Lens and lamp

Abstract

The present invention is applicable to the field of lighting technology, and provides a lens and a lamp. The bottom of the lens of the present invention is provided with a groove, the bottom surface of the groove is a first reflection surface, the outer side surface of the groove is a refractive surface, and the side surface of the lens is a second reflection surface; the first reflection surface and the second reflection surface are both non-rotationally symmetrical curved surfaces; when the lens of the present invention is applied to lighting, its light distribution angle can reach 60°×60°, and the optical effects of this light distribution angle in two vertical directions are basically the same, so a uniform light spot can be generated, thereby effectively improving the lighting effect. The lamp of the present invention includes the above-mentioned lens, and a light source arranged in the groove corresponding to the lens, which can generate a uniform light spot and has a good lighting effect.

Description

Technical Field

[0001] The present invention relates to the technical field of lighting, and in particular to a lens and a lamp. Background Art

[0002] The size of existing lens modules is usually 285mm×60mm×10mm, and the light distribution angle of this lens module can generally only reach 60°×100°. The optical effects of this light distribution angle in two vertical directions (C0 / 180 plane and C90 / 270 plane) are inconsistent. When the above lens module is used for lighting, the light spot is elliptical or approximately rectangular, which will undoubtedly greatly affect the actual lighting effect. Summary of the invention

[0003] One of the purposes of the embodiments of the present invention is to provide a lens, aiming to solve the technical problem that the light spot uniformity of the existing lens module is poor and affects the actual lighting effect.

[0004] The embodiment of the present invention is implemented as follows: a lens, wherein a groove is provided at the bottom of the lens, the bottom surface of the groove is a first reflection surface, the side surface of the groove is a refractive surface, and the outer side surface of the lens is a second reflection surface; the first reflection surface and the second reflection surface are both non-rotationally symmetric curved surfaces;

[0005] The first reflection surface is defined by the first generatrix being translated along the first direction, and the function corresponding to the first generatrix is: 1 =-a 1 x 1 3 +b 1 x 1 2 -c 1 x 1 , where x 1 The value range is 0 to 20. 1 The value range of b is 0.0001~0.001, 1 The value range is 0.01~1, c 1 The value range of is 0.1~1;

[0006] The second reflection surface is defined by translating the second generatrix along the second direction, and the function corresponding to the second generatrix is: 2 =a 2 x 2 3 -b 2 x 2 2 +c 2 x 2 , where x 2 The value range is 0 to 30. 2The value range of b is 0.001~0.01, 2 The value range is 0.01~0.1, c 2 The value range is 0.5~1.5.

[0007] In one embodiment, the first reflecting surface includes two first sub-reflecting surfaces and two second sub-reflecting surfaces, the first sub-reflecting surfaces and the second sub-reflecting surfaces are connected end to end in sequence to form the first reflecting surface, the two second sub-reflecting surfaces are arranged at intervals, and the two first sub-reflecting surfaces are smoothly connected and arranged between the two second sub-reflecting surfaces.

[0008] In one embodiment, the first direction is perpendicular to the plane where the first busbar is located, the first sub-reflection surface is a curved surface obtained by translating the first busbar by 3 to 5 coordinate units along the first direction, and the second sub-reflection surface is a curved surface obtained by rotating the first busbar by 120° to 180°.

[0009] In one embodiment, the second reflecting surface includes two third sub-reflecting surfaces and two fourth sub-reflecting surfaces, the third sub-reflecting surfaces and the fourth sub-reflecting surfaces are connected end to end in sequence to form the second reflecting surface, and the two third sub-reflecting surfaces are arranged at intervals, and the two fourth sub-reflecting surfaces are arranged at intervals.

[0010] In one embodiment, the second direction is perpendicular to the plane where the second busbar is located, the third sub-reflection surface is a curved surface obtained by translating the second busbar along the second direction by 3 to 5 coordinate units, and the fourth sub-reflection surface is a curved surface obtained by rotating the second busbar by 120° to 180°.

[0011] In one embodiment, the refractive surface is inclined at an angle of 80° to 90° relative to the bottom surface of the lens.

[0012] In one embodiment, in the function of the first busbar, x 1 The value range is 2 to 16. 1 The value range of b is 0.0006~0.0008, 1 The value range is 0.02~0.04, c 1 The value range is 0.1~0.3.

