CN101311772A - Binocular viewing system - Google Patents
Binocular viewing system Download PDFInfo
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- CN101311772A CN101311772A CNA2008101360460A CN200810136046A CN101311772A CN 101311772 A CN101311772 A CN 101311772A CN A2008101360460 A CNA2008101360460 A CN A2008101360460A CN 200810136046 A CN200810136046 A CN 200810136046A CN 101311772 A CN101311772 A CN 101311772A
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Abstract
A binocular viewing system provides images from electronic display elements to the left and right eyes of a user transmitted via right eye and left eye display assemblies connected by a nose bridging element. The binocular viewing system includes an interpupillary distance adjustment mechanism to accommodate multiple users. Accommodation for vision correction and a focus mechanism may also be provided. Also, the binocular viewing system provides a virtual image at a distance less than infinity, in an arrangement that also accommodates a range of interpupillary distances. In other aspects, the binocular viewing system incorporates face curvature to more comfortably fit a user's head, and places the electronic display elements close to the user's eye, either in the line of sight, or within the nose bridging element.
Description
The application be that April 23, application number in 2004 are 200480017776.9, international application no is PCT/US2004/012587 the applying date, denomination of invention divides an application for the application for a patent for invention of " binocular viewing system ".
The cross-reference of related application
According to 35U.S.C. § 119 (e), the application requires in the rights and interests of the U.S. Provisional Patent Application the 60/465441st on April 25th, 2003, and the content of this application is hereby incorporated by.
Statement about the research and development of government-funded
Inapplicable
Technical field
The present invention relates to the binocular viewing system field.
Background technology
It is very general that the electronical record of information stores and processing, sound and image, electronic communication and electronic entertainment system have become, and the portable use of these technology develops rapidly.Had pair monocular instrumnent optical viewing system to be integrated into or spectacles on description.For example, referring to U.S. Pat 5886822.Also known two monocular instrumnent viewers have been formed the binocular vision device.For example, a kind of binocular glasses display in Figure 21 of U.S. Pat 6349001B1 and shown in Figure 21 of U.S. Pat 6091546.In the method that forms the binocular vision device, instruction does not connect the details of the nose frame of two eyepieces.
Usually, the optics of binocular viewing system is connected on the Mirror frame structure, this Mirror frame structure extends across face and is positioned at user's eyes front.U.S. Pat 5129716 is examples of wearable stereoscopic display device, and its utilization extends across face and is positioned at the transparent mirror holder of eyes front, but this mirror holder is not carried out optical function to the transmitted light from the image display to eyes.The substitute is, the optics in the optical system of image display separates with mirror holder, and mirror holder is used for installing and supporting these opticses.
Summary of the invention
The present invention relates to binocular viewing system, it improves comfortableness and availability to the user, and particularly for the application such as DVD and the observation of other videos, under observation, the user wears this unit a period of time.By providing a kind of binocular viewing system to realize these purposes, wherein optics is a self-supporting, and does not need to be connected on the mirror holder of facial front.Be positioned at the mirror pin components of side this binocular viewing system of ear upper support the user.This binocular viewing system considers that also the interpupillary distance between the different user is poor.Can also regulate position less than the virtual image at the comfort distance place of optics infinite distance.This binocular viewing system can also provide focal adjustments and vision correction for the user with incomplete eyesight.
In one embodiment, binocular viewing system of the present invention provides left eye and the right eye display that connects by the nose frame.For example can regulate each display with respect to the light guide elements that this nose frame slides by providing, this permission is regulated according to various interpupillary distances.Can be to reduce cost and the mode of weight reduction is made this binocular viewing system.
In another embodiment, binocular viewing system of the present invention can adapt to the user with certain interpupillary distance scope by the stationkeeping of the virtual image that the user is seen in the position less than the infinite distance.In one embodiment, the optical axis of the display assembly of every eyes is set to move the virtual image towards the center.In another embodiment, in nose frame element, provide pivoting point.
In another aspect of this invention, this binocular viewing system more cosily cooperating user's head, and is placed electronic display elements near user's eyes in conjunction with facial curvature, perhaps in sight line, perhaps in this nose frame element.
