A lens and a mouse

Abstract

The utility model discloses a kind of lens and mouse, including bearing and the first lens and second lens of setting on bearing;First lens includes the first light entrance surface for receiving light, the first light exit surface for the light that enters the first lens is transmitted;Second lens includes the second light entrance surface for receiving the light that is transmitted by first light exit surface and is reflected by object surface, the second light exit surface for the light that enters second lens is transmitted;First light exit surface is provided with ground glass layer, ground glass layer is used to make the light that first light exit surface transmits diffuse reflection, avoid the local over-bright or dark area that concentrated incident light forms in first lens interior, and then make the light intensity distribution that first light exit surface transmits more uniform, beam divergence angle more controllable.

Description

Technical Field

[0001] This utility model relates to the field of optical lenses, and in particular to a lens and a mouse. Background Technology

[0002] Currently, the mouse lens is one of the important components affecting the sensitivity of optical mice. The mouse emits light through the LED light on the bottom. This light passes through the lens on the mouse lens and is projected onto the desktop or mouse pad. The light is then reflected back onto the mouse lens and captured by the photosensitive element inside the mouse, thereby detecting the mouse movement and positioning the cursor.

[0003] The tracking performance of existing mice is highly dependent on the intensity and quality of the light signal reflected from the surface of the object. However, traditional lens designs have defects. For example, on dark, rough, or high-gloss surfaces, traditional solutions are prone to two extreme problems: low reflectivity surfaces may result in tracking loss due to insufficient signal strength, while high-gloss surfaces may cause signal overload interference due to specular reflection. Ultimately, this limits the adaptability of the mouse in diverse usage scenarios. Therefore, a lens and mouse are provided to solve the above problems. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, this utility model provides a lens and a mouse.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] This utility model provides a lens, including a carrier and a first lens and a second lens disposed on the carrier; the first lens includes a first light-incident surface for receiving light and a first light-exiting surface for transmitting light entering the first lens; the second lens includes a second light-incident surface for receiving light transmitted from the first light-exiting surface and reflected by the surface of an object, and a second light-exiting surface for transmitting light entering the second lens; a frosted layer is disposed on the first light-exiting surface, the frosted layer being used to diffusely reflect the light transmitted from the first light-exiting surface.

[0007] Preferably, the carrier is provided with a light-focusing groove, and the first lens and the second lens are located in the light-focusing groove. Through the semi-enclosed structure design of the light-focusing groove, the propagation path of light in the lens system is constrained, while providing rigid support and positioning reference for the first lens and the second lens. Ultimately, the directional transmission of light and the improvement of signal purity are achieved, so that the mouse can maintain high-precision positioning in complex lighting environments and reduce signal strength damage caused by ambient light.

[0008] Preferably, the first lens and the second lens are connected, and the ends of the first lens and the second lens that are not close to each other are set on the carrier. The rigid connection between the lenses and the carrier are used to ensure the relative position stability of the first lens and the second lens, avoid optical axis deviation due to vibration or assembly error, and maintain the long-term consistency of the optical parameters of the lens system (such as focal length and optical axis angle). This allows the mouse to output a stable tracking signal in different usage scenarios and significantly extends the product's service life.

[0009] Preferably, the support component includes a base plate and a side plate disposed on the side of the base plate away from the object surface. The light-focusing groove includes a first opening on the base plate. Light rays transmitted through the first light-emitting surface pass through the first opening to the object surface and are reflected onto the second light-incident surface. Through the combined design of the base plate and the side plate, a light-focusing groove structure with a clear light path is constructed. The first opening serves as a dedicated channel for light emission and reflection, optimizing the interaction efficiency between the light and the object surface, reducing energy loss during propagation, and enabling the second light-incident surface to capture stronger reflected signals, thereby improving the sensitivity of the mouse on low reflectivity surfaces.

[0010] Preferably, the end of the second lens furthest from the side plate extends at least partially out of the first opening. This design of extending the second lens partially out of the first opening shortens its distance from the object surface and optimizes the angle of reflected light reception. At the same time, it avoids the side plate blocking the reflected light, ultimately achieving efficient capture of reflected light, reducing signal attenuation caused by the lens being too high, and enabling the mouse to maintain stable tracking on dark or textured surfaces.

