CN214310117U - Ray apparatus detection device - Google Patents

Abstract

The utility model relates to a ray apparatus detection device, which comprises an underframe; the chassis is sequentially provided with an image assembly, a positioning assembly, an objective lens assembly and a display assembly; the positioning assembly is used for clamping the optical machine to be tested; the image assembly, the optical machine to be tested and the objective lens assembly are coaxial; the objective lens assembly is provided with an image acquisition assembly; the image assembly and the positioning assembly can reciprocate relative to the bottom frame; imaging light rays emitted by the image component are refracted by the optical machine to be tested and the objective lens component in sequence and then reach the display component for projection imaging; the image acquisition component captures an image on the display component; by adopting the scheme, the optical machine is replaced at every time only by sliding the image assembly and the positioning assembly, the image assembly, the optical machine to be detected and the positioning assembly can be ensured to be positioned on the same optical axis, and the positions of the image assembly, the optical machine and the imaging assembly are not required to be readjusted, so that the detection result of the optical machine is more accurate, the operation is simple and convenient, and the detection efficiency is high.

Description

Ray apparatus detection device

Technical Field

The utility model relates to a wear the display device field, more specifically say, relate to a ray apparatus detection device.

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. The existing optical machine detection is mainly to carry out optical machine detection by a mode of observing the optical machine to be detected by human eyes, the detection mode is low in detection efficiency, the detection result has errors due to different effects observed by the human eyes, and the optical machine can only detect a small-range focal section by human eyes, the small-range focal section possibly is not a working focal section of the optical machine, so that the detection result is inaccurate, the optical quality of the optical machine cannot be correctly judged, and the performance of the head-mounted display device is influenced.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is to provide a ray apparatus detection device, which can replace the previous ray apparatus detection mode, has higher detection efficiency, can detect the working coke section of the ray apparatus to be detected, has accurate detection result,

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

a bare engine detection device is constructed, and comprises a bottom frame; the chassis is sequentially provided with an image assembly, a positioning assembly, an objective lens assembly and a display assembly; the positioning assembly is used for clamping the optical machine to be tested; the image assembly, the optical machine to be tested and the objective lens assembly are coaxial; an image acquisition component is arranged on the objective lens component; the image assembly and the positioning assembly can reciprocate relative to the chassis;

imaging light rays emitted by the image component are refracted by the optical machine to be tested and the objective lens component in sequence and then reach the display component for projection imaging; the image acquisition component captures an image on the display component.

Furthermore, an operating platform is arranged on the bottom frame; the image assembly, the positioning assembly, the objective lens assembly and the image acquisition assembly are all arranged on the operation platform; the objective lens assembly comprises a lens frame and an objective lens arranged in the lens frame; the objective lens, the optical machine to be tested and the image assembly are coaxial.

Furthermore, a support frame is arranged on the outer side of the mirror frame; the image acquisition component comprises a camera; the camera is arranged on the support frame.

Furthermore, a slide rail is arranged on the operating platform; the positioning assembly comprises a mounting frame; an adjusting component is arranged on the mounting rack; the adjusting component comprises a moving block, a first bump and an adjusting piece; one end of the moving block is arranged on the sliding rail in a sliding mode, and the other end of the moving block is connected with the mounting frame; the first bump is arranged on the side wall of the moving block; the adjusting piece is arranged on the operating platform and is in contact with the first bump.

Furthermore, a first groove for accommodating the optical machine is formed in the mounting frame; a first clamping groove and a second clamping groove which are positioned at two sides of the first groove are formed in the surface of the mounting frame; the second clamping groove is located on the corner of the mounting frame.

Furthermore, a first locking assembly is arranged on the mounting frame; the first locking assembly includes: the elbow clamp is arranged on the operating platform, and the first clamp is arranged on the elbow clamp; the toggle clamp is positioned on the opposite side of the moving block on which the first bump is arranged; the first clamp is located in a vertical direction of the mounting frame.

