Light-machine testing system, medium and method for projector

Abstract

The invention relates to the technical field of projectors, in particular to a projector ray machine test system, medium and method, the projector ray machine test system comprises a test darkroom, and a projector ray machine, a preheating transmission machine and a test curtain plate which are arranged in the test darkroom, the projector ray machine emits light rays and projects the light rays onto the test curtain plate, and the test curtain plate is provided with a brightness meter. The brightness meter is used for detecting the projection uniformity of light rays emitted by the projector light machine, and the preheating transmission machine is used for supplying power to the projector light machine and starting up for preheating; according to the projector ray machine test system, the brightness uniformity of the projector ray machine can be detected, and the distance between the test screen plate and the projector ray machine is changed through the arranged track driver, so that the brightness uniformity of the projector ray machine under different projection distances is detected.

Description

Technical Field

[0001] The present invention relates to the technical field of projectors, and in particular to an optical-mechanical testing system, medium and method for projectors. Background Art

[0002] The projector optical engine is an optical and mechanical integrated device that converts input electrical signals into visible light images and projects them onto the screen. It includes a light source, an optical lens group, and a light modulation device. The performance of the optical engine directly affects indicators such as the clarity and brightness uniformity of the projector image. In actual production, if the installation position of the light source is not accurately calibrated during the assembly of the optical engine and deviates from its optimal design position, the emission angle and distribution of the light will change. For example, if the light source deviates from the center position, the light may be more concentrated on one side of the screen, resulting in an uneven brightness on that side and low brightness on the other side. Therefore, it is very important to test the brightness uniformity of the projector optical engine.

[0003] The traditional way of testing the brightness uniformity of projector optical machines is to manually turn on the machine and measure the projection. This is not only inefficient, but also lacks testing at different projection distances and is not comprehensive enough. When high-pressure mercury lamps, xenon lamps and other projector optical machines are just turned on, their filaments need a heating process to reach a stable light-emitting state; even LED and laser light sources need to be preheated so that the physical and chemical processes inside the chip gradually stabilize and the light-emitting efficiency gradually improves. In traditional technology, manual direct turning on and measuring lacks a preheating process, and the accuracy of the test data is not high. Summary of the invention

[0004] The object of the present invention is to provide an optical-mechanical testing system, medium and method for a projector to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an optical machine testing system for a projector, comprising a test darkroom and a projector optical machine, a preheating conveyor and a test screen panel arranged in the test darkroom, wherein the projector optical machine emits light to project onto the test screen panel, a brightness meter is arranged on the test screen panel, and the brightness meter is used to detect the projection uniformity of the light emitted by the projector optical machine, the preheating conveyor supplies power to the projector optical machine and starts it for preheating, and the preheating conveyor can transport the projector optical machine to a designated position in the test darkroom.

[0006] The luminance meters are respectively arranged at the middle and four corners of the test screen.

[0007] The luminance meters are evenly distributed on the test screen board in a linear array.

[0008] A track driver is provided below the test screen, and the track driver is used to drive the test screen to move, thereby changing the distance between the test screen and the projector optical machine, and further being able to test the projection uniformity of light emitted by the projector optical machine at different projection distances.

[0009] The preheating conveyor includes a conveying guide shell, a detection slot, a light shielding baffle and a conveyor belt. The detection slot is provided on the conveying guide shell. The light shielding baffle is movably arranged in the detection slot. When the light shielding baffle moves down, it can block the light in the conveying guide shell. The conveyor belt passes through the interior of the conveying guide shell. A positioning angle is fixedly provided on the surface of the conveyor belt. A projector optical machine is limitedly provided in the positioning angle. The projector optical machine is positioned by the positioning angle. A power supply line row is provided on the surface of the conveyor belt. The power supply line row corresponds to the position and number of the positioning angle one by one. The power supply line row is inserted into the projector optical machine to supply power to the projector optical machine. A conductive belt is embedded on the inner surface of the conveyor belt. The conductive belt is conductively connected to the power supply line row. A dynamic contact bridge is provided on the outside of the conductive belt. The dynamic contact bridge contacts and supplies power to the conductive belt.

