CN213934510U

CN213934510U - Image acquisition device for optical machine detection

Info

Publication number: CN213934510U
Application number: CN202023288039.8U
Authority: CN
Inventors: 刘冬华; 曹鸿鹏; 郭健飞; 彭华军
Original assignee: Shenzhen Ned Optics Co Ltd
Current assignee: Shenzhen Ned Optics Co Ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-08-10
Anticipated expiration: 2030-12-30

Abstract

The utility model relates to an image acquisition device for optical machine detection, which comprises an operation platform, a positioning component, an imaging component and an image acquisition component; the positioning assembly and the imaging assembly are sequentially arranged on the operating platform along the direction of an optical axis from light emission to imaging; an adjusting component is arranged on the operating platform; the adjusting assembly drives the positioning assembly to reciprocate on the operating platform; the image acquisition assembly is arranged on the imaging assembly; this scheme of adoption can adjust the position of the ray apparatus that awaits measuring for the optics part of the ray apparatus that awaits measuring can hand over each other with the optics part of formation of image subassembly and the optics part of light source subassembly, makes the image that normal ray apparatus throws on the curtain clearly visible, avoids normal ray apparatus mistake to judge as the ray apparatus that can't use, improves the accuracy nature of ray apparatus testing result.

Description

Image acquisition device for optical machine detection

Technical Field

The utility model relates to a wear the display device field, more specifically say, relate to an image acquisition device for ray apparatus detects.

Background

With the continuous development of electronic devices towards ultra-miniaturization and the development of new computer, micro-electronics, photoelectric devices and communication theory and technology, the novel mode of wearable computing based on human-oriented and man-machine integration has been applied to the fields of military affairs, industry, medical treatment, education, consumption and the like. In a typical wearable computing system architecture, the head mounted display device is a key component.

The most important part of the head-mounted display device is the optical machine. The optical machine guides the video image light emitted by the miniature image display (such as a transmission type or reflection type liquid crystal display, an organic electroluminescent device and a DMD device) to the pupil of a user through an optical technology, realizes virtual and enlarged images in the near-eye range of the user, and provides visual and visible images, videos and character information for the user.

The optical quality of the optics determines the performance of the head-mounted display. Therefore, before the head-mounted display device leaves the factory, the optical machine needs to be detected. In the optical machine detection process, the optical parts among the light source, the optical machine and the imaging assembly need to be mutually connected. However, in the existing optical machine detection process, the positions of the light source, the optical machine and the imaging assembly are all fixed, so that when a normal optical machine is detected, the projected image is blurred due to the fact that the optical machine cannot be adjusted to be handed over to the optical part of the imaging assembly, and then the optical machine cannot be normally used, so that misjudgment is formed, the optical machine detection result is not accurate, and the production burden of an enterprise is increased.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model lies in, to the above-mentioned defect of prior art, provide an image acquisition device for ray apparatus detects.

The utility model provides a technical scheme that its technical problem adopted is:

an image acquisition device for optical machine detection is constructed, and comprises an operation platform, a positioning assembly, an imaging assembly and an image acquisition assembly; the positioning assembly and the imaging assembly are sequentially arranged on the operating platform along the direction of an optical axis from light emission to imaging; an adjusting component is arranged on the operating platform; the adjusting assembly drives the positioning assembly to reciprocate on the operating platform; the image acquisition assembly is disposed on the imaging assembly.

Furthermore, an installation block is arranged on the operation platform; the adjusting component comprises a screw rod, a fixed sleeve and a driving piece; the fixed sleeve is arranged on the mounting block; the screw rod penetrates through the mounting block and the fixing sleeve and is connected with the driving piece.

Further, the driving piece comprises a nut, a movable sleeve and a knob; the screw rod sequentially penetrates through the fixed sleeve, the nut and the movable sleeve and is connected with the knob; the nut is arranged on the fixed sleeve; the movable sleeve is arranged on the fixed sleeve; the knob is connected with the movable sleeve.

Further, the driving member comprises a threaded sleeve and an electric element; the screw rod sequentially penetrates through the fixed sleeve and the threaded sleeve; the threaded sleeve is arranged on the fixed sleeve and can rotate relative to the fixed sleeve; the electric element is connected with the threaded sleeve.

Further, the electric element comprises a motor, a first gear arranged on the threaded sleeve and a second gear arranged on the rotating shaft of the motor; the first gear is in meshed connection with the second gear.