Furthermore, a second locking assembly is further arranged on the mounting frame; the second locking assembly includes: the first fixing block is arranged on the mounting frame and is on the same side as the first bump, and the first handle is arranged on the first fixing block; a convex shaft penetrating through the mounting rack is arranged on the first handle; the protruding shaft is connected with the first fixed block through a spring.

Furthermore, a stop block is arranged between the positioning assembly and the image assembly; the sliding rail penetrates through the stop block; the image component comprises an image source and a slider; one end of the sliding block is arranged on the sliding rail in a sliding mode, and the other end of the sliding block is connected with the image source; the image source is provided with a driving component; the driving component drives the image source to slide along the slide rail.

Further, the drive assembly includes: the first push block is connected with the image source, the second push block is connected with the first push block, and the second handle is hinged to the second push block; the first push block is provided with a fixed column elastically connected with the first push block; when the image source moves to be close to the mounting frame, the fixing column is in contact with the image source.

Furthermore, a guide rod and a second fixing block are arranged on the operating platform; a sliding hole is formed in the second push block; the guide rod penetrates through the sliding hole; the second fixed block is provided with a sliding chute and clamping positions positioned at two ends of the sliding chute; the second handle passes through the chute.

Further, the display component is a curtain or an image display.

The beneficial effects of the utility model reside in that: the optical machine to be detected is fixedly installed through the positioning assembly, the image assembly, the optical machine to be detected and the objective assembly are coaxial, the image assembly emits imaging light rays to pass through the optical machine to be detected, the optical system formed by the image assembly and the optical machine to be detected is subjected to inverse compensation through the objective assembly, the imaging light rays emitted by the image assembly can be projected and imaged on the display assembly, images obtained on the display assembly through the image acquisition assembly are recognized and analyzed, the original optical machine detection mode is replaced, the detection efficiency is higher, the working focal section of the optical machine to be detected can be detected, the detection result is accurate, the optical quality of the optical machine can be accurately judged, and the performance of the head-mounted display device is not affected.

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 view of an optical machine detection device according to an embodiment of the present invention;

fig. 2 is a schematic top view of an optical mechanical detection device according to an embodiment of the present invention;

fig. 3 is an enlarged schematic view of a point a in fig. 2 according to an embodiment of the present invention;

fig. 4 is a schematic left side perspective view of the operation platform according to the embodiment of the present invention;

fig. 5 is an enlarged schematic view of the embodiment of the present invention at B in fig. 4;

fig. 6 is a schematic diagram of a right side perspective structure of the operation platform according to the embodiment of the present invention;

fig. 7 is an enlarged schematic view of the embodiment of the present invention at C in fig. 6;

fig. 8 is a schematic structural diagram of an objective lens assembly according to an embodiment of the present invention.

In the figure, 1, an operation platform; 5. an image acquisition component; 6. a chassis; 7. a display component; 8. an optical machine to be tested; 11. a slide rail; 12. a stopper; 13. a guide bar; 14. a second fixed block; 21. an image source; 22. a slider; 23. a first push block; 24. a second push block; 25. a second handle; 26. fixing a column; 27. a traction block; 28. a nut; 31. a mounting frame; 32. a moving block; 33. a first bump; 34. an adjustment member; 35. an elbow clip; 36. a first clamp; 37. a first fixed block; 38. a first handle; 39. a protruding shaft; 41. an objective lens; 42. a support frame; 43. a mirror frame; 141. a chute; 142. clamping; 311. a first groove; 312. a first card slot; 313. a second card slot; 361. a cross bar; 362. and (5) clamping blocks.

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.

As shown in fig. 1 to 8, a preferred embodiment of the present invention provides an optical machine detection device, which includes an underframe 6; the chassis 6 is sequentially provided with an image assembly, a positioning assembly, an objective lens assembly and a display assembly 7; the positioning assembly is used for clamping the optical machine 8 to be tested; the image component, the optical machine 8 to be tested and the objective lens component are coaxial; the objective lens assembly is provided with an image acquisition assembly; the image assembly and the positioning assembly can reciprocate relative to the bottom frame 6;

imaging light rays emitted by the image component are refracted by the optical machine to be measured 8 and the objective lens component in sequence and then reach the display component 7 for projection imaging; the image acquisition component 5 captures an image on the display component 7.

