Optical assembly and lighting device

Abstract

The utility model discloses an optical assembly, which comprises a first optical element and a second optical element, the first optical element comprises a base and a light emitting part, the base is provided with a first surface and a second surface arranged on the opposite side of the first surface, and the first surface is used for receiving light rays processed by the second optical element; the light emitting part is arranged on the second surface, and the light emitting part is a first microstructure with a plurality of bulges; the bulge has an extension direction; the second optical piece is used for receiving light rays emitted by the light source, and the second optical piece is arranged below the first surface in the direction parallel to the extending direction of the light emitting part; light emitted by the light source enters the first optical element through the first surface after being processed by the second optical element. According to the optical assembly, the first optical piece with the microstructure is adopted and matched with the double-track type second optical piece to conduct light mixing treatment, light distribution can be conducted on multiple light sources, and the small-angle light distribution requirement is met. The utility model further provides a lighting device comprising the optical assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of mixed light illumination, and in particular to an optical component and an illumination device. Background Art

[0002] As people's requirements for lighting environment become higher and higher, in actual lighting applications, not only brightness adjustment function is needed, but also color temperature adjustment and color adjustment function are needed. This requires that different types of light-emitting chips are used in LED lamps to emit light of different wavelengths and colors, and the light sources equipped with these light-emitting chips are used together to achieve dimming and color adjustment functions.

[0003] In order to make the light emitted by multiple light sources emit evenly, a small-angle lens (TIR lens) can be used to cover the light source to mix the light from multiple light sources together; however, since most of the current TIR lenses are single lenses, it is difficult to achieve a good light mixing effect; there are also some design schemes that mix light by adding sun patterns or microstructures, but such a mixing structure will result in low light output efficiency, and there is also the defect that small-angle light distribution is difficult to achieve.

[0004] In addition, in practical applications, since the arrangement of the light-emitting chips of different light sources and the size of the light-emitting surface are often different, the versatility of the mixed light lens is poor, and a conventional set of lenses cannot be used for multiple mixed light sources.

[0005] The prior art discloses an optical lens assembly for uniform color mixing, comprising an LED light source, a collimating lens and a fly-eye lens arranged in sequence, wherein the LED light source is arranged on the light-incoming side of the collimating lens, and the fly-eye lens is arranged on the light-emitting side of the collimating lens. The multi-color light emitted by the LED light source is collimated and emitted to the fly-eye lens after being light-distributed by the collimating lens; the fly-eye lens comprises a first surface facing the collimating lens and a second surface facing away from the collimating lens, and microstructure unit arrays are arranged on the two surfaces in mirror-symmetric relation to each other, and the microstructures on each surface are inscribed in the same plane. The fly-eye arrangement of the optical lens assembly is irregular, and the light mixing effect cannot be well reproduced. Summary of the invention

[0006] In order to solve the above problems, the utility model provides an optical component, which uses a first optical component with a microstructure and cooperates with a second optical component of a double-track type to perform light mixing processing, can distribute light for multiple light sources, and meet the light distribution requirements of small angles. The utility model also provides a lighting device including the optical component.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] An optical assembly comprising a first optical component and a second optical component,

[0009] The first optical element comprises a base and a light emitting portion, the base is provided with a first surface and a second surface arranged on the opposite side of the first surface, the first surface is used to receive the light processed by the second optical element;

[0010] The light emitting portion is disposed on the second surface, and the light emitting portion is a first microstructure having a plurality of protrusions; the protrusions have an extension direction;

[0011] The second optical component is used to receive light emitted by the light source, and the second optical component is arranged below the first surface in a direction parallel to the extension direction of the protrusion; wherein the light emitted by the light source is processed by the second optical component and then enters the first optical component through the first surface.

[0012] In one preferred embodiment, the light emitting portion is integrally formed on the base, and the first microstructure is disposed on the second surface by injection molding or embossing molding.