[0010] A fixing screw sleeve is fixedly provided at the lower part of the dynamic contact bridge, a driving screw rod is spirally installed in the fixing screw sleeve, a servo motor is fixedly provided on the transmission guide shell, the servo motor is used to drive the driving screw rod to rotate, so that the dynamic contact bridge can move along the length direction of the transmission belt, a limited position vertical hole is provided through the upper and lower parts of the dynamic contact bridge, a power supply contact column is provided in the limited position vertical hole, the upper part of the power supply contact column is in friction contact with the conductive belt, and the conductive belt is powered by the power supply contact column, a support spring is provided below the power supply contact column, a split support ring is provided below the support spring, a rubber hollow ring is provided below the split support ring, a limited position bottom ring is provided below the rubber hollow ring, the limited position bottom ring is fixedly installed with the inner wall surface of the limited position vertical hole, a connecting air path is provided in the dynamic contact bridge, and the connecting air path is connected with the rubber hollow ring.

[0011] A supporting side arm is fixedly provided on the surface of the transmission guide shell, a track slot is provided in the supporting side arm, the dynamic contact bridge is slidably limitedly installed with the track slot, an air pressure common pipe is provided in the track slot, an internal cylinder body is fixedly provided on the inner surface of the transmission guide shell, a piston body is provided in the internal cylinder body, one end of the air pressure common pipe is fixedly installed with the piston body, and the other end is fixedly installed with the dynamic contact bridge, the connecting air path is connected with the inner cavity of the internal cylinder body through the air pressure common pipe, a one-way air intake valve is provided at the end of the internal cylinder body, a beam flow hole is penetrated through the end of the internal cylinder body, and the one-way air intake valve allows the airflow to flow unidirectionally from the outside of the internal cylinder body to the internal cylinder body.

[0012] An infrared power-on module and an infrared power-off module are arranged on the surface of the transmission guide shell, the infrared power-on module is located on one side of the detection slot, and the infrared power-off module is located on the other side of the detection slot, the infrared power-on module is used to remotely control the power-on of the projector, and the infrared power-off module is used to remotely control the power-off of the projector, both ends of the transmission guide shell are provided with mounting eaves, the transmission guide shell is fixedly installed with the test darkroom through the mounting eaves, a cantilevered outer frame is fixedly arranged on the transmission guide shell, a telescopic control cylinder is arranged in the cantilevered outer frame, the telescopic control cylinder is used to control the lifting and lowering of the shading partition, a support roller is arranged on the rotating support in the support side arm, and the support roller supports and drives the transmission belt.

[0013] The testing method of the optical machine testing system of the projector includes a storage and a processor; firstly, the optical machine of the projector is preheated by a preheating transmission machine and transmitted to a designated position in a test darkroom; the optical machine of the projector emits light to project onto a test screen, and the brightness is detected by a brightness meter; the brightness meter inputs the detection data into the storage, and the processor calculates the difference between the minimum reading and the maximum reading of different brightness meters to obtain the brightness difference; the movement of the test screen is controlled by a track driver, the distance between the test screen and the optical machine of the projector is changed, and the projection uniformity of the light emitted by the optical machine of the projector at different projection distances is detected.

[0014] A computer readable medium stores a computer program, which, when executed by a processor, implements a test method for an optical-mechanical test system of the projector.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The optical-mechanical testing system of the projector of the present invention can detect the brightness uniformity of the projector optical-mechanical device, and change the distance between the test screen and the projector optical-mechanical device by means of a set track driver, thereby realizing the detection of the brightness uniformity of the projector optical-mechanical device at different projection distances, making the test more comprehensive.

[0017] The preheating conveyor in the present invention can transport the projector optical machine to a designated position in the test darkroom for measurement, and can also realize early start-up preheating, so that the projector optical machine is in a stable working state after arriving at the test position, thereby improving the accuracy of the test.

[0018] When the projector optical engine is turned on, since the current is greater at the moment of startup, the dynamic contact bridge is set to move with the transmission belt, so that the transmission belt and the dynamic contact bridge can be relatively static, thereby improving the stability of current conduction of the power supply contact column and the conductive belt when the projector optical engine is turned on.

[0019] Through the coordination of the hollow rubber ring and the internal cylinder, the dynamic contact bridge can actively increase the contact pressure between the power supply contact column and the conductive belt while following the movement of the transmission belt to achieve a relative static effect. At this time, since the two are relatively static, the pressure increase will not increase the degree of wear, but can greatly improve the stability of current conduction. When the dynamic contact bridge returns to reset, the contact pressure between the power supply contact column and the conductive belt is automatically restored to avoid excessive wear caused by high pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Schematic diagram of the optical-mechanical testing system of the projector of the present invention.

[0021] Figure 2 This is a schematic diagram of the structure of the preheating conveyor of the present invention.