[0013] In one embodiment, in the function of the second busbar, x 2 The value range is 2 to 22, a 2 The value range of b is 0.001~0.004, 2 The value range is 0.01~0.05, c 2 The value range is 0.8~1.2.

[0014] Another object of the present invention is to provide a lamp, comprising a plurality of lenses as described above, and light sources arranged corresponding to the grooves of the lenses.

[0015] In one embodiment, the first reflecting surface includes two first sub-reflecting surfaces and two second sub-reflecting surfaces, two light sources are arranged corresponding to the groove of each lens, and the two light sources are arranged in sequence along the connection direction of the two second sub-reflecting surfaces, and the illumination spot of each light source is circular, and the illumination angle is 60±5°.

[0016] The lens provided by the embodiment of the present invention has a groove at the bottom of the lens, the bottom surface of the groove is a first reflection surface, the side surface of the groove is a refractive surface, and the outer side surface of the lens is a second reflection surface; the first reflection surface and the second reflection surface are both non-rotationally symmetric curved surfaces; the first reflection surface is defined by the first generatrix being translated in a first direction, and the function corresponding to the first generatrix is: y 1 =-a 1 x 1 3 +b 1 x 1 2 -c 1 x 1 , where x 1 The value range is 0 to 20. 1 The value range of b is 0.0001~0.001, 1 The value range is 0.01~1, c 1 The value range of y is 0.1~1; the second reflection surface is defined by the second generatrix translated along the second direction, and the function corresponding to the second generatrix is: 2 =a 2 x 2 3 -b 2 x 2 2 +c 2 x 2 , where x 2 The value range is 0 to 30. 2 The value range of b is 0.001~0.01, 2 The value range is 0.01~0.1, c 2 The value range of is 0.5 to 1.5; when the lens of the present invention is applied to lighting, its light distribution angle can reach 60°×60°, and the optical effects of this light distribution angle in two vertical directions are basically the same, so a uniform light spot can be generated, thereby effectively improving the lighting effect. The lamp provided by the present invention includes the above-mentioned lens and a light source arranged in a groove corresponding to the lens, which can generate a uniform light spot and has a good lighting effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 and Figure 2 is a schematic diagram of the three-dimensional structure of a lens provided by an embodiment of the present invention;

[0019] Figure 3 is a schematic diagram of the bottom-up structure of a lens provided by an embodiment of the present invention;

[0020] Figure 4 is along Figure 3 Schematic diagram of the cross-sectional structure in the AA direction;

[0021] Figure 5 is along Figure 3 Schematic diagram of the cross-sectional structure in the middle BB direction;

[0022] Figure 6 is a schematic diagram of a first busbar forming a first reflection surface;

[0023] Figure 7 is a schematic diagram of the second busbar forming a second reflection surface;

[0024] Figure 8 is a schematic diagram of the combined structure of a light source and a lens provided in an embodiment of the present invention;

[0025] Fig. 9 is a schematic diagram of light distribution angles when a light source provided by an embodiment of the present invention is used in conjunction with a lens;

[0026] Fig.10 It is a schematic diagram of the three-dimensional structure of the lamp provided by an embodiment of the present invention.

[0027] Among them, the reference numerals in the figure are:

[0028] 110-lens; 111-groove; 112-first reflecting surface; 1121-first sub-reflecting surface; 1122-second sub-reflecting surface; 113-refractive surface; 114-second reflecting surface; 1141-third sub-reflecting surface; 1142-fourth sub-reflecting surface; 115-exiting surface; 116-connecting surface; 120-light source; L1-first busbar; L2-second busbar; M1-first rotation axis; M2-second rotation axis. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0030] It should be noted that when a component is referred to as being "fixed on" or "disposed on" another component, it may be directly or indirectly on the other component. When a component is referred to as being "connected to" another component, it may be directly or indirectly connected to the other component. The orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. is based on the orientation or positional relationship shown in the accompanying drawings and is only for the convenience of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation of this patent. The terms "first" and "second" are only used for the convenience of description and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. "Multiple" means two or more, unless otherwise clearly and specifically defined.