[0013] In one preferred embodiment, the light emitting portion is a first microstructure having a plurality of prismatic protrusions, and the light emitting portion has a first light emitting surface and a second light emitting surface, and the first light emitting surface and the second light emitting surface form a first angle α and a second angle β with the second surface respectively.

[0014] In one preferred embodiment, the first angle α is equal to the second angle β, and the first angle α has the following relationship:

[0015]

[0016] Wherein, n is the refractive index of the first optical element.

[0017] In one of the preferred embodiments, the second optical element is a collimating lens composed of a plurality of TIR lens units, the second optical element is arranged in a double-track shape below the first surface, and the second optical element has a first exit surface; along the extension direction of the protrusion, the base has a central axis; on any cross-section of the optical component perpendicular to the central axis, the first surface has a first center line perpendicular to the first surface, and the second optical elements arranged on both sides of the first center line respectively have a second center line and a third center line perpendicular to the first exit surface, and the second center line and the third center line respectively form a third angle γ and a fourth angle θ with the first center line.

[0018] In one preferred embodiment, the third angle γ is equal to the fourth angle θ, and the third angle γ has the following relationship:

[0019]

[0020] Wherein, n is the refractive index of the first optical element.

[0021] In one preferred embodiment, the light emitted by the light source:

[0022] After being collimated by the second optical element on both sides of the first center line, the first light beam and the second light beam are emitted from the first exit surface respectively and converged on the first surface to form light spots of the same size;

[0023] After being refracted by the first surface, the first light beam enters the first optical element, wherein the first light beam is parallel to the first light emitting surface, and the second light beam is parallel to the second light emitting surface;

[0024] Finally, after being refracted by the light emitting portion, the first light beam and the second light beam are both emitted to the outside in an alternating manner as light beams perpendicular to the first surface and the second surface.

[0025] In one preferred embodiment, the second optical element is a polarized lens arranged in a double-track shape below the first surface, the second optical element has a third surface, the third surface is parallel to the first surface, and a second microstructure is arranged on the third surface, and the extension direction of the second microstructure is parallel to the extension direction of the protrusion.

[0026] In one preferred embodiment, the second microstructure is provided with a second emission surface, and the second emission surface forms a fifth angle ε with the third surface, and the fifth angle ε has the following relationship:

[0027]

[0028] Wherein, n is the refractive index of the first optical element, and np is the refractive index of the second optical element.

[0029] In one preferred embodiment, along the extension direction of the protrusion, the base has a central axis; on any cross section of the optical component perpendicular to the central axis, the second microstructure has a right-angled triangle structure;

[0030] The first surface has a first midline perpendicular to the first surface, and the first midline intersects the first surface at a point O1;

[0031] The second optical components arranged on both sides of the first center line respectively have a second center line and a third center line perpendicular to the third surface, the second center line and the third center line intersect with the second exit surface at points M and N respectively, and line segment MO1 and line segment NO1 form a sixth angle μ and a seventh angle λ with the first center line respectively, and the sixth angle μ is equal to the seventh angle λ.

[0032] In one preferred embodiment, the light emitted by the light source:

[0033] After being refracted by the second optical element on both sides of the first center line, the first light beam and the second light beam are emitted from the second exit surface respectively and converged on the first surface to form light spots of the same size, the center of which coincides with the first center line;

[0034] After being refracted by the first surface, the first light beam enters the first optical element, wherein the first light beam is parallel to the first light emitting surface, and the second light beam is parallel to the second light emitting surface;

[0035] Finally, after being refracted by the light emitting portion, the first light beam and the second light beam are both emitted to the outside in an alternating manner as light beams perpendicular to the first surface and the second surface.

[0036] The utility model also provides a lighting device, comprising a light source and the above optical assembly, wherein the second optical component is arranged on the light source.

[0037] Based on the above technical solution, the technical effects achieved by the utility model are:

[0038] 1. The optical component provided by the utility model adopts a first optical component with a first microstructure and cooperates with a double-track second optical component to jointly perform refracting light mixing processing on light, which can effectively improve the light mixing effect.

