A signal lens

Abstract

The present application relates to the technical field of vehicle signal lamp, especially to a vehicle signal lamp lens. The vehicle signal lamp lens comprises a lens outer surface and a lens inner surface. The lens outer surface is a smooth surface. The lens inner surface comprises a polygonal lens and a fan-shaped lens group. The polygonal lens is located in the central region of the lens inner surface. The center point of the fan-shaped lens group coincides with the center point of the polygonal lens. The fan-shaped lens group is spliced with each side of the polygonal lens. The fan-shaped lens group comprises a plurality of different radian tooth patterns. The lens outer surface is a smooth surface, which is convenient for processing and manufacturing and easy to clean. The lens inner surface adopts a certain rule to arrange different tooth patterns to form the fan-shaped lens group, which reduces the complexity of design and is convenient for mold processing and manufacturing. The angle of each tooth pattern is accurately designed to realize accurate control of the light emitted by the light source and improve the utilization efficiency of light.

Description

Technical Field

[0001] This invention relates to the field of traffic light technology, and more particularly to a traffic light lens. Background Technology

[0002] Most automotive signal lights on the market today are designed with an optical structure consisting of a light source, a focusing lens, and a light-distributing lens. Usually, at least two lenses are needed to achieve the light distribution effect. Existing signal light lenses have low luminous efficiency, complex optical structures, and high costs.

[0003] Therefore, a new signal light lens is needed to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a vehicle signal light that only requires one lens and only needs an optical structure on the inner surface of the lens to meet the light intensity requirements of vehicle signal light regulations.

[0005] To achieve the above objectives, the present invention provides a signal light lens for vehicle illumination, characterized in that it comprises:

[0006] The outer surface of the lens is a smooth surface.

[0007] The inner surface of the lens includes polygonal lenses and fan-shaped lens groups;

[0008] The polygonal lens is located in the central region of the inner surface of the lens;

[0009] The center point of the fan-shaped lens group coincides with the center point of the polygonal lens, and each side of the fan-shaped lens group and the polygonal lens are spliced ​​together.

[0010] The fan-shaped lens group includes multiple tooth patterns with different curvatures.

[0011] Furthermore, the multiple teeth with different curvatures, from the inside out, include a first tooth, a second tooth, a third tooth, a fourth tooth, a fifth tooth, a sixth tooth, a seventh tooth, and an eighth tooth.

[0012] The first tooth pattern includes a first arc surface and a second arc surface;

[0013] The angle between the first arc surface and the outer surface of the lens is in the range of 30° to 35°, and the angle between the second arc surface and the outer surface of the lens is in the range of 65° to 75°.

[0014] The second tooth pattern includes a third arc surface and a fourth arc surface;

[0015] The angle between the third arc surface and the outer surface of the lens is in the range of 55° to 65°, and the angle between the fourth arc surface and the outer surface of the lens is in the range of 65° to 75°.

[0016] The third tooth pattern includes a fifth arc surface and a sixth arc surface;

[0017] The angle between the fifth arc surface and the outer surface of the lens is in the range of 65° to 75°, and the angle between the sixth arc surface and the outer surface of the lens is in the range of 65° to 75°.

[0018] The fourth tooth pattern includes a seventh arc surface and an eighth arc surface;

[0019] The angle between the seventh arc surface and the outer surface of the lens ranges from 88° to 89°, and the angle between the eighth arc surface and the outer surface of the lens ranges from 28° to 33°.

[0020] The fifth tooth pattern includes a ninth arc surface and a tenth arc surface;

[0021] The angle between the ninth arc surface and the outer surface of the lens is in the range of 55° to 65°, and the angle between the tenth arc surface and the outer surface of the lens is in the range of 60° to 65°.

[0022] The sixth tooth pattern includes an eleventh arc surface and a twelfth arc surface;

[0023] The angle between the eleventh arc surface and the outer surface of the lens is in the range of 55° to 65°, and the angle between the twelfth arc surface and the outer surface of the lens is in the range of 55° to 65°.

[0024] The seventh tooth pattern includes a thirteenth arc surface and a fourteenth arc surface;

[0025] The angle between the thirteenth arc surface and the outer surface of the lens ranges from 43° to 46°, and the angle between the fourteenth arc surface and the outer surface of the lens ranges from 65° to 70°.