[0022] Figure 3 This is the front view of the preheating conveyor structure of the present invention.

[0023] Figure 4 This is a schematic diagram of the preheating conveyor structure of the present invention from another angle.

[0024] Figure 5 It is a schematic diagram of the internal structure of the preheating conveyor of the present invention.

[0025] Figure 6 It is a three-dimensional half-section schematic diagram of the dynamic contact bridge of the preheating conveyor of the present invention.

[0026] Figure 7 For the present invention Figure 6 Enlarged view of point A in the middle.

[0027] Figure 8 It is a three-dimensional half-section schematic diagram of the supporting side arm of the preheating conveyor of the present invention.

[0028] Fig. 9 For the present invention Figure 8 Enlarged view of point B in the middle.

[0029] Fig.10 For the present invention Fig. 9 Enlarged view of point C in the middle.

[0030] In the figure: 1. Transmission guide shell; 2. Detection slot; 3. Shading partition; 4. Transmission belt; 5. Positioning angle; 6. Projector optical machine; 7. Power supply line row; 8. Conductive belt; 9. Dynamic contact bridge; 901. Fixed screw sleeve; 902. Drive screw rod; 903. Servo motor; 904. Limiting vertical hole; 905. Power supply contact column; 906. Support spring; 907. Split support ring; 908. Rubber hollow ring ; 909, limiting bottom ring; 910, connecting air path; 911, supporting side arm; 912, track slot; 913, air pressure common pipe; 914, internal cylinder; 915, piston body; 916, one-way air inlet valve; 917, beam flow hole; 101, infrared start-up module; 102, infrared shutdown module; 103, installation eaves; 301, cantilevered outer frame; 302, telescopic control cylinder; 401, supporting roller shaft. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] See also Figures 1 to 10 The present invention provides a technical solution: an optical-mechanical testing system for a projector, such as Figure 1 As shown in the figure, it includes a test darkroom and a projector optical machine, a preheating conveyor and a test screen panel arranged in the test darkroom. The projector optical machine emits light to project onto the test screen panel. A brightness meter is arranged on the test screen panel. The brightness meter is used to detect the projection uniformity of the light emitted by the projector optical machine. The preheating conveyor supplies power to the projector optical machine and starts it for preheating. The preheating conveyor can transport the projector optical machine to a designated position in the test darkroom.

[0033] The brightness meters are respectively set in the middle and four corners of the test screen. Through this structural setting, the cost of the test system can be reduced, and the brightness of the four key corners where dark corners are prone to appear can be compared with the brightness in the middle. However, it is not possible to test the projection uniformity of the light emitted by the projector optical machine at different projection distances.

[0034] The luminance meters are evenly distributed in a linear array on the test screen. By evenly setting the luminance meters, the test accuracy can be increased, and the projection uniformity of the light emitted by the projector optical machine at different projection distances can be tested.

[0035] A track driver is provided below the test screen panel, and the track driver is used to drive the test screen panel to move, thereby changing the distance between the test screen panel and the projector optical machine, and then being able to test the projection uniformity of light emitted by the projector optical machine at different projection distances; the track driver includes a limit track, a slider structure and a driving module, and the driving module controls the slider structure to run on the limit track, so that the position of the test screen panel can be changed.

[0036] like Figure 2 As shown in, the preheating conveyor includes a conveying guide shell 1, a detection slot 2, a shading partition 3 and a conveying belt 4. The detection slot 2 is opened on the conveying guide shell 1, and the shading partition 3 is movably arranged in the detection slot 2. When the shading partition 3 moves down, it can block the light in the conveying guide shell 1. The conveying belt 4 passes through the interior of the conveying guide shell 1. The surface of the conveying belt 4 is fixedly provided with a positioning angle 5, and a projector optical machine 6 is limitedly provided in the positioning angle 5. The projector optical machine 6 is positioned by the positioning angle 5. The surface of the conveying belt 4 is provided with a power supply line 7. The power supply line 7 corresponds to the position and number of the positioning angle 5. The power supply line 7 is inserted into the projector optical machine 6 to supply power to the projector optical machine 6. The inner surface of the conveying belt 4 is embedded with a conductive belt 8. The conductive belt 8 is conductively connected to the power supply line 7. The outside of the conductive belt 8 is provided with a dynamic contact bridge 9. The dynamic contact bridge 9 contacts the conductive belt 8 for power supply. The dynamic contact bridge 9 can be made of insulating material.