[0011] Preferably, the focusing groove further includes a second opening, which is formed by surrounding the end of the side plate away from the bottom plate. The end of the first lens away from the bottom plate does not extend out of the second opening. The first opening and the second opening are connected, and the second opening provides assembly space for the first lens.

[0012] Preferably, the carrier also includes an extension plate, which is connected to the base plate and located on the same plane. The extension plate is located at the end of the base plate away from the second lens. The design of the extension plate expands the physical size of the carrier, providing installation space for other components inside the mouse (such as circuit boards and light sources) and facilitating the installation of the carrier. At the same time, the coplanar connection with the base plate enhances the overall structural strength, avoiding component interference or structural deformation caused by insufficient space. Ultimately, this achieves a compact layout and long-term stability of the internal components of the mouse, improving product integration and durability.

[0013] Preferably, the height of the first light-incident surface relative to the horizontal plane is higher than the height of the second light-incident surface relative to the horizontal plane. By designing the lens height differently, the propagation path of light in the lens system is optimized: the first light-out surface illuminates the object surface at a more reasonable angle, and the second light-incident surface receives the reflected light at the best position, reducing signal loss caused by improper angles. Ultimately, this allows the mouse to maintain accurate positioning on tilted or irregular surfaces, improving its adaptability to complex usage scenarios.

[0014] Preferably, the carrier, the first lens, and the second lens are all made of light-transmitting material and are integrally molded. The carrier, the first lens, and the second lens are manufactured using an integral molding process, which eliminates assembly gaps to avoid light loss due to refraction or reflection at the interface. At the same time, it simplifies the production process and reduces manufacturing costs, ultimately achieving a high degree of consistency in the optical performance of the lens system, reducing optical path deviations caused by assembly errors, and significantly improving the tracking accuracy and response speed of the mouse.

[0015] A mouse includes a lens, which comprises a carrier and a first lens and a second lens disposed on the carrier. The first lens includes a first light-incident surface for receiving light and a first light-exiting surface for transmitting light entering the first lens. The second lens includes a second light-incident surface for receiving light transmitted from the first light-exiting surface and reflected by an object surface, and a second light-exiting surface for transmitting light entering the second lens. A frosted layer is disposed on the first light-exiting surface to diffusely reflect the light transmitted from the first light-exiting surface, thereby avoiding local overheating or signal overload of the lens caused by concentrated light spots, while suppressing specular reflection interference. Ultimately, this achieves uniform distribution of light within the lens system, improves the mouse's adaptability to different surface materials (such as high-gloss or rough surfaces), and makes the tracking signal more stable and more resistant to interference.

[0016] The beneficial effects of this utility model are as follows: Through the above-described structural design, the use of a frosted layer on the first light-emitting surface allows for diffuse reflection of the incident light through the rough surface structure of the frosted layer, achieving a uniform distribution of light. This avoids the formation of locally bright or dark areas within the first lens by concentrated incident light, resulting in a more uniform intensity distribution of light transmitted from the first light-emitting surface and more controllable beam divergence angle. Simultaneously, the diffuse reflection characteristics of the frosted layer suppress specular reflection effects, reducing glare interference caused by reflection from object surfaces (such as high-gloss materials). This enhances the adaptability of the lens system to different material surfaces, ensuring that the second light-emitting surface of the second lens can stably receive reflected light. Ultimately, this results in a higher signal-to-noise ratio and consistency in the optical signal output from the second light-emitting surface, significantly improving the optical tracking accuracy and reliability of the lens in complex working environments. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the following description of the embodiments will be briefly introduced. The drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is one of the schematic diagrams of the lens cross-section structure of this utility model;

[0020] Figure 2 This is one of the schematic diagrams of the lens cross-section structure of this utility model;

[0021] Figure 3 This is the third schematic diagram of the lens cross-section structure of this utility model;

[0022] Figure 4 This is a partial cross-sectional structural diagram of the mouse according to this utility model;

[0023] Figure 5 This is a schematic diagram of the lens installation of this utility model;

[0024] Figure 6 This is a schematic diagram of the main planar aspect of the lens of this utility model.

