CN218973798U - Virtual step testing device of virtual image display equipment - Google Patents

Abstract

The disclosure relates to the technical field of electromechanical testing, and provides a virtual step testing device of virtual image display equipment. The virtual step testing device is provided with a testing bench, a camera and a reflecting piece; the method comprises the steps that a camera, a reflecting piece and a virtual image display device are arranged on a test rack, a bearing part and a clamping mechanism are arranged on the test rack, a profiling cavity for placing the virtual image display device is formed on the surface of the bearing part in a concave mode, and the clamping mechanism is arranged on the bearing part to fix the virtual image display device; the virtual image display device is positioned below the reflecting piece, image light rays emitted by the virtual image display device form a virtual image after being reflected by the reflecting piece, the camera and the reflecting piece are arranged at intervals and aim at the virtual image shooting, finally, the profiling cavity is used for positioning the position of the virtual image display device and detecting whether the shape of the shell of the virtual image display device meets the specification, and the virtual walking condition of the virtual image display device is obtained by analyzing the delay relation between the rotation of the amplifying element of the virtual image display device and the change of the position of the virtual image.

Description

Virtual step testing device of virtual image display equipment

Technical Field

The disclosure relates to the technical field of electromechanical testing, in particular to a virtual step testing device of virtual image display equipment.

Background

In the virtual image display apparatus, a motor is generally used to drive an amplifying element of the virtual image display apparatus to rotate in cooperation with a screw or gear, for example, the amplifying element is a curved mirror, so as to achieve the purpose of changing the position of a projected image of the virtual image display apparatus, but when the motor changes the direction of driving the screw or gear, the screw or gear is in cooperation with a gap, the gap of the screw or gear causes a break in rotation of the curved mirror to cause a virtual step, thereby affecting the display quality of the virtual image display device.

Disclosure of Invention

To solve the above technical problems or at least partially solve the above technical problems, the present disclosure provides a virtual step testing apparatus of a virtual image display device.

The utility model provides a virtual step testing device of virtual image display equipment, which comprises a testing bench, a camera and a reflecting piece;

the camera, the reflecting piece and the virtual image display device are all arranged on the test bench, a bearing part and a clamping mechanism are arranged on the test bench, the bearing part is connected with the test bench, the surface of the bearing part is sunken to form a profiling cavity, the profiling cavity is suitable for placing the virtual image display device, the clamping mechanism is arranged on the bearing part, and the clamping mechanism is suitable for compacting the virtual image display device;

the virtual image display device is located below the reflecting piece, image light rays emitted by the virtual image display device are reflected by the reflecting piece to form virtual images, and the camera is arranged at intervals with the reflecting piece and is aligned with the virtual images formed by reflection of the reflecting piece.

Optionally, the test bench includes the rack bottom plate, makes a video recording support and reflector support, make a video recording the support with the one end of rack bottom plate is connected, the reflector support with the other end of rack bottom plate is connected, the reflector sets up the reflector support is kept away from the one end of bottom plate, the support of making a video recording is used for with the camera is fixed the preset position department in virtual image display device's eye box region.

Optionally, the reflector support includes reflector support base and connecting rod, the connecting rod set up in on the reflector support base, the reflector sets up on the connecting rod, the carrier part sets up on the reflector support base.

Optionally, a fixing fixture is arranged on the test bench and is used for fixing the reflecting piece on the test bench.

Optionally, the mounting fixture includes bearing base and clamping piece, bearing base sets up on the connecting rod, the clamping piece with bearing base is connected, is used for with the reflector is fixed bear on the base.

Optionally, the bearing base includes two piece at least windscreen loading board, two piece at least windscreen loading board is around the setting of reflection piece, just all be equipped with on the loading board and accept the groove, the edge of reflection piece with accept the groove joint.

Optionally, the holder includes fixed part, butt joint and locking portion, fixed part with bear the base and be connected, butt joint with fixed part rotates to be connected, locking portion with butt joint is connected, is used for driving butt joint rotates.

Optionally, the clamping mechanism includes pressure head and rotatory lift cylinder, be equipped with on the portion of bearing the weight of rotatory lift cylinder, rotatory lift cylinder is kept away from the one end of bearing the weight of portion is equipped with the pressure head, virtual image display device place in during the profile modeling intracavity, rotatory lift cylinder drives the pressure head rotates, and drives the pressure head is towards being close to virtual image display device's direction removes, so that the pressure head with virtual image display device butt.

