|
IPC classes for russian patent Device for displaying visual information on vehicle windscreen (RU 2424541):
Another patents in same IPC classes:
 Optical projection system / 2403602
System has an optical modulator, an optical transfer part, an optical projection part, an aspherical mirror and a reflection shield. The optical transfer part has an inherent part which includes at least one optical element lying on a first optical axis. The optical projection part has an inherent part which includes at least one optical element lying on a second optical axis which is shifted from the first optical axis. The optical transfer part and the optical projection part have a common part which includes at least one reflecting and one refracting optical element. The inherent part of the optical transfer part transmits light beams from the optical modulator to the common part which transmits light beams in the forward direction from the inherent part of the optical transfer part to the reflecting element on which an intermediate image forms, and in the reverse direction from the reflecting element to the inherent part of the optical projection part which guides light beams to the aspherical mirror.
 System and method of protecting microstructure of display matrix using pads in gap inside display device / 2383043
Display device has a matrix of interferometric modulators formed on a substrate, a rear plate, a seal and one or more pads. The seal is placed between the substrate and the rear plate together for mounting the matrix of modulators into the housing. The pads are placed between the matrix and the plate. The pads prevent contact of the rear plate with the matrix. The pads are not in contact with the rear plate or the matrix. The method of making a display device provides a matrix of interferometric modulators on a substrate. Pads are placed between the matrix and the rear plate and the rear plate and the substrate are sealed together.
 Collimator indicator system / 2364902
Collimator indicator system is intended for display of flight information combined with conditions observed outside cabin. System comprises generator of two-dimensional image with radiator 2 in the form of liquid crystal panel, projection objective 3 with decentered optic elements and combiner 4. Optical system of projection objective 3 consists of three lens groups and optical wedge, optical axes of which are displaced and/or turned in meridional plane. Combiner 4 is made in the form of plano-convex lens 5 and plano-concave lens 6 glued along spherical surfaces with multilayer dielectric beam-splitter coating 7 applied on surface of gluing, which selectively reflects radiation of liquid crystal in narrow range of wave lengths and transmits passing light of visible wave range.
 Wide-angle collimating indicator / 2358304
Proposed indicator contains a cathode ray tube (CRT), a two-component lens, between the components of which there is a flat reflecting mirror, breaking the optical surface, and a two-component semitransparent inclined mirror. The first component is made from the first negative, second positive and third plane-convex lens. The second component is made from the fourth positive lens-meniscus, the concave surface of which faces the mirror, the convex surface of which is parabolic. Between the second and third lenses there is a plane-parallel plate, stuck to the third lens and containing a beam-splitting plane inclined to the axis of the CRT, facing the lower end of the CRT. Under the plate there is fifth positive lens, a right-angle prism with a reflecting hypotenuse edge, a sixth positive lens, seventh convex-plane lens, on the flat surface of which a target reticule is put, located in the focal plane of an extra indicator channel, consisting of the six lens, right-angle prism, fifth lens, lower part of the plane-parallel plate, third lens, reflecting mirror and the fourth lens. Behind the convex surface of the seventh lens there is the eighth plane-convex lens, two illuminating lamps and spherical mirror. Ratios given in the formula of invention are satisfied in the indicator.
 Wide-angle collimating indicator / 2358303
Proposed indicator contains a cathode ray tube (CRT), a two-component lens, between the components of which there is an optical element, breaking the optical axis, made in form of flat reflecting mirror, inclined to the axis of the CRT, and a two-component semitransparent inclined mirror located above the lens. The first component of the lens is made from two positive lenses, the first of which is made from a positive and a negative meniscus stuck together and the second is from a positive lens and a negative meniscus. The second component is a plane-convex lens, the convex surface of which is parabolic. The following ratios are satisfied: 1.9 > n1, n4 > n2, n3 > 1.6 > n5, 1.1f > R8 > f, f > d > 0.9f, 2f > L > 1.6f, where: n1, n4, n2, n3, n5 are refractive indices of the first and second negative meniscuses, positive meniscus, third lens and fifth plane-convex lens, respectively; f is the focal length of the lens; R8 is the radius of the second surface of the second component; d is the distance between the components of the lens; L is the length of the lens.
