TWM560409U - Vehicle lamp - Google Patents

Abstract

A lamp includes a lens and a illuminating member. The lens includes a light incident surface, a light exit surface, a two reflection surface, and two side surfaces which are arranged along an optical axis. The reflecting surfaces are spaced apart from each other and are respectively connected to the left and right sides of the light incident surface. The sides are respectively located on the left and right sides of the reflecting surfaces and extend forward to connect the light emitting surface. The incident light is reflected by the reflecting surface toward the light emitting surface to prevent the light from being incident on the side surfaces, and the illumination range of the emitted light is controlled by the extension curvature of the light emitting surface, so that the projected illumination area is Continuous, uninterrupted. Also because the sides are not functional surfaces for regulating the shape of the light, the sides can be varied in a variety of shapes.

Description

Headlight

The present invention relates to a vehicle lamp, and more particularly to a lamp that can be used as a remote lamp, a proximity lamp, an illumination lamp, an indicator light, and the like.

Referring to Figures 1 and 2, a vehicle lamp disclosed in Taiwan Patent No. I582335 includes a light-emitting module 1 and a heat sink 2. The light emitting module 1 includes a light guiding lens 11 and a light emitting unit 12 . The light guiding lens 11 includes a light incident surface 111 and a light exiting surface 112 which are arranged at intervals along an optical axis L1, and two side surfaces 113 which are respectively extended from the left and right sides of the light incident surface 111 toward the light emitting surface 112.

The light of the light-emitting unit 12 enters the light-guiding lens 11 through the light-incident surface 111, and part of the light (such as arrow A in FIG. 2) is emitted toward the light-emitting surface 112 toward the front, and the light is mainly concentrated in front of the illumination lamp. Central range. A part of the light is reflected by the side surfaces 113 multiple times in the inside of the light guiding lens 11 to be advanced (as shown by an arrow B in FIG. 2 ), and then emitted toward the light emitting surface 112 , and the light reflected by the left side surface 113 is projected on the right front side. The light reflected by the side surface 113 on the right side is projected to the left front.

In practice, it is found that the light directly passing through the light-emitting surface 112 (arrow A) and the light projected from each side 113 (arrow B) form three truncated bright blocks on the illumination plane, that is, The projected light shape is discontinuous, and a darker block is formed between the blocks, which produces a visual effect of light-shaped disconnection, which is less than ideal. Moreover, because the side surfaces 113 are used to reflect light, the side surfaces 113 have an influence on the light shape, so the shape and curvature of the side surface 113 cannot be changed too much. Therefore, the applicant of the present invention believes that the lamp is known. The place for improvement.

Accordingly, it is an object of the present invention to provide a vehicle light that overcomes at least one of the disadvantages of the prior art.

Therefore, the novel lamp includes at least one light-emitting module, the at least one light-emitting module includes a lens, and a light-emitting member, the lens includes a light-incident surface, a light-emitting surface, two reflective surfaces, and two sides .

The light incident surface includes a first light incident portion on an optical axis, and the first light incident portion is a surface facing the rear arc. The light-emitting surface is a curved surface and is arranged at intervals along the optical axis on the front side of the light incident. The reflecting surfaces are oppositely connected to the left and right sides of the light incident surface, and the reflecting surfaces are configured to reflect light incident through the light incident surface to the light emitting surface, and each reflecting surface is a paraboloid. And the virtual focus of each reflective surface is away from the first light incident portion relative to the light emitting member, and is not located on the optical axis. The sides are respectively located on the left and right sides of the reflecting surfaces and extend forward to connect the light emitting surface, and the minimum distance between each side and the optical axis is greater than the maximum distance between each reflecting surface and the optical axis.

The effect of the novel is that the incident light is reflected by the reflecting surface toward the light emitting surface, the light is prevented from being directed to the side surfaces, and the illumination range of the emitted light is controlled by the extension curvature of the light emitting surface. The projected illumination area is continuous, uninterrupted, and light-shaped. Also, because the side surfaces are not used to regulate the functional surface of the light shape, the side surface can be varied in various shapes and can be flexibly utilized.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same reference numerals.

Referring to FIG. 3 to FIG. 6 , a first embodiment of the present invention can be a vehicle of a heavy-duty locomotive, an automobile, or the like, and includes a light-emitting module 3 including a lens 4 and a light-emitting component. 5, and a circuit board 51. In the following description, the light emission direction is forward.

