CN108132534B - Near-to-eye display system based on goggles form - Google Patents
Near-to-eye display system based on goggles form Download PDFInfo
- Publication number
- CN108132534B CN108132534B CN201711468207.1A CN201711468207A CN108132534B CN 108132534 B CN108132534 B CN 108132534B CN 201711468207 A CN201711468207 A CN 201711468207A CN 108132534 B CN108132534 B CN 108132534B
- Authority
- CN
- China
- Prior art keywords
- lens
- eye display
- vision device
- battery
- mos tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000004297 night vision Effects 0.000 claims abstract description 54
- 230000003287 optical effect Effects 0.000 claims abstract description 43
- 238000013016 damping Methods 0.000 claims abstract description 21
- 230000005540 biological transmission Effects 0.000 claims abstract description 18
- 230000004438 eyesight Effects 0.000 claims description 14
- 238000004026 adhesive bonding Methods 0.000 claims description 11
- 230000004075 alteration Effects 0.000 claims description 10
- 238000003384 imaging method Methods 0.000 claims description 5
- 229910000838 Al alloy Inorganic materials 0.000 claims description 2
- 239000000956 alloy Substances 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 abstract description 2
- 230000001012 protector Effects 0.000 abstract 2
- 210000003128 head Anatomy 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 239000006185 dispersion Substances 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 235000009537 plain noodles Nutrition 0.000 description 2
- 210000001747 pupil Anatomy 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/0101—Head-up displays characterised by optical features
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/017—Head mounted
- G02B27/0172—Head mounted characterised by optical features
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/017—Head mounted
- G02B27/0176—Head mounted characterised by mechanical features
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/0101—Head-up displays characterised by optical features
- G02B2027/011—Head-up displays characterised by optical features comprising device for correcting geometrical aberrations, distortion
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/0101—Head-up displays characterised by optical features
- G02B2027/0112—Head-up displays characterised by optical features comprising device for genereting colour display
- G02B2027/0116—Head-up displays characterised by optical features comprising device for genereting colour display comprising devices for correcting chromatic aberration
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/0101—Head-up displays characterised by optical features
- G02B2027/0123—Head-up displays characterised by optical features comprising devices increasing the field of view
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
Abstract
The invention discloses a near-to-eye display system based on a goggle form, and belongs to the field of optical equipment for display. The near-to-eye display system mainly comprises an eye protector main body, and a battery module, a switchable position optical module, a quickly detachable night vision device module and a wireless data transmission module which are arranged on the eye protector main body. The invention has the advantages that: the near-eye display system has a large field angle of about 35 °. The goggles can be connected with a night vision device, and the goggles can display television images of the night vision device; the television image of the gun sight can be wirelessly received and displayed; the television images of the night vision device and the gun sight can be switched and displayed; the wearer is not required to have an associated mechanical mechanism to assemble the knowledge store. Can accomodate near-to-eye display under non-user state, avoid sheltering from the person's of wearing sight, do not influence the normal use of other peripheral hardware in the equipment, adjustable damping threshold value, and under long-time frequent service condition, can guarantee higher reliability.
Description
Technical Field
The invention belongs to the field of optical equipment for display, and particularly relates to a near-to-eye display system in a goggle type.
Technical Field
Near-eye display systems, also known as head mounted displays, were primarily used initially in military and scientific research fields. The near-eye display system can display external video pictures, and improves the portability and the comfort of equipment.
At present, in the field of individual equipment, a near-eye display system is mostly equipped in a mode of being handheld or structurally integrated on a helmet, is large in size and heavy in weight and cannot be matched with certain individual equipment for use, such as an American military ANVIS-9 night vision device, the near-eye display system is worn on the helmet through structural integration, a power supply system of the near-eye display system is an external power supply and is worn on one side of the waist of a soldier, the night vision device is powered through a connecting power line, the ANVIS-9 night vision device needs to be turned over when in use, the position of the near-eye display system is adjusted until human eyes can watch a complete picture in the night vision device, the near-eye display system cannot be used with goggles due to the fact that the near-eye display system is large in size and can only be directly observed through.
Therefore, the display system is applied to the existing equipment, and portable equipment integrating protection, detection and attack is provided for individual combat, so that the development direction of future weaponry is formed.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a near-eye display system based on a goggle type.
In order to achieve the purpose, the invention provides the following invention scheme: a near-to-eye display system based on a goggle form mainly comprises a goggle main body, and a battery module, a switchable position optical module, a quickly detachable night vision device module and a wireless data transmission module which are arranged on the goggle main body.
The battery module is an anti-reverse battery module and supplies power to the optical module with the switchable position, the night vision device module capable of being rapidly assembled and disassembled and the wireless data transmission module through a basic circuit; the quickly detachable night vision device module transmits a television picture of the night vision device to the switchable position optical module through the connector for near-to-eye display in a display mode of the night vision device; the wireless data transmission module wirelessly transmits the television picture of the gun sight to the optical module capable of switching the position for near-to-eye display in a gun sight mode;
the battery module comprises a battery input, a bridge and a voltage output. The battery input part is mainly powered by a battery. The bridge part utilizes the switching characteristic of the MOS tube to control the on-off of the circuit, and the MOS tube has very small internal resistance, so that the extra power consumption generated by the MOS tube can be ignored. The voltage output part is the output voltage corrected by the bridge.