[0031] In order to illustrate the technical solution of the present invention, a detailed description is given below in conjunction with specific drawings and embodiments.

[0032] See also Figure 1 and Figure 2 , while combining Figures 3 to 7 The embodiment of the present invention provides a lens 110, wherein a groove 111 is provided at the bottom of the lens 110, the bottom surface of the groove 111 is a first reflection surface 112, the side surface of the groove 111 is a refractive surface 113, and the outer side surface of the lens 110 is a second reflection surface 114; both the first reflection surface 112 and the second reflection surface 114 are non-rotationally symmetric curved surfaces;

[0033] The first reflection surface 112 is defined by the first generatrix L1 being translated along the first direction. The function corresponding to the first generatrix L1 is: 1 =-a 1 x 1 3 +b 1 x 1 2 -c 1 x 1 , where x 1 The value range is 0 to 20. 1 The value range of b is 0.0001~0.001, 1 The value range is 0.01~1, c 1 The value range of is 0.1~1;

[0034] The second reflection surface 114 is defined by the second generatrix L2 being translated along the second direction. The function corresponding to the second generatrix L2 is: 2 =a 2 x 2 3 -b 2 x 2 2 +c 2 x 2 , where x 2 The value range is 0 to 30. 2 The value range of b is 0.001~0.01, 2 The value range is 0.01~0.1, c 2 The value range is 0.5~1.5.

[0035] Combination Figure 8 and Fig. 9 , the lens 110 of the embodiment of the present invention is applied to lighting, the light source 120 is arranged corresponding to the groove 111 of the lens 110, and the light beam generated by the light source 120 includes two transmission paths:

[0036] (i) The light source 120 generates a light beam and emits the light beam to the first reflective surface 112. After the light beam reaches the first reflective surface 112, the first reflective surface 112 reflects the light beam to the refractive surface 113. The refractive surface 113 adjusts the propagation direction of the light beam and transmits the light beam to the second reflective surface 114. The second reflective surface 114 reflects the light beam into the environment, thereby completing the lighting.

[0037] (ii) The light source 120 generates a light beam and transmits the light beam to the refractive surface 113. The refractive surface 113 adjusts the propagation direction of the light beam and transmits the light beam to the second reflective surface 114. The second reflective surface 114 reflects the light beam into the environment, thereby completing the lighting.

[0038] The lens 110 of the embodiment of the present invention adopts an optical free-form surface design to design the first reflection surface 112 and the second reflection surface 114, so that the reflection angle of the light on the first reflection surface 112 and the second reflection surface 114 can be controlled, so that when the lens 110 of the embodiment of the present invention is used for lighting, the light distribution angle can reach 60°×60°. The optical effects of this light distribution angle in two vertical directions (C0 / 180 surface and C90 / 270 surface) are basically consistent, so a uniform light spot can be generated, thereby effectively improving the lighting effect.

[0039] Specifically, in one embodiment of the present invention, in combination Figures 2 to 4The first reflecting surface 112 includes two first sub-reflecting surfaces 1121 and two second sub-reflecting surfaces 1122. The two first sub-reflecting surfaces 1121 and the two second sub-reflecting surfaces 1122 are connected in sequence to form the first reflecting surface 112. The two second sub-reflecting surfaces 1122 are arranged at intervals. The two first sub-reflecting surfaces 1121 are arranged between the two second sub-reflecting surfaces 1122, and the two first sub-reflecting surfaces 1121 are connected in a smooth transition to form the first reflecting surface 112.

[0040] Furthermore, if Figure 3 and Figure 6 As shown, for the convenience of description, three mutually perpendicular coordinate axes in space are defined as the x-axis, the y-axis and the z-axis, the first generatrix L1 is located on the xy plane, the first sub-reflection surface 1121 is a curved surface obtained by translating the first generatrix L1 along the first direction (z-axis), and the second sub-reflection surface 1122 is a curved surface obtained by rotating the first generatrix L1 clockwise around the first rotation axis M1, thereby setting the first reflection surface 112 as a non-rotationally symmetric curved surface. Figure 6 Since the first direction is parallel to the z-axis, it can be determined that the first direction is perpendicular to the xy plane, and since the first busbar L1 is located on the xy plane, the first direction is perpendicular to the plane where the first busbar L1 is located; the first rotation axis M1 is a straight line on the xy plane, the first rotation axis M1 is located on the concave side of the first busbar L1, and the first rotation axis M1 does not intersect with the first busbar L1, that is, the first rotation axis M1 is spaced apart from the first busbar L1, so the first rotation axis M1 is located in the plane where the first busbar L1 is located and is spaced apart from the first busbar L1.