[0037] A fixed screw sleeve 901 is fixedly provided at the lower part of the dynamic contact bridge 9, and a driving screw rod 902 is installed in the fixed screw sleeve 901 in a spiral fit. A servo motor 903 is fixedly provided on the transmission guide shell 1, and the servo motor 903 is used to drive the driving screw rod 902 to rotate, so that the dynamic contact bridge 9 can move along the length direction of the transmission belt 4. A limited vertical hole 904 is provided in the dynamic contact bridge 9 from top to bottom, and a power supply contact column 905 is provided in the limited vertical hole 904. The upper part of the power supply contact column 905 is in friction contact with the conductive belt 8. The conductive belt 8 is powered by the power supply contact column 905, a support spring 906 is arranged below the power supply contact column 905, a split support ring 907 is arranged below the support spring 906, a rubber hollow ring 908 is arranged below the split support ring 907, a limiting bottom ring 909 is arranged below the rubber hollow ring 908, the limiting bottom ring 909 is fixedly installed on the inner wall surface of the limiting vertical hole 904, and a connecting air path 910 is opened in the dynamic contact bridge 9, and the connecting air path 910 is connected with the rubber hollow ring 908.

[0038] A supporting side arm 911 is fixedly provided on the surface of the transmission guide shell 1, a track slot 912 is opened in the supporting side arm 911, the dynamic contact bridge 9 is slidably limitedly installed with the track slot 912, an air pressure common pipe 913 is provided in the track slot 912, an internal cylinder body 914 is fixedly provided on the inner surface of the transmission guide shell 1, a piston body 915 is provided in the internal cylinder body 914, one end of the air pressure common pipe 913 is fixedly installed with the piston body 915, and the other end is fixedly installed with the dynamic contact bridge 9, the connecting air path 910 is connected with the inner cavity of the internal cylinder body 914 through the air pressure common pipe 913, a one-way air intake valve 916 is provided at the end of the internal cylinder body 914, a beam flow hole 917 is opened through the end of the internal cylinder body 914, and the one-way air intake valve 916 allows the air flow to flow from the outside of the internal cylinder body 914 to the internal cylinder body 914 in one direction.

[0039] An infrared power-on module 101 and an infrared power-off module 102 are provided on the surface of the transmission guide shell 1. The infrared power-on module 101 is located on one side of the detection slot 2, and the infrared power-off module 102 is located on the other side of the detection slot 2. The infrared power-on module 101 is used to remotely control the power-on of the projector optical machine 6, and the infrared power-off module 102 is used to remotely control the power-off of the projector optical machine 6. Installation eaves 103 are provided at both ends of the transmission guide shell 1. The transmission guide shell 1 is fixedly installed with the test darkroom through the installation eaves 103. A cantilevered outer frame 301 is fixedly provided on the transmission guide shell 1. A telescopic control cylinder 302 is provided in the cantilevered outer frame 301. The telescopic control cylinder 302 is used to control the lifting and lowering of the shading partition 3. A support roller 401 is provided in the rotating support of the supporting side arm 911, and the support roller 401 supports and drives the transmission belt 4.

[0040] The testing method of the optical machine testing system of the projector includes a storage and a processor; firstly, the optical machine of the projector is preheated by a preheating transmission machine and transmitted to a designated position in a test darkroom; the optical machine of the projector emits light to project onto a test screen, and the brightness is detected by a brightness meter; the brightness meter inputs the detection data into the storage, and the processor calculates the difference between the minimum reading and the maximum reading of different brightness meters to obtain the brightness difference; the movement of the test screen is controlled by a track driver, the distance between the test screen and the optical machine of the projector is changed, and the projection uniformity of the light emitted by the optical machine of the projector at different projection distances is detected.

[0041] A computer readable medium stores a computer program, which implements a test method of the optical-mechanical test system of the projector when executed by a processor.

[0042] When the preheating conveyor in the present invention is used, it is installed in the test darkroom through the installation eaves 103, the projector optical machine 6 is placed in the positioning angle 5 for positioning, and the power supply line row 7 is inserted into the projector optical machine 6 to power the projector optical machine 6. As the conveyor belt 4 is conveyed, when the projector optical machine 6 passes through the infrared power-on module 101, the infrared power-on module 101 performs remote control power-on. At this time, the projector optical machine 6 is powered on and preheated during the transmission process. When the projector optical machine 6 reaches the position of the detection slot 2, the preheating is completed, and the shading partition 3 is controlled to move down to block to avoid interference from other projector optical machines 6 in the preheating state. At this time, the conveyor belt 4 is paused. The projector optical machine 6 automatically focuses and projects onto the test screen board, and the brightness uniformity is detected by the brightness meter. After the detection is completed, the shading partition 3 moves up and opens, and the projector optical machine 6 continues to be conveyed through the infrared shutdown module 102 for remote shutdown, and finally transmitted out of the test darkroom.