Optionally, the number of the clamping mechanisms is a plurality, and the plurality of the clamping mechanisms are oppositely arranged on the bearing part.

Optionally, when the virtual image display device is installed in the profiling cavity, the bottom of the virtual image display device is attached to the inner side surface of the profiling cavity, so as to detect the shape of the shell of the virtual image display device.

Optionally, the system further comprises a controller, wherein the controller is respectively and electrically connected with the virtual image display device and the camera, and is at least used for controlling the action of an amplifying element of the virtual image display device and analyzing the virtual image picture shot by the camera.

The virtual step testing device of the virtual image display equipment is provided with a testing bench, a camera and a reflecting piece; the method comprises the steps that a camera, a reflecting piece and a virtual image display device are arranged on a test rack, a bearing part and a clamping mechanism are arranged on the test rack, a profiling cavity for placing the virtual image display device is formed on the surface of the bearing part in a concave mode, and the clamping mechanism is arranged on the bearing part to fix the virtual image display device; the virtual image display device is positioned below the reflecting piece, so that image light rays emitted by the virtual image display device form virtual images after being reflected by the reflecting piece, the camera and the reflecting piece are arranged at intervals and aim at the virtual images formed by the reflection of the reflecting piece, finally, the profiling cavity is used for positioning the position of the virtual image display device and detecting whether the shape of the shell of the virtual image display device meets the specification or not, and the virtual steps of the virtual image display device are obtained by analyzing the delay relation between the rotation of the amplifying element of the virtual image display device and the change of the position of the virtual image.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure.

In order to more clearly illustrate the embodiments of the present disclosure or the solutions in the prior art, the drawings that are required for the description of the embodiments or the prior art will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.

FIG. 1 is a schematic structural diagram of an imaginary part testing apparatus according to an embodiment of the disclosure;

fig. 2 is a schematic diagram illustrating an assembly structure of the virtual image display apparatus, the bearing portion, and the clamping mechanism according to an embodiment of the present disclosure.

1, a test bench; 11. a gantry base plate; 12. a reflector holder; 13. a camera support; 14. a fixing clamp; 141. a load-bearing base; 142. a clamping member; 2. a reflecting member; 3. a virtual image display device; 4. a camera; 51. a carrying part; 52. a clamping mechanism.

Detailed Description

In order that the above objects, features and advantages of the present disclosure may be more clearly understood, a further description of aspects of the present disclosure will be provided below. It should be noted that, without conflict, the embodiments of the present disclosure and features in the embodiments may be combined with each other.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, but the present disclosure may be practiced otherwise than as described herein; it will be apparent that the embodiments in the specification are only some, but not all, embodiments of the disclosure.

The inventor finds that when the amplifying element is driven to act reversely, the interruption of rotation of the amplifying element can cause the occurrence of virtual steps, so that the virtual steps of the virtual image display device need to be tested to improve the user experience of the virtual image display device in use.

Referring to fig. 1 and 2, an embodiment of the present disclosure provides a virtual step test apparatus of a virtual image display device, including a test bench 1, a camera 4, and a reflector 2; the camera 4, the reflecting piece 2 and the virtual image display device 3 are all arranged on the test bench 1, the test bench 1 is provided with a bearing part 51 and a clamping mechanism 52, the bearing part 51 is connected with the test bench 1, the surface of the bearing part 51 is sunken to form a profiling cavity, the profiling cavity is suitable for placing the virtual image display device 3, the clamping mechanism 52 is arranged on the bearing part 51, and the clamping mechanism 52 is suitable for compacting the virtual image display device 3; the virtual image display device 3 is located below the reflecting member 2, the image light emitted by the virtual image display device 3 is reflected by the reflecting member 2 to form a virtual image, and the camera 4 is arranged at intervals from the reflecting member 2 and is aligned with the virtual image formed by the reflection of the reflecting member 2.