[0039] 2. The lighting device of the utility model adopts optical components to distribute and mix light for multiple light sources within a certain diameter, and has good versatility; and can meet the light distribution requirements of a small angle of 24°. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 1 is a side view of the optical component of Example 1.

[0041] Figure 2 This is a schematic structural diagram of the first optical component of Example 1.

[0042] Figure 3 3. This is a side view of the first optical element of Example 1.

[0043] Figure 4 for Figure 3 A magnified view of the area in the middle.

[0044] Figure 5 This is a schematic structural diagram of the second optical component of Example 1.

[0045] Figure 6 for Figure 1 Design schematic diagram.

[0046] Figure 7This is a light path simulation diagram of the optical component of Example 1.

[0047] Figure 8 This is a schematic diagram of the structure of the optical component of Example 2.

[0048] Fig. 9 Schematic diagram of the structure of the second optical component of Example 2.

[0049] Fig.10 This is a side view of the second optical element of Example 2.

[0050] Fig.11 1 is a side view of the optical component of Example 2.

[0051] Fig.12 This is a light path simulation diagram of the optical component of Example 2. DETAILED DESCRIPTION

[0052] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively in conjunction with the accompanying drawings and specific embodiments. The accompanying drawings provide preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly and comprehensively understood.

[0053] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0054] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0055] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0056] Example 1

[0057] Combined with reference Figure 1-Figure 5 An optical component 100 is used for mixing light emitted by a light source. The optical component 100 includes a first optical component 1 and a second optical component 2; wherein the first optical component 1 includes a base 11 and a light emitting portion 12, and the light emitting portion 12 is arranged above the base 11. The base 11 is provided with a first surface 111 and a second surface 112, wherein the first surface 111 is used to receive light processed by the second optical component 2, and the second surface 112 is located on the opposite side of the first surface 111, that is, the second surface 112 is arranged opposite to the first surface 111, and the light enters the light emitting portion 12 from the second surface 112 after passing through the base 11. The first surface 111 of this embodiment is a plane.

[0058] The light-emitting portion 12 is bonded to the second surface 112, and the light-emitting portion 12 is a first microstructure 120 having a protrusion 121. The protrusion 121 may be a prismatic protrusion. In this embodiment, the protrusion 121 is a prismatic protrusion, and its cross section is triangular. That is, the light-emitting portion 12 is a first microstructure 120 having a plurality of prismatic protrusions. On this basis, it can be considered that the first optical element 1 has a prismatic light mixing comb structure, and in the subsequent description, the protrusion 121 is a prismatic protrusion 121.

[0059] The material of the first optical element 1 is a transparent optical material such as polymethyl methacrylate (PMMA), polycarbonate (PC) or glass. In other embodiments, the first optical element 1 may also be made of other optical materials that are transmissive or semi-transmissive and have refractive properties. The first optical element 1 can be prepared by integral injection molding, engraving or embossing. The light emitting portion 12 of this embodiment is integrally formed on the base 11. Among them, the first microstructure 120 of the light emitting portion 12 can be arranged on the second surface 112 by injection molding or embossing.

[0060] like Figure 2 As shown, the first optical element 1 of this embodiment is a rectangular plate-like structure as a whole, the protrusion 121 of the light-emitting portion 12 extends along the extension direction L1, the extension direction L1 of the protrusion 121 is parallel to the long side 1101 of the base 1, the protrusions 121 are connected together in a single array and together with the wide side 1102 of the base 1, constitute the shorter side of the first optical element 1. In this embodiment, along the extension direction L1 of the protrusion 121, the base 11 has a central axis C. The central axis C is also parallel to the long side 1101. The width of the first optical element 1 is a, and the thickness is b.

[0061] In other embodiments, the light source may be cut into a circular, elliptical, triangular or other polygonal structure according to the size of the light source or the shape of the lamp.

[0062] The second optical element 2 is used to receive light emitted by a light source (not shown in the figure), and is installed below the first optical element 1, with a gap between the second optical element 2 and the first optical element 1. It should be noted that the second optical element 2 of this embodiment is arranged below the first surface 111 in a direction parallel to the extension direction L1 of the protrusion 121.

