Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the specification and the drawings, elements that have the same function and structure are denoted with the same reference numerals, and repeated explanation of these structural elements is omitted.
 figure 1 Shown is a schematic structural diagram of a single-stage antenna. The cross-sectional shape of the monopole antenna 1 can be arbitrary, but the preferred solution is circular. The single-stage antenna with a circular cross-section has better performance than antennas with other shapes, and is convenient for extended installation in the spectacle frame; secondly, the single-stage antenna designed by the invention is applicable to all wireless fields.
 like figure 2 , image 3 As shown, the bluetooth 3D glasses include glasses legs 6, glasses frames 4, two liquid crystal glasses lenses 5, and a PCB board 2, and also include a single-stage antenna 1, and one end of the single-stage antenna 1 is installed on the PCB board 2 The other end protrudes from the outside of the PCB board 2 and extends inside the spectacle frame 4 . According to this structure, the area of the PCB board for disposing the antenna can be saved. First of all, the single-stage antenna has only one feeder pin, and secondly, the required antenna environment for the single-stage antenna is different from that of a PCB printed antenna or a CHIP antenna. PCB printed antennas or CHIP antennas require a larger PCB area.
 specific, figure 2 Shown is a schematic diagram of a single-stage antenna soldered to the feed point at the upper right of the PCB. The single-stage antenna 1 is welded on the feed point 3 of the PCB board 2, and other parts are arranged inside it along the frame above the right lens of the glasses.
 In addition, one end of the single-stage antenna can also be soldered to the feed point on the upper left of the PCB, and the other parts of the single-stage antenna are arranged inside it along the frame above the left lens of the glasses.
 The Bluetooth 3D glasses can also include a nose wing 7 fixedly installed on the glasses frame 4, one end of the single-stage antenna is welded at the feed point at the bottom right of the PCB board, and the other parts of the single-stage antenna extend downward along the sides of the nose wing. Inside the frame below the right lens. Alternatively, one end of the single-stage antenna is soldered to the feed point at the lower left of the PCB, and the other parts of the single-stage antenna extend downward along both sides of the nose and are installed inside the frame below the left lens. Due to the change of the position of the monopole antenna, the shape of the monopole antenna can change accordingly.
 Preferably, the single-stage antenna has a clear space below the antenna and no metal, and this design works best. A single-stage antenna without headroom has no effect on power, but it will affect sensitivity, which is greatly affected by the surrounding environment of the antenna.
 Figure 4 What is shown is a schematic diagram of the completed assembly of the Bluetooth 3D glasses with the single-stage antenna located above the right lens. The designed bluetooth 3D glasses are installed inside, the back cover is covered and the assembly is completed.
 In addition, in the Bluetooth 3D glasses involved in the present invention, the preferred material of the single-stage antenna is phosphor copper. The surface of phosphor copper and beryllium copper is gold-plated. There is not much difference in conductivity, but the structural performance of the former is worse than that of the latter, and the elasticity of the latter is much better than the former, but the price of beryllium copper is more than twice as expensive as that of phosphor copper. In addition, the conductivity of stainless steel is not much worse than that of phosphor copper and beryllium copper, and its physical properties such as elasticity are better than the former two; the price is also another advantage of it, generally half cheaper than phosphor copper. Therefore, phosphor copper is preferred.
 In summary, the bluetooth 3D glasses of the present invention have glasses legs, a spectacle frame, and two liquid crystal glasses. The bluetooth 3D glasses also include a single-stage antenna, one end of which is mounted on the PCB, and the other end extends out of the PCB. The outer side of the board and extend inside the spectacle frame. This solution efficiently utilizes the space inside the glasses frame, designs an antenna that can be placed inside, saves PCB board area, reduces costs, and the overall ID of glasses is light and simple.
 The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present invention are included in the protection scope of the present invention.