CN1452725A - Optical beam-splitter unit and binocular display device contg. such unit - Google Patents

Abstract

The invention relates to an optical beam-splitter unit which contains crossed transparent planoparallel plates (6, 7), starting at a common intersection line (4) with light reflecting surfaces that diverge towards the light beam to be split. The binocular picture display device that is also subject of the invention contains an optical beam-splitter unit and it has first focusing elements (24) and mirrors in front of the eyes (25). This device is characterised by that its beam-splitter unit is the above described one, the first focusing elements (24) are placed at two opposite sides as seen from the direction of the beam arriving to the semitransparent reflective surfaces of the optical beam-splitter unit (22) i.e. from the receiving direction (5) and the common optical axis (23) of the first focusing elements (24) is at right angles to the receiving direction; outside the first focusing elements (24) on both sides a mirror is placed in front of each eye, and the semitransparent reflective surfaces of these mirrors enclose an angle delta 45 DEG +-15 DEG with the above mentioned optical axis (23), and the intersection line of these reflective surfaces is parallel to the mirror crossing intersection line (4) of the semitransparent reflective surfaces.

Description

Optical beam-splitter unit and the binocular display device that comprises this unit

Technical field

The present invention relates to a kind of optical beam-splitter unit and the display device that comprises this beam-splitter unit.

Background technology

Utilize catoptron, prism and translucent catoptron beam split or close light and be known for a long time.For example, U.S. Patent No. 4,924, the theme of 853 people such as () William Jones is the device of two light paths of a kind of merging, this device comprise in succession two prisms and the reflecting surface of two prisms will guide identical light path into from the light beam of different directions, hungarian patent No., 186 558 also show the device of two light paths of a kind of merging, and wherein catoptron in succession will be guided identical light path into from the light beam of different directions with translucent catoptron.Because these ways need two optical units to merge light path, therefore need bigger space.

The PCT patent No.WO 85/04961 that announces shows a kind of solution, has wherein adopted the X-shaped cube prism to separate light path, and guides two different light paths from the light beam of a direction into by the reflecting surface that intersects.The quality of this device is relatively large, and this is disadvantageous under certain situation, and for example display device is contained in when last.

It is reported, need to enlarge for the beholder visual angle of target source in many fields of life, and have the technical measures of many dissimilar these purposes of realization, from simple small-sized magnifier, microscope and laparoscope are to telescope.In the monocular device, the amplification at target source visual angle only can be seen by an eye.Yet only by a nature soon, therefore long-time back even can make us irritated has and can watch the device of target source to be absolutely necessary with eyes, thus, needs binocular device, and multi-form binocular device is known and uses.

The common trait of known binocular device is that these devices comprise that all beam-splitter unit, beam-splitter unit will be divided into two bundles from the light beam that begins such as the target source that is installed in the graphoscope on the head and guide left eye and right eye into.Light-dividing device is the reflecting surface of catoptron or prism, and reflecting surface can be total reflection or translucent.

Beam split can realize basically in two ways.Under first kind of situation, for example, because the first of two light paths at the bottom of from target source to left eye and at the bottom of from target source to right eye transmits towards two opaque reflectings surface of placing in succession with V-arrangement, this reflecting surface is with different direction folded light beams, therefore from target source to left eye at the bottom of and from target source to right eye at the bottom of the first of two light paths form angle.In second under the situation, first's unanimity of light path, the beam-splitter unit that has translucent surface then make a part of light beam by and with remaining along different direction reflections.

Japanese patent specification No.06110013 (people such as Lu Qi); Japanese patent specification No.07287185 (people such as clear will); And US Patent specification No.5, the theme of 682,173 people such as () Huolou Koffskys is the device of the above-mentioned first kind of situation of representative.In these devices, be used to separate light path with the catoptron of V-arrangement arrangement.The common drawback of these methods is the opposites that are not placed on display screen because of two catoptrons, but one of them slightly left and another slightly to the right, therefore trapezoidal distortion takes place, if and display screen is too near the overlapping edges of V-arrangement catoptron, then from a fixed point light beam of display screen even can not arrive two catoptrons.Owing to this reason, should keep sizable distance between display screen and the V-arrangement catoptron, according to this distance of practical experience should be the twice of display screen diagonal, thus, caused the increase of apparatus structure size on the one hand, display screen and the distance between the lens of V-arrangement catoptron back will strengthen on the other hand, because watch the virtual image far away for comfortable, display screen must equal its focal length apart from the distance of lens, so reduced feasible amplification, and had less than the lens amplification degree of big focal length to image.

Under the situation of binocular device, for symmetry, miniscope must be placed between two, if and the distance between micro-display and the V-arrangement catoptron is bigger, device will be as the beak projection, be worn at device under the situation of head, from aesthetic viewpoint and because bigger pressure is applied on the bridge of the nose, so be inappropriate.U.S. Patent No. 5,682,173 have solved this problem by placing two catoptrons in the light path between display screen and V-arrangement catoptron again, and light path is reflected twice with 90 ° thus.Under the situation of patent specification No.07287185,, placed an independent catoptron in the light path between display screen and V-arrangement catoptron for identical purpose.

Above-mentioned patented claim No.WO 85/04961 (Mo Si) has studied second kind of situation of above-mentioned optics beam split, first's unanimity of promptly working as light path, the beam-splitter unit that has translucent surface then make a part of light beam by and with remaining situation along different direction reflex times, well-known optical element has been adopted in this patented claim, it is the X-shaped cube prism, its inside surface is translucent reflecting surface, so that separate the light beam from target source.In this device, can reduce to zero on the distance principle between display screen and the X-shaped cube prism.Yet the X-shaped cube prism is a solid, so it is very heavy, makes four right-angle prisms and it is sticked together to form X-shaped cube prism be expensive, and is complicated and effort.

Summary of the invention

The purpose of this invention is to provide a kind of optical beam-splitter unit, this unit overcome other present known designs be used to solve same problem the unit shortcoming and have minimum possible quality, in fact it can place near the distance of target source by expectation, and can be along any point in both direction reflectance target source; Distribute identical by means of the image light intensity that this device reflected with the light intensity of target source.Further aim of the present invention provides binocular object multiplying arrangement, this device is made by utilizing above-mentioned optical beam-splitter unit, it has overcome the shortcoming of other existing device of describing in detail previously, and its quality and size are enough little, so that can be cosily as the binocular screen display that is contained in head.

Beam-splitter unit according to the present invention is based on following cognition, promptly because each other two unlimited thin semitransparent mirrors that intersect with X-shaped can ideally partly separate on both direction by reflection by transmission and part and guiding is parallel with its bisector plane and with the light beam of vertical arrivals of its intersection, can solve above-named four tasks in theory simultaneously so infinitely approach semitransparent mirrors with crossing two of X-shaped each other.Yet, in fact do not have unlimited thin flat board, and thin excessively glass plate can break, thin excessively plastic plate can be crooked, and if plate make thickly more, the intersecting area of catoptron will produce bigger shadow band.This intersecting area is being equivalent to opaque body and a shade is being incident upon on the image on the optical significance, and means that reflection weakens more.This shadow band extremely makes one nervous to the people who watches image and as a rule, is unallowed under the situation of video image or computer screen especially.Yet we notice, if we construct a kind of optical beam-splitter unit of being made by the planopaallel plate that is perpendicular to one another, two flat boards contact with each other along an edge, and the end face that they begin from this edge is an optical surface, and they to begin from this limit towards the side of separated beam direction be translucent reflecting surface, in addition, if these planopaallel plates are by this way around one or two transparent body, the end face that is them drops on it, or on the continuity face on their plane, this plane or translucent reflecting surface, perhaps they comprise translucent reflecting surface and complete reflecting surface, then above-mentioned shadow region can be eliminated fully, and can make and satisfy the optical beam-splitter unit that all four purposes require.

According to beam-splitter unit of the present invention further based on cognition, promptly for certain application of the suitable fixed mount of the security of the satisfaction that utilize to guarantee to prevent to break, beam-splitter unit can be by the planopaallel plate manufacturing with minimum thickness, it is fitted together becomes a unit that is projected as X-shaped, this mode make above-mentioned shadow region can ignore or almost be inapparent and by this way it can influence sharply the inherent function of given unit, and simultaneously suitably opposing break or be crooked.