Description of drawings
According to invention will be more fully understood below in conjunction with detailed description that accompanying drawing carried out, in the accompanying drawings:
Fig. 1 is the schematic plan according to binocular viewing system of the present invention;
Fig. 2 schematically shows for what the binocular viewing system of Fig. 1 used and looks around (see-around) optics;
Fig. 3 schematically shows direct-view (see-through) optics for the binocular viewing system use of Fig. 1;
Fig. 4 A is the side view of the binocular viewing system of Fig. 3;
Fig. 4 B is the side view that spring load is attached to the binocular viewing system shown in Figure 3 in the passage;
Fig. 5 schematically shows the binocular viewing system that is installed in the Fig. 3 in the shell;
Fig. 6 A is the exploded view that increases the spectacle frame of correcting lens to the binocular viewing system of Fig. 3;
Fig. 6 B is spectacle frame and the correcting lens assembling view afterwards among Fig. 6 A;
Fig. 6 C is the spectacle frame of underframe of expression binocular viewing system shown in Figure 3 and the side view of correcting lens;
Fig. 7 represents to make up the binocular viewing system of spectacle frame shown in Figure 6;
Fig. 8 represents to be installed to the binocular viewing system on the spectacle frame that does not add correcting lens;
Fig. 9 schematically shows the focal adjustments mechanism that uses for binocular viewing system;
Figure 10 is the viewgraph of cross-section of the focal adjustments mechanism of Fig. 9;
Figure 11 A represents the photoconductive tube of binocular viewing system, and it comprises whole attachment rail;
Figure 11 B represents the photoconductive tube of binocular viewing system, and it comprises whole attachment rail and Circuits System cavity;
Figure 12 is illustrated in the binocular viewing system that has the Circuits System cavity on the nose frame;
Figure 13 is illustrated in the binocular viewing system that has service loop cavity in the mirror leg;
Figure 14 is the schematic plan of the binocular viewing system that can be seen by the people with certain interpupillary distance scope;
Figure 15 is another top view of the binocular viewing system of Figure 14;
Figure 16 A and 16B are the synoptic diagram of another embodiment with binocular viewing system of pivotable interpupillary distance governor motion;
Figure 17 is the synoptic diagram of an embodiment again of the binocular viewing system that can be seen by the people with certain interpupillary distance scope;
Figure 18 is the schematic elevational view of another embodiment of binocular viewing system shown in Figure 17;
Figure 19 is the side view of the binocular viewing system of Figure 18;
Figure 20 is the vertical view of the binocular viewing system of Figure 18;
Figure 21 is the synoptic diagram in conjunction with the binocular viewing system of facial curvature;
Figure 22 is another embodiment in conjunction with the binocular viewing system of facial curvature;
Figure 23 is another view in conjunction with the binocular viewing system of facial curvature and wide visual field;
Figure 24 is the synoptic diagram that has than another binocular viewing system of high power;
Figure 25 is the synoptic diagram of optics of the binocular viewing system of Figure 24;
Figure 26 is the synoptic diagram of another embodiment of optics of the binocular viewing system of Figure 24;
Figure 27 is the synoptic diagram of another embodiment of optics of the binocular viewing system of Figure 24;
Figure 28 is the synoptic diagram of another embodiment with binocular viewing system of high power;
Figure 29 is the synoptic diagram of optics of the binocular viewing system of Figure 28;
Figure 30 is the synoptic diagram of another embodiment of optics of the binocular viewing system of Figure 28;
Figure 31 is the synoptic diagram according to the embodiment of whole binocular viewing system of the present invention;
Figure 32 is the synoptic diagram of observing system, and it combines binocular viewing system of the present invention; And
Figure 33 is the block scheme of the interface controller of Figure 32.
Embodiment
Fig. 1 represents first embodiment according to binocular viewing system of the present invention.This binocular viewing system has 5, one of a pair of display assemblies and is used for right eye, and one is used for left eye.Each display assembly all comprises electronic display elements 30, LCD as known in the art or other devices.Each display element also comprises transparent light guide elements 10.A light guide elements comprises a plurality of opticses, comprising eyepiece component, will be sent to user's right eye from the image of display element, another light guide elements comprises a plurality of opticses, comprising eyepiece component, will be sent to user's left eye from the image of display element.For example, with reference to figure 2, in the method for looking around, steering reflection mirror 20 and eyepiece 30 form the eyepiece component by transparent mechanical conduit 10 supportings, make light be transmitted to eyes from display 30, and be represented as light 35.Another example as shown in Figure 3 in the direct-view method, transmits (relay) to polarising beam splitter 45 from the light 35 of display 30 by conduit 10, arrives focusing mirror 60, and returns by this beam splitter.Light passes quarter-wave plate 46 for twice, therefore by beam splitter 45 reflections, and is delivered to eyes.
This binocular viewing system is adjustable, so that be fit to the people of wide region.More particularly, this observing system has the governor motion that is used to regulate interpupillary distance (IPD).IPD is the distance between user's pupil, its must and the pupil of the eyepiece component of this observing system between apart from rough alignment.
The binocular system need aim to the optical subsystem of left eye and right eye image transfer with close tolerance.Perpendicular displacement in object plane must be less than 30 microns, and the angular distance of the central ray of left eye and right eye should be less than 5 minutes along the arc of Z-axis.The IPD governor motion of this system can keep this aligning.
IPD governor motion of the present invention comprises nose frame element, and it remains on position placed in the middle, user's nose top.Right and left display assembly is installed on this nose frame element movably.This right side and left display assembly and nose frame element self-supporting ground do not need to be connected to for this purpose on the mirror holder of facial front on user's face.Provide the mirror pin components in the opposite end of this right side and left display assembly, in order to this binocular viewing system frame on user's ear.Except correcting lens is installed, mirror holder can also be provided, this is further described below.
