Array type optical system

Abstract

The utility model provides an array type optical system. The array type optical system comprises a plurality of light sources arranged in an array; the lens is provided with a plurality of sub-lenses which are arranged in an array mode, each sub-lens corresponds to one light source, and the sub-lenses are configured to carry out imaging on light emitted by the light sources; and the shading parts are arranged between every two adjacent sub-lenses, and the shading parts are configured to block light emitted from the sub-lenses from entering the adjacent sub-lenses. According to the array type optical system, light emitted by the sub-lenses can be prevented from entering the adjacent sub-lenses, so that light channeling between the two adjacent sub-lenses is prevented, and the overall light emitting effect is improved.

Description

Technical Field

[0001] The utility model relates to the field of optics, in particular to an array optical system. Background Art

[0002] Currently, matrix light sources are mainly used in the high beam function of automobiles. The high beam is divided into several lighting areas, and the light in each area is controlled by a separate LED. During driving, auxiliary cameras, radars and other equipment are used to detect the driving conditions ahead, turn off the corresponding LEDs, and control the high beam in that area to prevent glare, which not only improves driving safety, but also improves driving comfort.

[0003] The Chinese patent application publication number is CN112146049A, and its name is a matrix type vehicle light optical device, such as Figure 1 As shown, its main optical system consists of an optical area of ​​a high beam lamp composed of 42 LEDs 100, a light guide column 200 and an imaging lens. The 42 LEDs are individually controlled for light emission. The optical arrangement of the 42 LEDs and the light guide column generates 42 rectangular light spots in the near field. The imaging lens images the 42 rectangular light spots generated in the near field to the distance, achieving the projection angle of the high beam lamp. The light source of the current matrix optical system uses monochromatic light.

[0004] Therefore, it is necessary to provide a new technical solution. Utility Model Content

[0005] In order to solve the technical problems existing in the prior art, the utility model discloses an array optical system, in which each light source is independently imaged through a sub-lens, and the light emitted by two adjacent light sources through the sub-lenses will not enter the adjacent sub-lenses, which has the effects of light isolation, light channeling prevention and anti-interference, and improves the overall effect of light emission. The specific technical solution is as follows:

[0006] The utility model provides an array optical system, which comprises:

[0007] A plurality of light sources arranged in an array;

[0008] A lens having a plurality of sub-lenses arranged in an array, each sub-lens corresponding to a light source, and the sub-lens is configured to image the light emitted by the light source;

[0009] The shading component is disposed between two adjacent sub-lenses, and the shading component is configured to block light emitted from a sub-lens from entering an adjacent sub-lens.

[0010] Furthermore, a plurality of light sources are arranged in a matrix.

[0011] Several sub-lenses are arranged in a matrix.

[0012] Furthermore, the sub-lens includes a cap body and a brim portion, the brim portion is formed around one end surface of the cap body, and the brim portions of two adjacent sub-lenses are connected to each other, the two adjacent cap bodies are spaced apart from each other, and the shading component is inserted between the two adjacent cap bodies.

[0013] Furthermore, the cap body and the brim of the sub-lens are integrally formed by injection molding, and the brims of two adjacent sub-lenses are integrally formed by injection molding to be connected to each other; and,

[0014] The brim is formed at the end of the cap body away from the light emitting surface, and adjacent cap bodies are spaced apart from each other at the light emitting end, thereby avoiding mutual interference of light emitted at the light emitting surface.

[0015] Furthermore, the light source is an RGB light source, and along the axial direction of the cap body, an accommodating cavity is formed by being recessed inward from one end of the cap body having the brim portion, the brim portion is connected to the PCBA board, and a plurality of RGB light sources are mounted on the PCBA board. The RGB light source is accommodated in the accommodating cavity, and the light emitted by the RGB light source is mixed once through the air in the accommodating cavity and mixed twice in the cap body before being emitted from the exit surface of the sub-lens.

[0016] Furthermore, the thickness of the brim portion is 5-20 mm.

[0017] Furthermore, the lens is a transparent lens, a semi-transparent lens, a matte lens or a partially striated lens.

[0018] Furthermore, the shading component is a shading hood having a plurality of shading channels, the plurality of shading channels being distributed in an array, the shading channels having openings connected at both ends and inner walls located between the openings, each cap body being accommodated in a shading channel, and along the axial direction of the cap body, one of the openings is in contact with the brim, and the other opening extends beyond the cap body.

[0019] Furthermore, the sunshade is an integrally formed structure.

[0020] Furthermore, the shape of the cap body is cylindrical, circular, rhombus or hexagonal, and the shape of the light-shielding channel matches the shape of the cap body.

