An adjustable suppression polarization camera module
By using an adjustable rotating carrier and polarizer structure, the problems of glare and ghosting when shooting on highly reflective surfaces by mobile phone cameras are solved, enabling flexible adjustment of polarized light and improving image quality.
Patent Information
- Application Number
- CN202522114276.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-30
- Publication Date
- 2026-11-06
- Estimated Expiration
- 2035-09-30
AI Technical Summary
When shooting highly reflective surfaces, existing mobile phone cameras cannot adapt to complex and changing lighting environments due to the fixed-angle polarizer, resulting in glare, ghosting, and loss of contrast, leading to a poor user experience.
It adopts an adjustable rotating carrier and polarizer structure. The position of the magnet is sensed by a Hall element, and the magnetic field generated by the coil is used to control the rotating carrier, so as to achieve flexible adjustment of the polarizer angle. Combined with the ball structure, the rotation smoothness is improved.
It enables effective adjustment of polarized light under different lighting conditions, improving image quality and enhancing user experience.
Smart Images
Figure CN224947624U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of camera modules, specifically to an adjustable polarization suppression camera module. Background Technology
[0002] With the rapid development of mobile communication technology, smartphones have become increasingly powerful in their camera functions, making them a primary tool for recording life. However, when shooting scenes with highly reflective surfaces, such as shimmering water, car windows, or smooth plastic or ceramic products, polarized light from these surfaces can enter the camera lens, resulting in severe glare, ghosting, and loss of contrast in the final image, leading to poor image quality.
[0003] Currently, while there are technologies that eliminate polarized light by adding a fixed-angle polarizing filter in front of the lens, this solution is mainly used in professional cameras. For mobile phone cameras, fixed-angle polarizers cannot adapt to complex and changing lighting environments and shooting angles. Their filtering effect is limited, and they sacrifice some light intake, resulting in a poor user experience. Therefore, there is an urgent need in this field for an efficient depolarization solution that can be integrated into a mobile phone camera and flexibly adjusted to adapt to different polarization angles. Utility Model Content
[0004] The present invention aims to provide an adjustable polarization suppression camera module that can be flexibly adjusted to adapt to different polarization angles.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: an adjustable polarization suppression camera module, comprising a fixed carrier and a rotating carrier rotatably connected, the fixed carrier being installed in front of the lens, and a polarizer being fixed on the rotating carrier, the polarizer being used to block polarized light in front of the lens.
[0006] The beneficial effects of this plan are: 1. The fixed carrier can be fixed to the camera module or other fixed structures. Its core function is to block the lens. By rotating the carrier, the imaging effect after the polarizer filter is optimized. Then, after confirming that the imaging effect is optimal, the rotation of the carrier is stopped.
[0007] 2. Different environments produce different polarized light, so it is necessary to adjust the incident angle of polarized light to reflect or absorb polarized light in order to obtain higher quality images.
[0008] Furthermore, both the fixed carrier and the rotating carrier are annular, with the rotating carrier rotatably connected to the inside of the fixed carrier, and the polarizer fixed to the inside of the rotating carrier.
[0009] Furthermore, it also includes a rotating component, which includes an arc-shaped magnet and a coil. The magnet is fixed on the outside of the rotating carrier, and the coil is fixed on the inside of the fixed carrier and corresponds to the position of the magnet. A magnetic field is generated by energizing a coil, which attracts a magnet, thereby causing the rotating carrier to rotate.
[0010] Furthermore, a Hall element is provided inside the coil, which is used to sense the position of the magnet.
[0011] Furthermore, the fixed carrier has three grooves on its inner circumferential side, and a sliding groove at the bottom of the groove. The track axis is set along the circumferential direction, and a ball is placed in the sliding groove. The rotating carrier has three protrusions on its outer side that correspond to the grooves. The protrusions are all accommodated in the grooves, and a spherical groove is opened on the lower surface of the protrusion. The ball is accommodated in the spherical groove. When the rotating carrier rotates, the protrusions drive the balls to roll or slide in the grooves, and the grooves are used to limit the rotation range of the protrusions.
[0012] This solution also has the following effects: 1. The position of the rotating carrier is determined by sensing the position of the magnet through the Hall element. Then, the coil is energized, and the magnetic field generated by the coil attracts the magnet to rotate. The operator observes the imaging effect and stops energizing the coil when the imaging effect is optimal, thereby adjusting the angle of the polarizer.
