CN111505891A

CN111505891A - Micro module and optical machine for deflecting optical filter

Info

Publication number: CN111505891A
Application number: CN202010549675.7A
Authority: CN
Inventors: 林海荣; 杨光; 欧埒君
Original assignee: Taizhou Shenglin Photoelectric Technology Co ltd
Current assignee: Taizhou Shenglin Photoelectric Technology Co ltd
Priority date: 2020-06-16
Filing date: 2020-06-16
Publication date: 2020-08-07

Abstract

The invention is suitable for the technical field of projection equipment, and provides a micro module and an optical machine for deflecting an optical filter. The micro module consists of an elastic piece, an optical filter, a coil, a support, a magnet, a fixing frame and an FPC (flexible printed circuit) soft board, when light passes through the optical filter on the micro module, the optical filter is regularly deflected in corresponding amplitude and direction by controlling the energization mode of the coil and the polarity of the magnet, and the effect of improving the image quality and the image brightness is achieved. The micro module enables a plurality of magnets to share one coil, so that the product structure is simplified, and the product space is saved; the side surface of the elastic part is fixedly designed, so that the overall dimension of the module is basically close to the peripheral dimension of the space occupied by the elastic part; the asymmetric structural design of coil and support had both satisfied the miniaturized design demand of product, still can effectively realize the assembly and prevent slow-witted.

Description

Micro module and optical machine for deflecting optical filter

Technical Field

The invention belongs to the technical field of projection equipment, and particularly relates to a micro module and an optical machine for deflecting an optical filter.

Background

The projector is a device which irradiates light onto a display element of an image to generate an image, and then projects the image onto a curtain through a lens, and the projector can be connected with a computer, a VCD, a DVD, a BD, a game machine, a DV and the like through different interfaces to play corresponding video signals.

Along with the development of the society, the demands of the market on miniaturization and portability of the projector are more obvious, and the modules in the market are large in size at present, so that the development of the projector product towards the miniaturization and portability direction is not facilitated; in addition, the conventional projector has the problems of uneven image quality and low brightness.

Disclosure of Invention

It is an object of the embodiments of the present invention to provide a micro module for deflecting an optical filter, which is to solve the above-mentioned problems in the background art.

The embodiment of the present invention is implemented as follows, a micro module for deflecting an optical filter includes an optical filter, a coil, a bracket, a fixing frame and a Flexible Printed Circuit (FPC), wherein the optical filter is disposed on the coil, the coil is disposed on the bracket, the bracket is disposed on the fixing frame, the Flexible Printed Circuit (FPC) is electrically connected to the coil, and the micro module further includes:

a plurality of magnets arranged symmetrically: a plurality of pieces of the magnet are symmetrically arranged around the coil; when the coil is energized, the plurality of magnets deflect the coil, thereby deflecting the optical filter;

and the elastic piece is used for restoring the deflected coil to the original position so as to restore the optical filter to the original position.

Preferably, the magnet is provided with four pieces; the polarity of the inner sides of two adjacent pieces of the magnets is consistent with the polarity of the outer sides of the other two pieces of the magnets.

Preferably, the coil is in a parallelogram shape with two chamfers, the two chamfers are arranged diagonally, and the two chamfers are different in size.

Preferably, the bracket is in a parallelogram shape with two chamfers, the two chamfers are arranged diagonally, and the two chamfers are different in size; the sizes of the two chamfers of the bracket are respectively the same as the sizes of the two chamfers of the coil; the coil is arranged on the bracket through the clamping groove.

Preferably, the elastic part is provided with two parts, the two parts are respectively arranged on the two chamfers of the coil, and the side connecting lines of the two parts do not coincide with the diagonal line of the coil.

Preferably, a side connecting line of the elastic element forms an angle of 45 degrees with a geometric cross center line of the optical filter.

Preferably, the elastic part is provided with two through holes; one end of the elastic piece close to the optical filter is connected with the optical filter, the coil and the bracket through one through hole; one end of the elastic piece, which is far away from the optical filter piece, is connected with the magnet, the fixed frame and the FPC soft board through another through hole.

Another objective of an embodiment of the present invention is to provide an optical machine, which includes a light source, a chip, a prism, and a lens, and is characterized by further including any one of the above micro modules.

The embodiment of the invention provides a micro module for deflecting an optical filter, which consists of an elastic piece, the optical filter, a coil, a bracket, a magnet, a fixed frame and an FPC soft board. When light passes through the optical filter on the micro module, the optical filter is regularly deflected in corresponding amplitude and direction by controlling the energization mode of the coil and the polarity of the magnet, so that the effects of improving the image quality and the image brightness are achieved. The micro module enables a plurality of magnets to share one coil, so that the product structure is simplified, and the product space is saved; the side surface of the elastic part is fixedly designed, so that the overall dimension of the module is basically close to the peripheral dimension of the space occupied by the elastic part; the asymmetric structural design of coil and support had both satisfied the miniaturized design demand of product, still can effectively realize the assembly and prevent slow-witted.

