A high-luminance portable tooth whitening device
By employing a transparent curved reflector cup design in the portable teeth whitening device, and utilizing the concave points and reflective film to reflect and refract light multiple times, the problems of low light efficiency and unevenness are solved, achieving high brightness and uniform teeth whitening effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANCHANG OPTICAL PORCELAIN TECHNOLOGY CO LTD
- Filing Date
- 2025-08-26
- Publication Date
- 2026-07-24
AI Technical Summary
Existing portable teeth whitening devices have low and uneven light intensity, resulting in poor teeth whitening effects.
It adopts a transparent curved reflective cup design, combined with densely packed concave dots and reflective film, to focus light onto the tooth surface through multiple reflections and refractions, thereby improving the brightness and uniformity of light.
It significantly improves the brightness and uniformity of the teeth whitening device, ensuring that the whitening gel is evenly activated on every tooth, thus enhancing whitening efficiency and effectiveness.
Smart Images

Figure CN224540363U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical devices, and in particular to a high-brightness portable teeth whitening device. Background Technology
[0002] With increasing attention to personal image and oral health, teeth whitening has become a common consumer demand. A wide variety of teeth whitening products are available on the market. Among them, portable teeth whitening devices that use whitening gel in conjunction with light of a specific wavelength (usually blue light) are widely popular due to their ease of use and significant effects.
[0003] Existing portable teeth whitening devices typically use LED lights as the light source. By directly irradiating the surface of teeth coated with whitening gel, the whitening ingredients in the gel are activated to break down pigments and whiten teeth. However, existing whitening devices generally have the following shortcomings: Low light efficiency: Many devices use only simple LED light arrays and planar reflective structures, resulting in low light energy utilization and insufficient light lumens (brightness) illuminating the tooth surface, which affects the catalytic efficiency of whitening gel.
[0004] Uneven lighting: Poorly designed light sources can lead to uneven light exposure on the tooth surface, resulting in differences in teeth whitening effects and potentially producing patches or spots that affect the overall aesthetics. Utility Model Content
[0005] The purpose of this invention is to provide a high-brightness portable teeth whitening device to improve the brightness and uniformity of the light emitted by the portable teeth whitening device, thereby enhancing the whitening effect.
[0006] To achieve the above objectives, the technical solution adopted by this utility model is: to provide a high-brightness portable teeth whitening device, the high-brightness portable teeth whitening device comprising: The housing has magnets at both ends that are magnetically connected to the opening device; LED light bar, the LED light bar is fixed inside the housing by a light bar support frame, and a number of LED beads are evenly distributed on the LED light bar; A reflector cup is fixed inside the housing and covers the LED light array. The reflector cup has a transparent curved structure. A groove for accommodating the LED beads is provided on the raised back surface of the reflector cup, and the raised back surface of the reflector cup is densely covered with dimples. A reflective film is electroplated on the raised back surface of the reflector cup, and a lens for improving illuminance is provided in front of the reflective film. The thickness of the lens is 1~2 mm. A battery is disposed inside the housing and is electrically connected to the LED light array.
[0007] In one embodiment, a lip protector is also included, which is mounted and fixed to the edge of the reflector.
[0008] In one embodiment, a control unit is further included, which includes a control circuit board and a control button. The control circuit board is disposed on the circuit connecting the battery and the LED array, and the control button is disposed on the housing and electrically connected to the control circuit board.
[0009] In one embodiment, a voice prompt unit is further included, which is disposed inside the housing and electrically connected to the control circuit board.
[0010] In one embodiment, a cooling fan is further included, which is disposed inside the housing and electrically connected to the control circuit board.
[0011] In one embodiment, a charging base is also included, and a charging hole is provided on the housing, with the charging base being inserted into the charging hole.
[0012] In one embodiment, the charging base is provided with a base bracket, which is in close contact with the outer surface of the housing.