The optical machine 8 to be measured is installed on the positioning assembly, and the image assembly is moved towards the direction close to the positioning assembly, so that light rays emitted by the image assembly can be connected with an eyepiece optical system of the optical machine 8 to be measured, and an optical system is formed. After passing through the optical machine 8 to be measured, the light enters the objective lens assembly to be refracted and then is emitted out of the display assembly to be projected and imaged. If the image on the display component 7 is not clear, the optical machine to be measured 8 and the positioning component can be integrally moved by finely adjusting the position of the positioning component, so that the clearest image can be displayed on the display component 7. The image acquisition component 5 captures the image on the display component 7 and uploads the image to the background for analysis, and whether the optical machine 8 to be tested is good is judged according to the analysis result.

This scheme of adoption, the user only need press from both sides tight location with the ray apparatus 8 that awaits measuring on locating component, opens the image subassembly and can detect the optics quality of the ray apparatus 8 that awaits measuring, adopts the back projection to replace ray apparatus detection mode in the past, and detection efficiency is higher, can detect the work burnt section of the ray apparatus 8 that awaits measuring, and the testing result is accurate for the optics quality of ray apparatus can obtain accurate judgement, guarantees that head-mounted display device's performance is not influenced.

In a further embodiment, the chassis 6 is provided with an operating platform 1; the image assembly, the positioning assembly, the objective lens assembly and the image acquisition assembly 5 are all arranged on the operation platform 1; the objective lens assembly includes a lens frame 43 and an objective lens 41 disposed in the lens frame 43; the objective lens 41, the optical machine 8 to be tested and the image component are coaxial. The objective 41 is an optical system, the optical device 8 to be detected and the image component are combined into another optical system, and the optical system formed by combining the optical device 8 to be detected and the image component performs inverse compensation through the objective 41, so that an image in the working focal length range of the optical device 8 to be detected can be displayed on the display component 7 for detection and analysis.

In a further embodiment, a support frame 42 is provided outside the frame 43; the image acquisition assembly 5 comprises a camera or other device that can be used to capture images. (ii) a The camera is arranged on a support frame 42. The camera shoots the clearest image on the display component 7 and uploads the image to the background data processing end, the background data processing end processes the image gray data, analyzes the gray data and compares the gray data with a preset value, and if the gray data of the image reaches the preset value standard, the optical machine 8 to be tested is a good product; if the gray data of the image does not reach the preset value standard, the bare engine 8 to be tested is a defective product.

In a further embodiment, the operating platform 1 is provided with a slide rail 11; the positioning assembly comprises a mounting bracket 31; an adjusting component is arranged on the mounting frame 31; the adjusting component comprises a moving block 32, a first lug 33 and an adjusting piece 34; one end of the moving block 32 is slidably arranged on the slide rail 11, and the other end is connected with the mounting frame 31; the first bump 33 is arranged on the side wall of the moving block 32; the adjusting piece 34 is disposed on the operation platform 1 and contacts the first projection 33.

Wherein, the adjusting member 34 is a micrometer and is disposed on the operation platform 1, and the telescopic end of the adjusting member 34 is connected with the first protrusion 33. When the ray apparatus 8 that awaits measuring is fixed in the installation and the image subassembly reachs the assigned position and jets out the formation of image light after, if the image that the image acquisition subassembly acquireed is unclear, then through rotating regulating part 34, regulating part 34 promotes first lug 33 and slides forward or drives first lug 33 and slides backward, finely tunes the position of mounting bracket 31 and the ray apparatus 8 that awaits measuring for ray apparatus 8 can handing-over objective self optical system, makes can throw out the clearest image on the display module.

In a further embodiment, a stop 12 is provided between the positioning assembly and the image assembly; the slide rail 11 passes through the stop block 12; the image assembly includes an image source 21 and a slider 22; one end of the slide block 22 is arranged on the slide rail 11 in a sliding way, and the other end is connected with the image source 21; the image source 21 is provided with a driving component; the driving assembly drives the image source 21 to slide along the slide rail 11.