Specifically, the virtual image Display device 3 may be selected as a HUD device, which is called a Head-Up Display in english, and is also called a Head-Up Display system, for example, a multifunctional instrument panel with a blind operation centered on a vehicle driver. The HUD device is used for projecting important driving information such as speed per hour and navigation onto windshield glass in front of a driver or a secondary driving, so that the driver can see the important driving information such as speed per hour and navigation without lowering the head and turning the head as much as possible. For example, the HUD device structure includes a housing, an image source, a curved mirror, and a motor, wherein the curved mirror is mounted in the housing as a reflective magnifying element, the image source is disposed in the housing, and the motor is connected to the curved mirror so that the curved mirror can rotate relative to the housing. The image emitted by the image source is reflected and amplified by the curved mirror and then projected to the front windshield glass, and the front windshield glass reflects the image light to the eye box area. It will be appreciated that the region in which the observer needs to view the image, i.e. the eyebox region (eyebox), is preset according to the actual requirements, and the eyebox region refers to the region in which the eyes of the observer can see the image displayed by the display device, and may be a planar region or a stereoscopic region, for example.

The HUD equipment is used for installing near the control cabinet of car, curved mirror orientation car's front windshield glass, can pass through the curved mirror with the picture that the image source was projected after the virtual image display device 3 starts and throw preceding windshield glass after amplifying, reflect to user seriously and form the virtual image through preceding windshield glass, make the driver can see the virtual image information that HUD equipment was projected on car windshield glass in real time, the angle of projection light can be adjusted in motor drive curved mirror rotation, because the motor can delay and produce the virtual step when changing curved mirror's rotation state, so the virtual step test system of virtual image display equipment that needs this embodiment of the disclosure detects the virtual step of HUD equipment, in order to adjust the parameter of HUD equipment and guarantee that HUD equipment can receive user's accurate control in practical application.

The test bench 1 can be selected to be provided with two steel frames at two ends of a rectangular panel respectively, the two steel frames are provided with the camera 4 and the reflecting piece 2 respectively, the test bench 1 can be selected to be an electric control cabinet, two portal frames are oppositely arranged on an internal object placing plane of the electric control cabinet and perpendicular to the object placing plane, and the two portal frames are provided with the camera 4 and the reflecting piece 2 respectively.

The reflecting piece 2 can be a rectangular panel, the reflecting piece 2 is arranged for simulating the windshield glass of the automobile, so that the reflecting piece 2 can be selected as a part of the windshield glass of the automobile, the reflecting piece 2 can be a transparent panel made of resin or other materials, the radian of the reflecting piece 2 is consistent with that of the windshield glass of the automobile, the reflecting piece 2 is obliquely arranged on the test bench 1, the reflecting piece 2 and the ground can be specifically selected to form an included angle of 45 degrees, the reflecting piece 2 and the ground can be selected to form an included angle of 60 degrees, and the value of the included angle between the reflecting piece 2 and the ground can be determined according to the included angles of the windshield glass of different automobile types and the ground.

The carrying portion 51 may be a rectangular platform, or may be a cylindrical platform; the bearing part 51 can be selected to be connected with the test bench 1 through bolts, and the bearing part 51 can be selected to be connected with the test bench 1 through positioning pins; the bearing part 51 can be selectively recessed on one surface close to the virtual image display device 3 to form a profiling cavity, the profiling cavity can be selected to be a rectangular cavity, the internal shape and the internal size of the profiling cavity are consistent with the shape and the size of the shell of the virtual image display device 3, the profiling cavity can be selected to accommodate the lower half part of the virtual image display device 3, and the profiling cavity can also accommodate the bottom part of the shell of the virtual image display device 3; the profiling cavity can locate the position of the virtual image display device 3 on the bearing part 51, and can detect whether the manufacturing of the shell of the virtual image display device 3 meets the specification or not, so that the situation that the shell of the virtual image display device 3 is too large in tolerance and is difficult to install in an automobile is avoided.

The above-mentioned clamping mechanism 52 may be selected as a bolt provided on the bearing portion 51, a screw hole is provided on the virtual image display device 3, and after the virtual image display device 3 is placed on the bearing portion 51, the virtual image display device 3 is connected to the bearing portion 51 by passing the bolt through the screw hole and providing a nut on the bolt; the clamping mechanism 52 may be an air cylinder mounted on the carrying portion 51, a pressure head is disposed at the head of the air cylinder, the virtual image display device 3 is placed on the carrying portion 51, the head of the air cylinder is lowered, and the pressure head is pressed on the virtual image display device 3, so that the virtual image display device 3 is fixedly connected with the carrying portion 51.