[0041] Optionally, the first sub-reflection surface 1121 is a curved surface obtained by translating the first busbar L1 by 3 to 5 coordinate units along the first direction, and the second sub-reflection surface 1122 is a curved surface obtained by rotating the first busbar L1 by 120° to 180° clockwise along the first rotation axis M1.

[0042] As a preferred embodiment of the present invention, the first sub-reflection surface 1121 is a curved surface obtained by translating the first bus line L1 by 4 coordinate units along the first direction, and the second sub-reflection surface 1122 is a curved surface obtained by rotating the first bus line L1 180° clockwise along the first rotation axis M1.

[0043] It should be noted that the above-mentioned coordinate units refer to the units of the coordinate axis of the function corresponding to the first bus bar L1. In the lens 110 of the embodiment of the present invention, the units of the coordinate axis of the function corresponding to the first bus bar L1 are millimeters (mm). Depending on the actual situation, the units of the coordinate axis of the function corresponding to the first bus bar L1 may also be other units, and the present invention does not limit this.

[0044] Specifically, in one embodiment of the present invention, in combination Figures 2 to 4 , the first reflective surface 112 is arranged to protrude toward the opening of the groove 111. In this embodiment, the height h of the first reflective surface 112 is 1 is 0.3 mm to 0.8 mm, and the length l of the first reflecting surface 112 in the arrangement direction of the two second sub-reflecting surfaces 1122 1 As a preferred embodiment of the present invention, the height h of the first reflective surface 112 is 8 mm to 10 mm. 1 is 0.5848 mm, and the length l of the first reflecting surface 112 in the arrangement direction of the two second sub-reflecting surfaces 1122 is 1 It is 9.0545mm.

[0045] Specifically, in one embodiment of the present invention, in combination Figures 2 to 4 The second reflecting surface 114 includes two third sub-reflecting surfaces 1141 and two fourth sub-reflecting surfaces 1142. The two third sub-reflecting surfaces 1141 and the two fourth sub-reflecting surfaces 1142 are connected in sequence to form the second reflecting surface 114. The two third sub-reflecting surfaces 1141 are arranged at intervals, and the two fourth sub-reflecting surfaces 1142 are arranged at intervals, so that the formed second reflecting surface 114 is ring-shaped.

[0046] Further, if Figure 3 and Figure 7 As shown, for the convenience of description, three mutually perpendicular coordinate axes in space are defined as the x-axis, the y-axis and the z-axis, the second generatrix L2 is located on the xy plane, the third sub-reflection surface 1141 is a curved surface obtained by translating the second generatrix L2 along the second direction (z-axis), and the fourth sub-reflection surface 1142 is a curved surface obtained by rotating the second generatrix L2 clockwise around the second rotation axis M2, thereby setting the second reflection surface 114 as a non-rotationally symmetric curved surface. Figure 7 Since the second direction is parallel to the z-axis, it can be determined that the second direction is perpendicular to the xy plane, and since the second busbar L2 is located on the xy plane, the second direction is perpendicular to the plane where the second busbar L2 is located; the second rotation axis M2 is a straight line on the xy plane, and the second rotation axis M2 is located on the concave side of the second busbar L2.

[0047] Optionally, the third sub-reflection surface 1141 is a curved surface obtained by translating the second busbar L2 by 3 to 5 coordinate units along the second direction, and the fourth sub-reflection surface 1142 is a curved surface obtained by rotating the second busbar L2 clockwise by 120° to 180° around the second rotation axis M2.

[0048] As a preferred embodiment of the present invention, the third sub-reflection surface 1141 is a curved surface obtained by translating the second bus bar L2 by 4 coordinate units along the second direction, and the fourth sub-reflection surface 1142 is a curved surface obtained by rotating the second bus bar L2 180° clockwise around the second rotation axis M2.

