Optical lenses and optical modules

Abstract

The present invention provides an optical lens. The optical lens comprises a light incident surface, a light exit surface opposite the light incident surface, and a reflective surface connected to the light incident surface and the light exit surface. The light incident surface comprises a central light incident surface, a first ambient light incident surface, a second ambient light incident surface, a third ambient light incident surface, and a fourth ambient light incident surface. The central light incident surface is a hyperbolic convex surface. The first, second, third, and fourth ambient light incident surfaces are arranged around the central light incident surface. Each of the first, second, third, and fourth ambient light incident surfaces protrudes from the central light incident surface in a direction parallel to the optical axis of the optical lens. The optical axis of the optical lens passes through the light incident surface and the light exit surface. An optical module comprising a light source and an optical lens is also provided.

Description

[Technical Field]

[0001] This invention generally relates to optical lenses and optical modules. [Background technology]

[0002] Conventional fog lamps with fisheye lenses have low energy efficiency; only a small portion of the electrical energy is converted into light energy, and the rest is converted into heat. Therefore, high-wattage light-emitting diodes (LEDs) need to provide illumination that complies with regulations. [Overview of the project] [Problems that the invention aims to solve]

[0003] Since most of the energy is converted into heat, heat dissipation fins with a larger heat dissipation area are required, making conventional fog lamps bulky. Furthermore, conventional fog lamp fisheye lenses are made from glass with a large volume and high density, resulting in a heavy overall weight. [Means for solving the problem]

[0004] According to the present invention, an optical lens is provided. An optical lens comprises a light incident surface, a light exit surface opposite the light incident surface, and a reflective surface connected to both the light incident surface and the light exit surface. The light incident surface comprises a central light incident surface, a first ambient light incident surface, a second ambient light incident surface, a third ambient light incident surface, and a fourth ambient light incident surface. The central light incidence surface is a hyperbolic convex surface. The first, second, third, and fourth ambient light incidence surfaces are arranged around the central light incidence surface. The first, second, third, and fourth ambient light incident surfaces each protrude from the central light incident surface in a direction parallel to the optical axis of the optical lens. The optical axis of the optical lens passes through the light incident surface and the light exit surface.

[0005] In one embodiment, the first ambient light incident surface and the third ambient light incident surface are symmetrical with respect to each other along the plane formed by the optical axis and the first direction, and the optical axis and the first direction are orthogonal to each other.

[0006] In one embodiment, the second ambient light incident surface and the fourth ambient light incident surface are symmetrical with respect to a plane formed by the optical axis and the second direction, and the optical axis, the first direction and the second direction are orthogonal to each other.

[0007] In one embodiment, the first ambient light incident surface, the second ambient light incident surface, the third ambient light incident surface, and the fourth ambient light incident surface are each hyperbolic convex surfaces.

[0008] In one embodiment, the angle between the optical axis of the optical lens and the axis of the first ambient light incident surface, and the angle between the optical axis of the optical lens and the axis of the third ambient light incident surface, are each in the range of approximately 53 degrees to approximately 57 degrees.

[0009] In one embodiment, the angle between the optical axis of the optical lens and the axis of the second ambient light incident surface, and the angle between the optical axis of the optical lens and the axis of the fourth ambient light incident surface, are each in the range of approximately 53 degrees to approximately 57 degrees.

[0010] In one embodiment, the axes of the first ambient light incident surface, the second ambient light incident surface, the third ambient light incident surface, and the fourth ambient light incident surface each pass through a reflective surface.

[0011] In one embodiment, the distance between the vertex of the central light incident plane and the focal point of the central light incident plane is in the range of approximately 7 mm to approximately 11 mm.

[0012] In one embodiment, the first ambient light incident surface is connected to the second ambient light incident surface, the second ambient light incident surface is connected to the third ambient light incident surface, the third ambient light incident surface is connected to the fourth ambient light incident surface, and the fourth ambient light incident surface is connected to the first ambient light incident surface.

[0013] In one embodiment, the central light incident surface has a conic constant (K) within the range from about -2.6 to about -2.4 and a curvature (C) within the range from about 0.15 m -1 to about 0.25 m -1 up to.

[0014] In one embodiment, each of the first peripheral light incident surface and the third peripheral light incident surface has a conic constant (K) within the range from about -2.7 to about -2.5 and a curvature (C) within the range from about 0.2 m -1 to about 0.3 m -1 up to.

[0015] In one embodiment, each of the second peripheral light incident surface and the fourth peripheral light incident surface has a conic constant (K) within the range from about -2.6 to about -2.4 and a curvature (C) within the range from about 0.15 m -1 to about 0.25 m -1 up to.

[0016] In one embodiment, each of the maximum included angles between the optical axis of the optical lens and the connecting line between the focus of the central light incident surface and a point on the first peripheral light incident surface, and between the optical axis of the optical lens and the connecting line between the focus of the central light incident surface and a point on the third peripheral light incident surface is within the range from about 73 degrees to about 77 degrees.

[0017] In one embodiment, each of the maximum included angles between the optical axis of the optical lens and the connecting line between the focus of the central light incident surface and a point on the second peripheral light incident surface, and between the optical axis of the optical lens and the connecting line between the focus of the central light incident surface and a point on the fourth peripheral light incident surface is within the range from about 73 degrees to about 77 degrees.

[0018] In one embodiment, the light exit surface includes a first cylindrical convex surface, a second cylindrical convex surface, and a third cylindrical convex surface that are continuously arranged along the second direction. Each of the first cylindrical convex surface, the second cylindrical convex surface, and the third cylindrical convex surface has a refractive power along the second direction and does not have a refractive power along the first direction. The optical axis, the first direction, and the second direction are orthogonal to each other.

[0019] In one embodiment, the light-emitting surface comprises a first flat surface, a first cylindrical convex surface, a second cylindrical convex surface, and a second flat surface, each of which has refractive power along the second direction but not along the first direction, and the optical axis, the first direction, and the second direction are orthogonal to each other.

[0020] In one embodiment, the light-emitting surface comprises a first flat surface, a first cylindrical convex surface, a first row of curved surfaces, a second row of curved surfaces, a second cylindrical convex surface, and a second flat surface, wherein each of the first and second cylindrical convex surfaces has refractive power along the second direction but not along the first direction, and each of the first and second rows of curved surfaces comprises a plurality of curved surfaces arranged along the first direction, and each of the curved surfaces in the first and second rows of curved surfaces has refractive power along both the first and second directions, and the optical axis, the first direction and the second direction are orthogonal to each other.

[0021] In one embodiment, the light-emitting surface comprises a first cylindrical convex surface arranged continuously along a second direction, a row of cylindrical convex surfaces, and a second cylindrical convex surface, the row of cylindrical convex surfaces comprising a third cylindrical convex surface, a fourth cylindrical convex surface, and a fifth cylindrical convex surface arranged continuously along the first direction, each of the first, second, third, fourth, and fifth cylindrical convex surfaces having refractive power along the second direction but not along the first direction, and the optical axis, the first direction, and the second direction are orthogonal to each other.

[0022] In one embodiment, the light-emitting surface includes a concave surface.

[0023] In one embodiment, the optical lens has a size ranging from approximately 46 mm to approximately 52 mm.

[0024] In one embodiment, the optical lens has a thickness ranging from approximately 15 mm to approximately 24 mm.

