A light pattern structure of a vehicle lamp and an optimization method

Abstract

The application discloses a light type optimization structure of a vehicle lamp, which comprises a lamp shell having a lamp inner space, a reflecting cup located in the lamp inner space and comprising an incoming light side and an outgoing light side, a lamp source located in the lamp inner space and corresponding to the incoming light side of the reflecting cup, and a columnar lens located in the lamp inner space and corresponding to the outgoing light side of the reflecting cup, wherein one side of the columnar lens has a plurality of convex columns extending upwards and downwards, and each convex column faces the outgoing light side; and when the lamp source emits light, the main bright area of the light type emitted from the outgoing light side of the reflecting cup presents an upper wide and lower narrow pattern.

Description

TECHNICAL FIELD

[0001] The present invention relates to a light type structure and optimization method of a bicycle lamp, in particular, to an optimization structure and optimization method capable of making the light type of the bicycle lamp more uniform and easier to meet safety standards. BACKGROUND

[0002] Compared with daytime, when moving at night due to the lack of light, lighting equipment is a very important configuration to facilitate clear observation of road conditions at night. Therefore, even if the bicycle is not equipped with a bicycle lamp when it is shipped, the rider will install a bicycle lamp to facilitate safe driving at night.

[0003] However, although the brighter and wider the illumination range of the bicycle lamp, the higher the safety of driving, the overly bright and wide illumination light will affect the oncoming vehicles and cause glare, affecting driving safety. Therefore, many countries have regulations on the low beam light area of the bicycle lamp. Among the more mainstream and authoritative specifications are K-mark (German regulations) and E-mark (European regulations). Bicycle lamp manufacturers will comply with the K-mark or E-mark specifications when designing the bicycle lamp to have a clear cut-off line of the low beam light type to reduce the impact on oncoming vehicles.

[0004] In common practice, the design of the reflector cup is changed to adjust the light type of the emitted light. However, compared with motor vehicles, the bicycle lamp is relatively small in size. With today's technology, the reflector cup of the bicycle lamp is difficult to accurately shape due to its small size, so that the light type of the known product is difficult to have a clear cut-off line of the low beam light type under the K-mark or E-mark specification.

[0005] In view of the foregoing, it can be seen that how to break through the limitations of the reflector cup manufacturing technology of the current bicycle lamp and produce an ideal light type is a problem that needs to be solved in the current industry. SUMMARY

[0006] The present invention uses a reflector cup to process the light emitted by the light source and emits a light type on the light-emitting side. The main bright area of the light type has the characteristics of being wide at the top and narrow at the bottom. The reflector cup is provided with a cylindrical lens on the light-emitting side. When the light emitted by the main bright area with the characteristics of being wide at the top and narrow at the bottom passes through the cylindrical lens, a light type with a clear and smooth cut-off line is formed and can meet the K-mark or E-mark specification. In this way, the problem of the known bicycle lamp with an undesirable light type is indeed improved.

[0007] To solve the above problems, the present application provides a light pattern structure of a vehicle lamp, which comprises: a lamp shell having a lamp inner space; a reflector cup located in the lamp inner space and comprising an entrance light side and an exit light side; a lamp source located in the lamp inner space and corresponding to the entrance light side of the reflector cup; and a columnar lens located in the lamp inner space and corresponding to the exit light side of the reflector cup, the columnar lens having a plurality of convex columns extending upward and downward, each convex column being directed toward the exit light side; wherein when the lamp source emits light, the light pattern emitted from the exit light side of the reflector cup has a main bright area showing a pattern of being wide at the top and narrow at the bottom.

[0008] Further, the reflector cup comprises a road surface light processing area, and the light emitted by the lamp source corresponds to the road surface light processing area.

[0009] Further, the lamp source comprises a high beam lamp, and the reflector cup comprises a high beam light processing area, and the high beam lamp corresponds to the high beam light processing area.

