Small module lens system
By adopting a sandwich-style small module lens system, using the combination of independent first array lens, shield and second array lens, the problem that existing small opening optical modeling design is difficult to achieve low cost and efficient optical functions is achieved, and Flexible design and efficient processing.
Patent Information
- Application Number
- CN202323665580.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-29
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2033-12-29
AI Technical Summary
The existing small opening optical styling design is difficult to achieve low-cost and efficient optical functions, and the traditional integrated microlens array has complex processing technology and high accuracy requirements, making it difficult to meet different styling design requirements.
A sandwich-type small module lens system is adopted, including a first array lens, a shield and a second array lens arranged independently. Each small module lens and a shield are one by one, and optical functions are realized through the superposition of multiple small modules.
It reduces processing difficulty and accuracy requirements, realizes low-cost optical design and application, improves design flexibility and performance optimization space, and can meet different design requirements.
Smart Images
Figure CN222480287U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of optical lenses, in particular to a small module lens system, in particular to a sandwich type small module lens system. Background Art
[0002] As optical design becomes more and more technological, small openings and slender optical shapes have become the mainstream development trend. Some optical functions are difficult to achieve low-cost small opening designs due to their high optical requirements, high power and low efficiency. The existing traditional integrated microlens array solution can meet the design requirements of optical function modules with small opening sizes. Its processing requires injection molding, coating, laser laser engraving (chemical corrosion) to produce a light-transmitting pattern, and finally injection molding again to complete the part processing. Due to its complex process and high precision requirements, it is difficult to apply it at a low cost. At the same time, the size of a single module of the traditional integrated microlens array can only be very small (micrometer level) due to optical design principles and processing problems (too large thickness, large deformation of parts), which is difficult to distinguish with the naked eye and cannot meet the different design requirements of a single module. In addition, the integrated design has few adjustable parameters and poor flexibility, which also makes it impossible to promote it widely. Utility Model Content
[0003] In view of the defects in the prior art, the purpose of the utility model is to provide a small module lens system.
[0004] According to the utility model, a small module lens system is provided, comprising: a first array lens, a shielding plate and a second array lens which are independently arranged;
[0005] The baffle plate is arranged between the first array lens and the second array lens; the first array lens includes a plurality of first module lenses, the baffle plate includes a plurality of module baffle plates, and the second array lens includes a plurality of second module lenses; the first module lenses, the module baffle plates and the second module lenses are arranged in a one-to-one correspondence.
[0006] Preferably, the focal lengths of several lenses of the first modules are the same or different, and the focal lengths of several lenses of the second modules are the same or different;
[0007] and / or, the thicknesses of several of the first module lenses are the same or different, and the thicknesses of several of the second module lenses are the same or different;
[0008] And / or, the sizes of several first module lenses are the same or different, and the sizes of several second module lenses are the same or different.
[0009] Preferably, a plurality of the first module lenses are completely identical, and a plurality of the second module lenses are completely identical.
[0010] Preferably, a single lens of the first module is in any of the following shapes: square, rectangle, triangle, hexagon, circle;
[0011] A single second module lens is in any of the following shapes: square, rectangular, triangular, hexagonal, or circular.
[0012] Preferably, a light-transmitting hollow pattern is provided on the shielding plate.
[0013] Preferably, the shielding plate can move up and down as a whole and / or a single module shielding plate can rotate freely;
[0014] When the shielding plate moves as a whole or a single module shielding plate rotates freely, light can pass through completely.
[0015] Preferably, it further comprises a light source system, wherein the first array lens is located between the light source system and the shielding plate;
[0016] The light emitted by the light source system is adjusted by the first array lens and then reaches the shielding plate, and the light passing through the shielding plate is adjusted by the second array lens and then emitted.
[0017] Preferably, the light source system comprises a light source and a condenser;
[0018] The light emitted by the light source reaches the first array lens after being adjusted by the condenser.
[0019] Preferably, the light source system comprises a light source and a reflector;
[0020] The light emitted by the light source reaches the first array lens after being adjusted by the reflector.