 Collimating aircraft indicator / 2358302
Proposed indicator contains a cathode ray tube (CRT), a two-component lens, between the components of which there is an optical element, breaking the optical axis, made in form of a flat reflecting mirror, and a two-component semitransparent inclined mirror, located above the lens. The first component is made from a first negative meniscus and second and third positive meniscuses, whose concave surfaces face the screen of the CRT. The second component is a positive meniscus, the concave surface of which faces the reflecting mirror. The following ratios are satisfied: 2f > L > 1.7f, d > 1.1f, 1.75 > n2, n3 > n1 > n4 > 1.5, R1 < R3 < R5, R8 > 1.1f, where f is the focal length; L is the length of the lens; d is the distance between the first and second components; n1, n2, n3, n4 is the refractive index of the first, second, third and fourth lenses respectively; R1, R3, R5, R8 are values of radii of the first surfaces of the first, second, third lens and the second surface of the fourth lens, respectively.
 Projection optic system with distortion compensation / 2326417
System comprises the projection optic device, screen and distortion compensation device. The projection optic device contains the light source and optic elements. The distortion compensation device contains the elastic plate and means of plate deformation and is positioned between the screen and light source. The device design provides formation of optical beam transferring the image onto screen and optical beam projection onto screen through the plate. The distortion compensation device design provides the compensation of the image distortions in screen angles; the said compensation is provided with unbending of plate angle parts on which the part of light beam is projected. The means of plate deformation provides the possibility of unbending of the plate angle parts and its fixing in deflected state.
 Portable small-sized projection apparatus for reading microfiches / 2317576
Portable small-sized projection apparatus for reading microfiches has the following members mounted along optical axis: light source with reflecting mirror, first and second lenses of condenser, rotary mirror, third condenser's lens, first and second glass clamping plates, projection lens, swinging mirror, screen for observation, and device for shifting microfiches. Slit heat filter is mounted between second condenser's lens and rotary mirror. Acoustic-optical deflector and forming lens of acoustic-optical deflector are mounted between third lens of condenser and first clamping glass plate. Electron switch, ultrasonic oscillator and control device are introduced into device additionally to be related one to other. Acoustic-optical deflector is made in form of 8-faced optical transparent prism; it has 4 piezo-electric converters, which converters are connected with ultrasonic oscillator through switch is such a manner that frames at microfiche are scanned in horizontal plane along two mutual perpendicular directions and along diagonal directions. Projection lenses have minimal resolution of 100 lines per mm.
 Projection optical system / 2313813
Projection optical system has light source, color wheel, two focusing objectives, fiber-optic element, microscopic mirror unit, projection objective and screen. Fiber-optic element has optical fibers integrated by common transparent envelope. The element has input and output edges. Input edge of fiber-optic element is made at angle to side surface of fiber-optic element. Light source is disposed at angle to side surface of fiber-optic element and it is made for direction of radiation through color wheel and transparent side surface of fiber-optic element to microscopic mirror unit. Projection objective is disposed between fiber-optic element and screen; the former is made for projection of radiation coming from output edge of fiber-optic element to screen.
 Sight with variable magnification / 2364900
Sight comprises objective, collective positive lens with grid applied onto its flat surface, pancratic turning system comprising two positive components and ocular. Objective is made of positive convexo-convex lens and negative meniscus arranged at d distance from it and inverted with its concavity to positive lens. Mirror coat is applied on central part of convex surface of negative meniscus. Behind negative meniscus there is a spherical mirror with opening in central part at distance D from objective. Spherical mirror is inverted with its concavity to negative meniscus of objective, and D>10d. Behind mirror there is negative concavo-concave lens introduced, being glued of positive meniscus and concavo-concave negative lens.
