Signal lamp

Abstract

A signal lamp comprises a lamp body, an optical system and a mask, the mask and the lamp body are matched to form a containing space, the optical system is arranged in the containing space, the optical system sequentially comprises a light source, a light homogenizing plate and a lens in the light emitting direction, and the light source comprises a lamp panel and a plurality of LED lamp beads arranged on the lamp panel; the lens is annular and comprises a light incoming surface, a reflecting surface and a light outgoing surface, the light outgoing surface is located on one side opposite to the reflecting surface, the light outgoing surface is in a step shape and comprises a plurality of step surfaces with different heights, the adjacent step surfaces are connected through connecting surfaces, the step surfaces are located above the light incoming surface, and the connecting surfaces are located above the light incoming surface. Optical textures for scattering light are arranged on the step surface, and the connecting surface is a fully reflecting surface. The reflecting surface and the connecting surface are fully reflecting surfaces, so that the emergent light brightness of the step surface can be improved, and the influence of stray light on emergent light of the step surface is reduced; the step surfaces have different heights and are mutually staggered, and when the step surfaces emit light, a suspension stereoscopic impression is formed on the whole light emitting surface.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of car light, especially a signal light. BACKGROUND

[0002] The lens is widely used in the optical system of the lamp, and the lens can be designed into a light condensing or light scattering according to the required function. The existing signal light lens light surface is whole surface light emission, and the light emitting surface lacks stereoscopic sense. SUMMARY

[0003] The utility model wants to solve the technical problem to provide a signal light, and the light emitting surface of the lens is in the form of ladder, and the light emitting surface has stereoscopic sense.

[0004] In order to solve the above technical problem, the technical scheme of the utility model is: a signal light, including the lamp body, optical system and face shield, the face shield and the lamp body cooperate and form the accommodation space, the optical system is located in the accommodation space, the optical system includes light source, homogenizing plate and lens in turn according to the light emitting direction, the light source includes the lamp plate and the LED lamp pearl of a plurality of being arranged on the lamp plate;The lens is annular, and it includes light entrance surface, reflecting surface and light emitting surface, the light emitting surface is located on the opposite side of reflecting surface, the light emitting surface is in the form of ladder, and it includes a plurality of ladder surfaces with different heights, and the adjacent ladder surfaces are connected through connecting surfaces, the ladder surface is located above the light entrance surface, and the optical texture for light scattering is arranged on the ladder surface, and the connecting surface is a total reflection surface.The utility model principle: reflecting surface and connecting surface are all total reflection surfaces, can improve the light emitting brightness of ladder surface, and reduce the influence of stray light on the light emitting of ladder surface;Each ladder surface has different heights and is staggered, and the light emitting of ladder surface forms the suspended stereoscopic sense on the whole light emitting surface.

[0005] As an improvement, the cross section of the lens is triangular, the bottom surface of the lens is the light entrance surface, the outer side of the lens is the reflecting surface, and the inner side of the lens is the light emitting surface.

[0006] As an improvement, the included angle between the connecting surface and the light entrance surface is 70-90°.

[0007] As an improvement, the homogenizing plate is closely attached to the light entrance surface of the lens.

[0008] As an improvement, the LED lamp pearl is distributed according to the shape of the light entrance surface of the lens.

[0009] As an improvement, the annular groove is arranged on the lamp body, and the edge of the face shield is arranged in the annular groove.

[0010] As an improvement, the face shield includes a ring-shaped cover body and a cover plate arranged on the inner side of the ring-shaped cover body, and the lens is arranged in the ring-shaped cover body.

[0011] As improvement, the decorative plate is arranged between the cover plate and the lamp plate, and the decorative plate is locked on the lamp body by bolts, and the outer edge of the decorative plate is pressed against the lens.

[0012] The utility model compared with prior art brings beneficial effect is:

[0013] The reflecting surface and the connecting surface are all total reflecting surfaces, which can improve the light brightness of the stepped surface and reduce the influence of stray light on the light of the stepped surface; the stepped surfaces have different heights and are staggered with each other, and when the stepped surface emits light, a floating three-dimensional effect is formed on the whole light emitting surface; the light homogenizing plate can scatter the light of the LED lamp beads, so that the light emitted by the lens is more uniform. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a perspective view of the signal lamp.

[0015] Figure 2 It is an exploded view of the signal lamp.

[0016] Figure 3 It is a sectional view of the signal lamp.

[0017] Figure 4 It is an enlarged view of A of Figure 3 . DETAILED DESCRIPTION

[0018] The utility model will be further described below in combination with the drawings of the specification.

[0019] As shown in Figure 1 , 2 , a signal lamp comprises a lamp body 2, an optical system and a cover 1, the cover 1 is matched with the lamp body 2 to form a containing space, and the optical system is arranged in the containing space. The lamp body 2 is provided with an annular groove 21, and the edge of the cover 1 is arranged in the annular groove 21, which helps to prevent water.

