Optical motor for precise control of lens deflection angle

Abstract

The application discloses an optical motor for precisely controlling a deflection angle of a lens, relates to the technical field of portable devices, and comprises an optical lens, spacers are arranged on four edges of the optical lens, the spacers can play a role of a magnetic yoke, a magnet group is arranged outside the spacers, a coil is arranged at a position corresponding to the magnet group, and the coil and the magnet group jointly generate a thrust when the coil is electrified, so that the optical lens is pushed to vibrate; a sheet-shaped spring is further arranged at an upper end of the optical lens, the sheet-shaped spring can provide a restoring force and a balance moment for the optical lens when the optical lens vibrates, so that the vibration of the optical lens is quickly stabilized, and an FPCB circuit board is further arranged on a mounting base, the FPC circuit board is used for connecting a control signal of the coil, and the deflection angle of the lens can be precisely controlled through the application, the structure is compact, the assembly process is relatively simple, and the application is suitable for portable devices.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of portable devices, and specifically relates to an optical motor for precisely controlling a deflection angle of a lens. BACKGROUND

[0002] A polarizer, also known as a polarizing lens, is a kind of color filter. The outstanding function of a polarizer is to selectively allow light of a certain direction of vibration to pass through, which is often used to eliminate or weaken the strong reflection of non-metal surfaces in color and black-and-white photography, so as to eliminate or reduce light spots.

[0003] The patent file with the publication number CN211956088U discloses a module capable of improving the projection display resolution of a projector. The projector is composed of a chip, a prism combination, a lens, and a display screen. The prism combination and the lens are provided with a module. The module is composed of a fixed combination and a moving combination. The fixed combination includes a fixed frame. The moving combination is composed of an optical filter, a magnet, a power mechanism A, and a power mechanism B. The power mechanism A is composed of a coil A and two corresponding elastic pieces A for fixing the optical filter and the fixed frame. The power mechanism B is composed of a coil B and two corresponding elastic pieces B for fixing the optical filter and the fixed frame. The module is externally connected with an electrically conductive FPC soft board or a wire group. The present application has the advantages of improving the projection display resolution of the projector and making the display quality delicate and smooth.

[0004] In the existing technology, the device for controlling the deflection angle of a polarizer is often complex in structure, difficult to assemble, and has a small application range. In order to solve the above problems, the present application provides an optical motor for precisely controlling the deflection angle of a lens. SUMMARY

[0005] The purpose of the present application is to provide an optical motor for precisely controlling the deflection angle of a lens.

[0006] The technical problem to be solved by the present application is how to accurately adjust the angle of a polarizer while making the adjusting device more simple and the installation process simpler, and suitable for portable devices.

[0007] The purpose of the present application can be achieved by the following technical scheme: an optical motor for precisely controlling the deflection angle of a lens, comprising a mounting base and a shell. A sheet-shaped spring is mounted on the upper end face of the mounting base. An optical lens is arranged at the upper end of the sheet-shaped spring. Four magnetic groups are arranged on the four side faces of the optical lens. A gasket is arranged between the four magnetic groups and the optical lens. A coil is arranged on the side of the magnetic group away from the gasket. The optical lens, the magnetic group, and the coil are all installed in the shell.

[0008] As a further place of the present application, the upper end surface of the mounting base is provided with four limiting clamping columns, and the middle part of the mounting base is provided with a mounting groove, four flat corners are opened at the four top corners of the mounting groove, and the four limiting clamping columns are respectively installed between the four flat corners of the mounting groove and the four top corners of the mounting base.

[0009] As a further place of the present application, the four top corners of the sheet-shaped reed are provided with reed mounting ends, and the middle part of the four reed mounting ends is provided with a mounting hole, and the sheet-shaped reed is embedded and installed in the limiting clamping column through the mounting hole on the reed mounting end.