In specific use, the virtual image display device 3 is placed in the profiling cavity, the virtual image display device 3 is mounted on the bearing part 51 by using the clamping mechanism 52, the virtual image display device 3 is started, a virtual image is projected on the reflecting piece 2, the amplifying element of the virtual image display device 3 is controlled to rotate, the position of the virtual image formed by reflection of the reflecting piece 2 is changed, the camera 4 shoots virtual image position change information, and virtual steps of the virtual image display device 3 are obtained by analyzing delay between rotation of the amplifying element of the virtual image display device 3 and the virtual image position change.

That is, the virtual step test principle is that virtual images at different positions are generated when the curved mirror of the HUD is rotated, and virtual steps of a motor for driving the curved mirror to rotate are obtained by analyzing the virtual images at different positions, so that after the vehicle is installed in the future, the virtual steps existing in the motor can be compensated before the HUD is used. Thus, when a user issues a command to control the virtual image to be adjusted to the target position, the HUD can accurately perform adjustment control.

By arranging a test bench 1, a camera 4 and a reflecting piece 2; the camera 4, the reflecting piece 2 and the virtual image display device 3 are arranged on the test bench 1, a bearing part 51 and a clamping mechanism 52 are arranged on the test bench 1, the bearing part 51 is connected with the test bench 1, a profiling cavity is formed by sinking the surface of the bearing part 51, the profiling cavity is suitable for placing the virtual image display device 3, the clamping mechanism 52 is arranged on the bearing part 51, and the clamping mechanism 52 is suitable for compacting the virtual image display device 3; the virtual image display device 3 is located below the reflecting piece 2, the image light emitted by the virtual image display device 3 forms a virtual image after being reflected by the reflecting piece 2, the camera 4 is arranged at intervals with the reflecting piece 2 and is aligned with the virtual image formed by the reflection of the reflecting piece 2, finally, the profiling cavity can locate the position of the virtual image display device 3 and can detect whether the shape of the shell of the virtual image display device 3 meets the specification, and the virtual walking condition of the virtual image display device 3 is obtained by analyzing the delay between the rotation of the amplifying element of the virtual image display device 3 and the change of the virtual image position.

Referring to fig. 1 and 2, in some embodiments, the test bench 1 includes a bench base 11, a camera support 13, and a reflector support 12, the camera support 13 is connected to one end of the bench base 11, the reflector support 12 is connected to the other end of the bench base 11, the reflector 2 is disposed at an end of the reflector support 12 remote from the base, and the camera support 13 is used to fix the camera 4 at a preset position of the eye box area of the virtual image display device 3, for example, the preset position is the center of the eye box area. Specifically, the rack bottom plate 11 may be a rectangular plate, the camera bracket 13 may be a rectangular bracket, or may be a cylindrical bracket, and the reflector bracket 12 may be a rectangular bracket, or may be a cylindrical bracket; the gantry base plate 11, the imaging support 13, and the reflector support 12 may be selected as an integrated structure, and of course, the gantry base plate 11, the imaging support 13, and the reflector support 12 may be connected by bolts.

The above-mentioned light that the virtual image display device 3 throws to reflector 2 forms the virtual image after the reflection of reflector 2, and when the user faced reflector 2, the user only need eyes to be located certain space in order to see the virtual image that the virtual image display device 3 throws formed, this space scope is the eye box region of virtual image display device 3, can select to use the bolt fastening to make a video recording support 13 with camera 4, and design the height of camera support 13 makes camera 4 be located the center in eye box region, of course also can select to be equipped with the buckle on the camera support 13, fix camera 4 on camera support 13 through the buckle, and make camera 4 be located the one side edge that the eye box region is close to the ground.

Through setting up test rack 1 and including rack bottom plate 11, support 13 and reflector support 12 make a video recording, be equipped with the support 13 of making a video recording in the one end of rack bottom plate 11, the other end is equipped with reflector support 12 to the support 13 of making a video recording is used for fixing the camera 4 in the preset position department of the eye box region of virtual image display device 3, finally makes the virtual image position change information on the camera 4 can accurate record reflector 2, has promoted virtual image display device's virtual step detection device's accuracy to virtual step detection.