Refer more especially to Fig. 1,4A and 5, the preferred embodiment in the IPD governor motion comprises the connection track 100 of frame on nose.Track 110 is along top (or end) face of transparent plastic light guide pipe and be installed on this conduit.Track 110 comprises the passage as dovetail groove or other inclined-planes, this passage be connected track 100 interlockings, shown in the viewgraph of cross-section among Fig. 4.Therefore, photoconductive tube can freely move horizontally but can not rotate.
In interchangeable embodiment, joint can be spring-loaded or otherwise biasing, thereby forces the edge of being with chamfering jointly along a side, so that manufacturing tolerance is taken into account.In the embodiment shown in Fig. 4 B, spring 111 forces and connects the side of track near the passage of band dovetail groove, makes that the dovetail groove in track 110 is a bit larger tham the rotation minimum that produces when connecting track 100.Wire wound compression spring shown in Fig. 4 B; Should be appreciated that, can use the spring of compound spring and other types, as leaf spring, so that force this connection track near channel surface.
The embodiment that is noted that these tracks also can have bending channel, and photoconductive tube has the bending that is complementary, thereby when by when moving of track regulated IPD, but slight modification optical convergence angle (γ in Figure 15).This has following benefit, that is, focusing distance and focal plane distance in the IPD scope are mated better, thereby makes the difference minimum of these two distances.
Nose pad 210 is connected on the track 100.(referring to Fig. 1 and Fig. 5.) these nose pads 210 are guaranteed the center above right and left display assembly this track when this track is free to slide remains on user's nose, thereby adjusting IPD.
Be also noted that, sliding axle can with optical axis alignment.Optical axis can tilt, and eyes is seen be positioned at the stereo-picture at fixed range place.But, the translation of photoconductive tube 10, the sight line when more particularly the translation of the pupil of optical system should be watched distant object attentively perpendicular to the user, and should be in surface level.Alignment rail can place on the end face or bottom surface of optical element, perhaps places on these two surfaces.
There is improvement in system of the present invention than the optical system of prior art, and in the optical system of prior art, pupil enough needs greatly and not to regulate, but optical system must be very big and very heavy.System of the present invention provides more comfortable design by the optical system of less more appropriate size is regulated to combine with IPD.
Can at random be installed in the shell 200, as shown in Figure 5 in the system shown in the above-mentioned accompanying drawing.This shell can have track or other structures, thus in order to the mounting of the aforementioned optical system of sliding will aim at and regulating system be integrated in the shell.Mirror leg 220 can be connected on the shell.The mirror leg can comprise audio converter.
With reference to figure 6A-C, 7 and 8, a kind of binocular viewing system is provided, this system allows user's incomplete eyesight is carried out extra rectification.This observing system is installed on the spectacle frame, and spectacle frame is designed to the eyesight that eyeglass is corrected the user can be installed.This mirror holder can be designed to whether install correcting lens all has attracting outward appearance.
Fig. 6 A illustrates a kind of mirror holder 300, and it maintains the glasses optical system, and is supported by the binocular optical system shown in Fig. 1-5.This spectacle frame has dismountable eyeglass retainer 320, and when eyeglass 313 was installed, this eyeglass retainer was the part of the collar, does not use this eyeglass retainer when eyeglass not being installed.Mirror holder 300 is made and is looked very attractive, even also like this when not having eyeglass 313 and eyeglass retainer 320.Screw 312 by hinge 310 and nose pad place is connected eyeglass retainer 320 (left side and right), and this nose pad is coupled among tap part (tappedsection) 311 in the eyeglass retainer 320.Fig. 6 B illustrates the spectacle frame that has eyeglass, and Fig. 6 C illustrates the side view that the binocular vision optical system is installed.
Fig. 7 illustrates the spectacle frame that the correcting lens and the different patterns of binocular vision optical system are installed.The eyesight that eyeglass 330 is corrected the user.These eyeglasses are installed in the mirror holder, therefore between this viewing optical system and user's eyes.Fig. 8 illustrates this system that does not have correcting lens.Like this, although these accompanying drawings show conventional glasses, it all is fashionable and attracting also mirror holder can being designed to when having or do not have eyeglass.Mirror holder can be made by molded plastics, mach metal, is perhaps made by other materials known in the spectacle frame field and technology.
Fig. 6 C illustrates the side view that the shell that optical system 325 is described is connected to mirror holder 300.Can make in many ways mirror holder 300 is linked to each other with optical system, comprise the ball joint or the pivotal engagement that are used for adjustability, and other methods of attachment, as machinery, clamping or magnetic support.
In addition, left and right eyeglass retainer 320 can form single eyeglass retainer, and it maintains two eyeglasses, and wherein, eyeglass can be to be fixed in the collar retainer semi-durablely.This eyeglass keeps system to be installed in many ways on the mirror holder 300, comprises using foregoing screw, use clamp device, magnet or other bindiny mechanisms.This feature allows many users to use mirror holder 300, and each user can install the lens of oneself when this system of use.