[0025] The present invention provides an optical module. The optical module comprises a light source and an optical lens. The optical lens is disposed on the light transmission path of the light source. The optical lens comprises a light incident surface, a light exit surface opposite to the light incident surface, and a reflective surface connected to the light incident surface and the light exit surface. The light incident surface comprises a central light incident surface, a first ambient light incident surface, a second ambient light incident surface, a third ambient light incident surface, and a fourth ambient light incident surface. The central light incident surface is a hyperbolic convex surface. The first, second, third, and fourth ambient light incident surfaces are disposed around the central light incident surface. Each of the first, second, third, and fourth ambient light incident surfaces protrudes from the central light incident surface in a direction parallel to the optical axis of the optical lens. The optical axis of an optical lens passes through the light incident surface and the light emission surface.

[0026] In one embodiment, the light source is positioned at the focal point of the central light incident plane.

[0027] In one embodiment, the distance between the vertex of the central light incident surface and the light source in a direction parallel to the optical axis of the optical lens is in the range of approximately 7 mm to approximately 11 mm.

[0028] In one embodiment, the first ambient light incident surface and the third ambient light incident surface are symmetrical with respect to each other along the plane formed by the optical axis and the first direction, and the optical axis and the first direction are orthogonal to each other.

[0029] In one embodiment, the second ambient light incident surface and the fourth ambient light incident surface are symmetrical with respect to a plane formed by the optical axis and the second direction, and the optical axis, the first direction and the second direction are orthogonal to each other.

[0030] In one embodiment, the first ambient light incident surface, the second ambient light incident surface, the third ambient light incident surface, and the fourth ambient light incident surface are each hyperbolic convex surfaces.

[0031] In one embodiment, the angle between the optical axis of the optical lens and the axis of the first ambient light incident surface, and the angle between the optical axis of the optical lens and the axis of the third ambient light incident surface, are each in the range of approximately 53 degrees to approximately 57 degrees.

[0032] In one embodiment, the angle between the optical axis of the optical lens and the axis of the second ambient light incident surface, and the angle between the optical axis of the optical lens and the axis of the fourth ambient light incident surface, are each in the range of approximately 53 degrees to approximately 57 degrees.

[0033] In one embodiment, the axes of the first ambient light incident surface, the second ambient light incident surface, the third ambient light incident surface, and the fourth ambient light incident surface each pass through a reflective surface.

[0034] In one embodiment, the first ambient light incident surface is connected to the second ambient light incident surface, the second ambient light incident surface is connected to the third ambient light incident surface, the third ambient light incident surface is connected to the fourth ambient light incident surface, and the fourth ambient light incident surface is connected to the first ambient light incident surface.

[0035] In one embodiment, the central light incident plane has a cone constant (K) in the range of approximately -2.6 to approximately -2.4 and approximately 0.15 m -1 Approximately 0.25m from -1 It has a curvature (C) within the range of up to .

[0036] In one embodiment, the maximum angle between the optical axis of the optical lens and the connecting line between the focal point of the central light incident plane and a point on the first ambient light incident plane, and the maximum angle between the optical axis of the optical lens and the connecting line between the focal point of the central light incident plane and a point on the third ambient light incident plane, are both within the range of approximately 73 degrees to approximately 77 degrees.

[0037] In one embodiment, the maximum angle between the optical axis of the optical lens and the connecting line between the focal point of the central light incident plane and a point on the second ambient light incident plane, and the maximum angle between the optical axis of the optical lens and the connecting line between the focal point of the central light incident plane and a point on the fourth ambient light incident plane, are both within the range of approximately 73 degrees to approximately 77 degrees.

[0038] In one embodiment, the optical lens has a size ranging from approximately 46 mm to approximately 52 mm.

[0039] In one embodiment, the optical lens has a thickness ranging from approximately 15 mm to approximately 24 mm.

[0040] In one embodiment, the light source has a size in the range of approximately 1.00 mm to approximately 1.10 mm.

[0041] In one embodiment, the light source is square in shape.

[0042] The accompanying drawings are included to provide a further understanding of the invention and are incorporated into and constitute a part of this specification. The drawings illustrate exemplary embodiments of the invention and, together with this specification, serve to illustrate the principles of the invention. [Brief explanation of the drawing]

[0043] [Figure 1A] This is a schematic cross-sectional view of an optical module according to a first embodiment of the present invention. [Figure 1B] This is a schematic cross-sectional view of an optical module along a different cross-section according to a first embodiment of the present invention. [Figure 1C] This is a schematic three-dimensional diagram of an optical lens according to a first embodiment of the present invention. [Figure 1D] This is a schematic three-dimensional view of an optical lens from another perspective, according to a first embodiment of the present invention. [Figure 1E] This is a schematic front view of an optical module according to a first embodiment of the present invention. [Figure 2A] This is a schematic cross-sectional view of an optical module according to a second embodiment of the present invention. [Figure 2B] This is a schematic three-dimensional diagram of an optical lens according to a second embodiment of the present invention. [Figure 2C] This is a schematic three-dimensional view of an optical lens from another perspective, according to a second embodiment of the present invention. [Figure 3A]This is a schematic cross-sectional view of an optical module according to a third embodiment of the present invention. [Figure 3B] This is a schematic three-dimensional diagram of an optical lens according to a third embodiment of the present invention. [Figure 3C] This is a schematic three-dimensional view of an optical lens from another perspective, according to a third embodiment of the present invention. [Figure 4A] This is a schematic cross-sectional view of an optical module according to a fourth embodiment of the present invention. [Figure 4B] This is a schematic three-dimensional diagram of an optical lens according to a fourth embodiment of the present invention. [Figure 4C] This is a schematic three-dimensional view of an optical lens from another perspective, according to a fourth embodiment of the present invention. [Figure 5A] This is a schematic cross-sectional view of an optical module according to a fifth embodiment of the present invention. [Figure 5B] This is a schematic three-dimensional diagram of an optical lens according to a fifth embodiment of the present invention. [Modes for carrying out the invention]

[0044] Figure 1A is a schematic cross-sectional view of an optical module according to a first embodiment of the present invention, and Figure 1B is a schematic cross-sectional view of an optical module along a different cross-section. Figure 1C is a schematic three-dimensional view of an optical lens according to a first embodiment of the present invention, Figure 1D is a schematic three-dimensional view of the optical lens from another view, and Figure 1E is a schematic front view of an optical module. Referring to Figures 1A to 1E, in this embodiment, the optical module OM1 includes a light source 100 and an optical lens 200. The optical lens 200 can be placed on the light transmission path of the light source 100. The light source 100 may include an LED module. However, the present invention is not limited thereto. The optical lens 200 can be made from a plastic material with a lower density, such as polycarbonate (PC), polymethyl methacrylate (PMMA), or silicone. Therefore, the size and / or weight of the optical lens 200 (and the size and / or weight of the optical module OM1) can be reduced. However, the present invention is not limited thereto. In another embodiment, the optical lens 200 may be made from other transparent materials such as glass, quartz, or silicone.

[0045] The optical lens 200 comprises a light incident surface 210, a light emission surface 230 opposite to the light incident surface 210, and a reflective surface 270 connected to the light incident surface 210 and the light emission surface 230. The optical axis OA of the optical lens 200 passes through the light incident surface 210 and the light emission surface 230. As shown in Figures 1A and 1B, the light incident surface 210 comprises a central light incident surface 211, a first ambient light incident surface 221, a second ambient light incident surface 222, a third ambient light incident surface 223, and a fourth ambient light incident surface 224. The first ambient light incident surface 221, the second ambient light incident surface 222, the third ambient light incident surface 223, and the fourth ambient light incident surface 224 are arranged around the central light incident surface 211.