The battery module provides a first battery positive/negative input end, a second battery positive/negative input end, a voltage positive output end and a voltage negative output end; the circuit comprises two resistors and four MOS tubes; one path of the positive/negative input end of the first battery is connected with a first resistor in series and then is connected with a positive voltage output end, the positive voltage output end is connected with a source electrode of a second Mos tube in series, and a grid electrode of the second Mos tube is connected with a grid electrode of a fourth Mos tube in parallel and is connected with the positive/negative input end of the first battery in series; the drain electrode of the second Mos tube is connected in parallel with the drain electrode of the fourth Mos tube and is connected in series to the positive/negative input end of the second battery; the source electrode of the first Mos tube is connected in parallel with the first resistor. One path of the positive/negative input end of the second battery is connected with a second resistor in series and then is connected with a negative voltage output end, the negative voltage output end is connected with the source electrode of the fourth Mos tube in series, and the grid electrode of the first Mos tube is connected with the grid electrode of the third Mos tube in parallel and is connected with the positive/negative input end of the second battery in series; the drain electrode of the first Mos tube is connected in parallel with the drain electrode of the third Mos tube and is connected in series to the positive/negative input end of the first battery; and the source electrode of the third Mos tube and the second resistor are connected in parallel to the negative voltage output end.
The switchable position optical module comprises a near-eye display adjustable bracket and a near-eye display;
the adjustable support of near-eye display is open chain link mechanism, including connecting rod and damping pivot, the open chain connecting rod includes: the safety goggles comprise a first-stage connecting rod fixed in a goggle main body, a last-stage connecting rod connected with a near-eye display, and a middle connecting rod mechanism connected with the first-stage connecting rod and the last-stage connecting rod, wherein the middle connecting rod mechanism is a main transmission mechanism for adjusting the near-eye display, and a damping rotating shaft is a revolute pair in an open-chain connecting rod mechanism and serves as a rotating shaft of an adjacent connecting rod.
Preferably, the connecting rod and the damping rotating shaft are designed into an anti-rotating structure.
Preferably, the damping rotating shaft comprises an axis, a friction plate, an elastic sheet, a limiting sheet and a nut, the friction plate and the elastic sheet are connected with two adjacent connecting rods through the axis and the nut, and the limiting sheet limits the range of the adjustable angle of the adjustable support.
The near-eye display mainly comprises an optical module, an OLED micro-display and a shell.
The optical module comprises a relay compensation lens group and a prism component; the relay compensation lens group comprises a first lens, a second lens and a third double-cemented lens which are sequentially arranged; the prism component is formed by gluing a lens five, a prism six and a lens seven;
the first lens and the second lens are used for eliminating monochromatic aberration of the light source; the third double cemented lens is used for eliminating chromatic aberration; the prism component is formed by gluing a fifth lens, a sixth prism and a seventh lens and is used for rotating the image by 90 degrees;
the first lens is a double-concave lens, the OLED micro display and the second lens are respectively arranged on two sides of the first lens, and the OLED micro display is located on a focal plane of the first lens; the second lens is a convex-concave lens, and the first lens and the third double-cemented lens are respectively arranged on two sides of the second lens; the double-cemented lens III is formed by cementing a lens III and a lens IV, the lens III is a plano-convex lens, the lens IV is a plano-concave lens, and the lens II and the prism component are respectively arranged on two sides of the double-cemented lens III; the prism component is formed by gluing a five-light-emitting surface of the lens and a six-light-entering surface of the prism, and gluing the six-light-emitting surface of the prism and a seven-light-entering surface of the lens. The fifth lens and the seventh lens are both plano-convex lenses; the prism six is a right-angle trapezoidal prism, the bottom surface of the right-angle trapezoidal prism and the adjacent right-angle side surface respectively form the light incident surface and the light emergent surface of the prism six, and the inclined side surface and the bottom surface of the prism six form an included angle of 45 degrees.
In order to meet the imaging design requirements, the relative position relationship between the OLED micro display and the first lens and the relative position relationship between the OLED micro display and the first lens should meet the following requirements:
dO4＝f′4
wherein d isO4Is OLED microdisplay-to-lens spacing, f'4Is the focal length of the lens.
The optical path of the optical module is as follows: the OLED micro-display provides an image source, the image source passes through the optical system, divergent light rays emitted by the image source pass through the lens I and then are converged and emitted in a near-collimation mode through the lens II, converged light beams reach the prism component in a divergent state through the double-cemented lens III, and the prism component conducts proper collimation on the divergent light beams so as to ensure that the emitted light beams are totally reflected on the bevel edge surface of the prism component, and the utilization rate of light is improved. And emergent light of the prism component is collimated light beams, so that the eyes of a user are not tired when the user watches and uses the glasses for a long time.