[0049] It should be noted that the above-mentioned coordinate units refer to the units of the coordinate axis of the function corresponding to the second bus bar L2. In the lens 110 of the embodiment of the present invention, the units of the coordinate axis of the function corresponding to the second bus bar L2 are millimeters (mm). Depending on the actual situation, the units of the coordinate axis of the function corresponding to the second bus bar L2 may also be other units, and the present invention does not limit this.

[0050] Specifically, in one embodiment of the present invention, in combination Figures 2 to 4 , the protruding direction of the second reflective surface 114 is the same as the protruding direction of the first reflective surface 112, and the height h of the second reflective surface 114 is 2 The outer diameter d of the second reflecting surface 114 in the arrangement direction of the two fourth sub-reflecting surfaces 1142 is 4 mm to 7 mm. 1 The inner diameter d of the second reflecting surface 114 in the arrangement direction of the two fourth sub-reflecting surfaces 1142 is 17 mm to 19 mm. 2 As a preferred embodiment of the present invention, the height h of the second reflective surface 114 is 9.5 mm to 11.5 mm. 2 is 5.9313 mm, and the outer diameter d of the second reflecting surface 114 in the arrangement direction of the two fourth sub-reflecting surfaces 1142 is 1 is 17.9925 mm, and the inner diameter d of the second reflecting surface 114 in the arrangement direction of the two fourth sub-reflecting surfaces 1142 is 2 It is 10.6545mm.

[0051] Specifically, in one embodiment of the present invention, Figure 4 and Figure 5 As shown, the angle α at which the refractive surface 113 is inclined relative to the bottom surface of the lens 110 is 80° to 90°. By limiting the angle α at which the refractive surface 113 is inclined relative to the bottom surface of the lens 110, the exit angle of the light beam transmitted by the refractive surface 113 can be adjusted, that is, the incident angle of the light beam when it reaches the second reflective surface 114 is adjusted, thereby adjusting the exit angle of the light beam reflected by the second reflective surface 114. In this way, the final exit angle of the light beam can be fine-tuned, so that the light distribution angle of the lens 110 of the embodiment of the present invention can reach 60°×60°, ensuring the uniformity of the light spot and effectively improving the lighting effect. As a preferred embodiment of the present invention, the angle α at which the refractive surface 113 is inclined relative to the bottom surface of the lens 110 is 84° to 86°, and more preferably, the angle α at which the refractive surface 113 is inclined relative to the bottom surface of the lens 110 is 85°.

[0052] Specifically, in one embodiment of the present invention, Figures 2 to 5As shown, an annular connecting surface 116 is provided at the opening of the groove 111, and the refractive surface 113 is connected to the second reflecting surface 114 via the connecting surface 116. In this embodiment, the width w of the connecting surface 116 is 1 As a preferred embodiment of the present invention, the width w of the connecting surface 116 is 0.5 mm to 0.7 mm. 1 It is 0.6mm.

[0053] Specifically, in one embodiment of the present invention, in the function of the first busbar L1, x 1 The value range is 2 to 16. 1 The value range of b is 0.0006~0.0008, 1 The value range is 0.02~0.04, c 1 The value range of is 0.1 to 0.3, thereby further limiting the shape of the first reflecting surface 112. By cooperating with the first reflecting surface 112 and the second reflecting surface 114, the light distribution angle of the lens 110 of the embodiment of the present invention can reach 60°×60°, thereby ensuring the uniformity of the light spot and effectively improving the lighting effect.

[0054] As a preferred embodiment of the present invention, in the function of the first busbar L1, x 1 The value range is 3.33~15.71, a 1 The value range is 0.0007, b 1 The value range is 0.0353, c 1 The value range is 0.2222.

[0055] Specifically, in one embodiment of the present invention, in the function of the second busbar L2, x 2 The value range is 2 to 22, a 2 The value range of b is 0.001~0.004, 2 The value range is 0.01~0.05, c 2 The value range of is 0.8 to 1.2. By cooperating with the first reflecting surface 112 and the second reflecting surface 114, the light distribution angle of the lens 110 of the embodiment of the present invention can reach 60°×60°, ensuring the uniformity of the light spot and effectively improving the lighting effect.