Furthermore, a first groove and a second groove positioned in the first groove are formed in one end, far away from the mounting block, of the fixing sleeve; the thread sleeve is arranged in the second groove; a limiting cover is arranged on the first groove; the threaded sleeve penetrates through the limiting cover.

Further, the positioning assembly comprises a push block; the screw drives the push block to move towards the direction close to the image acquisition assembly.

Further, the positioning assembly further comprises a mounting frame and a moving block; the mounting frame is connected with the moving block; the push block is arranged on the moving block.

Furthermore, a slide rail is arranged on the operating platform; the positioning assembly further comprises a sliding block arranged at the bottom of the moving block; the sliding block is connected to the sliding rail in a sliding mode.

Furthermore, a stop block is arranged on the operating platform; the sliding rail penetrates through the stop block; the stop block is connected with the moving block through a spring.

The beneficial effects of the utility model reside in that: through setting up adjusting part, can be manual or motor fine setting optical machine position that awaits measuring for the optical machine that awaits measuring can handing-over imaging assembly's optical part, improves the definition of image, and shoots the image on the curtain in real time by the image acquisition subassembly and carry out the discernment analysis. If the image is clear, the optical machine to be tested can be normally used; if the image is still fuzzy, the adjustment is repeated, and the optical machine to be measured cannot be normally used under the condition that the image is still fuzzy. This scheme of adoption can adjust the position of the ray apparatus that awaits measuring for the optics part of the ray apparatus that awaits measuring can hand over each other with the optics part of formation of image subassembly and the optics part of light source subassembly, makes the image that normal ray apparatus throws on the curtain clearly visible, avoids normal ray apparatus mistake to judge as the ray apparatus that can't use, improves the accuracy nature of ray apparatus testing result.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be further described below with reference to the accompanying drawings and embodiments, wherein the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work according to the drawings:

fig. 1 is a schematic structural diagram of an image capturing device for optical machine detection according to an embodiment of the present invention;

fig. 2 is an enlarged schematic view of a point a in fig. 1 according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a positioning assembly according to an embodiment of the present invention;

fig. 4 is a schematic structural view of an adjusting assembly of another embodiment of the present invention, which is driven by a motor;

fig. 5 is an enlarged schematic view of the position B in fig. 4 according to an embodiment of the present invention.

In the figure, 1, an operation platform; 4. an imaging assembly; 5. an image acquisition component; 11. mounting blocks; 12. a slide rail; 13. a stopper; 14. a support frame; 31. a mounting frame; 32. a moving block; 33. a push block; 34. a slider; 61. a screw; 62. fixing the sleeve; 64. an active cannula; 65. a knob; 66. a threaded sleeve; 621. a first groove; 622. a second groove; 623. a limiting cover; 671. a motor; 672. a first gear; 673. a second gear.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, a clear and complete description will be given below with reference to the technical solutions of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Fig. 1 to 3 show a preferred embodiment of the present invention, which provides an image capturing device for optical machine detection, including an operation platform 1, a positioning component 3, an imaging component 4 and an image capturing component 5; the positioning component 3 and the imaging component 4 are sequentially arranged on the operating platform 1 along the direction of an optical axis from light emission to imaging; an adjusting component is arranged on the operating platform 1; the adjusting assembly drives the positioning assembly 3 to reciprocate on the operating platform 1; the image acquisition assembly 5 is disposed on the imaging assembly 4.

The optical machine to be measured is arranged on the positioning assembly, the imaging light source is applied to the optical machine to be measured, and light rays of the imaging light source sequentially pass through the optical machine to be measured and the imaging assembly 4 and are finally projected on the curtain to form an image. The image acquisition component 5 captures images on the curtain in real time and identifies the captured images. If no image appears or the image is incomplete, the optical machine to be tested cannot be used normally. If the image is not clear, the position of the optical machine to be detected can be finely adjusted manually or by a motor, so that the optical machine to be detected can be connected with the optical part of the imaging component 4, the definition of the image is improved, and the image acquisition component 5 shoots the image on the curtain in real time for identification and analysis. If the image is clear, the optical machine to be tested can be normally used; if the image is still fuzzy, the adjustment is repeated, and the optical machine to be measured cannot be normally used under the condition that the image is still fuzzy.

