Optical engine test system, media and method for projectors

Abstract

The present application relates to the technical field of projectors, in particular to a light machine testing system, medium and method for projectors, comprising a testing darkroom, a projector light machine, a preheating transmission machine and a testing curtain plate arranged in the testing darkroom, the projector light machine projects light onto the testing curtain plate, a luminance meter is arranged on the testing curtain plate, the luminance meter is used to detect the uniformity of the light projected by the projector light machine, and the preheating transmission machine supplies power to the projector light machine and preheats the projector light machine; the light machine testing system for projectors can detect the brightness uniformity of the projector light machine, and the distance between the testing curtain plate and the projector light machine can be changed through the track driver, so that the brightness uniformity of the projector light machine under different projection distances can be detected.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of projectors, in particular to a light engine testing system, medium and method for projectors. BACKGROUND

[0002] A projector light engine is an optical and mechanical integrated device that converts an input electrical signal into a visible light image and projects it onto a screen, which includes a light source, optical lenses, and light modulation devices, etc. The performance of the light engine directly affects 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 light engine and deviates from the designed optimal position, the emission angle and distribution of the light will change, for example, if the light source deviates from the center position, more light may be concentrated on one side of the screen, causing 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 light engine.

[0003] In the traditional brightness uniformity test of the projector light engine, the projection measurement is performed manually by directly turning on the projector, which is not only low in efficiency, but also lacks testing at different projection distances, and is not comprehensive. Moreover, for high-pressure mercury lamps, xenon lamps and other projector light engines, the filaments need a heating process to reach a stable light-emitting state. Even for LED and laser light sources, preheating is needed to gradually stabilize the physical and chemical processes inside the chip and gradually improve the light-emitting efficiency. However, in the traditional manual measurement by directly turning on the projector, the preheating process is lacking, and the accuracy of the detection data is not high. SUMMARY

[0004] The present application aims to provide a light engine testing system, medium and method for projectors to solve the problems raised in the background.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solution: a light engine testing system for projectors, comprising a test darkroom and a projector light engine, a preheating conveyor and a test curtain board arranged in the test darkroom. The projector light engine projects light onto the test curtain board. A luminance meter is arranged on the test curtain board to detect the uniformity of the light projected by the projector light engine. The preheating conveyor supplies power to the projector light engine and preheats it. The preheating conveyor can convey the projector light engine to a designated position in the test darkroom.

[0006] The luminance meter is arranged at the middle and four corners of the test curtain board, respectively.

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

[0008] The lower part of the test curtain plate is provided with a track driver, which is used to drive the test curtain plate to move, so as to change the distance between the test curtain plate and the projector light machine, and then the light projection uniformity of the projector light machine under different projection distances can be tested.

[0009] The preheating conveyor comprises a transmission guide shell, a detection slot, a light shielding partition and a transmission belt, the detection slot is opened on the transmission guide shell, the light shielding partition is movably arranged in the detection slot, the light shielding partition can shield the light in the transmission guide shell when the light shielding partition moves downward, the transmission belt passes through the inside of the transmission guide shell, the surface of the transmission belt is fixedly provided with a positioning corner, the projector light machine is limitedly arranged in the positioning corner, the projector light machine is positioned by the positioning corner, the surface of the transmission belt is provided with a power supply wire row, the power supply wire row corresponds to the position and number of the positioning corner in a one-to-one manner, the power supply wire row inserted into the projector light machine can supply power to the projector light machine, the inside surface of the transmission belt is embedded with a conductive strip, the conductive strip is in conductive connection with the power supply wire row, and the outside of the conductive strip is provided with a dynamic contact bridge.