The normally used optical machine is fixed on the mounting frame 31, the image source 21 is moved to the position near the optical machine, the image source 21 is opened, imaging light rays are emitted out and projected and imaged on the display assembly 7 after sequentially passing through the optical machine and the objective lens 41. The image acquisition component 5 shoots the image on the display component 7 for analysis, if the image is clear, the stop block 12 is arranged at the position of the image source 21 and is in close contact with the slide block 22 at the bottom of the image source 21, and the distance between the operation platform 1 and the display component 7 is set and is fixed on the bottom frame 6.

When the optical machine is used for detection, the optical machine 8 to be detected is arranged on the mounting frame 31 and fixed, then the image source 21 is driven to move through the driving assembly, and when the sliding block 22 is in contact with the stop block 12, the driving assembly is locked, so that the image source 21 is fixed. The image source 21 is opened, imaging light rays emitted by the image source 21 pass through the optical machine 8 to be detected, the image source and an ocular optical system of the optical machine to be detected are combined into a new optical system, inverse compensation is carried out through the objective lens 41, and the new optical system is projected on the display component 7 to form an image. If the image on the display component 7 is not clear, the fine adjustment adjusting piece 34 can be used to combine the image source 21 and the ocular optical system of the optical machine 8 to be measured into a new optical system which can be crossed with the optical system of the objective 41. The image acquisition component 5 captures the clearest image on the display component 7 and uploads the image to the background data processing end, the background data processing end processes the image gray data, analyzes the gray data and compares the gray data with a preset value, and if the gray data of the image reaches the preset value standard, the optical machine 8 to be tested is a good product; if the gray data of the image does not reach the preset value standard, the bare engine 8 to be tested is a defective product.

In the above embodiment, the adjusting member 34 may be not only manually rotated adjustment but also motor-driven adjustment.

In the above embodiment, the operation platform 1 and the display module 7 are fixed on the bottom frame 6 according to the set distance during normal optical machine detection, so that when the optical machine detection device needs to be transferred, the optical machine detection device can be moved integrally, and the distance between the operation platform 1 and the display module 7 is kept unchanged. Avoid shifting after the ray apparatus detection device, still need reset the distance between operation platform 1 and the display module 7, reduce the time that expends in the ray apparatus testing process, it is more simple and convenient to operate, prevent to reset the position deviation that appears of in-process operation platform 1 and display module 7, guarantee the accuracy nature of ray apparatus testing result, improve ray apparatus detection efficiency.

In the above embodiment, the bottom of the moving block 32 is connected to the stopper 12 through a spring, when the adjusting member 34 rotates reversely, the adjusting member 34 loses contact with the first protrusion 33, and at this time, the spring pulls the moving block 32 back under the action of the spring, so that the moving block 32 contacts with the adjusting member 34.

In a further embodiment, the mounting frame 31 is provided with a first groove 311 for accommodating the optical machine; the surface of the mounting bracket 31 is provided with a first clamping groove 312 and a second clamping groove 313 which are positioned at two sides of the first groove 311; the second locking groove 313 is located on a corner of the mounting bracket 31.

The mounting frame 31 is provided with a first locking assembly; the first locking assembly includes: an elbow clamp 35 provided on the operation platform 1, and a first clamp 36 provided on the elbow clamp 35; the elbow clip 35 is positioned on the opposite side of the first projection 33 on the moving block 32; the first clamp 36 is located in the vertical direction of the mounting frame 31.

A second locking assembly is also arranged on the mounting frame 31; the second locking assembly includes: a first fixing block 37 arranged on the mounting frame 31 and on the same side as the first bump 33, and a first handle 38 arranged on the first fixing block 37; the first handle 38 is provided with a convex shaft 39 which passes through the mounting frame 31; the protruding shaft 39 is connected with the first fixing block 37 through a spring.