The lens 4 includes a light incident surface 41, a light exit surface 42, two reflective surfaces 43, two engaging surfaces 44, and two side surfaces 45. The light incident surface 41 includes a base portion 410 surrounding an optical axis L, a first light incident portion 411 located in front of the base portion 410 and located on the optical axis L, and a circumference around the optical axis L from the inner periphery of the base portion 410. The second light incident portion 412 extending forward and connected to the periphery of the first light incident portion 411. The base 410 is generally a rearwardly facing annular plane. The first light incident portion 411 is a convex lens surface facing the rear arc, and defines a light entrance space 413 together with the second light incident portion 412. The light incident space 413 has one formed on the base portion 410 and facing backward. Opening 414.

The light-emitting surface 42 is arranged on the front side of the light-incident surface 41 at intervals along the optical axis L. The light-emitting surface 42 is a curved surface, and the extending curvature thereof can effectively control the illumination range of the emitted light, including the up-and-down direction and the left-right direction. range. When the light-emitting surface 42 of the first embodiment is viewed from above and below, the light-emitting surface 42 gradually diverge toward the front from the upper and lower sides to the center, and the light is collected forward and downward, and the light is seen in the left-right direction. The surface 42 gradually merges toward the rear from the left and right sides toward the center, so that the outgoing light can be obliquely emitted to the left and right sides, which can improve the illumination range of the left and right.

The reflection surfaces 43 are oppositely connected to the left and right sides of the light incident surface 41, and are used to reflect the light incident from the light-emitting member 5 through the light-incident surface 41 to the light-emitting surface 42 to be emitted. Each reflecting surface 43 is a paraboloid. The area of the reflecting surfaces 43 is not required to be too large, and the length of the forward and backward directions is smaller than the length of the forward and backward directions of the side surfaces 45.

The engaging faces 44 extend laterally from the reflecting surfaces 43 to respectively connect the trailing edges of the side faces 45.

The side surfaces 45 are respectively located on the left and right sides of the reflecting surfaces 43 and extend forward from the one ends of the connecting surfaces 44 to connect the left and right sides of the light emitting surface 42. The minimum distance d1 of each side surface 45 from the optical axis L is greater than the maximum distance d2 of each of the reflecting surfaces 43 from the optical axis L.

The illuminating member 5 is, for example, a light emitting diode (LED) mounted on the circuit board 51 and facing the light incident space 413 and the first light incident portion 411. The center of the illuminating member 5 is located on the optical axis L. The position of the illuminating member 5 is matched with the light-emitting angle of the illuminating member 5 and the structure of the lens 4. The illuminating lamp of the embodiment can be made into a far-light shape for use as a remote lamp. Referring to FIG. 7 , in another embodiment of the present embodiment, the bottom edge of the illuminating member 5 is located on the optical axis L, and the light-emitting angle of the illuminating member 5 and the structure of the lens 4 can be used to generate a near-light shape. Use near lights. Therefore, as the position of the illuminating member 5 is different, illumination of different functions can be produced.

4 to 6, in the present invention, the light of the illuminating member 5 enters the lens 4 through the first light incident portion 411 and the second light incident portion 412 of the light incident surface 41. The first light incident portion The surface of the convex lens on the 411 rearward arc helps to refract light. Then, the light is reflected by the reflecting surface 43, and the reflected light is approached toward the optical axis L (rather than being reflected in the direction of the side surface 45), and then transmitted by the lens 4, and then emitted from the light emitting surface 42, and the reflecting surface 43 on the left side. The reflected light is still located on the left side of the optical axis L when it is directed toward the light exiting surface 42, and the light reflected by the reflective surface 43 on the right side is still located on the right side of the optical axis L when it is incident on the light exiting surface 42. The extended curvature and range of the light exiting surface 42 are such that the illumination range of the emitted light is sufficiently large to produce a conforming light shape and brightness. The novel makes the distribution of the light field of the emitted light continuous, and can avoid the dark blocks which are separated and disconnected inside the light shape. It can also be seen from the above description that since the light is reflected by the reflecting surface 43 after entering the light incident surface 41, almost no light travels toward the side surfaces 45, and the side surfaces 45 are not used as the main reflecting or refracting light. The use, that is to say, the sides 45 are relatively independent of the control profile.