Referring to fig. 1 and 2, in some embodiments, the reflector holder 12 includes a reflector holder base on which the connecting rod is disposed, and a connecting rod on which the reflector 2 is disposed, and the bearing 51 is disposed on the reflector holder base. The reflecting piece support base can be selected to be of a rectangular structure, or of course, a cylindrical structure is also selected, the connecting rod is arranged on the reflecting piece support base, the connecting rod and reflecting piece support base integrated structure can be selected, or of course, the connecting rod and the reflecting piece support base can be connected through a bolt, and the volume of the reflecting piece support base is larger than that of the connecting rod; the bearing part 51 and the reflector bracket base can be selectively connected through bolts, and a buckle is arranged on the reflector bracket base, so that the bearing part 51 and the reflector bracket base are connected through the buckle.

Through setting up reflector support 12 and including reflector support base and connecting rod, set up the connecting rod on reflector support base to reflector 2 sets up on the connecting rod, and carrier part 51 sets up on reflector support base, finally makes reflector support base can reduce the focus of reflector support 12, promotes the stability of reflector support 12, avoids reflector support 12 to make reflector 2 rock because of the vibration, thereby influences the definition degree of camera 4 shooting image, and leads to reducing the accuracy of the virtual image position change information that camera 4 shot.

Referring to fig. 1 and 2, in some embodiments, a fixing clamp 14 is provided on the test bench 1, and is used for fixing the reflecting member 2 on the test bench 1, specifically, the fixing clamp 14 may be a stainless steel clamp connected to a connecting rod, or a screw may be provided on the connecting rod, a through hole is provided on the reflecting member 2, the screw passes through the through hole, a nut is used to install the screw on the screw, so that the reflecting member 2 is located between the connecting rod and the nut, and the reflecting member 2 is installed on the connecting rod by abutting with the reflecting member 2 after the nut is screwed.

Through set up mounting fixture 14 on test bench 1 for fix reflector 2 on test bench 1, make reflector 2 can be connected and break away from with the connecting rod through mounting fixture 14 convenient and fast, promoted the convenience of installation and change reflector 2 operation on the reflector support 12.

Referring to fig. 1 and 2, in some embodiments, the fixing jig 14 includes a bearing base 141 and a clamping member 142, the bearing base 141 being disposed on the connection rod, the clamping member 142 being connected to the bearing base 141 for fixing the reflecting member 2 on the bearing base 141.

Specifically, the bearing base 141 may be a rectangular panel, or may be an oval panel, or may be a bolt to connect the clamping member 142 with the bearing base 141, or may be a riveting manner to connect the clamping member 142 with the bearing base 141; the bearing base 141 can be selected to form an included angle of 45 degrees with the ground, of course, the bearing base 141 can be selected to form an included angle of 60 degrees with the ground, the clamping piece 142 can be selected to be a stainless steel clamp, of course, the clamping piece 142 can be selected to be two magnets, one magnet is arranged on the bearing base 141, the reflecting piece 2 is arranged on the bearing base 141, the other magnet is arranged on the reflecting piece 2, and the reflecting piece 2 is fixed on the bearing base 141 through the magnetic force of the magnets.

Through setting up mounting fixture 14 including bearing base 141 and holder 142, will bear the base 141 setting on the connecting rod, with holder 142 and bear the base 141 and be connected for fix reflector 2 on bearing the base 141, finally make reflector 2 pass through the stable installation of holder 142 on bearing the base 141, promoted the stability when reflector 2 installs on reflector support 12.

Referring to fig. 1 and 2, in some embodiments, the bearing base 141 includes at least two windshield bearing plates, at least two windshield bearing plates are disposed around the reflecting member 2, and the windshield bearing plates are each provided with a bearing groove, where the edge of the reflecting member 2 is clamped with the bearing groove, specifically, the windshield bearing plates may be selected to be rectangular panels, the two windshield bearing plates may be selectively disposed around the edge of the reflecting member 2, and the bearing grooves may be selectively disposed on the opposite side of the windshield bearing plates to the reflecting member 2, so that when the reflecting member 2 is placed on the windshield bearing plates, the edge of the reflecting member 2 abuts against the side wall of the bearing groove, or alternatively, the bearing grooves may be disposed on the opposite side of the two windshield bearing plates, and the edge of the reflecting member 2 may be inserted into the bearing grooves, so that the two windshield bearing plates may be disposed around the edge of the reflecting member 2.