In the above embodiment, the first locking groove 312 is located in the middle of the top surface of the mounting frame 31, a screw is disposed at the notch of the first locking groove 312, and the edge of the screw is located on the notch of the first locking groove 312. The second locking groove 313 is a V-shaped groove. The first handle 38 is pulled leftwards, the mounting rods on the optical machine 8 to be tested are respectively arranged in the first clamping groove 312 and the second clamping groove 313, the first handle 38 is lightly placed, the first handle 38 is pulled rightwards by elasticity under the action of the spring, the convex shaft 39 abuts against the surface of the optical machine 8 to be tested, and the optical machine 8 to be tested is fixed in the X-axis direction. Then, the toggle clamp 35 is pulled, and the toggle clamp 35 drives the first clamp 36 to move downward and engage with two side surfaces of the second engaging groove 313 to clamp the mounting rod located in the second engaging groove 313. The first clamp 36 includes a cross bar 361 and a clamp block 362 disposed on the cross bar 361, the clamp block 362 can reciprocate relative to the cross bar 361 and is connected to the cross bar 361 through a spring, and a bottom surface of the clamp block 362 is an inclined surface. By means of the elasticity of the spring, the bottom surface of the clamping block 362 is matched with the two side surfaces of the second clamping groove 313 to clamp the mounting rod in the second clamping groove 313, so that the optical machine 8 to be detected is fixed in the Y-axis direction and the Z-axis direction, the optical machine 8 to be detected is fixed in the three-axis direction, the optical machine 8 to be detected, the image source 21 and the objective lens 41 are coaxial, the position of the optical machine 8 to be detected is prevented from being deviated in the detection process, and the accuracy of the detection result of the optical machine 8 to be detected is guaranteed.

In the above embodiment, two side surfaces in the second card slot 313 are both the planes processed by finish machining, so that the position of the optical machine 8 to be detected is more accurate when the three axes are fixed, and the accuracy of the detection result of the optical machine 8 to be detected is ensured. Wherein, the elbow clip 35 is a Misimi CO4-6 type elbow clip.

In the above embodiment, the image source 21 is a halogen lamp light source. The imaging light is the light which is emitted by the halogen lamp light source and participates in high-quality imaging.

In a further embodiment, the driver comprises: a first push block 23 connected with the image source 21, a second push block 24 connected with the first push block 23, and a second handle 25 hinged on the second push block 24; the first push block 23 is provided with a fixed column 26 elastically connected with the first push block 23; when the image source 21 moves closer to the mounting frame 31, the fixed column 26 comes into contact with the image source 21.

The operating platform 1 is provided with a guide rod 13 and a second fixing block 14; a sliding hole is arranged on the second push block 24; the guide rod 13 passes through the sliding hole; the second fixed block 14 is provided with a chute 141 and a clip 142 at two ends of the chute 141; the second handle 25 passes through the slide groove 141.

After the optical machine 8 to be tested is disposed on the mounting frame 31 and fixed in the three-axis manner, the second handle 25 is pulled, the second handle 25 drives the second pushing block 24 to move along the sliding groove 141, the second pushing block 24 drives the first pushing block 23 and the fixing column 26 to push the image source 21 to move toward the stopper 12, and the second handle 25 is shifted downward when reaching the position 142 and is clamped in the position 142. The first push block 23 pushes forward in the process that the second handle 25 is clamped in the clamping position 142, so as to drive the fixing column 26 to extrude the image source 21, and the fixing column 26 props against the image source 21 under the elastic action, so that the sliding block 22 is in close contact with the stop block 12, the position of the image source 21 is fixed, and the detection result of the optical machine is more accurate.

In the above embodiment, the two side surfaces of the stop 12 contacting the slider 22 are both the surfaces processed by finish machining, so that the position is more accurate when the image source 21 is fixed, and the accuracy of the detection result of the optical machine 8 to be detected is ensured. The guide rod 13 guides the second pushing block 24, so that the second pushing block 24 can keep linear reciprocating motion under the driving of the second handle 25, and the image source 21, the optical machine 8 to be measured and the objective lens 41 are always kept on the same optical axis when the optical machine 8 to be measured is replaced.