The relay compensation group formed by combining the first lens, the second lens and the double-cemented lens can correct and compensate various aberrations of the balanced optical system: chromatic aberration, field curvature, dispersion, distortion and the like, so that the system has good imaging quality; a cemented lens is used which can fold the light path, making it 90 °. The two ends of the prism are respectively provided with a cemented positive lens which can converge the light path, so that the system has a larger view field and an exit pupil, and the size of the relay compensation lens group can be reduced. The OLED micro-display and the optical module can be used for displaying the field angle of the optical system by the prism near-eye with a large field angle, and have the advantages of light weight, small volume and safe and convenient use.
But quick assembly disassembly night-time vision device module mainly comprises the night-time vision device. But quick assembly disassembly night-time vision device module's structure is a buckle mechanism with electrical connection, including detaining position, draw-in groove, detain the position and include locking piece and switch, be located the night-time vision device tail-hood end, the draw-in groove is located goggles main part frame top, electrical connection is a connector, transmits night-time vision device video signal to the near-to-eye display in the goggles as the night-time vision device eyepiece.
Preferably, the buckle mechanism is a three-side buckle structure made of aluminum alloy materials, and the abrasion resistance of the buckle mechanism and the connection reliability of the night vision device and the goggles are improved.
Preferably, the locking block is provided with a locking structure at a locking position corresponding to the night vision device tail cover, namely, a semicircular boss is arranged on the inner side of the locking block, and a semicircular groove is arranged at a corresponding position in the night vision device tail cover and used for reliably fixing the locking block in a locking state of the night vision device.
The wireless data transmission module receives the video signal transmitted by the gun sight and transmits the video signal to the optical module capable of switching the position for displaying.
The near-to-eye display system in the goggles form has two working modes, namely a night vision device display mode and a gun aiming display mode, wherein the night vision device display mode is that an optical module at a switchable position displays a night vision device picture;
the gun sight mode, namely the goggles are connected with the gun sight system, and after the gun sight display mode is switched by using the keys, the pictures of the gun sight television are displayed in the optical module with the switchable position through transmission of the wireless data transmission module.
The invention has the advantages that:
1) the near-eye display system has a large field angle of about 35 °.
2) The goggles can be connected with a night vision device, and the goggles can display television images of the night vision device;
3) the television image of the gun sight can be wirelessly received and displayed;
4) the television images of the night vision device and the gun sight can be switched and displayed;
5) the wearer is not required to have an associated mechanical mechanism to assemble the knowledge store.
6) Can accomodate near-to-eye display under non-user state, avoid sheltering from the person's of wearing sight, do not influence the normal use of other peripheral hardware in the equipment, adjustable damping threshold value, and under long-time frequent service condition, can guarantee higher reliability.
Drawings
FIG. 1 is a block diagram of the overall structure
FIG. 2 is a front view
FIG. 3 rear view
FIG. 4 is a schematic view of the principle
FIG. 5 Adjustable support
FIG. 6 is a schematic view of a damping structure
FIG. 7 is a pictorial representation of an embodiment
FIG. 8 optical module
FIG. 9 is a schematic diagram of a relay compensation lens assembly
FIG. 10 Dual cemented lens
FIG. 11 prism member
FIG. 12 is an exploded view of a quick release structure
FIG. 13 shows a structure of a buckle
Fig. 14 structure diagram of tail cover of night vision device
FIG. 15 switch open state diagram
FIG. 16 switch locking state diagram
In the figure, 1-goggle main body, 2-battery module, 3-switchable position optical module, 4-quick detachable night vision device module, 5-wireless data transmission module, 6-first battery positive/negative input terminal, 7-second battery positive/negative input terminal, 8-voltage positive output terminal, 9-voltage negative output terminal, 10-first resistor, 11-second resistor, 12-second Mos tube 12, 13-fourth Mos tube, 14-first Mos tube, 15-third Mos tube, 16-first stage connecting rod, 17-first damping rotating shaft, 18-intermediate connecting rod, 19-second damping rotating shaft, 20-last stage connecting rod, 21-first axle center, 22-first friction plate, 23-second friction plate, 24-third friction plate, 25-a fourth friction plate, 26-a first elastic sheet, 27-a first limit plate, 28-a first nut, 29-a second shaft, 30-a fifth friction plate, 31-a sixth friction plate, 32-a seventh friction plate, 33-an eighth friction plate, 34-a second elastic sheet, 35-a second nut, 36-an optical module, 37-an OLED, 38-a housing, 39-a lens I, 40-a lens II, 41-a cemented lens III, 42-a lens III, 43-a lens IV, 44-a lens V, 45-a prism six, 46-a lens seven, 47-a buckling position 4, 48-a clamping groove, 49-a connector, 50-a locking block, 51-a switch, 52-a night vision instrument tail cover, 53-a male head, 54-a female head and 55-a semicircular boss, 56-semicircular groove;
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-16, the present invention provides a near-to-eye display system based on a goggle type, which includes a goggle main body 1, and a battery module 2, an optical module 3 capable of switching positions, a night vision module 4 capable of being quickly assembled and disassembled, and a wireless data transmission module 5, which are disposed on the goggle main body 1.
The goggle main body 1 is mainly used as a wearing part by adopting an LSR injection molding process and provides structural support for other modules.
