CN214374220U

CN214374220U - Optical filter turntable device

Info

Publication number: CN214374220U
Application number: CN202120083900.2U
Authority: CN
Inventors: 王忠祥; 陆豪亮; 姚毅
Original assignee: Luster LightTech Co Ltd; Suzhou Lingyunguang Industrial Intelligent Technology Co Ltd
Current assignee: Luster LightTech Co Ltd; Suzhou Lingyunguang Industrial Intelligent Technology Co Ltd
Priority date: 2021-01-13
Filing date: 2021-01-13
Publication date: 2021-10-08
Anticipated expiration: 2031-01-13

Abstract

The utility model belongs to the technical field of the micro LED detects, a light filter carousel device is related to. The optical filter turntable device comprises a camera mounting frame, a turntable and a driving assembly. The camera is installed on the camera installation frame and connected with the lens. The carousel mounting bracket is installed in the camera mounting bracket. The turntable is rotatably arranged on the turntable mounting frame, at least two optical filter mounting positions are distributed on the turntable, and the optical filter mounting positions are used for mounting the optical filter. The driving assembly is configured to drive the turntable to rotate so that a predetermined filter is opposite to the lens. When the light filter needs to be replaced, through the utility model discloses a drive assembly drive carousel is rotatory to make predetermined light filter and camera lens relative can, it is convenient, quick to change the light filter. Even in a narrow replacing space, the optical filter can be conveniently replaced.

Description

Optical filter turntable device

Technical Field

The utility model belongs to the technical field of the micro LED detects, a light filter carousel device is related to.

Background

The MicroLED is the future development direction of the display screen industry. The micro led may be detected using a camera. In order to improve the detection precision, a camera and lens combination with higher resolution can be adopted to detect the micro LED. In such a combination, the length of the lens may be relatively long.

In the detection process, different filters are required for different pictures. Therefore, it is necessary to provide filters of two or more colors. The existing filter is detachably mounted on the lens. When the optical filter needs to be replaced, the optical filter needs to be replaced manually, the process of replacing the optical filter is complex, and the consumed time is long. Because the distance between the existing lens and the carrying platform for placing the micro LED is short, the space for replacing the optical filter is narrow, and the difficulty of manually replacing the optical filter is increased.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a light filter carousel device to solve the problem of changing the light filter difficulty.

To achieve the purpose, the utility model adopts the following technical proposal:

a filter carousel apparatus, comprising:

the camera mounting frame is provided with a camera, and the camera is connected with a lens;

a turntable mount mounted to the camera mount;

the turntable is rotatably arranged on the turntable mounting frame, at least two optical filter mounting positions are distributed on the turntable, and the optical filter mounting positions are used for mounting optical filters;

a driving assembly configured to drive the turntable to rotate so that a predetermined filter is opposite to the lens.

Preferably, in the optical filter carousel device described above, the carousel mounting bracket includes a horizontal plate and a side plate connected to one end of the horizontal plate, the side plate is connected to the camera mounting bracket, and the carousel is mounted on the horizontal plate.

Preferably, in the above filter carousel device, the driving assembly is supported by the horizontal plate.

Preferably, in the optical filter carousel device described above, a bottom end of the camera mount abuts against the horizontal plate.

Preferably, in the optical filter carousel apparatus described above, the side plate is connected to a side of the camera mounting bracket, and the side plate is a triangular plate.

Preferably, in the above-mentioned optical filter carousel apparatus, the camera mounting bracket has an accommodating space for accommodating at least part of the driving assembly.

Preferably, in the above-described filter carousel device, the accommodating space is formed by a bottom surface of the camera mount being recessed.

Preferably, in the optical filter turntable device, the turntable mounting frame is further provided with a position sensor, and the edge of the turntable is provided with a positioning notch.

Preferably, in the above-mentioned optical filter carousel device, a position at which the positioning notch triggers the position sensor is defined as an origin position, and the driving assembly is configured to be capable of driving the carousel to rotate so that the positioning notch returns to the origin position.

Preferably, in the optical filter rotating disk device, the optical filter rotating disk device further includes a main support and a stage, the camera mounting bracket is movably or rotatably mounted on the main support, the main support is mounted on the stage, and the rotating disk is opposite to the stage.

The utility model discloses a light filter carousel device's beneficial effect lies in: when the optical filter needs to be replaced, the driving assembly drives the rotary disc to rotate, so that the preset optical filter is opposite to the lens, and the optical filter is convenient and quick to replace. Even in a narrow replacing space, the optical filter can be conveniently replaced.

Drawings

Fig. 1 is an overall perspective view of a light filter turntable device according to an embodiment of the present invention;

fig. 2 is an assembled perspective view of a turntable mounting bracket, a turntable and a driving assembly of the optical filter turntable device according to the embodiment of the present invention;

fig. 3 is an exploded view of fig. 2.