[0013] The above-described technical solutions in the embodiments of this utility model have at least the following technical effects or advantages: The high-brightness portable teeth whitening device provided in this embodiment features a specially structured curved transparent reflector cup. First, the raised surface of the reflector cup has grooves for accommodating LED beads, ensuring a close fit between the light source and the reflective surface. Second, the numerous dimples and electroplated reflective film on the raised surface constitute a highly efficient diffuse reflection system. When the LED beads emit light, the light is reflected and refracted multiple times and at multiple angles by the combined action of these dimples and the reflective film. Finally, the reflected light passes through a lens for further focusing and shaping, collimating or converging the beam, thus successfully "capturing" and redirecting light energy that would otherwise diffuse outside the teeth (such as the lips and gums) back to the tooth surface. This significantly increases the luminous flux (light energy) projected onto a unit area of the teeth, directly improving illuminance. This series of optical designs not only significantly improves the brightness (lumens) of the final emitted light, but also ensures extremely uniform light distribution, effectively avoiding the problem of localized over-brightness or under-brightness. This ensures that every tooth receives consistent light intensity, thereby fully activating the whitening gel and greatly improving the whitening efficiency and final effect of the teeth whitening device. Attached Figure Description
[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, 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.
[0015] Figure 1 A schematic diagram of the high-brightness portable teeth whitening device during charging, as provided in this embodiment of the utility model; Figure 2 A schematic diagram of the structure of the high-brightness portable teeth whitening device provided in this embodiment of the utility model; Figure 3 An exploded view of the high-brightness portable teeth whitening device provided in this embodiment of the utility model; Figure 4 This is a schematic diagram of the reflector cup provided in an embodiment of the present utility model.
[0016] The labels for the various figures are as follows: 1. Housing; 2. LED light bar; 3. Reflector; 4. Battery; 5. Lip protector; 6. Control circuit board; 7. Voice prompt unit; 8. Cooling fan; 9. Charging base; 11. Magnet; 12. Heat dissipation holes; 21. LED beads; 22. Light bar support frame; 91. Base bracket. Detailed Implementation
[0017] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.
[0018] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0019] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0020] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0021] Please see Figures 1 to 4 The high-brightness portable teeth whitening device provided in this application includes a housing 1, an LED light array 2, a reflector cup 3, and a battery 4. Magnets 10, which are magnetically connected to the teeth whitening device, are provided at both ends of the housing 1. The LED light array 2 is fixed inside the housing 1 by a light array support frame 22, and a plurality of LED beads 21 are evenly distributed on the LED light array 2. The reflector cup 3 is fixed inside the housing 1 and covers the LED light array 2; the reflector cup 3 has a transparent curved structure, and grooves for accommodating the LED beads 21 are provided on the raised back surface of the reflector cup 3, and the raised back surface of the reflector cup 3 is densely covered with dimples. A reflective film is electroplated on the raised back surface of the reflector cup 3, and a lens for improving illuminance is provided in front of the reflective film, the lens having a thickness of 1-2 mm. The battery 4 is disposed inside the housing 1 and is electrically connected to the LED light array 2.
[0022] This embodiment provides a high-brightness portable teeth whitening device. The whitening device mainly consists of two parts: the whitening device body and the charging base 9.
[0023] The main body of the whitening device consists of an arc-shaped housing 1. Inside the housing 1, an LED light bar 2 is fixed by a light bar support frame 22. Several LED beads 21 are evenly soldered onto the light bar as the whitening light source.
[0024] The core component of this embodiment is the reflector cup 3. This reflector cup 3 is also fixed inside the housing 1 and covers the LED array 2. This reflector cup 3 is not a traditional simple electroplated cup, but a precision-designed optical element. It is made of transparent material and has an overall curved structure. On its raised surface facing away from the teeth, grooves corresponding to the position and size of the LED beads 21 are precisely set, allowing the beads to be embedded within them. Simultaneously, the entire raised surface on the back is machined with dense micro-dimples, and a highly reflective reflective film is electroplated onto this surface.
