Vehicle light
The vehicle light system generates a three-dimensional image with varying color properties by combining images from multiple light sources, addressing the need for enhanced aesthetic and functional appeal in vehicle lighting.
Patent Information
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- SL CORP
- Filing Date
- 2018-11-28
- Publication Date
- 2026-06-11
Smart Images
Figure 00000000_0000_ABST
Abstract
Description
[0001] The disclosure relates to a vehicle light and in particular a vehicle light that can produce an image with a three-dimensional effect.
[0002] Generally, a vehicle has various lights with an illumination function, so that objects near the vehicle are more easily visible during operation in low-light conditions (e.g., at night), and a signaling function to inform other vehicles or pedestrians about the vehicle's driving status. For example, headlights, fog lights, etc., are designed for illumination, while turn signals, taillights, brake lights, etc., fulfill a signaling function.
[0003] Previously, vehicle lights served merely as devices for illuminating the road or for signaling to the outside. However, their importance has recently increased significantly from a design perspective. Accordingly, both the functional aspect of ensuring driver visibility and visibility to drivers of nearby vehicles (the primary function of vehicle lights) and the aesthetic aspect, perceived by consumers through design improvements, strongly influence purchasing decisions.
[0004] Therefore, a method is required that can both achieve a stable image by simply illuminating a light source and provide an improved visual design effect.
[0005] WO 2004 / 052 682 A1 discloses a light for a vehicle, wherein light falls on a light guide panel from one side.
[0006] US 8 764 266 B2 discloses a lighting fixture with edge-lit panels,
[0007] DE 21 2011 100 156 U1 discloses a motor vehicle lamp with light-guiding plates which are illuminated by light sources at their side edges.
[0008] The disclosure relates to a vehicle light that can generate a pattern with a three-dimensional effect through a combination of images that have different color properties.
[0009] It should be noted that the tasks of disclosure are not limited to those mentioned above, and other tasks of disclosure will be clear to the person skilled in the art from the following descriptions.
[0010] To solve the aforementioned problem, the present disclosure provides a vehicle light according to independent claim 1. Advantageous embodiments and further developments are the subject of the respective dependent claims.
[0011] A vehicle lamp according to an embodiment of the disclosure may have: a first image-generating part configured to emit light incident from at least one first light source to generate a first image, and a second image-generating part configured to emit light incident from at least one second light source to generate a second image in combination with the first image to form a predetermined pattern shape, wherein the light emitted by the second image-generating part may pass through the first image-generating part to generate the second image, and the first image and the second image may have different color properties.
[0012] Further details of the revelation can be found in the detailed description and the accompanying drawings, which are described below.
[0013] These and other aspects and features of the disclosure become clearer from the detailed description of exemplary embodiments with reference to the accompanying drawings. These show: Fig. 1 and Fig. 2 Perspective views of a vehicle light according to an exemplary embodiment of the disclosure; Fig. 3 and Fig. 4 exploded perspective views of the vehicle light according to the exemplary embodiment of the disclosure; Fig. 5 a schematic view of a direction of progression of repeated elements of an optical pattern of a first pattern part according to the exemplary embodiment of the disclosure; Fig. 6 a schematic view of a form of the optical pattern of the first pattern part according to the exemplary embodiment of the disclosure; Fig. 7 a schematic view of a light scattering angle with regard to the shape of the optical pattern of the first pattern part according to the exemplary embodiment of the disclosure; Fig. 8 a schematic view of color coordinates of light produced by a first light source and a second light source, according to the exemplary embodiment of the disclosure; Fig. 9 a schematic view of a color temperature of the light produced by the first light source according to the exemplary embodiment of the disclosure; Fig. 10 a schematic view of a wavelength of the light produced by the second light source according to the exemplary embodiment of the disclosure; Fig. 11 a schematic view of a light path of the vehicle lamp according to the exemplary embodiment of the disclosure; Fig. 12 a schematic view of a direction of progression of repeated elements of an optical pattern of a second pattern part according to the exemplary embodiment of the disclosure; and Fig. 13 a schematic view of a pattern shape formed by the vehicle light according to the exemplary embodiment of the disclosure.
[0014] Advantages and characteristics of the disclosure, as well as a method for its implementation, are evident from exemplary embodiments, which are described in more detail later with reference to the accompanying drawings. However, the disclosure is not limited to the exemplary embodiments described later, but can be implemented in various different forms. The exemplary embodiments merely serve to complete the disclosure so that the person skilled in the art can fully understand the scope of protection of the disclosure, and the disclosure is defined solely by the scope of protection of the claims. In the application, identical reference numerals consistently denote identical or similar components.
[0015] Consequently, in some exemplary embodiments, known procedures, known structures and known technologies are not specifically described in order to avoid an ambiguous interpretation of the disclosure.