[0021] Preferably, the first array lens is made of any one of the following materials: polycarbonate, polymethyl methacrylate, glass;
[0022] The second array lens is made of any one of the following materials: polycarbonate, polymethyl methacrylate, and glass.
[0023] Compared with the prior art, the utility model has the following beneficial effects:
[0024] 1. Each component of the utility model is independently arranged, and each component is composed of multiple small modules. The one-to-one corresponding small modules can be regarded as an independent optical system. The final light type is formed by the superposition of multiple optical systems, which reduces the processing difficulty and realizes the low-precision optical design and low-cost application of small modules.
[0025] 2. The utility model adopts a sandwich optical system, in which light passes through the first array lens, the baffle plate, and the second array lens, so as to realize the optical function of a small opening module, and each part is easy to process, thereby reducing the processing difficulty and processing accuracy, and realizing low-cost functional application.
[0026] 3. The size of each small module of the utility model can be adjusted according to the design requirements, and is at the millimeter level, reaching a size visible to the naked eye, so different modeling design requirements can be achieved with a higher degree of freedom.
[0027] 4. The utility model adopts a sandwich optical system, and the focal length of each lens can be designed according to design requirements, thereby improving the flexibility of product design and the optimization space of performance.
[0028] 5. The utility model adopts a sandwich optical system, and the thickness of each module lens of the first array lens and the second array lens can be independently designed according to design requirements, thereby reducing the difficulty of lens processing and ensuring accuracy.
[0029] 6. The utility model makes the first array lens and the second array lens into one piece, thereby saving the design and production of a part and reducing the production cost.
[0030] 7. The utility model can independently adjust the light-transmitting hollow pattern on the shielding plate, thereby improving the flexibility of product design and the optimization space of performance.
[0031] 8. The baffle plate of the utility model can be moved up and down as a whole or a single module can be rotated freely. It is an optical function when it is in the designed position. When it is moved as a whole or a single module is rotated freely, light can be completely transmitted without shading, and another optical function can be realized, thereby finally realizing a design with dual optical functions in one. BRIEF DESCRIPTION OF THE DRAWINGS
[0032] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:
[0033] Figure 1 It is a side view of the small module lens system;
[0034] Figure 2 It is a schematic diagram of the functional distribution of the small module lens system and the local magnification of the module;
[0035] Figure 3 It is a front view of the shielding plate of the small module lens system and a partially enlarged schematic diagram;
[0036] Figure 4A schematic diagram of the optical principle of a single module of a small module lens system;
[0037] Figure 5 This is a schematic diagram of the processing of traditional small module lenses;
[0038] Figure 6 A schematic diagram showing the difference between a small module lens system and a traditional solution;
[0039] Figure 7 A schematic diagram of a small module lens system with a variable internal module shape;
[0040] Figure 8 It is a schematic diagram of the dual optical function of the small module lens system;
[0041] Fig. 9 It is a structural schematic diagram of a light source system of a small module lens system when the light source system comprises a light source and a condenser;
[0042] Fig.10 This is a schematic diagram of the structure when the light source system of the small module lens system includes a light source and a reflector.
[0043] The figure shows:
[0044] First array lens group 1 Second module lens 301
[0045] First module lens 101 Condenser 4
[0046] Shield 2 Reflector 5
[0047] Module shielding plate 201 light type 6
[0048] First baffle boundary 2011 First light pattern boundary 601
[0049] Second baffle boundary 2012 Second light pattern boundary 602
[0050] The third baffle boundary 2013 The third light pattern boundary 603
[0051] The second array lens group 3 DETAILED DESCRIPTION
[0052] The utility model is described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the utility model, but do not limit the utility model in any form. It should be pointed out that for those of ordinary skill in the art, several changes and improvements can be made without departing from the concept of the utility model. These all belong to the protection scope of the utility model.