The battery module 2 is an anti-reverse battery module and supplies power to the switchable position optical module 3, the quickly detachable night vision device module 4 and the wireless data transmission module 5 through a basic circuit; the quickly detachable night vision device module 4 transmits the television picture of the night vision device to the switchable position optical module 3 through the connector assembly for near-to-eye display in the display mode of the night vision device; the wireless data transmission module 5 wirelessly transmits the television picture of the gun sight to the switchable position optical module 3 for near-to-eye display in a gun sight mode;
in this embodiment, a first battery positive/negative input terminal 6, a second battery positive/negative input terminal 7, and a voltage positive output terminal 8 and a voltage negative output terminal 9 are provided; the circuit comprises two resistors and four MOS tubes; one path of a positive/negative input end 6 of the first battery is connected with a first resistor 10 in series and then connected with a positive voltage output end 8, the positive voltage output end 8 is connected with a source electrode of a second Mos tube 12 in series, and a grid electrode of the second Mos tube 12 is connected with a grid electrode of a fourth Mos tube 13 in parallel and is connected with the positive/negative input end 6 of the first battery in series; the drain electrode of the second Mos tube 12 is connected in parallel with the drain electrode of the fourth Mos tube 13 and is connected in series to the positive/negative input end 7 of the second battery; the source of the first Mos transistor 14 is connected in parallel with the first resistor 10. One path of the positive/negative input end 7 of the second battery is connected with the second resistor 11 in series and then is connected with the negative voltage output end 9, the negative voltage output end 9 is connected with the source electrode of the fourth Mos tube 13 in series, and the grid electrode of the first Mos tube 14 is connected with the grid electrode of the third Mos tube 15 in parallel and is connected to the positive/negative input end 7 of the second battery in series; the drain electrode of the first Mos tube 14 is connected in parallel with the drain electrode of the third Mos tube 15 and is connected in series to the positive/negative input end 6 of the first battery; and the source electrode of the third Mos tube 15 is connected with the second resistor 11 in parallel to the voltage negative output end 9.
In this embodiment, when the battery is loaded, the first case is: the battery positive electrode is in contact with a first battery positive/negative electrode 7 and the negative electrode is in contact with a second battery positive/negative electrode 8. After power-on, the first Mos tube 14 and the fourth Mos tube 13 are conducted, the second Mos tube 12 and the third Mos tube 15 are cut off, the positive voltage output end 8 outputs a positive voltage, and the negative voltage output end 9 is grounded; the second case is: the negative battery electrode is in contact with a first positive/negative battery electrode 7 and the positive electrode is in contact with a second positive/negative battery electrode 8. After power-on, the second Mos tube 12 and the third Mos tube 15 are conducted, the first Mos tube 14 and the fourth Mos tube 13 are cut off, the positive voltage output end 8 outputs positive voltage, and the negative voltage output end 9 is grounded.
The switchable optical module 3 includes a near-eye display adjustable bracket and a near-eye display.
The adjustable support of near-eye display is a three-link open chain mechanism, including first connecting rod 16, intermediate link 18, last connecting rod 20 to and first damping pivot 17 and second damping pivot 19, first connecting rod 16 one end is fixed in goggles main part 1, and the other end passes through first damping pivot 17 and connects intermediate link 18, intermediate link 18's the other end passes through second damping pivot 19 and connects last connecting rod 20, last connecting rod 20 is the fixing base of near-eye display simultaneously. The damping rotating shaft adopted by the invention has the advantages of simple structure, small volume and high reliability, and can provide a stable angle adjusting range for the goggles main body.
In this embodiment, the first damping rotating shaft 17 includes a first shaft center 21, a first friction plate 22, a second friction plate 23, a third friction plate 24, a fourth friction plate 25, a first elastic sheet 26, a first limiting plate 27 and a first nut 28; the first shaft center 21 is sequentially provided with a first friction plate 22, a second friction plate 23, a first-stage connecting rod 16, a first limiting plate 27, a through hole at one end of the middle connecting rod 18, a third friction plate 24, a fourth friction plate 25 and a first elastic sheet 26, and the tail end of the first elastic sheet is locked by a first nut 28; the first nut 28 is locked at the end of the first shaft 21, so that the first friction plate 22, the second friction plate 23, the third friction plate 24, the fourth friction plate 25, the first elastic sheet 26 and the first shaft 21 do not rotate relatively, and a rigid connection relationship is formed; the through holes at one ends of the first limiting sheet 27 and the middle connecting rod 18 are tightly matched with the first shaft center 21, so that relative rotation is not generated between the first limiting sheet 27 and the first shaft center 21 and between the middle connecting rod 18 and the first shaft center 21; the first-stage connecting rod 16 and the first shaft center 21 can rotate relatively;
the first limiting piece 27 is an annular body with a fan-shaped notch on the periphery, and the fan-shaped notch of the first limiting piece is matched with the convex block on the first-stage connecting rod 16, so that when the first-stage connecting rod 16 rotates relatively around the first axis 21, the rotation range of the first limiting piece is limited by the range of the fan-shaped notch;