[0046] As shown in Figures 1A and 1B, the first ambient light incident surface 221, the second ambient light incident surface 222, the third ambient light incident surface 223, and the fourth ambient light incident surface 224 are discontinuous with the central light incident surface 211 in the sense that, without considering manufacturing tolerances and the transitional connection surfaces (multiple) between them, the curved portions at the junctions between the central light incident surface 211 and each of the first ambient light incident surface 221, the second ambient light incident surface 222, the third ambient light incident surface 223, and the fourth ambient light incident surface 224 may be discontinuous.

[0047] The first ambient light incident surface 221, the second ambient light incident surface 222, the third ambient light incident surface 223, and the fourth ambient light incident surface 224 each protrude in a third direction D3 parallel to the optical axis OA of the optical lens 220 relative to the central light incident surface 211. As shown in Figure 1A, at least a portion of the first ambient light incident surface 221 extends beyond the vertex 213 of the central light incident surface 211 in the third direction D3, and at least a portion of the third ambient light incident surface 223 extends beyond the vertex 213 of the central light incident surface 211 in the third direction D3. As shown in Figure 1B, at least a portion of the second ambient light incident surface 222 extends beyond the vertex 213 of the central light incident surface 211 in the third direction D3, and at least a portion of the fourth ambient light incident surface 224 extends beyond the vertex 213 of the central light incident surface 211 in the third direction D3.

[0048] Referring to Figures 1A and 1C, the first ambient light incident surface 221 and the third ambient light incident surface 223 can be symmetrical with respect to each other along the plane formed by the optical axis OA and the first direction D1 perpendicular to the optical axis OA. In other words, the first ambient light incident surface 221 and the third ambient light incident surface 223 can be configured as mirror images of each other along the plane between the first ambient light incident surface 221 and the third ambient light incident surface 223.

[0049] Referring to Figures 1B and 1C, the second ambient light incident surface 222 and the fourth ambient light incident surface 224 can also be symmetrical with respect to each other along the plane formed by the optical axis OA and the second direction D2 perpendicular to the optical axis OA. In other words, the second ambient light incident surface 222 and the fourth ambient light incident surface 224 can be configured as mirror images of each other along the plane between the second ambient light incident surface 222 and the fourth ambient light incident surface 225. The first direction D1 and the second direction D2 can be orthogonal to each other.

[0050] The central light incidence surface 211 can be a hyperbolic convex surface. In this invention, the term "hyperbolic convex surface" refers to the convex surface of one of the shapes of a "bifurcated hyperbolic surface," and the surface sag of a hyperbolic convex surface is given by equation (1): While it can be represented by TIFF2026520880000002.tif12150, k is a real number less than -1 (k<-1), In the formula, Z represents the sag of the surface parallel to the axis of symmetry. C represents the curvature of the surface. s represents the radial distance from the axis of symmetry, k represents the cone constant.

[0051] As shown in Figures 1A to 1C, the optical lens 200 may be configured such that the axis of symmetry of the central light incident surface 211 coincides with the optical axis OA of the optical lens 200.

[0052] The light incident surface, including the central light incident surface and the ambient light incident surface configured as described above, can increase the energy efficiency of the optical module and / or, in combination with other features of the optical module, can produce a desired light output. With the above configuration of the light incident surface, light emitted at a larger angle can be collected and focused by the optical lens, while the optical lens itself is relatively small in size. Furthermore, optical lenses configured as described herein can be easily manufactured with higher precision, for example, by molding.

[0053] As shown in Figures 1A and 1B, the first ambient light incident surface 221, the second ambient light incident surface 222, the third ambient light incident surface 223, and the fourth ambient light incident surface 224 may be discontinuous from each other in the sense that, without considering manufacturing tolerances and the transitional connection surfaces (multiple possible) between them, there may be discontinuities in the curved portions at the joints between the first ambient light incident surface 221 and the second ambient light incident surface 222, the joints between the second ambient light incident surface 222 and the third ambient light incident surface 223, the joints between the third ambient light incident surface 223 and the fourth ambient light incident surface 224, and the joint between the fourth ambient light incident surface 224 and the first ambient light incident surface 221. In other words, the central light incidence plane 211 is surrounded by four or more discontinuous ambient light incidence planes. The above-described configuration of the ambient light incidence surface can focus light emitted at larger angles, resulting in a more desirable light output and / or further increasing the energy efficiency of the optical module.

[0054] In the embodiments shown in Figures 1A to 1E, the first ambient light incident surface 221 is connected to the second ambient light incident surface 222, the second ambient light incident surface 222 is connected to the third ambient light incident surface 223, the third ambient light incident surface 223 is connected to the fourth ambient light incident surface 224, and the fourth ambient light incident surface 224 is connected to the first ambient light incident surface 221, so that the optical lens 200 includes only four ambient light incident surfaces. In such a configuration, the optical lens can achieve better optical effects, such as higher efficiency and / or more desirable light distribution, especially when the optical lens is used in combination with a square light source. Furthermore, it allows for easier control of the light distribution emitted from the optical lens while maintaining relatively high efficiency. However, the present invention is not limited thereto. In other embodiments, the optical lens may include six ambient light incident surfaces, eight ambient light incident surfaces, ten ambient light incident surfaces, twelve ambient light incident surfaces, or any other number of ambient light incident surfaces. Furthermore, in some embodiments, transitional connection surfaces may exist between ambient light incident surfaces, and ambient light incident surfaces may be connected to other ambient light incident surfaces through these transitional connection surfaces.

[0055] As shown in Figures 1A and 1C, the first ambient light incident surface 221 can be a hyperbolic convex surface, and the third ambient light incident surface 223 can be a hyperbolic convex surface. As shown in Figures 1B and 1C, the second ambient light incident surface 222 can be a hyperbolic convex surface, and the fourth ambient light incident surface 224 can be a hyperbolic convex surface. The above-described configuration of the ambient light incidence surface can focus light emitted at larger angles, resulting in a more desirable light output and / or further increasing the energy efficiency of the optical module.

[0056] In the embodiments shown in Figures 1A to 1E, the first ambient light incident surface 221 is angled with respect to the optical axis OA. In other words, the angle θ1 between the optical axis OA of the optical lens 200 and the axis A1 of the first ambient light incidence surface 221 (for example, the axis of symmetry of a hyperbolic convex surface) is greater than zero. Similarly, the second peripheral light incident surface 222 is angled with respect to the optical axis OA, and the included angle θ2 between the optical axis OA of the optical lens 200 and the axis A2 of the second peripheral light incident surface 222 (for example, the symmetry axis of the hyperbolic convex surface) is greater than zero. The third peripheral light incident surface 223 is angled with respect to the optical axis OA, and the included angle θ3 between the optical axis OA of the optical lens 200 and the axis A3 of the third peripheral light incident surface 223 (for example, the symmetry axis of the hyperbolic convex surface) is greater than zero. The fourth peripheral light incident surface 224 is angled with respect to the optical axis OA, and the included angle θ4 between the optical axis OA of the optical lens 200 and the axis A4 of the fourth peripheral light incident surface 224 (for example, the symmetry axis of the hyperbolic convex surface) is greater than zero.