Drawings

FIG. 1 is a schematic structural diagram of a micro module for deflecting an optical filter according to an embodiment of the present invention;

FIG. 2 is an exploded view of a micro module for deflecting an optical filter according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of the position of a magnet provided by an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a coil according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a bracket according to an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of an elastic member according to an embodiment of the present invention;

fig. 7 is a schematic view of a side connecting line of an elastic member according to an embodiment of the invention.

In the drawings: 1. a screw; 2. an elastic member; 3. an optical filter; 4. a coil; 5. a support; 6. a magnet; 7. a fixed mount; 8. FPC soft board.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Specific implementations of the present invention are described in detail below with reference to specific embodiments.

As shown in fig. 1 and 2, a schematic structural view and an exploded schematic view of a micro module for deflecting an optical filter according to an embodiment of the present invention include an optical filter 3, a coil 4, a bracket 5, a fixing frame 7, and an FPC (Flexible Printed Circuit) Flexible board 8, where the Flexible Printed Circuit is called as "FPC" in chinese, the optical filter 3 is disposed on the coil 4, the coil 4 is disposed on the bracket 5, the bracket 5 is disposed on the fixing frame 7, and the FPC Flexible board 8 is electrically connected to the coil 4, and the micro module further includes:

symmetrically arranged pieces of magnets 6: a plurality of pieces of the magnet 6 are symmetrically arranged around the coil 4; when the coil 4 is energized, the plurality of magnets 6 deflect the coil 4 and thus the optical filter 3;

and the elastic member 2 is used for restoring the deflected coil 4 to the original position, thereby restoring the optical filter 3 to the original position.

In practical application, different FPC flexible boards 8 can be matched according to the requirements of different customers. When the micro module is electrified, the coil 4 on the bracket 5 and the magnet 6 on the fixed frame 7 act to deflect, and simultaneously, the bracket 5 and the optical filter 3 on the bracket 5 are driven to deflect; when light passes through the optical filter 3, the optical filter 3 regularly deflects in corresponding amplitude and direction by controlling the power-on mode of the coil 4 and the polarity of the magnet 6, so that the effects of improving image quality and image brightness are achieved; after the micro module is powered off, the coil 4, the bracket 5 and the optical filter 3 are returned to the positions before the power is on through the elastic reset function of the elastic sheet 2. In addition, the micro module enables a plurality of magnets 6 to share one coil 4, so that the structure of a product is simplified, and the space of the product is saved; the elastic member 2 needs to select a corresponding material according to the polarization angle index of the optical filter 3 and the voltage of the micro module by the customer and by combining the design structure of the elastic member 2.

As shown in fig. 3, as a preferred embodiment of the present invention, the magnet 6 is provided in four pieces; the polarity of the inner sides of two adjacent pieces of the magnets 6 is consistent with the polarity of the outer sides of the other two pieces of the magnets 6.

Specifically, the number of magnets adopted by the four magnets 6 is the least while the best effect is achieved, and the scheme is the optimal scheme; two pieces of magnets 6 having the same polarity are arranged symmetrically with the other two pieces of magnets 6 with respect to the center of the coil 4.

As shown in fig. 4, as a preferred embodiment of the present invention, the coil 4 has a parallelogram shape with two chamfers, the two chamfers are not connected, and the two chamfers have different sizes.

Specifically, the coil 4 adopts an asymmetric structure, so that the product can meet the requirement of miniaturization. In the figure, a is the first chamfer on the coil 4 and b is the second chamfer, the two chamfers being of different sizes.

As shown in fig. 5, as a preferred embodiment of the present invention, the bracket 5 has a parallelogram shape with two chamfers, the two chamfers are arranged diagonally, and the two chamfers have different sizes; the sizes of the two chamfers of the bracket 5 are respectively the same as the sizes of the two chamfers of the coil 4; the coil is characterized in that a clamping groove is formed in the support 5, and the coil 4 is arranged on the support 5 through the clamping groove.

Specifically, when the chamfer of the coil 4 is not matched with the chamfer of the bracket 5, the coil 4 cannot be installed on the bracket 5, and the fool-proof effect is achieved. In the figure c is the first chamfer on the holder 5 and d is the second chamfer, the two chamfers being of different size. The chamfer c on the bracket 5 is consistent with the chamfer a on the coil 4, and the chamfer d is consistent with the chamfer b.

As shown in fig. 1 and 6, as a preferred embodiment of the present invention, the elastic member 2 is provided with two pieces, the two pieces of elastic member 2 are respectively disposed on two chamfers of the coil 4, and a side connecting line of the two pieces of elastic member 2 is not overlapped with a diagonal line of the coil 4.

Specifically, set up two elastic component 2 respectively on two chamfers of coil 4 for miniature module can only rotate on fixed axis direction, has both satisfied the function of product, has also carried out the miniaturization to the holistic size of product.