Through setting up and bear the weight of the base 141 and include two piece at least windscreen carrier plates, two piece at least windscreen carrier plates set up around reflector 2 to all be equipped with on the windscreen carrier plate and accept the groove joint, with the edge and accepting the groove joint of reflector 2, finally make the edge and accepting the groove joint of reflector 2 and with reflector 2 and bear the weight of the base 141 and be connected steadily, promoted the stability that reflector 2 and bear the weight of the base 141 to be connected.

Referring to fig. 1 and 2, in some embodiments, the clamping member 142 includes a fixing portion, an abutment and a locking portion, where the fixing portion is connected with the bearing base 141, the abutment is rotationally connected with the fixing portion, and the locking portion is connected with the abutment and is used for driving the abutment to rotate, and specifically, the fixing portion may be selected to have a rectangular structure, or may be selected to have a cylindrical structure, and the abutment may be selected to have a rectangular shape, or may be selected to have a cylindrical shape; one end of the fixing part is connected with the bearing base 141, the other end of the fixing part is rotatably provided with a butt joint, and when the reflecting piece 2 is placed on the bearing base 141, the butt joint can rotate towards the direction close to the bearing base 141, so that the reflecting piece 2 is placed on the upper hand of the bearing base 141, and the butt joint is in butt joint with one surface of the reflecting piece 2 away from the bearing base 141; the locking part can fix the relative position between the abutting joint and the fixing part, so that the reflecting piece 2 is stably arranged on the bearing base 141 through friction force, the locking part can be selected to be a buckle arranged between the abutting joint and the fixing part, and the magnets can be respectively arranged on the abutting joint and the fixing part, so that the abutting joint and the fixing part can keep the position stable through magnetic force.

Through setting up holder 142 and including fixed part, butt joint and locking portion, fixed part is connected with bearing the base 141, and the butt joint rotates with the fixed part to be connected, and locking portion is connected with the butt joint for drive the butt joint and rotate, make the reflection piece 2 can be through the fixed part, the cooperation stable installation of butt joint and locking portion on bearing the base 141, promoted the stability that reflection piece 2 and test bench 1 are connected.

Referring to fig. 1 and 2, in some embodiments, the clamping mechanism 52 includes a pressing head and a rotary lifting cylinder, the bearing portion 51 is provided with the rotary lifting cylinder, one end of the rotary lifting cylinder away from the bearing portion 51 is provided with the pressing head, and when the virtual image display device 3 is placed in the profiling cavity, the rotary lifting cylinder drives the pressing head to rotate and drives the pressing head to move towards a direction close to the virtual image display device 3, so that the pressing head is abutted with the virtual image display device 3.

Specifically, the rotary lifting cylinder can be selected as a cylinder or a servo motor; the rotary lifting cylinder may be provided on the bearing portion 51 by using bolts, or may be connected to the bearing portion 51 by using rivets; the pressure head can be selected as rectangular panel, of course also can be selected as oval panel, can select to set up rotatory lift cylinder at the edge of carrier part 51, when virtual image display device 3 is not placed on carrier part 51, the pressure head rotates towards the direction of keeping away from the center of carrier part 51, provide the space of placing on carrier part 51 for virtual image display device 3, after virtual image display device 3 is placed on carrier part 51, rotatory lift cylinder makes the pressure head rotate, the pressure head rotates to the top of virtual image display device 3, rotatory lift cylinder drives the pressure head and moves down and make pressure head and virtual image display device 3 butt, thereby make the stable installation of virtual image display device 3 on carrier part 51.

Through setting up clamping mechanism 52 and including pressure head and rotatory lift cylinder, be equipped with rotatory lift cylinder on loading part 51, the one end that the loading part 51 was kept away from to rotatory lift cylinder is equipped with the pressure head, when making virtual image display device 3 place in the profile modeling intracavity, rotatory lift cylinder drives the pressure head and rotates to drive the pressure head and remove towards the direction that is close to virtual image display device 3, so that pressure head and virtual image display device 3 butt, finally make rotatory lift device cooperation pressure head with virtual image display device 3 with loading part 51 stable connection, promoted the stability that virtual image display device 3 and loading part 51 are connected.