[0063] Since the light emitting portion 12 of this embodiment is a first microstructure 120 having a plurality of prismatic protrusions 121, Figure 3 In the side view or cross section, the light emitting portion 12 can be considered to be composed of a plurality of triangular protrusions. The base of each prismatic protrusion 121 is c and the height is d.

[0064] like Figure 4 As shown, the light emitting portion 12 has a first light emitting surface 1211 and a second light emitting surface 1212, and the first light emitting surface 1211 and the second light emitting surface 1212 are respectively arranged on the side wall surface of each prismatic protrusion 121. The first light emitting surface 1211 is inclined to the right, and forms a first angle α with the second surface 112, and the first light emitting surfaces 1211 of the plurality of protrusions 121 form a first light emitting array; the second light emitting surface 1212 is inclined to the left, and forms a second angle β with the second surface 112, and the second light emitting surfaces 1212 of the plurality of protrusions 121 form a second light emitting array. The second light emitting array cooperates with the first light emitting array to mix the light, so that the light is staggered to achieve a better light mixing effect.

[0065] In this embodiment, the first angle α is equal to the second angle β, that is, α=β. By optimizing the first microstructure 120 of the first optical element 1, the first angle α has the following relationship:

[0066]

[0067] Wherein, n is the refractive index of the first optical element 1 .

[0068] It should be noted that, if the first microstructure 120 and the first optical element are manufactured by nanoimprinting technology, the thickness b of the first optical element 1 is in the range of 0.1-0.3 mm; the bottom edge c of the prismatic protrusion 121 is in the range of 30-300 μm.

[0069] If the injection molding process or the extrusion process is adopted, the thickness b of the first optical element 1 is in the range of 1-3 mm; the bottom edge c of the prismatic protrusion 121 is in the range of 0.2-0.5 mm.

[0070] exist Figure 1 and Figure 2 Based on reference Figure 5The second optical element 2 of this embodiment is a collimating lens composed of a plurality of TIR lens units 201, and the plurality of TIR lens units 201 are arranged in an array in parallel to the extension direction L1 to form a single-track collimating lens; furthermore, two second optical elements 2 are arranged in a double-track shape below the first surface 111 of the first optical element 1. The second optical element 2 has a first exit surface 21, and the light processed by the second optical element 2 enters the first surface 111 of the first optical element 1 from the first exit surface 21. The function of the second optical element 2 is to converge the light beams of the mixed light source into small-angle exit light, and the mixed light source can be a light source of different color temperatures or different colors, and the mixed light source is installed below the second optical element 2 which is a collimating lens.

[0071] refer to Figure 6 On any side view or cross section of the optical component 100 perpendicular to the central axis C, the first surface 111 has a first center line Z1, which is perpendicular to the first surface 111 and intersects at the first center point O1 of the first surface 111. The two second optical components 2 are symmetrically arranged on both sides of the first center line Z1. The second optical component 2 on the left side has a second center line Z2, which is perpendicular to the first exit surface 21 on the left side and intersects at the second center point O2; the second optical component 2 on the right side has a third center line Z3, which is perpendicular to the first exit surface 21 on the right side and intersects at the third center point O3.

[0072] Among them, the second center line Z2 and the first center line Z1 form a third angle γ, that is, the second optical element 2 located on the left side is tilted to the right at the magnitude of the third angle γ; the third center line Z3 and the first center line Z1 form a fourth angle θ, that is, the second optical element 2 located on the right side is tilted to the right at the magnitude of the fourth angle θ.

[0073] The distance e1 between the second midpoint O2 and the third midpoint O3 needs to be smaller than the width a of the first optical element 1 , that is, e1<a.

[0074] In order to ensure that the second optical elements 2 on the left and right sides have the same spot diameter on the first surface 111 of the first optical element 1, the following conditions need to be met:

[0075] (1) The third angle γ is equal to the fourth angle θ, that is, γ = θ;

[0076] (2) The distance e2 between the second midpoint O2 and the first midpoint O1 is equal to the distance e3 between the third midpoint O3 and the first midpoint O1, that is, e2=e3.