Binocular display unit according to the present invention if promptly satisfy following condition, can be constructed the binocular display device based on cognition, makes it have minimum size and quality:

The light beam that begins at the display screen of micro-display separates by having with two reflectings surface of display screen corresponding size, and reflecting surface intersects each other with X-shaped, because these reflectings surface are guided light beam into left side and right side with identical volume;

Optical beam-splitter unit with minimum mass is according to present patent application, because the optical parallel surface plate has two continuous reflectings surface;

Can realize micro-display display screen maximum amplification and realize the compactest layout simultaneously by being placed in the light path near the focusing element of the relative both sides of optical beam-splitter unit;

If the shape of focusing element is corresponding to prism or comes from the parallelepipedon of xsect of pyramid light path of the display screen of parallelepiped-shaped, and the shape of the catoptron of eyes front is the trapezium corresponding to the xsect of the inclination of pyramid light path, focusing size of component minimum;

Catoptron with eyes front of minimum dimension should be placed on the front of pupil just, otherwise can not see complete image therein; Its horizontally disposed direction should be the optical axial of focusing element;

When little display unit only, X-shaped mirror optical beam-splitter unit and focusing element center on shell, when the catoptron of eyes front is connected on this shell with support, and the external dimensions minimum of this device.

This device size can further reduce by folding connected catoptron when not in use;

Can be so little with this device of above-mentioned measure miniaturization, so that it can be placed in the shell of mobile phone across; Its weight can be so little, so that do not need to be used for it is installed in the carrying device (for example, the helmet, scarf, or eyes frame or nose clip) of head, but it can be fixed on the bridge of the nose by enough clips.

Most preferred mode was not to be worn over it on retainer plate of similar necklace as medallion when this device on being clipped in the bridge of the nose did not use, this device always " on hand " in this case, we will always carry it to be similar to wrist-watch, and if necessary it can have at the volley.

By retainer plate being formed cable and it being equipped last two earphones that are fixed on the relative position, can make a kind of device that image and sound are provided in the simplest mode, the mechanical support element of earphone is a circuit stube cable self in this case;

From weight, the angle of volume distributed median and aesthetic feeling sees, when will this device in control module being worn over nape, optimal way is to place other electronic unit of this device necessity of operation far away as far as possible from display unit;

For with external voice, data and vision signal are (for example, by mobile phone, portable computer, game console, DVD player, the label television transmitter produces) wireless connections, optimal way is with the micro-display driving circuit, the radio frequency transceiver loop, label television reception loop, any one in microprocessor and the power supply is arranged in display unit or the control module.

It also is practical microphone being arranged in the shell of display unit, because this device can be as the terminal of infotech device or as infotech device independently thus; We can obtain personal communicator by this way according to cognition, and this communicator can have on and can arrive in the following manner the sense organ on the head continuously:

A./one of earphone is put in the ear, and facing to the speech of the microphone on the neck (function of cellular phone);

B./two earphones are put into all (sound of being heard has better tonequality in the ear; Stereosonic possibility), the microphone speech before mouth facing to microphone on the neck or act;

C./this display device is clipped in (virtual monitor function) on the bridge of the nose;

D./and this display device is clipped on the bridge of the nose, one or two earphone is put into (the video eyeglasses function has monophone, more or stereo) in the ear.

We notice that as described in the mask body of back, this display device also can be added microcamera, and this will further expand its function.

According to the cognition of describing in detail above, we have solved purpose of the present invention with optical beam-splitter unit, this optical beam-splitter unit is included in that common intersection begins has transparent planopaallel plate towards the light reflection surface of the direction bifurcated of separated light beam, and the feature of optical beam-splitter unit is

Begin and the end face of and the planopaallel plate that be perpendicular to one another adjacent equally, have plane and optical flat perpendicular to the side relevant and these end faces with it with the side of the planopaallel plate that comprises light reflection surface at common intersection;

At least one makes the also this body of the described planopaallel plate of adjacency by transparent material, it comprises semitransparent reflecting surface, or by semitransparent reflector part with the surface formed, reflecting part and its are surperficial fully begins to make it to continue prolongation in the plane of above-mentioned end face and from these end faces.

A kind of advantageously the realization according to the feature of the mode of optical beam-splitter unit of the present invention is:

This device also has the second and the 3rd planopaallel plate, and the second and the 3rd planopaallel plate is positioned at and has on the elongated surfaces of first and second planopaallel plates of the optical reflection face of the direction bifurcated of separated light beam and as the transparent body second and the 3rd planopaallel plate and the first and second planopaallel plate adjacency.

All planopaallel plates are all made by the same material with equal thickness and refractive index and they are flat parallelepiped-shaped, and they interconnect along limit parallel to each other and they form the unit of X-shaped in perpendicular to the cross section of fillet.

Practical mode is

A) part below this beam-splitter unit is translucent reflecting surface:

Towards the side of first planopaallel plate of the second adjacent planopaallel plate with advantageously have the part of its opposite flank of following width; $s=\frac{.}{\sqrt{2n^2-1}}$

This width begins from its limit that is connected with Siping City's parallel planes plate to measure, and the thickness of planopaallel plate is v in the formula, and the refractive index of material is n;

Towards the side of second planopaallel plate of first planopaallel plate with advantageously have the part of its opposite flank of the width s that begins to measure from the adjacent limit of itself and the 3rd planopaallel plate according to above-mentioned formula,

Towards the side of the 3rd planopaallel plate of the second adjacent planopaallel plate, remove the part that it advantageously has the width s that begins to measure from the adjacent limit of itself and second planopaallel plate according to above-mentioned formula,

Towards the side of Siping City's parallel planes plate of the first adjacent planopaallel plate, remove its part that advantageously has the width s that begins to measure from the adjacent limit of itself and first planopaallel plate according to above-mentioned formula and

B) part given below reflects fully

Part towards the side of the 3rd planopaallel plate of the second adjacent planopaallel plate advantageously has the width s that begins to measure from the adjacent limit of itself and second planopaallel plate according to above-mentioned formula,

Part towards the side of Siping City's parallel planes plate of the first adjacent planopaallel plate advantageously has the width s that begins to measure from the adjacent limit of itself and second planopaallel plate according to above-mentioned formula.

C) part given below is that optics is flat:

Towards first end face of first planopaallel plate of the 3rd planopaallel plate, and

Second end face towards second planopaallel plate of Siping City's parallel planes plate.

Here we notice, all sides of in addition all planopaallel plates are inevitable also to be optical surface.Optical surface is interpreted as such plane, and its plane roughness is less than σ=10 .Translucent surface is interpreted as partly transmitting and partly reflects the surface of natural light or polarized light.

The structure of the optical beam-splitter unit that limits above comprises first, second, third and fourth planopaallel plate, its thickness is that v and refractive index are n, so arrange with X-shaped, promptly each is all adjacent with same plane two of the first and the 3rd planopaallel plate sides, and similarly, second and each is all adjacent with same plane two sides of Siping City's parallel planes plate, towards first end face of first planopaallel plate of the 3rd planopaallel plate with towards the side of second and Siping City's parallel planes plate of first planopaallel plate at grade, and it is an optical surface, towards second end face of second planopaallel plate of Siping City's parallel planes plate with towards the side of the 3rd planopaallel plate of second planopaallel plate at grade, and it is an optical surface.Side towards first planopaallel plate of second planopaallel plate, towards the side of second planopaallel plate of first planopaallel plate, all be semitransparent reflecting surface towards the side of the 3rd planopaallel plate of second planopaallel plate with towards the side of Siping City of first planopaallel plate parallel planes plate.First end face makes the semitransparent reflecting surface of second planopaallel plate and Siping City's parallel planes plate become continuous reflecting surface, similarly, second end face makes the semitransparent reflecting surface of first planopaallel plate and the 3rd planopaallel plate become continuous reflecting surface, because they are optical surfaces, so they penetrate light beam thereon under the limiting angle of internal reflection fully.