[0026] The eighth tooth pattern includes the fifteenth arc surface and the sixteenth arc surface;

[0027] The angle between the fifteenth arc surface and the outer surface of the lens ranges from 11° to 15°, and the angle between the sixteenth arc surface and the outer surface of the lens ranges from 28° to 32°.

[0028] Furthermore, the fan-shaped lens group includes two first lens groups, a second lens, and a third lens;

[0029] The two first lens groups are arranged in a radial mirror image along the polygonal lens;

[0030] One end of each of the first lens groups is spliced ​​with the second lens, and the other end of each of the first lens groups is spliced ​​with the third lens.

[0031] Furthermore, the first lens group comprises three single lenses joined together;

[0032] Each of the single lenses is fan-shaped, and the apex angle of the single lens ranges from 25° to 30°.

[0033] Furthermore, the single lens includes one first toothed groove, two second toothed grooves, and one third toothed groove;

[0034] When the signal light lens is vertically mounted on the vehicle, the single lens is used to refract the light emitted by the light source into a spatial solid angle of 10 degrees above, 10 degrees below, 15 degrees to the left, and 15 degrees to the right relative to the center line of the signal light lens.

[0035] Furthermore, both the second lens and the third lens are fan-shaped, and the apex angle of both the second lens and the third lens is in the range of 35 to 40°.

[0036] Furthermore, the second lens includes a fourth tooth, a fifth tooth, and a sixth tooth;

[0037] When the signal light lens is vertically mounted on the vehicle, the second lens is used to refract the light emitted by the light source into a spatial solid angle of 15° above, 15° below, 10° to the left, and 45° to the right relative to the center line of the signal light lens.

[0038] Furthermore, the third lens includes a fifth tooth, a seventh tooth, and an eighth tooth;

[0039] When the signal light lens is vertically mounted on the vehicle, the third lens is used to refract the light emitted by the light source into a spatial solid angle of 15° above, 15° below, 80° to the left, and 10° to the right relative to the center line of the signal light lens.

[0040] Furthermore, the minimum tooth height of the tooth pattern is 2mm to 2.5mm, and the tooth height does not exceed 50% of the thickness of the signal light lens.

[0041] Furthermore, the outer contour diameter of the inner surface of the lens is no greater than 16mm, and the focal length of the signal light lens is no greater than 8mm.

[0042] The outer surface of the signal light lens proposed in this invention is smooth, which is easy to process and manufacture, and the surface is easy to clean. Its inner surface is composed of a fan-shaped lens group with different teeth arranged in a certain regular pattern (in a row or rotated), which reduces the complexity of the design and facilitates the processing and manufacturing of the mold. Each tooth is responsible for refracting or reflecting the light emitted by the light source into the area specified by the signal light regulations. By arranging different teeth in a certain regular pattern, the entire lens can meet the light distribution pattern and light intensity requirements of each signal light regulation. Attached Figure Description

[0043] Figure 1 A front view of a signal light lens in a preferred embodiment of the present invention.

[0044] Figure 2 A partial cross-sectional view of the signal light lens in a preferred embodiment of the present invention;

[0045] Figure 3 In a preferred embodiment of the present invention, a front view of the lens structure on the inner surface of the signal light lens is shown. Detailed Implementation

[0046] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0047] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0048] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the scope of the invention.

[0049] In a preferred embodiment of the invention, such as Figures 1 to 3 As shown, a signal light lens for vehicle lighting is proposed, specifically including:

[0050] Lens outer surface 1, lens outer surface 1 is a smooth surface;

[0051] The inner surface 2 of the lens includes a polygonal lens 201 and a fan-shaped lens group;

[0052] The polygonal lens 201 is located in the central region of the inner surface 2 of the lens;

[0053] The center point of the fan-shaped lens group coincides with the center point of the polygonal lens 201, and each side of the fan-shaped lens group and the polygonal lens 201 are spliced ​​together.

[0054] The fan-shaped lens group includes multiple teeth with different curvatures.

[0055] Specifically, in this embodiment, the outer surface of the signal light lens is a smooth surface, and the inner surface 2 of the lens is provided with a number of raised arc-shaped teeth. Each tooth is responsible for refracting or reflecting the light emitted by the light source into the area specified by the signal light regulations. By arranging (aligning or rotating) different teeth in a certain regular pattern, the entire lens can meet the light distribution pattern and light intensity requirements of each signal light regulation.