[0021] The shape of the cross section of the accommodating cavity is the same as the shape of the cross section of the cap body.

[0022] The utility model has the following beneficial effects:

[0023] (1) The array optical system of the utility model is provided with a plurality of light sources and a plurality of sub-lenses, each sub-lens corresponding to a light source, and a light shielding component is provided between two adjacent sub-lenses to prevent the light emitted by the sub-lenses from entering the adjacent sub-lenses, thereby preventing light from crossing between two adjacent sub-lenses and improving the overall lighting effect.

[0024] (2) The light source of the array optical system of the utility model can adopt RGB light source, so as to achieve richer animation color effects.

[0025] (3) The array optical system of the utility model adds a light mixing structure, and adopts two light mixing forms: air light mixing and lens light mixing. The brim lens is directly installed on the PCBA. The light source first passes through a certain distance of air for the first light mixing, and then passes through the brim lens for the second light mixing, and finally forms a light pattern with good light mixing. The first light mixing area utilizes the light source's own height and light-emitting angle to greatly reduce the light crosstalk between adjacent pixels. The second light mixing area utilizes the opacity of the light shield to completely block the light propagation between adjacent pixels. The final light pattern pixels are clear, the colors are correct, and there are no obvious defects. In addition, the optical system as a whole greatly reduces the light mixing distance of the light source, and the overall size is small, saving space.

[0026] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 It is a structural schematic diagram of a matrix light source in the prior art;

[0029] Figure 2 It is a structural schematic diagram of the array optical system of the utility model;

[0030] FIG3( a ) is a schematic diagram of the three-dimensional structure of the sunshade of the present invention;

[0031] FIG3( b ) is a partially enlarged schematic diagram of the structure of FIG3( a );

[0032] FIG4( a ) is a schematic diagram of the three-dimensional structure of the lens of the present invention;

[0033] FIG4( b ) is a partially enlarged schematic diagram of the structure of FIG4( a );

[0034] Figure 5 It is a schematic diagram of the cross-sectional structure of the matching light shield and lens of the utility model;

[0035] Figure 6 It is a schematic diagram of the top view of the structure of the matching sunshade and lens of the utility model;

[0036] FIG. 7( a ) is a schematic diagram of the bottom view structure of the light shield and lens of the utility model;

[0037] FIG. 7( b ) is a schematic diagram of a partially enlarged structure of FIG. 7( a ).

[0038] Among them, 1-light source, 2-sub-lens, 21-hat body, 22-hat brim, 23-accommodating cavity, 3-light shield, 31-light shielding channel, 311-inner wall, 4-PCBA board. DETAILED DESCRIPTION

[0039] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0040] In the description of the present invention, it should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 invention. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0041] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal connection between two elements or interaction between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] See also Figure 2 To Figure 7, Figure 23(a) is a schematic diagram of the structure of the array optical system of the utility model; FIG. 3(a) is a schematic diagram of the three-dimensional structure of the light shield of the utility model; FIG. 3(b) is a schematic diagram of the partially enlarged structure of FIG. 3(a); FIG. 4(a) is a schematic diagram of the three-dimensional structure of the lens of the utility model; FIG. 4(b) is a schematic diagram of the partially enlarged structure of FIG. 4(a); Figure 5 It is a schematic diagram of the cross-sectional structure of the matching light shield and lens of the utility model; Figure 6 FIG. 7( a ) is a schematic diagram of the top view of the structure of the shading hood and the lens of the utility model; FIG. 7( a ) is a schematic diagram of the bottom view of the structure of the shading hood and the lens of the utility model; and FIG. 7( b ) is a schematic diagram of the partially enlarged structure of FIG. 7( a ).

[0043] like Figure 2 As shown, the utility model provides an array optical system, which includes a plurality of light sources 1, lenses and shading components 3 arranged in an array.

[0044] Several light sources 1 are arranged in a matrix on a PCBA board 4. In one embodiment, the PCBA board is planar, and the several light sources are located on the same plane. In another embodiment, the PCBA is formed by splicing one or more pieces. Of course, in other embodiments, the PCBA may also be a curved surface, or a folded surface composed of multiple PCBAs.

[0045] like Figure 2 to Figure 4(b) As shown, the lens is a hat-brim lens, which has a plurality of array-arranged sub-lenses 2, and the plurality of sub-lenses 2 are arranged in a matrix, each sub-lens 2 corresponds to a light source 1, and the sub-lens 2 is configured to image the light emitted by the light source 1. The lens includes but is not limited to a transparent lens, a semi-transparent lens, a matte lens or a partial dermatoglyphic lens.