the form and the number of the friction plates can be selected and adjusted according to actual needs; the form of the first limiting sheet 27 can be adjusted to a form that a convex block on the first limiting sheet 27 is matched with a groove on the first-stage connecting rod 16 according to actual conditions;
in this embodiment, the second damping rotating shaft 19 includes a second shaft center 29, a fifth friction plate 30, a sixth friction plate 31, a seventh friction plate 32, an eighth friction plate 33, a second elastic sheet 34, a second limiting plate 20, and a second nut 35; the second shaft center 29 is sequentially provided with a fifth friction plate 30, a sixth friction plate 31, a through hole at the other end of the intermediate connecting rod 18, a second limiting plate 20, a last-stage connecting rod 20, a seventh friction plate 32, an eighth friction plate 33 and a second elastic sheet 34, and the tail ends of the second friction plate, the sixth friction plate and the second elastic sheet are locked through a second nut 35; the second nut 35 is locked at the end of the second spindle 29,
so that the fifth friction plate 30, the sixth friction plate 31, the seventh friction plate 32, the eighth friction plate 33, the second elastic sheet 34 and the second shaft center 29 do not rotate relatively, and a rigid connection relationship is formed; the through holes at the other ends of the second limiting piece 20 and the middle connecting rod 18 are tightly matched with the second shaft center 29, so that the through holes at the other ends of the second limiting piece 20 and the middle connecting rod 18 and the second shaft center 29 do not rotate relatively; the final connecting rod 20 and the second axis 29 can rotate relatively;
the second limiting piece 20 is an annular body with a fan-shaped notch on the periphery, and the fan-shaped notch of the second limiting piece is matched with the convex block on the middle connecting rod 18, so that when the middle connecting rod 18 rotates around the second axis 29 relatively, the rotating range of the middle connecting rod is limited by the range of the fan-shaped notch;
the form and the number of the friction plates can be selected and adjusted according to actual needs; the form of the second limiting sheet 20 can be adjusted to a form that a convex block on the second limiting sheet 20 is matched with a groove on the intermediate connecting rod 18 according to actual conditions;
in this example, the head-mounted device has a small space, the near-eye display can only move on a plane perpendicular to the line of sight of the eyes of the wearer, the support requires certain controllability, and a plane three-link structure is selected.
In this embodiment, it is ensured that the near-eye display is always in a state perpendicular to human eyes during pulling of the last link 20.
In this example, screw up the nut, through the friction disc of extrusion connecting rod both sides, adjust the damping size, the friction disc carries out pressure compensation to the clearance that rotates for a long time and produce, guarantees that the pivot can not be because of producing not hard up frequently.
The near-eye display mainly comprises an optical module 36, an OLED micro-display 37, a housing 38.
The optical module 36 is provided with a relay compensation lens group and a prism member 43. The relay compensation lens group is provided with a first lens 39, a second lens 40 and a third cemented lens 41. The cemented lens III 41 is provided with a lens III 42 and a lens IV 43, and the prism part 43 is formed by cementing a lens V44, a prism VI 45 and a lens VII 46.
The first lens 39 and the second lens 40 are used for eliminating monochromatic aberration of the light source; the third double cemented lens 41 is used for eliminating chromatic aberration; the prism component is formed by gluing a fifth lens 44, a sixth prism 45 and a seventh lens 46 and is used for rotating the image by 90 degrees;
the first lens 39 is a double-concave lens, the OLED micro display 37 and the second lens 40 are respectively arranged on two sides of the first lens 39, and the OLED micro display 37 is positioned on a focal plane of the first lens 39; the second lens 40 is a convex-concave lens, and the first lens 39 and the third double-cemented lens 41 are respectively arranged on two sides of the second lens 40; the double cemented lens III 41 is formed by cementing a lens III 42 and a lens IV 43, the lens III 42 is a plano-convex lens, the lens IV 43 is a plano-concave lens, and the lens II 40 and the prism part 43 are respectively arranged at two sides of the double cemented lens III 41; the prism component 43 is formed by gluing a fifth lens 44 light-emitting surface and a sixth lens 45 light-entering surface, and gluing a sixth lens 45 light-emitting surface and a seventh lens 46 light-entering surface. The fifth lens 44 and the seventh lens 46 are both plano-convex lenses; prism six 45 is right trapezoid prism, the base face and the adjacent right angle limit face of right trapezoid prism constitute the income plain noodles and the play plain noodles of prism six 45 respectively, and the hypotenuse face and the base face of prism six 45 constitute 45 contained angles.
In order to meet the imaging design requirements, the relative position relationship between the OLED microdisplay 37 and the first lens 39 should meet the following requirements:
dO4＝f′4＝5.65mm
wherein d isO4Is OLED microdisplay-to-lens-39 pitch, f'4The focal length of lens one 39.
The optical path of the optical module is as follows: the OLED micro-display 37 provides an image source, the image source passes through the optical system, divergent light rays emitted from the image source pass through the first lens 39 and then converge and exit through the second lens 40 in a near-collimation manner, the converged light beams pass through the third double-cemented lens 41 and reach the prism component 43 in a divergent state, and the prism component 43 performs proper collimation on the divergent light beams to ensure that the emitted light beams are totally reflected on the bevel edge surface of the prism component 43, so that the utilization rate of light is improved. And the emergent light of the prism part 43 is a collimated light beam, so that the eyes of a user are not tired when the user watches and uses the glasses for a long time.