[0025] The reference numerals in the figures include:

[0026] 1. Supporting component; 2. Focusing slot; 3. First lens; 4. Second lens; 5. Circuit board; 6. Sensor assembly; 7. Mouse bottom shell; 11. Base plate; 12. Side plate; 13. First opening; 14. Second opening; 15. Extension plate; 31. First light-incident surface; 32. First light-exiting surface; 33. Frosted layer; 41. Second light-incident surface; 42. Second light-exiting surface; 61. Photosensitive element; 62. LED light-emitting lamp bead. Detailed Implementation

[0027] Reference Figures 1 to 6 A lens includes a carrier 1 and a first lens 3 and a second lens 4 disposed on the carrier 1; the first lens 3 includes a first light-incident surface 31 for receiving light and a first light-exiting surface 32 for transmitting light entering the first lens; the second lens 4 includes a second light-incident surface 41 for receiving light transmitted from the first light-exiting surface 32 and reflected by the surface of an object, and a second light-exiting surface 42 for transmitting light entering the second lens; a frosted layer 33 is disposed on the first light-exiting surface 32, the frosted layer 33 being used to diffusely reflect the light transmitted from the first light-exiting surface 32.

[0028] Through the above structural design, the use of a frosted layer 33 on the first light-emitting surface 32 allows for diffuse reflection of incident light due to the rough surface structure of the frosted layer 33. This achieves a uniform distribution of light, preventing concentrated incident light from forming localized overly bright or dark areas inside the first lens 3. Consequently, the intensity distribution of light transmitted from the first light-emitting surface 32 becomes more uniform, and the beam divergence angle becomes more controllable. Simultaneously, the diffuse reflection characteristics of the frosted layer 33 suppress specular reflection effects, reducing glare interference caused by reflection from object surfaces (such as high-gloss materials). This enhances the adaptability of the lens system to different surface materials, ensuring that the second light-incident surface 41 of the second lens 4 can stably receive reflected light. Ultimately, this results in a higher signal-to-noise ratio and consistency in the optical signal output from the second light-emitting surface 42, significantly improving the optical tracking accuracy and reliability of the lens in complex working environments.

[0029] Specifically, the area of ​​the frosted layer 33 is equal to the area of ​​the first light-emitting surface 32, and is used to diffuse the light transmitted through the first light-emitting surface 32.

[0030] Specifically, the frosted layer 33 is arranged in an arc shape.

[0031] Specifically, the thickness of the first lens 3 is 0.5mm-1.5mm. In this embodiment, the thickness of the first lens 3 includes 0.5mm and 1.5mm.

[0032] Specifically, the first light-incident surface 31 and the first light-exit surface 32 are disposed on opposite sides of the first lens 3, and the second light-exit surface 42 and the second light-incident surface 41 are disposed on opposite sides of the second lens 4.

[0033] Specifically, the optical axis of the second lens 4 has an angle with the horizontal plane, and the angle ranges from 0 to 90 degrees. In the embodiments of this application, the angle includes 90 degrees.

[0034] Specifically, the curvature value of the second light-incident surface 41 is not less than the curvature value of the second light-exiting surface 42.

[0035] Specifically, for ease of understanding, please refer to Figure 4 The mouse using the lens provided in this application includes a housing, a circuit board 5 disposed within the housing, a sensor assembly 6, and a lens. The circuit board 5 is electrically connected to the sensor assembly 6. The lens is the lens provided in this application. The sensor assembly 6 includes a photosensitive element 61 and an LED light-emitting bead 62. The light emitted by the LED light-emitting bead 62 enters the first lens 3 through the first light-incident surface 31 and is transmitted to the surface of the object through the first light-emitting surface 32. After being reflected by the surface of the object, it enters the second lens 4 through the second light-incident surface 41 and is transmitted to the photosensitive element 61 through the second light-emitting surface 42.

[0036] Specifically, the mouse also includes a mouse base shell 7, and the carrier 1 is clamped and limited on the mouse base shell 7.

[0037] Specifically, the key innovative technology of this application lies in the lens; therefore, when describing mouse components, only the relevant components need to be described, and other mouse components will not be described in detail. It can be understood that the object surface can be the surface of a desktop, a mouse pad, or other objects, as long as the mouse can slide on it and reflect light.

[0038] Specifically, the carrier 1 is provided with a light-concentrating groove 2, and the first lens 3 and the second lens 4 are located in the light-concentrating groove 2. Through the semi-enclosed structure design of the light-concentrating groove 2, the propagation path of light in the lens system is constrained, while providing rigid support and positioning reference for the first lens 3 and the second lens 4. Ultimately, the directional transmission of light and the improvement of signal purity are achieved, so that the mouse can maintain high-precision positioning in complex lighting environments and reduce signal strength damage caused by ambient light.

