CN102499626A - Stereoscopic vision flickering perception test device - Google Patents

Abstract

The stereoscopic vision flicker perception test device of the present invention inputs parameters at the man-machine interface interface, calculates through the microprocessor, drives two-way stepping motors, adjusts the angle and position of the movable reflector, and makes the images of the left and right eyes appear correctly. After testing The visual fusion of the tester forms a three-dimensional image, and under the illumination of the light source, the flicker perception test is carried out. The inner wall of the cabinet of the present invention is made of non-reflective material, and the cabinet is illuminated by full-color light-emitting diodes, which can realize the flicker perception test under the illumination of a single light source and different light sources for both eyes. The present invention can adjust the flickering frequency, phase difference, brightness, color, light-dark modulation depth, etc. of the light source as required, and overcomes the inability of the existing stroboscope to test the flickering sensation generated in the stereoscopic display device, and the inability to test the fusion of two eyes for different flickering lights However, it is impossible to test the flicker perception when the adjustment position of one eye is inconsistent with the convergence point of the two eyes, and it is possible to conduct more comprehensive and scientific testing and research on flicker perception of the human eye.

Description

A stereo vision flicker perception testing device

technical field

The invention belongs to the application field of electronic technology, and in particular relates to a stereoscopic vision flicker perception testing instrument.

Background technique

At present, the human eye flicker perception test generally uses a stroboscope as a measuring instrument. The stroboscope can control the light source to flash quickly at a specific frequency, so as to measure the flickering feeling. This type of instrument has a simple structure and a single function. It can only test the impact of the flicker frequency on the flicker perception ability of the human eye when two eyes look at the same light source, but cannot test the flicker perception of the two eyes under different light sources, and cannot modulate the light source. Color, Modulation Depth, etc. Only the human eye's perception of simple flickering light sources can be measured.

At present, 3D display technology is developing rapidly, and various display device manufacturers have launched many types of stereoscopic display devices. The application prospects of these 3D display devices are very broad. Most of the display principles of the existing 3D display devices in the market adopt the method of time separation or space separation, so that the left and right eyes can observe different plane images, and then form a 3D stereoscopic image through visual fusion. In these technologies, since two images are presented to the left and right eyes, the principle of flicker perception produced by flickering separately is different from the flicker perception obtained when two eyes watch the same image at the same time. A flicker perception test study under these conditions was performed.

In addition, the current technology of presenting different images to the left and right eyes by time separation or space separation, and forming a three-dimensional image through the fusion of the human brain breaks the coordination mechanism of the adjustment function of the single eye and the convergence function of the two eyes. The perception of the situation can not be tested with the existing stroboscope.

To sum up, due to the development of 3D display technology, the existing stroboscopes cannot present images with different flicker frequencies, brightness, colors, and flicker modulation depths to both eyes, and cannot measure the effects of breaking the normal monocular adjustment and binocular convergence. Flicker perception when presenting stereoscopic images under the condition of coordination mechanism, so it is impossible to carry out test research on the stereoscopic vision flicker perception of existing 3D display devices.

Contents of the invention

Technical problem: The present invention provides a stereoscopic vision flicker perception testing device that can test the flicker perception of two eyes under different light sources, and can also modulate the lighting depth by modulating the color and brightness of the light source.

Technical solution: the stereoscopic vision flicker perception testing device of the present invention comprises a box body, a light source, a fixed reflector, a movable reflector mechanism, a controller and an observation window, the box body is a cube with a movable cover plate at the top, and the inner surface of the box body Non-reflective materials are laid, and the light insulation device installed between the front and rear facades of the cabinet divides the cabinet into two symmetrical darkrooms. The light insulation device includes movable light partitions, horizontal light partitions and longitudinal light partitions The movable light-insulating panel includes a vertical straight plate and an inverted U-shaped plate arranged at one end of the longitudinal straight plate. The opening side of the inverted U-shaped plate faces the horizontal light-insulating plate and is connected to it, and the other end of the vertical straight plate is connected to the center of the front facade. Fixed groove connection; the two ends of the horizontal light partition are respectively connected with the left and right facades, and the left and right independent darkrooms are divided into two parts, the front and the back, and are set in the center of the area where the horizontal light partition is opposite to the opening of the inverted U-shaped plate There is a light source, the light source includes a full-color light-emitting diode and a constant current driver, the current input end of the full-color light-emitting diode is connected to the current output end of the constant-current driver;