[0016] Furthermore, the terms used here serve only to describe exemplary embodiments and are not intended to limit the disclosure. Singular forms are to be understood as including plural forms unless the context clearly requires otherwise. It is also understood that the terms "includes" and / or "include" do not preclude the presence or addition of one or more other elements, steps, or operational processes than those specifically described herein. The terms "and / or" or "at least one component of A or B" include combinations of one or all of the aforementioned circumstances.
[0017] Unless specifically stated or evident from the context, the term "approximately" as used herein means within a normal technical tolerance range, for example, within two standard deviations from the mean. "Approximately" may be understood as within 10%, 9%, 8%, 7%, 6%, 5%, 4%, 3%, 2%, 1%, 0.5%, 0.1%, 0.05%, or 0.01% of the stated value. Unless otherwise indicated by the context, all numerical values listed herein are modified by the term "approximately".
[0018] Furthermore, exemplary embodiments disclosed in the description are illustrated by perspective views, cross-sectional views, side views, and / or schematic views, which are ideal exemplary views of the disclosure. Consequently, the shapes of the exemplary views may be subject to changes depending on the manufacturing technology, permissible tolerances, and / or the like. Thus, the exemplary embodiments of the disclosure are not limited to the specific shapes shown but include changes to shapes resulting from a manufacturing process. Moreover, in each of the views shown in the exemplary embodiments of the disclosure, each element may be enlarged or reduced for the sake of clarity.
[0019] The disclosure is explained below with reference to the drawings to describe a vehicle light according to exemplary embodiments of the disclosure.
[0020] Fig. 1 and Fig. Figure 2 shows perspective views of a vehicle light according to an exemplary embodiment of the disclosure, and Fig. 3 and Fig. Figure 4 shows exploded perspective views of the vehicle light according to the exemplary embodiment of the disclosure. With reference to Fig. 1, Fig. 2, Fig. 3 to Fig. 4. A vehicle lamp 1 according to the exemplary embodiment of the disclosure can have a first image-generating part 100 and a second image-generating part 200.
[0021] The vehicle light 1 according to the exemplary embodiment of the disclosure can serve to inform nearby vehicles or pedestrians about a vehicle's driving status, e.g., as a daytime running light, position light, direction light, rear light, brake light, etc. However, the application is not limited to this, and the vehicle light 1 according to the exemplary embodiment of the disclosure can be used as any of the various lights installed in the vehicle. Furthermore, in the exemplary embodiment of the disclosure, the vehicle light 1 can be used for at least two purposes, and at least one part of a color property of an image produced by light emitted by the vehicle light 1 can be varied based on each purpose.
[0022] In particular, the color property of the image produced by the vehicle light 1 may include color, brightness and / or chroma, and a case in which at least one of the color properties of the image is varied based on the purpose of the vehicle light 1 may be understood as a case in which the color, brightness and / or chroma of at least one part of the image is varied.
[0023] The first image-generating element 100 can emit light incident from at least one first light source 300 to generate a first image. In the exemplary embodiment of the disclosure, the first image-generating element 100 can be an optical fiber configured to guide light incident on at least one incident surface 120, arranged on one side of a emitting surface 110 therein, such that the light is emitted to the emitting surface 110, or it can be an optical fiber body, e.g., a lens or the like. However, the disclosure is not limited thereto, and various types of optical components configured to emit the light incident from the at least one light source 300 to generate the first image can be used as the first image-generating element 100.
[0024] The first image-generating part 100 can have a first pattern part 130 configured to reflect light incident on the at least one incident surface 120 to the emitting surface 110, in order to be emitted through the emitting surface 110 onto a surface of it, and since the first image generated by the first image-generating part 100 is produced by the light reflected to the emitting surface 110 through the first pattern part 130, the first image can have a shape corresponding to the first pattern part 130.
[0025] Several first pattern parts 130 can be formed on a surface of the first image-generating part 100 in the exemplary embodiment of the disclosure, and although one of the several first pattern parts 130 is described below in the exemplary embodiment of the disclosure, other first pattern parts 130 can also be described identically.
[0026] Fig. Figure 5 is a schematic view of the first sample part according to the exemplary embodiment of the disclosure. With reference to Fig. 5. According to the exemplary embodiment of the disclosure, the first pattern part 130 can have at least one optical pattern 131 configured to reflect the light incident on the at least one incidence surface 120 to the emission surface 110. The at least one optical pattern 131 can be formed in one piece with the first image-generating part 100 by an injection molding process or separately from the first image-generating part 100 by surface treatment of the first image-generating part 100. However, the forming processes are not limited to these, and the at least one optical pattern 131 can also be applied to a surface of the first image-generating part 100 in film form.