[0053] Embodiment 1:
[0054] like Figures 1 to 8 As shown, this embodiment provides a small module lens system, including: a first array lens 1, a baffle plate 2 and a second array lens 3 which are independently arranged. The baffle plate 2 is arranged between the first array lens 1 and the second array lens 3; the first array lens 1 includes a plurality of first module lenses 101, the baffle plate 2 includes a plurality of module baffle plates 201, and the second array lens 3 includes a plurality of second module lenses 301; the first module lenses 101, the module baffle plates 201 and the second module lenses 301 are arranged in a one-to-one correspondence.
[0055] The shielding plate 2 is provided with a light-transmitting hollow pattern. The shielding plate 2 can move up and down as a whole and / or the single module shielding plate 201 can rotate freely; when the shielding plate 2 moves as a whole or the single module shielding plate 201 rotates freely, light can pass through completely. Figure 8 As shown, the upper figure is a schematic diagram of upward movement, and the lower figure is a schematic diagram of the rotation of a single module shielding plate.
[0056] In this embodiment, the single first module lens 101 is any of the following shapes: square, rectangle, triangle, hexagon, circle, and the single second module lens 301 is any of the following shapes: square, rectangle, triangle, hexagon, circle. In other embodiments, the single first module lens 101 and the single second module lens 301 can be set to other shapes other than the above shapes, such as irregular polygons, according to modeling requirements.
[0057] The focal lengths of the plurality of first module lenses 101 are the same or different, and the focal lengths of the plurality of second module lenses 301 are the same or different. The thicknesses of the plurality of first module lenses 101 are the same or different, and the thicknesses of the plurality of second module lenses 301 are the same or different. The sizes of the plurality of first module lenses 101 are the same or different, and the sizes of the plurality of second module lenses 301 are the same or different. In this embodiment, the plurality of first module lenses 101 are completely identical, and the plurality of second module lenses 301 are completely identical.
[0058] The small module lens system also includes a light source system, and the first array lens 1 is located between the light source system and the shielding plate 2. The light emitted by the light source system is adjusted by the first array lens 1 and reaches the shielding plate 2, and the light passing through the shielding plate 2 is adjusted by the second array lens 3 and then emitted.
[0059] like Fig. 9 As shown, in this embodiment, the light source system includes a light source and a condenser 4, and the light emitted by the light source is adjusted by the condenser 4 and reaches the first array lens 1. Fig.10 As shown, in other embodiments, it can also be configured as follows: the light source system includes a light source and a reflector 5; the light emitted by the light source is adjusted by the reflector 5 and reaches the first array lens 1.
[0060] In this embodiment, the light source is configured as a SMD LED, which is integrated on a PCBA or a heat sink and connected to the PCB board via a metal wire. In other embodiments, other light source types may be selected according to actual needs.
[0061] The first array lens 1 is made of any one of the following materials: polycarbonate, polymethyl methacrylate, glass. The second array lens 3 is made of any one of the following materials: polycarbonate, polymethyl methacrylate, glass.
[0062] The present embodiment provides a sandwich-type small module lens system design, which forms an optical system through a first array lens 1, a baffle plate 2 and a second array lens 3, thereby realizing the optical design of the small module. Each small module is an independent optical system, including multiple first module lenses 101, multiple module baffle plates 201 and multiple second module lenses 301. The first module lenses 101, the module baffle plates 201 and the second module lenses 301 correspond to each other one by one, and the final images are superimposed together to realize the optical function. The focal length and thickness of each module lens of the first array lens 1 and the second array lens 3 can be independently designed according to requirements, and the shape of the light-transmitting surface on the baffle plate 2 can also be independently designed according to requirements, thereby improving the flexibility of product design and the optimization space of performance. Moreover, each of the parts is conventional and easy to process, and the size of each small module is millimeter-level, reaching the size visible to the naked eye, so different modeling design requirements can be achieved, and the larger size also reduces the difficulty of processing, realizing the low-precision optical design and low-cost application of the small module.
[0063] Embodiment 2:
[0064] Those skilled in the art may understand this embodiment as a more specific description of Embodiment 1.