[0010] The lower part of the dynamic contact bridge is fixedly provided with a fixed screw sleeve, a driving screw is spirally and matchingly installed in the fixed screw sleeve, a servo motor is fixedly arranged on the transmission guide shell, and the servo motor is used to drive the driving screw to rotate, so that the dynamic contact bridge can move along the length direction of the transmission belt, a limiting vertical hole is vertically and throughly arranged in the dynamic contact bridge, a power supply contact column is arranged in the limiting vertical hole, the upper part of the power supply contact column is in frictional contact with the conductive strip, the conductive strip is powered by the power supply contact column, a supporting spring is arranged below the power supply contact column, a split supporting ring is arranged below the supporting spring, a rubber hollow ring is arranged below the split supporting ring, a limiting bottom ring is arranged below the rubber hollow ring, and the limiting bottom ring is fixedly installed on the inner wall surface of the limiting vertical hole, and a communication air channel is arranged in the dynamic contact bridge and in communication with the rubber hollow ring.

[0011] The surface of the transmission guide shell is fixedly provided with a supporting side arm, an orbit clamping groove is arranged in the supporting side arm, the dynamic contact bridge is slidably and limitingly installed in the orbit clamping groove, and an air pressure common pipe is arranged in the orbit clamping groove, the inside surface of the transmission guide shell is fixedly provided with an internal cylinder body, a piston body is arranged in the internal cylinder body, one end of the air pressure common pipe is fixedly installed on the piston body, and the other end is fixedly installed on the dynamic contact bridge, the communication air channel is in communication with the inner cavity of the internal cylinder body through the air pressure common pipe, a one-way air inlet valve is arranged at the end of the internal cylinder body, a beam passing hole is vertically and throughly arranged at the end of the internal cylinder body, and the one-way air inlet valve enables the air flow to flow into the internal cylinder body from the outside of the internal cylinder body in one direction.

[0012] The surface of the transmission guide shell is provided with an infrared start module and an infrared shutdown module, the infrared start module is located on one side of the detection groove, the infrared shutdown module is located on the other side of the detection groove, the infrared start module is used for remote control of the projector light machine start, the infrared shutdown module is used for remote control of the projector light machine shutdown, 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 for controlling the lifting of the light shielding baffle, a support roller shaft is rotatably arranged in the support side arm, and the support roller shaft is used for supporting and driving the transmission belt.

[0013] The test method of the projector light machine test system comprises a storage and a processor; first, the projector light machine is preheated by the preheating conveyor, and is transmitted to a specified position of the test darkroom; the projector light machine projects light onto the test curtain board, and the brightness is detected by the brightness meter; the detection data of the brightness meter is input 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 test curtain board is moved by the track driver to change the distance between the test curtain board and the projector light machine, and the uniformity of the light projected by the projector light machine under different projection distances is detected.

[0014] A computer readable medium has a computer program stored thereon, and the computer program is executed by a processor to implement the test method of the projector light machine test system.

[0015] Compared with the prior art, the projector light machine test system has the following beneficial effects:

[0016] The projector light machine test system can detect the brightness uniformity of the projector light machine, and change the distance between the test curtain board and the projector light machine by the track driver to detect the brightness uniformity of the projector light machine under different projection distances, so that the test is more comprehensive.

[0017] The preheating conveyor can convey the projector light machine to the specified position of the test darkroom for measurement, and can also preheat the projector light machine in advance, so that the projector light machine is in a stable working state when it reaches the test position, improving the accuracy of the test.

[0018] When the projector light machine is started, the dynamic contact bridge moves with the transmission belt to realize the relative static effect of the transmission belt and the dynamic contact bridge, and improve the stability of the current conduction of the power supply contact column and the conductive belt at the start moment of the projector light machine.

[0019] The hollow rubber ring and internal cylinder ensure that the dynamic contact bridge remains relatively stationary as it follows the conveyor belt, while also actively increasing the contact pressure between the power supply contact post and the conductive belt. Since both are relatively stationary, the increased pressure doesn't increase wear, but significantly improves the stability of current conduction. When the dynamic contact bridge returns to its original position, the contact pressure between the power supply contact post and the conductive belt is automatically restored, preventing excessive wear caused by high pressure. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0021] Figure 2 This is a structural diagram 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 from another angle of the present invention.