[0027] In the exemplary embodiment of the disclosure, the at least one optical pattern 131 may have a concave shape with respect to a surface of the first image-generating part 100, but the disclosure is not limited thereto, and the at least one optical pattern 131 may have both a convex shape with respect to a surface of the first image-generating part 100 and various shapes that can reflect the light incident on the at least one incident surface 120 to the emitting surface 110.
[0028] The first pattern element 130 can enable the light to be reflected to the emitting surface 110 with different amounts of light based on a direction in which the at least one optical pattern 131 is formed, in order to vary the luminance of the first image produced by the first image-generating element 100. In particular, the at least one optical pattern 131 can be configured to extend in a predetermined direction, and the amount of light reflected to the emitting surface 110 by the first pattern element 130 can be varied based on an angle θ1 between a direction A1 of repeated elements of the at least one optical pattern 131 and an optical axis Ax1 of the at least one first light source 300.
[0029] For example, according to Table 1, in the case where the amount of light produced by the at least one first light source 300 is 126 lumens (lm), the amount of light reflected by the first pattern part 130 may decrease, and therefore the luminance of the first image produced by the light reflected by the first pattern part 130 to the emitting surface 110 may decrease if the angle θ1 between the direction of travel A1 of the repeated elements of the at least one optical pattern 131 and the optical axis Ax1 of the at least one first light source 300 decreases (e.g., deviates more from a right angle).Conversely, the amount of light reflected by the first pattern part 130 can increase, which is why the luminance of the first image produced by the light reflected to the emitting surface 110 by the first pattern part 130 can increase if the angle θ1 between the direction of travel A1 of the repeated elements of the at least one optical pattern 131 and the optical axis Ax1 of the at least one first light source 300 approaches a right angle more closely.
[0030] In other words, the amount of reflected light can be smallest when the orientation A1 of the repeated elements of the at least one optical pattern 131 and the optical axis Ax1 of the at least one first light source 300 are parallel to each other, and the amount of reflected light can be largest when the orientation A1 of the repeated elements of the at least one optical pattern 131 and the optical axis Ax1 of the at least one first light source 300 are perpendicular to each other. Table 1 Winkel (θ1) 0 10 20 30 40 50 60 70 80 90 Luminance (cd / m²) 2 ) 260 420 480 500 800 1720 2200 3000 4200 6000
[0031] In this case, the luminance of the first image, based on the angle θ1 between the orientation direction A1 of the repeated elements of the at least one optical pattern 131 and the optical axis Ax1 of the at least one first light source 300, is not limited to the values in Table 1 and can be varied based on the luminous flux of the at least one first light source 300, the transmittance of the first image-generating element 100, or similar factors. Thus, a color property, e.g., the brightness of the first image generated by the first image-generating element 100, can be varied across the angle θ1 between the orientation direction A1 of the repeated elements of the at least one optical pattern 131 and the optical axis Ax1 of the at least one first light source 300.
[0032] In the exemplary embodiment of the disclosure, several first pattern parts 130 can be arranged in a predetermined direction so that the at least one optical pattern 131 can have a shape similar to the first image. However, since this is merely an example for understanding the disclosure, the disclosure is not limited to this, and the number, length, direction of repeated elements, etc., of the at least one optical pattern 131 can be varied based on the shape, color, or other characteristics of the first image.
[0033] If, as previously described, the multiple optical patterns 131 are arranged in the predetermined direction, each of the optical patterns 131 can have a width P in the range of about 0.5 to about 2 mm in a direction in which the optical patterns 131 are arranged according to Fig. 6 are arranged because it is more difficult to produce each of the optical patterns 131 in a special shape via an injection molding process, surface treatment or the like when the width P is less than about 0.5 mm, and a degree to which the light is scattered decreases, increasing the possibility that the interior of the vehicle light 1 of the disclosure will be detected from the outside, which may impair an exterior design when the width P of each of the optical patterns 131 is greater than about 2 mm.
[0034] Furthermore, the at least one optical pattern 131 can be designed such that it has the shape of the circumference of a circle with a radius R of approximately 50 to 70% with respect to the width P. In other words, according to the previously described Fig. 6 in at least one optical pattern 131 a distance between two positions on the circumference that intersects a secant in the circle with radius R, having width P, and in this case R / P can be understood to be approximately 0.5 to 0.7.
[0035] The light reflected to the emissive surface 110 by the at least one optical pattern 131 can have different scattering angles as a result of the R / P value, and the at least one optical pattern 131 can have a larger scattering angle if the R / P value is small and the curvature is large. A case in which the scattering angle of the light reflected to the emissive surface 110 by the at least one optical pattern 131 is large can be understood as a case in which the first image can be recognized from a wider area, and the R / P value can be determined such that the light reflected to the emissive surface 110 can have a specific scattering angle in accordance with the purpose of the vehicle lamp 1 of the disclosure.