Referring to fig. 1 and 2, in some embodiments, the number of clamping mechanisms 52 is plural, and the plurality of clamping mechanisms 52 are disposed opposite each other on the carrier portion 51. Specifically, two clamping mechanisms 52 may be selectively provided on the carrier portion 51, but it is needless to say that four clamping mechanisms 52 may be selectively provided on the carrier portion 51, or that other numbers of clamping mechanisms 52 may be provided on the carrier portion 51.

By providing the plurality of the clamping mechanisms 52 in number and the plurality of the clamping mechanisms 52 being disposed opposite to each other on the carrying portion 51, the plurality of the clamping mechanisms 52 are caused to stably mount the virtual image display apparatus 3 on the carrying portion 51.

Referring to fig. 1 and 2, in some embodiments, when the virtual image display apparatus 3 is installed in the profiling cavity, the bottom of the virtual image display apparatus 3 is attached to the inner side of the profiling cavity to detect the shape of the housing of the virtual image display apparatus 3. Specifically, the lower half part of the housing of the virtual image display device 3 may be selected as the bottom of the virtual image display device 3, and the bottom of the virtual image display device 3 is attached to the inner side surface of the profiling cavity, so that the virtual image display device 3 which does not conform to the standard housing shape cannot be stably placed in the profiling cavity, and whether the housing shape of the virtual image display device 3 conforms to the specification is checked by using the profiling cavity.

By arranging the virtual image display device 3 to be mounted in the profiling cavity, the bottom of the virtual image display device 3 is attached to the inner side surface of the profiling cavity to detect the shape of the outer shell of the virtual image display device 3, and finally the virtual image display device 3 which does not conform to the shape of the specified outer shell cannot be stably placed in the profiling cavity, so that the profiling cavity can detect whether the outer shell of the virtual image display device 3 conforms to the specification while positioning the position of the virtual image display device 3.

Optionally, a quick-dismantling structure is arranged between the bearing part 51 and the test bench 1, the quick-dismantling structure can be selected as buckles arranged on the test bench 1, the number of the buckles can be two, the bearing part 51 is placed between the two buckles, and the buckles are clamped with the bottom of the bearing part 51, so that the bearing part 51 can be quickly assembled and disassembled with the test bench 1; of course, the quick-release structure can be a positioning pin and a knob, a positioning hole is formed in the test bench 1, a through hole is formed in the bearing portion 51, the positioning pin is inserted into the positioning hole through the through hole, and the knob is mounted at one end of the positioning pin away from the test bench, so that the bearing portion 51 is quickly mounted and dismounted from the test bench 1.

Referring to fig. 1 and 2, in some embodiments, the virtual image display device further includes a controller, where the controller is electrically connected to the virtual image display device 3 and the camera 4, and is at least used to control the action of the amplifying element of the virtual image display device 3 and analyze the virtual image captured by the camera 4, and specifically, the controller may be a computer or alternatively may be a chip, a curved mirror in the HUD device of the virtual image display device 3 is an amplifying element, the controller is connected to a motor in the HUD device to control the action of the amplifying element, the amplifying element rotates to move the position of the virtual image on the reflecting member 2, and the camera 4 transmits the movement information of the position of the virtual image on the reflecting member 2 to the controller, so that the virtual step of the virtual image display device 3 can be obtained by delaying between the start of the motor of the virtual image display device 3 and the movement of the position of the virtual image on the reflecting member 2.

The controller is electrically connected with the virtual image display device 3 and the camera 4 respectively, and is at least used for controlling the action of the amplifying element of the virtual image display device 3 and analyzing the virtual image picture shot by the camera 4, and finally, the controller is enabled to analyze the action process of the action of the amplifying element and the delay between the change of the virtual image position so as to obtain the virtual walking condition of the virtual image display device.

When the device is specifically used, the virtual image display device 3 is placed in the profiling cavity of the bearing part 51, the clamping mechanism 52 is used for connecting the virtual image display device 3 with the bearing part 51, the lens of the virtual image display device 3 faces the reflecting piece 2, the virtual image display device 3 is used for projecting virtual images to the reflecting piece 2, the controller sends signals to the virtual image display device 3 so as to control the amplifying element of the virtual image display device 3 to rotate, the position of the virtual image projected on the reflecting piece 2 is changed, the camera 4 shoots virtual image position change information, the virtual image position change information is transmitted to the controller, and delay between the sent signals of the virtual image display device 3 and the virtual image position change is analyzed through software so as to obtain virtual steps of the virtual image display device 3.