Another embodiment that corrects the incomplete eyesight of user has utilized focal adjustments mechanism, and is shown in Figure 9.By obtaining this adjusting optically with respect to this optical system mobile display (for example, LCD and back illumination device).This for the distance of mobile object plane and therefore the distance of mobile virtual image face have direct influence.Can obtain focal adjustments by in shell, setting up mechanical fastening system to make the user adjust this distance.This mechanism must not change mobile this display under the display situation aligned with each other.For this reason, advantageously display assembly directly is installed to the end of photoconductive tube, and does not use steering reflection mirror 40 (Fig. 2).Fig. 9 illustrates this system.Display is installed in the certain carriers 410 in the particular shell 420, and this particular shell is installed on the photoconductive tube 430.
By screw rod 450 finger wheel 440 is linked to each other with carriage 410.The rotation finger wheel moves this display bracket.Only several millimeters the motion that is noted that display bracket just can obtain whole focusing ranges, and it has adjustable virtual image distance between about 25cm and infinite distance.
Figure 10 illustrates the viewgraph of cross-section that how display bracket 410 is installed in the shell that forms assembly 420.The dovetail passage or other passages that form accurately are positioned at carriage 410 in the assembly 420, and it is connected on the optical system rigidly, so that remain on the aligning in the whole focusing range.For the situation of LCD, this shell comprises back side light.In final alignment procedures, with this display gummed or otherwise be fixed in this shell as the final step of assembling.
In making this binocular viewing system, wish to obtain minimum possible cost.If, can obtain low cost so by injection molding and by with aligning, focal adjustments be easy to assemble required feature and be embedded in the parts.Photoconductive tube can form parts, and it comprises that being used for IPD regulates required dovetail system or rail system, and whole eyepiece and/or field lens.For the viewer that does not utilize IPD to regulate, can in shot molded operation, form a left side and right photoconductive tube and make as a whole parts.
The photoconductive tube that has whole track 550 and whole eyepiece 560 shown in Figure 11 A.Can increase other features and simplify the assembling of this photoconductive tube in required shell.For example, can increase registration features, this feature can make the assembly 420 among Figure 10 be snapped on the photoconductive tube with correct registration.Then can this conduit and shell gummed or ultrasonic soldering or other modes is fixed to one another.
In some designs, it is favourable only having a cable that arrives head.This need link to each other a left side by lead with right display, these leads are near a side setting of this photoconductive tube, preferably top side or bottom side.These leads can comprise flexible circuit.Can form shallow cavity 570 in injection-molded technology, it provides the space for flexible circuit or other wirings, as shown in Figure 11 B.In case insert this flexible circuit, cavity just fills up the dovetail embolus of the suitable thickness that is complementary.
In this flexible circuit or 580 cavitys 581 that can extend in the nose frame 582 that connect up.Referring to Figure 12.Can adopt the service loop (service loop) in the crooked circuit to allow the necessity in the wiring lax, thereby allow to regulate interpupillary distance by utilizing track 100 previously discussed and 110 to move conduit 10.Cavity in the nose frame 582 can be formed and allow conduit 10 to slip into and skid off this nose frame, for example, by shown in the distance 590.Nose frame 582 itself is adhered on the track 100 to keep aligning.This conduit and nose frame can be made by injection-molded, to obtain tighter tolerances and low manufacturing cost.
As interchangeable scheme, as shown in Figure 13, can in the right side that holds display assembly 420 and left mirror leg shell 595, place service loop 585.In this case, cable 580 can be fixed on the track 100.This service loop allows conduit 10 to move with respect to nose frame 582.
In nose frame and other local weight of using cavity can reduce this system.Also can in photoconductive tube, adopt cavity, as long as suitably change the focal length of these eyeglasses.
Electronic equipment can be integrated in the mirror leg 220 shown in Figure 5.This need use as little LCD 230 of KopinCyberdisplay and have video driver circuit and the little printed circuit board (PCB) of voicefrequency circuit.Can in mirror leg 220, embed loudspeaker and microphone by technology known in the art.
Another binocular system that can be observed by the people with certain interpupillary distance scope has been shown among Figure 14 and 15.With display 630, be connected to transparent opto-mechanical conduit 610 and eyepiece component 620 as transmission liquid crystal display, the light that therefore makes light 670 expressions is from back side light 640 transmission display devices 630 and photoconductive tube 610, and is delivered to glasses by assembly 620.If display 630 is self-emissions,, so just do not need back side light 640 as Organic Light Emitting Diode (oLED) display.Utilize steering reflection mirror 659 reflected light, make its scioptics 660 arrive eyes then.This steering reflection mirror can comprise metallic coating, can utilize total internal reflection, maybe can utilize the interference coatings that is used to reflect selected wavelength known in the art.Eyeglass 660 can be single eyeglass (singlet), two lens (doublet), diffraction, holographic or have the vergence that changes light and other character that allow to observe the virtual image that is positioned at the comfort distance place.