In the above embodiment, the drawing block 27 is disposed on the back surface of the sliding block 22 contacting the stopper 12, and the nut 28 is disposed on the second pushing block 24, so that when the optical machine 8 to be tested is replaced, the nut 28 contacts the drawing block 27 to drive the image source 21 to move away from the mounting frame 31 by pulling back the second handle 25.

In a further embodiment, the display assembly 7 is a curtain or an image display.

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 (11)

1. An optical machine detection device, characterized in that: comprises a chassis; the chassis is sequentially provided with an image assembly, a positioning assembly, an objective lens assembly and a display assembly; the positioning assembly is used for clamping the optical machine to be tested; the image assembly, the optical machine to be tested and the objective lens assembly are coaxial; an image acquisition component is arranged on the objective lens component; the image assembly and the positioning assembly can reciprocate relative to the chassis;

imaging light rays emitted by the image component are refracted by the optical machine to be tested and the objective lens component in sequence and then reach the display component for inverse projection imaging; the image acquisition component captures an image on the display component.

2. The opto-mechanical testing device of claim 1 wherein the chassis is provided with an operating platform; the image assembly, the positioning assembly, the objective lens assembly and the image acquisition assembly are all arranged on the operation platform; the objective lens assembly comprises a lens frame and an objective lens arranged in the lens frame; the objective lens, the optical machine to be tested and the image assembly are coaxial.

3. The opto-mechanical detection device according to claim 2, wherein a support frame is provided on an outer side of the mirror frame; the image acquisition component comprises a camera; the camera is arranged on the support frame.

4. The carriage detection device of claim 2, wherein the operating platform is provided with a slide rail; the positioning assembly comprises a mounting frame; an adjusting component is arranged on the mounting rack; the adjusting component comprises a moving block, a first bump and an adjusting piece; one end of the moving block is arranged on the sliding rail in a sliding mode, and the other end of the moving block is connected with the mounting frame; the first bump is arranged on the side wall of the moving block; the adjusting piece is arranged on the operating platform and is in contact with the first bump.

5. The bare engine detection device according to claim 4, wherein the mounting bracket is provided with a first groove for accommodating the bare engine; a first clamping groove and a second clamping groove which are positioned at two sides of the first groove are formed in the surface of the mounting frame; the second clamping groove is located on the corner of the mounting frame.

6. The opto-mechanical detection arrangement of claim 5 wherein the mounting bracket is provided with a first locking assembly; the first locking assembly includes: the elbow clamp is arranged on the operating platform, and the first clamp is arranged on the elbow clamp; the toggle clamp is positioned on the opposite side of the moving block on which the first bump is arranged; the first clamp is located in a vertical direction of the mounting frame.

7. The opto-mechanical detection arrangement of claim 6 wherein the mounting bracket is further provided with a second locking assembly; the second locking assembly includes: the first fixing block is arranged on the mounting frame and is on the same side as the first bump, and the first handle is arranged on the first fixing block; a convex shaft penetrating through the mounting rack is arranged on the first handle; the protruding shaft is connected with the first fixed block through a spring.

8. The opto-mechanical detection arrangement of claim 4 wherein a stop is disposed between the positioning assembly and the image assembly; the sliding rail penetrates through the stop block; the image component comprises an image source and a slider; one end of the sliding block is arranged on the sliding rail in a sliding mode, and the other end of the sliding block is connected with the image source; the image source is provided with a driving component; the driving component drives the image source to slide along the slide rail.

9. The opto-mechanical detection arrangement of claim 8 wherein the drive assembly comprises: the first push block is connected with the image source, the second push block is connected with the first push block, and the second handle is hinged to the second push block; the first push block is provided with a fixed column elastically connected with the first push block; when the image source moves to be close to the mounting frame, the fixing column is in contact with the image source.

10. The carriage detection device of claim 9, wherein the operating platform is provided with a guide rod and a second fixed block; a sliding hole is formed in the second push block; the guide rod penetrates through the sliding hole; the second fixed block is provided with a sliding chute and clamping positions positioned at two ends of the sliding chute; the second handle passes through the chute.

11. The light engine detection device of claim 1, wherein the display component is a curtain or an image display.

Images