[0025] Inside the housing 1, a battery 4, a circuit board, and a cooling fan 8 are also installed. The battery 4 (usually a rechargeable lithium battery) powers the entire device and is electrically connected to the circuit board, LED array 2, and fan via wires. The user can start or stop the device using a control button located on the outside of the housing 1. Upon startup, the LED array 2 illuminates, and the cooling fan 8 starts working to dissipate the heat generated by the LEDs from the housing 1 (heat dissipation holes 12 can be provided on the housing 1 near the cooling fan 8 to facilitate heat dissipation) and prevent overheating.
[0026] At each end of the housing 1, there is a metal plate, which is actually a magnet 10, used to magnetically attach to the user's dental mouth opener (commonly known as a "teeth holder"), making it easy to fix the whitening device in the mouth. At the very front of the whitening device, on the edge of the reflector cup 3, a lip protector 5 is inserted to separate the lips and protect them when the light is on, preventing burning discomfort caused by the light. This lip protector 5 is usually made of medical-grade flexible silicone or TPE material, which has good elasticity and biocompatibility.
[0027] When the high-brightness portable teeth whitening device provided in this application is working, the light emitted by the LED beads 21 propagates in all directions. The rearward-propagating light illuminates the raised surface on the back with concave dots and a reflective film. Due to the presence of the concave dots and the reflective film, the light is efficiently diffused forward, forming a uniform light field and eliminating light spots and dark areas. These reflected lights merge with the light emitted directly forward by the LED beads 21 and pass together through the transparent reflective cup 3 with a certain curvature. The cup acts as a lens, focusing and shaping the light to form a high-brightness, highly uniform whitening beam that evenly illuminates the user's teeth surface, thereby achieving an efficient and uniform teeth whitening effect.
[0028] In one embodiment, a control unit is also included, which includes a control circuit board 6 and a control button. The control circuit board 6 is disposed on the circuit connecting the battery 4 and the LED light array 2, and the control button is disposed on the housing 1. The control button is electrically connected to the control circuit board 6.
[0029] The control circuit board 6 integrates a microcontroller (MCU), a power management chip, and a driver circuit. One or more control buttons are located at appropriate positions on the exterior of the housing 1 (for easy user operation). These buttons are electrically connected to the control circuit board 6 via physical connection or an FPC flexible cable. Users can turn the device on / off, set the whitening time (e.g., preset 10 minutes, 15 minutes, and 20 minutes), and adjust the light intensity by short presses, long presses, or combinations of different buttons, allowing for flexible selection of whitening time based on different dental conditions. The control circuit board 6 precisely controls the working state of the LED light array 2 according to the instructions and automatically turns off the light source after the preset time.
[0030] The addition of a control unit transforms the whitening device from a simple "switch" into a smart electronic product. It enables precise control and automated management of the whitening process. Users can choose the appropriate mode based on their needs and dentist recommendations. The timer function, in particular, ensures that each whitening treatment is completed within a scientifically sound and effective timeframe, preventing over- or under-treatment due to forgetting the time, thus enhancing convenience, safety, and scientific rigor.
[0031] In one embodiment, a voice prompt unit 7 is also included. The voice prompt unit 7 is disposed inside the housing 1 and is electrically connected to the control circuit board 6. Specifically, it includes a speaker and a voice processing chip (which may be integrated on the control circuit board 6). Through pre-recorded or synthesized voice segments, the device can broadcast announcements at specific points. For example, it may announce "Whitening device is turned on" when the device is turned on, "15-minute mode" when a mode is selected, and "Whitening complete..." when the whitening process is finished.
[0032] Because the device is located inside the mouth during use, users cannot easily observe the indicator lights or screen. The voice prompt function clearly conveys the device status and operating instructions to the user through the most intuitive auditory means, solving the "information blind spot" during use, making operation more intuitive and foolproof. In particular, when the end of the treatment is indicated, the user does not need to use an external timer, making the user experience more user-friendly and high-end.