If the spacing 691 of eyeglass 660 is corresponding to user's interpupillary distance (IPD), the direction of gaze of observing the picture that is positioned at the infinite distance towards eyes will be straight so.In this case, angle [alpha] that is associated with catoptron and β are 45 °.But the present invention makes this look like to look that not being to be positioned at the infinite distance provides improvement for this system by the position of adjusting the virtual image.This all is important in any system of the virtual image that is provided at the stable viewing distance place between 25cm and the 5m to the user.In this scope, the user is with several mode viewing distances, comprise that convergence that (in other modes) watch attentively by the user comes judging distance (as determined by eye rotation), and by judging that focal plane (position of the muscle by making eyes focusing is determined) comes judging distance.In order to produce with the observed comfortable picture of certain depth, eyes should turn to the approximate angle that is used to observe the material object that is positioned at this distance.The display that is used for the 3-D space image that is focused at that regulation is watched attentively also is important.
If the direction of gaze of two eyes of user is parallel, observe the virtual image that is positioned at the infinite distance so.As shown in figure 15, under the situation about assembling for the direction of gaze of two eyes, form the virtual image at distance 105 places of leaving the observer.Can only change the position of this virtual image by the virtual image in mobile a little every the eyes in center.For example, in one embodiment, display 630 moves with respect to the optical axis of eyepiece component 620.If it is acceptable from the axle performance that eyeglass 660 provides, for example, as utilize suitable aspherical lens designing institute to produce, this user observes the picture that is positioned at distance 105 so.Should be for example by fixing in assembling process or correspondingly regulate this focus by aforesaid mechanism, thereby the difference minimum of focal length and focusing distance.The optical interval 106 of eyeglass is set at can be less than the distance of User IP D107.Therefore, as shown in Figure 15, eyes turn to the virtual image with angle γ.The diameter of eyeglass 660 allows to observe this picture by the people with certain IPD scope.
Distance 109 can be adjustable, and to adapt to user's IPD scope, for bigger IPD, this distance is bigger, and for less IPD, this distance is less.Like this, can use the adjustable stationary installation that viewer is remained in the mirror holder of head to change distance 109, allow cosily to use this facilities for observation by the people of different IP D.For example,, and DBL 106 is set at 60mm, in the 25mm scope, adjusts distance 109 so the IPD from 60mm to 61.5mm will be provided scope if virtual image distance 105 is set at 1m.
Figure 16 A and 16B illustrate interchangeable embodiment, wherein, pivoting point 120 are installed in observer's nose frame.In this case, the angle addition that angle γ and this pivoting point place introduce causes the variation that optical axis is bigger, therefore cause the sighting distance 105 of this virtual image ' big variation.Can use such pivot that facilities for observation is more suitable in the people with big IPD 107 '.
With another embodiment of the combination of invention shown in Figure 15,16A and the 16B, form the system of the virtual image that is not positioned at the fixing of infinite distance and assembles towards the quantitative inclination at center shown in Figure 17 by utilizing optical axis.In this case, by coming the angle α of accommodation reflex mirror 659 with respect to the direction of gaze towards the point of infinite distance, and the optical axis that is associated of eyepiece and display obtains.In this case, the reflection full-shape β on the optical axis can keep 90 °, but angle α is less than 45 °.This has in the effect that allows eyeglass and display to keep almost or optical system is tilted fully axially the time.Another advantage of this design is that a left side and the right eye virtual image are easy to be focused at the stable viewing distance place between 1m and the 2m.
No matter whether transparent optical conduit 610 is used in the optical design, can use the such optical tilt shown in Figure 15,16A, the 16B and 17.For example, in Figure 18 and 19, show and utilize eyepiece 620, display 630 and back side light 640, but do not use the simplification glasses display design of photoconductive tube.In this case, two eyepieces hang from machinery mount 175, and this machinery mount also carries wiring and IPD adjustment structure (if you are using).Figure 20 illustrates vertical view, and it illustrates according to the inclined light shaft of the present invention among Figure 16 A, the 16B.
According to a further aspect in the invention, can increase the curvature (so-called " facial curve ") of following facial optical system by suitably changing this optical system.Figure 21 illustrates catoptron 762 and the eyeglass 760 that is inserted in the solid light conduit 764, thereby makes light 770 be delivered to eyes from display vertically.Because the position of catoptron that is used for facial curve is at the reverse direction that is used to assemble, therefore, it is useful introducing wedge 766 after eyeglass 760.This has kept the axial character of optical system, and can adjust wedge 766 as required to guarantee the axial optical alignment between chief ray 770 and this eyeglass.
Be noted that this photoconductive tube needs not be solid; It also can be hollow to reduce weight.If this conduit is made hollow, can change optical path length so.The replaceable eyeglass that utilizes different focal can be adopted, perhaps interchangeable design can be adopted.Figure 22 shows interchangeable scheme, and wherein eyepiece 760 moves to mirror leg 772.In this case, place this display at distance 774 places of the focal length that approximates eyepiece 760.Watch this virtual image by catoptron 776 and 778, this virtual image is remote in this case.Conduit 764 can be solid or hollow.In this case, angle α should be set at light 770 is appeared from the infinite distance, and therefore is parallel to direction of gaze.As shown in Figure 22, wedge 780 fully can be extended across the space between two, perhaps can only provide this wedge in each catoptron front.Be made for relatively flat if will be positioned at the front surface of the conduit of eyes front, will have insignificant distortion so.In this embodiment, can be by making the direct-view system to catoptron 776 is partly silver-plated, thus the display light of the required ratio of transmission and surround lighting.Figure 23 illustrates another embodiment, wherein provides a plurality of catoptrons 776 every eyes front.If give these mirror portion ground silver-plated, light 770 will reflect on ground, first catoptron, 776 tops so, and partly be transmitted to second catoptron 776.Silver-plated by adjusting, light 770 can this means that the user watches the wide visual field of display 730 from all catoptron 776 transmissions equably.Be noted that separately or to be used in combination interchangeable coating, comprise interference coatings, hologram, dichroic coating etc., have the system of the even direct-view transmission and the even transmission of light 770 with generation.