[0024] Figure 5 This 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] Figure 9 For the present invention Figure 8 Enlarged view of point B in the middle.

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

[0030] Figure: 1, transmission guide housing; 2, detection slot; 3, light shielding partition; 4, transmission belt; 5, positioning angle; 6, projector optical machine; 7, power supply line bar; 8, conductive belt; 9, dynamic contact bridge; 901, fixing screw; 902, driving screw; 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 power on module; 102, infrared power off module; 103, installation eaves; 301, cantilevered outer frame; 302, telescopic control cylinder; 401, support roller. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts 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 light machine, a preheating conveyor and a test screen panel arranged in the test darkroom. The projector light machine emits light and projects it onto the test screen panel. The test screen panel is provided with a luminance meter. The luminance meter is used to detect the uniformity of the light projection emitted by the projector light machine. The preheating conveyor supplies power to the projector light machine and starts it for preheating. The preheating conveyor can transport the projector light machine to a designated position in the test darkroom.

[0033] The luminance meters are set in the middle and four corners of the test screen. This structural setting can reduce the cost of the test system and compare the brightness of the key four corners where dark corners are prone to appear with the brightness of 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] The lower part of the test curtain plate is provided with a track driver for driving the test curtain plate to move, so as to change the distance between the test curtain plate and the projector light machine, and then the light projection uniformity of the projector light machine under different projection distances can be tested; the track driver comprises a limiting track, a slider structure and a driving module, the slider structure is controlled to run on the limiting track through the driving module, so that the position of the test curtain plate can be changed.

[0036] As shown in Figure 2 The preheating conveyor comprises a transmission guide shell 1, a detection slot 2, a light shielding partition plate 3 and a transmission belt 4, the detection slot 2 is opened in the transmission guide shell 1, the light shielding partition plate 3 is movably arranged in the detection slot 2, the light shielding partition plate 3 can shield the light in the transmission guide shell 1 when it moves downward, the transmission belt 4 passes through the inside of the transmission guide shell 1, the surface of the transmission belt 4 is fixedly provided with a positioning corner 5, the projector light machine 6 is limitedly arranged in the positioning corner 5, the projector light machine 6 is positioned through the positioning corner 5, the surface of the transmission belt 4 is provided with a power supply wire row 7, the power supply wire row 7 corresponds to the position and number of the positioning corner 5 one by one, the power supply wire row 7 inserted into the projector light machine 6 can supply power to the projector light machine 6, the inside surface of the transmission belt 4 is embedded with a conductive belt 8, the conductive belt 8 is conductively connected with the power supply wire row 7, the outside of the conductive belt 8 is provided with a dynamic contact bridge 9, the dynamic contact bridge 9 contacts and supplies power to the conductive belt 8, and the dynamic contact bridge 9 can be made of insulating material.

[0037] The lower part of the dynamic contact bridge 9 is fixedly provided with a fixed screw sleeve 901, a driving lead screw 902 is screwedly installed in the fixed screw sleeve 901, a servo motor 903 is fixedly arranged on the transmission guide shell 1, the servo motor 903 is used for driving the driving lead screw 902 to rotate, so that the dynamic contact bridge 9 can move along the length direction of the transmission belt 4, a limiting vertical hole 904 is vertically and penetratively arranged in the dynamic contact bridge 9, a power supply contact column 905 is arranged in the limiting vertical hole 904, the upper part of the power supply contact column 905 is in frictional contact with the conductive belt 8, the conductive belt 8 is supplied with power through the power supply contact column 905, a supporting spring 906 is arranged below the power supply contact column 905, a split supporting ring 907 is arranged below the supporting spring 906, a rubber hollow ring 908 is arranged below the split supporting ring 907, and a limiting bottom ring 909 is arranged below the rubber hollow ring 908, the limiting bottom ring 909 is fixedly installed with the inner wall surface of the limiting vertical hole 904, a communication air channel 910 is arranged in the dynamic contact bridge 9, and the communication air channel 910 is in communication with the rubber hollow ring 908.