Fall into first planopaallel plate and second planopaallel plate semitransparent reflecting surface bisector plane and be called receive direction perpendicular to the intersection of above-mentioned semitransparent reflecting surface and the direction of pointing to this intersection, because the light beam that above-mentioned X-shaped mirror optics beam-splitter unit will come from this direction ideally separates, and the rectangular region that has perpendicular to the plane of receive direction between the limit of the external parallel of the semitransparent reflecting surface of first planopaallel plate and second planopaallel plate is called receiver side, because target source can be placed on herein or be farther from herein.

Because the light beam of propagating to the outside in the place that catoptron intersects each other runs into twice translucent reflecting surface (light beam is reflected and a light beam passes reflecting surface from reflecting surface), be that light beam loses some of its light intensity for twice, therefore need guarantee to lose identical light intensity with regard to the light beam that passes the place that catoptron intersects each other, otherwise the formed image of light beam by only being filtered once that is throwed will be brighter.In fact it occurs as the bright line of bothering that passes the image middle part.According to cognition, this problem is used according to above-mentioned solution of the present invention and can be solved capitally.

Theme of the present invention also comprises having from common intersection and begins to have towards the optical beam-splitter unit of the transparent planopaallel plate of the light reflection surface of separated beam bifurcation, its essence is that it has four planopaallel plates, each is than 0,4mm is thin, they form the X-shaped unit in the xsect vertical with intersection, wherein adjacent planopaallel plate forms 90 ° ± 20 ° angle and planopaallel plate or traditional translucent catoptron each other, or transmits fully along the composition of the light of a direction polarization and partly transmission and partly reflecting along the polarizer of the composition of the light of another direction polarization.Because what intersect is regional extremely thin, its shade shows fuzzyly thus, thereby, do not make us bothering, at the situation shade of the planopaallel plate that fully approaches even can not be seen.

Another optical beam-splitter unit has from common intersection and begins to have transparent planopaallel plate towards the light reflection surface of separated beam bifurcation, the feature of this unit is that it has three planopaallel plates, each is than 0,4mm is thin, they form the X-shaped unit in the xsect vertical with intersection, wherein abut the middle part on the 3rd planopaallel plate surface than the end face of two short planopaallel plates, so that they form elongated surfaces each other on each side of the 3rd planopaallel plate, and in unit (22), be 90 ° ± 20 ° and reflector plate or traditional translucent catoptron individually, or transmitting fully along the composition of the light of a direction polarization and partly transmission and partly reflecting along the polarizer of the composition of the light of another direction polarization at long Boping parallel planes plate and short Boping parallel planes plate angle each other.

Further theme of the present invention is the binocular image display device, this device has optical beam-splitter unit, in addition, the catoptron that comprises focusing element and eyes front, and the feature of this device is that its beam-splitter unit is according to X-shaped mirror optics beam-splitter unit of the present invention and it is characterized in that when when the direction of the light beam of the semitransparent reflecting surface that arrives optical beam-splitter unit is seen, promptly from receive direction, two focusing elements are arranged on the common optical axis of the relative both sides of optical beam-splitter unit and these focusing unit perpendicular to receive direction, and in both sides, the catoptron of eyes front is positioned at the outside of these focusing elements, and the reflecting surface of these catoptrons and above-mentioned optical axis be at 45 ± 15 ° angle δ, and the intersection on the reflecting surface plane of these catoptrons is parallel to the intersection of the crossed reflex mirror intersection of optical beam-splitter unit semitransparent reflecting surface.

Optimal way is, optical beam-splitter unit, and the catoptron of focusing element and eyes front is arranged in the cover, and this cover comprises anteorbital catoptron front and at the light inlet of optical beam-splitter unit receiver side.In addition, favourable mode is, optical beam-splitter unit and focusing element are installed in the housing, light inlet and this housing that this housing has the element that is used to focus are covered by cover plate, and the catoptron of eyes front is connected on first slide plate and second slide plate, the slide plate handle that stretches into housing is a tooth bar parallel to each other, and has in the middle of two tooth bars and two tooth bars are connected and can move their gear in opposite direction.

According to further embodiment, this device comprises target source, and for example, described target source can be the display screen of little display unit.In this case, optimal way is, the plane parallel of the display screen of little display unit is in by the intersection of crossed reflex mirror with by plane that optical axis limited, and be placed on the receiver side of optical beam-splitter unit, another optimal way is, this device comprises the light source such as light emitting diode of the display screen that at least one illuminates described little display unit, and this light source is placed between the intersection point and crust of the device of planopaallel plate of optical beam-splitter unit.Another practical mode is, this device comprises and illuminates little display unit light source everywhere from behind, and this light source is placed between described little display unit and the crust of the device.According to further embodiment, on the both sides of described optical beam-splitter unit, in this light path, has liquid crystal shutter perpendicular to the optical axis of focusing element.

Optimal way is that described device comprises two two clamping plate that are made into integration with crust of the device.

The feature of another this image display device embodiment is, has the hook-type rail that is made into integration with crust of the device on the side of described crust of the device near user's head, and their bus is parallel to each other; Optimal way is that described device comprises the folder formula connector that is fixed between the described hook-type rail, in fact described folder formula connector comprises the twisted plate with the curved surface of described crust of the device center dant, two clamping plate and wing plate, the spacing width of described wing plate equals the distance between the described hook-type rail.

According to further embodiment, this device comprises bracing frame, bracing frame is made up of following elements: the side arm of two Metal Eyeglasses, and connect them and be attached to nose-bridge frame on them with articulated structure, be connected to bridge of the nose sway brace and device fixed cell on the nose-bridge frame; Favourable mode is, nose-bridge frame is a narrow boards, planes overlapping on its upper surface and the side arm that is positioned at glasses or parallel, and its maximum ga(u)ge is 1.7mm, and another kind of optimal way is that above-mentioned bridge of the nose support comprises two sensings down, parallel to each other and be set at bridge of the nose sway brace with the position of the center same distance of nose-bridge frame, and two bridge of the nose supporting pads that are connected on the bridge of the nose sway brace end, and the device fixed cell by two sensings down, in bottom closure, parallel to each other and be set at the U-shaped fixed transverse rod of the position of the center same distance of nose-bridge frame and form.

The feature of another this image display device embodiment is that described device comprises that at least a micro-display drives the loop, and/or radio frequency receivers-transmitter loop, and/or power supply and/or microprocessor.

According to further preferred embodiment, the ccd image record chip that on an end of described crust of the device, has sensitization in infra-red range, and front lens so is provided with on its other end, and promptly the searching surface of the 3rd optical axis of front lens and described ccd image record chip meets at right angles.On the eyepiece of right eye front, in the infra-red range internal reflection, transparent reflecting element is placed in the light path between right eye and the searching surface in visible wavelength range.Advantageously mode is, has the infraluminescence diode on described front lens, and its light is directed into described reflecting element.

Another practical mode is, on the top of described crust of the device, in described crust of the device, be formed on the described recess of nose, be provided with ccd image record chip with searching surface, the plane parallel at searching surface place with by the focusing optical axis of element and the plane that intersection limited of crossed reflex mirror, and in the front of ccd image record chip, described little display unit is provided with second front lens with optical axis vertical with described searching surface.

In the following embodiments, we adopt reflective micro-display, and this display need be perpendicular to the display screen flat illumination.Optimal way is in the case, forms X-shaped mirror optical beam-splitter unit by as thin as a wafer (0.1-0.2mm is thick) planopaallel plate, and is the display screen illumination by these planopaallel plates.For even illumination we in the space between display screen two plane-parallel mirrors far away (or in the situation of the beam-splitter unit that forms by three planopaallel plates, between planopaallel plate far away and half planopaallel plate) place reflecting element or the element of focusing, it is with the light of light source, optimal way is the three primary colors light emitting diode light, projects display screen.In order to make light for the light source of display screen illumination, or by the X-shaped mirror directly the light of reflection do not shine in the eyes, we put into along the polarization plates of a direction polarization between light source and optical beam-splitter unit, and we put in the both sides of optical beam-splitter unit along the polarization plates of another direction (perpendicular to previous direction) in light path, only from display screen reflection, the light beam that its polarity has changed is by two polarization plates of back thus.