This scheme of adoption can adjust the position of the ray apparatus that awaits measuring for the optics part of the ray apparatus that awaits measuring can hand over each other with the optics part of formation of image subassembly 4 and the optics part of light source subassembly, makes the image that normal ray apparatus throws on the curtain clearly visible, avoids normal ray apparatus mistake to judge as the ray apparatus that can't use, improves the accuracy nature of ray apparatus testing result.

In the above embodiment, the image capturing assembly 5 is a high-resolution camera or other devices capable of capturing images, the operating platform 1 is provided with the supporting frame 14, and the camera is mounted on the supporting frame 14. The identification mode can be human eye identification or software automatic identification. Preferably, in this embodiment, a human eye recognition mode is adopted.

In the above embodiment, the imaging component 4 is a lens group, and applies an imaging light source to the optical machine to be measured, and light of the imaging light source sequentially passes through the optical machine to be measured and the lens group and then is projected on the curtain to form an image. The imaging light source is emitted by a light source component, and the light source component is a halogen lamp light source.

In a further embodiment, the operation platform 1 is provided with a mounting block 11; the adjusting assembly comprises a screw 61, a fixed sleeve 62 and a driving piece; the fixing sleeve 62 is arranged on the mounting block 11; the screw 61 passes through the mounting block 11 and the fixing sleeve 62 and is connected to the driving member. Stretch out through driving piece drive screw 61, make it promote locating component to the direction removal that is close to image acquisition subassembly 5, and then finely tune the position of awaiting measuring the ray apparatus for the ray apparatus that awaits measuring can handing-over imaging assembly 4's optical part, realizes that normal ray apparatus throws the clear visibility of image on the curtain, adjusts the position of awaiting measuring the ray apparatus many times, avoids normal ray apparatus mistake to judge as unable light machine that uses, improves the accuracy nature of ray apparatus testing result.

In a further embodiment, the drive member comprises a nut (not shown), a movable sleeve 64, and a knob 65; the screw 61 sequentially passes through the fixed sleeve 62, the nut and the movable sleeve 64 and is connected with the knob 65; a nut (not shown) is provided on the fixing sleeve 62; the movable sleeve 64 is disposed on the stationary sleeve 62; knob 65 is connected to movable sleeve 64.

The adjustment mode is a manual adjustment mode. According to the recognition result of the image, the knob 65 is rotated manually, the knob 65 drives the movable sleeve 64 and the screw 61 to rotate, the screw 61 is in threaded connection with a nut (not shown in the figure), and the nut (not shown in the figure) is fixedly connected to the fixed sleeve 62, so that the screw 61 can reciprocate, and the positioning assembly is pushed when the screw extends out, and the position of the optical machine to be detected is finely adjusted. Wherein, the structure of the adjusting component is similar to that of the micrometer screw.

In another embodiment, as shown in fig. 4-5, the driver includes a threaded sleeve 66 and an electrically powered element; the screw 61 passes through the fixed sleeve 62 and the threaded sleeve 66 in sequence; the threaded sleeve 66 is disposed on the fixed sleeve 62 and is rotatable relative to the fixed sleeve 62; the electrically powered element is connected to the threaded sleeve 66.

The electric element comprises a motor 671, a first gear 672 arranged on the thread bush 66 and a second gear 673 arranged on the rotating shaft of the motor 671; the first gear 672 is in meshing connection with the second gear 673.

One end of the fixing sleeve 62 away from the mounting block 11 is provided with a first groove 621 and a second groove 622 positioned in the first groove 621; the threaded sleeve 66 is disposed in the second recess 622; a limiting cover 623 is arranged on the first groove 621; the threaded sleeve 66 passes through the stop cap 623.

The threaded sleeve 66 is in threaded connection with the screw rod 61, the motor 671 is connected with an external controller according to the identification result of the image, the motor 671 is controlled to rotate forwards or backwards, and the motor 671 can adopt a coding motor or a stepping motor and can control the rotation angle of the motor 671. The controller sends an instruction to the motor 671, the motor 671 rotates after receiving the instruction to drive the first gear 672 and the second gear 673 to rotate, and the second gear 673 rotates to drive the threaded sleeve 66 to rotate. Because one end of the threaded sleeve 66 is arranged in the second groove 622 and is covered by the limiting cover 623, the position of the threaded sleeve 66 can be prevented from moving when the threaded sleeve 66 rotates, and the threaded sleeve 66 is limited and can only rotate but cannot move. Through the rotation of thread bush 66, telescopic motion is realized to screw rod 61 to promote locating component when stretching out, realize finely tuning the position of the ray apparatus that awaits measuring, accommodation process is more accurate.