[0038] The surface of the transmission guide shell 1 is fixedly provided with a support side arm 911, an orbit clamping groove 912 is formed in the support side arm 911, the dynamic touch bridge 9 is slidingly and limitingly installed in the orbit clamping groove 912, the orbit clamping groove 912 is provided with a gas pressure common pipe 913, the inner side surface of the transmission guide shell 1 is fixedly provided with an internal cylinder body 914, the internal cylinder body 914 is provided with a piston body 915, one end of the gas pressure common pipe 913 is fixedly installed with the piston body 915, the other end is fixedly installed with the dynamic touch bridge 9, the communication gas path 910 is communicated with the inner cavity of the internal cylinder body 914 through the gas pressure common pipe 913, the end of the internal cylinder body 914 is provided with a one-way air inlet valve 916, the end of the internal cylinder body 914 is provided with a beam through hole 917, and the one-way air inlet valve 916 enables the gas flow to flow from the outside of the internal cylinder body 914 to the inside of the internal cylinder body 914 in one direction.

[0039] The surface of the transmission guide shell 1 is provided with an infrared start module 101 and an infrared shutdown module 102, the infrared start module 101 is located on one side of the detection groove 2, the infrared shutdown module 102 is located on the other side of the detection groove 2, the infrared start module 101 is used for remotely starting the projector light machine 6, the infrared shutdown module 102 is used for remotely shutting down the projector light machine 6, both ends of the transmission guide shell 1 are provided with a mounting eave 103, the transmission guide shell 1 is fixedly installed with the test darkroom through the mounting eave 103, the transmission guide shell 1 is fixedly provided with a cantilever outer frame 301, the cantilever outer frame 301 is provided with a telescopic control cylinder 302, the telescopic control cylinder 302 is used for controlling the lifting of the light shielding baffle 3, the support roller shaft 401 is rotatably supported in the support side arm 911, and the support roller shaft 401 supports and drives the transmission belt 4.

[0040] The test method of the projector light machine test system comprises a storage and a processor; first, the projector light machine is preheated by the preheating transmission machine, and is transmitted to the specified position of the test darkroom; the projector light machine projects light onto the test curtain board, and the brightness is detected by the brightness meter; the detection data of the brightness meter is input into the storage, the processor calculates the difference between the minimum reading and the maximum reading of different brightness meters to obtain the brightness difference; the test curtain board is moved by the orbit driver to change the distance between the test curtain board and the projector light machine, and the uniformity of the light projected by the projector light machine under different projection distances is detected.

[0041] A computer readable medium having a computer program stored thereon, the computer program being executed by a processor to implement the test method of the projector light machine test system.

[0042] The preheating conveyor in the application is installed in the test darkroom through the installation of the eaves 103, the projector light machine 6 is placed in the positioning card corner 5 for positioning, the power supply wire row 7 is inserted into the projector light machine 6 to supply power to the projector light machine 6, along with the conveying of the conveying belt 4, when the projector light machine 6 passes through the infrared start module 101, the infrared start module 101 remotely starts, at this time, the projector light machine 6 starts preheating in the conveying process, when the projector light machine 6 reaches the position of the detection groove 2, the preheating is completed, the control light shielding baffle 3 is lowered to shield, so as to avoid the interference of light of other projector light machines 6 in the preheating state, at this time, the conveying belt 4 is paused. The projector light machine 6 automatically focuses and projects onto the test curtain board, the brightness uniformity is detected through the brightness meter, after the detection is completed, the light shielding baffle 3 is lifted to open, the projector light machine 6 continues to convey to pass through the infrared shutdown module 102 to remotely shut down, and finally the projector light machine 6 is conveyed out of the test darkroom.