If the optical reflection face of X-shaped mirror optical beam-splitter unit is the optical layers that partly reflects and partly transmit polarized light, in this case, cause that the optical surface or the element of loss of light intensity reduce largely, and compare with front embodiment thus, the light intensity that arrives eyes increases several times, or we just can obtain same light intensity with the light source of the very low capacity of consume little power.

In a further embodiment, the two ends of flexible retainer plate are fixed on the opposite end of controller, controller comprises the eyepiece of the display unit with micro-display, optical beam-splitter unit, the focusing element, eyepiece, display casing and bridge of the nose folder, cable is arranged in retainer plate, and have through branch and be connected on the retainer plate and be connected electrically in earphone on the retainer plate by mechanical system.The length of described retainer plate is longer than the diameter of user head at the place, plane of nose.Has control module at retainer plate from display unit part farthest, described control module comprises the electronic unit that is used for the micro-display driving, power supply, microprocessor, radio frequency transceiver loop and label television reception loop, retainer plate branch's permanent fixation wherein, another branch is so fixing, promptly can separate.

Description of drawings

Describe the present invention in detail below in conjunction with accompanying drawing, figure helps to understand its function, and comprising the advantageous embodiments of the preferred embodiment and the binocular image display device of optical beam-splitter unit, wherein accompanying drawing is as follows:

Fig. 1 is three left reflected light paths with the crossing half-mirror of X-shaped;

Fig. 2 is the right reflected light path of known crossing half-mirror;

Fig. 3 is the section sketch according to an embodiment of the possible embodiment of optical beam-splitter unit of the present invention;

Fig. 4 is a detailed cross sectional view of another embodiment of optical beam-splitter unit, there is shown left reflected light path;

Fig. 5 is a sketch of determining necessary angle in irradiating light beam district and distance condition;

Fig. 6 be with optical beam-splitter unit shown in Figure 4 similarly according to the skeleton view of the further embodiment of optical beam-splitter unit of the present invention, there is shown the geometric arrangement of planopaallel plate;

Fig. 7-8 shows the decomposition diagram of the further embodiment of optical beam-splitter unit possibility embodiment;

Fig. 9 a is the skeleton view according to the optical beam-splitter unit of being made up of four Boping parallel planes plates that formed by the half-mirror thinner than 0.4mm of the present invention;

Fig. 9 b is and the identical optical beam-splitter unit of optical beam-splitter unit shown in Fig. 9 a, but is made up of three s;

Fig. 9 c is the sectional view perpendicular to the planopaallel plate surface according to the middle part of the amplification of optical beam-splitter unit shown in Fig. 9 b;

Figure 10 is the layout sketch of an embodiment of binocular display device;

Figure 11 is the skeleton view of device shown in Figure 10;

Figure 12 is the diagrammatic top view according to another embodiment of binocular device of the present invention, and the device among the figure does not have shell;

Figure 13 is the skeleton view of watching from receive direction according to device shown in Figure 12, and wherein this device has the catoptron of fixing eyes front and in the shell of compactness;

Figure 14 is the decomposition diagram of another embodiment of binocular display device, and wherein this device has the catoptron of adjustable eyes front;

Figure 15 is the vertical view of the travel mechanism of the slide plate that installs shown in Figure 14;

Figure 16 is the skeleton view that fits together at device shown in Figure 15;

Figure 17 is the layout schematic perspective view of another embodiment of binocular display device;

Figure 18 is the skeleton view of the folder formula connector that uses with device shown in Figure 17;

Figure 19 shows the embodiment of binocular display device, and wherein eyepiece is folding towards the focusing element, and display device is contained in the camcorder;

Figure 20 is the same with device among Figure 19, also is contained in the camcorder, and wherein eyepiece folds;

Figure 21 is that display device is contained in the mobile phone according to the skeleton view in another embodiment use of binocular display device of the present invention, and wherein eyepiece folds;

Figure 22 is the simple vertical view that comprises the binocular display device embodiment of reflective miniscope unit and LCD dimmer;

Figure 23 is the embodiment that is connected to the device on the support that resembles the eyes frame;

Figure 24 has miniature display driver loop, radio frequency receivers-transmitter loop, the front view of the embodiment of the optical beam splitting apparatus of power supply and microprocessor according to of the present invention;

Figure 25 is the skeleton view with this device embodiment of eyes mobile detection system;

Figure 26 is according to the skeleton view of looking with night-vision devices that helps of the invention process;

Figure 27 is the simple vertical view according to the individual embodiment of binocular device of the present invention, and this device comprises reflective miniscope and is the element of its illumination in front;

Figure 28 shows the side view of device shown in Figure 27;

Figure 29 shows the skeleton view of binocular display device, and this device can be worn over user's head and footpath portion as necklace when wearing this device.

Embodiment

As depicted in figs. 1 and 2, X-shaped mirror optical beam-splitter unit constitutes by having planopaallel plate transparent and translucent surface 1,2,3, as perpendicular to shown in the sectional view of crossed reflex mirror intersection 4.Only show the zone that these reflectings surface intersect among the figure.Have the injustice that in normal cutting process, produces, coarse thin surface 2a, the planopaallel plate 2,3 of 3a perpendicular to the broad side of planopaallel plate 1 and with the side adjacency of the broad of planopaallel plate 1.If so implement, then width as depicted in figs. 1 and 2 is the zone folded light beam not of t, shown in label 5 and arrow.For the purpose of clearer, Fig. 1 only shows light beam a-k to the left, and Fig. 2 shows light beam to the right.

As can be seen from Figure 1, when light beam a arrived the translucent reflecting surface of plate 1, light beam was returned by the intensity reflection with half partly with the right angle, and partly entered in the plate 1 with half intensity.The light beam that reflects with the right angle arrives the semitransparent reflecting surface of plate 2, and partly the direction with 1/4th intensity head for target source reflects, here not shown, light beam partly enters plate 2 with 1/4th intensity after reflecting, then after refraction again light beam with receive direction 5, promptly the receive direction shown in the arrow meets at right angles and leaves (considering illustrated situation) left.Light beam b, c has identical light path with d.

Light beam eAt first arrive the semitransparent reflecting surface of plate 2, and light beam partly with the right angle towards plate 1 and thus the direction in head for target source reflect, and light beam partly enters plate 2 after reflecting, and on the not gentle coarse surface of the end face 2a of plate 2, promptly is not to disperse on the surface of optical surface.Light beam f has identical beam path with g.As light beam h, i, when j and k arrive the semitransparent reflecting surface of plate 2, they with half intensity partly towards plate 1 and from here the head for target source reflect, and enter plate 2 with half intensity through deflecting light beams, then through reflecting the semitransparent reflecting surface that they leave the there and arrive plate 1 once more, here they partly reflect and leave with 1/4th intensity, and enter plate 1 through reflecting them once more with 1/4th intensity.As Fig. 1 clearly shown in, arrive light beam dWith hBetween the light beam of scope g, f, eDo not appear in the image display in left side, this meaning projection width in image is the shadow region of t.

Label among Fig. 2 and mark use according to they implications in Fig. 1.As above described at Fig. 1, light beam a- eWith i- lBe presented in the image display on right side, but arrive light beam eWith iBetween the light beam of scope f, gWith hNot gentle coarse at plate 3 end face 3a is not to disperse on the surface of optical surface, and thus in this case, same, width is tZone folded light beam not.