The relay compensation group formed by combining the first lens 39, the second lens 40 and the third cemented lens 41 can correct and compensate various aberrations of the balanced optical system: chromatic aberration, field curvature, dispersion, distortion and the like, so that the system has good imaging quality; a cemented lens 7 is used which can fold the light path by 90 °. The two ends of the prism are respectively provided with a cemented positive lens which can converge the light path, so that the system has a larger view field and an exit pupil, and the size of the relay compensation lens group can be reduced. The OLED micro-display 37 and the optical module 36 can be a prism near-eye display optical system with a large field angle, and have the advantages of light weight, small volume and safe and convenient use.
The quick detachable night vision device module 5 mainly comprises a night vision device and provides a switchable night vision device mode. The night vision module 5 is fixed to the goggle body 1 using a removable clip.
But quick assembly disassembly night-time vision device structure has electrical connection's buckle mechanism for an intermediate portion, buckle mechanism is including detaining position 47, draw-in groove 48, connector 49, detain position 47 and include locking piece 50 and switch 51, be located night-time vision device tail-hood 52, be a trilateral knot position structure, two couples of limit are constituteed by two rectangle bosss respectively promptly, two rectangle boss clearances are greater than rectangle boss length, the another side is constituteed by rectangular shape boss, its appearance keeps unanimous with night-time vision device tail-hood appearance radian, draw-in groove 48 is located goggles main body frame 7 top, correspond with detaining position 47, be a trilateral draw-in groove structure equally, two couples of limits are constituteed by two rectangle slots respectively, the slot position on trilateral and the clearance of goggles main body frame 7 upper surface all slightly are greater than detaining the boss thickness in position 47, connector 49 includes public head 53 and female head 54, public head 53 is located night-time vision device tail-, the female head 54 is located in the frame of the goggle main body 1, the night vision device tail cover 52 is designed with a locking structure at the locking position of the locking block 50, namely, a semicircular boss 55 is designed at the inner side of the locking block 50, and a semicircular groove 56 is designed at the corresponding position in the night vision device tail cover 52, so that the night vision device is locked by extrusion stress.
In this embodiment, before installing the night vision device, the switch 51 is moved toward the objective lens, the night vision device is inserted, and the assembly process of the night vision device can be completed by moving the switch 51 toward the eyepiece lens; during disassembly, the switch 51 is moved to the other side, and the night vision device is pulled out to complete the disassembly process of the night vision device.
The images of the quickly detachable night vision device module 4 and the wireless data transmission module 5 can be switched and displayed.
Claims (8)
1. A near-to-eye display system based on a goggle form mainly comprises a goggle main body, and a battery module, a switchable position optical module, a quickly detachable night vision device module and a wireless data transmission module which are arranged on the goggle main body; the battery module is an anti-reverse battery module and supplies power to the optical module with the switchable position, the night vision device module capable of being rapidly assembled and disassembled and the wireless data transmission module through a basic circuit; the switchable position optical module comprises a near-eye display adjustable bracket and a near-eye display; the quickly detachable night vision device module transmits a television picture of the night vision device to the switchable position optical module through the connector for near-to-eye display in a display mode of the night vision device; the wireless data transmission module wirelessly transmits the television picture of the gun sight to the optical module capable of switching the position for near-to-eye display in a gun sight mode; it is characterized in that the preparation method is characterized in that,
the battery module comprises a battery input, a bridge and a voltage output; the battery input part is mainly powered by a battery; the bridge part utilizes the switching characteristic of the MOS tube to control the on-off of the circuit, and because the internal resistance of the MOS tube is very small, the extra power consumption generated by the MOS tube can be ignored; the voltage output part is the output voltage after the bridge correction;
the battery module provides a first battery positive/negative input end, a second battery positive/negative input end, a voltage positive output end and a voltage negative output end; the circuit comprises two resistors and four MOS tubes; one path of positive/negative input of the first battery is connected with a first resistor in series and then connected with positive voltage output, the positive voltage output is connected with a source electrode of a second Mos tube in series, and a grid electrode of the second Mos tube is connected with a grid electrode of a fourth Mos tube in parallel and is connected with the positive/negative input of the first battery in series; the drain electrode of the second Mos tube is connected in parallel with the drain electrode of the fourth Mos tube and is connected in series to the positive/negative input of the second battery; the source electrode of the first Mos tube is connected with the first resistor in parallel; one path of positive/negative input of the second battery is connected with a second resistor in series and then connected with negative voltage output, the negative voltage output is connected with a source electrode of a fourth Mos tube in series, and a grid electrode of the first Mos tube is connected with a grid electrode of a third Mos tube in parallel and is connected with positive/negative input of the second battery in series; the drain electrode of the first Mos tube is connected in parallel with the drain electrode of the third Mos tube and is connected in series to the positive/negative input of the first battery; the source electrode of the third Mos tube is connected with the second resistor in parallel and connected with the negative voltage output;