In addition, the reflecting surfaces 43 of the present embodiment are also specially designed. The reflecting surfaces 43 are paraboloids and are appropriately curved to reflect light toward the light emitting surface 42. The virtual focus F of the reflecting surfaces 43 is located at the same position, for example, as shown in FIGS. 5 and 6. It has been experimentally found that the above design can achieve optimum light extraction efficiency and high brightness of the lamp. Moreover, the virtual focus F of each reflective surface 43 is located away from the first light incident portion 411 with respect to the light emitting member 5, and the virtual focus F is not located on the optical axis L. The reason for this design is that when the reflective surfaces 43 are When the virtual focus falls on the position of the illuminating member 5, or when the first illuminating portion 411 is adjacent to the illuminating member 5 (that is, on the front side of the illuminating member 5), in order to achieve the required optical effect, The first light incident portion 411 must be disposed at a further front portion, and the position of the light exit surface 42 must also be adjusted as it is, that is, the longitudinal length of the lens 4 as a whole (the distance from the base portion 410 to the light exit surface 42). It must be lengthened, which is not conducive to the miniaturization of the lens 4. When designed to conform to the conditions of the present embodiment, the longitudinal length of the lens 4 can be short. In addition, the intersection of the opening 414 defining the light entrance space 413 and the optical axis L is a center point C. Preferably, the focus of the first light incident portion 411 is located at the center point C, and the focus of the light exit surface 42 Located at the center point C or near the center point C.

In summary, the incident light rays are reflected by the reflective surface 43 toward the light exit surface 42 to prevent the light from being incident on the side surfaces 45, and the emitted light is regulated by the extension curvature of the light exit surface 42. The illumination range is such that the projected illumination area is continuous, uninterrupted, and has a good light shape. Also, since the side faces 45 are not used to adjust the functional surface of the light shape, the side faces 45 can be changed in other shapes, for example, changing the extending direction, curvature, slope, and pattern of the side faces 45 does not affect the light shape. Therefore, the design of the side 45 is varied and can be flexibly utilized.

Referring to FIG. 8 , a second embodiment of the novel lamp includes a plurality of the light-emitting modules 3 , and the light-emitting modules 3 are adjacently arranged, and each of the two adjacent light-emitting modules 3 One of the side faces 45 of the lens 4 faces one of the side faces 45 of the other lens 4. Any two adjacent light-emitting modules 3 may be arranged closely or without gaps, or may be arranged at intervals, and may be appropriately designed according to the structure of the vehicle body. Specifically, the light-emitting modules 3 of the second embodiment are spaced apart from each other and arranged in a line, but may be arranged in other ways. The light-emitting modules 3 can include a high-beam and a near-light, and can be controlled by appropriate circuits to achieve a long- and near-light switching function, and the far-light and the near-lights can be staggered or arranged in other ways. Therefore, at least one of the illumination modules 3 of the present invention is a high beam, at least one of which is a near lamp. Alternatively, the light-emitting modules 3 may all be high-light lights or both.

Since the side surface 45 of the lens 4 does not affect the light-emitting shape, the light-emitting modules 3 of the second embodiment can be arranged in a manner that the side faces 45 are adjacent to each other, and the light-emitting shape of each of the light-emitting modules 3 is not Will be affected. Moreover, the combination of the plurality of light-emitting modules 3 is versatile, and is not only beautiful, and the shape is lively and unique, and can be adapted to the space to be installed for an improved design. In addition, the light-emitting module 3 with different functions can be combined, for example, the combination of the above-mentioned near lamp and the remote lamp, so that the function of the lamp is increased and more practical.

Referring to FIGS. 9 and 10, a third embodiment of the present type of vehicle lamp is substantially the same as the second embodiment. The light-emitting modules 3 are also arranged adjacent to each other in a straight line, and the difference is that the third embodiment The lenses 4 of the light-emitting modules 3 of the example are connected to each other to form an integrated structure, and the longitudinal lengths of the lenses 4 are long and short.

Referring to FIG. 11, a fourth embodiment of the present type of vehicle lamp is substantially the same as the third embodiment, except that the light-emitting modules 3 are arranged in an L-shape.

