CN213544914U

CN213544914U - Light source system and light filtering device

Info

Publication number: CN213544914U
Application number: CN202022632773.5U
Authority: CN
Inventors: 张新云; 庞芝亮; 王天民; 陈鲁
Original assignee: Shenzhen Zhongke Feice Technology Co Ltd
Current assignee: Skyverse Ltd; Shenzhen Zhongke Feice Technology Co Ltd
Priority date: 2020-11-13
Filing date: 2020-11-13
Publication date: 2021-06-25
Anticipated expiration: 2030-11-13

Abstract

The utility model discloses a light source system and filter equipment, wherein, this filter equipment includes driving motor and a plurality of filter wheel, each the filter wheel all is equipped with along circumference interval distribution's a plurality of light filters, driving motor and each the equal transmission of filter wheel is connected, is used for ordering about each the filter wheel carries out synchronous rotation. The filter device can drive the plurality of filter wheels to synchronously rotate only through one driving motor, has a simpler structure and high compactness, and is favorable for reducing the cost.

Description

Light source system and light filtering device

Technical Field

The utility model relates to an optical detection technical field, concretely relates to light source system and filter equipment.

Background

At present, in the optical detection industry, optical imaging detection of detection equipment cannot perform selective imaging on light rays in a specific spectral band, so that a filter wheel structure needs to be arranged in a light source system, and when the optical imaging detection equipment is used, different spectral bands can be imaged respectively by switching different filters. However, most of the existing filter wheels are purchased as a set, and each filter wheel is provided with an independent driving part.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a light source system and filter, wherein, this filter's simple structure, the compactness is high.

In order to solve the technical problem, the utility model provides a light filtering device, including drive unit and a plurality of filter wheel, each the filter wheel all is equipped with along circumference interval distribution's a plurality of light filters, drive unit and each the equal transmission of filter wheel is connected for order about each the filter wheel carries out synchronous rotation.

The filter device can drive the plurality of filter wheels to synchronously rotate only through one driving unit, has a simpler structure and high compactness, and is favorable for reducing the cost.

Optionally, the optical filter device further comprises a base, each filter wheel is rotatably mounted on the base, and the base is provided with light through holes matched with the number and positions of the filter wheels.

Optionally, the driving unit is installed on the base body, and the driving unit includes a driving motor and a first transmission portion, and the driving motor drives each filter wheel to perform synchronous motion through the first transmission portion.

Optionally, the outer edge of each filter wheel is provided with a second transmission part, and the first transmission part is in transmission connection with each second transmission part; or each filter wheel is coaxially provided with a third transmission part capable of synchronously rotating with the filter wheel, and the first transmission part is in transmission connection with each third transmission part.

Optionally, the central axis of the rotating shaft of the first transmission part is parallel to the central axis of the rotating shaft of the second transmission part.

Optionally, the first transmission part and each second transmission part are in tooth meshing transmission, belt transmission or chain transmission.

Optionally, the driving unit further comprises a mounting bracket, the mounting bracket is mounted on the base body, and the driving motor is fixed through the mounting bracket.

Optionally, the transmission device further comprises a fourth transmission part and a fifth transmission part, the fourth transmission part and the fifth transmission part are connected through an intermediate transmission shaft, one of the fourth transmission part and the fifth transmission part is in transmission connection with the first transmission part, and the other of the fourth transmission part and the fifth transmission part is in transmission connection with each of the third transmission parts.

Optionally, the base frame is installed in the base body, the base frame includes a supporting plate and a plurality of supporting columns, the supporting plate passes through the supporting columns are installed in the base body, the supporting plate is provided with a first transmission bearing, the intermediate transmission shaft penetrates through the first transmission bearing, the driving motor is installed in the supporting plate, the central axis of the rotating shaft of the driving motor is parallel to the supporting plate, the central axis of the intermediate transmission shaft is perpendicular to the supporting plate, the first transmission part is a worm, the fourth transmission part is a turbine, and the first transmission part is meshed with the fourth transmission part.

Optionally, one of the fourth transmission part and the fifth transmission part and the first transmission part are in tooth meshing transmission, belt transmission or chain transmission, and the other of the fourth transmission part and the fifth transmission part and each of the third transmission parts are in tooth meshing transmission, belt transmission or chain transmission.

