Optical system with random-angle emergent light and automobile signal lamp

Abstract

The utility model provides an optical system with random angle emergent light and an automobile signal lamp, which comprises an optical piece, an LED light source and a reflective bowl, a random pattern surface is arranged on the inner surface or the outer surface of the optical piece, a plurality of light emergent surfaces with random heights and random angles are distributed on the random pattern surface, and the light emergent surfaces are arranged on the outer surface of the optical piece. The light source is used for forming emergent light in multiple random directions. According to the utility model, the structure is simple, the random pattern surface with the light emergent surfaces with random heights and random angles is arranged on the surface of the inner lens, and each light emergent surface corresponds to a specific emergent light, so that a plurality of emergent lights in random directions are formed, and the random lightening effect similar to diamonds is realized while the light distribution requirement is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile headlight optical systems, in particular to an optical system with light emitted at random angles and an automobile signal light. Background Art

[0002] Cars or motor vehicles are usually equipped with signal lights at specific locations such as the rear or front of the vehicle. The signal lights are turned on during daytime driving or turning to alert pedestrians or vehicles around the vehicle and ensure safe driving of the vehicle.

[0003] With the development of automotive lighting technology, more requirements are being placed on the lighting functionality of automotive lamps. Most existing signal lights have relatively single functions and can only achieve a uniform lighting effect, but cannot achieve a lighting effect with random light emission directions similar to stardust or diamonds. Therefore, it is necessary to provide a signal light that can not only meet the lighting requirements but also achieve a random angle emission effect similar to stardust or diamonds. Utility Model Content

[0004] In view of the defects in the prior art, the purpose of the present invention is to provide an optical system and a car signal light with light emitted at random angles.

[0005] The optical system with random-angle emitting light provided by the utility model comprises an optical component and an LED light source, wherein the optical component is used to emit light emitted by the LED light source;

[0006] The inner surface or the outer surface of the optical component is provided with a random pattern surface, and a plurality of light emitting surfaces with random heights and random angles are distributed on the random pattern surface, so as to form a plurality of light emitting light rays in random directions.

[0007] Preferably, the optical component comprises an inner mirror, the inner surface of the inner mirror is provided with a random patterned surface, and the outer surface of the inner mirror is a smooth surface.

[0008] Preferably, the interior mirror comprises a first interior mirror, the thickness d of the first interior mirror is ≤10 mm, the inner surface of the first interior mirror is provided with a random patterned surface, and the outer surface of the first interior mirror is a smooth surface.

[0009] Preferably, the optical component includes an inner lens, the outer surface of the inner lens is provided with a random pattern surface, and the outer surface of the inner lens is provided with a regular pattern surface.

[0010] Preferably, the interior mirror includes a second interior mirror, the thickness D of the second interior mirror is greater than 10 mm, and a regular patterned surface is provided on the inner surface of the second interior mirror;

[0011] A random pattern surface is provided on the outer surface of the second interior mirror, and a plurality of step structures are distributed in an array on the regular pattern surface, and the light incident surface of the step structure is perpendicular to the incident light.

[0012] Preferably, a plurality of triangular pyramid-shaped light emitting structures are distributed on the random pattern surface, the bases of adjacent triangular pyramid-shaped light emitting structures overlap, and the side surfaces of the triangular pyramid-shaped light emitting structures form light emitting surfaces;

[0013] The height, side surface and bottom surface angles of the triangular pyramid light emitting structure are randomly set.

[0014] Preferably, among the multiple light emitting surfaces on the random patterned surface, each light emitting surface is a plane, and a folded surface is formed between adjacent light emitting surfaces;

[0015] The angle between the light emitting surface and the inner surface or outer surface of the endoscope is an obtuse angle.

[0016] Preferably, it further comprises a reflective bowl, which is used to reflect the light emitted by the LED light source. The reflective bowl is arranged on the inner side of the optical component, and the optical component is located on the light reflecting side of the reflective bowl.