In each of the darkrooms, an observation image is provided on the front facade, a light hole corresponding to the observation image is arranged on the transverse light-shielding plate, and a light source is arranged on the transverse light-shielding plate adjacent to the inner side of the light-through hole. A fixed reflector corresponding to the observed image is arranged between the transverse light partition and the rear facade. The outer side of the fixed reflector is fixed on the transverse light partition, and the inner side is fixed on the rear facade. The angle between the fixed reflector and the rear facade β=45°; an observation window is arranged on the rear facade adjacent to the inner side of the fixed reflector, a movable reflector mechanism corresponding to the observation window is arranged on the bottom surface of the darkroom, and a movable reflector mechanism is arranged on the movable reflector mechanism. Reflective mirror, the movable reflective mirror mechanism can make the movable reflective mirror move horizontally and laterally, and can also rotate around the axis perpendicular to the bottom surface at the same time.

In the present invention, the movable mirror mechanism includes a horizontal moving device and a mirror rotating device. The support of the horizontal moving device is arranged on the bottom surface of the darkroom, and two transverse and parallel guide rails are arranged on the support. A sliding base that slides horizontally on the guide rail, with limit switches at both ends of the guide rail, a horizontal moving stepper motor and a horizontal motor reduction gear set on one side of the guide rail, and a driven wheel on the other side of the guide rail. The mobile stepper motor is connected with the reduction gear set of the horizontal motor, and the output wheel of the reduction gear set of the horizontal motor is connected with a driving wheel, and a transmission belt is arranged on the driven wheel and the driving wheel, and a belt fixing clip is arranged on one side of the sliding base, and the belt is fixed The clip is connected with the transmission belt; the horizontal moving stepper motor is connected with the stepper motor driver through the signal line;

The reflector rotating device includes an angle rotation stepping motor and an angle motor reduction gear set arranged on the sliding base, the angle rotation stepping motor is connected with the angle motor reduction gear set, and the upper side of the output wheel of the angle motor reduction gear set is connected with a reflector Fixtures, reflector fixtures are provided with movable reflectors; the angular rotation stepping motor is connected to the angular stepping motor driver through the signal line;

The controller includes a microprocessor, a human-computer interaction interface, and a drive signal output terminal. The signal input terminal of the microprocessor is connected to the human-computer interaction interface interface and the limit switch. The microprocessor is respectively connected to the constant current driver through the drive signal output terminal. , the horizontal stepping motor driver and the signal input terminal of the angle stepping motor driver are connected.

When the device of the present invention is in use, if it is necessary to test various flicker perception situations under a single light source, the movable cover plate on the top of the test box can be opened, the movable light-insulating plate can be removed, and the light source in the middle of the horizontal light-insulating plate can provide illumination; The visual flicker perception test of the channel under different flicker frequency, intensity, phase difference, brightness, color, flicker modulation depth, etc., is added with a movable light partition, and is independently illuminated by the light sources in the left and right dark rooms.

The observation images of the left and right eyes in the box can be selected according to the test needs, and can be simple graphics or complex images, and their size and shape can be changed according to needs. After selecting the observation image, and inputting the interpupillary distance of the tester, the required convergence distance of the two eyes and the parameters of the lighting source to the human-computer interface interface, the microprocessor can calculate the moving distance and rotation angle of the movable mirror, The microprocessor controls the horizontal stepping motor driver and the angle stepping motor driver, drives the horizontally moving stepping motor and the angle rotating stepping motor, and moves the movable reflector to a corresponding position and angle. The observation image is presented in the observation window after being reflected twice by the fixed mirror and the movable mirror, so that the images seen by the tester from the left and right observation windows can be correctly converged to form a three-dimensional image. The single-eye adjustment distance, the two-eye convergence distance, and the parameters of the flickering light source are displayed in the computer interaction interface interface. Among them, the single-eye adjustment distance is equal to the length of the optical path after two reflections of the observed image, and the convergence distance of the two eyes is equal to the distance between the converged image point and the midpoint of the two eyes.

A light source inside the test chamber provides illumination for viewing images. By changing the parameters of the light source, you can test the flicker perception of different images under the illumination of different flickering light sources. The present invention can select a single light source for lighting or two independent light sources for lighting through the human-computer interaction interface, and can choose to change the flickering frequency, brightness, color, flickering modulation depth of the light source, and the phase difference between the left and right light sources and other parameters, and can choose the one to be tested. The convergence distance of the two eyes simulates various flickering situations of existing 3D display devices.