[0056] As a preferred embodiment of the present invention, in the function of the second busbar L2, x 2 The value range is 3.33~21.29, a 2 The value range is 0.0026, b 2 The value range is 0.0342, c 2 The value range is 1.0562.

[0057] Specifically, in one embodiment of the present invention, the lens 110 of the present invention further comprises an exit surface 115 disposed on a side of the lens 110 away from the groove 111, the second reflection surface 114 reflects the light beam to the exit surface 115, and the light beam is directly emitted into the environment through the exit surface 115. In this embodiment, the length l of the exit surface 115 along the arrangement direction of the two fourth sub-reflection surfaces 1142 is 2 As a preferred embodiment of the present invention, the length l of the emission surface 115 along the arrangement direction of the two fourth sub-reflection surfaces 1142 is 2 It is 19mm.

[0058] See also Fig.10 , while combining Figures 1 to 9 The embodiment of the present invention further provides a lamp, comprising the lens 110 as described above, and at least one light source 120 arranged corresponding to the groove 111 of the lens 110. Since the lamp of the embodiment of the present invention comprises the lens 110 as described above, it also has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here.

[0059] Specifically, the lamp of the embodiment of the present invention includes the lens 110 as described above, and two light sources 120 arranged corresponding to the groove 111 of the lens 110, and the spacing between the two light sources 120 is 1 mm. Compared with the existing one light source 120 arranged corresponding to one lens 110, under the same size condition, the number of light sources 120 is doubled, which is conducive to breaking the upper limit of the number of light sources 120. According to different parameter requirements, the light sources 120 can be reasonably allocated, thereby effectively improving the lighting intensity and ensuring sufficient light intensity. In this embodiment, the two light sources 120 are arranged in sequence along the connection direction of the two second sub-reflection surfaces 1122, and the lighting spots of each light source 120 are circular, and the lighting angles are 60±5°. It can be understood that the number of light sources 120 can be appropriately adjusted according to the actual situation, and the present invention is not limited here.

[0060] Optionally, in the lamp of the embodiment of the present invention, the light source 120 may be at least one of a 2835 light source or a 3030 light source, that is, the two light sources 120 may be 2835 light sources at the same time; or, the two light sources 120 may be 3030 light sources at the same time; or, one of the two light sources 120 is a 2835 light source and the other is a 3030 light source. It should be noted that the 2835 light source refers to a light source 120 with a length dimension of 3.5 mm and a width dimension of 2.8 mm; the 3030 light source refers to a light source 120 with a length dimension of 3.0 mm and a width dimension of 3.0 mm.

[0061] It is worth mentioning that in the lamp of the embodiment of the present invention, while the upper limit of the number of light sources 120 is increased, the number of light source schemes that can be matched is also increased. For example, from the original possibility of only one light source scheme to three light source schemes to choose from, one of the light source schemes that can achieve the required optical performance (luminous flux, luminous efficiency) and the cheapest light source scheme can be selected to save the cost of the light source 120. At the same time, there is no need to limit the choice of light source scheme due to the limitation of the number of light sources 120, thereby increasing the flexibility of the overall solution.

[0062] Optionally, when the two light sources 120 are both 2835 light sources, the long sides of the two 2835 light sources are parallel and placed side by side; when the two light sources 120 are both 3030 light sources, the two 3030 light sources are placed side by side.

[0063] Specifically, in one embodiment of the present invention, the lamp includes a plurality of lenses 110 as described above, and light sources 120 respectively arranged corresponding to the plurality of lenses 110 , and the lenses 110 are distributed in an array as a whole.