[0033] In one embodiment, a cooling fan 8 is also included, which is disposed inside the housing 1 and electrically connected to the control circuit board 6.
[0034] Specifically, the fan is a miniature DC brushless fan or blower, cleverly placed inside the housing 1 near the LED light array 2 and the circuit board. The housing 1 has concealed air inlets and outlets. When the control circuit board 6 activates the LED light array 2, it simultaneously supplies power to the fan to make it run, generating internal air convection and actively and quickly expelling the heat generated by the LED beads 21 and electronic components from the outside of the housing.
[0035] The cooling fan 8 effectively solves the heat accumulation problem caused by high-power LEDs. First, it ensures that the LED beads 21 operate within a suitable temperature range, preventing light decay and shortened lifespan due to overheating, and ensuring long-term stable high lumen output of the whitening device. Second, it prevents heat from being transferred to the outer surface of the casing 1 and the reflector cup 3, eliminating the burning sensation that users may feel in their mouths, and improving comfort and safety during long-term wear.
[0036] In one embodiment, a charging base 9 is also included. The housing 1 has a charging port, and the charging base 9 is plugged into the charging port. The base consists of a base plate, a pressure plate, a base body, and a base support 91. A pressure plate is placed inside the base plate to increase the weight and stability of the base. A base support 91, with a shape matching the outer surface of the housing 1, is vertically mounted on the base. When charging or placement is required, the whitening device body can be placed on the base support 91 (the base support 91 ensures the stability of the whitening device on the base and the reliability of the charging connection). The housing 1 has a charging port, which plugs into the charging port on the base to charge the internal battery 4 (e.g., ...). Figure 1 (As shown).
[0037] To further improve the stability of the whitening device during charging, magnets 11 can be installed on the housing 1 and the base bracket 91. The magnetic attraction of the two magnets 11 can be used to make the whitening device adhere and fix it on the base bracket 91 during charging.
[0038] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A high-brightness portable teeth whitening device, characterized in that, The high-brightness portable teeth whitening device includes: The housing has magnets at both ends that are magnetically connected to the opening device; LED light bar, the LED light bar is fixed inside the housing by a light bar support frame, and a number of LED beads are evenly distributed on the LED light bar; A reflector cup is fixed inside the housing and covers the LED light array. The reflector cup has a transparent curved structure. A groove for accommodating the LED beads is provided on the raised back surface of the reflector cup, and the raised back surface of the reflector cup is densely covered with dimples. A reflective film is electroplated on the raised back surface of the reflector cup. A lens for improving illuminance is provided in front of the reflective film, and the thickness of the lens is 1-2 mm. A battery is disposed inside the housing and is electrically connected to the LED light array.
2. The high-brightness portable teeth whitening device according to claim 1, characterized in that: It also includes a lip protector, which is mounted and fixed to the edge of the reflector.
3. The high-brightness portable teeth whitening device according to claim 1, characterized in that: It also includes a control unit, which includes a control circuit board and control buttons. The control circuit board is disposed on the circuit connecting the battery and the LED array, and the control buttons are disposed on the housing and electrically connected to the control circuit board.
4. The high-brightness portable teeth whitening device according to claim 3, characterized in that: It also includes a voice prompt unit, which is disposed inside the housing and is electrically connected to the control circuit board.
5. A high-brightness portable teeth whitening device according to claim 3, characterized in that: It also includes a cooling fan, which is disposed inside the housing and electrically connected to the control circuit board.
6. The high-brightness portable teeth whitening device according to claim 1, characterized in that: It also includes a charging base, on which a charging hole is provided, and the charging base is plugged into the charging hole.
7. A high-brightness portable teeth whitening device according to claim 6, characterized in that: The charging base is provided with a base bracket, which is in close contact with the outer surface of the casing.