Beneficial effect: compared with the prior art, the present invention has the following advantages:

The device of the present invention adopts a light-tight box as the test environment, a light-shielding goggle is added to the observation window, and non-reflective materials are laid in the box, and the illuminating light felt by the tester is provided by the full-color bright light-emitting diode in the test box, eliminating the need for environmental protection. The effect of light on the tester's flicker perception makes the test results more accurate.

The invention can simulate a wider range of lighting conditions to test the flicker perception of human eyes. The test device uses a microprocessor to control three full-color light-emitting diodes for lighting, and can independently control the flickering frequency and color of each light source. When the middle full-color LED is used for lighting, the flicker perception under a single light source can be tested; when the left and right full-color LEDs are used for lighting, the flicker perception of people with two eyes under different light sources can be tested. When human eyes watch natural scenes, the adjustment distance of one eye and the convergence distance of both eyes are coordinated. However, the existing stereoscopic display device presents images with different parallax for left and right eyes on the same display plane, which breaks the coordination mechanism of human monocular adjustment and binocular convergence. Through the calculation of the microprocessor, the test device controls the two stepping motors, changes the angle and horizontal position of the movable mirror, and can adjust the convergence distance of the eyes, so it can test the flicker perception of the human eye when this coordination mechanism is broken. Condition.

Through parameter setting, the present invention can use PWM modulation method to modulate the bright and dark brightness levels of the flickering light, so that it flickers at different brightness levels, instead of only using the full bright and full dark brightness of the light source Blinks horizontally. This can test the flicker perception of light sources of different brightness in various dark backgrounds. It can simulate the flicker perception of human eyes when viewing stereoscopic images through various displays with backlighting (such as liquid crystal displays, etc.) when displaying images with different brightness levels. When the left and right eyes are illuminated by independent full-color LEDs, not only the above parameters can be adjusted, but also the phase difference between the two illuminations can be adjusted to simulate more flickering conditions in 3D display devices.

Description of drawings

Fig. 1 is the plane structural diagram of testing device of the present invention;

Fig. 2 is the cross-sectional view of the light hole of the testing device of the present invention;

Fig. 3 is the front view of testing device of the present invention;

Fig. 4 is the schematic diagram of the circuit connection of the testing device of the present invention;

Figure 5.1 is a top view of the horizontal moving device of the testing device of the present invention;

Fig. 5.2 is the front view of the horizontal moving device of the testing device of the present invention;

Figure 5.3 is the left side view of the horizontal moving device of the testing device of the present invention

Figure 6.1 is a top view of the mirror rotating device of the test device of the present invention;

Figure 6.2 is a front view of the mirror rotating device of the testing device of the present invention;

7 is a schematic diagram of a single light source illumination stereoscopic vision flicker perception test of the test device of the present invention;

Fig. 8 is a schematic diagram of the stereoscopic vision flicker perception test of the two-way independent light source illumination of the test device of the present invention;

Fig. 9 is the flow chart of the stereoscopic vision flicker perception test of the test device of the present invention;

Fig. 10 is a schematic diagram of the geometric relationship between the horizontal movement and angular rotation of the movable reflector of the testing device of the present invention;

Figure 11 is a graph showing the relationship between the tester's monocular adjustment distance and the convergence distance of the two eyes;

Fig. 12 is a relation diagram between the horizontal movement distance of the movable reflector and the convergence distance of the two eyes;

Fig. 13 is a graph showing the relationship between the rotation angle of the movable mirror and the convergence distance of the two eyes.

In the figure there are: box body 1, light source 2, fixed reflector 4, horizontal moving device 5, reflector rotating device 6, controller 7, observation window 8, front elevation 11, rear elevation 12, left elevation 13, Right elevation 14, observation image 15, full-color light-emitting diode 21, constant current driver 22, fixed slot 31, left fixed baffle 32, right fixed baffle 33, movable light-insulating plate 34, horizontal light-insulating plate 35, longitudinal light-insulating plate 36 , light hole 37, belt fixing clip 50, support 51, limit switch 52, guide rail 53, sliding base 54, horizontal movement stepping motor 55, driven wheel 56, transmission belt 57, driving wheel 58, horizontal stepping motor Driver 59, angle step motor driver 61, angle rotation step motor 62, angle motor reduction gear set 63, movable reflector 64, reflector fixture 65, gear holder 66, microprocessor 71, man-machine interface interface 72 , the drive signal output terminal 73 .