 Optic sight / 2364899
Sight comprises the following serially installed components: objective, mesh, two-component turning system and ocular. Additionally beam-splitter cube, three mirrors and positive components are introduced. Beam-splitter cube is installed between components of turning system, its beam-splitter plane is arranged in the form of diagonal facet, lower part of which is located closer to objective. On top above the cube there is an additional positive component glued of two lenses, above which the following components are installed: the first flat mirror parallel to beam-splitter cube facet, then the second flat mirror installed perpendicularly to the first mirror in front of focal plane of ocular, and the third mirror inclined to optical axis and inverted with their reflecting surface to ocular and installed between focal plane of ocular and the second component of turning system.
 Sight / 2364898
Sight comprises the following components along with direction of rays - objective, collective lens, turning system, the first mesh containing nontransparent dashes on transparent background and installed in ocular focus, ocular and the second mesh. Additionally beam-splitter cube is introduced, which is installed between the first mesh and ocular, beam splitter plane of which is inverted to the first mesh with its first end, and with its second end - to ocular, and three light diodes installed above the second mesh. The second mesh containing transparent dashes on nontransparent background is installed parallel to sight axis and cathetus facet of cube, which produced cube rib together with the first end of beam-splitter plane. Collective lens is installed in front of focal plane of objective.
 Optical system of endoscope / 2337606
Invention is intended for observation of narrow biological channels and remote cavities of a human body. The optical system of an endoscope contains objective, optical transferring system, light guide used for illumination. In addition transferring chamber, communication channel, television receiver, collimator are entered into system. The objective end is bridged to an input of transferring system, the end of transferring system is bridged to an ocular input, the ocular end is bridged to an input of the transferring chamber, the end of the transferring chamber is bridged to a communication channel input, the communication channel end is bridged to an input of the television receiver, the end of the television receiver is bridged to a collimator input.
 Optical sight for small arms / 2315936
The optical sight for small arms has a device for radiation of the laying mark, laying mark control device, device for correction of the laying mark, optical collimator unit and a power supply source with a switch. The device for radiation of the laying mark is made in the form of an electronic matrix with radiating elements. The laying mark control device is made in the form of a microcontroller with a decoder. The device for correction of the laying mark is made in the form of a microswitch.
 Instrument for daytime and night observation and aiming / 2310219
The instrument has a front-view mirror with a system of stabilization and aiming of the sighting line optically linked with the sight channel, which includes an optical module including the daytime and night channels. The instrument has also a radiator unit, scanning unit, photodetector unit, the output of the photodetector unit is connected to the input of the analog-to-digital converter, whose output is connected to the control electronics unit.
 Optical targeting device / 2276802
Optical targeting device for day and night observation consists of collimator system in form of two-les glued objective, made in form of negative and positive quasi-focal meniscuses, directed by concave surfaces to one another, light-splitting cube, positioned behind second positive meniscus, and light source, positioned outside optical axis. On concave surface of first from object negative meniscus, interferential spectrum-splitting cover is positioned. Light-splitting cube is glued together of two same prisms with interferential spectrum-splitting cover on glued hypotenuse side of one of prisms. One of leg sides of first prism along beams way is perpendicular to optical axis and directed towards objective, and close to second side light source is positioned. Relations displayed in formula of the invention are fulfilled by described device.
 Method for adjusting direction of viewfinder axis of two-chamber television system and device for realization of method / 2275750
Adjustment of viewfinder axis direction is performed in television cameras synchronized by frequency and phase, and is performed by means of reflective and electronic "meshed field" tables, parameters of which consider base distance along horizontal line between geometrical centers of photo-detectors of television cameras, and also by means of laser viewfinder, probe emission of which is performed in direction towards reflective table through groove, made in base of television system, in parallel to its mounting plane.