[0036] For example, according to Fig. 7. The at least one optical pattern 131 enables a light distribution with a scattering angle of 100° when the R / P value is 0.5, and can enable a light distribution with a scattering angle of 68° when the R / P value is 0.7. The scattering angle of the light reflected by the at least one optical pattern 131 is not limited to the Fig. 7 disclosed values are limited, and the scattering angle can be varied by the curvature, the R / P value, etc. of the at least one optical pattern 131.
[0037] Since the vehicle light 1 serves to provide information about the driving status of the vehicle in the exemplary embodiment of the disclosure, the at least one first light source 300 can produce essentially white light or essentially red light, and according to Fig. 8. The at least one first light source 300 can produce white light, whose color coordinates (x, y) belong to a range R1 of 0.310 ≤ x ≤ 0.500 and 0.283 ≤ y ≤ 0.440, or red light, whose color coordinates (x, y) belong to a range R2 of 0.645 ≤ x ≤ 0.735 and 0.259 ≤ y ≤ 0.335 with reference to the CIE 1931 color coordinate system. The light produced by the at least one first light source 300 is not to Fig. 8 limited, and the light belonging to different areas in the color coordinate system can be generated in accordance with the purpose of the vehicle lamp 1 of the disclosure.
[0038] If the white light is generated by at least one first light source 300, then according to Fig. 9. The at least one first light source 300 produces light with a color temperature in the range of approximately 2500 to approximately 6500 K, and the color characteristic of the first image can be varied based on the color temperature of the light produced by the at least one first light source 300. For example, since when using white light as the at least one first light source 300, light with a color temperature of approximately 2500 K provides a warm sensation like the color of a bulb lamp, and light with a color temperature of approximately 6500 K provides a cool sensation similar to daylight, the color characteristic of the first image can be varied by adjusting the color temperature of the light produced by the at least one first light source 300.
[0039] Furthermore, when generating red light from at least one first light source 300 according to Fig. 10. The at least one first light source 300 generates light with a wavelength in the range of approximately 610 to approximately 680 nm, and the color property of the first image can be varied based on the wavelength of the light generated by the at least one first light source 300. For example, since when using red light as the at least one first light source 300, light with a wavelength of approximately 617 nm has a red color and light with a wavelength of approximately 633 nm has a super-red (e.g., more saturated red) color, the color property of the first image can be varied by adjusting the wavelength of the light generated by the at least one first light source 300.
[0040] In the exemplary embodiment described above, the color property of the first image generated by the first image-generating part 100 can be varied by the color property of the light generated by the at least one first light source 300 and the orientation A1 of the repeated elements of the at least one optical pattern 131 of the first pattern part 130, but the disclosure is not limited thereto, and the color property of the first image can also be varied based on a color property of the first image-generating part 100, e.g., a color of the optical fiber body or the like. For example, if the first image-generating part 100 is a colored optical fiber body, the light incident from the at least one first light source 300 and reflected to the emitting surface 110 by the first pattern part 130 can generate the first image in which a color of the first image-generating part 100 is a mixed color.
[0041] With renewed reference to Fig. 1, Fig. 2, Fig. 3 to Fig. 4. The second image-generating part 200 can emit light incident from at least one second light source 400 to generate a second image. As with the first light-generating part 100 described above, a light guide body configured to emit light incident on at least one incident surface 220, located on one side of a emitting surface 210, to the emitting surface 210 by guiding the light from its interior, can be used as the second image-generating part 200.
[0042] The second image-generating part 200 can have a second pattern part 230 configured to emit light incident on the at least one incidence surface 220 to the emission surface 210 on a surface thereof, and the second image generated by the second image-generating part 200 can have a shape corresponding to the second pattern part 230. The light emitted by the second image-generating part 200 can pass through the first image-generating part 100 to generate the second image, and the second image-generating part 200 can thus be arranged behind (e.g., adjacent to) the first image-generating part 100.
[0043] In the exemplary embodiment of the disclosure, the fact that the second image-generating part 200 is arranged behind the first image-generating part 100 can be understood on the basis that, assuming the direction of the light emitted by the vehicle lamp 1 of the disclosure to be a forward direction, an actual direction specified by a forward direction and a reverse direction may be changed on the basis of an installation location, an installation direction, etc. of the vehicle lamp 1 of the disclosure.
[0044] The second image generated by the second image generation part 200 can be combined with the first image generated by the first image generation part 100 to form a predetermined pattern shape, and a three-dimensional effect can be applied to the pattern shape in accordance with the color properties of the first and second images, as will be described later.