Figure 24 is illustrated in another improvement in the binocular vision design.In the present invention, LCD830 is moved to contiguous lens systems 820.Photoconductive tube 810 transmissions are from the light of LED840.By LCD being moved to contiguous this lens subassembly, shortened focal length, this means to obtain higher magnification.Be noted that unpacked LCD mainly is a glass; Therefore, if use unpacked LCD, it will can not make the user take sb's mind off sth especially and see it near Lens assembly 820 so.Like this, the environment visual field that has kept the user.Interconnection circuit system 800,801 can be formed by the Kapton flexible circuitry, and can be stacked in the top of photoconductive tube 810, and cannot see in the visual field.
The optical design of each lens systems 820 shown in Figure 25, this illustrates vertical view, but interconnection 800 is not shown.Central ray 870 is delivered to LCD830 from back side light 840 by photoconductive tube 810.(be noted that if use the self-emission display, as oLED, display 830 emits beam 870 so.) light 870 is delivered to catoptron 859 from this display, reflexes to eyepiece 860 thereupon.This light is delivered to eyes from this eyepiece.If 860 light path equals the focal length of this eyeglass from display 830 to eyeglass, will at infinity observe picture so.For the situation of catoptron to set with respect to display 830 angles at 45, physical path length will equal the width 889 of conduit.So, light path is that refractive index n removes physical length 889.For example, if the refractive index of the material 858 between display and the object lens is 1.5, and physical length 889 is 1cm, and light path is 6.7mm so.Therefore, this system can realize low-down f number and high power.This system has benefited from using aspheric surface double lens or triplet lens to reduce aberration as eyepiece 860.Eyepiece 860 also can utilize diffraction element in its surface to come further aberration correction.Longer if desired focal length, material 858 can be air (free space) so, perhaps can be by towards back side light 840 mobile displays or by increasing distance between eyepiece 860 and the display 830 increasing a spacer between eyepiece 860 and the optical material 858.Optical material 858 can comprise the material identical or different with photoconductive tube 810.These materials can include but not limited to polymethylmethacrylate (PMMA), polycarbonate resin, epoxy resin, urethane, cyclenes, glass and other optical materials known in the art.
Figure 26 illustrates the equivalence design that utilizes reflection liquid crystal display, as being made by Displaytech company limited, III-V company and Microdisplay company.Type is considered in optical design among optical design consideration and Figure 25; But,, replace catoptron 859 with polarising beam splitter 863 for reflective LCD.Beam splitter 863 makes polarized light be delivered to reflective display 831.Display 831 rotates to form image the polarisation of light that incides some pixels, and it reflects back into beam splitter 863 with light, and this beam splitter is as the analyzer in the observing system and will reflex to eyepiece 860 from the light of required pixel.This system has benefited from the long distance between display 831 and the back side light, and it is used for collimated light and intensifys ratio.Also can in conduit 810, adopt collimation lens 867 arbitrarily, thereby further improve the collimation of illumination light.
As shown in Figure 27, can also adopt collimation lens 867 in the porch of conduit.It is desirable to, another part by adopting photoconductive tube 822 and steering reflection mirror 868 and light source 840 is placed on and lens 867 places separated by a distance, thereby for this system being worn over head and it being disposed better.Part 823 and part 822 can comprise optical material or free space.For the another eye provides equivalent system.
As shown in Figure 28, display 830 and back side light 840 can be moved near lens subassembly 820.In this case, move this display and back side light towards nose rather than towards the mirror leg.Figure 28 illustrates and interconnection 800,801 can be stacked on the photoconductive tube, as previously mentioned.In this case, this interconnection also can comprise the power supply that is used for back side light 840, and this power supply can be integrated in the interconnection 800, perhaps can be independent lamination.In this embodiment, can adopt aforementioned all considerations,, perhaps provide the virtual image at the correct distance place in order to increase facial curvature.
Figure 29 illustrates this optical design.Comprise for display 830 and the situation of transparent LCD to provide thin back side light 840.If display 830 is self-emissions, do not need back side light so.Situation described in this optical design consideration and Figure 25 is similar, except placing this LCD towards nose rather than mirror leg, and makes catoptron 859 counter-rotatings.Also to note, also can conduit 821 be placed between back side light 840 and the nose frame as shown in Figure 29, this provides maximum magnification, perhaps conduit 821 is placed between catoptron 859 and the display 830 as shown in Figure 30, this allows display and back side light are moved to the position that can not be seen by eyes, and therefore minimum dysopia is provided.In addition, by display and back side light are placed on can not descried nose near (Figure 30), this display and back side light can cover cover of upholstery.