[0010] As a further place of the present application, the magnet group is composed of a plurality of magnets, and the magnet group is placed outside the gasket, the gasket plays the role of a magnetic yoke, and the magnet group can be composed of a plurality of magnets or a single magnet using a multi-pole magnetization method.

[0011] As a further place of the present application, the shape of the optical lens is consistent with the shape of the mounting groove. As a further place of the present application, the middle part of the shell is provided with a lens groove, and the four top corners of the shell are provided with clamping grooves, the limiting clamping column is embedded into the clamping groove, and the lower end of the four sides of the shell is provided with two fixed clamps.

[0012] As a further place of the present application, the assembly steps of the optical motor are as follows:

[0013] Step one: place the gasket on the four sides of the optical lens, and then place the magnet group outside the gasket, the gasket plays the role of a magnetic yoke, and the magnet group can be composed of a plurality of magnets or a single magnet using a multi-pole magnetization method, and the coil is placed on the side away from the gasket of the magnet group;

[0014] Step two: install a sheet-shaped reed on the upper end of the optical lens, assemble the middle part of the sheet-shaped reed on the optical lens, the four top corners of the sheet-shaped reed are provided with reed mounting ends, and the sheet-shaped reed is fixed on the limiting clamping column of the mounting base through the reed mounting end;

[0015] Step three: the mounting base is provided with an FPCB circuit board, the FPCB circuit board is electrically connected with the coil, and finally the shell is sleeved on the mounting base.

[0016] The beneficial effects of the present application: the present application is provided with optical lens, has the effect of changing the light propagation path, the gasket is placed in the four edges of the optical lens, the gasket can play the role of magnetic yoke, and the magnet group is placed outside the gasket, the magnet group can be composed of multiple magnets, or a single magnet can be composed of multiple magnets; the coil is placed at the corresponding external position of the magnet group, and the coil generates thrust when electrified, thereby pushing the optical lens to vibrate; a sheet-shaped reed is further installed at the upper end of the optical lens, the middle of the sheet-shaped reed is assembled on the optical lens, and the peripheral reed mounting end is fixed on the mounting base, the sheet-shaped reed can provide restoring force and balancing moment for the optical lens when the optical lens vibrates, thereby making the optical lens quickly stable, and the FPCB circuit board is further arranged on the mounting base, the FPCB circuit board is used for connecting the control signal of the control coil, the shell is arranged to protect the internal components, and the present application can accurately control the deflection angle of the lens, the structure is compact, the assembly process is relatively simple, and the present application is suitable for portable devices. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creating laborious work.

[0018] Fig. 1 is a structural schematic view of the optical motor for accurately controlling the deflection angle of the lens;

[0019] Fig. 2 is a sectional view of the optical motor for accurately controlling the deflection angle of the lens.

[0020] In the figure: 1, mounting base; 101, mounting groove; 102, limiting clamping column; 2, FPCB circuit board; 3, sheet-shaped reed; 301, reed mounting end; 4, coil; 5, magnet group; 6, gasket; 7, optical lens; 8, shell; 801, fixed clamping; 802, lens groove. DETAILED DESCRIPTION

[0021] In this paper, the phrase "embodiment" means that the specific features, structures or characteristics described in conjunction with the embodiment can be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily mean the same embodiment, nor is it an independent or alternative embodiment that is not mutually exclusive with other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0022] As shown in Figure 1-2, the optical motor for precisely controlling the deflection angle of the lens includes a mounting base 1, a mounting groove 101, a limiting clamping column 102, an FPCB circuit board 2, a sheet-shaped spring 3, a spring mounting end 301, a coil 4, a magnet group 5, a gasket 6, an optical lens 7, a shell 8, a fixed clamp 801, and a lens groove 802. The sheet-shaped spring 3 is mounted on the upper end surface of the mounting base 1, the upper end of the sheet-shaped spring 3 is provided with the optical lens 7, the four side surfaces of the optical lens 7 are provided with the magnet group 5, the gasket 6 is arranged between the four magnet groups 5 and the optical lens 7, the coil 4 is arranged on the side of the magnet group 5 away from the gasket 6, and the optical lens 7, the magnet group 5, and the coil 4 are all mounted in the shell 8. The coil 4 is placed at the corresponding external position of the magnet group 5. After the coil 4 is electrified, the coil 4 and the magnet group 5 jointly generate a thrust force to push the optical lens 7 to vibrate. Then, the sheet-shaped spring 3 provides a restoring force and a balance moment when the optical lens 7 vibrates. The sheet-shaped spring 3 is assembled on the optical lens 7 in the middle and the spring mounting end 301 at the periphery is fixed on the mounting base 1. The FPCB circuit board 2 is also arranged on the mounting base 1. The FPCB circuit board 2 is fixed on the mounting base 1 and is connected to and controls the coil 4. The shell 8 has a protective effect.