[0039] Specifically, the first lens 3 and the second lens 4 are connected. The ends of the first lens 3 and the second lens 4 that are not close to each other are set on the carrier 1. The rigid connection between the lenses and the carrier 1 are used to ensure the relative positional stability of the first lens 3 and the second lens 4, avoid optical axis deviation due to vibration or assembly error, and maintain the long-term consistency of the optical parameters of the lens system (such as focal length and optical axis angle). This allows the mouse to output a stable tracking signal in different usage scenarios and significantly extends the product's service life.

[0040] Specifically, the carrier 1 includes a base plate 11 and a side plate 12 disposed on the side of the base plate 11 away from the object surface. The light-concentrating groove 2 includes a first opening 13 provided on the base plate 11. Light transmitted through the first light-emitting surface 32 passes through the first opening 13 to the object surface and is reflected on the second light-incident surface 41. Through the combined design of the base plate 11 and the side plate 12, a light-concentrating groove 2 structure with a clear light path is constructed. The first opening 13 serves as a dedicated channel for light emission and reflection, optimizing the interaction efficiency between the light and the object surface, reducing energy loss during propagation, and enabling the second light-incident surface 41 to capture stronger reflected signals, thereby improving the sensitivity of the mouse on low reflectivity surfaces.

[0041] Specifically, a latching protrusion is provided at the end of the side plate 12 away from the base plate 11. The thickness of the latching protrusion is smaller than the thickness of the side plate 12. Both the side plate 12 and the latching protrusion are arranged in a ring shape. The latching protrusion is designed in an inverted trapezoidal shape to clamp and limit the mouse.

[0042] Specifically, the end of the second lens 4 away from the side plate 12 extends at least partially out of the first opening 13, and the end of the first lens 3 away from the side plate 12 is not lower than the end of the second lens 4 away from the side plate 12. The design of extending the second lens 4 partially out of the first opening 13 shortens its distance from the object surface and optimizes the angle of reflected light reception. At the same time, it avoids the side plate 12 from blocking the reflected light, and finally achieves efficient capture of reflected light, reduces signal attenuation caused by the lens position being too high, and enables the mouse to maintain stable tracking on dark or textured surfaces.

[0043] Specifically, the end of the first lens 3 furthest from the side plate 12 does not extend out of the first opening 13.

[0044] Specifically, the focusing groove 2 also includes a second opening 14, which is formed by surrounding one end of the side plate 12 away from the bottom plate 11. The end of the first lens 3 away from the bottom plate 11 does not extend out of the second opening 14. The first opening 13 and the second opening 14 are connected, and the second opening 14 provides assembly space for the first lens 3.

[0045] Specifically, the opening size of the second opening 14 is larger than the opening size of the first opening 13.

[0046] Specifically, the carrier 1 also includes an extension plate 15, which is connected to the base plate 11 and located on the same plane. The extension plate 15 is located at the end of the base plate 11 away from the second lens 4. The design of the extension plate 15 expands the physical size of the carrier 1, providing installation space for other components inside the mouse (such as circuit boards and light sources) and facilitating the installation of the carrier 1. At the same time, the coplanar connection with the base plate 11 enhances the overall structural strength, avoids component interference or structural deformation due to insufficient space, and ultimately achieves a compact layout and long-term stability of the internal components of the mouse, improving product integration and durability.

[0047] Specifically, the extension plate 15 extends outwards from the base plate 11 in a wrapping manner.

[0048] Specifically, the height of the first light-incident surface 31 relative to the horizontal plane is higher than the height of the second light-incident surface 41 relative to the horizontal plane. By designing the lens height differently, the propagation path of light in the lens system is optimized: the first light-outceasing surface 32 illuminates the object surface at a more reasonable angle, and the second light-incident surface 41 receives the reflected light at the best position, reducing signal loss caused by improper angles. Ultimately, the mouse can still maintain accurate positioning on tilted or irregular surfaces, improving its adaptability to complex usage scenarios.

[0049] Specifically, in this embodiment, the height of the first light-incident surface 31 relative to the horizontal plane is higher than the height of the second light-exiting surface 42 relative to the horizontal plane; the height of the second light-exiting surface 42 relative to the horizontal plane is higher than the height of the first light-exiting surface 32 relative to the horizontal plane; and the height of the first light-exiting surface 32 relative to the horizontal plane is higher than the height of the second light-incident surface 41 relative to the horizontal plane.