The distance h ₁ from the observation image to the light hole, the vertical distance h ₂ from the light hole to the observation window, and the main points that the light passes through in the schematic diagram of the moving mirror mechanism movement algorithm are A, F, B, C, D, E, F, auxiliary points G and O for algorithm derivation. The angle α between the movable reflector and the box plate where the observation window is located, the angle β between the fixed reflector and the box plate where the observation window is located (β≡45°), and the angle δ (δ=α-β) adjusted by the movable reflector .

Detailed ways

The technical solution of the present invention will be described in further detail below in conjunction with the accompanying drawings.

Stereo vision flicker perception testing device of the present invention comprises casing 1, light source 2, fixed reflector 4, movable reflector mechanism, controller 7 and observation window 8, and casing 1 is the cube that top is movable cover plate, and casing The inner surface of 1 is covered with non-reflective material, and the light insulation device arranged between the front facade 11 and the rear facade 12 of the box body 1 divides the box body 1 into two symmetrical darkrooms. The light insulation device includes a movable light insulation board 34. Transverse light-insulating plate 35 and longitudinal light-insulating plate 36. The movable light-insulating plate 34 includes a vertical straight plate and an inverted U-shaped plate arranged at one end of the longitudinal straight plate. The opening side of the inverted U-shaped plate faces the transverse light-insulating plate 35 and is connected to it , the other end of the vertical straight plate is connected with the fixed groove 31 provided in the center of the front facade 11; the two ends of the transverse light-shielding plate 35 are respectively connected with the left facade 13 and the right facade 14, and the left and right independent darkrooms are divided into front and rear two. Part, a light source 2 is arranged in the center of the area where the transverse light-shielding plate 35 is opposite to the opening of the inverted U-shaped plate. The light source 2 includes a full-color light-emitting diode 21 and a constant current driver 22. The current input terminal of the full-color light-emitting diode 21 is connected to the The current output terminal of the constant current driver 22 is connected;

In each of the darkrooms, the front facade 11 is provided with an observation image 15, and the transverse light-shielding plate 35 is provided with a light-through hole 37 corresponding to the observation image 15, and the transverse light-shielding plate adjacent to the inside of the light-through hole 37 35 is provided with a light source 2, and a fixed reflector 4 corresponding to the observation image 15 is arranged between the transverse light-insulating plate 35 and the rear facade 12. The outer side of the fixed reflector 4 is fixed on the transverse light-insulating plate 35, and the inner side is fixed on the rear. On the facade 12, the angle β=45° between the fixed reflector 4 and the rear facade 12; the rear facade 12 adjacent to the fixed reflector 4 inside is provided with an observation window 8, and the bottom surface of the darkroom is provided with a The movable reflector mechanism corresponding to the observation window 6 is provided with a movable reflector 64 on the movable reflector mechanism. The movable reflector mechanism can make the movable reflector 64 move horizontally and laterally, and also rotate around an axis perpendicular to the bottom surface.

In the present invention, the movable reflector mechanism includes a horizontal moving device 5 and a mirror rotating device 6, and the support 51 of the horizontal moving device 5 is arranged on the bottom surface of the darkroom, and the support 51 is provided with two transverse and parallel guide rails 53, A sliding base 54 that can slide horizontally on the guide rail 53 is placed on the guide rail 53, limit switches 52 are arranged at both ends of the guide rail 53, and a horizontally moving stepping motor 55 and a horizontal motor on one side of the guide rail 53 are provided on the support 51. The reduction gear set is located at the driven wheel 56 on the other side of the guide rail 53, and the horizontal movement stepper motor 55 is connected with the horizontal motor reduction gear set. A transmission belt 57 is arranged on the top, and a belt fixing clip 50 is arranged on one side of the sliding base 54, and the belt fixing clip 50 is connected with the transmission belt 57; the horizontal moving stepping motor 55 is connected with a horizontal stepping motor driver 59 through a signal line;

Reflective mirror rotating device 6 comprises the angle rotation stepper motor 62 that is arranged on the slide base 54 and the angle motor reduction gear group 63, and the angle rotation stepper motor 62 is connected with the angle motor reduction gear group 63, and the angle motor reduction gear group 63 outputs The upper side of the wheel is connected with a reflector fixture 65, and the reflector fixture 65 is provided with a movable reflector 64; the angle rotation stepper motor 62 is connected with an angle stepper motor driver 61 by a signal line;

Controller 7 comprises microprocessor 71, man-machine interface interface 72, drive signal output end 73, and the signal input end of microprocessor 71 is connected with man-machine interface interface and limit switch 52, and microprocessor 71 passes drive signal The output terminal 73 is respectively connected with the signal input terminals of the constant current driver 22 , the horizontal stepping motor driver 59 and the angle stepping motor driver 61 .