[0057] In some embodiments, the central light incident surface 211 has a conic constant (K) within the range from about -2.8 to about -2.2, or in some embodiments within the range from about -2.6 to about -2.4. For example, the central light incident surface 211 has a conic constant of about -2.5. In some embodiments, the central light incident surface 211 is about 0.1m -1 to about 0.3m -1 or in some embodiments about 0.15m -1 to about 0.25m -1 and has a curvature (C) within this range. For example, the central light incident surface 211 has a curvature of about 0.2m -1 . These values are merely examples and are not intended to be limiting.

[0058] As shown in FIGS. 1A and 1B, the central light incident surface 211 may have a focal point F1 on the front surface of the optical lens 200. Specifically, with respect to the hyperbola from which the hyperbolic convex surface is generated, one of the two focal points (the far focal point) may have a longer distance from the vertex than the other focal point (the near focal point), and the far focal point may be located on the front surface of the hyperbolic convex surface of the central light incident surface 211 of the optical lens 200. In one embodiment, the distance between the vertex 213 of the central light incident plane 211 and the focal point F1 of the central light incident plane 211 is in the range of approximately 7 mm to approximately 11 mm. For example, the distance between the vertex 213 of the central light incident plane 211 and the focal point F1 can be approximately 9 mm.

[0059] In some embodiments, the first ambient light incident surface 221 has a cone constant (K) in the range of about -2.9 to about -2.3, or in some embodiments, in the range of about -2.7 to about -2.5. For example, the first ambient light incident surface 221 has a cone constant of approximately -2.6. In some embodiments, the first ambient light incident surface 221 is approximately 0.15 m -1 Approximately 0.35m from -1 Up to, or in some embodiments, about 0.2 m -1 From approximately 0.3m -1 It has a curvature (C) within the range of up to . For example, the first ambient light incident surface 221 is approximately 0.25 m -1 It has a curvature of . In some embodiments, the angle θ1 between the optical axis OA of the optical lens 200 and the axis A1 of the first ambient light incident surface 221 is in the range of about 50 to about 60 degrees, or in some embodiments, in the range of about 53 to about 57 degrees. For example, the angle θ1 can be approximately 55 degrees.

[0060] In some embodiments, the second ambient light incident surface 222 has a cone constant (K) in the range of about -2.8 to about -2.2, or in some embodiments, in the range of about -2.6 to about -2.4. For example, the second ambient light incident surface 222 has a cone constant of approximately -2.5. In some embodiments, the second ambient light incident surface 222 is approximately 0.1 m -1 From approximately 0.3m -1 Up to, or in some embodiments, about 0.15 m -1 Approximately 0.25m from -1 It has a curvature (C) within the range of up to . For example, the second ambient light incident surface 222 is approximately 0.20 m -1 It has a curvature of . In some embodiments, the angle θ2 between the optical axis OA of the optical lens 200 and the axis A2 of the second ambient light incident surface 222 is in the range of about 50 to about 60 degrees, or in some embodiments, in the range of about 53 to about 57 degrees. For example, the angle θ2 can be approximately 55 degrees.

[0061] In some embodiments, the third ambient light incident surface 223 has a cone constant (K) in the range of about -2.9 to about -2.3, or in some embodiments, in the range of about -2.7 to about -2.5. For example, the third ambient light incident surface 223 has a cone constant of approximately -2.6. In some embodiments, the third ambient light incident surface 223 is approximately 0.15 m -1 Approximately 0.35m from -1 Up to, or in some embodiments, about 0.2 m -1 From approximately 0.3m -1 It has a curvature (C) within the range of up to . For example, the third ambient light incident surface 223 is approximately 0.25 m -1 It has a curvature of . In some embodiments, the angle θ3 between the optical axis OA of the optical lens 200 and the axis A3 of the third ambient light incident surface 223 is in the range of about 50 to about 60 degrees, or in some embodiments, in the range of about 53 to about 57 degrees. For example, the angle θ3 can be approximately 55 degrees.

[0062] In some embodiments, the fourth ambient light incident surface 224 has a cone constant (K) in the range of about -2.8 to about -2.2, or in some embodiments, in the range of about -2.6 to about -2.4. For example, the fourth ambient light incident surface 224 is approximately -2.5 m -1 It has a cone constant of . In some embodiments, the fourth ambient light incident surface 224 is approximately 0.1 m -1 From approximately 0.3m -1Up to, or in some embodiments, about 0.15 m -1 Approximately 0.25m from -1 It has a curvature (C) within the range of up to . For example, the fourth ambient light incident surface 224 is approximately 0.20 m -1 It has a curvature of . In some embodiments, the angle θ4 between the optical axis OA of the optical lens 200 and the axis A4 of the fourth ambient light incident surface 224 is in the range of about 50 to about 60 degrees, or in some embodiments, in the range of about 53 to about 57 degrees. For example, the angle θ4 can be approximately 55 degrees.

[0063] As shown in Figure 1A, in some embodiments, the axis A1 of the first ambient light incident surface 221 passes through the focal point F1 of the central light incident surface 211, and the axis A3 of the third ambient light incident surface 223 passes through the focal point F1 of the central light incident surface 211. However, the present invention is not limited thereto. In one embodiment, the focal point of the first ambient light incident surface 221 on the front surface of the optical lens 200 may coincide with the focal point F1 of the central light incident surface 211. In one embodiment, the focal point of the third ambient light incident surface 223 on the front surface of the optical lens 200 may coincide with the focal point F1 of the central light incident surface 211. However, the present invention is not limited thereto.

[0064] As shown in Figure 1B, in some embodiments, the axis A2 of the second ambient light incident surface 222 passes through the focal point F1 of the central light incident surface 211, and the axis A4 of the fourth ambient light incident surface 224 passes through the focal point F1 of the central light incident surface 211. However, the present invention is not limited thereto. In one embodiment, the focal point of the second ambient light incident surface 222 on the front surface of the optical lens 200 may coincide with the focal point F1 of the central light incident surface 211. In one embodiment, the focal point of the fourth ambient light incident surface 224 on the front surface of the optical lens 200 may coincide with the focal point F1 of the central light incident surface 211. However, the present invention is not limited thereto.

[0065] The above-described configuration of the light incident surface allows the optical lens to maintain a relatively small size and thickness while producing the desired light output and / or increasing the energy efficiency of the optical module.

[0066] As shown in Figures 1A and 1C, the first ambient light incident surface 221 is configured such that the maximum narrow angle θM1 between the optical axis OA of the optical lens 200 and the connecting line between the focal point F1 of the central light incident surface 221 and a point on the first ambient light incident surface 221 is in the range of about 67 to about 83 degrees, or in some embodiments, in the range of about 73 to about 77 degrees. For example, the maximum angle θM1 can be approximately 75 degrees. Similarly, the third ambient light incident surface 223 is configured such that the maximum narrow angle θM3 between the optical axis OA of the optical lens 200 and the connecting line between the focal point F1 of the central light incident surface 223 and a point on the third ambient light incident surface 223 is in the range of about 67 to about 83 degrees, or in some embodiments, in the range of about 73 to about 77 degrees. For example, the maximum angle Mθ3 can be approximately 75 degrees.

[0067] As shown in Figures 1B and 1C, the second ambient light incident surface 222 is configured such that the maximum narrow angle θM2 between the optical axis OA of the optical lens 200 and the connecting line between the focal point F1 of the central light incident surface 211 and a point on the second ambient light incident surface 222 is in the range of about 67 to about 83 degrees, or in some embodiments, in the range of about 73 to about 77 degrees. For example, the maximum angle Mθ2 can be approximately 75 degrees. Similarly, the fourth ambient light incident surface 224 is configured such that the maximum narrow angle θM4 between the optical axis OA of the optical lens 200 and the connecting line between the focal point F1 of the central light incident surface 211 and a point on the fourth ambient light incident surface 224 is in the range of about 67 to about 83 degrees, or in some embodiments, in the range of about 73 to about 77 degrees. For example, the maximum angle Mθ4 can be approximately 75 degrees. Therefore, the optical modules described herein can have relatively high energy efficiency, while the thickness of the optical lenses is also desirable.