[0065] like Figures 1 to 7 As shown, this embodiment provides a sandwich-type small module lens system, including a first array lens 1, a baffle plate 2, and a second array lens 3. Among them, the first array lens 1 includes a plurality of first module lenses 101, the baffle plate 2 includes a plurality of module baffle plates 201, and the second array lens 3 includes a plurality of second module lenses 301. In this embodiment, the first module lens 101, the module baffle plate 201, and the second module lens 301 are all set to 100. In other embodiments, any number of first module lenses 101, module baffle plates 201, and second module lenses 301 can be set according to the modeling requirements.
[0066] The module lens and the module shielding plate in each array lens correspond one to one. Two paraxial light beams are emitted from the infinitely far point light source L. One light beam LO1 propagates along the optical axis, passes through the center of the first module lens 101, and directly reaches the module shielding plate 201. The light beams O1'O2 pass through the light-transmitting hollow pattern area designed thereon and reach the light-entering surface of the second module lens 301, and directly pass through the lens to reach the 25m screen. Another light beam LH1 with an angle of α is refracted through the light incident surface of the first module lens 101, and then the light beams H1H1' propagate in the lens and reach the light exit surface of the first module lens 101. After refraction, they reach the focal plane of the lens. The light beams H1'H2 pass through the light-transmitting hollow pattern area designed thereon and reach the light incident surface of the second module lens 301, where they are refracted again and pass through the lens to reach the light exit surface of the second module lens 301. The light beams H2'L1' are refracted and reach the 25m screen. Finally, the two light beams at infinity are blocked by the module shielding plate 201 and form a magnified inverted image on the 25m screen.
[0067] It converges at the focal point O of the light-emitting surface of the first lens, then reaches the light-incident surface of the second array lens 3 through the light-transmitting hollow pattern area designed on the baffle plate 2, passes through the second lens array 3 and converges from the light-emitting surface to the 25m screen. Finally, the images formed by all the modules are superimposed together to realize the optical function.
[0068] Furthermore, the focal length of each module lens of the first array lens 1 and the second array lens 3 can be independently designed according to design requirements.
[0069] Furthermore, the thickness of each module lens of the first array lens 1 and the second array lens 3 can be independently designed according to design requirements.
[0070] Furthermore, the size of each module lens of the first array lens 1 and the second array lens 3 can be adjusted according to the modeling requirements and are all in the millimeter level.
[0071] Furthermore, the first array lens 1 and the second array lens 3 can be made completely identical according to design requirements, thus saving the design and production of a part.
[0072] Furthermore, the shape of each module lens of the first array lens 1 and the second array lens 3 can be adjusted according to the modeling requirements, and can be a conventional shape such as a square, rectangle, triangle, hexagon, etc., or a custom graphic shape.
[0073] Furthermore, the light-transmitting hollow pattern on the shielding plate 2 can also be independently designed according to requirements.
[0074] Furthermore, the baffle plate 2 can be moved up and down as a whole or a single module can be freely rotated, which is an optical function when in the designed position. When the whole is moved or a single module is freely rotated, light can be completely transmitted without shading, and another optical function can be achieved, thereby ultimately realizing a design with dual optical functions in one.
[0075] Furthermore, the light source system of the sandwich-type small module lens system design can be an optical system such as a spherical lens, a condenser or a reflector.
[0076] Furthermore, the materials of the first array lens 1 and the second array lens 3 are polycarbonate (ie PC) or polymethyl methacrylate (ie PMMA) or glass.
[0077] More specifically, Figure 1 As shown, a sandwich-type small module lens system design includes a first array lens 1, a shielding plate 2, and a second array lens 3. Each part of this design is conventional and easy to process, thereby reducing the processing difficulty and processing accuracy, and realizing low-cost functional applications. Figure 5 As shown in the figure, the traditional integrated microlens array processing needs to be processed by injection molding, coating, laser engraving (chemical etching) to produce a light-transmitting pattern, and finally injection molding again to complete the part processing. Due to its complex process and high precision requirements, it is difficult to apply it at a low cost.