The box body of the device of the present invention is made of opaque material, and the inner wall surface is covered with non-reflective material to ensure that it will not be disturbed by ambient light. As shown in Figure 1, the cabinet is divided into a front half and a back half by a transverse light partition. The front half can be divided into two darkrooms by a movable light partition, which is the test channel for the left and right eyes, which can be illuminated by two full-color light-emitting diodes on the left and right respectively. When removing the movable light-shielding board, use a full-color light-emitting diode in the middle for lighting. The second half of the cabinet is the part of the reflected light path, which is divided into two symmetrical darkrooms on the left and right by a longitudinal light partition, and connected to the front half with a light hole, as shown in Figure 2. The fixed reflector and the movable reflector platform support are placed therein. The fixed reflector is fixed at β=45° on the transverse light partition and the rear facade facing the light hole. The initial value of the angle of the movable reflector is α=β=45°, the initial position is 0.5 h ₂ from the fixed reflector, and h ₂ is the length of the second half of the cabinet, see Figure 8. The observation window is the window for the tester to observe the image, and the distance between the two windows can be adjusted horizontally to suit testers with different interpupillary distances.

The observation image can choose simple graphics and complex images according to the test needs, and the observation image is illuminated by full-color light-emitting diodes. The parameters of the light source can be input through the human-computer interface interface.

As shown in Fig. 4, the controller includes a microprocessor, a man-machine interface interface, and a drive signal output terminal. The microprocessor is respectively connected with the input end and the output end of the interface of the human-computer interaction interface, and is connected with the output end of the driving signal.

The input end of the constant current driver of the light source is connected with the output end of the driving signal, and the output ends of the constant current driver are respectively connected with the input ends of three full-color LEDs. Full-color light-emitting diodes are composed of red, green, and blue channels. By controlling the driving signals of each channel, the frequency, intensity, color, and phase of the light source can be changed.

The signal input end of the horizontal stepping motor driver 59 and the angle stepping motor driver 61 of the movable mirror mechanism is connected with the driving signal output end 73 of the controller 71 respectively, and the output end of the horizontal stepping motor driver 59 is connected with the horizontal moving stepping motor 55 is connected, and the horizontal movement stepper motor 55 can drive the sliding base 54 to move horizontally through the horizontal motor reduction gear set 58, the driven wheel 56 and the transmission belt 57. The output end of the angle step motor driver 61 is connected with the angle rotation step motor 61, and the movable reflector 64 is fixed on the output wheel of the angle motor reduction gear set 63, and the angle rotation step motor 61 drives the angle motor reduction gear set 62 to rotate , for angular positioning.

The geometric relationship between the rotation angle of the angle-rotating stepping motor and the moving distance of the horizontally moving stepping motor in the present invention ensures that the images observed by the two eyes can be correctly converged into a stereoscopic image. Figure 10 is a schematic diagram of the geometric relationship. With reference to FIG. 10 , the calculation of the geometric relationship will be described in detail below.

为被测试者的瞳距。固定反射镜的角度β=45°，并固定于底边上正对通光孔处。活动反射镜角度的初始角度α=β=45°,初始位置为距离固定反射镜0.5 h₂，即E点处。作光路辅助线AFB，BEC，CD，AF＝h₁，FB＝BE＝h₂，G点为图像会聚点，O点为两眼间距的中心点。 Let the box be wide w and long h. h=h1+h2, h1 is the distance from the observed image to the light hole, and the vertical distance h ₂ from the light hole to the observation window,

is the interpupillary distance of the subjects. The angle of the fixed reflector is β=45°, and it is fixed on the bottom edge facing the light hole. The initial angle of the movable mirror angle is α=β=45°, and the initial position is 0.5 h ₂ away from the fixed mirror, that is, point E. As optical path auxiliary lines AFB, BEC, CD, AF=h ₁ , FB=BE=h ₂ , point G is the image convergence point, and point O is the center point of the distance between the two eyes.

