on the lower side enters the light-guiding portion 284Bb from its rear end surface, and then enters the second opening 40Bb either directly or after being totally reflected by the peripheral wall surface of the light-guiding portion 284Bb, and the emitted light from the second light-emitting element 20B located on the upper side enters the light-guiding portion 284Bd from its rear end surface, and then enters the second opening 40Bd either directly or after being totally reflected by the peripheral wall surface of the light-guiding portion 284Bd.

[0117] By adopting the configuration of this modified example, the following effects can be obtained.

[0118] That is, the light emitted from the first light-emitting element 20A located on the lower side can be efficiently incident on the first opening 40Aa via the light-guiding portion 284Aa, and the light emitted from the first light-emitting element 20A located on the upper side can be efficiently incident on the first opening 40Ac via the light-guiding portion 284Ac.

[0119] Similarly, light emitted from the second light-emitting element 20B located on the lower side can be efficiently incident on the second opening 40Bb via the light-guiding portion 284Bb, and light emitted from the second light-emitting element 20B located on the upper side can be efficiently incident on the second opening 40Bd via the light-guiding portion 284Bd.

[0120] Therefore, in this modified example, as in the case of the first modified example described above, the amount of light incident on the first and second projection lens portions 32A, 32B can be increased, thereby easily ensuring the brightness of the first drawing light distribution patterns PAa, PAc formed in the long distance area and the short distance area, and the second drawing light distribution patterns PAb, PAd formed in the medium distance area and the close distance area (see Figures 7 and 8).

[0121] Moreover, in this modified example, the light emitted from the first light-emitting element 20A located on the lower side does not enter the first opening 40Ac located on the upper side, and the light emitted from the first light-emitting element 20A located on the upper side does not enter the first opening 40Aa located on the lower side.Similarly, the light emitted from the second light-emitting element 20B located on the lower side does not enter the second opening 40Bd located on the upper side, and the light emitted from the second light-emitting element 20B located on the upper side does not enter the second opening 40Bb located on the lower side.

[0122] Therefore, by individually lighting up each of the two first light-emitting elements 20A and the two second light-emitting elements 20B, it is possible to individually form the four first and second drawing light distribution patterns PAa, PAb, PAc, and PAd. Therefore, it is possible to select a mode in which the four first and second drawing light distribution patterns PAa, PAb, PAc, and PAd are simultaneously formed as the drawing light distribution pattern PA, or a mode in which they are formed individually.

[0123] It should be noted that the numerical values ​​shown as the specifications in the above embodiment and its modified examples are merely examples, and it goes without saying that these may be set to different values ​​as appropriate.

[0124] Furthermore, the present invention is not limited to the configurations described in the above embodiment and its modifications, and various other modified configurations can be adopted. [Explanation of symbols]

[0125] 2 Road surface in front of the vehicle 10, 110, 210 drawing lamps 20A First light-emitting element (light-emitting element) 20a Light-emitting surface 20B Second light-emitting element (light-emitting element) 22 PCB 30 Projection lens 32A First projection lens section 32Aa, 32Ba front 32B Second projection lens section 34 Peripheral flange 36, 54, 66 Mounting flange 36a Locating pin 40 Shade 40Aa, 40Ac 1st opening 40a, 54a, 66a Pin insertion holes 40Bb, 40Bd 2nd opening 50 Condenser lens assembly 52A First condenser lens 52Aa, 52Ba front 52Ab, 52Bb rear 52B Second focusing lens 60 Heatsink 62 Main body 64 Heat dissipation fin 72, 74 screws 100 vehicles 280 Light guide 282 Plate-shaped part 284Aa, 284Ac, 284Bb, 284Bd Light guide Axa, Axb optical axis Fa, Fb posterior focus La 1st reference axis Lb 2nd reference axis PA Light distribution pattern for drawing PAa, Pac First drawing light distribution pattern PAb, PAd Second drawing light distribution pattern

Claims

1. A drawing lamp configured to form a drawing light distribution pattern by irradiating light emitted from a light-emitting element forward through a projection lens, a light blocking plate is disposed between the light emitting element and the projection lens to block a part of the light traveling from the light emitting element to the projection lens; The projection lens is configured such that the first and second projection lens portions are arranged side by side in a required direction intersecting the front-rear direction of the lamp, A plurality of openings are formed in the light blocking plate, the light-blocking plate includes, as the plurality of openings, a plurality of first openings arranged at intervals in a direction intersecting the required direction on the rear side of the lamp of the first projection lens unit, and at least one second opening arranged on the rear side of the lamp of the second projection lens unit, The light-emitting elements include first light-emitting elements arranged on the rear side of the lamp of the plurality of first openings, and second light-emitting elements arranged on the rear side of the lamp of the at least one second opening, a first projection lens unit and a plurality of first openings, and a second projection lens unit and at least one second opening are arranged so that each of a plurality of first drawing light distribution patterns formed by the light emitted from the first light-emitting element and incident on the first projection lens unit through the plurality of first openings and each of at least one second drawing light distribution patterns formed by the light emitted from the second light-emitting element and incident on the second projection lens unit through the at least one second opening are alternately arranged in series.

2. 2. The drawing lamp according to claim 1, wherein the direction intersecting with the required direction is set to the up-down direction.

3. 3. The drawing lamp according to claim 2, wherein each of the plurality of first openings and the at least one second opening has a V-shaped opening shape.

4. a first condensing lens is disposed between the first light-emitting element and the light-shielding plate to condense light emitted from the first light-emitting element toward the plurality of first openings; 3. A drawing lamp as described in claim 1 or 2, characterized in that a second focusing lens is arranged between the second light-emitting element and the light-shielding plate to focus the light emitted from the second light-emitting element toward the at least one second opening.

5. the first light-emitting elements are disposed at positions corresponding to the plurality of first openings, respectively; 3. The drawing lamp according to claim 1, wherein the second light emitting elements are disposed at positions corresponding to the at least one second opening, respectively.

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