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

[0044] In the above process, in the instant of starting the projector light machine 6 to pass through the infrared start module 101, due to the starting instant, the light source will experience a rapid transition process from the cold state to the normal light-emitting state; in this process, the power supply circuit needs to provide a relatively large current to make the light source reach the normal brightness and working state as soon as possible, so as to cause the power to rise in the starting instant; in the process of power rising, the dynamic contact bridge 9 moves synchronously with the conveying belt 4, so that the power supply contact column 905 and the conductive belt 8 are relatively stationary, so as to ensure the contact stability when the current is large. When the projector light machine 6 reaches the test position and the conveying belt 4 is stationary, the dynamic contact bridge 9 is slowly reset.

[0045] In the process of synchronous movement of the dynamic contact bridge 9 with the conveying belt 4, as shown in Figure 9 , the dynamic contact bridge 9 drives the gas pressure common pipe 913 and the piston body 915 to move, at this time, the piston body 915 extrudes right in the internal cylinder body 914, the gas is discharged through the beam hole 917, but due to the small aperture of the beam hole 917, the internal cylinder body 914 is in a positive pressure state at this time, the positive pressure enters the rubber hollow ring 908 through the communication gas path 910, so that the rubber hollow ring 908 expands, increasing the contact pressure between the power supply contact column 905 and the conductive belt 8, at this time, due to the relative stationarity of the power supply contact column 905 and the conductive belt 8, the increase of the pressure will improve the current transmission stability, without increasing the wear. When the dynamic contact bridge 9 reversely resets and moves, the gas enters the internal cylinder body 914 through the one-way air inlet valve 916, without causing large fluctuations in the internal pressure of the internal cylinder body 914.

[0046] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely exemplary of the principles and application of the present application. Numerous modifications and adaptions can be effected without departing from the spirit and scope of the present application, which is not limited to the exact construction and arrangement described. It is intended, therefore, to cover all modifications and adaptions that fall within the scope of the claims and their equivalents.

Claims

1. A light engine test system for a projector, comprising a test darkroom and a projector light engine, a pre-heat conveyor and a test screen plate disposed within the test darkroom, characterized in that: The projector light machine projects light onto the test curtain board, the test curtain board is provided with a luminance meter, the luminance meter detects the light projection uniformity of the projector light machine, the preheating conveyor supplies power to the projector light machine and preheats the projector light machine, and the preheating conveyor can convey the projector light machine to a specified position of the test darkroom. The preheating conveyor comprises a conveying guide shell (1), a detection slot (2), a light shielding partition (3) and a conveying belt (4), the detection slot (2) is arranged on the conveying guide shell (1), the light shielding partition (3) is arranged in the detection slot (2) in a lifting manner, the light shielding partition (3) can shield the light in the conveying guide shell (1) when it moves downward, the conveying belt (4) passes through the inside of the conveying guide shell (1), the surface of the conveying belt (4) is fixedly provided with a positioning corner (5), a projector light machine (6) is arranged in the positioning corner (5) in a limiting manner, the projector light machine (6) is positioned by the positioning corner (5), the surface of the conveying belt (4) is provided with a power supply wire row (7), the power supply wire row (7) corresponds to the position and quantity of the positioning corner (5) one by one, the power supply wire row (7) is inserted into the projector light machine (6) to supply power to the projector light machine (6), the inside surface of the conveying belt (4) is embedded with a conductive belt (8), the conductive belt (8) is conductively connected with the power supply wire 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) to supply power, the lower part of the dynamic contact bridge (9) is fixedly provided with a fixed screw sleeve (901), a driving lead screw (902) is screwedly installed in the fixed screw sleeve (901), a servo motor (903) is fixedly arranged on the conveying guide shell (1), the servo motor (903) is used to drive the driving lead screw (902) to rotate, so that the dynamic contact bridge (9) can move along the length direction of the conveying belt (4), a limiting vertical hole (904) is vertically and penetratingly arranged in the dynamic contact bridge (9), a power supply contact column (905) is arranged in the limiting vertical hole (904), the upper part of the power supply contact column (905) is frictionally contacted with the conductive belt (8), the conductive belt (8) is powered by the power supply contact column (905), a supporting spring (906) is arranged below the power supply contact column (905), a split supporting ring (907) is arranged below the supporting spring (906), a rubber hollow ring (908) is arranged below the split supporting ring (907), a limiting bottom ring (909) is arranged below the rubber hollow ring (908), the limiting bottom ring (909) is fixedly installed with the inner wall surface of the limiting vertical hole (904), a communication air channel (910) is arranged in the dynamic contact bridge (9), the communication air channel (910) is communicated with the rubber hollow ring (908).The surface of the transmission guide shell (1) is fixedly provided with a supporting side arm (911), an orbit clamping groove (912) is formed in the supporting side arm (911), the dynamic touch bridge (9) is slidably and limitingly installed on the orbit clamping groove (912), the orbit clamping groove (912) is provided with a gas pressure common pipe (913), the inner side surface of the transmission guide shell (1) is fixedly provided with an internal cylinder (914), the internal cylinder (914) is provided with a piston body (915), one end of the gas pressure common pipe (913) is fixedly installed on the piston body (915), the other end is fixedly installed on the dynamic touch bridge (9), the communication gas path (910) is communicated with the inner cavity of the internal cylinder (914) through the gas pressure common pipe (913), the end of the internal cylinder (914) is provided with a one-way air inlet valve (916), the end of the internal cylinder (914) is provided with a beam through hole (917), and the one-way air inlet valve (916) enables the gas flow to flow from the outside of the internal cylinder (914) to the inside of the internal cylinder (914) in one direction.