[0068] In some embodiments, the optical lens 200 has a thickness t1 ranging from about 12 mm to about 27 mm, or in some embodiments ranging from about 15 mm to about 24 mm. For example, the optical lens 200 may have a thickness t1 of approximately 22.5 mm. However, the present invention is not limited thereto.

[0069] Referring to Figure 1D, in this embodiment, the light-emitting surface 230 of the optical lens 200 comprises a first cylindrical convex surface 231, a second cylindrical convex surface 232, and a third cylindrical convex surface 233, which are continuously arranged along the second direction D2. The optical axis OA may pass through the second cylindrical convex surface 232. The cylindrical surfaces described herein may be elliptical cylindrical surfaces, parabolic cylindrical surfaces, hyperbolic cylindrical surfaces, and the like. The present invention is not limited thereto. Each of the first cylindrical convex surface 231, the second cylindrical convex surface 232, and the third cylindrical convex surface 233 has a refractive force along the second direction D2, but no refractive force along the first direction D1. However, the present invention is not limited thereto. The configuration of the light-emitting surface can be designed according to the actual needs (for example, to obtain a desired light output pattern). In other embodiments, the first cylindrical convex surface, the second cylindrical convex surface, and / or the third cylindrical convex surface may be adjusted so that the surface has a refractive force along the first direction D1.

[0070] In the embodiments shown in Figures 1A to 1E, the reflective surface 270 may include a first reflective surface 271, a second reflective surface 272, a third reflective surface 273, and a fourth reflective surface 274. The first reflective surface 271 is connected to the first ambient light incident surface 211, the second reflective surface 272 is connected to the second ambient light incident surface 222, the third reflective surface 273 is connected to the third ambient light incident surface 223, and the fourth reflective surface 274 is connected to the fourth ambient light incident surface 224. In this embodiment, the first reflective surface 271, the second reflective surface 272, the third reflective surface 273, and the fourth reflective surface 274 are all flat surfaces. However, the present invention is not limited thereto. The specific configuration of the reflective surface can be designed based on actual needs.

[0071] The light incident from the light incident surface 210 to the optical lens 200 can be reflected and redirected towards the light output surface 230 through the reflective surface 270. With respect to a portion of the incident light, total internal reflection may occur on a portion of the reflective surface 270, which can increase the energy efficiency of the optical module OM1.

[0072] In some embodiments, the optical lens 200 may further include a support portion 280. In some embodiments, the reflective surface 270 may extend to the support portion 280 so that the reflective surface 270 is connected to the light-emitting surface 230.

[0073] In some embodiments, the axis A1 of the first ambient light incident surface 221, the axis A2 of the second ambient light incident surface 222, the axis A3 of the third ambient light incident surface 223, and the axis A4 of the fourth ambient light incident surface 224 each pass through the reflective surface 270. As shown in Figure 1A, the axis A1 of the first ambient light incident surface 221 passes through the first reflecting surface 271, and the axis A3 of the third ambient light incident surface 223 passes through the third reflecting surface 273. As shown in Figure 1B, the axis A2 of the second ambient light incident surface 222 passes through the second reflecting surface 272, and the axis A4 of the fourth ambient light incident surface 224 passes through the fourth reflecting surface 274. However, the present invention is not limited thereto.

[0074] As shown in Figure 1A, the light source 100 can be positioned at the focal point F1 of the central light incident surface 211. In one embodiment, the distance d1 in a third direction D3 parallel to the optical axis OA of the optical lens 200 between the vertex 213 of the central light incident plane 211 and the light source 100 is in the range of about 5 mm to about 13 mm, or in some embodiments, in the range of about 7 mm to about 11 mm. For example, the distance d1 can be approximately 9 mm. In such a configuration, the light emitted from the light source 100 can be better collected and focused by the optical lens, potentially resulting in a more energy-efficient optical module.

[0075] Referring to Figure 1E, in one embodiment, the light source 100 has a size d2 in the range of about 0.80 mm to about 1.30 mm, or in some embodiments, in the range of about 1.00 mm to about 1.10 mm. For example, the light source 100 has a size d2 of approximately 1.06 mm. In one embodiment, the optical lens 200 has a size d3 in the range of about 43 mm to about 55 mm, or in some embodiments, in the range of about 46 mm to about 52 mm. For example, optical lens 200 has a size d3 of approximately 49.7 mm. The sizes discussed herein may refer to the diagonal lengths (etc.) of the elements shown in Figure 1E. As explained above, optical lenses, and therefore optical modules, may have a reduced size while still achieving the desired optical efficiency due to the configuration and / or materials of the optical lenses.

[0076] Referring to Figure 1E, in one embodiment, the light source 100 is square in shape. As shown in Figure 1E, each side of the light source 100 can correspond to its respective ambient light incidence surface. However, the present invention is not limited thereto. As shown in Figures 1A and 1E, the light source 100 can be positioned on the optical axis OA of the optical lens 200.

[0077] The above configuration of the optical module makes it possible to achieve higher energy efficiency for the optical module. In one embodiment, the energy efficiency of the optical module can be approximately 77%, and the energy efficiency is calculated by the ratio of light emitted from the optical module to light emitted from the light source. Therefore, it is possible to use a light source with less power, and to reduce the amount of heat generated by the light source. As a result, smaller heat dissipation devices can be used, and the lifespan of the optical module can also be extended. The optical module OM1 of the first embodiment can produce a long, bright streak at a distance of 25m and can be used as a fog lamp for vehicles and / or motorcycles. However, the present invention is not limited thereto.

[0078] Figure 2A is a schematic cross-sectional view of an optical module according to a second embodiment of the present invention, Figure 2B is a schematic three-dimensional view of an optical lens, and Figure 2C is a schematic three-dimensional view of an optical lens from another perspective. The optical module OM2 in Figure 2A may be substantially the same as the optical module OM1 in Figure 1A, the optical lens 200A shown in Figures 2A to 2C may be substantially the same as the optical lens 200 shown in Figures 1A to 1C, and the same reference numerals indicate the same elements. In this embodiment, the optical module OM2 includes a light source 100 and an optical lens 200A. The optical lens 200A comprises a light incident surface 210, a light emission surface 240 opposite to the light incident surface 210, and a reflective surface 270' connected to the light incident surface 210 and the light emission surface 240.

[0079] As shown in Figures 2A to 2C, the light-emitting surface 240 comprises a first flat surface 241, a first cylindrical convex surface 242, a second cylindrical convex surface 243, and a second flat surface 244, all arranged continuously along the second direction D2. The optical axis OA may pass through the junction between the first cylindrical convex surface 241 and the second cylindrical convex surface 242. The first cylindrical convex surface 241 and the second cylindrical convex surface 242 each have a refractive force along the second direction D2 but no refractive force along the first direction D1. However, in other embodiments, the first cylindrical convex surface and / or the second cylindrical convex surface may be adjusted so that these surfaces have a refractive force along the first direction D1.