[0056] In this embodiment, the minimum tooth height of the tooth pattern is 2mm to 2.5mm, and the tooth height does not exceed 50% of the thickness of the signal light lens.

[0057] In this embodiment, the outer contour diameter of the inner surface 2 of the lens is no greater than 16mm, and the focal length of the signal light lens is no greater than 8mm.

[0058] In this embodiment, the inner surface 2 of the lens is composed of different tooth patterns to form a fan-shaped lens group, which reduces the complexity of the design, facilitates the processing and manufacturing of the mold, and allows the entire lens to meet the light distribution pattern and light intensity requirements of various traffic light regulations.

[0059] In a preferred embodiment of the present invention, the fan-shaped lens group in the signal light lens includes multiple teeth with different curvatures, and the teeth, from the inside to the outside, include a first tooth, a second tooth, a third tooth, a fourth tooth, a fifth tooth, a sixth tooth, a seventh tooth, and an eighth tooth.

[0060] The first tooth pattern includes a first arc surface and a second arc surface;

[0061] The angle between the first arc surface and the outer surface 1 of the lens is in the range of 30° to 35°, and the angle between the second arc surface and the outer surface 1 of the lens is in the range of 65° to 75°.

[0062] The second tooth pattern includes a third arc surface and a fourth arc surface;

[0063] The angle between the third arc surface and the outer surface 1 of the lens is in the range of 55° to 65°, and the angle between the fourth arc surface and the outer surface 1 of the lens is in the range of 65° to 75°.

[0064] The third tooth pattern includes the fifth and sixth arc surfaces;

[0065] The angle between the fifth arc surface and the outer surface 1 of the lens is in the range of 65° to 75°, and the angle between the sixth arc surface and the outer surface 1 of the lens is in the range of 65° to 75°.

[0066] The fourth tooth pattern includes the seventh and eighth arc surfaces;

[0067] The angle between the seventh arc surface and the outer surface 1 of the lens ranges from 88° to 89°, and the angle between the eighth arc surface and the outer surface 1 of the lens ranges from 28° to 33°.

[0068] The fifth tooth pattern includes the ninth and tenth arc surfaces;

[0069] The angle between the ninth arc surface and the outer surface 1 of the lens ranges from 55° to 65°, and the angle between the tenth arc surface and the outer surface 1 of the lens ranges from 60° to 65°.

[0070] The sixth tooth pattern includes the eleventh and twelfth arc surfaces;

[0071] The angle between the eleventh arc surface and the outer surface 1 of the lens is in the range of 55° to 65°, and the angle between the twelfth arc surface and the outer surface 1 of the lens is in the range of 55° to 65°.

[0072] The seventh tooth pattern includes the thirteenth and fourteenth arc surfaces;

[0073] The angle between the thirteenth arc surface and the outer surface 1 of the lens ranges from 43° to 46°, and the angle between the fourteenth arc surface and the outer surface 1 of the lens ranges from 65° to 70°.

[0074] The eighth tooth pattern includes the fifteenth and sixteenth arc surfaces;

[0075] The angle between the fifteenth arc surface and the outer surface 1 of the lens ranges from 11° to 15°, and the angle between the sixteenth arc surface and the outer surface 1 of the lens ranges from 28° to 32°.

[0076] Specifically, such as Figure 3 As shown, in this embodiment, the fan-shaped lens group includes two first lens groups 202, a second lens 203, and a third lens 204;

[0077] The two first lens groups 202 are arranged in a radial mirror image along the polygonal lens 201;

[0078] One end of each first lens group 202 is spliced ​​with the second lens 203, and the other end of each first lens group 202 is spliced ​​with the third lens 204.

[0079] In this embodiment, the first lens group 202 includes three single lenses spliced ​​together;

[0080] Each individual lens is fan-shaped, and the apex angle of each lens ranges from 25° to 30°.

[0081] In this embodiment, the first lens group 202 is composed of a first single lens, a second single lens, and a third single lens. All three are the same lens group. The second single lens is a copy of the first single lens by rotating it clockwise by 25° to 30° around the center point O (the center point of the polygonal lens 201), for example, 25°. Similarly, the third single lens is a copy of the second single lens by rotating it clockwise by 25° to 30° around the center point O (the center point of the polygonal lens 201), for example, 25°.