[0077] It can be understood that, in this embodiment, the third angle γ is equal to the fourth angle θ, that is, the second optical elements on the left and right sides are tilted at the same angle (the third angle or the fourth angle). By optimizing the tilt angle of the second optical element 2, the third angle γ has the following relationship:

[0078]

[0079] Wherein, n is the refractive index of the first optical element 1 .

[0080] In addition, since there is a gap between the second optical element 2 and the first optical element 1, they are not closely connected. The distance between the second midpoint O2 (or the third midpoint O3) and the first surface 111 is h1. The value of h1 is determined according to the overall design requirements of the optical component 100.

[0081] Figure 7 is a light path simulation diagram of the optical component of this embodiment. Figure 6 Based on reference Figure 7 , the light emitted from the light source will be emitted after the following light control processing:

[0082] First, after being collimated by the second optical element 2 on both sides of the first center line Z1, the first light beam G1 and the second light beam G2 are emitted from the first exit surface 21 respectively, and converge on the first surface 111 of the first optical element 1 to form light spots of the same size; wherein the first light beam G1 is parallel to the second center line Z2, and the second light beam G2 is parallel to the third center line Z3; the first light beam G1 and the second light beam G2 can be collimated light beams of different colors or different color temperatures.

[0083] Then, after being refracted by the first surface 111, it enters the first optical element 1; specifically, the first light beam G1 and the second light beam G2 are refracted at the interface between the second surface 112 and the light emitting portion; at this time, the first light beam G1 is parallel to the first light emitting surface 1211, and the second light beam G2 is parallel to the second light emitting surface 1212.

[0084] Finally, after being refracted by the light emitting portion 12, the first light beam G1 and the second light beam G2 are emitted to the outside in an alternating manner as light beams perpendicular to the first surface 111 and the second surface 112, that is, the emission directions of the first light beam G1 and the second light beam G2 are both vertical and the same, thereby achieving the purpose of light mixing.

[0085] The optical component provided in this embodiment adopts a first optical component with a first microstructure and cooperates with a double-track second optical component to jointly perform refracting light mixing processing on the light, which can effectively improve the light mixing effect without increasing the sun pattern.

[0086] Example 2

[0087] exist Figure 2-Figure 4 Based on the reference Figure 8-Figure 11This embodiment provides another structure of an optical component 100. In the optical component 100 of this embodiment, the first optical element 1 is the same as the first optical element 1 of embodiment 1, and also has a prism-shaped light mixing comb structure. For details, please refer to the description of embodiment 1, which will not be repeated here.

[0088] The second optical element 2 is also disposed in a double-track manner below the first surface 111 of the first optical element 1. However, unlike the first embodiment, the second optical element 2 of this embodiment is a polarized lens, and the second optical element 2 has a third surface 23, which is parallel to the first surface 111. A second microstructure 22 is disposed on the third surface 23, and the extension direction L2 of the second microstructure 22 is parallel to the extension direction L1 of the protrusion 121, that is, the second optical element 2 of this embodiment is horizontally disposed below the first optical element in a manner that the third plane 23 is parallel to the first surface 111.

[0089] The second microstructure 22 is provided with a second emission surface 221, and a fifth angle ε is formed between the second emission surface 221 and the third surface 23. The fifth angle ε has the following relationship:

[0090]

[0091] Wherein, n is the refractive index of the first optical element 1 , and np is the refractive index of the second optical element 2 .

[0092] Combined with reference Fig.10 and Fig.11 , on the side view or cross section of the optical component perpendicular to the central axis C, the cross section of the second microstructure 22 has a right triangle structure, that is, the second microstructure 22 is a microstructure that deflects in one direction. In the second optical element 2 of this embodiment, the lower part of the second microstructure 22 is a collimating lens, which is used to convert light into collimated parallel light.