Optionally, the intermediate drive shaft is also rotatably connected to the base body.

Optionally, the base body includes a base box and a base cover, the base cover has an opening on one side, the base cover can block the opening and enclose with the base box to form an installation cavity, each filter wheel is disposed in the installation cavity, and the bottom plate of the base box and the base cover are both provided with the light through hole.

The utility model also provides a light source system, including light source and filter, filter is foretell filter, the light source with filter one-to-one sets up.

Since the above-mentioned filtering device has the technical effects, the light source system having the filtering device also has similar technical effects, and therefore, the detailed description thereof is omitted here.

Drawings

Fig. 1 is a schematic structural diagram of a first embodiment of a light filtering device provided in the present invention;

FIG. 2 is a cross-sectional view of FIG. 1;

fig. 3 is a schematic structural diagram of a second embodiment of the optical filtering apparatus provided in the present invention;

FIG. 4 is a cross-sectional view of FIG. 3;

FIG. 5 is a schematic view of the structure of FIG. 3 with the base and pedestal removed;

fig. 6 is a schematic structural diagram of a specific embodiment of the light source system provided in the present invention.

The reference numerals in fig. 1-6 are illustrated as follows:

1, a base body, 11 base boxes, 111 light through holes, 12 base covers and 13 installation cavities;

2, driving a motor, 21 a rotating shaft, 22 a first transmission part and 23 a motor mounting rack;

3, a filter wheel, a 31 filter, a 32 second transmission part and a 33 third transmission part;

4 base frames, 41 supporting plates and 42 supporting columns;

5, an intermediate transmission shaft, 51, a fourth transmission part and 52, a fifth transmission part;

6 light source.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.

As used herein, the term "plurality" refers to an indefinite plurality, typically two or more; and when the term "plurality" is used to indicate a quantity of a particular element, it does not indicate a quantitative relationship between such elements.

The terms "first," "second," and the like, herein, are used for convenience only to describe two or more structures or components that are identical or similar in structure and/or function, and do not denote any quantitative relationship between the components.

Referring to fig. 1 to 5, fig. 1 is a schematic structural diagram of an embodiment of a light filtering device provided by the present invention, fig. 2 is a cross-sectional diagram of fig. 1, fig. 3 is a schematic structural diagram of another embodiment of a light filtering device provided by the present invention, fig. 4 is a cross-sectional diagram of fig. 3, and fig. 5 is a schematic structural diagram of fig. 3 with a base and a base frame removed.

As shown in fig. 1 and fig. 3, the utility model provides a light filtering device, including drive unit and a plurality of filter wheel 3, each filter wheel 3 all is equipped with along a plurality of filters 31 of circumference interval distribution, and drive unit is connected with the equal transmission of each filter wheel 3 for order about each filter wheel 3 and carry out synchronous rotation.

Be different from the background art, the utility model provides a filter equipment only can drive a plurality of filter wheels 3 through a drive unit and carry out synchronous rotation, and the structure is more simple, and the compactness is high, still is favorable to reduce cost.

In a specific embodiment, the display device may further include a base 1, each of the aforementioned filter wheels 3 is rotatably mounted on the base 1, and the base 1 may be provided with light passing holes 111 matching the number and positions of the filter wheels 3.

The matching means that the positions of the light-passing holes 111 can correspond to the filters 31 of the filter wheel 3, so that the filters 31 on the filter wheel 3 can rotate to be coaxially arranged with the corresponding light-passing holes 111 when the filter wheel 3 rotates; the number of the light-passing holes 111 may be the same as that of the filter wheel 3, or may be twice that of the filter wheel 3, as shown in fig. 2 and 4, when the light-passing holes 111 are provided on both axial sides of the filter wheel 3, the number of the light-passing holes 111 may be twice that of the filter wheel 3, and the two light-passing holes 111 corresponding to both axial sides are coaxially disposed.

The driving unit may include a driving motor 2 and a first transmission portion 22, and the driving motor 2 can drive each filter wheel 3 to rotate synchronously through the first transmission portion 22.