Fig. 3 shows the structure according to optical beam-splitter unit embodiment of the present invention, this device comprises first plane-parallel plate 6 and second plane-parallel plate 7, and this device also has the transparent body of also being made by transparent material 10, and according to this embodiment, the thickness of plate 6 and plate 7 differs from one another.Plate 6 and plate 7 are at their limit 9a, and the 9b place is connected to each other, and they are at limit 9a, and 9b begins and toward each other and make the side 6a of semitransparent reflecting surface, and 7a is each other in the angle of α=90 °.(figure 3 illustrates the fillet 9a and the perpendicular cross section of 9b of intersecting area with the parts that constitute optical beam-splitter unit.) end face 6b, 7b is at side 6a, 7a begin and with these lateral vertical, angle β promptly shown in Figure 3 is the right angle, end face 6b, 7b are optical surfaces, this means that they are ground to smooth fully and are polished down to transparent.Because described geometric condition, surperficial 7a, 6b are in same plane, and the surperficial 10a of the transparent body 10 is also at surperficial 7a, in the common plane and elongated surfaces of 6b, and surperficial 7a, the surperficial 10a of the 6b and the transparent body 10,10b are semitransparent reflecting surfaces.Here we notice, because if the transparent body is transparent, with end face 6b, the surface of the transparent body 10 of 7b adjacency cuts little ice, as we will clearly see in the back, so the transparent body 10 needn't be filled end face 6b, space between the 7b, this place also can be empty.

According to Fig. 3 when the light beam that arrives from the receive direction shown in the arrow 5 arrives the semitransparent reflecting surface of planopaallel plate 6, light beam partly enters the inside of plate 6 and is reflected on its end face 8 and leaves in its relative side then, partly reflect, and the reflecting surface of another planopaallel plate 7 of arrival, here, light beam partly reflects (not shown) and partly enters plate 7, leaves in its relative side through another secondary reflection.Light beam a is divided into light beam a' and a".Two light beams is perpendicular to receive direction 5, and leaves towards left eye and right eye along opposite direction.

Embodiment according to optical beam-splitter unit of the present invention shown in Figure 4 has equal thickness by four vTransparent planopaallel plate structure, promptly by first planopaallel plate, second planopaallel plate, the 3rd planopaallel plate and Siping City's parallel planes plate 11,12,13 and 14 structures.In order to emphasize at its limit 9a ', the semitransparent reflecting surface of plate 11 that 9b ' intersects each other and 12 side surface, by an expression they.Corresponding to the first above-mentioned planopaallel plate, plate 12 is corresponding to the second above-mentioned planopaallel plate according to the definition plate 11 of these elements, and plate 13 is corresponding to the 3rd above-mentioned planopaallel plate, and plate 14 is corresponding to above-mentioned Siping City's parallel planes plate.Angle α and β also are the right angles in this example, and thin end face 11b, and 12b is an optical flat.Optical beam-splitter unit shown in Fig. 4 is different from optical beam-splitter unit shown in Figure 3, be to replace the above-mentioned planopaallel plate of the transparent body 10 13 here, 14 along its limit 15c, and 15e is connected to the limit 15d of first planopaallel plate 11, or on the limit 15f of the 3rd planopaallel plate 13.Second planopaallel plate and the 3rd planopaallel plate 13,14 along its limit 15g, 15h is adjacent to each other, and its end face 13b, 14b is polishing not, and they can not be that optics is flat, but it falls into the side 13a with side 12a and end face 12b same level, 13b has semitransparent reflecting surface, in the drawings by an expression.Space 8 is empty, for example is full of air.Fig. 4 show planopaallel plate 11-14 intersecting area perpendicular to limit 15a, 15b, and the cross section on above-mentioned other limit.

Light beam promptly arrives unit according to Fig. 4, surperficial 11a, 12a head for target source from target source from the direction of arrow 5 equally.Below we will describe light path a- lThe semitransparent reflecting surface of the side 12a of light beam a-d slave plate 12 is reflected with 90 ° angle, and light beam continues surperficial 11a up to plate 11 with half intensity along its path.Intensity with 1/4th after light beam is refracted enters plate 11, and light beam is reflected the back once more to leave perpendicular to the direction of receive direction 5.

Light beam eOn the semitransparent reflecting surface 11a of the side of plate 11, be refracted the back and enter plate 11 with half intensity, and the inside surface that the optics of the end face 11b of light beam slave plate 11 is flat is not reflected with losing, and is being left at relative side 11a ' after the refraction once more.Refractive index in any value n(direction of light path is by being drawn in line for this departure direction a- lOn arrow be clearly shown that) and light beam a- dDeparture direction consistent just because by the side 11a of planopaallel plate 11, the folded angle γ of 11a ' and end face 11b equals 90 °, light beam eWith with its from the side 11a enter the identical angle of plate 11 and arrive side 11a '.Because this true light beam d, e, f, gWith hAlso participate in image and show, and the described hacures of bothering at the image middle part are eliminated because this result sees figures.1.and.2.

For make light intensity evenly we also must guarantee shown in Fig. 4 at light beam dWith hBetween scope (that is light beam, e, f, g) light beam that arrives also runs into semitransparent reflecting surface twice, and leave the relative side 11a of first plane-parallel plate thus with 1/4th intensity.This can provide described light beam by giving described side 11a ' d, e, f, gThe width s that leaves herein with semitransparent reflector coating; This zone 11a on the 11a of side " mark with point.At light beam hWith kBetween the light beam that arrives of scope i, jAnd light beam kSelf pass the semitransparent reflecting surface 11a of first plane-parallel plate 11, they are refracted, they enter first plane-parallel plate 11 with 1/2nd intensity, and they are at the semitransparent reflector district of side 11a ' 11a then " left with 1/4th intensity after the refraction once more.For the intensity that makes light beam can further not reduced any value by other semitransparent reflecting surface, towards the width of the side 14a of Siping City's face parallel-plate 14 of first plane-parallel plate 11 is that the part 11a ' (being emphasized by thick black line) of s is provided with complete reflectance coating, so that above-mentioned light beam i, jWith kFrom then on almost without any being reflected, they leave with 1/4th intensity reflecting surface 14a ' and their participate in image demonstration with losing.At last, from light beam aTo light beam l, all are at light beam kLight beam afterwards, even light beam lWhen they arrive the semitransparent reflecting surface of side 11a of first plane-parallel plate, they are refracted, intensity with half enters first plane-parallel plate, they leave with identical light intensity to be refracted the back then on the relative side 11a ' of first plane-parallel plate once more, and are reflected from the semitransparent reflecting surface of the side 14a of Siping City's face parallel-plate 14 that they show to leave and to participate in image with 1/4th intensity.

Because optical beam-splitter unit shown in Figure 4 is symmetrical, therefore the light path of the light beam (not shown) left of light beam that arrives from the receive direction that is marked by arrow 5 and the right-hand side towards Fig. 4, promptly the image at right-hand side shows, the image of side shows be similar to leftward as mirror image; 12a on side 12a and 13a " and 13a ' district correspondingly marked (part 12a " have semitransparent reflecting surface, and the surface of part 13a ' is complete reflecting surface).

Fig. 5 shows angle and distance condition, can use the thickness of plate 11 according to these condition width s vAnd the refractive index n of material is represented.In Fig. 5, light beam hArrive the semitransparent reflecting surface of the side 11a of first planopaallel plate 11 with angle of arrival ε, it continues its path with refraction angle ε ' along its path, and because these are alternate angles, so it arrives the relative side 11a ' of first planopaallel plate 11 and the intersection point of first end face 15 with same angle.By the limit s, vWith cIn the right-angle triangle that forms: $\sin {\mathrm{\ϵ}}^{,}=\frac{s}{c}$

s＝csinε’

Because $n=\frac{\sin \mathrm{\ϵ}}{\sin {\mathrm{\ϵ}}^{,}},$ $\sin {\mathrm{\ϵ}}^{,}=\frac{\sin \mathrm{\ϵ}}{n}$

$c=\sqrt{{\mathrm{<figure-callout\; id="2"\; label="s"\; filenames="A0081941700361.png,A0081941700371.png"\; state="\{\{state\}\}">s</figure-callout>}}^2+v^2}$ $s=\frac{\sqrt{s^2+{\mathrm{<figure-callout\; id="2"\; label="v"\; filenames="A0081941700361.png,A0081941700371.png"\; state="\{\{state\}\}">v</figure-callout>}}^2}\sqrt{2}}{2n}=\frac{\sqrt{2({\mathrm{<figure-callout\; id="2"\; label="s"\; filenames="A0081941700361.png,A0081941700371.png"\; state="\{\{state\}\}">s</figure-callout>}}^2+v^2)}}{2\mathrm{<figure-callout\; id="2"\; label="n"\; filenames="A0081941700361.png,A0081941700371.png"\; state="\{\{state\}\}">n</figure-callout>}}$ $2\mathrm{sn}=\sqrt{2({\mathrm{<figure-callout\; id="2"\; label="s"\; filenames="A0081941700361.png,A0081941700371.png"\; state="\{\{state\}\}">s</figure-callout>}}^2+v^2)}$