In described all embodiment, demonstrate at light guide elements and other local optical materials that uses.The present invention can also utilize the air of catheter interior or other gas to realize, as long as the user can observe by the straight flange of conduit.In some cases, realize minimum weight and cost by removing optical material.For example, can make the display system among Figure 28 the lightest by utilizing hollow light pipe 810.
Figure 31 illustrates complete binocular viewing system, it can be used for comprising many application of amusement (observing recreation, TV, DVD, MP4 etc.), be used for as observe stereo microscope image, computer picture, from the commercial Application of the stereo-picture of CAD or other system etc., be used for as medical applications from the endoscopic observation image, and many other application.Using transparent conduit 910 to allow the user to have is familiar with the height of surrounding environment.Notice that Figure 31 also illustrates and meets facial facial curvature 929.The curve of introducing can be considered the eye rotation of user's nature, and is known as eyewear art, thereby makes this curvature can introduce the aberration of minimum number in user's eyesight.Conduit 910 can be hollow with weight reduction.
In the embodiment of Figure 31, adopt conduit 921 that display is moved away from eyes and towards nose, cover 951 is used to cover display and back side light.Cover 951 can cover around all outer surfaces of nose frame 950, prevents that room light from entering display system at nose frame place, and prevents to penetrate from system from the parasitic light of back side light, and as seen it is become.
The optical system that adopts in Figure 31 is (Figure 30) as previously described.In addition, Figure 31 illustrates and uses hinge 275 to make the mirror leg folding.This makes circuit fold and realize at vertical plane by covering flexible interconnect (previously described, still herein for clear and not shown).Mirror leg 285 can be hollow, and can hold the Circuits System 295 that is used to handle the Voice ﹠ Video signal that cable 990 provides.Interchangeablely be, these circuit can be to carry out RF or other radio communications with signal source, and circuit 295 can comprise to equipment provides electric power required electric battery.For audio frequency provides transducer 290.This transducer 290 can be simple loudspeaker, perhaps also can have other improvement of noise removing or employing microphone.The microphone that is used for voice recognition commands or communication can be attached to this design, as we described in the first to file.
Figure 32 and 33 illustrates the system that is used to observe image.Binocular viewing system 990 is communicated by letter with image data source 994 with interface controller 992 by cable 991,993.Image source 994 for example can comprise TV, digital video disc (DVD) player, MPEG4 player, video camera, digital camera, video tape player or other source video images.Image source 994 produces vision signals, and it can provide the vision signal of canonical form, as composite video (NTSC or PAL), TV signal component or other normalized forms by out connector.Interchangeable is that image source 994 can provide the output signal of any other form.Image source 994 also can comprise personal computer, personal digital assistant, cellular phone, and other portable electric appts of computing machine or other images perhaps can be provided.Cable 993 is sent to controller 992 with picture signal, and it can be provided for adjusting the otherwise control of brightness, contrast or image to the user.This controller can also be for providing the space in conjunction with electric battery.The all right combined circuit of interface controller, in order to the change picture signal, thereby according to this information of form reformatting that is suitable for most driving LCD.The signal of this change can be supplied with this binocular viewing system by circuit 991.Cable 991 also can provide serial data line, in order to steering order is sent to the circuit 295 (referring to Figure 31) that is installed in the mirror leg.Circuit 991,993 can have connector.
In interchangeable embodiment, this interface circuit can be placed on (285 among Figure 31) in the image source 994 or in the mirror leg fully.Can use the combination in any of the position between image source, interface controller or the mirror leg, in all reorientating some embodiment of all Circuits System and electric battery, not need interface controller 992.
Thereby also can remove them, described in U.S. Pat 6091546 by replacing cable 991,993 with RF that passes the signal to binocular vision device 990 or IR method.
Should be appreciated that, can in the monocular instrumnent system, adopt more of the present invention aspect, wherein only provide display assembly for eyes.The invention is not restricted to the technical scheme that illustrates especially and describe, but as the record in the claims of enclosing.
Claims (26)
1. binocular viewing system comprises:
Light guide elements, its curvature adapts to the curvature of user's face, and the center section of light guide elements forms nose frame element;
Right eye display assembly and left eye display assembly, each display assembly all comprises:
Electronic display elements is used to provide image, and it is arranged as the end of transmittance to this light guide elements;
Part light guide elements, it is arranged as the light of reception from this electronic display elements, and
Eyepiece component comprises eyepiece and at least one reflecting surface, and this reflecting surface is arranged in this light guide elements, in order to the eyes transmission of the light in this part light guide elements towards the user.
2. binocular viewing system as claimed in claim 1 is characterized in that, this light guide elements is solid and transparent.
3. binocular viewing system as claimed in claim 1 is characterized in that this light guide elements is hollow.
4. binocular viewing system as claimed in claim 1, it is characterized in that, each display assembly further comprises wedge, it places on the light path from this reflecting surface to this eyepiece and this eyepiece and this light guide elements, this wedge is configured to provide the axial optical system from this electronic display elements to this eyepiece.