In a first scheme, as shown in fig. 1 and fig. 2, the driving motor 2 may be mounted on the base 1, and the specific mounting manner may be that the driving motor 2 is fixed by a motor mounting bracket 23, the rotating shaft 21 of the driving motor 2 may be provided with the first transmission portion 22, the outer edge of each filter wheel 3 may be provided with a second transmission portion 32, and the first transmission portion 22 and each second transmission portion 32 may be in transmission connection. With such an arrangement, the driving force output by the driving motor 2 through the first transmission portion 22 can finally directly act on each filter wheel 3 to drive each filter wheel 3 to rotate.

The first transmission part 22 and each second transmission part 32 may transmit directly or indirectly, and may be determined according to actual use requirements.

Taking the direct transmission scheme as an example, a gear engagement transmission, a belt transmission or a chain transmission may be adopted between the first transmission portion 22 and each second transmission portion 32, and at this time, the rotation axis of the first transmission portion 22 may be parallel to the rotation axis of each second transmission portion 32. Preferably, in the embodiment of fig. 2, the first transmission portion 22 may be a gear, the second transmission portion 32 may be a ring gear, and the first transmission portion 22 can be engaged with each second transmission portion 32, with this structure, each filter wheel 3 may be substantially in the same plane, and the installation space is small, and the structure is more compact; the ring gear (second transmission portion 32) may be formed by machining the outer edge of the filter wheel 3, or may be a separately manufactured component, and then may be fixedly attached to the filter wheel 3 by a process such as welding.

In a second scheme, as shown in fig. 3-5, the rotating shaft 21 of the driving motor 2 may be provided with a first transmission portion 22, each filter wheel 3 may be coaxially provided with a third transmission portion 33 capable of rotating synchronously therewith, and the first transmission portion 22 and each third transmission portion 33 may be in transmission connection. With such an arrangement, the driving force output by the driving motor 2 through the first transmission portion 22 can act on each third transmission portion 33 first, and then the third transmission portion 33 can drive the corresponding filter wheel 3 to rotate, the transmission structure can not be directly arranged on the filter wheel 3, so that the influence on the quality of the filter wheel 3 due to the reprocessing of the filter wheel 3 can be avoided.

The first transmission part 22 and each third transmission part 33 may be directly or indirectly transmitted, and may be determined according to actual use requirements. If a direct transmission is used, the transmission form between the first transmission part 22 and each third transmission part 33 can be designed according to the first scheme; if an indirect transmission scheme is adopted, a transmission mechanism can be arranged between the first transmission part 22 and each third transmission part 33.

Specifically, the base frame 4 may be further included, the base frame 4 may be mounted on the base body 1, the base frame 4 may be provided with an intermediate transmission shaft 5, the intermediate transmission shaft 5 may be mounted with a fourth transmission portion 51 and a fifth transmission portion 52 which are arranged at an interval in the axial direction, one of the fourth transmission portion 51 and the fifth transmission portion 52 may be in transmission connection with the first transmission portion 22, and the other of the fourth transmission portion 51 and the fifth transmission portion 52 may be in transmission connection with each of the third transmission portions 33.

For convenience of description, the embodiment of the present invention will be described by taking the scheme that the fourth transmission part 51 is in transmission connection with the first transmission part 22, and the fifth transmission part 52 is in transmission connection with the third transmission part 33 as an example. With the above arrangement, the rotation speed of each filter wheel 3 can be effectively adjusted to meet the use requirement through the cooperation between the first transmission part 22 and the fourth transmission part 51 and the cooperation between the fifth transmission part 52 and the third transmission part 33.

It should be noted that the above-mentioned scheme of providing the intermediate transmission shaft 5, the fourth transmission part 51 and the fifth transmission part 52 to realize indirect transmission is only an exemplary description of the embodiment of the present invention regarding the specific structure of the transmission mechanism, which cannot be taken as a limitation to the implementation range of the optical filtering device provided by the present invention, and the transmission mechanism between the first transmission part 22 and the third transmission part 33 may also adopt other structural forms under the condition of satisfying the function.

The base frame 4 is mainly used for supporting and mounting the driving motor 2 and the intermediate transmission shaft 5, and the structural form of the base frame also has more choices.