4s ²n ²＝2(s ²+v ²)

4s ²n ²-2s ²＝2v ²

s ²(4n ²-2)＝2v ² $s^2=\frac{2{\mathrm{<figure-callout\; id="2"\; label="v"\; filenames="A0081941700361.png,A0081941700371.png"\; state="\{\{state\}\}">v</figure-callout>}}^2}{4n^2-2}=\frac{{\mathrm{<figure-callout\; id="2"\; label="v"\; filenames="A0081941700361.png,A0081941700371.png"\; state="\{\{state\}\}">v</figure-callout>}}^2}{2n^2-1}$ $s=\frac{v}{\sqrt{2n^2-1}}$

In fact, the light beam that begins at target source not only arrives from receive direction 5, and arrives from the many different directions in the certain angle scope.End face 11b that optics is flat and 12b can be proved to be in image produces, play a part whole, but plating mercury is had to be in its surface, because if do not plate mercury, then have the light beam that arrives with angle, and they leave simply less than the cirtical angle of total reflection.For the light beam relation that is not parallel to receive direction $s=\frac{v}{\sqrt{2n^2-1}}$ Invalid, different incident angles relates to different slightly width, but its mean value equals s, in any case use this width to conform to the actual situation thus.

Fig. 6 shows as the skeleton view according to complete optical beam-splitter unit of the present invention of being constructed in Fig. 4, but illustrates with less ratio; Label is used according to the meaning of its front.Plane- parallel plate 11,12,13 and 14 is rectangular parallelepipeds of projection on the side of square prism BCDA ' B ' C ' D '.First of two continuous reflection faces that intersect each other with X-shaped (do not emphasize for clear Fig. 6 here and label not, but in Fig. 4, be clearly shown that and carrying out enough explanations in the text) by the method for drawing by

By angle point JAA ' KThe semitransparent reflector side of first planopaallel plate 11 that is limited,

By angle point ABB ' ASecond end face of the prismatic reflection of second planopaallel plate 12 that is limited,

By angle point HNOH 'The semitransparent reflector face portion of the side of the 3rd planopaallel plate 13 that is limited, and

By angle point BHH ' B 'The complete reflecting surface part of the side of the 3rd planopaallel plate 13 that is limited BHH ' B 'Form, and second by

By angle point ALMA 'The semitransparent reflector side of second planopaallel plate 12 that is limited,

By angle point ADD ' A 'First end face of the prismatic reflection of first planopaallel plate 11 that is limited,

By angle point DFF ' D 'The complete reflecting surface part of the side of Siping City's parallel planes plate 14 that is limited DFF ' D ', and

By angle point FPOF 'The semitransparent reflector face portion of the side of Siping City's parallel planes plate 14 that is limited forms.

Equally, for uniform light intensity, by angle point EDD ' E 'The surface portion of the trailing flank of first planopaallel plate 11 that is limited and by angle point BGG ' B 'The surface portion of second planopaallel plate 12 that is limited is provided with the semitransparent reflector coating.

Fig. 7 show with the planopaallel plate 11-14 of optical beam-splitter unit 22 is connected to one another may practical ways, dull and stereotyped 11-14 is according to the structure shown in Fig. 4-6, overlooks from above to be X-shaped and to connect, dull and stereotyped 11-14 is by transparent material, promptly glass is made.Thus, the unit of X-shaped is assemblied in the slit 18 of X-shaped, and slit 18 is carved in back up pad 17 and 19, thickness v'＞ v(groove 18 that only is formed on the back up pad 17 shows in the drawings).Back up pad 17 and 19 is parallel to each other, and groove is carved into its surface relative to one another.The width of groove almost with the width of plate 11-14 vIdentical, and its degree of depth also is fit to be assemblied in the size of plate wherein.Back up pad 17 and 19 plane are perpendicular to the plane of planopaallel plate.

Under the situation of said structure embodiment, in two foursquare back up pads 17,19 following one as base plate, and top one as cover plate.Plate 11-14 can be fixed in the groove 18 along its surface perpendicular to the end face of its reflecting surface, and fall into how much diagonal line of back up pad, in this structure, plate 11-14 is 9 connections along the limit, a limit separately, four planopaallel plate edges contacts with each other, and its end face surrounds empty square Prism-Shaped regional 8, promptly penetrates prism.

Fig. 8 shows the further possible embodiment of practical structure of optical beam-splitter unit.According to this chart board 11 and 13 and planopaallel plate 12 and 14 integrally manufactured in the following manner, promptly they at an end at its two ends by width are v, length is v, the degree of depth is v Part 20 connect, part 20 is by making with plate self identical materials.This structure causes that cross sectional dimensions is the breach 20a that is opening of vvv between plate 12 and 14 downwards, and causes the breach 20b. (certainly, breach 20a and 20b also can drive in the side) that is upwards opening between plate 11 and 13.In other words, the side of two pairs of plates that are made into integration is in couples in a plane, and they each other apart v, connect by the part 20 that is of a size of vvv.Go up each other among a pair of plate 12,14 that has a pair of plate 11,13 of breach 20a and have a breach 20b is directed into each other and by being tightly fixed or on their surface of contact, stick together each other in known manner.The part of the optical beam-splitter unit of Zhi Zaoing is shown in the bottom of Fig. 8 by this way, and it has width from the edge surface measurement perpendicular to the intersection 4 of crossed reflex mirror v, this part is not participated in image and is shown, because keep the length of part of first end face 15 of the prismatic reflection of second end face 16 of the prismatic reflection of second planopaallel plate 12 freely and first planopaallel plate 11 only to be after in plate is imported into each other m- v

According to another structure that does not illustrate among the figure, the foursquare planopaallel plate of being made by transparent material is the plastic injection flitch, and on the rectangular edge surface of intersection of itself and reflecting surface, has stop pin, the parallel axes of stop pin is in above-mentioned intersection, and plate 11-14 can be assemblied in the hole on the receiving optics thus.

Have many other will be according to the planopaallel plate of optical beam-splitter unit of the present invention method connected to one another.If the thickness of planopaallel plate is much smaller than the diameter of pupil, then planopaallel plate to have width be that the edge of s needn't be made into to reflect or translucent reflection is set paints, because in image, only bright slightly line will occur, rather than above-mentioned bright line, and this applicability of not bothering this device falls under suspicion in some applications.If the thickness of planopaallel plate is near the situation of the theory of " unlimited thin ", what for form continuous surface to the semitransparent reflecting surface that does not have the flat end face X-shaped mirror optical beam-splitter unit of above-mentioned optics, and the shade of intersection region can not be noted in image.Because planopaallel plate is so thin, maximum 1/10th or two millimeters thick, they are very frangible, and for example they can be fixed between the back up pad and cover plate of the rigidity with slit as shown in Figure 7.Be this structure in Fig. 9 a.Here back up pad 17,19 is held togather in a side by floor or backboard 21, and in this way, promptly the planopaallel plate that 0.1mm is thick is placed in the U-shaped yoke.The planopaallel plate that is fixed in this U-shaped yoke forms the X-shaped unit when overlooking.Fig. 9 a shows assembling, remain on plate 11 in the X-shaped slit in the side of plate 17,19 respect to one another ', 12 ' and 13 '.In Fig. 9 b, according to the planopaallel plate 11 of Fig. 9 a ', 12 ' and 13 ' the xsect perpendicular to the intersection of crossed reflex mirror of the zone of intersection be exaggerated and illustrated.As shown in the figure, beam-splitter unit according to the present invention is made of by this way three plates, be planopaallel plate 11 ' and 13 ' end face near thin planopaallel plate 12 ' the middle part, plate 12 ' be two double-lengths of other plate is so that they are in relative both sides and be each other elongated surfaces.