[0082] In this embodiment, a light source and circuit board (typically 0.2mm to 1.6mm thick) can be added to a single lens in the signal light lens to form a module unit. The overall size of the module unit can be controlled within the range of 16mm wide, 16mm long, and 12mm high. In practical applications, this module unit can be replicated according to the shape of the lamp and then 3D arranged. The optical axis of each module unit is parallel to the main optical axis of the vehicle lamp. The light emitted by all replicated module units can be uniformly superimposed, which reduces the internal volume of the vehicle lamp, increases the freedom of the 3D shape of the vehicle lamp, and meets the regulatory light intensity requirements of vehicle signal lights.

[0083] In this embodiment, the two first lens groups 202 are arranged in a radial mirror image along the polygonal lens 201, and the upper and lower first lens groups 202 are arranged symmetrically. The angle at which the light emitted by the light source is refracted in the solid angle of the space is also the same. Therefore, the manufacturing process and manufacturing cost can be reduced during the manufacturing process.

[0084] In this embodiment, the single lens includes a first toothed groove, two second toothed grooves, and a third toothed groove;

[0085] When the signal light lens is installed vertically on a vehicle, the single lens is used to refract the light emitted by the light source into a spatial solid angle of 10 degrees above, 10 degrees below, 15 degrees to the left, and 15 degrees to the right relative to the center line of the signal light lens.

[0086] In this embodiment, both the second lens 203 and the third lens 204 are fan-shaped, and the apex angle range of both the second lens 203 and the third lens 204 is 35 to 40°.

[0087] In this embodiment, the second lens 203 includes a fourth tooth, a fifth tooth, and a sixth tooth;

[0088] When the signal light lens is vertically mounted on the vehicle, the second lens 203 is used to refract the light emitted by the light source into a spatial solid angle of 15° above, 15° below, 10° to the left, and 45° to the right relative to the center line of the signal light lens.

[0089] In this embodiment, the third lens 204 includes a fifth tooth, a seventh tooth, and an eighth tooth;

[0090] When the signal light lens is installed vertically on the vehicle, the third lens 204 is used to refract the light emitted by the light source into a spatial solid angle of 15° above, 15° below, 80° to the left, and 10° to the right relative to the center line of the signal light lens.

[0091] In this embodiment, the focal point of each tooth is located at the light source point. Each tooth group collects the light emitted by the light source and precisely refracts or reflects it to a certain area required by regulations of the traffic light. At the same time, the light patterns of each light-emitting area can be precisely spliced ​​together to form the light pattern required by the regulations of the entire traffic light. Since the angles on each tooth are precisely designed, the brightness of the spliced ​​light pattern is uniformly transitioned, with no dark areas and no bright areas. This achieves precise control of the light emitted by the light source and improves the light utilization efficiency.

[0092] The outer surface of the signal light lens proposed in this invention is smooth, which is easy to process and manufacture, and the surface is easy to clean. Its inner surface is composed of a fan-shaped lens group with different teeth arranged in a certain regular pattern (in a row or rotated), which reduces the complexity of the design and facilitates the processing and manufacturing of the mold. Each tooth is responsible for refracting or reflecting the light emitted by the light source into the area specified by the signal light regulations. By arranging different teeth in a certain regular pattern, the entire lens can meet the light distribution pattern and light intensity requirements of each signal light regulation.

[0093] The above description is merely a preferred embodiment of the present invention and does not limit the implementation and protection scope of the present invention. Those skilled in the art should realize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present invention should be included within the protection scope of the present invention.

Claims

1. A signal light lens for vehicle lighting, characterized in that, include: The outer surface of the lens is a smooth surface. The inner surface of the lens includes polygonal lenses and fan-shaped lens groups; The polygonal lens is located in the central region of the inner surface of the lens; The center point of the fan-shaped lens group coincides with the center point of the polygonal lens, and each side of the fan-shaped lens group and the polygonal lens are spliced ​​together. The fan-shaped lens group includes multiple tooth patterns with different curvatures.