[0045] In the exemplary embodiment of the disclosure, the first pattern part 130 and the second pattern part 230 can be configured such that they do not overlap in a perpendicular direction to the direction in which the light is emitted from the vehicle lamp 1 of the disclosure, so that the light reflected by the first pattern part 130 and the light reflected by the second pattern part 230 can each generate the first image and the second image. However, since this is only an example for understanding the disclosure, the disclosure is not limited to this, and the first pattern part 130 and the second pattern part 230 can be configured such that they overlap in a perpendicular direction to the direction in which the light is emitted from the vehicle lamp 1, depending on the pattern shape.
[0046] As with the first pattern part 130 described above, several second pattern parts 230 can be formed on a surface of the second image-generating part 200, and in this case, several pattern shapes can be formed by the first pattern part 130 and the second pattern part 230, corresponding to each other. Although an example of one of the several second pattern parts 230 in the exemplary embodiment of the disclosure is described below, other second pattern parts can be described identically.
[0047] The light emitted from the emission surface 210 of the second image-generating part 200 can pass through the first image-generating part 100 to generate the second image, which is why the emission surface 210 of the second image-generating part 200 can be arranged such that it points to a surface of the first image-generating part 100 in which the first pattern part 130 is formed.
[0048] For example, according to Fig. 11 Light L1, which is incident from the at least one first light source 300, is reflected to the emission surface 110 through the first pattern part 130 to produce the first image in the first image-generating part 100, and light L2, which is emitted to the emission surface 210, can pass through the first image-generating part 100 to produce the second image in the second image-generating part 200, which is located behind the first image-generating part 100.
[0049] In this case, the first image and the second image can be generated such that they have a specific distance based on an external viewing point, and the distance can be set by a distance between the first sample part 130 and the second sample part 230, which correspond to each other in a perpendicular direction to the direction in which light is emitted from the vehicle lamp 1 of the disclosure, and / or by a distance between the first image-generating part 100 and the second image-generating part 200 in the direction in which the light is emitted from the vehicle lamp 1 of the disclosure.
[0050] If the distance between the first pattern part 130 and the second pattern part 230 is too wide, or if the distance between the first image generation part 100 and the second image generation part 200 is too wide, the three-dimensional effect may be impaired because the distance between the first and second images, which are generated in the first and second image generation parts 100 and 200 respectively, becomes relatively wider depending on the external viewing position. Conversely, if the distance between the first pattern part 130 and the second pattern part 230, or the distance between the first image generation part 100 and the second image generation part 200, is too narrow, the first and second images may overlap, preventing the formation of a specific pattern shape depending on the external viewing position. In such cases, the distance may need to be adjusted.
[0051] In the exemplary embodiment of the disclosure, the first image-generating part 100 can be arranged such that it completely covers the radiating surface 210 of the second image-generating part 200, but the disclosure is not limited thereto, and the first image-generating part 100 can be arranged such that it covers at least a part of the radiating surface 210 of the second image-generating part 200.
[0052] The second pattern part 230 can have at least one optical pattern 231 configured to reflect the light incident on the at least one incidence surface 220 to the emission surface 210, and, like the first pattern part 130, can allow the light to be reflected to the emission surface 210 with different amounts of light based on a direction in which the at least one optical pattern 231 is formed in order to adjust the luminance of the second image generated by the second image-generating part 200.
[0053] In other words, the at least one optical pattern 231 can be designed such that it extends in a predetermined direction, and according to Fig. 12. The amount of light reflected by the second pattern part 230 to the emitting surface 210 can be varied based on angles θ2 and θ3 between orientation directions A2 and A3 of repeated elements of the at least one optical pattern 231 and an optical axis Ax2 of the at least one second light source 400. For example, as in the first pattern part 130, the amount of light reflected by the second pattern part 230 to the emitting surface 210 can decrease, thereby reducing the luminance of the second image, if the angles θ2 and θ3 between the orientation directions A2 and A3 of the repeated elements of the at least one optical pattern 231 and the optical axis Ax2 of the at least one second light source 400 decrease (e.g.,deviate from a right angle), and the amount of light reflected to the emitting surface 210 can increase, which can increase the luminance of the second image if the angles θ2 and θ3 between the orientation directions A2 and A3 of the repeated elements of the at least one optical pattern 231 and the optical axis Ax2 of the at least one second light source 400 approach a right angle more closely.
[0054] Consequently, a color property, e.g., brightness, of the second image can be varied across the angles θ2 and θ3 between the orientation directions A2 and A3 of the repeated elements of the at least one optical pattern 231 and the optical axis Ax2 of the at least one second light source 400. Unlike the first pattern part 130, in this case the second pattern part 230 can form angles θ2 and θ3 with the optical axis Ax2 of the at least one second light source 400, the values of which are greater than the angle formed by the first pattern part 130, since all orientation directions A1 of the repeated elements of the at least one optical pattern 131 are the same in the first pattern part 130, whereas the at least one optical pattern 231 has multiple orientation directions A2 and A3 in the second pattern part 230.