It should be noted that in this document, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The foregoing is merely a specific embodiment of the disclosure to enable one skilled in the art to understand or practice the disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown and described herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (11)

1. The virtual step testing device of the virtual image display equipment is characterized by comprising a testing rack (1), a camera (4) and a reflecting piece (2);

the camera (4), the reflecting piece (2) and the virtual image display device (3) are all arranged on the test bench (1), a bearing part (51) and a clamping mechanism (52) are arranged on the test bench (1), the bearing part (51) is connected with the test bench (1), the surface of the bearing part (51) is sunken to form a profiling cavity, the profiling cavity is suitable for placing the virtual image display device (3), the clamping mechanism (52) is arranged on the bearing part (51), and the clamping mechanism (52) is suitable for compacting the virtual image display device (3);

the virtual image display device (3) is located below the reflecting piece (2), image light rays emitted by the virtual image display device (3) are reflected by the reflecting piece (2) to form virtual images, and the camera (4) and the reflecting piece (2) are arranged at intervals and are aligned with the virtual images formed by reflection of the reflecting piece (2).

2. A virtual step test arrangement of a virtual image display device according to claim 1, characterized in that the test bench (1) comprises a bench bottom plate (11), a camera support (13) and a reflector support (12), the camera support (13) being connected with one end of the bench bottom plate (11), the reflector support (12) being connected with the other end of the bench bottom plate (11), the reflector (2) being arranged at the end of the reflector support (12) remote from the bottom plate, the camera support (13) being adapted to fix the camera (4) at a preset position of an eye box area of the virtual image display device (3).

3. A virtual image display device virtual step test arrangement according to claim 2, characterized in that the reflector support (12) comprises a reflector support base and a connecting rod, the connecting rod being arranged on the reflector support base, the reflector (2) being arranged on the connecting rod, the carrier (51) being arranged on the reflector support base.

4. A virtual image display device virtual step testing apparatus as claimed in claim 3, characterized in that the test bench (1) is provided with a fixing clamp (14) for fixing the reflector (2) to the test bench (1).

5. A virtual image display device virtual step test arrangement according to claim 4, characterized in that the fixing clamp (14) comprises a bearing base (141) and a clamping member (142), the bearing base (141) being arranged on the connecting rod, the clamping member (142) being connected to the bearing base (141) for fixing the reflecting member (2) on the bearing base (141).

6. A virtual image display device virtual step test apparatus as in claim 5 wherein the bearing base (141) comprises at least two windshield bearing plates, at least two windshield bearing plates are disposed around the reflecting member (2), and the windshield bearing plates are each provided with a receiving groove, and the edge of the reflecting member (2) is clamped with the receiving groove.

7. A virtual image display device virtual step test apparatus according to claim 6, wherein the clamping member (142) comprises a fixing portion, an abutment and a locking portion, the fixing portion is connected with the bearing base (141), the abutment is rotatably connected with the fixing portion, and the locking portion is connected with the abutment and is used for driving the abutment to rotate.

8. A virtual image display device virtual step test apparatus according to claim 1, wherein the clamping mechanism (52) comprises a pressing head and a rotary lifting cylinder, the bearing part (51) is provided with the rotary lifting cylinder, one end of the rotary lifting cylinder away from the bearing part (51) is provided with the pressing head, and when the virtual image display device (3) is placed in the profiling cavity, the rotary lifting cylinder drives the pressing head to rotate and drives the pressing head to move towards a direction close to the virtual image display device (3) so as to enable the pressing head to be abutted against the virtual image display device (3).

9. A virtual image display device virtual step test apparatus according to claim 1, wherein the number of the clamping mechanisms (52) is plural, and a plurality of the clamping mechanisms (52) are oppositely disposed on the carrying portion (51).

10. A virtual step testing apparatus of a virtual image display device according to claim 1, characterized in that when the virtual image display device (3) is mounted in the profiling cavity, the bottom of the virtual image display device (3) is attached to the inner side of the profiling cavity to detect the shape of the casing of the virtual image display device (3).

11. A virtual-step testing apparatus of a virtual-image display device according to claim 1, characterized by further comprising a controller electrically connected to the virtual-image display device (3) and the camera (4), respectively, for controlling at least the actions of the amplifying element of the virtual-image display device (3) and for analyzing the picture of the virtual image taken by the camera (4).

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