[0020] As shown in Figures 2 to 4As shown, the optical system includes a light source, a light uniformity plate 5 and a lens 3 in sequence according to the light emitting direction. The lens 3 includes an entrance surface 31, a reflecting surface 33 and an exit surface 32, the exit surface 32 is located on the opposite side of the reflecting surface 33, the cross section of the lens 3 is roughly triangular, the bottom of the lens 3 is the entrance surface 31, the outer side of the lens 3 is the reflecting surface 33, and the inner side of the lens 3 is the exit surface 32; the lens 3 is a solid of revolution, and the lens 3 of the embodiment is annular and adapted to the runway-shaped lamp body 2; the exit surface 32 is in a stepped shape and includes a plurality of stepped surfaces 321 with different heights, adjacent stepped surfaces 321 are connected by connecting surfaces 322, the stepped surfaces 321 are located above the entrance surface 31, and the number of the stepped surfaces 321 is designed according to requirements; the stepped surfaces 321 are provided with optical textures for dispersing light, such as vertical textures or corn kernel textures; the connecting surfaces 322 are total reflecting surfaces 33, and the angle between the connecting surfaces 322 and the entrance surface 31 is 70-90°; after the light enters the lens 3 from the entrance surface 31, part of the light directly exits from the stepped surfaces 321, and the other part of the light exits from the stepped surfaces 321 after being reflected by the reflecting surface 33 and the connecting surfaces 322. The light uniformity plate 5 is tightly attached to the entrance surface 31 of the lens 3, the shape of the light uniformity plate 5 can be similar to that of the entrance surface 31, and the light uniformity plate 5 can disperse the light of the LED lamp beads 7 to make the light emitted by the lens 3 more uniform. The light source includes a lamp plate 6 and a plurality of LED lamp beads 7 arranged on the lamp plate 6, and the LED lamp beads 7 are distributed according to the shape of the entrance surface 11 of the lens 3. The reflecting surface 33 and the connecting surfaces 322 of the lens 3 are total reflecting surfaces, which can improve the light emitting brightness of the stepped surfaces 321 and reduce the influence of stray light on the light emitted by the stepped surfaces 321; each stepped surface 321 has a different height and is staggered with each other, and a suspended three-dimensional effect is formed on the entire exit surface 32 when the stepped surfaces 321 emit light.

[0021] As shown in Figure 3 , 4 , the mask 1 has a shape of concave in the middle and convex on the periphery, has a three-dimensional effect, and includes an annular cover body 11 and a cover plate 12 arranged on the inner side of the annular cover body 11, the annular cover body 11 and the cover plate 12 are integrally injection molded. An annular cavity is formed in the annular cover body 11, the lens 3 is arranged in the annular cover body 11, and the lens 3 emits light through the annular cover body 11. A decorative plate 4 is arranged between the cover plate 12 and the lamp plate 6, the decorative plate 4 is locked on the lamp body 2 by bolts, the decorative plate 4 can shield electronic components on the lamp plate 6 and has a decorative effect. In addition, a first boss 34 is arranged on the outer side of the lens 3, the first boss 34 abuts against the outer side edge of the annular groove 21, a second boss 35 is arranged on the inner side lower end of the lens 3, the outer edge of the decorative plate 4 tightly presses the second boss 35 of the lens, so that the lens 3 is tightly fixed; a convex column is arranged on the bottom of the decorative plate 4, which can tightly press the lamp plate; during installation, a long bolt 8 is used to pass through the mask and the lamp body and is locked on the vehicle body.

Claims

1. A signal lamp comprising a lamp body, an optical system and a mask, the mask cooperating with the lamp body to form a containing space, the optical system being arranged in the containing space, the optical system comprising, in order of light emission direction, a light source, a homogenizing plate and a lens, the light source comprising a lamp plate and a plurality of LED lamp beads arranged on the lamp plate; characterized in that: The lens is annular, comprising an incident surface, a reflecting surface and an emitting surface, the emitting surface is located on the opposite side of the reflecting surface, the emitting surface is stepped, comprising a plurality of stepped surfaces with different heights, the stepped surfaces are connected by connecting surfaces, the stepped surfaces are located above the incident surface, the stepped surfaces are provided with optical textures for dispersing light, and the connecting surfaces are total reflection surfaces.

2. A signal light according to claim 1, characterized in that: The cross section of the lens is triangular, the bottom surface of the lens is the incident surface, the outer side of the lens is the reflecting surface, and the inner side of the lens is the emitting surface.

3. A signal light according to claim 1, wherein: The included angle between the connecting surface and the incident surface is 70-90°.

4. A signal light according to claim 1, wherein: The light uniformity plate is tightly attached to the incident surface of the lens.

5. A signal light according to claim 1, wherein: The LED lamp beads are distributed according to the shape of the incident surface of the lens.

6. A signal light according to claim 1, wherein: The lamp body is provided with an annular groove, and the edge of the cover is arranged in the annular groove.

7. A signal light according to claim 1, wherein: The cover comprises an annular cover body and a cover plate arranged on the inner side of the annular cover body, and the lens is arranged in the annular cover body.

8. A signal light according to claim 7, wherein: A decorative plate is arranged between the cover plate and the lamp plate, the decorative plate is locked on the lamp body by bolts, and the outer edge of the decorative plate is tightly pressed against the lens.

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