[0055] Therefore, if at least one optical pattern 231 of the second pattern part 230 has the multiple directions A2 and A3, the second image can have multiple color properties, and since in this case an effect can be achieved as in a case in which three images are generated, even if two images are generated by the first pattern part 130 and the second pattern part 230, more diverse pattern shapes can be realized.
[0056] In the exemplary embodiment of the disclosure, the at least one optical pattern 231 of the second pattern part 230 can have the multiple directions A2 and A3, but the disclosure is not limited thereto, and the at least one optical pattern 131 of the first pattern part 130 can have multiple directions.
[0057] In the exemplary embodiment of the disclosure, several optical patterns 231 can be arranged in a predetermined direction so that the second pattern part 230 can have a shape corresponding to the second image. However, since this is only an example for understanding the disclosure, the disclosure is not limited to this, and the number, length, direction of the repeated elements, etc., of the at least one optical pattern 231 can be varied based on the shape of the second image.
[0058] Additionally, the at least one optical pattern 231 of the second pattern part 230 can have a width in the range of about 0.5 to about 2 mm like the first pattern part 130 and can be designed in such a way that it has the shape of the circumference of a circle with a radius of about 50 to 70% with respect to the width.
[0059] Furthermore, like the previously described at least one first light source 300, the at least one second light source 400 can essentially produce white light whose color coordinates (x, y) belong to a range of 0.310 ≤ x ≤ 0.500 and 0.283 ≤ y ≤ 0.440, and can essentially produce red light whose color coordinates (x, y) belong to a range of 0.645 ≤ x ≤ 0.735 and 0.259 ≤ y ≤ 0.335 with respect to the CIE 1931 color coordinate system. Fig. 8 belong.
[0060] The first image generated by the first image-generating part 100 described above and the second image generated by the second image-generating part 200 can be combined to form a predetermined pattern shape. In this case, the three-dimensional effect can be applied to the pattern shape by varying the color properties of the first and second images. The color properties described above can include color, brightness, and chroma. Since, in the exemplary embodiment of the disclosure, the colors, brightness, and / or chroma of the first and second images differ, and the first and second images have different color properties, the depths of the first and second images can also differ to apply the three-dimensional effect to the pattern shape.
[0061] The following describes a case in which the three-dimensional effect is applied to the pattern shape by varying the color properties of the first image and the second image.
[0062] If the first image-generating part 100 and the second image-generating part 200 are each formed from a transparent material, the color properties of the first image and the second image can be modified based on the color properties of the light generated by the at least one first light source 300 and the at least one second light source 400, respectively. For example, if the area R1 in the previously described Fig. 9. White light belonging to the at least one first light source 300 and the at least one second light source 400 is generated, the light with a color temperature of approximately 2500 K is generated by the at least one first light source 300 and the light with a color temperature of approximately 6500 K is generated by the at least one second light source 400, because of the color difference between the first image and the second image, the pattern shape in which the first image and the second image are combined can have a three-dimensional effect.
[0063] Furthermore, if the area R2 is described above, then... Fig. 10. Red light belonging to the at least one first light source 300 and the at least one second light source 400 is generated, the light with a wavelength of about 617 nm is generated by the at least one first light source 300 and the light with a wavelength of about 633 nm is generated by the at least one second light source 400, because of the color difference between the first image and the second image, the pattern shape in which the first image and the second image are combined can have a three-dimensional effect.
[0064] In the exemplary embodiment described above, light with different color temperatures or different wavelengths can be generated by the at least one first light source 300 and the at least one second light source 400. However, the disclosure is not limited thereto, and since a brightness difference between the first image and the second image also occurs when the light generated by the at least one first light source 300 and the at least one second light source 400 has a difference in the amount of light, the pattern shape in which the first image and the second image are combined can have the three-dimensional effect.
[0065] Although, as previously described, the brightness of the first and second images may vary based on the amount of light produced by the at least one first light source 300 and the at least one second light source 400, it is not limited to this, and since the amount of light emitted by the first image-producing part 100 and second image-producing part 200 varies based on the orientation A1 of the repeated elements of the at least one optical pattern 131 of the first pattern part 130 and the orientations A2 and A3 of the repeated elements of the at least one optical pattern 231 of the second pattern part 230, even if the amount of light produced by the at least one first light source 300 and the at least one second light source 400 is the same, the first and second images may have different brightness.
[0066] Furthermore, in the exemplary embodiment described above, the first image-generating part 100 and the second image-generating part 200 can each be a transparent lens, and the color properties of the first image and the second image can be varied based on the color properties of the light generated by the at least one first light source 300 and the at least one second light source 400. However, the disclosure is not limited thereto, and the color properties of the first image and the second image can also be varied based on the color properties of the first image-generating part 100 and the second image-generating part 200.