[0080] In the embodiments shown in Figures 2A to 2C, the reflective surface 270' may include a first reflective surface 271', a second reflective surface 272, a third reflective surface 273', and a fourth reflective surface 274. In this embodiment, the first reflective surface 271' includes a first portion 271'-1 connected to the light incident surface 210 and a second portion 271'-2 connected to the light emission surface 240. Each of the first reflective surface 271', the first portion 271'-1 and the second portion 271'-2, may include a cylindrical concave surface. As shown in Figure 2A, in a cross-sectional view along the plane formed by the optical axis OA and the second direction D2, the angle between the first portion 271'-1 of the first reflective surface 271' and the optical axis OA can be greater than the angle between the second portion 271'-2 of the first reflective surface 271' and the optical axis OA. The third reflective surface 273' includes a first portion 273'-1 connected to the light incident surface 210 and a second portion 273'-2 connected to the light emission surface 240. Each of the first portion 273'-1 and the second portion 273'-2 of the third reflective surface 273' may include a cylindrical concave surface. As shown in Figure 2A, in a cross-sectional view along the plane formed by the optical axis OA and the second direction D2, the angle between the first portion 273'-1 of the third reflective surface 273' and the optical axis OA can be greater than the angle between the second portion 273'-2 of the third reflective surface 273' and the optical axis OA. However, the present invention is not limited thereto. The specific configuration of the reflective surface can be designed based on actual needs.

[0081] The optical module OM2 of the second embodiment can produce a long, bright streak at a distance of 25m and can be used as a fog lamp for vehicles and / or motorcycles. In this embodiment, the optical lens 200A may have a size of approximately 49.8 mm and a thickness of approximately 18.2 mm. The energy efficiency of the OM2 optical module can be approximately 77%. However, the present invention is not limited thereto.

[0082] Figure 3A is a schematic cross-sectional view of an optical module according to a third embodiment of the present invention, Figure 3B is a schematic three-dimensional view of an optical lens, and Figure 3C is a schematic three-dimensional view of the optical module from another view. The optical module OM3 in Figure 3A may be substantially the same as the optical module OM2 in Figure 2A, the optical lens 200B shown in Figures 3A to 3C may be substantially the same as the optical lens 200A shown in Figures 2A to 2C, and the same reference numerals indicate the same elements. In this embodiment, the optical module OM3 includes a light source 100 and an optical lens 200B. The optical lens 200B comprises a light incident surface 210, a light emission surface 250 opposite to the light incident surface 210, and a reflective surface 270'' connected to the light incident surface 210 and the light emission surface 250.

[0083] In the embodiments shown in Figures 3A to 3C, the reflective surface 270'' may include a first reflective surface 271'', a second reflective surface 272, a third reflective surface 273'', and a fourth reflective surface 274. In this embodiment, the first reflective surface 271'' includes a first portion 271''-1 connected to the light incident surface 210 and a second portion 271''-2 connected to the light emission surface 250. Each of the first reflective surface 271'', the first portion 271''-1 and the second portion 271''-2, may include a cylindrical concave surface. As shown in Figure 3A, in a cross-sectional view along the plane formed by the optical axis OA and the second direction D2, the angle between the first portion 271''-1 of the first reflective surface 271'' and the optical axis OA may be smaller than the angle between the second portion 271''-2 of the first reflective surface 271'' and the optical axis OA. The third reflective surface 273'' includes a first portion 273''-1 connected to the light incident surface 210 and a second portion 273''-2 connected to the light emission surface 250. Each of the first portion 273''-1 and the second portion 273''-2 of the third reflective surface 273'' may include a cylindrical concave surface. As shown in Figure 3A, in a cross-sectional view along the plane formed by the optical axis OA and the second direction D2, the angle between the first portion 273''-1 of the third reflective surface 273'' and the optical axis OA may be smaller than the angle between the second portion 273''-2 of the third reflective surface 273'' and the optical axis OA. However, the present invention is not limited thereto. The specific configuration of the reflective surface can be designed based on actual needs.

[0084] As shown in Figures 3A to 3C, the light-emitting surface 250 comprises a first flat surface 251, a first cylindrical convex surface 252, a first row of curved surfaces 253, a second row of curved surfaces 255, a second cylindrical convex surface 256, and a second flat surface 257, all arranged continuously along a second direction D2. The first cylindrical convex surface 251 and the second cylindrical convex surface 252 each have a refractive force along the second direction D2 but no refractive force along the first direction D1. However, in other embodiments, the first cylindrical convex surface and / or the second cylindrical convex surface may be adjusted so that these surfaces have a refractive force along the first direction D1. Alternatively, in some other embodiments, the first cylindrical convex surface and / or the second cylindrical convex surface may be replaced by a plurality of curved surfaces. Each of the first row 253 and the second row 255 of the curved surfaces comprises a plurality of curved surfaces arranged along a first direction D1, and each of the curved surfaces in the first row 253 and the second row 255 of the curved surfaces has a refractive force along both the first direction D1 and the second direction D2. In one embodiment, the curved surfaces of the first row 253 and the curved surfaces of the second row 255 are convex.

[0085] In the embodiments shown in Figures 3A to 3C, the light-emitting surface 250 may further include a third cylindrical convex surface 254 between the first row of curved surfaces 253 and the second row of curved surfaces 255. The optical axis OA may pass through the third cylindrical convex surface 254. In some other embodiments, the third cylindrical convex surface 254 can be replaced with a flat surface, a cylindrical concave surface, or a row of curved surfaces.

[0086] The optical module OM3 of the third embodiment can produce a long, bright streak at a distance of 25m and can be used as a fog lamp for vehicles and / or motorcycles. In this embodiment, the optical lens 200B may have a size of approximately 49.7 mm and a thickness of approximately 17.6 mm. The energy efficiency of the OM3 optical module can be approximately 77%. However, the present invention is not limited thereto.

[0087] Figure 4A is a schematic cross-sectional view of an optical module according to a fourth embodiment of the present invention, Figure 4B is a schematic three-dimensional view of an optical lens, and Figure 4C is a schematic three-dimensional view of an optical lens from another perspective. The optical module OM4 in Figure 4A may be substantially the same as the optical module OM1 in Figure 1A, the optical lens 200D shown in Figures 4A to 4C may be substantially the same as the optical lens 200 shown in Figures 1A to 1C, and the same reference numerals indicate the same elements. In this embodiment, the optical module OM4 includes a light source 100 and an optical lens 200D. The optical lens 200D comprises a light incident surface 210, a light emission surface 260 opposite to the light incident surface 210, and a reflective surface 270 connected to the light incident surface 210 and the light emission surface 260.

[0088] As shown in Figures 4A to 4C, the light-emitting surface 260 comprises a first cylindrical convex surface 261, a row of cylindrical convex surfaces 262, and a second cylindrical convex surface 262, which are arranged continuously along a second direction D2. The row of cylindrical convex surfaces 262 comprises a third cylindrical convex surface 262a, a fourth cylindrical convex surface 262b, and a fifth cylindrical convex surface 262c, which are arranged continuously along a first direction D1. The optical axis OA may pass through the fourth cylindrical convex surface 262b. The curvature of the fourth cylindrical convex surface 262b is greater than the curvature of the third cylindrical convex surface 262a and the curvature of the fifth cylindrical convex surface 262c. Each of the first cylindrical convex surface 261, the second cylindrical convex surface 263, the third cylindrical convex surface 262a, the fourth cylindrical convex surface 262b, and the fifth cylindrical convex surface 262c has a refractive force along the second direction D2 but no refractive force along the first direction D1. However, in other embodiments, the first, second, third, fourth, and / or fifth cylindrical convex surfaces can be adjusted so that these surfaces have a refractive force along the first direction D1.