As shown in fig. 7, as a preferred embodiment of the present invention, the connecting lines of the side edges of the elastic member 2 are at an angle of 45 ° with respect to the geometric cross center line of the optical filter 3.

Specifically, the direction of the side connecting line of the elastic member 2 coincides with the moving direction required by the optical pixel point, (a non-45 ° angle structure may cause the image quality of the projection imaging picture to be rough and the visual sensation to be poor), and in fig. 7, t is 45 °. The position of the connecting line and the angle of the deflection shaft are designed, so that the optical imaging requirement is met, the image quality of a projection picture is smooth, and meanwhile, the miniaturization structure design of a product is met.

As shown in fig. 1, as a preferred embodiment of the present invention, two through holes are formed on the elastic member 2; one end of the elastic element 2 close to the optical filter 3 is connected with the optical filter 3, the coil 4 and the bracket 5 through one piece of through hole; one end of the elastic element 2, which is far away from the optical filter 3, is connected with the magnet 6, the fixed frame 7 and the FPC soft board 8 through another through hole.

Specifically, the through-hole is the screw hole, optics filter 3 coil 4 support 5 is called first assemblage, magnet 6 the mount 7 FPC soft board 8 is called the second assemblage, and the both ends of elastic component 2 are connected with first assemblage and second assemblage respectively through two screws 1. After the product is electrified, the first assembly carries out regular polarization along the direction of the side connecting line of the elastic element 2.

An embodiment of the present invention further provides an optical machine, which includes a light source, a chip, a prism, and a lens, and the optical machine further includes any one of the above-mentioned micro modules.

Specifically, the micro module adopts any one of the micro modules of the above embodiments, and the optical machine can satisfy the imaging effect of 720P. During operation, the light that the light source sent transmits the prism after handling through the chip, and the prism refracts light, and light after the prism refraction is through miniature module, and miniature module makes light take place the regularity motion, takes place the regularity motion light through the camera lens projection on the first-class display screen on curtain or the wall that needs the projection.

To sum up, the micro module is composed of a screw 1, an elastic piece 2, an optical filter 3, a coil 4, a bracket 5, a magnet 6, a fixing frame 7 and an FPC soft board 8. When light passes through the optical filter 3 on the micro module, the optical filter 3 is regularly deflected in corresponding amplitude and direction by controlling the power-on mode of the coil 4 and the polarity of the magnet 6, so that the effects of improving the image quality and the image brightness are achieved. The micro module has the advantages that the four magnets 6 share one coil 4, so that the product structure is simplified, and the product space is saved; the side surface of the elastic part 2 is fixedly designed, so that the overall dimension of the module is basically close to the peripheral dimension of the space occupied by the elastic part 2; the asymmetric structural design of the coil 4 and the bracket 5 meets the design requirement of product miniaturization, and the fool-proof assembly can be effectively realized.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a make miniature module of optics filter deflection, includes optics filter, coil, support, mount and FPC soft board, the optics filter sets up on the coil, the coil sets up on the support, the support sets up on the mount, FPC soft board with coil electric connection, its characterized in that, miniature module still includes:

2. The micromodule for deflecting the optical filter according to claim 1, wherein the magnet is provided in four pieces; the polarity of the inner sides of two adjacent pieces of the magnets is consistent with the polarity of the outer sides of the other two pieces of the magnets.

3. The micromodule for deflecting the optical filter according to claim 1, wherein the coil has a parallelogram shape with two chamfers, wherein the two chamfers are diagonally disposed and wherein the two chamfers have different sizes.

4. The micromodule for deflecting an optical filter according to claim 3, wherein said support has a parallelogram shape with two chamfers, said chamfers being disposed diagonally and said chamfers being of different sizes; the sizes of the two chamfers of the bracket are respectively the same as the sizes of the two chamfers of the coil; the coil is arranged on the bracket through the clamping groove.

5. The micromodule for deflecting the optical filter according to claim 3, wherein the elastic member is provided in two pieces, the two pieces of elastic member are respectively disposed on two chamfers of the coil, and a connecting line of side edges of the two pieces of elastic member is not overlapped with a diagonal line of the coil.

6. The micromodule for deflecting the optical filter of claim 5, wherein the connecting lines of the sides of the elastic member are at an angle of 45 ° with respect to the geometric cross-shaped centerline of the optical filter.

7. The micromodule for deflecting the optical filter according to claim 1, wherein the resilient member is provided with two through holes; one end of the elastic piece close to the optical filter is connected with the optical filter, the coil and the bracket through one through hole; one end of the elastic piece, which is far away from the optical filter piece, is connected with the magnet, the fixed frame and the FPC soft board through another through hole.

8. An optical machine, comprising a light source, a chip, a prism and a lens, wherein the optical machine further comprises the micro module set according to any one of claims 1 to 7.