[0010] The present application also provides a light pattern optimization method of a vehicle lamp, which comprises the following steps: arranging a lamp source in a lamp shell and directing the lamp source toward an entrance light side of a reflector cup; the reflector cup comprising a lower narrow light processing area and an upper wide light processing area; when the lamp source emits light, the light emitted by the lamp source is processed by the lower narrow light processing area and the upper wide light processing area, and then is emitted from an exit light side of the reflector cup; at this time, the light pattern emitted from the exit light side has a main bright area showing a pattern of being wide at the top and narrow at the bottom; and arranging a columnar lens having a plurality of convex columns extending upward and downward, each convex column being directed toward the exit light side; when the light pattern having the main bright area showing the pattern of being wide at the top and narrow at the bottom passes through the columnar lens, the cutoff line of the light pattern is clearer and smoother. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is a three-dimensional schematic view of the reflector cup of the present application.

[0012] Figure 2 It is a three-dimensional schematic view of the relative position between the reflector cup and the columnar lens of the present application.

[0013] Figure 3 It is a schematic view of the area distribution of the reflector cup of the present application.

[0014] Figure 4 It is a schematic view of the light path of the present application.

[0015] Figure 5 It is a light pattern diagram of the light emitted from the exit light side of the reflector cup of the present application.

[0016] Figure 6 It is a light pattern diagram of the light emitted from the exit light side of the reflector cup of the present application after passing through the columnar lens.

[0017] Figure 7 It is a high beam light pattern diagram of the light emitted from the exit light side of the reflector cup of the present application.

[0018] Figure 8 High beam light pattern after the light from the light exit side of the reflector cup passes through the cylindrical lens.

[0019] Figure 9 Error design light pattern.

[0020] Symbol explanation:

[0021] 1 lamp housing

[0022] 11 lamp inner space

[0023] 2 reflector cup

[0024] 21 light entrance side

[0025] 22 light exit side

[0026] 23 light reflecting part

[0027] 231 lower narrow light processing area

[0028] 232 upper wide light processing area

[0029] 233 road surface light processing area

[0030] 234 far light processing area

[0031] 3 light source

[0032] 31 low beam light part

[0033] 32 high beam light part

[0034] 4 cylindrical lens

[0035] 41 convex column

[0036] A main bright area

[0037] E1 brightest point

[0038] E2 brightest point

[0039] S1 area

[0040] S2 area

[0041] S3 area DETAILED DESCRIPTION

[0042] For a more detailed understanding of the embodiments of the application, please also view the accompanying drawings, such as Figures 1 to 6The present invention is a vehicle light beam structure comprising: a lamp housing 1 having an inner space 11; a reflector 2 located in the inner space 11 and including a light entrance side 21 and a light exit side 21; a light source 3 located in the inner space 11 and corresponding to the light entrance side 21 of the reflector 2; and a cylindrical lens 4 located in the inner space 11 and corresponding to the light entrance side 21 of the reflector 2. One surface of the cylindrical lens 4 has a plurality of vertically extending protrusions 41, each protrusion facing the light entrance side 21. When the light source 3 emits light, the light pattern emitted from the light entrance side 21 of the reflector 2 exhibits a main bright area A that is wider at the top and narrower at the bottom.

[0043] The power source of the light source 3 of the present invention can be a power storage device built into the lamp housing 1, such as a battery or a rechargeable battery, or the light source 3 can be connected to an external power source via a wire to obtain power.

[0044] The reflective cup 2 can be replaced by an optical component such as a mirror or a lens that can change the path of light by refraction or reflection.

[0045] The above content is followed to further describe the embodiments of the present invention. Figure 4 As shown, the light source 3 in the lamp housing 1 faces the light incident side 21 of the reflector cup 2, and the reflective portion 23 of the reflector cup 2 is as shown in FIG. Figure 3 As shown, it is divided into ten blocks, among which L5 and R5 far away from the light source 3 belong to the upper wide light processing area 232, which is used to process the light type of the wider bright area above. L1, R1, L4, and R4 belong to the lower narrow light processing area 231, which is used to process the light type of the narrow bright area below. When the light source 3 emits light, the light entering the light incident side 21 will be processed by the lower narrow light processing area 231 and the upper wide light processing area 232 and then emitted from the light emitting side 22 of the reflector cup 2. At this time, the light type emitted from the light emitting side 22 will be as follows Figure 5 As shown, the direct light that has not passed through the cylindrical lens 4 has a main bright area A that is wide at the top and narrow at the bottom. The present invention also configures a cylindrical lens 4 with a plurality of protrusions 41 extending vertically, and each protrusion 41 is facing the light-emitting side 22. When the light that has a main bright area A that is wide at the top and narrow at the bottom passes through the cylindrical lens 4, it will be as shown. Figure 6 As shown, the cut-off line is clearer and smoother and can meet the standards of K-mark or E-mark. The present invention is indeed novel and progressive.