[0067] For example, in the case where the first image-generating part 100 and the second image-generating part 200 have different colors, even if the light with the same wavelength or color temperature is generated by the at least one first light source 300 and the at least one second light source 400, due to the fact that the first image and the second image can have a color in which the colors of the first image-generating part 100 and the second image-generating part 200 are mixed, the pattern shape in which the first image and the second image are combined can have the three-dimensional effect.Since in this case the light emitted by the second image-generating part 200 passes through the first image-generating part 100 to generate the second image, the second image can have both the color of the second image-generating part 200 and the color in which the colors of the first image-generating part 100 and the second image-generating part 200 are mixed.
[0068] In the exemplary embodiment of the disclosure, the light generated by the at least one first light source 300 and the at least one second light source 400 can have different color properties, the light can be reflected by the first pattern part 130 and the second pattern part 230 with different amounts of light, and the first image-generating part 100 and the second image-generating part 200 can have the different color properties.However, since this is only an example for understanding the revelation, the revelation is not limited to it, and the color properties of the first image and the second image can be varied by a combination of the color properties of the light produced by the at least one first light source 300 and the at least one second light source 400, the amount of light reflected by the first pattern part 130 and the second pattern part 230, and / or the color properties of the first image-generating part 100 and the second image-generating part 200.
[0069] If, as described above, the color properties of the first image and the second image differ from each other, then according to Fig. 13. Because a part of a pattern shape S, in which a first image I1 and a second image I2 are mixed, has a color property that differs from that of another part, the depths of the first image I1 and the second image I2 become different from each other, allowing the pattern shape S, formed by the light emitted by the vehicle lamp 1 of the disclosure, to have a three-dimensional effect. In this case, the second image I2 can have several color properties in the manner described above. Fig. 13 have, since at least one optical pattern 231 of the second pattern part 230 in several directions A2 and A3 according to Fig. 12 is formed, and if at least one optical pattern 231 of the second pattern part 230 is formed in the same direction, the second image can generally have the same color property. The previously described Fig.Figure 13 is an example of a case where a difference between the color properties of the first image I1 and the second image I2 is shaded, and as previously described, it should be understood that at least one of the color properties of the pattern shape S, e.g., color, brightness, and chroma of the pattern shape S, may be varied.
[0070] Although furthermore, in the exemplary embodiment of the disclosure examples the first image-generating part 100 that generates the first image and the second image-generating part 200 that generates the second image are described, the disclosure is not limited thereto, and the number of image-generating parts may vary based on the number of images that form the pattern shape.
[0071] Additionally, in the exemplary embodiment described above, the at least one first light source 300 and the at least one second light source 400 can illuminate simultaneously to form a predetermined pattern shape in which the first image and the second image are blended. However, the disclosure is not limited to this, and in accordance with the purpose of the vehicle light 1 of the disclosure, the at least one first light source 300 and the at least one second light source 400 can illuminate alternately, or either the at least one first light source 300 or the at least one second light source 400 can illuminate.
[0072] For example, if the vehicle lamp 1 of the disclosure fulfills at least two purposes, the at least one first light source 300 or the at least one second light source 400 can shine in accordance with each purpose, thereby producing the first image or the second image, and in this case the first image can be understood as being produced for a first purpose, and the second image can be understood as being produced for a second purpose.
[0073] In the exemplary embodiment described above, the first image or the second image can be generated based on any purpose when the vehicle light 1 is used for at least two purposes, but the disclosure is not limited thereto, and the at least one first light source 300 and the at least one second light source 400 can illuminate successively and alternately to generate the first image and the second image alternately. For example, if the vehicle light 1 of the disclosure serves as a direction-of-travel light, the at least one first light source 300 and the at least one second light source 400 can illuminate successively and alternately to provide an enhanced visual effect.
[0074] Since, as previously described in the vehicle light 1 of the disclosure, the pattern shape in which the first image and the second image are combined can have the three-dimensional effect by varying the color characteristics of the first image and the second image, which are generated by the first image-generating part 100 and the second image-generating part 200, the pattern shape can more easily exhibit the three-dimensional effect without an additional configuration, thereby simplifying a configuration and improving the exterior design.
[0075] The previously described vehicle light of the disclosure achieves at least one of the effects set out below. Since a pattern shape with a three-dimensional effect can be realized through a combination of images with different color properties, configuration can be simplified and exterior design improved.
[0076] It should be noted that the effects of the disclosure are not limited to the effects mentioned above, and other effects of the disclosure will be clear to the person skilled in the art from descriptions in the claim.