According to the law of light reflection and the similarity theorem of triangles, the derivation process is as follows:

l EC is the distance that the stepper motor needs to move horizontally to the right.

,

l δ is the angle at which the movable mirror needs to move counterclockwise on the basis of the initial angle α = 45°.

the

。 l Monocular adjustment distance

.

According to the Pythagorean theorem:

Draw the relationship curve between the tester's monocular adjustment distance and the convergence distance of the two eyes, as shown in Figure 11.

Draw the relationship diagram between the horizontal movement distance of the movable mirror and the convergence distance of the two eyes, as shown in Figure 12.

Draw the relationship diagram between the rotation angle of the movable mirror and the convergence distance of the two eyes, as shown in Figure 13.

，正常人瞳距设为65mm。因为人眼的明视距离在200-300mm左右，取会聚距离为

200mm~5000mm。 In the figure: take h1=800mm, h2=200mm,

, normal pupil distance is set to 65mm. Because the clear vision distance of the human eye is about 200-300mm, the convergence distance is taken as

200mm~5000mm.

The present invention can carry out the flicker feeling test of two types of different lighting sources:

The first is a stereoscopic flicker perception test illuminated by an independent light source. This kind of test can study the flicker perception of the human eye under lighting lights of different frequencies, intensities, colors, and light-dark modulation depths when illuminated by a single light source. Figure 7 shows the stereoscopic flicker when illuminated by a full-color light-emitting diode in the middle The schematic diagram of the box for the perception test; the second is the stereo vision flicker perception test when the left and right eyes are illuminated by different light sources. This test can study the human eye's stereoscopic vision flicker perception when the tester's eyes are presented with different frequencies, intensities, colors, and phases of illumination light. Figure 8 shows the test for the stereoscopic vision flicker perception of two independent light sources. Schematic diagram of the box.

处，初始角度为α=β=45°。初始化结束，则等待输入参数。通过人机交互界面选择测试类型，输入光源的各项参数确认后，参数信号经人机交互界面接口输入到微处理器。微处理器处理后，通过驱动信号输出端将控制信号传送给光源的恒流驱动器，控制全彩发光二极管发光。再通过人机交互界面输入测试者瞳距和需要的两眼会聚距离确认后，参数信号经人机交互界面接口输入到微处理器，微处理器计算后，通过驱动信号输出端将控制信号传送给步进电机驱动器，驱动角度转动步进电机和水平移动步进电机，将活动反射镜移动到正确的位置和角度，同时将光源参数、单眼调节距离和双眼会聚距离等计算后的信息通过人机交互界面接口传输给人机交互界面显示。这时可通过观察窗口进行闪烁感知测试。 Fig. 9 is a flow chart when testing. When testing, the first choice is to determine whether to test under single light source lighting, or to test stereoscopic vision flicker perception when the left and right eyes are illuminated by different light sources. Depending on the need, decide whether to remove the movable light barrier. Then select an observation image of appropriate size and shape, and fix it on the front wall of the cabinet facing the light hole. Start the power of the test device, and the system will perform a self-test on each component. If there is an error during the self-test, stop the test and wait for overhaul. If the self-test is normal, proceed to the initialization process of the system. This process includes displaying initial information, homing the horizontal movement stepper motor and angular rotation stepper motor through the signal sent back by the home switch, so that the horizontal center of the movable reflector is located at a distance of 0.5 from the fixed reflector.

, the initial angle is α=β=45°. After the initialization is completed, it waits for input parameters. The test type is selected through the human-computer interaction interface, and after each parameter of the input light source is confirmed, the parameter signal is input to the microprocessor through the human-computer interaction interface interface. After processing by the microprocessor, the control signal is sent to the constant current driver of the light source through the drive signal output terminal to control the full-color light-emitting diode to emit light. Then input the interpupillary distance of the tester and the required convergence distance of the two eyes through the human-computer interaction interface to confirm, the parameter signal is input to the microprocessor through the human-computer interaction interface interface, and after calculation by the microprocessor, the control signal is transmitted through the drive signal output terminal Give the stepper motor driver, drive the angular rotation stepper motor and horizontally move the stepper motor, move the movable reflector to the correct position and angle, and at the same time, calculate the information such as light source parameters, monocular adjustment distance and binocular convergence distance through the human body The computer interaction interface interface is transmitted to the computer interaction interface for display. At this time, the flicker perception test can be carried out through the observation window.