2. The optical engine test system for projectors of claim 1, wherein: The luminance meters are arranged at the middle and four corners of the test curtain board.

3. The optical engine test system for projectors of claim 1, wherein: The luminance meters are uniformly distributed in a linear array on the test curtain board.

4. The optical engine test system for projectors of claim 3, wherein: The test curtain board is provided below with a track driver, the track driver is used to drive the test curtain board to move, so as to change the distance between the test curtain board and the projector light machine, and then the light projection uniformity of the projector light machine under different projection distances can be tested.

5. The optical engine test system for projectors of claim 4, wherein: The surface of the transmission guide shell (1) is provided with an infrared start module (101) and an infrared shutdown module (102), the infrared start module (101) is located on one side of the detection slot (2), the infrared shutdown module (102) is located on the other side of the detection slot (2), the infrared start module (101) is used for remotely starting the projector light machine (6), the infrared shutdown module (102) is used for remotely shutting down the projector light machine (6), 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 mounting eaves (103), the transmission guide shell (1) is fixedly provided with a cantilever outer frame (301), the cantilever outer frame (301) is provided with a telescopic control cylinder (302), the telescopic control cylinder (302) is used to control the lifting of the light shielding baffle (3), and the support side arm (911) is rotatably supported by a support roller shaft (401), the support roller shaft (401) supports and drives the transmission belt (4).

6. The test method of claim 4 or 5, wherein: The projector light machine is preheated by the preheating conveyor, and is conveyed to a specified position of the test darkroom; the projector light machine projects light onto the test curtain board, and the luminance is detected by the luminance meter; the luminance meter inputs the detection data into the storage, and the processor calculates the difference between the minimum reading and the maximum reading of different luminance meters to obtain the luminance difference; the track driver controls the movement of the test curtain board, changes the distance between the test curtain board and the projector light machine, and detects the light projection uniformity of the projector light machine under different projection distances.

7. A computer readable medium characterized by: The computer program is stored on the storage, and the computer program is executed by the processor to realize the test method of the projector light machine test system according to claim 6. The computer program is stored on the storage, and the computer program is executed by the processor to realize the test method of the projector light machine test system according to claim 6.

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