[0023] The two coils 4 are opposite to each other and form a group. In the specific implementation process, the two coils 4 can be connected in series or in parallel.

[0024] The upper end surface of the mounting base 1 is provided with four limiting clamping columns 102, and the middle part of the mounting base 1 is provided with a mounting groove 101. Four flat corners are formed at the four top corners of the mounting groove 101. The four limiting clamping columns 102 are respectively arranged between the four flat corners of the mounting groove 101 and the four top corners of the mounting base 1.

[0025] The four top corners of the sheet-shaped spring 3 are provided with the spring mounting end 301, and the middle part of the four spring mounting ends 301 is provided with a mounting hole. The sheet-shaped spring 3 is embedded and mounted in the limiting clamping column 102 through the mounting hole on the spring mounting end 301.

[0026] The magnet group 5 is composed of a plurality of magnets. The magnet group 5 is placed outside the gasket 6. The gasket 6 has a magnetic yoke effect. The magnet group 5 can be composed of a plurality of magnets or a single magnet in a multi-pole magnetization mode.

[0027] The shape of the optical lens 7 is consistent with the shape of the mounting groove 101.

[0028] The middle part of the shell 8 is provided with a lens groove 802, and the four top corners of the shell 8 are provided with clamping grooves, and the limiting clamping columns 102 are embedded into the clamping grooves.

[0029] The assembly steps of the optical motor are as follows:

[0030] Step one: placing the gasket 6 on the four edges of the optical lens 7, and then placing the magnet group 5 outside the gasket 6, the gasket 6 functions as a magnetic yoke, the magnet group 5 can be composed of multiple magnets, or a single magnet can be composed by adopting a multi-pole magnetization method, and the coil 4 is placed on the side away from the gasket 6 of the magnet group 5; after the coil 4 is electrified, the coil 4 and the magnet group 5 jointly generate a thrust force to push the optical lens 7 to vibrate;

[0031] Step two: installing a sheet-shaped spring piece 3 on the upper end of the optical lens 7, assembling the middle part of the sheet-shaped spring piece 3 on the optical lens 7, and setting the four top corners of the sheet-shaped spring piece 3 with spring piece mounting ends 301, and fixing the sheet-shaped spring piece 3 on the limiting clamping columns 102 of the mounting base 1 through the spring piece mounting ends 301, and providing a restoring force and a balance moment for the optical lens 7 when the sheet-shaped spring piece 3 vibrates;

[0032] Step three: the mounting base 1 is provided with an FPCB circuit board 2, the FPCB circuit board 2 is electrically connected with the coil 4, and finally the shell 8 is sleeved on the mounting base 1.