[0017] The automobile signal light provided by the utility model comprises the optical system with light rays emitted at random angles.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The utility model has a simple structure. By setting a random patterned surface with light emitting surfaces of random heights and random angles on the surface of the inner mirror, each light emitting surface corresponds to a specific emitted light, thereby forming multiple emitted light rays in random directions, ensuring the light distribution requirements while achieving a random lighting effect similar to that of a diamond. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Other features, objects and advantages of the present invention will become more apparent from the detailed description of the non-limiting embodiments with reference to the following drawings:

[0021] Figure 1 This is a schematic structural diagram of the first endoscope in the present utility model;

[0022] Figure 2 This is a schematic structural diagram of the second endoscope in the present invention;

[0023] Figure 3 This is an axial schematic diagram of one direction of the first endoscope optical system in the present invention;

[0024] Figure 4This is an axial schematic diagram of one direction of the second endoscope optical system in the present invention;

[0025] Figure 5 This is an axial schematic diagram of the first endoscope optical system in the present invention in another direction;

[0026] Figure 6 This is an axial schematic diagram of the second endoscope optical system in the present invention in another direction;

[0027] Figure 7 This is a principle diagram of the optical path of the first endoscope optical system in the present utility model;

[0028] Figure 8 This is a principle diagram of the optical path of the second endoscope optical system in the present invention;

[0029] Figure 9 This is a schematic structural diagram of the inner surface of the first endoscope optical system in the present invention;

[0030] Figure 10 This is a schematic structural diagram of the outer surface of the second endoscope optical system in the present invention;

[0031] Figure 11 This is a schematic structural diagram of the inner surface of the second endoscope optical system in the present invention;

[0032] Figure 12 This is a schematic structural diagram of the hexagonal random pattern in the present invention.

[0033] The figure shows:

[0034] First endoscope optical system 1 Second random patterned surface 72

[0035] Second endoscope optical system 2 Third random patterned surface 73

[0036] First endoscope 3 Fourth random pattern surface 74

[0037] First inner mirror inner surface 31 First regular pattern surface 91

[0038] First inner mirror outer surface 32 Second regular pattern surface 92

[0039] Second endoscope 4 First emission direction 81

[0040] Second inner mirror surface 41 Second emission direction 82

[0041] Second inner mirror outer surface 42 Third emission direction 83

[0042] Reflector 5 Fourth emission direction 84

[0043] LED light source 6 hexagonal random pattern 100

[0044] First random pattern surface 71 DETAILED DESCRIPTION

[0045] The present invention will be described in detail below with reference to specific embodiments. The following embodiments will help those skilled in the art further understand the present invention, but are not intended to limit the present invention in any way. It should be noted that a person skilled in the art may make various variations and improvements without departing from the scope of the present invention. Such variations and improvements are all within the scope of protection of the present invention.

[0046] The utility model discloses an optical system and an automobile signal lamp with randomly-angled light output. By adopting a random patterned surface with light output surfaces of random heights and random angles provided on the inner mirror surface, each light output surface corresponds to a specific output light, thereby forming multiple randomly-directed output light, ensuring the light distribution requirements while achieving a random lighting effect similar to that of a diamond.

[0047] According to the optical system with random angle emission light provided by the utility model, Figure 1 、 3 As shown in Figures 5 and 7, it includes a first endoscope optical system 1. For a thin endoscope optical system, no pattern may be provided on the outer surface of the thin endoscope, and a random pattern surface is provided on the inner surface of the thin endoscope. Each surface of the random pattern surface is only responsible for the outgoing light in a specific direction, and all the random pattern surfaces are randomly assigned to the outgoing directions, so the pattern surfaces are staggered and disorderly, and look like diamonds, but can meet the light distribution requirements (regular patterns are that each surface is responsible for the outgoing light in all directions, and all patterns have exactly the same appearance).

[0048] According to the optical system with random angle emission light provided by the utility model, Figure 2 、 4 , 6, and 8, comprising a second endoscope optical system 2, for a thick endoscope optical system, a random patterned surface is provided on the outer surface of the thick endoscope, each of the random patterned surfaces is only responsible for outgoing light in a specific direction, and all random patterned surfaces are randomly assigned outgoing directions, so the patterned surfaces are staggered and disorderly, and look like diamonds, but can meet the light distribution requirements. In order to improve the efficiency of the system, regular patterns of the same or different sizes can be provided on the inner surface of the thick endoscope.