However, the above is only the embodiment of the present invention, and when it is not possible to limit the scope of the present invention, all the simple equivalent changes and modifications according to the scope of the patent application and the contents of the patent specification are still This new patent covers the scope.

3‧‧‧Lighting module
4‧‧‧ lens
41‧‧‧Into the glossy surface
410‧‧‧ base
411‧‧‧The first light department
412‧‧‧Second Light Department
413‧‧‧Into the light space
414‧‧‧ openings
42‧‧‧Glossy
43‧‧‧reflecting surface
44‧‧‧ interface
45‧‧‧ side
5‧‧‧Lighting parts
51‧‧‧ boards
L‧‧‧ optical axis
D1, d2‧‧‧ distance
C‧‧‧ center point
F‧‧‧ virtual focus

Other features and effects of the present invention will be apparent from the following description of the drawings, wherein: FIG. 1 is a perspective view of a known vehicle lamp; FIG. 2 is a top cross-sectional view of the known vehicle lamp, the arrow in the figure 3 is a rear perspective view of a first embodiment of the present invention; FIG. 4 is a side cross-sectional view of the first embodiment, and illustrates the first embodiment applied to a remote light; 5 is a top cross-sectional view of the first embodiment, the arrows in the figure illustrate the light path; FIG. 6 is a partial enlarged view of FIG. 5; FIG. 7 is a variation of the first embodiment, illustrating the application of the first embodiment In the near lamp, the position of a illuminating member of the first embodiment is different from that of FIG. 4; FIG. 8 is a front perspective view of a second embodiment of the vehicular lamp of the present invention, illustrating a plurality of illuminating modes of the lamp Figure 9 is a front perspective view of a third embodiment of the vehicle lamp, illustrating a plurality of lighting modules of the vehicle lamp arranged in a line, and Several lenses of the light-emitting module are integrally connected; FIG. 10 is the same A rear perspective view of the third embodiment; and FIG. 11 is a front perspective view of a fourth embodiment of the present novel lamp, illustrating the light-emitting module arranged in an L type.

Claims (9)

A vehicle lamp comprising at least one light emitting module, the at least one light emitting module comprising a lens, and a light emitting member, the lens comprising: a light incident surface comprising a first light incident portion on an optical axis, the light The first light-incident portion is a surface facing the rear arc; a light-emitting surface is a curved surface, and is arranged at intervals along the optical axis on the front side of the light-incident; the two reflecting surfaces are oppositely spaced and respectively connected to the light-in entering light. The left and right sides of the surface are configured to reflect light incident through the light incident surface to the light exit surface, each reflective surface is a paraboloid, and a virtual focus of each reflective surface is relative to the light emitting The member is located away from the first light incident portion and is not located on the optical axis; and the two side surfaces are respectively located on the left and right sides of the reflective surfaces and extend forward to connect the light exiting surface, each side and the light The minimum distance of the axis is greater than the maximum distance of each reflective surface from the optical axis. The vehicular light according to claim 1, wherein the light incident surface further comprises a base portion behind the first light incident portion and surrounding the optical axis, and a front portion extending from the inner peripheral edge of the base portion and connecting the first a second light incident portion of the light incident portion, the second light incident portion and the first light incident portion define a light entrance space. The vehicular light according to claim 1, wherein the illuminating surface gradually protrudes toward the front from the upper and lower sides thereof toward the center. The vehicular lamp of claim 3, wherein the illuminating surface gradually diverge toward the rear from the left and right sides toward the center. The vehicular lamp of claim 1, wherein the center of the illuminating member is located on the optical axis, and the at least one illuminating module is a high beam. The vehicular lamp of claim 1, wherein a bottom edge of the illuminating member is located on the optical axis, and the at least one illuminating module is a near lamp. The vehicular lamp of claim 1, comprising a plurality of the illuminating modules, wherein the illuminating modules are adjacently arranged, and in any two adjacent illuminating modules, one of the sides of each lens faces the other One of the sides of the lens. The illuminating module of claim 1 includes a plurality of the illuminating modules, wherein the illuminating modules are adjacently arranged, and at least one of the illuminating modules is a high beam, at least one of which is a near lamp. The vehicle lamp of claim 1 includes a plurality of the light-emitting modules, wherein the light-emitting modules are adjacently arranged, and the light-emitting modules are all high-light lights, or the light-emitting modules are all near lights.