[0013] 2. By incorporating ball bearings, the rotation of the rotating carrier becomes smoother, thereby increasing the durability of the structure. Attached Figure Description
[0014] Figure 1 A three-dimensional diagram of an embodiment; Figure 2 A three-dimensional view of the fixed carrier, rotating carrier, and polarizer in the embodiment; Figure 3 A three-dimensional view of the fixed carrier in the embodiment; Figure 4 A top-view 3D view of the rotating carrier in the embodiment; Figure 5 The image shows a three-dimensional view of the rotating carrier as an example. Detailed Implementation
[0015] The following detailed description illustrates the specific implementation method: The reference numerals in the accompanying drawings include: protective shell 1, fixing carrier 2, groove 21, slide 22, rotating carrier 3, protrusion 31, spherical groove 32, polarizer 4, magnet 5, magnetic sensing module 6, and motor 7.
[0016] Example The implementation examples are basically as follows Figures 1-5As shown: An adjustable polarization-suppressing camera module includes a protective shell 1, a fixed carrier 2, a rotating carrier 3, and a rotating assembly. The fixed carrier 2 is adhered to the motor 7 of the camera module and mounted in front of the lens, as shown. Figure 2 , Figure 3 As shown, both the fixed carrier 2 and the rotating carrier 3 are annular. The rotating carrier 3 is rotatably connected to the inside of the fixed carrier 2. A polarizer 4 is glued and fixed to the inside of the rotating carrier 3. The polarizer 4 is used to block polarized light in front of the lens. The protective shell 1 covers the fixed carrier 2. The lower edge of the protective shell 1 is glued to the motor 7. A round hole is opened on the protective shell 1 to expose the polarizer 4.
[0017] The rotating assembly includes a controller, a Hall element, a coil, and a magnet 5. The controller is electrically connected to the Hall element and the coil, respectively.
[0018] like Figure 3 As shown, the fixed carrier 2 has three grooves 21 circumferentially formed on its inner side, and each groove 21 has a sliding groove 22 at its bottom. The track axis is set circumferentially, and a ball bearing (not shown) is provided in the sliding groove 22. The fixed carrier 2 also includes an arc-shaped magnetic sensing module 6, which is located between two of the grooves 21. The magnetic sensing module 6 includes a shell, and the shell has a cavity inside. In this embodiment, the controller is bonded to the shell. A fixing tube is provided on the side of the cavity near the rotating carrier 3 (the inner side of the fixed carrier 2). The fixing tube and the shell are integrally formed. A coil is wound on the fixing tube, and a Hall sensor is bonded inside the fixing tube.
[0019] The rotating carrier 3 has three protrusions 31 on its outer side that correspond to the groove 21. All protrusions 31 are accommodated in the groove 21. The lower surface of the protrusions 31 has a spherical groove 32, and the upper part of the ball is accommodated in the spherical groove 32. An arc-shaped magnet 5 is attached to the outer side of the rotating carrier 3. The position of the magnet 5 corresponds to that of the magnetic sensing module 6.
[0020] Based on the Hall effect, the Hall element senses the position of the magnet 5 through the voltage change generated by the magnet 5, and then sends a signal to the controller. The controller controls the coil to be energized to generate a magnetic field, attracting the magnet 5, thereby driving the rotating carrier 3 to rotate. The protrusion 31 drives the ball to roll or slide in the groove 22, and the groove 21 is used to limit the rotation range of the protrusion 31.
[0021] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.
Claims
1. An adjustable polarization-suppressing camera module, characterized in that: It includes a fixed carrier and a rotating carrier with a rotating connection. The fixed carrier is installed in front of the lens, and a polarizer is fixed on the rotating carrier. The polarizer is used to block polarized light in front of the lens. Both the fixed carrier and the rotating carrier are annular, with the rotating carrier rotatably connected to the inside of the fixed carrier, and the polarizer fixed to the inside of the rotating carrier; It also includes a rotating component, which includes an arc-shaped magnet and a coil. The magnet is fixed on the outside of the rotating carrier, and the coil is fixed on the inside of the fixed carrier and corresponds to the position of the magnet. A magnetic field is generated by energizing a coil, which attracts a magnet, thereby causing the rotating carrier to rotate.
2. The adjustable polarization suppression camera module according to claim 1, characterized in that: The coil contains a Hall element, which is used to sense the position of the magnet.
3. The adjustable polarization suppression camera module according to claim 2, characterized in that: The fixed carrier has three grooves on its inner circumferential side, and a sliding groove at the bottom of the groove. The track axis is set along the circumferential side, and a ball is placed in the sliding groove. The rotating carrier has three protrusions on its outer side that correspond to the grooves. The protrusions are all accommodated in the grooves, and a spherical groove is opened on the lower surface of the protrusion. The ball is accommodated in the spherical groove. When the rotating carrier rotates, the protrusions drive the balls to roll or slide in the grooves, and the grooves are used to limit the rotation range of the protrusions.