Specifically, in the scheme of the drawings, the base frame 4 may include a supporting plate 41 and a plurality of supporting columns 42, the supporting plate 41 may be mounted on the base 1 through the supporting columns 42, and the specific mounting form may be welding, screwing, or the like; the driving motor 2 and the intermediate transmission shaft 5 can be both mounted on the supporting plate 41, and the central axis of the rotating shaft 21 can be parallel to the supporting plate 41, so that the driving motor 2 is mounted on the supporting plate 41 in a 'lying' manner, the mounting contact area between the driving motor 2 and the supporting plate 41 is larger, the rotating shaft 21 does not bear the supporting force for the driving motor 2, the mounting and fixing of the driving motor 2 can be more reliable, and the driving motor 2 can be mounted on the supporting plate 41 through the motor mounting frame 23; the central axis of the intermediate transmission shaft 5 may be perpendicular to the support plate 41, in which case the rotation shaft 21 and the intermediate transmission shaft 5 are substantially perpendicular to each other, in which case the first transmission part 22 may be a worm, the fourth transmission part 51 may be a worm wheel, and the first transmission part 22 and the fourth transmission part 51 may be engaged to transmit power between the crossed shafts.

In addition, a bevel gear can be adopted between the rotating shaft 21 and the middle transmission shaft 5 for transmission, so that the transmission of power between the staggered shafts can be realized; alternatively, the rotating shaft 21 may be arranged in parallel with the intermediate transmission shaft 5, and in this case, the rotating shaft 21 and the intermediate transmission shaft 5 may be driven by a conventional gear, a pulley, a sprocket, or the like.

Similar to the transmission manner between the first transmission part 22 and the second transmission part 32, the transmission schemes of the belt transmission or the chain transmission, etc. may be adopted between the fourth transmission part 51 and the first transmission part 22, and between the fifth transmission part 52 and the third transmission part 33, besides the tooth meshing transmission.

Furthermore, the intermediate transmission shaft 5 can be rotatably connected with the base body 1, and the scheme can be seen in fig. 4. by adopting the structure, the intermediate transmission shaft 5 can have two fixing positions, namely a fixing position with the support plate 41 and a fixing position with the base body 1, so that the stability of the intermediate transmission shaft 5 is higher, and the corresponding transmission reliability can also be higher.

With respect to the optical filter device according to the above embodiments, the following embodiments of the present invention will also describe the structure of the substrate 1 with reference to the drawings.

As shown in fig. 1, 2, 3, and 4, the base 1 may include a base case 11 having an opening on one side and a base cover 12, the base cover 12 may close the opening and enclose the base case 11 to form an installation cavity 13, each of the filter wheels 3 is disposed in the installation cavity 13, and the bottom plate of the base case 11 and the base cover 12 are both provided with a light hole 111. By adopting the scheme, each filter wheel 3 can be positioned in the closed installation cavity 13, so that the filter wheels are not easily interfered by the outside, and the normal work of each filter wheel 3 is more favorably ensured.

With respect to the first solution, as shown in fig. 1 and 2, each filter wheel 3 and the first transmission portion 22 can be located in the installation cavity 13. With regard to the second solution, as shown in fig. 3-5, only the filter wheels 3 are located in the installation cavity 13, the third transmission parts 33 which are coaxially arranged with the filter wheels 3 and can synchronously rotate may be located on the outer side of the substrate 1, and the fifth transmission parts 52 may be located between the support plate 41 and the substrate 1.

In addition to the above-described configuration including mounting cavities 13, base 1 can also be a separate plate-like member to which each filter wheel 3 can be directly mounted, without affecting the fixation and use of filter wheel 3.

In addition, when fixing the shaft member, for example, the shaft member 21 and the base 1 in the first embodiment, the intermediate transmission shaft 5 and the support plate 41 in the second embodiment (the first transmission bearing is provided), the intermediate transmission shaft 5 and the base 1 (the second transmission bearing is provided), and the connection shaft between the filter wheel 3 and the third transmission part 33 and the base 1 may be fixed by a bearing, and the specific type, structure, and the like of these members are not limited herein.

Referring to fig. 6, fig. 6 is a schematic structural diagram of a light source system according to an embodiment of the present invention.

As shown in fig. 6, the present invention also provides a light source system, which includes a light source 6 and a filter device, wherein the filter device may be the filter device according to the above embodiments.