[0050] Specifically, the carrier 1, the first lens 3, the second lens 4, and the extension plate 15 are all made of light-transmitting material and are integrally molded. The carrier 1, the first lens 3, and the second lens 4 are manufactured using an integral molding process to eliminate assembly gaps to avoid light loss due to refraction or reflection at the interface. At the same time, the production process is simplified and the manufacturing cost is reduced, ultimately achieving a high degree of consistency in the optical performance of the lens system, reducing optical path deviations caused by assembly errors, and significantly improving the tracking accuracy and response speed of the mouse.

[0051] A mouse includes a lens, which comprises a carrier 1 and a first lens 3 and a second lens 4 disposed on the carrier 1. The first lens 3 includes a first light-incident surface 31 for receiving light and a first light-exiting surface 32 for transmitting light entering the first lens. The second lens 4 includes a second light-incident surface 41 for receiving light transmitted from the first light-exiting surface 32 and reflected by an object surface, and a second light-exiting surface 42 for transmitting light entering the second lens. A frosted layer 33 is disposed on the first light-exiting surface 32. The frosted layer 33 is used to diffusely reflect the light transmitted from the first light-exiting surface 32 to avoid local overheating or signal overload of the lens caused by concentrated light spots, while suppressing specular reflection interference. Ultimately, it achieves uniform distribution of light within the lens system, improves the mouse's adaptability to different material surfaces (such as high-gloss or rough surfaces), and makes the tracking signal more stable and more resistant to interference.

[0052] The above description provides one or more embodiments in conjunction with specific content, but it is not intended that the specific implementation of this utility model is limited to these descriptions. Any methods or structures that are similar to or identical to those of this utility model, or any technical deductions or substitutions made based on the concept of this utility model, should be considered within the scope of protection of this utility model.

Claims

1. A lens, comprising a carrier (1) and a first lens (3) and a second lens (4) disposed on the carrier (1); the first lens (3) comprising a first light-incident surface (31) for receiving light and a first light-exit surface (32) for transmitting light entering the first lens (3); the second lens (4) comprising a second light-incident surface (41) for receiving light transmitted from the first light-exit surface (32) and reflected by an object surface, and a second light-exit surface (42) for transmitting light entering the second lens (4); characterized in that: A frosted layer (33) is provided on the first lens (3), which is used to diffuse the light transmitted through the first light-emitting surface (32).

2. The lens according to claim 1, characterized in that, A frosted layer (33) is disposed on the first light-emitting surface (32) of the first lens (3) to diffuse the light transmitted through the first light-emitting surface (32).

3. The lens according to claim 1, characterized in that, The frosted layer (33) is set in an arc shape.

4. The lens according to claim 1, characterized in that, The carrier (1) is provided with a focusing groove (2), and the first lens (3) and the second lens (4) are connected to each other. The first lens (3) and the second lens (4) are located in the focusing groove (2) and connected to the carrier (1).

5. The lens according to claim 3 or 4, characterized in that, The carrier (1) includes a base plate (11) and a side plate (12) provided on the base plate (11). The light-concentrating groove (2) includes a first opening (13) provided on the base plate (11). The light transmitted through the first light-emitting surface (32) passes through the first opening (13) to the surface of the object and is reflected on the second light-incident surface (41).

6. The lens according to claim 5, characterized in that, The end of the second lens (4) away from the side plate (12) extends at least partially out of the first opening (13), and the end of the first lens (3) away from the side plate (12) is not lower than the end of the second lens (4) away from the side plate (12).

7. The lens according to claim 6, characterized in that, The focusing groove (2) also includes a second opening (14), which is formed by surrounding the end of the side plate (12) away from the bottom plate (11). The end of the first lens (3) away from the bottom plate (11) does not extend out of the second opening (14). The first opening (13) and the second opening (14) are connected.

8. The lens according to claim 5, characterized in that, The support member (1) also includes an extension plate (15), which is connected to the base plate (11) and located on the same plane. The extension plate (15) is located at the end of the base plate (11) away from the second lens (4).

9. The lens according to any one of claims 1-4 or 6-8, characterized in that, The thickness of the first lens (3) is between 0.5mm and 1.5mm.

10. A mouse, characterized in that, Includes a lens, wherein the lens is the lens as described in any one of claims 1-9.

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