[0093] The first surface 111 has a first center line Z1 , which is perpendicular to the first surface 111 and intersects at a first center point O1 of the first surface 111 .

[0094] The two second optical elements 2 are symmetrically arranged on both sides of the first center line Z1. The second optical element 2 on the left side has a second center line Z2, which is perpendicular to the third surface 23 and intersects with the second exit surface 221 at a midpoint M; the second optical element 2 on the right side has a third center line Z3, which is perpendicular to the third surface 23 and intersects with the second exit surface 221 at a midpoint N.

[0095] The distance between the third surface and the first surface 111 is h2. The value of H2 is determined according to the overall design requirements of the optical component 100.

[0096] The line segment MO1 and the line segment NO1 form a sixth angle μ and a seventh angle λ with the first midline Z1 respectively.

[0097] In order to ensure that the spot size formed by the second optical elements on the left and right sides on the first surface of the first optical element is consistent, the following conditions need to be met:

[0098] (1) The sixth angle μ is equal to the seventh angle λ, that is, μ=λ; the values ​​of the sixth angle μ and the seventh angle λ may also be equal to the third angle γ (refer to Example 1).

[0099] (2) The distance MO1 between the midpoint M and the first midpoint O1 is equal to the distance NO1 between the midpoint N and the first midpoint O1, that is, MO1=NO1.

[0100] The distance MN between the midpoint M and the midpoint N needs to be smaller than the width a of the first optical element 1 , that is, MN<a.

[0101] Fig.12 is a light path simulation diagram of the optical component of this embodiment. Fig.11 Based on reference Fig.12 , the light emitted from the light source will be emitted after the following light control processing:

[0102] First, after being collimated and refracted by the second optical element 2 on both sides of the first center line Z1, the first light beam G1 and the second light beam G2 are emitted from the second exit surface 221 respectively and converged on the first surface 111 to form light spots of the same size, and the center of the light spot coincides with the first center line Z1;

[0103] Next, after being refracted by the first surface 111, the light beam enters the first optical element 1; specifically, the first light beam G1 and the second light beam G2 are refracted at the interface between the second surface 112 and the light emitting portion; at this time, the first light beam G1 is parallel to the first light emitting surface 1211, and the second light beam G2 is parallel to the second light emitting surface 1212;

[0104] Finally, after being refracted by the light emitting portion 12, the first light beam G1 and the second light beam G2 are emitted to the outside in an alternating manner as light beams perpendicular to the first surface 111 and the second surface 112, that is, the emission directions of the first light beam G1 and the second light beam G2 are both vertical and the same, thereby achieving the purpose of light mixing.

[0105] The optical component provided in this embodiment adopts a first optical component with a first microstructure, and cooperates with a double-track second optical component with a second microstructure to jointly perform refracting mixing processing on the light. The light mixing effect can be effectively improved without increasing the sun pattern, and a small-angle mixed light beam can be obtained.

[0106] Example 3

[0107] This embodiment provides a lighting device, including a light source and an optical assembly of embodiment 1 or embodiment 2, wherein the second optical component 2 is disposed on the light source. The optical assembly can distribute light for multiple SMD light sources within a certain diameter, and can meet the light distribution requirements of a small angle of 24°; in addition, the optical assembly can also mix light for SMD light sources with dual color temperatures.

[0108] The lighting device of this embodiment uses optical components with good versatility, which can save costs compared with conventional light distribution solutions.

[0109] The above contents are merely examples and illustrations of the structure of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, and these obvious replacement forms all belong to the protection scope of the utility model.

Claims

1. An optical component, characterized in that comprising a first optical element and a second optical element, The first optical element comprises a base and a light emitting portion, the base is provided with a first surface and a second surface arranged on the opposite side of the first surface, the first surface is used to receive the light processed by the second optical element; The light emitting portion is disposed on the second surface, and the light emitting portion is a first microstructure having a plurality of protrusions; The protrusion has an extension direction; The second optical element is used to receive light emitted by the light source, and the second optical element is arranged below the first surface in a direction parallel to the extension direction of the protrusion; The light emitted by the light source is processed by the second optical component and then enters the first optical component through the first surface.