[0089] The optical module OM4 of the fourth embodiment can produce a long, bright streak at a distance of 25m and can be used as a high beam light for a vehicle and / or motorcycle. In some embodiments, the optical lens 200C has a thickness ranging from about 15 mm to about 24 mm, or in some embodiments, from about 16 mm to about 21 mm. In this embodiment, the optical lens 200C may have a size of approximately 51.2 mm and a thickness of approximately 19.2 mm. The energy efficiency of the OM4 optical module can be approximately 77%. However, the present invention is not limited thereto.

[0090] Figure 5A is a schematic cross-sectional view of an optical module according to a fifth embodiment of the present invention, and Figure 5B is a schematic three-dimensional view of an optical lens. The optical module OM5 in Figure 5A may be substantially the same as the optical module OM4 in Figure 4A, the optical lens 200D shown in Figures 5A to 5B may be substantially the same as the optical lens 200C shown in Figures 4A to 4C, and the same reference numerals indicate the same elements. In this embodiment, the optical module OM5 includes a light source 100 and an optical lens 200D. The optical lens 200D comprises a light incident surface 210, a light emission surface 260' opposite to the light incident surface 210, and a reflective surface 270 connected to the light incident surface 210 and the light emission surface 260'.

[0091] As shown in Figures 5A to 5B, the light-emitting surface 260' comprises a first cylindrical convex surface 261 arranged continuously along a second direction D2, a row of cylindrical concave surfaces 262', and a second cylindrical convex surface 263. A row of cylindrical concave surfaces 262' comprises a first cylindrical concave surface 262a', a second cylindrical concave surface 262b', and a third cylindrical concave surface 262c', which are continuously arranged along a first direction D1. The optical axis OA may pass through the second cylindrical concave surface 262b'. The curvature of the second cylindrical concave surface 262b' is greater than the curvature of the first cylindrical concave surface 262a' and the curvature of the third cylindrical concave surface 262c'. Each of the first cylindrical convex surface 261, the second cylindrical convex surface 263, the first cylindrical concave surface 262a', the second cylindrical concave surface 262b', and the third cylindrical concave surface 262c' has a refractive force along the second direction D2 but no refractive force along the first direction D1. However, in other embodiments, the first cylindrical convex surface, the second cylindrical convex surface, the first cylindrical concave surface, the second cylindrical concave surface, and / or the third cylindrical concave surface can be adjusted so that these surfaces have a refractive force along the first direction D1.

[0092] The optical module OM5 of the fifth embodiment can produce a long, bright streak at a distance of 25m and can be used as a high beam light for a vehicle and / or motorcycle. In this embodiment, the optical lens 200D may have a size of approximately 51.2 mm and a thickness of approximately 18.1 mm. The energy efficiency of the OM5 optical module can be approximately 77%. In this embodiment, the light-emitting surface 260' includes a concave surface, for example, a first cylindrical concave surface 262a', a second cylindrical concave surface 262b', and a third cylindrical concave surface 262c'. Such a design can reduce chromatic aberration in optical lenses. However, the present invention is not limited thereto.

[0093] Numerical values ​​including the maximum and minimum values ​​within the range provided herein, as well as values ​​between them, are feasible and fall within the scope of the present invention.

[0094] The above description of the embodiments is provided to enable those skilled in the art to fabricate and use the subject matter. Various modifications to these embodiments will be readily apparent to those skilled in the art. The novel principles and subject matter invented herein can be applied to other embodiments without the use of innovative techniques. The subject matter shown and claimed in the claims is not intended to limit to the embodiments shown herein, but is given the broadest scope that corresponds to the principles and novel features invented herein. Further embodiments are intended to be within the spirit and true scope of the subject matter of the invention. Accordingly, the present invention is intended to include modified and altered forms, as well as their equivalents, that fall within the scope of the appended claims.

Claims

1. An optical lens, wherein the optical lens is An optical incident surface comprising a central optical incident surface, a first ambient optical incident surface, a second ambient optical incident surface, a third ambient optical incident surface, and a fourth ambient optical incident surface, wherein the central optical incident surface is a hyperbolic convex surface, and the first ambient optical incident surface, the second ambient optical incident surface, the third ambient optical incident surface, and the fourth ambient optical incident surface are arranged around the central optical incident surface, and each of the first ambient optical incident surface, the second ambient optical incident surface, the third ambient optical incident surface, and the fourth ambient optical incident surface protrudes from the central optical incident surface in a direction parallel to the optical axis of the optical lens, The light emission surface opposite to the light incident surface, A reflective surface connected to the light incident surface and the light emission surface Equipped with, An optical lens characterized in that the optical axis of the optical lens passes through the light incident surface and the light emission surface.

2. The optical lens according to claim 1, characterized in that the first ambient light incident surface and the third ambient light incident surface are symmetrical with respect to a plane formed by the optical axis and the first direction, and the optical axis and the first direction are orthogonal to each other.

3. The optical lens according to claim 2, characterized in that the second ambient light incident surface and the fourth ambient light incident surface are symmetrical with respect to a plane formed by the optical axis and the second direction, and the optical axis, the first direction and the second direction are orthogonal to each other.

4. The optical lens according to claim 1, characterized in that each of the first ambient light incident surface, the second ambient light incident surface, the third ambient light incident surface, and the fourth ambient light incident surface is a hyperbolic convex surface.

5. The optical lens according to claim 4, characterized in that the angle between the optical axis of the optical lens and the axis of the first ambient light incident surface, and the angle between the optical axis of the optical lens and the axis of the third ambient light incident surface, are each within the range of about 53 degrees to about 57 degrees.

6. The optical lens according to claim 4, characterized in that the angle between the optical axis of the optical lens and the axis of the second ambient light incident surface, and the angle between the optical axis of the optical lens and the axis of the fourth ambient light incident surface, are each within the range of about 53 degrees to about 57 degrees.

7. The optical lens according to claim 4, characterized in that the axis of the first ambient light incident surface, the axis of the second ambient light incident surface, the axis of the third ambient light incident surface, and the axis of the fourth ambient light incident surface each pass through the reflective surface.

8. The optical lens according to claim 1, characterized in that the distance between the vertex of the central light incident surface and the focal point of the central light incident surface is in the range of about 7 mm to about 11 mm.

9. The optical lens according to claim 1, characterized in that the first ambient light incident surface is connected to the second ambient light incident surface, the second ambient light incident surface is connected to the third ambient light incident surface, the third ambient light incident surface is connected to the fourth ambient light incident surface, and the fourth ambient light incident surface is connected to the first ambient light incident surface.

10. The aforementioned central light incident surface has a cone constant (K) in the range of approximately -2.6 to approximately -2.4 and approximately 0.15 m －１ Approximately 0.25m from －１ The optical lens according to claim 1, characterized in that it has a curvature (C) within the range of up to .

11. The first ambient light incident surface and the third ambient light incident surface each have a cone constant (K) in the range of approximately -2.7 to approximately -2.5 and approximately 0.2 m －１ From approximately 0.3m －１ The optical lens according to claim 4, characterized in that it has a curvature (C) within the range of up to .

12. The second ambient light incident surface and the fourth ambient light incident surface each have a cone constant (K) in the range of approximately -2.6 to approximately -2.4 and approximately 0.15 m －１ Approximately 0.25m from －１ The optical lens according to claim 4, characterized in that it has a curvature (C) within the range of up to .