[0046] Other Figure 3 Among them, L2 and R2 belong to the road lighting processing area 233, which is used to process road lighting to improve road brightness. L3 and R3 belong to the high beam processing area 234, which is used to process high beam. The actual light type can be referred to the figure. Figure 7 、 Figure 8 .

[0047] Further detailsFigure 4 As shown, this is a simple schematic diagram of the light path, in which the light path reflected by the area S3 corresponding to the low beam member 31 is the road surface light, the light path reflected by the area S1 corresponding to the low beam member 31 is the main bright area light, and the light path reflected by the area S2 corresponding to the high beam member 32 is the far distance light.

[0048] In the present application, the light emitted from the light-emitting side 22 of the reflector cup 2 has a main bright area A that is wide at the top and narrow at the bottom, which is quite necessary, because compared with Figure 5 , Figure 6 It can be found that when the main bright area A is wide at the top and narrow at the bottom, the brightest point E1 will be further close to the cutoff line after the processing of the cylindrical lens 4, which is the most excellent result for the car light. However, if the main bright area is designed to be narrow at the top and wide at the bottom, it will be as shown (the left side is not processed by the cylindrical lens, and the right side is processed by the cylindrical lens), and it can be obviously seen that the brightest point E2 will be far away from the cutoff line after the processing of the cylindrical lens, which is a bad phenomenon for the car light. Figure 9

[0049] The light pattern shown in the present application is the picture of the front wall irradiated by the present application, and the present application is ten meters away from the aforementioned wall.

[0050] The above is only used to explain the preferred embodiments of the present application, and is not intended to limit the present application in any form. Therefore, any modification or change related to the present application made under the same inventive spirit should be included in the scope intended to be protected by the present application.​

Claims

1. A headlight emitting structure, characterized in that: It includes: a lamp housing having an inner lamp space; A reflector cup is located in the space inside the lamp and includes a light incident side and a light emitting side. The reflector cup has a reflective portion including a lower narrow light processing area and an upper wide light processing area. a light source located in the space within the lamp and corresponding to the light incident side of the reflector cup, wherein the light emitted by the light source corresponds to the aforementioned lower narrow light processing area and upper wide light processing area; and a cylindrical lens located in the space inside the lamp and corresponding to the light-emitting side of the reflector cup, wherein one side of the cylindrical lens has a plurality of vertically extending protrusions, each protrusion facing the light-emitting side; When the light source emits light, the light pattern emitted from the light-emitting side of the reflector cup has a main bright area that is wide at the top and narrow at the bottom.

2. The vehicle light beam structure according to claim 1, wherein: The reflective portion includes a road surface lighting treatment area, and the light emitting portion of the light source corresponds to the aforementioned road surface lighting treatment area.

3. The vehicle light beam structure according to claim 1, wherein: The light source includes a high-beam lamp component, wherein the reflective portion includes a high-beam processing area, and the high-beam lamp component corresponds to the high-beam processing area.

4. A method for optimizing vehicle light profile, characterized by: The method comprises the following steps: a light source is positioned within a lamp housing toward the light incident side of a reflector cup, and the reflector cup includes a lower narrow light processing area and an upper wide light processing area. When the light source emits light, the light incident on the light incident side is processed by the lower narrow light processing area and the upper wide light processing area before being emitted from the light exit side of the reflector cup. At this time, the light pattern emitted from the light exit side has a main bright area that is wide at the top and narrow at the bottom. A cylindrical lens having a plurality of vertically extending convex columns is also disposed, with each convex column facing the light exit side. When the light having the main bright area that is wide at the top and narrow at the bottom passes through the cylindrical lens, its cutoff line becomes clearer and smoother, and the brightest point approaches the cutoff line.

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