[0077] It will be clear to those skilled in the art that the disclosure can be implemented in other specific forms without altering the underlying technical concept or the essential characteristics. Therefore, the embodiments described above are to be understood as examples and not as limitations. The scope of protection of the disclosure is specified in the claims and not in the detailed description, and all modifications or different forms derived from the means, scope of protection, and equivalents of the claims are to be interpreted as belonging to the scope of protection of the disclosure.
Claims
Vehicle light (1) comprising: a first image-generating part (100) configured to emit light incident from at least one first light source (300) to generate a first image (I1); and a second image-generating part (200) configured to emit light incident from at least one second light source (400) to generate a second image (I2) in combination with the first image (I1) to form a predetermined pattern shape (S), wherein the first and second image-generating parts (100, 200) are adapted such that the light emitted by the second image-generating part (200) passes through the first image-generating part (100) to generate the second image (I2), wherein the first image (I1) and the second image (I2) have different color properties, the color property comprising brightness, which is based on the amount of light reflected by the respective image-generating part (100, 200).wherein the first image-generating part (100) comprises a first pattern part (130) configured to reflect the light incident from the at least one first light source (300) to a first emitting surface (110) to generate the first image (I1) on a surface thereof, wherein the second image-generating part (200) comprises a second pattern part (230) configured to reflect the light incident from the at least one second light source (400) to a second emitting surface (210) to generate the second image (I2) on a surface thereof, wherein the first pattern part (130) and the second pattern part (230) each comprise at least one optical pattern (131, 231) with repeated elements extending in a predetermined direction (A1, A2, A3); wherein the at least one optical pattern (131) of the first pattern part (130) is arranged such thatthat it has a first angle (θ1) between the orientation of its elements and an optical axis (Ax1) of the at least one first light source (300) in order to reflect the light with a first quantity of light, and wherein the at least one optical pattern (231) of the second pattern part (230) is arranged such that it has a second angle (θ2, θ3) between the orientation of its elements and an optical axis (Ax2) of the at least one second light source (400) in order to reflect the light with a second quantity of light which is different from the first quantity of light. Vehicle light (1) according to claim 1, wherein the color property further comprises color and / or chroma. Vehicle lamp (1) according to claim 1 or 2, wherein a surface of the first image-generating part (100) in which the first pattern part (130) is formed is arranged such that it points towards the second emissive surface (210) of the second image-generating part (200). Vehicle light (1) according to one of claims 1 to 3, wherein a color property of the first image (I1) is varied in accordance with a color property of the at least one first light source (300), a color property of the first image-generating part (100) and / or the first amount of light reflected by the first pattern part (130). Vehicle light (1) according to one of claims 1 to 4, wherein a color property of the second image (I2) is varied in accordance with a color property of the at least one second light source (400), a color property of the first image-generating part (100), a color property of the second image-generating part (200) and / or the second amount of light reflected by the second pattern part (230). Vehicle light (1) according to one of claims 1 to 5, wherein the at least one optical pattern (131, 231) has a width of about 0.5 to 2 mm. Vehicle light (1) according to one of claims 1 to 6, wherein the at least one optical pattern (131, 231) has a shape of at least a part of a circumference of a circle with a radius (R) of about 50 to 70% of a width (P) of the at least one optical pattern (131, 231). Vehicle light (1) according to claim 7, wherein a scattering angle of light reflected by the at least one optical pattern (131, 231) is varied according to a ratio of the radius (R) to the width (P) of the at least one optical pattern (131, 231). Vehicle light (1) according to one of the preceding claims, wherein the at least one first light source (300) and the at least one second light source (400) are each configured to produce essentially white light whose color coordinates (x, y) in a color coordinate system lie in a range of 0.310 ≤ x ≤ 0.500 and 0.283 ≤ y ≤ 0.
440. Vehicle light (1) according to claim 9, wherein the at least one first light source (300) and the at least one second light source (400) are each configured to produce light with a color temperature in the range of about 2500 K to about 6500 K. Vehicle light (1) according to one of claims 1 to 8, wherein the at least one first light source (300) and the at least one second light source (400) are each configured to produce essentially red light whose color coordinates (x, y) in a color coordinate system lie in a range of 0.645 ≤ x ≤ 0.735 and 0.259 ≤ y ≤ 0.
335. Vehicle light (1) according to claim 11, wherein the at least one first light source (300) and the at least one second light source (400) are each configured to produce light with a wavelength in the range of about 610 nm to about 680 nm. Vehicle light (1) according to one of the preceding claims, wherein the pattern shape (S) has a first part and a second part based on the different color properties of the first image (I1) and the second image (I2), wherein the first and the second image (I1, I2) have different depths due to the different color properties, and wherein the different depths create a three-dimensional effect of the pattern shape (S).