CN210534447U - Simulated head-up display - Google Patents
Simulated head-up display Download PDFInfo
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- CN210534447U CN210534447U CN201921990258.5U CN201921990258U CN210534447U CN 210534447 U CN210534447 U CN 210534447U CN 201921990258 U CN201921990258 U CN 201921990258U CN 210534447 U CN210534447 U CN 210534447U
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Abstract
Simulation head-up display belongs to head-up display technical field. The simulated head-up display has high simulation degree, is real in simulation and increases the use comfort of a pilot. The optical system comprises a first combined mirror, a second combined mirror, a front objective group, a reflecting mirror and a rear objective group; the liquid crystal display device is characterized in that the rear objective group is arranged in parallel with a liquid crystal display screen in the liquid crystal imaging system, the front objective group and the rear objective group are vertically arranged, the reflector is obliquely arranged between the front objective group and the rear objective group, the light of the rear objective group is reflected to the front objective group by the reflector, the first combined mirror and the second combined mirror are arranged above the front objective group from top to bottom, and the first combined mirror and the second combined mirror are arranged in parallel with the reflector. The utility model discloses reach the purpose of more real simulation actual flight condition, improved the fidelity of flight emulation greatly, no dizzy sense in the use has increased the comfort level that the pilot used.
Description
Technical Field
The utility model belongs to the technical field of head-up display, especially, relate to an emulation head-up display.
Background
The simulation head-up display is used for simulating a head-up display on an XX type real airplane, can be used together with other simulation equipment (a simulation cockpit, a simulation view and the like), and completes ground simulation flight training, related tests and the like of a pilot.
However, the existing simulation flat display has the problems of low simulation degree, unreal simulation and low comfort level of pilots, and the effect of simulation training is reduced.
SUMMERY OF THE UTILITY MODEL
Not enough to above-mentioned prior art exists, the utility model provides a simulation degree is high, and the simulation is true, increases pilot use comfort's emulation head-up display
The utility model adopts the technical proposal that: the simulated head-up display comprises an optical system, a liquid crystal imaging system, a control system and a shell; the liquid crystal imaging system, the optical system and the control system are all arranged on the shell, the liquid crystal imaging system changes video signals transmitted from the outside into visible images, the optical system projects the images displayed by the liquid crystal imaging system, and the control system controls the liquid crystal imaging system;
the optical system comprises a first combined mirror, a second combined mirror, a front objective group, a reflecting mirror and a rear objective group; the liquid crystal display device is characterized in that the rear objective group is arranged in parallel with a liquid crystal display screen in the liquid crystal imaging system, the front objective group and the rear objective group are vertically arranged, the reflector is obliquely arranged between the front objective group and the rear objective group, the light of the rear objective group is reflected to the front objective group by the reflector, the first combined mirror and the second combined mirror are arranged above the front objective group from top to bottom, and the first combined mirror and the second combined mirror are arranged in parallel with the reflector.
The beneficial effects of the utility model reside in that:
the utility model discloses the overall dimension and the function identical with real aircraft head-up display, and can realize the closely formation of image that shows the image, make the image and the emulation view coincidence completely of demonstration, make the pilot under the condition that eyes need not focus, can see the simulation view and the head-up display image of demonstration simultaneously clearly, reach the purpose of the actual flight condition of more real simulation, flight emulation's fidelity has been improved greatly, no dizzy sense in the use, the comfort level that the pilot used has been increased, therefore, this head-up display is suitable for more and flight simulation training and relevant experiment.
Drawings
FIG. 1 is a schematic diagram of an optical system according to the present invention;
FIG. 2 is a light path diagram of the optical system of the present invention;
FIG. 3 is a graph of field curvature and distortion of the present invention;
fig. 4 is a diameter diagram of the diffuse spot of the present invention;
FIG. 5 is a diagram of the transfer function of the present invention;
FIG. 6 is a diagram of the control system of the present invention;
FIG. 7 is a structural effect diagram of the housing of the present invention;
wherein: 1-eyepoint; 2, combining the first mirror; 3-a second combined mirror; 4-objective front group; 5-a reflector; 6-rear group of objective lens; 7-liquid crystal screen.
Detailed Description
As shown in fig. 1-7, the simulated head-up display includes an optical system, a liquid crystal imaging system, a control system and a housing; the liquid crystal imaging system, the optical system and the control system are all arranged on the shell, the liquid crystal imaging system changes video signals transmitted from the outside into visible images, the optical system projects the images displayed by the liquid crystal imaging system, and the control system controls the liquid crystal imaging system;
the liquid crystal imaging system includes a high resolution Liquid Crystal Display (LCD), a backlight source, a driver, and the like. The function of the device is to change the video signal from the outside into a visible image. Is the prior art.