 Radio telescope antenna / 2421765
Radio telescope antenna has a main mirror reflecting surface which is assembled from movable control shields connected to corresponding systems for automatic control of their position. According to the invention, the device also includes piezoelectric elements which are rigidly attached on internal and external sides of the surface of each of the movable control shields of the antenna, as well as temperature compensation rods which are connected to cooling wire attached to the regular frame of the antenna and connected by the input and output to a cryogenic unit. Each temperature compensation rod is mechanically connected to a piezoelectric actuator with possibility of longitudinal displacement.
 Reflector lens / 2415451
Lens comprises the following components installed serially along with the direction of beam - main concave hyperboloid mirror with central hole, secondary convex hyperboloid mirror and lens system with optical force φ l.s., made of two lens components and installed behind the main mirror. The first component with positive optical force φ I, the second one in the form of a single lens with negative optical force φ II. Optical forces of lens system and its components meet the following condition: ![]() ![]() ![]() where φ m.s. - optical force of mirror system comprising main and secondary mirrors. Distance d between components meets the following condition: d=0.05-0.06d 0, where d 0 - distance between the main and secondary mirrors.
 Method of focusing axisymmetric radiation flux generated by wave nature source and optical system for realising said method / 2404444
Using an integrated periodic optical structure 4, having rational symmetry property, radiation flux 1 is broken into a series of elementary beams 3 and their direction of propagation is changed. The optical structure 4 includes a set of identical optical elements 5 with at least one reflecting surface on each. The reflecting surfaces have the shape of a double curved surface, stretching in the radial direction from the axis of symmetry of the radiation flux, which are bounded by continuous spatial curves 8 passing near the said axis 6, mainly with at least one common point 7 on the said axis of symmetry 6. A family of oblique rays whose focus lies beyond the axis of symmetry, including at infinity, is formed through the said reflecting surfaces in each elementary beam 3.
|
FIELD: physics.
SUBSTANCE: device has an image source, a mirror which receives light from the image source, and a concave aspherical mirror which direct light onto the windscreen. The mirror which receives light from the image source is convex aspherical. A concave aspherical mirror can also be placed between the mirror which receives light from the image source and the mirror which directs light onto the windscreen.
EFFECT: correction of distortions, improved correction of curvature and astigmatism of the formed image in a wide field of vision.
2 cl, 3 dwg
The invention relates to optical technique and can be used on vehicles, in particular cars to display track, navigational information, as well as information about the condition of the vehicle in the direct view of the driver.
A device for displaying visual information, including cathode ray tube and a projection lens, containing seven lenses; between the cathode ray tube and the projection lens set trapezoidal prism, and the input face of the prism is oriented at an acute angle to the screen of the cathode-ray tube, the first lens of the projection lens made in the form of an inclined positive meniscus facing concave surface to the cathode-ray tube, a second lens made of a positive biconvex linear-decentered and facing a convex surface to the cathode-ray tube, the third lens is made convex cylindrical and facing convex surface to an electron beam the tube, the fourth lens is made in the form of a positive meniscus facing convex surface to the cathode-ray tube, the fifth lens made in the form of a negative meniscus facing concave surface to the cathode-ray tube, the sixth lens made in the form of positively the first meniscus and facing concave surface to the cathode-ray tube, the seventh lens made of a positive biconvex, EN 2226292.
This device is intended primarily as an indicator pointing in the systems-of-sight and sights, mainly aircraft. The device is very difficult, which makes feasible its use in terrestrial civilian vehicles.
A device for displaying information on the windshield of the car that uses the reflection of light from the inner surface of the windshield and includes the image source in the form of a liquid crystalline matrix, the guide light on the mirror that reflects it and sends to the second mirror reflecting the light on the inside of the windscreen. Falling on this surface, the light is partially reflected and forms an image in a field of view of the driver EP 1215521 A2. However, this device can provide an image only in the narrow field of view that is not enough to display the amount of information necessary for effective navigation and safe control of the vehicle.