5. binocular viewing system as claimed in claim 1 is characterized in that, the eyepiece of each display assembly all is positioned at mirror leg one end of this light guide elements.
6. binocular viewing system as claimed in claim 1 is characterized in that, the distance that this electronic display elements and this eyepiece separate is approximately equal to the focal length of this eyepiece.
7. binocular viewing system as claimed in claim 1, it is characterized in that, each display assembly further comprises wedge, this wedge is positioned on the outside surface of the light guide elements on the light path from the reflecting surface to eyes, and this wedge is configured to be provided at the axial optical system between electronic display elements and the eyes.
8. binocular viewing system as claimed in claim 7 is characterized in that the wedge of each display assembly integrally connects, thereby extends across the part of this light guide elements.
9. binocular viewing system as claimed in claim 1 is characterized in that, each eyepiece component comprises a plurality of reflectings surface that place this light guide elements, thereby with the eyes transmission of the light in this part light guide elements towards the user, provides wide visual field thus.
10. binocular viewing system as claimed in claim 1 is characterized in that, this light guide elements, right eye display assembly and left eye display assembly are connected on the mirror pin components, and this mirror pin components is configured to the head rest supporting by the user.
11. a binocular viewing system comprises:
Light guide elements, the center section of this light guide elements form nose frame element; And
Right eye display assembly and left eye display assembly, each display assembly comprises:
Electronic display elements, be used to provide image, this electronic display elements places the part of light guide elements, and Circuits System that links to each other with this electronic display elements or wiring are passed through along the upper surface or the lower surface of this light guide elements, perhaps in the cavity of this light guide elements, pass through, and
Eyepiece component comprises eyepiece and at least one surface of partial reflection at least, and this reflecting surface places this light guide elements, in order to the eyes transmission of light from this electronic display elements towards the user.
12. binocular viewing system as claimed in claim 11 is characterized in that, this comprises catoptron in surface of partial reflection at least.
13. binocular viewing system as claimed in claim 11, it is characterized in that, this comprises polarising beam splitter in surface of partial reflection at least, it is arranged as from light source and along this light guide elements illumination is delivered to this electronic display elements, this electronic display elements reflects, so that make light turn back to this surface, this surface is used to reflect light to eyepiece.
14. binocular viewing system as claimed in claim 11 is characterized in that, further comprises the light source that is used for electronic display elements, it is arranged as from an end of this light guide elements illumination is provided.
15. binocular viewing system as claimed in claim 14 is characterized in that, further comprises collimation lens, it is arranged in the light guide elements or on its end face, in order to the light of collimation from the light source to the electronic display elements.
16. binocular viewing system as claimed in claim 11 is characterized in that, further comprises the light source that is used for electronic display elements, its contiguous this electronic display elements is arranged.
17. binocular viewing system as claimed in claim 11 is characterized in that, this eyepiece makes the aberration minimum.
18. binocular viewing system as claimed in claim 11 is characterized in that, this light guide elements is formed by polymethylmethacrylate, polycarbonate resin, epoxy resin, urethane, cyclenes or glass.
19. binocular viewing system as claimed in claim 11 is characterized in that, light guide elements, right eye display assembly and left eye display assembly are connected on the mirror pin components, this mirror pin components is configured to the head rest supporting by the user.
20. binocular viewing system as claimed in claim 11 is characterized in that, the electronic display elements of each display assembly all with the nose frame arrangements of elements of light guide elements together.
21. binocular viewing system as claimed in claim 20 is characterized in that, further comprises the light source that is used for electronic display elements, it places the nose frame element of light guide elements.
22., it is characterized in that this electronic display elements and view data sources traffic as claim 1 or 11 described binocular viewing systems.
23. binocular viewing system as claimed in claim 22, it is characterized in that this image data source comprises TV, device for reproducing digital video disc, MPEG4 player, video camera, digital camera, video tape player, personal computer, personal digital assistant or cellular phone.
24., it is characterized in that as claim 1 or 11 described binocular viewing systems, further comprise mirror holder and eyeglass, it is installed on the nose frame element between right eye and left eye display assembly and the eyes of user.
25. binocular viewing system as claimed in claim 24 is characterized in that, eyeglass comprises the correcting lens that is used to correct user's eyesight.
26. binocular viewing system as claimed in claim 24 is characterized in that, this mirror holder comprises knock-down eyeglass holding element, and it is configured to removably to keep eyeglass wherein.
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| US46544103P | 2003-04-25 | 2003-04-25 | |
| US60/465,441 | 2003-04-25 | ||
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| CNB2004800177769A Division CN100416340C (en) | 2003-04-25 | 2004-04-23 | Binocular viewing system |
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| CNB2004800177769A Expired - Fee Related CN100416340C (en) | 2003-04-25 | 2004-04-23 | Binocular viewing system |
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| Publication number | Publication date |
|---|---|
| CN1813213A (en) | 2006-08-02 |
| CN100416340C (en) | 2008-09-03 |
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