The shell comprises an optical system, a mounting structure of a liquid crystal imaging system, a shell, an external connecting structure and the like, and is used for ensuring that the internal structure is accurately mounted and fixed and is fixedly connected with external equipment.
The working principle of the simulation head-up display is that a liquid crystal imaging system receives a video signal sent from the outside to generate a corresponding visual image, and the visual image on a liquid crystal screen 7 connected with the liquid crystal imaging system is uniformly illuminated by light emitted by a backlight light source and then projected out through an optical system to form an amplified virtual image in a corresponding distance in front of human eyes, so that a necessary simulation head-up display image is provided for pilot training.
As shown in fig. 1, the optical system includes a first combination mirror 2, a second combination mirror 3, a front objective group 4, a reflecting mirror 5 and a rear objective group 6; the utility model discloses a set of high-speed liquid crystal display, including objective lens rear group 6, LCD screen 7 parallel arrangement in objective lens rear group 6 and the liquid crystal imaging system, 4 and the 6 vertical settings from top to bottom of objective lens rear group, 5 slopes to set up between the right angle that 6 form of 4 and objective lens rear group before the objective lens, and 5 with the light reflection of 6 of objective lens rear group 4 before the objective lens, set up 4 tops before the objective lens about combination mirror 2 and combination mirror two 3, combination mirror 2 and combination mirror two 3 all with 5 parallel arrangement of speculum.
An image on a liquid crystal screen 7 in the liquid crystal imaging system is refracted by the rear objective lens group 6 and then reflected to the front objective lens group 4 by the reflector 5, and light rays are refracted again by the front objective lens group 4 and then reflected by the first combination lens 2 and the second combination lens 3 and then transmitted to human eyes, such as the eye spot 1 shown in fig. 1.
The optical system has the following functions: 1) the exit pupil of the head up display is overlapped with the pupil of the human eye, and the exit pupil of the head up display covers the pupil of the human eye, so that the brightness of the head up display image seen by a pilot is ensured to be uniform; 2) the light emitted from each point of the liquid crystal screen 7 is imaged at the position which is in front of the eyes and is overlapped with the simulation visual scene, so that the pilot can observe a clear head-up image while seeing the simulation visual scene clearly.
The front and rear objective lens groups 4 and 6 are used for magnifying the image on the liquid crystal imaging system and projecting the image to the human eye, and the exit pupil of the plano-optic system covers the pupil of the human eye. The pilot can thus observe a clear, magnified head-up display image at the same imaging distance as the simulated viewing distance.
The first combined mirror 2 and the second combined mirror 3 have the functions of changing the propagation direction of the flat display light rays, so that a pilot can clearly observe an image displayed by the flat display while seeing an external simulation view clearly, and the purpose of combining external light rays and the flat display light rays into one light beam is achieved; meanwhile, the second combined mirror 3 has the function of increasing the angle of view of the head display in the vertical direction, so that the pilot can observe more head display information.
The reflector 5 is used for changing the propagation direction of the light beam and folding the light path, so that the overall shape of the optical system meets the requirement of the actual space.
The method comprises the steps of determining the curvature radius, the lens thickness, the interval, the refractive index and the dispersion of materials of optical parts of an optical system according to a high-grade aberration theory by repeatedly demonstrating simulation plano-graphic optical technical indexes and simultaneously referring to the conventional mature experience, optimally distributing the focal power of the optical parts, applying computer aided design, correcting aberration by using optical design software Zemax, drawing an aberration curve, analyzing the reason for generating the aberration according to the high-grade aberration theory, repeatedly calculating and balancing the aberration until the residual aberration is reduced to the extent that the use requirement is not influenced, and meeting the imaging quality requirement. The optical path diagram of the optical system is shown in fig. 2.
The design criteria of the final optical system are shown in figure 3,
the design results of fig. 3, 4 and 5 show that the distortion of the optical system is less than 1.3%, the diameter of the diffuse spot is less than 18 microns, and the transfer function of the 4 line pair is greater than 0.7, thus completely meeting the use requirement.