Figure 10 and Figure 11 show optical beam-splitter unit 22, and this unit is X-shaped when overlooking, and are made of four transparent planopaallel plates, for example, from Fig. 4 and 6 as can be seen, and are represented by single label here.The both sides of optical beam-splitter unit are provided with two first focusing elements 24.The semitransparent reflecting surface marked with dotted lines of unit 22.The common axis 23 of the first focusing element 24 pass planopaallel plate the crossed reflex mirror intersection 4 and fall into the bisector plane of semitransparent reflecting surface.The first focusing element 24 is achromatic lens system of multiple-unit combination, the first focusing element 24 has four elements in this special case, direction from its optical axis 23, they are rectangular, be that its border is the plane, and these planes overlap with the general plane of the X-shaped mirror optical beam-splitter unit 22 of the optical axis 23 that is parallel to the first focusing element 24.The catoptron 25 of two eyes fronts is positioned at the both sides of the first focusing element 24, and the angle of the reflecting surface of two catoptrons and its optical axis 23 is 45 ° ± 15 °.The intersection on the plane of these mirror reflection surface (do not illustrate among the figure, it is outer that intersection is positioned at figure) is parallel to the intersection 4 of crossed reflex mirror.In Figure 10, we are designated as the path of incident beam a, this light beam partly is drawn towards the people's who uses this device left eye and right eye by reflection by transmission by the translucent surface portion of X-shaped mirror optical beam-splitter unit 22 (simultaneously referring to Fig. 4).The lens that form the first focusing element 24 of four unit achromatic lens system can be connected with each other by they are sticked together.As previously described, it is rectangular that the first focusing element 24 is watched from the direction of its optical axial 23, the border that is them is the plane, and these planes with overlap and overlap with both sides from receiver side optical beam-splitter unit 22 farthest near the both sides of the optical beam-splitter unit 22 of receiver side, and also overlap with up-and-down boundary face perpendicular to crossed reflex mirror intersection 4.The catoptron 25 of eyes front is the flat glass mirror, and its minute surface towards the first focusing element 24 was handled with mercury.Its shape is an irregular quadrilateral, so that be fit to the shape of light path, its both sides are parallel to the intersection 4 of crossed reflex mirror, and other two edges can combine in a bit near the direction on the limit of eyes.

According to the binocular display device of Figure 10 and Figure 11 because that it takes up space is little, in light weight and compact conformation, thus can be satisfactorily as such as endoscope, laparoscope, microscope and telescopical based on the instrument that amplifies and the binocular display device of optical devices.In fact the element of this device is connected to each other, and perhaps uses framework or the box of himself, perhaps uses the framework or the box of above-mentioned instrument and optical devices.

Image show tools according to Figure 12 and Figure 13 has X-shaped mirror optical beam-splitter unit 22 (Fig. 4 and Fig. 6) equally, wherein two first focusing elements 24 are in its both sides, and the both sides of this device also have the catoptron 25 of eyes front, are similar in the structure shown in Figure 10 and Figure 11.These devices are contained in the shell 28, and shell 28 has the light inlet 28a corresponding to the light path size, and 28b, light inlet 28a, 28b are positioned at the front of catoptron of eyes 25 fronts and the side that is positioned at X-shaped mirror optical beam-splitter unit 22 towards receive direction 5.In light inlet 28a, be provided with focusing element 29.As shown in figure 13, shell 28 encases the optical element of device in the mode of compactness; In Figure 13, also can clearly see the position of opening 28a and 28b.Is the small-sized magnifier of binocular according to its feature at the device shown in Figure 12 and Figure 13, and when at light inlet 28a, when 28b watched, the user can enough binoculars sees the enlarged image of target source, and target source is on the focal length of the receive direction of beam path or nearer position.As if the target source that is positioned at focal length just is at unlimited distance, and reduces the virtual distance apart from the virtual image from target source and also reduce and any desired virtual image distance can be set, for example, half meter object that is used for watching hand is set usually.For fear of distortion and can see entire image, the center of the catoptron of two eyes fronts should approximate user's interpupillary distance greatly, and for same purpose, variation according to people's interpupillary distance, people need have the device of different eyepiece distances, in most of the cases interpupillary distance 55 and 70mm between.In fact, it is just passable to make the small-sized magnifier of binocular with 3mm increment, promptly has six different distances (have 55,58,61,64,67 and the eyepiece centre distance of 70mm), and the user can use the most suitable own interpupillary distance.The advantage of this structure is that it does not comprise any moving-member, and it does not need to adjust, and shortcoming is that it has to can not be used by the people with different interpupillary distances with six different size manufacturings and same device.

Device according to Figure 14-16 is the small-sized magnifier of binocular, wherein both sides have the X-shaped mirror optical beam-splitter unit 22 of a pair of first focusing element 24, for example shown in Fig. 4 and 6, be arranged in the housing 30, the middle part of the side in the longer side of the two ends of housing and housing has light inlet, and on its sidewall, be provided with lug 31, be provided with screw thread fixed orifice 32 in the end of sidewall by the inside of wall reconditioning manufacturing.The X-shaped mirror optical beam-splitter unit 22 and the first focusing element 24 are closed from the top by plate 33, and plate 33 is by its outstanding being supported on the lug, and have hole 34 in the middle part of plate 33, and have two pins 35 on its relative both sides.Superincumbent have flange 36 on outstanding, and flange 36 be that the slide plate petioliform of first slide plate 37 that moves at plate 33 and second slide plate 38 is into about beam path from the outside.Constrained path is made of the pin 35 of gear 39 and plate 33 on the inboard of first slide plate 37 respect to one another and second slide plate 38.When gear 39 rotates, it with the slide plate handle that is formed on first slide plate 37 and second slide plate 38 on tooth bar 40 engagements, and it makes first slide plate 37 move and second slide plate 38 is moved along opposite direction along a direction.Gear 39 has an axle, and it and to have a wheel 41 of groove integrally formed, it 42 is assemblied in downwards in the hole 34 of plate 33, and upwards is assemblied in the blind hole that is arranged in cover plate 43 middle parts, does not mark.Cover plate 43 is measure-alike with housing 30, has identical in four through holes 44 and four holes 32 of housing 30 of Qi Sijiao, and can be fixed on the housing 30 by screw 45 cover plates 43.

According to Figure 15, when the wheel 41 that has groove when first direction 46 is rotated, the gear 39 integrally manufactured with it moves first slide plate 37 and moves second slide plate 38 along third direction 48 along second direction 47.The motion of a direction is blocked by the projection on tooth bar 40 ends, and the motion of another direction is blocked by the short column 34 on the end that reduces gradually of first slide plate 37 and second slide plate 38.

Cover plate 43 according to the device of Figure 16 assembling exposes the edge of the wheel 41 that has groove on certain part, if and rotate with finger tip, the catoptron 25 that is installed in the eyes front on first slide plate 37 and second slide plate 38 perhaps moves along opposite direction simultaneously or towards housing 30.

Because in according to previously described structure, the catoptron of eyes front is installed on the slide plate of housing the inside, this makes it possible to according to the distance of interpupillary distance along the catoptron of the direction adjusting eyes front that is parallel to focusing element optical axis, and everyone can both use same device thus.Slide plate can be an axis gear parallel to each other, force moving linearly by constrained path, and a gear that is fixed on the housing by axle is connected to each other, and have at two gears between the side of tooth, so as the formation system, and thus, by rotating and the adjusting wheel that have groove of gear on same axle, two slide plates and parallel to each other but move in opposite directions with their two eyepieces together make two catoptrons regulating the eyes front convenient.Because the semitransparent reflecting surface of optical beam-splitter unit is reduced to initial 1/4th with light intensity, therefore for the reduction that compensates light intensity and guarantee that better illuminating target source conforms to the actual situation, optimal way is, device comprises the light source of directive target source, for example, the light emitting diode and the less power supply of structure of white.Use the small-sized magnifier of binocular than using the more favourable of monotubular, because the small-sized magnifier of binocular is more suitable for the mode that human use's eyes are watched, people needn't close an eye, or look side ways with it, thereby, can cosily work by enough this binocular devices when cosmetics research and precision optical machinery work when carrying out medicine long-time or that often repeat.In particular for the small-sized magnifier of binocular of work, by means of headband, the head that eyeglass frames or bridge of the nose folder are worn over the user uses most convenient.If it is more favourable that the small-sized magnifier of binocular is connected on headband or the eyeglass frames with linkwork, thus when suspend using this device, it can be boosted forehead above.