[0033] Working principle: the optical lens 7 is provided, which has the function of changing the light propagation path, the gasket 6 is placed on the four edges of the optical lens 7, the gasket 6 can function as a magnetic yoke, and then the magnet group 5 is placed outside the gasket 6, the magnet group 5 can be composed of multiple magnets, or a single magnet can be composed by adopting a multi-pole magnetization method; the coil 4 is placed at the corresponding external position of the magnet group 5, when the coil 4 is electrified, the coil 4 and the magnet group 5 jointly generate a thrust force to push the optical lens 7 to vibrate; the sheet-shaped spring piece 3 is also installed on the upper end of the optical lens 7, the middle part of the sheet-shaped spring piece 3 is assembled on the optical lens 7, and the peripheral spring piece mounting ends 301 are fixed on the mounting base 1, the sheet-shaped spring piece 3 can provide a restoring force and a balance moment for the optical lens 7 when the optical lens 7 vibrates, so that the optical lens 7 is quickly stabilized, and the mounting base 1 is also provided with the FPCB circuit board 2, the FPCB circuit board 2 is used for connecting the control signal of the control coil 4, and the shell 8 is provided to protect the internal components.

[0034] The above merely provide examples and descriptions of the present application, and those skilled in the art can make various modifications or supplements to the described specific embodiments or use similar ways to replace, as long as the modifications or supplements do not deviate from the structure of the present application or exceed the scope defined by the claims, and should belong to the protection scope of the present application. In addition, the terms "first" and "second" are only used for description purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features with "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device including a series of steps or units is not limited to the listed steps or units, but can optionally include steps or units not listed, or can optionally include other steps or units inherent to the process, method, product or device.

Claims

1. An optical motor for precisely controlling the deflection angle of a lens, comprising a mounting base (1) and a housing (8), characterized in that: A sheet spring (3) is mounted on the upper end surface of the mounting base (1), an optical lens (7) is mounted on the upper end of the sheet spring (3), a magnet group (5) is mounted on each of the four side surfaces of the optical lens (7), a gasket (6) is mounted between the four magnet groups (5) and the optical lens (7), a coil (4) is mounted on a side of the magnet group (5) away from the gasket (6), and the optical lens (7), the magnet group (5), and the coil (4) are mounted in a housing (8); The upper surface of the mounting base (1) is provided with four limiting clamping columns (102), the middle portion of the mounting base (1) is provided with a mounting groove (101), four flat corners are provided at the four top corners of the mounting groove (101), and the four limiting clamping columns (102) are respectively installed between the four flat corners of the mounting groove (101) and the four top corners of the mounting base (1); The four top corners of the leaf spring (3) are each provided with a leaf spring mounting end (301), and a mounting hole is provided in the middle of the four leaf spring mounting ends (301), and the leaf spring (3) is embedded and mounted in the limiting clamping column (102) through the mounting holes on the leaf spring mounting ends (301); A lens slot (802) is provided in the middle of the housing (8), and card slots are provided at the four top corners of the housing (8), into which the limiting card columns (102) are embedded. Two fixing cards (801) are provided at the lower ends of the four side surfaces of the housing (8).

2. The optical motor for precisely controlling the lens deflection angle according to claim 1, characterized in that: The magnet group (5) is composed of N magnets, and N is greater than or equal to the number of coils (4) and is an integer multiple of the number of coils (4).

3. The optical motor for precisely controlling the lens deflection angle according to claim 1, characterized in that: The shape of the optical lens (7) is consistent with the shape of the mounting groove (101).

4. The optical motor for precisely controlling the lens deflection angle according to claim 1, characterized in that: The assembly steps of the optical motor are as follows: Step 1: Place gaskets (6) on the four sides of the optical lens (7), then place a magnet group (5) outside the gasket (6), and place a coil (4) on the side of the magnet group (5) away from the gasket (6); Step 2: Install a sheet spring (3) on the upper end of the optical lens (7), assemble the middle part of the sheet spring (3) on the optical lens (7), and provide a spring mounting end (301) at each of the four top corners of the sheet spring (3). The sheet spring (3) is fixed to the limit clamping column (102) on the mounting base (1) through the spring mounting end (301); Step 3: The FPCB circuit board (2) is installed on the mounting base (1), the FPCB circuit board (2) is electrically connected to the coil (4), and finally the housing (8) is mounted on the mounting base (1).

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