[0043] like Figure 7 As shown in , the dynamic contact bridge 9 is made of insulating material, the power supply contact column 905 is connected to the external power supply wire, and the power supply contact column 905 supplies power to the conductive strip 8 by contacting the conductive strip 8, so that the power supply line row 7 is energized.

[0044] In the above process, at the moment when the projector optical machine 6 is turned on by the infrared power-on module 101, the light source will undergo a rapid transition process from a cold state to a normal light-emitting state due to the power-on moment; in this process, the power supply circuit needs to provide a relatively large current to prompt the light source to reach normal brightness and working state as soon as possible, which leads to an increase in power at the moment of power on; in the process of power increase, the dynamic contact bridge 9 moves synchronously with the conveyor belt 4, so that the power supply contact column 905 and the conductive belt 8 are relatively static, thereby ensuring contact stability when the current is large. When the projector optical machine 6 reaches the test position and the conveyor belt 4 is static, the dynamic contact bridge 9 slowly resets.

[0045] During the synchronous movement of the dynamic contact bridge 9 following the conveyor belt 4, Fig. 9 As shown in , the dynamic contact bridge 9 drives the air pressure common pipe 913 and the piston body 915 to move. At this time, the piston body 915 is squeezed and moved to the right in the internal cylinder 914, and the gas is discharged through the beam flow hole 917. However, due to the small aperture of the beam flow hole 917, the internal cylinder 914 is in a positive pressure state at this time. The positive pressure enters the rubber hollow ring 908 through the connecting air path 910, causing the rubber hollow ring 908 to expand and increase the contact pressure between the power supply contact column 905 and the conductive belt 8. At this time, since the power supply contact column 905 and the conductive belt 8 are relatively static, the increase in pressure will improve the stability of current transmission and will not increase wear. When the dynamic contact bridge 9 moves in the reverse reset, the gas enters the internal cylinder 914 through the one-way air inlet valve 916, which will not cause a large fluctuation in the internal pressure of the internal cylinder 914.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An optical and mechanical test system for a projector, comprising a test darkroom, a projector optical machine, a preheating transmission machine and a test screen panel arranged in the test darkroom, characterized in that: The projector optical machine emits light to project onto a test screen, and a brightness meter is provided on the test screen to detect the uniformity of the light projection emitted by the projector optical machine. The preheating transmission machine supplies power to the projector optical machine and starts it for preheating, and the preheating transmission machine can transport the projector optical machine to a designated position in a test darkroom.

2. The optical-mechanical testing system for a projector according to claim 1, characterized in that: The luminance meters are respectively arranged at the middle and four corners of the test screen.

3. The optical-mechanical testing system for a projector according to claim 1, characterized in that: The luminance meters are evenly distributed on the test screen board in a linear array.

4. The optical-mechanical testing system for a projector according to claim 3, characterized in that: A track driver is provided below the test screen, and the track driver is used to drive the test screen to move, thereby changing the distance between the test screen and the projector optical machine, and further being able to test the projection uniformity of light emitted by the projector optical machine at different projection distances.

5. The optical-mechanical testing system for a projector according to claim 1, characterized in that: The preheating conveyor comprises a conveying guide shell (1), a detection slot (2), a shading baffle (3) and a conveying belt (4); the detection slot (2) is arranged on the conveying guide shell (1); the shading baffle (3) is arranged in the detection slot (2) in a lifting and movable manner; when the shading baffle (3) moves downward, it can block the light in the conveying guide shell (1); the conveying belt (4) passes through the interior of the conveying guide shell (1); a positioning angle (5) is fixedly arranged on the surface of the conveying belt (4); a projector optical machine (6) is arranged in the positioning angle (5) to limit the position; and the positioning angle is used to control the position of the conveying belt (4). (5) Positioning the projector optical machine (6), the surface of the transmission belt (4) is provided with a power supply line row (7), the position and number of the power supply line row (7) correspond to the positioning angle (5), the power supply line row (7) is inserted into the projector optical machine (6) to supply power to the projector optical machine (6), the inner surface of the transmission belt (4) is embedded with a conductive belt (8), the conductive belt (8) is conductively connected to the power supply line row (7), the outside of the conductive belt (8) is provided with a dynamic contact bridge (9), the dynamic contact bridge (9) contacts the conductive belt (8) for power supply.