the near-eye display mainly comprises an optical module, an OLED micro-display and a shell;
the optical module comprises a relay compensation lens group and a prism component; the relay compensation lens group comprises a first lens, a second lens and a third double-cemented lens which are sequentially arranged; the prism component is formed by gluing a lens five, a prism six and a lens seven;
the first lens and the second lens are used for eliminating monochromatic aberration of the light source; the third double cemented lens is used for eliminating chromatic aberration; the prism component is formed by gluing a fifth lens, a sixth prism and a seventh lens and is used for rotating the image by 90 degrees;
the first lens is a double-concave lens, the OLED micro display and the second lens are respectively arranged on two sides of the first lens, and the OLED micro display is located on a focal plane of the first lens; the second lens is a convex-concave lens, and the first lens and the third double-cemented lens are respectively arranged on two sides of the second lens; the double-cemented lens III is formed by cementing a lens III and a lens IV, the lens III is a plano-convex lens, the lens IV is a plano-concave lens, and the lens II and the prism component are respectively arranged on two sides of the double-cemented lens III; the prism component is formed by gluing a lens five light-emitting surface and a prism six light-entering surface, and gluing the prism six light-emitting surface and a lens seven light-entering surface; the fifth lens and the seventh lens are both plano-convex lenses; the prism six is a right-angle trapezoidal prism, the bottom side surface of the right-angle trapezoidal prism and the adjacent right-angle side surface respectively form a light inlet surface and a light outlet surface of the prism six, and the inclined side surface and the bottom side surface of the prism six form an included angle of 45 degrees;
in order to meet the imaging design requirements, the relative position relationship between the OLED micro display and the first lens and the relative position relationship between the OLED micro display and the first lens should meet the following requirements:
dO4＝f4′
wherein d isO4Is OLED microdisplay-to-lens spacing, f'4Is the focal length of the lens.
2. A near-eye display system in the form of goggles as defined by claim 1,
the adjustable support of near-eye display is open chain link mechanism, including connecting rod and damping pivot, the open chain connecting rod includes: the safety goggles comprise a first-stage connecting rod fixed in a goggle main body, a last-stage connecting rod connected with a near-eye display, and a middle connecting rod mechanism connected with the first-stage connecting rod and the last-stage connecting rod, wherein the middle connecting rod mechanism is a main transmission mechanism for adjusting the near-eye display, and a damping rotating shaft is a revolute pair in an open-chain connecting rod mechanism and serves as a rotating shaft of an adjacent connecting rod.
3. A near-to-eye display system in the form of goggles as claimed in claim 2, wherein said link and damping shaft are designed with anti-rotation features.
4. The near-to-eye display system based on the goggle type of claim 2, wherein the damping spindle comprises a shaft, a friction plate, a spring plate, a limiting plate and a nut, the friction plate and the spring plate are connected with two adjacent connecting rods through the shaft and the nut, and the limiting plate is used for limiting the adjustable angle range of the adjustable bracket.
5. A near-eye display system in the form of goggles as defined by claim 1,
the quick detachable night vision device module mainly comprises a night vision device; but quick assembly disassembly night-time vision device module's structure is a buckle mechanism with electrical connection, including detaining position, draw-in groove, detain the position and include locking piece and switch, be located the night-time vision device tail-hood end, the draw-in groove is located goggles main part frame top, electrical connection is a connector, transmits night-time vision device video signal to the near-to-eye display in the goggles as the night-time vision device eyepiece.
6. A goggle-based near-eye display system as recited in claim 5 wherein the snap mechanism is a three-sided snap structure fabricated from an aluminum alloy material.
7. A near-to-eye display system in the form of goggles as claimed in claim 5, characterized in that the locking piece is designed with a locking structure at the locking position in correspondence with the rear cover of the night vision device, i.e. a semicircular projection is designed on the inner side of the locking piece and a semicircular recess is designed in the rear cover of the night vision device at the corresponding position for secure fixation in the locked state of the night vision device.