In a specific practice, the number of the light sources 6 may be consistent with that of the filter wheel 3, and the positions of the light sources 6 may correspond to the positions of the light holes 111 arranged on the substrate 1, so that the light emitted by the light sources 6 can irradiate the filters 31 of the filter wheel 3 through the light holes 111; the light-emitting end of the filter wheel 3 (in the drawing, the light-passing hole 111 is arranged on the base cover 12) can be fixed with one end of the optical fiber through a fixing member, so that the light can directly enter the optical fiber after coming out of the filter wheel 3, and finally can reach the position of the detection lens through the optical fiber.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The filtering device is characterized by comprising a driving unit and a plurality of filter wheels (3), wherein the filter wheels (3) are respectively provided with a plurality of optical filters (31) distributed at intervals along the circumferential direction, and the driving unit is in transmission connection with the filter wheels (3) and is used for driving the filter wheels (3) to synchronously rotate.

2. A filter device according to claim 1, further comprising a base (1), each filter wheel (3) being rotatably mounted to the base (1), the base (1) being provided with light transmission holes (111) matching the number and positions of the filter wheels (3).

3. A filter device according to claim 2, wherein the driving unit is mounted to the base (1), the driving unit comprises a driving motor (2) and a first transmission part (22), and the driving motor (2) drives the filter wheels (3) to move synchronously through the first transmission part (22).

4. A filter device according to claim 3, wherein the outer edge of each filter wheel (3) is provided with a second transmission part (32), and the first transmission part (22) is in transmission connection with each second transmission part (32); alternatively, the first and second electrodes may be,

each filter wheel (3) is coaxially provided with a third transmission part (33) capable of synchronously rotating with the filter wheel, and the first transmission part (22) is in transmission connection with each third transmission part (33).

5. A filter device according to claim 4, in which the central axis of the axis of rotation of the first transmission part (22) is parallel to the central axis of the axis of rotation of the second transmission part (32).

6. A filter device according to claim 5, in which the first transmission part (22) and each of the second transmission parts (32) are driven by a toothed engagement, a belt or a chain.

7. A filter device according to claim 4, wherein the drive unit further comprises a mounting bracket (23), the mounting bracket (23) being mounted to the base body (1), the drive motor (2) being fixed by means of the mounting bracket (23).

8. The filter device according to claim 4, further comprising a fourth transmission portion (51) and a fifth transmission portion (52), wherein the fourth transmission portion (51) and the fifth transmission portion (52) are connected by an intermediate transmission shaft (5), one of the fourth transmission portion (51) and the fifth transmission portion (52) is in transmission connection with the first transmission portion (22), and the other of the fourth transmission portion (51) and the fifth transmission portion (52) is in transmission connection with each of the third transmission portions (33).

9. A filter device according to claim 8, further comprising a base frame (4), the base frame (4) is arranged on the base body (1), the base frame (4) comprises a supporting plate (41) and a plurality of supporting columns (42), the supporting plate (41) is mounted to the base body (1) by the supporting column (42), the supporting plate (41) is provided with a first rotating bearing, the middle driving shaft (5) penetrates through the first rotating bearing, the driving motor (2) is arranged on the supporting plate (41), the central axis of the rotating shaft of the driving motor is parallel to the supporting plate (41), the central axis of the middle transmission shaft (5) is vertical to the supporting plate (41), the first transmission part (22) is a worm, the fourth transmission part (51) is a turbine, the first transmission part (22) and the fourth transmission part (51) are engaged.

10. The filter device according to claim 8, wherein one of the fourth transmission portion (51) and the fifth transmission portion (52) is in tooth-meshing transmission, belt transmission, or chain transmission with the first transmission portion (22), and the other of the fourth transmission portion (51) and the fifth transmission portion (52) is in tooth-meshing transmission, belt transmission, or chain transmission with each of the third transmission portions (33).

11. A filter device according to claim 8, in which the intermediate drive shaft (5) is also rotatably connected to the base body (1).

12. A filter device according to any one of claims 2-11, wherein the base body (1) comprises a base housing (11) having an opening on one side and a base cover (12), the base cover (12) is capable of closing the opening and forms a mounting cavity (13) with the base housing (11), each filter wheel (3) is disposed in the mounting cavity (13), and the base plate of the base housing (11) and the base cover (12) are both provided with the light passing hole (111).

13. A light source system comprising a light source (6) and a filter device, characterized in that the filter device is according to any of claims 1-12, and the light source (6) is arranged in a one-to-one correspondence with the filter device.