As shown in fig. 6, the control system includes an interface panel unit, a flat display screen display circuit, and a front panel acquisition processing circuit;
the flat display picture display circuit comprises a liquid crystal display screen, a liquid crystal driving unit and a brightness contrast adjusting unit; the liquid crystal display screen is connected with the liquid crystal driving unit, the brightness contrast adjusting unit is connected with the liquid crystal driving unit, and the liquid crystal driving unit is connected with the interface panel unit;
the front panel acquisition processing circuit comprises a key acquisition unit, a UFCP panel liquid crystal unit and a panel small liquid crystal driving unit; the key acquisition unit is connected with the UFCP panel liquid crystal unit and the interface panel unit, and the panel small liquid crystal driving unit is connected with the UFCP panel liquid crystal unit and the interface panel unit. The function of which is to simulate the same control effect as a real aircraft UFCP.
The liquid crystal display screen adopts an ultra-high brightness HUD liquid crystal display screen, has the characteristics of ultra-high brightness image display, high resolution and the like, and is used for displaying a flat display picture;
a liquid crystal driving unit: the method has the advantages that the brightness and the contrast of the image can be directly adjusted, and the method is used for driving a flat display liquid crystal display screen;
the key acquisition unit: various communication modes and stable performance, is used for collecting the key state of the UFCP panel, processing the key state into a proper signal and sending the signal to a designated upper computer,
UFCP panel liquid unit and panel small liquid crystal drive unit: the UFCP simulation system is used for simulating character display lattices in the centers of UFCPs of some models;
an interface panel unit: and a power supply interface, a communication interface, a display interface and the like are provided according to needs.
As shown in fig. 7, the outer shape of the housing is the same as the outer shape of the actual equipment, and the design depends on the size of the optical structure. The structure is mainly made of high-strength hard aluminum. And black matt amino baking paint is sprayed on the outer surface of the shell.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. A simulated head-up display comprises an optical system, a liquid crystal imaging system, a control system and a shell; liquid crystal imaging system, optical system and control system all install on the shell, its characterized in that: the liquid crystal imaging system changes a video signal transmitted from the outside into a visible image, the optical system projects the image displayed by the liquid crystal imaging system, and the control system controls the liquid crystal imaging system;
the optical system comprises a first combined mirror (2), a second combined mirror (3), a front objective lens group (4), a reflecting mirror (5) and a rear objective lens group (6); the utility model discloses a set of high-speed liquid crystal display, including objective lens rear group (6) and liquid crystal imaging system, LCD screen (7) parallel arrangement in objective lens rear group (6) and the liquid crystal imaging system, set up perpendicularly from top to bottom before objective lens (4) and objective lens rear group (6), between set (4) and objective lens rear group (6) before objective lens (5) slope setting, set (4) before objective lens are reflected with the light of objective lens rear group (6) in speculum (5), set up group (4) top before objective lens from top to bottom in combination mirror (2) and combination mirror two (3), combination mirror (2) and combination mirror two (3) all with speculum (5) parallel arrangement.
2. The emulated heads-up display of claim 1, wherein: the control system comprises an interface panel unit, a head-up display picture display circuit and a front panel acquisition processing circuit;
the flat display picture display circuit comprises a liquid crystal display screen, a liquid crystal driving unit and a brightness contrast adjusting unit; the liquid crystal display screen is connected with the liquid crystal driving unit, the brightness contrast adjusting unit is connected with the liquid crystal driving unit, and the liquid crystal driving unit is connected with the interface panel unit;
the front panel acquisition processing circuit comprises a key acquisition unit, a UFCP panel liquid crystal unit and a panel small liquid crystal driving unit; the key acquisition unit is connected with the UFCP panel liquid crystal unit and the interface panel unit, and the panel small liquid crystal driving unit is connected with the UFCP panel liquid crystal unit and the interface panel unit.
3. The emulated heads-up display of claim 2, wherein: the liquid crystal display screen adopts an ultra-bright HUD liquid crystal display screen.
4. The emulated heads-up display of claim 1, wherein: the shell is mainly made of high-strength hard aluminum, and black matt amino baking paint is sprayed on the outer side surface of the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921990258.5U CN210534447U (en) | 2019-11-18 | 2019-11-18 | Simulated head-up display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921990258.5U CN210534447U (en) | 2019-11-18 | 2019-11-18 | Simulated head-up display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210534447U true CN210534447U (en) | 2020-05-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921990258.5U Active CN210534447U (en) | 2019-11-18 | 2019-11-18 | Simulated head-up display |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210534447U (en) |
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- 2019-11-18 CN CN201921990258.5U patent/CN210534447U/en active Active
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