8. A near-to-eye display system in the form of goggles as claimed in claim 5, wherein said wireless data transmission module receives video signals transmitted from the gun sight and transmits the video signals to the switchable position optical module for display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711468207.1A CN108132534B (en) | 2017-12-29 | 2017-12-29 | Near-to-eye display system based on goggles form |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711468207.1A CN108132534B (en) | 2017-12-29 | 2017-12-29 | Near-to-eye display system based on goggles form |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108132534A CN108132534A (en) | 2018-06-08 |
| CN108132534B true CN108132534B (en) | 2020-09-04 |
Family
ID=62393961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711468207.1A Active CN108132534B (en) | 2017-12-29 | 2017-12-29 | Near-to-eye display system based on goggles form |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108132534B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111474714A (en) * | 2020-04-20 | 2020-07-31 | 深圳市谦视智能科技有限责任公司 | Near-to-eye display device and wearable equipment |
| CN112857754B (en) * | 2021-02-24 | 2023-06-30 | Oppo广东移动通信有限公司 | Near-eye display detection lens and near-eye display device |
| CN117850044A (en) * | 2024-01-30 | 2024-04-09 | 深圳纳德光学有限公司 | Open binocular near-to-eye display device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4734939A (en) * | 1984-05-17 | 1988-04-05 | The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland | Aircrew headgear |
| CN101248915A (en) * | 2008-02-29 | 2008-08-27 | 吕晶 | Climbing helmet with infrared camera shooting and display function |
| CN101881665A (en) * | 2010-07-07 | 2010-11-10 | 深圳典邦科技有限公司 | Scouting device for criminal investigation or night search and rescue |
| CN102971658A (en) * | 2010-04-27 | 2013-03-13 | 安立世 | Remote activation of imagery in night vision goggles |
| CN205581410U (en) * | 2016-03-16 | 2016-09-14 | 中航华东光电（上海）有限公司 | Visual individual soldier helmetmounted display |
| CN106980179A (en) * | 2017-05-15 | 2017-07-25 | 中山目标电子科技有限公司 | A kind of Night vision helmet connector |
| CN107485100A (en) * | 2017-07-31 | 2017-12-19 | 清华大学 | A kind of intelligent helmet and its rescue air navigation aid for being rescued in building |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2804475T3 (en) * | 2010-10-19 | 2021-02-08 | Bae Systems Plc | Display device comprising an image combiner |
| US9042736B2 (en) * | 2012-02-09 | 2015-05-26 | N2 Imaging Systems, LLC | Intrapersonal data communication systems |
| WO2014091201A1 (en) * | 2012-12-10 | 2014-06-19 | Bae Systems Plc | Improvements in and relating to displays |
| US9766463B2 (en) * | 2014-01-21 | 2017-09-19 | Osterhout Group, Inc. | See-through computer display systems |
| US10551483B2 (en) * | 2015-10-01 | 2020-02-04 | Harris Corporation | Method and system for personal area radar |
| CN206224045U (en) * | 2016-08-31 | 2017-06-06 | 深圳超多维科技有限公司 | A kind of optics and head-mounted display apparatus |
-
2017
- 2017-12-29 CN CN201711468207.1A patent/CN108132534B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4734939A (en) * | 1984-05-17 | 1988-04-05 | The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland | Aircrew headgear |
| CN101248915A (en) * | 2008-02-29 | 2008-08-27 | 吕晶 | Climbing helmet with infrared camera shooting and display function |
| CN102971658A (en) * | 2010-04-27 | 2013-03-13 | 安立世 | Remote activation of imagery in night vision goggles |
| CN101881665A (en) * | 2010-07-07 | 2010-11-10 | 深圳典邦科技有限公司 | Scouting device for criminal investigation or night search and rescue |
| CN205581410U (en) * | 2016-03-16 | 2016-09-14 | 中航华东光电（上海）有限公司 | Visual individual soldier helmetmounted display |
| CN106980179A (en) * | 2017-05-15 | 2017-07-25 | 中山目标电子科技有限公司 | A kind of Night vision helmet connector |
| CN107485100A (en) * | 2017-07-31 | 2017-12-19 | 清华大学 | A kind of intelligent helmet and its rescue air navigation aid for being rescued in building |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108132534A (en) | 2018-06-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR102642848B1 (en) | Wearable optical display system for unobstructed vision | |
| US4775217A (en) | Night vision viewing system | |
| CN102346304B (en) | Image display apparatus | |
| US10488660B2 (en) | Wearable optical display system for unobstructed viewing | |
| CN100538437C (en) | A kind of optical system of Helmet Mounted Display | |
| CN108132534B (en) | Near-to-eye display system based on goggles form | |
| US8079713B2 (en) | Near eye display system | |
| US10302906B2 (en) | Eyepiece optical system for near-eye display, and head-mounted display device | |
| KR101629692B1 (en) | Night vision glasses | |
| US20090161225A1 (en) | Head Mounting Virtual Display Apparatus | |
| US20090128899A1 (en) | Optical system providing optical magnification | |
| WO2011156764A1 (en) | Optical system providing magnification | |
| CN201740465U (en) | Sighting telescope for shimmer night-vision gun | |
| TW200612188A (en) | Imaging lens and imaging apparatus | |
| CN104142575B (en) | A kind of onboard goggle-type helmet display optical system | |
| US5204774A (en) | Night vision goggle with improved optical system | |
| CN104049368B (en) | A kind of interpupillary distance adjustable penetration video eyeglasses optical engine system | |
| CN101943546A (en) | Sighting telescope for low-light night vision gun | |
| JPH0519130B2 (en) | ||
| CN116974082A (en) | Near-to-eye display optical device with adjustable diopter | |
| CN117008343A (en) | Optical system and VR equipment | |
| CN117310998B (en) | Optical system and near-eye display device | |
| CN220252301U (en) | Folding optical module and near-to-eye display device | |
| CN108333753A (en) | A kind of nearly eye display optical system of the prism of big field angle | |
| RU2711628C1 (en) | Night vision goggles |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A near eye display system based on goggles Granted publication date: 20200904 Pledgee: Industrial Bank Limited by Share Ltd. Xi'an branch Pledgor: XI'AN RAY-VISION ELECTRONICS TECHNOLOGY Co.,Ltd. Registration number: Y2024980020680 |