It is also known device for displaying visual information including the imaging unit based on LCD or led matrix, which sends the light to a concave spherical mirror, US 5140465. Then the light reflected by the second concave is peachescam mirror and impinges on the inner partially reflected the windscreen and reflects the image at a comfortable distance from the driver, however, the quality of this image is very low, because this device is not performed, the correction of curvature of field, astigmatism of the image and its distorsione distortion.
A device for displaying visual information on the windshield of the vehicle that contains the source image, which sends the light on a flat light receiving mirror. This light is reflected on a concave aspherical mirror, throwing light on the windshield; the light is partially reflected the inner side of the windshield. The field of view of the driver is generated virtual image generated by the source, EP 1291700 A1.
This solution, taken as a prototype of the present invention, allows to correct astigmatic distortion in the Central zone of the formed image; however, the device is a prototype does not allow to correct distorsione distortion and to obtain a sufficiently high quality images in a wide field of view. (Distorsione distortion significantly affect the image quality in a wide field of view.) In addition, this device does not have enough adjusts the curvature and the astigmatism of the image.
The present invention is to correct distorsione distortion, additionally, the task of improving the correction of the curvature and astigmat the PCA-generated image in a wide field of view.
According to the invention in the display of visual information on the windshield of the vehicle that contains the source image, the mirror receiving light from the image source, and a concave aspherical mirror, throwing light on the windshield, mirror receiving light from the image source, is made convex aspheric; between the mirror receiving light from the image source, and a mirror which focuses the light on the windshield, placed additional concave aspherical mirror.
The applicant has not identified any technical solution that is identical to the declared that allows to make a conclusion about conformity of the invention, the criterion of "Novelty".
The invention is illustrated by drawings, which shows:
figure 1 is an optical diagram of a device in accordance with claim 1 claims;
figure 2 is an optical diagram of the device according to claim 2;
figure 3 is the same as in figure 2, in a perspective view.
Device for displaying visual information on a windshield 1 of a vehicle, in this example, the vehicle includes a source 2 image representing a liquid crystal matrix with led backlight. The image source provides information about the vehicle speed, the fuel, the engine condition is of on-Board equipment, the readings of onboard cameras, including rearview and night vision, navigation information (GPS), as well as telecommunication information (mobile phone). All information to the source image supplied from the onboard computer of the vehicle. The device also contains a convex aspheric mirror 3, the receiving light from the source 2 image, and a concave aspherical mirror 4, a guiding light to the windshield 1. Between the mirrors 3 and 4 in the embodiment of claim 2 placed additional concave aspherical mirror 6. Mirrors 3, 4, 6 are made using the technology of diamond turning (Diamond Single Point Tuning) using machine Nanoform 250 manufacturing firms Prestech Inc., USA.
The device operates as follows. In the variant according to claim 1 claims the source 2 image directs light onto the mirror 3. Due to the fact that the mirror 3 is made convex aspheric, concave aspherical mirror 4 falls light beam, which has the structure (local density and the divergence of the rays), to compensate for distorsione distortion on the mirror 4 and the inner surface of the windshield 1. In the result, the observer, 5 may see in the direct and wider field of view for comfortable distance of the image is high enough quality.
In the variant according to claim 2 f is rmula of the invention the light, reflected from the mirror 3, falls on a concave aspherical mirror 6, which allows you to add, to improve the correction of the curvature and astigmatism of the image in a wide field of view. This significantly improves the quality of the image formed in the field of view of the driver. Manufactured and tested a prototype device.
1. The display of visual information on the windshield of the vehicle that contains the source image, the mirror receiving light from the image source, and a concave aspherical mirror, throwing light on the windshield, characterized in that the mirror receiving light from the image source, is made convex aspherical.
2. The device according to claim 1, characterized in that between the mirror receiving light from the image source, and a mirror which focuses the light on the windshield, placed additional concave aspherical mirror.
|
Projection optic system of home theater objective with internal compensation of projective screen distortions / 2326418