In a further embodiment, the positioning assembly comprises a push block 33; the screw 61 drives the push block 33 to move in a direction to approach the image capturing assembly 5.

In a further embodiment, the positioning assembly further comprises a mounting frame 31 and a moving block 32; the mounting frame 31 is connected with the moving block 32; the pushing block 33 is provided on the moving block 32.

In a further embodiment, the operating platform 1 is provided with a slide rail 12; the positioning component also comprises a slide block 34 arranged at the bottom of the moving block 32; the slider 34 is slidably connected to the slide rail 12.

In a further embodiment, the operating platform 1 is provided with a stop 13; the slide rail 12 passes through the stop block 13; the stopper 13 is connected with the moving block 32 through a spring.

In the above embodiment, when the screw 61 extends out, the screw 61 pushes the pushing block 33, and the pushing block 33 is pushed to move toward the image capturing component 5, so as to drive the sliding block 34, the moving block 32, the mounting frame 31, and the optical machine to be tested to integrally slide. When the knob 65 is manually adjusted or the motor 671 drives the threaded sleeve 66, if the screw 61 moves in a direction away from the push block 33, the screw 61 loses contact with the push block 33, and at this time, under the action of the spring, the spring pulls the push block 33 to move in the direction of the screw 61, so that the push block 33 contacts with the screw 61, and the position of the optical machine to be measured is finely adjusted.

It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are considered to be within the scope of the invention as defined by the following claims.

Claims

1. The utility model provides an image acquisition device for ray apparatus detects which characterized in that: the device comprises an operation platform, a positioning component, an imaging component and an image acquisition component; the positioning assembly and the imaging assembly are sequentially arranged on the operating platform along the direction of an optical axis from light emission to imaging; an adjusting component is arranged on the operating platform; the adjusting assembly drives the positioning assembly to reciprocate on the operating platform; the image acquisition assembly is disposed on the imaging assembly.

2. The image capturing device for opto-mechanical inspection according to claim 1, wherein the operation platform is provided with a mounting block; the adjusting component comprises a screw rod, a fixed sleeve and a driving piece; the fixed sleeve is arranged on the mounting block; the screw rod penetrates through the mounting block and the fixing sleeve and is connected with the driving piece.

3. The image capturing device for opto-mechanical inspection according to claim 2, wherein the driving member comprises a nut, a movable sleeve and a knob; the screw rod sequentially penetrates through the fixed sleeve, the nut and the movable sleeve and is connected with the knob; the nut is arranged on the fixed sleeve; the movable sleeve is arranged on the fixed sleeve; the knob is connected with the movable sleeve.

4. The image capturing device for optomechanical inspection of claim 2, wherein the driving member comprises a threaded sleeve and a motorized element; the screw rod sequentially penetrates through the fixed sleeve and the threaded sleeve; the threaded sleeve is arranged on the fixed sleeve and can rotate relative to the fixed sleeve; the electric element is connected with the threaded sleeve.

5. The image capturing device for optomechanical inspection of claim 4, wherein the motorized element comprises a motor, a first gear disposed on the threaded sleeve, and a second gear disposed on the motor shaft; the first gear is in meshed connection with the second gear.

6. The image capturing device for opto-mechanical testing of claim 4, wherein the end of the retaining sleeve away from the mounting block is provided with a first groove and a second groove in the first groove; the thread sleeve is arranged in the second groove; a limiting cover is arranged on the first groove; the threaded sleeve penetrates through the limiting cover.

7. The image capturing device for opto-mechanical inspection of claim 2, wherein the positioning assembly comprises a push block; the screw drives the push block to move towards the direction close to the image acquisition assembly.

8. The image capturing device for opto-mechanical inspection according to claim 7, wherein the positioning assembly further comprises a mounting frame and a moving block; the mounting frame is connected with the moving block; the push block is arranged on the moving block.

9. The image capturing device for opto-mechanical inspection according to claim 8, wherein the operating platform is provided with a slide rail; the positioning assembly further comprises a sliding block arranged at the bottom of the moving block; the sliding block is connected to the sliding rail in a sliding mode.

10. The image capturing device for optomechanical inspection of claim 9, wherein a stop is disposed on the operation platform; the sliding rail penetrates through the stop block; the stop block is connected with the moving block through a spring.