[0078] like Figure 2 As shown, the small module lens system in this embodiment is a small module with an opening less than 15mm. The size of a single module can be defined according to the modeling requirements. In this embodiment, the small module lens system is set to a module with an opening of 10mm*10mm, wherein the size of a single module lens is 1mm*1mm. The first array lens 1 includes 100 first module lenses 101 arranged in a 10*10 pattern, and the size of the first array lens 1 is 10mm*10mm. Similarly, the size of the second array lens 3 and the baffle plate 2 is also 10mm*10mm. Therefore, the small module lens system is set to an opening size of 10mm*10mm. In other embodiments, module lenses and module baffle plates of any size, any number, and any shape can be set according to the modeling requirements to realize a small module lens system with the same or different opening sizes.
[0079] In this embodiment, the first array lens 1 includes 100 first module lenses 101, the shielding plate 2 includes 100 module shielding plates 201, and the second array lens 3 includes 100 second module lenses 301. The module lenses and shielding plates in each array lens correspond to each other one by one. The AA section optical design principle diagram of one optical module group is shown in FIG. Figure 4As shown, it includes a first module lens 101, a module baffle 201 and a second module lens 301. Two paraxial light beams are emitted from a point light source L at infinity. One light beam LO1 propagates along the optical axis, passes through the center of the first module lens 101, and directly reaches the module baffle 201. Light beams O1'O2 pass through the light-transmitting hollow pattern area designed thereon to reach the light incident surface of the second module lens 301, and directly pass through the lens to reach the 25m screen. Another light beam LH1 with an angle of α is refracted through the light incident surface of the first module lens 101, and then the light beams H1H1' propagate in the lens and reach the light exit surface of the first module lens 101. After refraction, they reach the focal plane of the lens. The light beams H1'H2 pass through the light-transmitting hollow pattern area designed thereon and reach the light incident surface of the second module lens 301, where they are refracted again and pass through the lens to reach the light exit surface of the second module lens 301. The light beams H2'L1' are refracted and reach the 25m screen. Finally, the two light beams at infinity are blocked by the module shielding plate 201 and form a magnified inverted image on the 25m screen.
[0080] More specifically, the light-transmitting hollow pattern on the shielding plate 2 can also be independently designed according to requirements, such as Figure 3 As shown in the enlarged view of two connected module baffles 201, the first baffle boundary 2011 of the module baffle 201 corresponds to the first light pattern boundary 601 of the light pattern 6, the second baffle boundary 2012 of the module baffle 201 corresponds to the second light pattern boundary 602 of the light pattern 6, and the third baffle boundary 2013 of the module baffle 201 corresponds to the third light pattern boundary 603 of the light pattern 6, and the light rays transmitted through all modules are finally superimposed to form the entire light pattern.
[0081] More specifically, the thickness of each module lens of the first array lens 1 and the second array lens 3 can be independently designed according to design requirements, and the size of each module lens of the first array lens 1 and the second array lens 3 can be adjusted according to modeling requirements and are all in the millimeter level. Figure 7 As shown in the figure, there are two small module lens systems with opening sizes less than 15mm. If the lens group with an opening size of 10mm*10mm is designed, the single module lens can be set to a square with a size of 2.5mm*2.5mm, arranged in a 4*4 pattern, or a regular hexagon with a side length of 3mm, or other shapes, such as rectangles, triangles and other conventional shapes, or custom graphic shapes. However, the size of a single module of a traditional integrated microlens array can only be very small (micrometer level) due to optical design principles and processing problems (too large thickness, large deformation of parts), such as Figure 6As shown, the smaller the focal length, the greater the curvature of the lens and the smaller the size. However, in order to ensure the overall thickness of the lens, the focal length of a single module of the integrated microlens array module can only be reduced. Therefore, it is difficult to distinguish with the naked eye and cannot meet the different design requirements of a single module. In addition, the integrated design has few adjustable parameters and poor flexibility, which also makes it difficult to promote it widely.