2. The signal light lens according to claim 1, characterized in that, The multiple teeth with different curvatures, from the inside out, include the first tooth, the second tooth, the third tooth, the fourth tooth, the fifth tooth, the sixth tooth, the seventh tooth, and the eighth tooth: The first tooth pattern includes a first arc surface and a second arc surface; The angle between the first arc surface and the outer surface of the lens is in the range of 30° to 35°, and the angle between the second arc surface and the outer surface of the lens is in the range of 65° to 75°. The second tooth pattern includes a third arc surface and a fourth arc surface; The angle between the third arc surface and the outer surface of the lens is in the range of 55° to 65°, and the angle between the fourth arc surface and the outer surface of the lens is in the range of 65° to 75°. The third tooth pattern includes a fifth arc surface and a sixth arc surface; The angle between the fifth arc surface and the outer surface of the lens is in the range of 65° to 75°, and the angle between the sixth arc surface and the outer surface of the lens is in the range of 65° to 75°. The fourth tooth pattern includes a seventh arc surface and an eighth arc surface; The angle between the seventh arc surface and the outer surface of the lens ranges from 88° to 89°, and the angle between the eighth arc surface and the outer surface of the lens ranges from 28° to 33°. The fifth tooth pattern includes a ninth arc surface and a tenth arc surface; The angle between the ninth arc surface and the outer surface of the lens is in the range of 55° to 65°, and the angle between the tenth arc surface and the outer surface of the lens is in the range of 60° to 65°. The sixth tooth pattern includes an eleventh arc surface and a twelfth arc surface; The angle between the eleventh arc surface and the outer surface of the lens is in the range of 55° to 65°, and the angle between the twelfth arc surface and the outer surface of the lens is in the range of 55° to 65°. The seventh tooth pattern includes a thirteenth arc surface and a fourteenth arc surface; The angle between the thirteenth arc surface and the outer surface of the lens ranges from 43° to 46°, and the angle between the fourteenth arc surface and the outer surface of the lens ranges from 65° to 70°. The eighth tooth pattern includes the fifteenth arc surface and the sixteenth arc surface; The angle between the fifteenth arc surface and the outer surface of the lens ranges from 11° to 15°, and the angle between the sixteenth arc surface and the outer surface of the lens ranges from 28° to 32°.

3. The signal light lens according to claim 2, characterized in that, The fan-shaped lens group includes two first lens groups, a second lens, and a third lens; The two first lens groups are arranged in a radial mirror image along the polygonal lens; One end of each of the first lens groups is spliced ​​with the second lens, and the other end of each of the first lens groups is spliced ​​with the third lens.

4. The signal light lens according to claim 3, characterized in that, The first lens group comprises three single lenses joined together; Each of the single lenses is fan-shaped, and the apex angle of the single lens ranges from 25° to 30°.

5. The signal light lens according to claim 4, characterized in that, The single lens includes one first toothed groove, two second toothed grooves, and one third toothed groove; When the signal light lens is vertically mounted on the vehicle, the single lens is used to refract the light emitted by the light source into a spatial solid angle of 10 degrees above, 10 degrees below, 15 degrees to the left, and 15 degrees to the right relative to the center line of the signal light lens.

6. The signal light lens according to claim 3, characterized in that, Both the second lens and the third lens are fan-shaped, and the apex angle of both the second lens and the third lens is in the range of 35 to 40°.

7. The signal light lens according to claim 6, characterized in that, The second lens includes a fourth tooth, a fifth tooth, and a sixth tooth; When the signal light lens is vertically mounted on the vehicle, the second lens is used to refract the light emitted by the light source into a spatial solid angle of 15° above, 15° below, 10° to the left, and 45° to the right relative to the center line of the signal light lens.

8. The signal light lens according to claim 6, characterized in that, The third lens includes a fifth tooth, a seventh tooth, and an eighth tooth; When the signal light lens is vertically mounted on the vehicle, the third lens is used to refract the light emitted by the light source into a spatial solid angle of 15° above, 15° below, 80° to the left, and 10° to the right relative to the center line of the signal light lens.

9. The signal light lens according to claim 1, characterized in that, The tooth height of the tooth pattern is at least 2mm to 2.5mm, and the tooth height does not exceed 50% of the thickness of the signal light lens.

10. The signal light lens according to claim 1, characterized in that, The outer contour diameter of the inner surface of the lens is no greater than 16mm, and the focal length of the signal light lens is no greater than 8mm.

Images