The component names and designations in the drawings are as follows:

camera mounting bracket 10, accommodating space 11, turntable mounting bracket 20, horizontal plate 21, side plate 22, turntable 30, filter mounting position 31, positioning notch 32, driving assembly 40, filter 50, camera 61, lens 62, position sensor 70, general bracket 80 and stage 90.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

As shown in fig. 1, the present embodiment discloses a filter carousel device. The filter carousel includes a camera mount 10, a main support 80, and a stage 90. The camera mounting bracket 10 is provided with a camera 61, and the camera 61 is connected with a lens 62. The camera mounting 10 is movably or rotatably mounted to a main frame 80, and the main frame 80 is mounted to a stage 90. Specifically, the carrier 90 is horizontally arranged and used for placing the micro led to be detected. The main support 80 is perpendicular to the carrier 90 and has a bottom end connected to the top surface of the carrier 90. The camera mounting 10 is mounted on the side of the main support 80 facing the micro leds, and the position of the camera mounting 10 is adjustable relative to the main support 80. The position of the camera 61 and the lens 62 is adjusted by adjusting the position of the camera mounting bracket 10 to facilitate the detection of the micro led.

The filter carousel apparatus of this embodiment further comprises a carousel mount 20, a carousel 30, and a drive assembly 40. The turntable mount 20 is mounted to the camera mount 10. The turntable 30 is rotatably mounted on the turntable mounting frame 20, at least two filter mounting positions 31 are distributed on the turntable 30, and the filter mounting positions 31 are used for mounting the filters 50. The driving assembly 40 is configured to drive the turntable 30 to rotate so that a predetermined filter 50 is opposite to the lens 62. The turntable 30 is opposite the carrier 90.

When the optical filter 50 needs to be replaced, the driving assembly 40 drives the turntable 30 to rotate, so that the predetermined optical filter 50 is opposite to the lens 62, and the optical filter 50 is replaced conveniently and quickly. The filter 50 can be easily replaced even in a narrow replacement space.

The drive assembly 40 of the present embodiment includes a motor and a speed reducer. The motor drives the turntable 30 to rotate through the speed reducer.

The number of the filters 50 in this embodiment may be three, and the three filters 50 are red, blue and green filters, respectively. When the red filter needs to be replaced with the green filter, the motor drives the turntable 30 to rotate, so that the green filter is opposite to the lens 62. The number of the filter mounting positions 31 in this embodiment may be four, and the four filter mounting positions 31 are uniformly distributed in the circumferential direction. At this time, one filter mounting position 31 is in an empty state.

In other alternative embodiments, the number of filters 50 may be two, four, etc. Accordingly, the number of filter mounting positions 31 is equal to or greater than the number of filters 50.

The turntable 30 of the present embodiment has a circular disk-like structure. In other alternative embodiments, the turntable 30 may be rectangular, diamond-shaped, or even an irregularly shaped structure.

As shown in fig. 2 and 3, in the present embodiment, the turntable mounting bracket 20 includes a horizontal plate 21 and a side plate 22 connected to one end of the horizontal plate 21, the side plate 22 is connected to the camera mounting bracket 10, and the turntable 30 is mounted on the horizontal plate 21. Specifically, both ends of the horizontal plate 21 are connected with side plates 22. The side plate 22 is a plate with a triangular structure, and the width of the side plate 22 gradually decreases from low to high. The top end of side plate 22 still has a certain width to prevent the formation of a sharp end.

The side plate 22 has a plurality of mounting holes arranged vertically, and the side plate 22 is connected to the side of the camera mounting frame 10 by a plurality of screws, so as to improve the reliability of the connection between the turntable mounting frame 20 and the camera mounting frame 10. Because the turntable mount 20 and the camera mount 10 are fixedly connected as a whole, the movement of the camera mount 10 will drive the turntable mount 20 to move synchronously. That is, the turntable mounting 20 of the present embodiment is moved in synchronization with the camera 61 and the lens 62 so that the lens 62 can be always aligned with the filter 50.

In this embodiment, the motor and the speed reducer are supported by the horizontal plate 21 and are located in the space between the two side plates 22. Specifically, the horizontal plate 21 has a through hole, and an output shaft of the speed reducer passes through the through hole to be fixedly connected with the center of the turntable 30. For example, the output shaft of the speed reducer may be fixedly connected to the center of the turntable 30 by a connector such as a screw.

As shown in fig. 1, in this embodiment, the bottom end of the camera mounting frame 10 abuts against the horizontal plate 21, so that the occupied space of the entire optical filter rotating disc device can be reduced, and the structure of the entire optical filter rotating disc device is relatively compact. Specifically, the width of the camera mount 10 is substantially the same as the distance between the two side plates 22, and the bottom of the camera mount 10 is located between the two side plates 22.