[0049] Example 1

[0050] The utility model discloses an automotive signal light optical system for achieving a stardust lighting effect, comprising an LED light source 6, a reflective bowl 5, and a thin inner mirror or a thick inner mirror, wherein the thin inner mirror is a first inner mirror 3, and the thick inner mirror is a second inner mirror 4. The LED light source 6 can be set as a yellow LED light source or a white LED light source or a combination of white and yellow according to requirements. The reflective bowl 5 is used to reflect light reflected by the light source to achieve energy convergence. The outer surface of the thin inner mirror can be a smooth surface to achieve a transparent appearance effect. The inner surface of the thin inner mirror is provided with a random pattern surface, each surface of the random pattern surface is only responsible for outgoing light in a specific direction, and all random pattern surfaces are randomly assigned to outgoing directions, so these random pattern surfaces are staggered in height and disorder, and look like diamonds, but can meet the light distribution requirements.

[0051] The outer surface of the thick inner lens is provided with a random pattern surface. Each surface of this random pattern surface is responsible for the outgoing light in a specific direction, and all random pattern surfaces are randomly assigned to the outgoing direction. Therefore, the pattern surface is staggered and disorderly, looking like a diamond, but it can meet the light distribution requirements. To improve system efficiency, the inner surface of the thick inner lens can be provided with a regular pattern of the same or different sizes (if the inner surface of the thick inner lens is not provided with a pattern, the light efficiency will be very low and cannot meet the light distribution regulations. The regular pattern means that each surface is responsible for the outgoing light in all directions). The shape of the random pattern can also be customized and can be different shapes.

[0052] like Figure 7 、 8 As shown, it is the optical path principle of the utility model:

[0053] 1. For thin interior mirrors (thickness d of approximately 10 mm): the light emitted by the LED light source 6 is converged and collimated by the reflective bowl 5 and irradiated onto the first random patterned surface 71 and the second random patterned surface 72 on the inner surface of the thin interior mirror (only two surfaces are used as examples here, and in fact multiple random patterned surfaces are set). Then the light will propagate along the first emitting direction 81 and the second emitting direction 82 corresponding to the first random patterned surface 71 and the second random patterned surface 72 respectively (because it is a thin interior mirror, the outer surface has almost no effect on the propagation of light). It should be noted that the first random patterned surface 71 is only responsible for the first emitting direction 81, and the second random patterned surface 72 is only responsible for the second emitting direction 82. Finally, the light in all directions is superimposed to meet the light distribution requirements.

[0054] 2. For thick inner mirror (thickness D greater than 10mm): the light emitted by the LED light source 6 is converged and collimated by the reflective bowl 5, and irradiates the first regular patterned surface 91 and the second regular patterned surface 92 on the inner surface of the thick inner mirror, and then the light will continue to propagate forward along the first regular patterned surface 91 and the second regular patterned surface 92. Since the regular patterned surface is perpendicular to the propagation direction, the propagation direction of the light will not be changed, so that the light can completely enter the thick inner mirror, and the system efficiency will be very high. Finally, the light propagates to the third random patterned surface 73 and the fourth random patterned surface 74 respectively, and then the light will propagate along the third exit direction 83 and the fourth exit direction 84 corresponding to the third random patterned surface 73 and the fourth random patterned surface 74 respectively. It should be noted that the third random patterned surface 73 is only responsible for the first exit direction 83, and the fourth random patterned surface 74 is only responsible for the fourth exit direction 84. Finally, the light in all directions is superimposed to meet the light distribution requirements.

[0055] In a preferred embodiment, the optical system may also be equipped with two layers of inner mirrors, which can be selected according to design requirements, thereby achieving functional reuse, better optical effects, and no graininess.