[0046] In a preferred embodiment, the sub-lens 2 includes a cap body 21 and a brim 22. The brim 22 is formed around one end face of the cap body 21, and the brims 22 of two adjacent sub-lenses are connected to each other, and the two adjacent cap body 21 are spaced apart from each other, so that the brim lens forms an integrated structure, and the shading component 3 is inserted between the two adjacent cap body 21. Furthermore, the brim 22 is formed by radially extending outward along one end face of the cap body 21. In the utility model, the multiple cap body parts are spaced apart from each other in the area outside the brim for inserting the shading component. The multiple cap body parts are spaced apart from each other at one end where light is emitted, so as to avoid mutual interference of light emitted at the light emitting surface. In this embodiment, the cap body 21 is cylindrical. In other embodiments, for different light mixing distances, the shape of the cap body includes but is not limited to cylindrical, circular, rhombus or hexagonal, etc.

[0047] Furthermore, the cap body 21 and the brim 22 of the sub-lens 2 are integrally formed by injection molding, and the brim 22 of two adjacent sub-lenses are integrally formed by injection molding to be connected to each other; the brim 22 is formed at the end of the cap body 21 away from the light emitting surface, and the adjacent cap body 21 are spaced apart from each other at the light emitting end, so as to avoid mutual interference of light emitting at the light emitting surface. Moreover, the one-piece lens of the utility model is conducive to reducing the number and cost of parts, reducing assembly processes and working hours, and improving product consistency.

[0048] Furthermore, the thickness of the brim 22 is generally 5-20 mm, preferably 6-15 mm, and more preferably 7-10 mm. Thus, the lens has sufficient strength and can allow the shading cover to fully extend in the direction of the light-emitting element, thereby fully ensuring the effects of light isolation, light channeling prevention and anti-interference.

[0049] Furthermore, the light source is an RGB light source. Along the axial direction of the cap body 21, an end of the cap body 21 having a brim portion 22 is recessed inward to form a receiving cavity 23, the brim portion 22 is connected to the PCBA board 4, a plurality of RGB light sources 1 are mounted on the PCBA board 4, the RGB light source 1 is received in the receiving cavity 23, and the light emitted by each RGB light source 1 is mixed once through the air in the corresponding receiving cavity 23 and mixed twice in the cap body 21 before being emitted from the exit surface of the sub-lens. In order to further prevent the light emitted by the RGB light source from obliquely incident from the side of the light source into the cap body of the adjacent brim lens, thereby causing light crosstalk and mutual interference, the utility model receives the RGB light source in the receiving cavity 23, and the PCBA board 4 part is closely attached to the brim portion 22. By setting up a receiving cavity and installing the brim-type lens directly on the PCBA board, the height and light-emitting characteristics of the RGB light source are utilized to make the light shield closer to the RGB light source in the axial direction, fully ensuring the effects of light isolation, light channeling prevention and anti-interference, and reducing the light channeling phenomenon of the lens. In addition, the utility model also adopts two light mixing forms, air light mixing and lens light mixing, which is conducive to reducing the light mixing distance and saving space. It should be noted that the light source of the utility model includes but is not limited to an RGB light source, and can also be a monochromatic light source such as a monochromatic LED.

[0050] Furthermore, the cross-sectional shape of the accommodating cavity 23 is the same as the cross-sectional shape of the cap body 21 .

[0051] like Figures 2 to 5As shown, the shading component 3 is disposed between two adjacent sub-lenses 2, and the shading component 3 is configured to block the light emitted from the sub-lens 2 from entering the adjacent sub-lens. In a specific embodiment, the shading component 3 is a light shield, and the light shield has a plurality of light shielding channels 31 distributed in an array and adjacent to each other, and the light shielding channels 31 have openings connected at both ends and an inner wall 311 located between the two openings, and the shapes of the plurality of light shielding channels 31 match the shape of the cap body 21. Each cap body 21 is accommodated in a light shielding channel 31, and along the axial direction of the cap body, one of the openings abuts against the brim 22, and the other opening exceeds the cap body 21. The light emitted by each light source 1 is mixed once through the air, and then mixed twice in the corresponding cap body 21 before being emitted from the exit surface of the sub-lens, finally forming a light pattern with good light mixing. Moreover, the utility model prevents the light entering the cap body in the shading channel from entering the sub-lens in the adjacent shading channel through the inner wall 311 of the shading channel, so that the light emitted by the adjacent light sources is independently emitted after being mixed by the corresponding sub-lenses, and the mixed light of the two adjacent light sources is independent of each other, thereby fully ensuring the effects of light isolation, light channeling prevention and anti-interference. Furthermore, the outer diameter of the cap body matches the inner diameter of the shading channel, so that the side of the cap body 21 fits the inner wall 311 of the shading channel 31.