6. The optical-mechanical testing system for a projector according to claim 5, characterized in that: A fixed screw sleeve (901) is fixedly provided at the lower part of the dynamic contact bridge (9), a driving screw rod (902) is screw-fittedly installed in the fixed screw sleeve (901), a servo motor (903) is fixedly provided on the transmission guide shell (1), the servo motor (903) is used to drive the driving screw rod (902) to rotate, so that the dynamic contact bridge (9) can move along the length direction of the transmission belt (4), and a limiting vertical hole (904) is provided through the upper and lower parts of the dynamic contact bridge (9), a power supply contact column (905) is provided in the limiting vertical hole (904), and the upper part of the power supply contact column (905) is in frictional contact with the conductive belt (8), The conductive belt (8) is powered through a power supply contact column (905); a support spring (906) is provided below the power supply contact column (905); a split support ring (907) is provided below the support spring (906); a rubber hollow ring (908) is provided below the split support ring (907); a limit bottom ring (909) is provided below the rubber hollow ring (908); the limit bottom ring (909) is fixedly mounted on the inner wall surface of the limit vertical hole (904); a connecting air path (910) is provided in the dynamic contact bridge (9); the connecting air path (910) is connected to the rubber hollow ring (908).

7. The optical-mechanical testing system for a projector according to claim 6, characterized in that: A support side arm (911) is fixedly provided on the surface of the transmission guide shell (1), a track slot (912) is provided in the support side arm (911), the dynamic contact bridge (9) is slidably limitedly installed with the track slot (912), a gas pressure common pipe (913) is provided in the track slot (912), an internal cylinder body (914) is fixedly provided on the inner surface of the transmission guide shell (1), a piston body (915) is provided in the internal cylinder body (914), and the gas pressure common pipe (913) One end of the piston body (915) is fixedly mounted, and the other end is fixedly mounted on the dynamic contact bridge (9); the communicating air path (910) is connected to the inner cavity of the internal cylinder body (914) through the air pressure common pipe (913); a one-way air intake valve (916) is provided at the end of the internal cylinder body (914); a beam flow hole (917) is provided through the end of the internal cylinder body (914); the one-way air intake valve (916) allows airflow to flow from the outside of the internal cylinder body (914) to the internal cylinder body (914) in one direction.

8. The optical-mechanical testing system for a projector according to claim 7, characterized in that: The surface of the transmission guide shell (1) is provided with an infrared power-on module (101) and an infrared power-off module (102); the infrared power-on module (101) is located on one side of the detection slot (2), and the infrared power-off module (102) is located on the other side of the detection slot (2); the infrared power-on module (101) is used to remotely control the power on of the projector optical machine (6), and the infrared power-off module (102) is used to remotely control the power off of the projector optical machine (6); and both ends of the transmission guide shell (1) are provided with mounting eaves. (103), the transmission guide shell (1) is fixedly installed with the test darkroom through the installation eaves (103), and a cantilevered outer frame (301) is fixedly arranged on the transmission guide shell (1), and a telescopic control cylinder (302) is arranged in the cantilevered outer frame (301), and the telescopic control cylinder (302) is used to control the lifting and lowering of the shading partition (3), and a support roller (401) is rotatably supported in the support side arm (911), and the support roller (401) supports and drives the transmission belt (4).

9. The testing method of the optical-mechanical testing system of a projector according to any one of claims 1 to 8, characterized in that: It includes a storage device and a processor; firstly, the projector optical machine is preheated by a preheating transmission machine and transmitted to a designated position in a test darkroom; the projector optical machine emits light to project onto a test screen, and the brightness is detected by a brightness meter; the brightness meter inputs the detection data into the storage device, and the processor calculates the difference between the minimum reading and the maximum reading of different brightness meters to obtain the brightness difference; the test screen is controlled to move by a track driver, the distance between the test screen and the projector optical machine is changed, and the projection uniformity of the light emitted by the projector optical machine at different projection distances is detected.

10. A computer readable medium, characterized in that: A computer program is stored thereon, and when the computer program is executed by a processor, the test method of the optical-mechanical test system of the projector as claimed in claim 9 is implemented.

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