Claims (2)

1. stereoscopic vision flicker perception test set; It is characterized in that; This device comprises casing (1), light source (2), stationary mirror (4), movable illuminator mechanism, controller (7) and watch window (8); Described casing (1) is the cube of removable cover for the top; The inner surface of casing (1) is laid with not reflectorized material; Separated the electro-optical device that is provided with between the preceding facade (11) of casing (1) and back facade (12) is divided into symmetrical two darkrooms with casing (1), said at a distance from electro-optical device comprise movable at a distance from tabula rasa (34), laterally at a distance from tabula rasa (35) with vertically at a distance from tabula rasa (36), said activity comprises vertically straight plate and is arranged at said vertical directly inverted U-shaped plate of plate one end at a distance from tabula rasa (34); At a distance from tabula rasa (35) and be attached thereto, the other end of said vertically straight plate is connected with the holddown groove (31) of preceding facade (11) center setting to laterally in opening one side of said inverted U-shaped plate; The two ends of said laterally separated tabula rasa (35) are connected with right facade (14) with left facade (13) respectively; With about two independent darkrooms all be divided into before and after two parts; Laterally be provided with a light source (2) at a distance from the opening region facing center of tabula rasa (35) and inverted U-shaped plate; Said light source (2) comprises full-color light-emitting diode (21) and constant-flow driver (22), and the current input terminal of said full-color light-emitting diode (21) is connected with the current output terminal of constant-flow driver (22);

In each said darkroom; Preceding facade (11) is provided with observes image (15); Laterally be provided with the light hole (37) corresponding with said observation image (15) at a distance from tabula rasa (35); The inboard adjacent laterally separated tabula rasa (35) of said light hole (37) is provided with light source (2), laterally between tabula rasa (35) and back facade (12), is being provided with the stationary mirror (4) corresponding with observing image (15), and the outside of said stationary mirror (4) is fixed on the laterally separated tabula rasa (35); The inboard is fixed on back facade (12), angle β=45 of stationary mirror (4) and back facade (12) °; The inboard adjacent back facade (12) of said stationary mirror (4) is provided with watch window (8); The bottom surface in darkroom is provided with corresponding with said watch window (6) movable illuminator mechanism; Said movable illuminator mechanism is provided with movable illuminator (64); Activity illuminator mechanism can make the motion of said movable illuminator (64) horizontal cross, and the axis that also can wind simultaneously perpendicular to the bottom surface rotates.

2. a kind of stereoscopic vision flicker perception test set according to claim 1; It is characterized in that; Described movable illuminator mechanism comprises horizontally moving device (5) and illuminator tumbler (6); The bearing (51) of said horizontally moving device (5) is arranged on the bottom surface in darkroom, and said bearing (51) is provided with two horizontal and parallel guide rails (53), is placed with on the said guide rail (53) to go up the sliding bottom (54) of horizontal slip at guide rail (53); Guide rail (53) two ends are provided with limit switch (52); Bearing (51) be provided be positioned at guide rail (53) one sides move horizontally motor (55) and horizontal motor train of reduction gears, be positioned at the driven pulley (56) of guide rail (53) opposite side, the said motor (55) that moves horizontally is connected with horizontal motor train of reduction gears; The output wheel of horizontal motor train of reduction gears is connected with drivewheel (58); Said driven pulley (56) and drivewheel (58) are provided with driving belt (57), and said sliding bottom (54) one sides are provided with belt fixation clamp (50), and said belt fixation clamp (50) is connected with driving belt (57); The said motor (55) that moves horizontally is connected with horizontal stepper motor driver (59) through holding wire;

Said illuminator tumbler (6) comprises angular turn motor (62) and the angle motor train of reduction gears (63) that is arranged on the sliding bottom (54); Said angular turn motor (62) is connected with angle motor train of reduction gears (63); The upside of angle motor train of reduction gears (63) output wheel is connected with illuminator anchor clamps (65), and illuminator anchor clamps (65) are provided with movable illuminator (64); Said angular turn motor (62) is connected with angle stepper motor driver (61) through holding wire;

Said controller (7) comprises microprocessor (71), human-computer interaction interface interface (72), drives signal output part (73); The signal input part of said microprocessor (71) is connected with limit switch (52) with human-computer interaction interface interface (72), and microprocessor (71) is connected with constant-flow driver (22), horizontal stepper motor driver (59) and the signal input part of angle stepper motor driver (61) respectively through driving signal output part (73).

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