[0052] like Figure 5 to Figure 7(b) , the sunshade is an integrated structure.

[0053] Through holes are correspondingly provided at the edge of the shading hood and the edge of the lens, and the connector fixes the shading hood and the lens through the through holes, and an opening of the shading channel 31 of the shading hood abuts against the brim portion 22 of the sub-lens 21, and the brim portion 22 of the sub-lens contacts the PCBA board 4. In other embodiments, a protrusion and a through hole are respectively provided at the edge of the shading hood 3 and the edge of the lens, and the shading hood and the lens are fixedly connected by inserting the protrusion into the through hole.

[0054] The utility model utilizes the height and luminous angle of the light source in the primary light mixing area to greatly reduce the light crosstalk between adjacent pixels. The secondary light mixing area utilizes the opacity of the light shield to completely block the light propagation between adjacent pixels. The final light type pixel is clear, the color is correct, and there are no obvious defects. The array optical system of the utility model as a whole greatly reduces the light mixing distance of the light source, has a small overall size, and saves space.

[0055] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.

[0056] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify and vary the above embodiments within the scope of the present invention.

Claims

1. An array optical system, characterized in that: It includes: A plurality of light sources (1) arranged in an array; A lens having a plurality of sub-lenses (2) arranged in an array, each sub-lens (2) corresponding to a light source (1), and the sub-lens (2) being configured to image light emitted by the light source (1); The light shielding component (3) is arranged between two adjacent sub-lenses (2), and the light shielding component (3) is configured to shield light emitted from a sub-lens from entering an adjacent sub-lens.

2. The array optical system according to claim 1, characterized in that: A plurality of light sources (1) are arranged in a matrix, and a plurality of sub-lenses (2) are arranged in a matrix.

3. The array optical system according to claim 1, characterized in that: The sub-lens (2) comprises a body portion (21) and a brim portion (22), wherein the brim portion (22) is formed around one end surface of the body portion (21), and the brim portions (22) of two adjacent sub-lenses are connected to each other, the two adjacent body portions are spaced apart from each other, and the shading component (3) is inserted between the two adjacent body portions.

4. The array optical system according to claim 3, characterized in that: The cap body (21) and the cap brim (22) of the sub-lens (2) are integrally formed by injection molding, and the cap brims (22) of two adjacent sub-lenses are integrally formed by injection molding to be connected to each other; and The brim portion (22) is formed at the end of the cap body portion (21) away from the light emitting surface, and adjacent cap body portions (21) are spaced apart from each other at the light emitting end, thereby avoiding mutual interference of light emitted at the light emitting surface.

5. The array optical system according to claim 3, characterized in that: The light source (1) is an RGB light source. Along the axial direction of the cap body (21), an end of the cap body (21) having a brim portion (22) is recessed inward to form a receiving cavity (23). The brim portion (22) is connected to a PCBA board (4). A plurality of RGB light sources (1) are mounted on the PCBA board (4). The RGB light sources are received in the receiving cavity (23). Light emitted by the RGB light sources is mixed once through air in the receiving cavity and mixed twice in the cap body before being emitted from an exit surface of the sub-lens.

6. The array optical system according to claim 3, characterized in that: The thickness of the brim portion (22) is 5-20 mm.

7. The array optical system according to claim 1, characterized in that: The lens is a transparent lens, a semi-transparent lens, a sub-light lens or a partial dermatoglyphic lens.

8. The array optical system according to claim 5, characterized in that: The shading component (3) is a shading cover, and the shading cover has a plurality of shading channels (31). The plurality of shading channels (31) are distributed in an array, and the shading channels (31) have openings connected at both ends and inner walls located between the openings. Each cap body (21) is accommodated in a shading channel (31), and along the axial direction of the cap body (21), one of the openings abuts against the brim (22), and the other opening exceeds the cap body (21).

9. The array optical system according to claim 8, characterized in that: The light shield is an integrally formed structure.

10. The array optical system according to claim 8, characterized in that: The shape of the cap body (21) is cylindrical, circular, rhombic or hexagonal, and the shape of the light-shielding channel (31) matches the shape of the cap body. The shape of the cross section of the accommodating cavity (23) is the same as the shape of the cross section of the cap body (21).

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