[0056] In a preferred embodiment, thin or thick endoscopes can be made into double-color injection molding to reduce costs. Random patterns can be customized according to actual conditions, such as Figure 10 As shown, there are multiple triangular pyramid-shaped light emitting structures distributed on the random pattern surface. The bases of adjacent triangular pyramid-shaped light emitting structures overlap, and the sides of the triangular pyramid-shaped light emitting structures form light emitting surfaces. The height of the triangular pyramid-shaped light emitting structures and the angle between the side and bottom surfaces are randomly set. Among the multiple light emitting surfaces on the random pattern surface, each light emitting surface is a plane, and a folding surface is formed between adjacent light emitting surfaces. The angle between the light emitting surface and the inner or outer surface of the endoscope is an obtuse angle. Figure 12 As shown, it can also be designed as a hexagonal random pattern 100 formed by splicing multiple random parameter hexagonal emission surfaces.

[0057] The random pattern can also be applied to other optical components, such as reflectors, light curtains, and thick-walled components. It can also be applied to external lenses to simplify the system. The random pattern can be applied in various combinations, including on two sides, with one side regular and the other irregular. It can also be applied to through-lights. It can also be applied to logo lights, meeting the lighting requirements of various national regulations and standards while also displaying desired letters and patterns. This utility model utilizes a one-to-one correspondence between the random pattern and the emitted light, ensuring compliance with lighting regulations while achieving a stardust lighting effect.

[0058] In the description of this application, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0059] The above describes specific embodiments of the present invention. It should be understood that the present invention is not limited to the specific embodiments described above, and those skilled in the art may make various changes or modifications within the scope of the claims, which do not affect the essence of the present invention. The embodiments of this application and the features in the embodiments may be combined with each other in any manner unless there is a conflict.

Claims

1. An optical system with light rays emitted at random angles, characterized in that: It comprises an optical component and an LED light source (6), wherein the optical component is used to emit light emitted by the LED light source (6); The inner surface or the outer surface of the optical component is provided with a random pattern surface, and a plurality of light emitting surfaces with random heights and random angles are distributed on the random pattern surface, so as to form a plurality of light emitting light rays in random directions.

2. The optical system with random-angle emission light according to claim 1, characterized in that: The optical component includes an inner mirror, the inner surface of the inner mirror is provided with a random pattern surface, and the outer surface of the inner mirror is a smooth surface.

3. The optical system with random-angle emission light according to claim 2, characterized in that: The interior mirror comprises a first interior mirror (3), the thickness d of the first interior mirror (3) is less than or equal to 10 mm, the inner surface (31) of the first interior mirror is provided with a random patterned surface, and the outer surface (32) of the first interior mirror is a smooth surface.

4. The optical system with random-angle emission light according to claim 1, characterized in that: The optical component includes an inner mirror, the outer surface of the inner mirror is provided with a random pattern surface, and the outer surface of the inner mirror is provided with a regular pattern surface.

5. The optical system with random-angle emission light according to claim 4, characterized in that: The interior mirror comprises a second interior mirror (4), the thickness D of the second interior mirror (4) is greater than 10 mm, and a regular patterned surface is provided on the inner surface (41) of the second interior mirror; A random patterned surface is provided on the outer surface (42) of the second inner mirror, and a plurality of step structures are distributed in an array on the regular patterned surface, and the light incident surface of the step structure is perpendicular to the incident light.

6. The optical system with random-angle emission light according to claim 1, characterized in that: A plurality of triangular pyramid-shaped light emitting structures are distributed on the random pattern surface, the bases of adjacent triangular pyramid-shaped light emitting structures overlap, and the side surfaces of the triangular pyramid-shaped light emitting structures form light emitting surfaces; The height, side surface and bottom surface angles of the triangular pyramid light emitting structure are randomly set.

7. The optical system with random-angle emission light according to claim 1, characterized in that: Among the multiple light emitting surfaces on the random pattern surface, each light emitting surface is a plane, and a folded surface is formed between adjacent light emitting surfaces; The angle between the light emitting surface and the inner surface or outer surface of the endoscope is an obtuse angle.

8. The optical system with random-angle emission light according to claim 1, wherein: It also includes a reflective bowl (5), which is used to reflect light emitted by the LED light source (6). The reflective bowl (5) is arranged on the inner side of the optical component, and the optical component is located on the light reflecting side of the reflective bowl (5).

9. A car signal light, characterized in that: An optical system comprising light rays emitted at random angles as described in any one of claims 1 to 8.

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