13. The optical lens according to claim 1, characterized in that the maximum angle between the optical axis of the optical lens and the connecting line between the focal point of the central light incident surface and a point on the first ambient light incident surface, and the maximum angle between the optical axis of the optical lens and the connecting line between the focal point of the central light incident surface and a point on the third ambient light incident surface, are each within the range of about 73 degrees to about 77 degrees.

14. The optical lens according to claim 1, characterized in that the maximum angle between the optical axis of the optical lens and the connecting line between the focal point of the central light incident surface and a point on the second ambient light incident surface, and the maximum angle between the optical axis of the optical lens and the connecting line between the focal point of the central light incident surface and a point on the fourth ambient light incident surface, are each within the range of about 73 degrees to about 77 degrees.

15. The optical lens according to claim 1, wherein the light-emitting surface comprises a first cylindrical convex surface, a second cylindrical convex surface, and a third cylindrical convex surface arranged continuously along a second direction, each of the first cylindrical convex surface, the second cylindrical convex surface, and the third cylindrical convex surface each has refractive power along the second direction and no refractive power along the first direction, and the optical axis, the first direction, and the second direction are orthogonal to each other.

16. The optical lens according to claim 1, wherein the light-emitting surface comprises a first flat surface, a first cylindrical convex surface, a second cylindrical convex surface, and a second flat surface, each of the first cylindrical convex surface and the second cylindrical convex surface having refractive power along the second direction and not having refractive power along the first direction, and the optical axis, the first direction and the second direction are orthogonal to each other.

17. The optical lens according to claim 1, wherein the light-emitting surface comprises a first flat surface, a first cylindrical convex surface, a first row of curved surfaces, a second row of curved surfaces, a second cylindrical convex surface, and a second flat surface, wherein each of the first cylindrical convex surface and the second cylindrical convex surface has refractive power along the second direction and no refractive power along the first direction, each of the first row of curved surfaces and the second row of curved surfaces comprises a plurality of curved surfaces arranged along the first direction, each of the curved surfaces in the first row of curved surfaces and the second row of curved surfaces has refractive power along both the first direction and the second direction, and the optical axis, the first direction and the second direction are orthogonal to each other.

18. The optical lens according to claim 1, wherein the light-emitting surface comprises a first cylindrical convex surface arranged continuously along a second direction, a row of cylindrical convex surfaces, and a second cylindrical convex surface, the row of cylindrical convex surfaces comprising a third cylindrical convex surface, a fourth cylindrical convex surface, and a fifth cylindrical convex surface arranged continuously along the first direction, each of the first cylindrical convex surface, the second cylindrical convex surface, the third cylindrical convex surface, the fourth cylindrical convex surface, and the fifth cylindrical convex surface has refractive power along the second direction but no refractive power along the first direction, and the optical axis, the first direction, and the second direction are orthogonal to each other.

19. The optical lens according to claim 1, characterized in that the light-emitting surface comprises a concave surface.

20. The optical lens according to claim 1, having a size in the range of approximately 46 mm to approximately 52 mm.

21. The optical lens according to claim 1, having a thickness in the range of approximately 15 mm to approximately 24 mm.

22. An optical module, wherein the optical module is Light source and An optical lens disposed on the light transmission path of the light source and The optical lens is equipped with, An optical incident surface comprising a central optical incident surface, a first ambient optical incident surface, a second ambient optical incident surface, a third ambient optical incident surface, and a fourth ambient optical incident surface, wherein the central optical incident surface is a hyperbolic convex surface, and the first ambient optical incident surface, the second ambient optical incident surface, the third ambient optical incident surface, and the fourth ambient optical incident surface are arranged around the central optical incident surface, and each of the first ambient optical incident surface, the second ambient optical incident surface, the third ambient optical incident surface, and the fourth ambient optical incident surface protrudes from the central optical incident surface in a direction parallel to the optical axis of the optical lens, The light emission surface opposite to the light incident surface, A reflective surface connected to the light incident surface and the light emission surface Equipped with, An optical module characterized in that the optical axis of the optical lens passes through the light incident surface and the light emission surface.

23. The optical module according to claim 22, characterized in that the light source is disposed at the focal point of the central light incident surface.

24. The optical module according to claim 22, characterized in that the distance between the vertex of the central light incident surface and the light source in a direction parallel to the optical axis of the optical lens is within the range of about 7 mm to about 11 mm.

25. The optical module according to claim 22, characterized in that the first ambient light incident surface and the third ambient light incident surface are symmetrical with respect to a plane formed by the optical axis and the first direction, and the optical axis and the first direction are orthogonal to each other.

26. The optical module according to claim 25, characterized in that the second ambient light incident surface and the fourth ambient light incident surface are symmetrical with respect to a plane formed by the optical axis and the second direction, and the optical axis, the first direction and the second direction are orthogonal to each other.

27. The optical module according to claim 22, characterized in that each of the first ambient light incident surface, the second ambient light incident surface, the third ambient light incident surface, and the fourth ambient light incident surface is a hyperbolic convex surface.

28. The optical module according to claim 27, characterized in that the angle between the optical axis of the optical lens and the axis of the first ambient light incident surface, and the angle between the optical axis of the optical lens and the axis of the third ambient light incident surface, are each within the range of about 53 degrees to about 57 degrees.

29. The optical module according to claim 27, characterized in that the angle between the optical axis of the optical lens and the axis of the second ambient light incident surface, and the angle between the optical axis of the optical lens and the axis of the fourth ambient light incident surface, are each within the range of about 53 degrees to about 57 degrees.

30. The optical module according to claim 27, characterized in that the axis of the first ambient light incident surface, the axis of the second ambient light incident surface, the axis of the third ambient light incident surface, and the axis of the fourth ambient light incident surface each pass through the reflective surface.

31. The optical module according to claim 22, characterized in that the first ambient light incident surface is connected to the second ambient light incident surface, the second ambient light incident surface is connected to the third ambient light incident surface, the third ambient light incident surface is connected to the fourth ambient light incident surface, and the fourth ambient light incident surface is connected to the first ambient light incident surface.

32. The aforementioned central light incident surface has a cone constant (K) in the range of approximately -2.6 to approximately -2.4 and approximately 0.15 m －１ Approximately 0.25m from －１ The optical module according to claim 22, characterized in that it has a curvature (C) within the range of up to .

33. The optical module according to claim 22, characterized in that the maximum angle between the optical axis of the optical lens and the connecting line between the focal point of the central light incident surface and a point on the first ambient light incident surface, and the maximum angle between the optical axis of the optical lens and the connecting line between the focal point of the central light incident surface and a point on the third ambient light incident surface, are each within the range of about 73 degrees to about 77 degrees.

34. The optical module according to claim 22, characterized in that the maximum angle between the optical axis of the optical lens and the connecting line between the focal point of the central light incident surface and a point on the second ambient light incident surface, and the maximum angle between the optical axis of the optical lens and the connecting line between the focal point of the central light incident surface and a point on the third ambient light incident surface, are each within the range of about 73 degrees to about 77 degrees.

35. The optical module according to claim 22, characterized in that the optical lens has a size in the range of approximately 46 mm to approximately 52 mm.

36. The optical module according to claim 22, wherein the optical lens has a thickness in the range of about 15 mm to about 24 mm.

37. The optical module according to claim 22, characterized in that the light source has a size in the range of about 1.00 mm to about 1.10 mm.

38. The optical module according to claim 22, characterized in that the light source is square in shape.

Images