In this embodiment, the camera mounting bracket 10 has an accommodating space 11, and the accommodating space 11 is used for accommodating at least a part of the driving assembly 40, so that the occupied space of the whole optical filter turntable device can be reduced, and the structure of the whole optical filter turntable device is relatively compact. Further, the accommodating space 11 is formed by recessing the bottom surface of the camera mounting bracket 10, which has an advantage of easy processing.

In this embodiment, the turntable mounting bracket 20 is further provided with a position sensor 70, and the edge of the turntable 30 is provided with a positioning notch 32. The position sensor 70 is used to sense the positioning notch 32. When the positioning notch 32 is rotated to the position sensor 70, the position sensor 70 is triggered. The position where the positioning notch 32 triggers the position sensor 70 is defined as the origin position.

In this embodiment, the driving assembly 40 is configured to drive the turntable 30 to rotate, so that the positioning notch 32 returns to the original position.

The driving assembly 40 of the present embodiment drives the turntable 30 to rotate 90 ° so that the red filter is opposite to the lens 62. The turntable 30 is driven to rotate by 180 ° so that the blue filter is opposed to the lens 62. The turntable 30 is driven to rotate 270 ° so that the green filter is opposed to the lens 62. The rotation of one cycle ends. The driving assembly 40 drives the turntable 30 to rotate at a low speed until the positioning notch 32 returns to the original position. Then, the next cycle of driving is performed. Each time a period of rotation is completed, the positioning notch 32 returns to the original position, thereby facilitating the improvement of the position accuracy between the lens 62 and the optical filter 50 and reducing the accumulated error generated in the rotation process.

In other alternative embodiments, the positioning notch 32 may be returned to the home position after two or even three cycles of rotation of the turntable 30.

In other alternative embodiments, the number of filters 50 is two, and the turntable 30 is rotated at an angle such that the lens 62 is opposite to one of the filters 50. The turntable continues to rotate in the same direction for an angle so that the lens 62 is opposite to the other filter 50, and one period of rotation is completed. The driving assembly 40 drives the turntable 30 to rotate at a low speed until the positioning notch 32 returns to the original position. Then, the next cycle of driving is performed. When the number of the optical filters 50 is other values, similarly, the turntable 30 rotates along the same direction, and completes one period of rotation when passing through all the optical filters 50 in sequence.

When the positioning notch 32 is located at the origin position, one of the filters 50 is opposite to the lens 62. Therefore, the pulse required by the rotation of the motor and the speed reducer for 360 degrees can be used for calculating the pulse required by each optical filter 50 relative to the lens 62, and further controlling the whole movement process of the turntable 30.

The optical filter turntable device of the embodiment can also be used for detecting other products such as LEDs, display screens and the like.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, rearrangements and substitutions will now occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A filter carousel apparatus, comprising:

the camera mounting rack (10), wherein a camera (61) is mounted on the camera mounting rack (10), and the camera (61) is connected with a lens (62);

a carousel mount (20), the carousel mount (20) being mounted to the camera mount (10);

the rotary table (30) is rotatably mounted on the rotary table mounting frame (20), at least two optical filter mounting positions (31) are distributed on the rotary table (30), and the optical filter mounting positions (31) are used for mounting the optical filter (50);

a driving assembly (40), wherein the driving assembly (40) is configured to drive the turntable (30) to rotate so that the predetermined optical filter (50) is opposite to the lens (62).

2. The filter carousel device of claim 1, wherein the carousel mount (20) comprises a horizontal plate (21) and a side plate (22) connected to one end of the horizontal plate (21), the side plate (22) being connected to the camera mount (10), the carousel (30) being mounted to the horizontal plate (21).

3. The filter carousel of claim 2, wherein the drive assembly (40) is carried by the horizontal plate (21).

4. The filter carousel of claim 2, wherein a bottom end of the camera mount (10) abuts the horizontal plate (21).

5. The filter carousel of claim 4, wherein the side plates (22) are connected to sides of the camera mount (10), and the side plates (22) are triangular plates.

6. The filter carousel of claim 1, wherein the camera mount (10) has an accommodation space (11), the accommodation space (11) being configured to accommodate at least part of the drive assembly (40).

7. The filter carousel device of claim 6, wherein the receiving space (11) is formed by a depression in a bottom surface of the camera mount (10).

8. The filter carousel device of claim 1, wherein the carousel mount (20) further mounts a position sensor (70), and the edge of the carousel (30) is provided with a positioning notch (32).

9. The filter carousel device of claim 8, wherein a position at which the positioning notch (32) triggers the position sensor (70) is defined as a home position, and the drive assembly (40) is configured to drive the carousel (30) to rotate back to bring the positioning notch (32) back to the home position.

10. The filter carousel of any of claims 1-9, further comprising a main support (80) and a stage (90), wherein the camera mount (10) is movably or rotatably mounted to the main support (80), wherein the main support (80) is mounted to the stage (90), and wherein the carousel (30) is opposite the stage (90).