2. The optical component according to claim 1, characterized in that The light emitting portion is integrally formed on the base, and the first microstructure is arranged on the second surface by injection molding or embossing molding.

3. The optical component according to claim 1, characterized in that The light emitting portion is a first microstructure having a plurality of prismatic protrusions. The light emitting portion has a first light emitting surface and a second light emitting surface. The first light emitting surface and the second light emitting surface form a first angle α and a second angle β with the second surface, respectively.

4. The optical component according to claim 3, characterized in that The first angle α is equal to the second angle β, and the first angle α has the following relationship: Wherein, n is the refractive index of the first optical element.

5. The optical component according to claim 4, characterized in that The second optical element is a collimating lens composed of a plurality of TIR lens units, the second optical element is disposed in a double-track shape below the first surface, and the second optical element has a first exit surface; Along the extension direction of the protrusion, the base has a central axis; On any cross section of the optical component perpendicular to the central axis, the first surface has a first center line perpendicular to the first surface, and the second optical components arranged on both sides of the first center line respectively have a second center line and a third center line perpendicular to the first exit surface, and the second center line and the third center line respectively form a third angle γ and a fourth angle θ with the first center line.

6. The optical component according to claim 5, characterized in that The third angle γ is equal to the fourth angle θ, and the third angle γ has the following relationship: Wherein, n is the refractive index of the first optical element.

7. The optical component according to claim 6, characterized in that Light emitted by the light source: After being collimated by the second optical element on both sides of the first center line, the first light beam and the second light beam are emitted from the first exit surface respectively and converged on the first surface to form light spots of the same size; After being refracted by the first surface, the first light beam enters the first optical element, wherein the first light beam is parallel to the first light emitting surface, and the second light beam is parallel to the second light emitting surface; Finally, after being refracted by the light emitting portion, the first light beam and the second light beam are both emitted to the outside in an alternating manner as light beams perpendicular to the first surface and the second surface.

8. The optical component according to claim 4, characterized in that The second optical element is a polarized lens arranged in a double-track shape below the first surface. The second optical element has a third surface, which is parallel to the first surface and has a second microstructure arranged on the third surface. The extension direction of the second microstructure is parallel to the extension direction of the protrusion.

9. The optical component according to claim 8, characterized in that The second microstructure is provided with a second emission surface, and the second emission surface forms a fifth angle ε with the third surface, and the fifth angle ε has the following relationship: Wherein, n is the refractive index of the first optical element, and np is the refractive index of the second optical element.

10. The optical component according to claim 9, characterized in that Along the extension direction of the protrusion, the base has a central axis; on any cross section of the optical component perpendicular to the central axis, the second microstructure has a right-angled triangle structure; the first surface has a first midline perpendicular to the first surface, and the first midline intersects the first surface at point O1; The second optical components arranged on both sides of the first center line respectively have a second center line and a third center line perpendicular to the third surface, the second center line and the third center line respectively intersect with the second exit surface at point M and point N, line segment MO1 and line segment NO1 respectively form a sixth angle μ and a seventh angle λ with the first center line, and the sixth angle μ is equal to the seventh angle λ.

11. The optical component according to claim 10, characterized in that Light emitted by the light source: After being refracted by the second optical element on both sides of the first center line, the first light beam and the second light beam are emitted from the second exit surface respectively and converged on the first surface to form light spots of the same size, the center of which coincides with the first center line; After being refracted by the first surface, the first light beam enters the first optical element, wherein the first light beam is parallel to the first light emitting surface, and the second light beam is parallel to the second light emitting surface; Finally, after being refracted by the light emitting portion, the first light beam and the second light beam are both emitted to the outside in an alternating manner as light beams perpendicular to the first surface and the second surface.

12. A lighting device, characterized in that: It comprises a light source and the optical assembly according to any one of claims 1 to 11, wherein the second optical component is arranged on the light source.

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