[0064] The above descriptions are merely optional embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A lens, characterized in that: A groove is provided at the bottom of the lens, the bottom surface of the groove is a first reflection surface, the side surface of the groove is a refractive surface, and the outer side surface of the lens is a second reflection surface; the first reflection surface and the second reflection surface are both non-rotationally symmetric curved surfaces; The first reflection surface is defined by a first generatrix translated along a first direction, and the function corresponding to the first generatrix is: , where x1 ranges from 0 to 20, a1 ranges from 0.0001 to 0.001, b1 ranges from 0.01 to 1, and c1 ranges from 0.1 to 1; The second reflection surface is defined by translating the second generatrix along the second direction, and the function corresponding to the second generatrix is: , where the value range of x2 is 0 to 30, the value range of a2 is 0.001 to 0.01, the value range of b2 is 0.01 to 0.1, and the value range of c2 is 0.5 to 1.5; The first reflecting surface comprises two first sub-reflecting surfaces and two second sub-reflecting surfaces, the first sub-reflecting surfaces and the second sub-reflecting surfaces are connected end to end in sequence to form the first reflecting surface, the two second sub-reflecting surfaces are arranged at intervals, the two first sub-reflecting surfaces are smoothly connected and arranged between the two second sub-reflecting surfaces; the three coordinate axes perpendicular to each other in space are defined as an x-axis, a y-axis and a z-axis, the first direction is parallel to the z-axis, the first direction is perpendicular to the xy plane, and the first busbar is located on the xy plane; the first rotation axis is a straight line on the xy plane, the first rotation axis is located on a side of the depression of the first busbar, and the first rotation axis does not intersect the first busbar, that is, the first rotation axis is arranged at intervals with the first busbar, the first sub-reflecting surface is a curved surface obtained by translating the first busbar along the first direction z-axis, and the second sub-reflecting surface is a curved surface obtained by rotating the first busbar clockwise around the first rotation axis, thereby setting the first reflecting surface as a non-rotationally symmetric curved surface; The second reflecting surface includes two third sub-reflecting surfaces and two fourth sub-reflecting surfaces, the third sub-reflecting surface and the fourth sub-reflecting surface are connected end to end in sequence to form the second reflecting surface, and the two third sub-reflecting surfaces are arranged at intervals, and the two fourth sub-reflecting surfaces are arranged at intervals; three coordinate axes perpendicular to each other in space are defined as an x-axis, a y-axis and a z-axis, the second busbar is located on the xy plane, the third sub-reflecting surface is a curved surface obtained by translating the second busbar along the second direction z-axis, and the fourth sub-reflecting surface is a curved surface obtained by rotating the second busbar clockwise around the second rotation axis, thereby setting the second reflecting surface to a non-rotationally symmetric curved surface; the second direction is parallel to the z-axis, the second direction is perpendicular to the xy plane, and the second busbar is located on the xy plane; the second rotation axis is a straight line on the xy plane, and the second rotation axis is located on the concave side of the second busbar.

2. The lens according to claim 1, wherein: The first direction is perpendicular to the plane where the first busbar is located, the first sub-reflection surface is a curved surface obtained by translating the first busbar along the first direction by 3 to 5 coordinate units, and the second sub-reflection surface is a curved surface obtained by rotating the first busbar by 120° to 180°.

3. The lens according to claim 1, wherein: The second direction is perpendicular to the plane where the second busbar is located, the third sub-reflection surface is a curved surface obtained by translating the second busbar along the second direction by 3 to 5 coordinate units, and the fourth sub-reflection surface is a curved surface obtained by rotating the second busbar by 120° to 180°.

4. The lens according to any one of claims 1 to 3, characterized in that: The refractive surface is inclined at an angle of 80° to 90° relative to the bottom surface of the lens.

5. The lens according to any one of claims 1 to 3, characterized in that: In the function of the first busbar, the value range of x1 is 2 to 16, the value range of a1 is 0.0006 to 0.0008, the value range of b1 is 0.02 to 0.04, and the value range of c1 is 0.1 to 0.

3.

6. The lens according to any one of claims 1 to 3, characterized in that: In the function of the second busbar, the value range of x2 is 2 to 22, the value range of a2 is 0.001 to 0.004, the value range of b2 is 0.01 to 0.05, and the value range of c2 is 0.8 to 1.

2.

7. A lamp, characterized in that: The invention comprises the lens as claimed in any one of claims 1 to 6, and a light source arranged corresponding to the groove of the lens.

8. The lamp according to claim 7, characterized in that The first reflecting surface includes two first sub-reflecting surfaces and two second sub-reflecting surfaces. Two light sources are arranged corresponding to the groove of each lens. The two light sources are arranged in sequence along the connection direction of the two second sub-reflecting surfaces. The illumination spot of each light source is circular, and the illumination angle is 60±5°.

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