[0082] More specifically, Figure 8 As shown, the baffle plate 2 can be moved up and down as a whole or a single module can be rotated freely. It is an optical function when in the design position. When the whole moves or a single module rotates freely, light can pass through completely without shading, and another optical function can be realized, thereby ultimately realizing a design with dual optical functions in one.
[0083] By adjusting the module baffle in the baffle 2, the small module lens system can be configured to produce multiple light distributions, and the types of the multiple light distributions are different. The type of each light distribution is any one of the following: low beam lighting, high beam lighting, adaptive low beam lighting, ADB high beam lighting, corner fog lamp lighting, city road mode lighting, country road mode lighting, highway mode lighting, bend mode lighting, rain and fog mode lighting, position signal lights, turn signal lights, daytime running lights, welcome lights, and ambient lights.
[0084] The utility model provides a sandwich-type small module lens system that can be used to realize optical functions. Each part of the sandwich design is easy to process, thereby reducing the processing difficulty and processing accuracy of the small opening module, while also providing more design flexibility and performance optimization space, and ultimately realizing the application of optical functions at a low cost.
[0085] In the description of the present application, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.
[0086] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essence of the present invention. In the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other at will.
Claims
1. A small module lens system, characterized in that: include: A first array lens (1), a shielding plate (2), and a second array lens (3) which are independently arranged; The shielding plate (2) is arranged between the first array lens (1) and the second array lens (3); the first array lens (1) comprises a plurality of first module lenses (101), the shielding plate (2) comprises a plurality of module shielding plates (201), and the second array lens (3) comprises a plurality of second module lenses (301); the first module lenses (101), the module shielding plates (201), and the second module lenses (301) are arranged in a one-to-one correspondence; The shielding plate (2) can move up and down as a whole and / or a single module shielding plate (201) can rotate freely; When the shielding plate (2) moves as a whole or a single module shielding plate (201) rotates freely, light can pass through completely.
2. The small module lens system according to claim 1, characterized in that: The focal lengths of a plurality of the first module lenses (101) are the same or different, and the focal lengths of a plurality of the second module lenses (301) are the same or different; and / or, the thicknesses of a plurality of the first module lenses (101) are the same or different, and the thicknesses of a plurality of the second module lenses (301) are the same or different; And / or, the sizes of several first module lenses (101) are the same or different, and the sizes of several second module lenses (301) are the same or different.
3. The small module lens system according to claim 1, characterized in that: A plurality of the first module lenses (101) are completely identical, and a plurality of the second module lenses (301) are completely identical.
4. The small module lens system according to claim 1, characterized in that: A single first module lens (101) is in any of the following shapes: square, rectangle, triangle, hexagon, or circle; A single second module lens (301) is in any of the following shapes: square, rectangle, triangle, hexagon, or circle.
5. The small module lens system according to claim 1, characterized in that: The shielding plate (2) is provided with a light-transmitting hollow pattern.
6. The small module lens system according to claim 1, characterized in that: It also comprises a light source system, wherein the first array lens (1) is located between the light source system and the shielding plate (2); The light emitted by the light source system is adjusted by the first array lens (1) and reaches the shielding plate (2), and the light passing through the shielding plate (2) is adjusted by the second array lens (3) and then emitted.
7. The small module lens system according to claim 6, characterized in that: The light source system comprises a light source and a condenser (4); The light emitted by the light source is adjusted by the condenser (4) and reaches the first array lens (1).
8. The small module lens system according to claim 6, characterized in that: The light source system comprises a light source and a reflector (5); The light emitted by the light source reaches the first array lens (1) after being adjusted by the reflector (5).
9. The small module lens system according to claim 1, characterized in that: The first array lens (1) is made of any one of the following materials: polycarbonate, polymethyl methacrylate, or glass; The second array lens (3) is made of any one of the following materials: polycarbonate, polymethyl methacrylate, and glass.