The structure that below description is comprised target source.Target source is positioned at the front according to the receiver side of X-shaped mirror optical beam-splitter unit of the present invention, with the rectangular plane of receive direction in.Target source can be opaque, and is translucent or transparent, is illuminated or illuminated fully by the light of external environment condition, is illuminated or illuminates fully by light source or self are luminous.According to its concrete effective and efficient manner, it can be the microfilm picture, lantern slide picture, papery picture, picture or print text, electronic curtain or other target source.

According to Figure 17 and embodiment shown in Figure 180, in front as the receiver side of the X-shaped mirror optical beam-splitter unit of the image display apparatus of virtual monitor, at the little display unit 49 that has facing to a side of arrow 5 that shows receive direction as target source with light emitting display 49a, and unit 22 is sealed from both sides by two on each side focusing elements, and the outside at the focusing element has a catoptron in the front of each eye, with Figure 10 and Figure 11, Figure 12 and Figure 13, and the layout of the embodiment shown in Figure 14-16 is identical.The plane parallel of display screen 49a is in crossed reflex mirror intersection 4.By voltage and the electric signal of cable 50, not shown from power supply and video signal source supply display screen 49a necessity.X-shaped mirror optical beam-splitter unit 22, the first focusing element 24 and little display unit 49 are arranged in the crust of the device 51, crust of the device 51 comprises light inlet 51a, 51b between catoptron 25 and a pair of first focusing element 24, and on a side relative between the planopaallel plate of unit 22 with little display unit 49, has the recess 52 that has utilized the space that does not fall into light path, so that be fit to the bridge of the nose.Have hook-type rail 53 in the both sides of recess 52, its bus is parallel to the crossed reflex mirror intersection 4 of X-shaped mirror optical beam-splitter unit 22, and because these hook-type rails 53, this device can be placed on the back up pad, and is not shown, and its width is suitable for the spacing of hook-type rail 53.For example, if described back up pad is positioned at the middle part of eyeglass frames, this device can be adorned thereon, and if it be fit to just, device can move up and down and can be parked in Anywhere along back up pad, for example, just in the front of pupil.

The catoptron 25 of each eyes front all is connected on the reflector mount unit 54, reflector mount unit 54 is connected on the slide plate 56 by means of the joint of its parallel axes in the crossed reflex mirror intersection 4 of unit 22, if the user of device rotates the wheel 57 that has groove with finger tip, the joint is moved by pinion and rack, and pinion and rack can study and also explain in detail (not shown) in great detail in the above here in Figure 14 and 15.Reflector mount unit 54 with the support that extends previously at eyes is connected joint 55, and reflector mount unit 54 can be folded up towards the first focusing element 24 with catoptron 25 thereon, has greatly reduced the volume of binocular display device thus.The physical size of binocular display device when catoptron is folded up can be so little (for example, 1.5 * 2.5 * 3.5cm), so that it can be placed on the recess of making in the shell of any video signal source (not shown) that is used for this purpose with the back, perhaps is connected with the connector that forms on shell 51.

Folder formula connector shown in Figure 180 is designated as a unit by label 58, and it comprises with the twisted plate 59 according to the curved surface of the recess 52 in the crust of the device 51 of Figure 12, along the clamping plate 60 of this curved surface continuity, and from the two sides towards the elasticity wing plate 61 of hook-type rail 53 projectioies.Folder formula connector 58 is connected on the crust of the device 51, so that the end of wing plate 61 is guided between the hook-type rail 53.Clamping plate 60 dot with respect to the position of user's bridge of the nose in the drawings, and folder formula connector can be fixed by the positive opening elastic plate.Tightly be worn on the bridge of the nose from both sides owing to its elasticity at clamping plate 60 as pince-nez by position shown in the dotted line.Clamping plate 60 also can be integrally manufactured with crust of the device 51, do not need to press from both sides formula connector 58 and hook-type rail 53 in this case.

Luminous target source can be used as virtual display and is arranged in the device according to Figure 17, be positioned at the front of X-shaped mirror optical beam-splitter unit receiver side, as AMEL (active matrix electroluminescence), OLED (Organic Light Emitting Diode), FED (Field Emission Display), AMOLEP (active matrix organic light-emitting condensate), the miniature display unit of OEL (organic electroluminescent) or VFOS (based on the vacuum fluorescence of silicon), as previously described, luminous target source passes through cable 50 from the entrained video signal source (mobile phone of user, communicator, palmtop computer, DVD player, video-game, video camera recorder, label cameras etc.) supplying with it operates needed voltage and electric signal.Also can be arranged in the above-mentioned video signal source according to device of the present invention, in this case, the user must lift video signal source its eyes place and watch the eyepiece of binocular display device.Adopt the mode of associating can be favourable, the binocular display device that be fixed on the video signal source this moment also can be watched, and when when wherein taking out, also can be worn on the head, especially at mobile phone, under the situation of video camera and label camera.Figure 19 and Figure 20 show this structure, be used as viewfinder or be used as monitor according to Figure 10 and device of the present invention shown in Figure 11, be arranged on corder 62, it is a side relative in the end of video camera with object lens 63, so that the optical axis 23 of the first focusing element 24 (Figure 20), here not shown, perpendicular to second optical axis 64 of object lens 63.When inoperation, the catoptron 25 of eyes front is folded up, and the binocular display device is placed in the recess that is formed in the camera housing, and this recess is covered by lid 65.When slider 66 retracts, skid off in the constraint tracks that forms by camera housing from recess with the device of its mechanical connection, open the lid 65 of its front downwards, and the catoptron 25 of eyes front launches fully by means of spring-loaded joint 55 (seeing Figure 17).Replace this mechanical driving mechanism, can construct other mode, wherein by motor device is pulled out and retracted by touching the button.

Can in comprising the variant of image record device (camcorder) equally, video camera and its be used as viewfinder/monitor according to image display device of the present invention thus.

Traditionally, use two types viewfinder: wherein a kind of is common monocular monitor, the screen that wherein is arranged on the miniscope in the video camera is watched with eyes by front lens, and this is factitious, and is weary and make the another anorthopia.In another case, have folding flat display board monitor on the shell of video camera, but smaller for the size that is suitable for field camera, he can be the same big with half of palm when maximum, and its viewing effect is not fine, and the details of image almost can not be seen.

In Figure 19 and embodiment shown in Figure 20, the image of device can be watched in this locality by the catoptron of opening the eyes front, and perhaps this device also can take out and be fixed on head from video camera.Because the video camera (palm corder) of modern hand size is thinner than interpupillary distance, when this video camera is picked up, in the time of between two, because understanding strabismus, people watch, so can not watch simultaneously with two, only its support component just can be used for binocular at the eyepiece of eyes front opening and watches.This produces a kind of optical effect, and is bright promptly around opaque, have have in all directions of the virtual image of seeing in the catoptron of eyes front of contrast at least to one in two be image clearly, promptly in fact video camera disappears from the visual field.Especially favourable for the people who is engaged in video recording, because when they watch the image of viewfinder with eyes, they can see the All Ranges around image, and anything and sight line are shielded.

According to Figure 21, device according to the present invention is installed in the end of mobile phone 67 as viewfinder, and in other words, this device is as the viewfinder of mobile phone.The catoptron 25 of eyes front is opened the back demonstration virtual image by complete mechanical ground or by motor.

Because the less screen of mobile phone self only is suitable for showing less picture and Word message, for example internet address or whole Email page or leaf can not be read on this size.Owing to this reason is installed in device according to the present invention in the shell of mobile phone, or it is connected the battery charge link of mobile phone as external adapter, this is favourable.According to Figure 21, device is arranged on the end of mobile phone in this embodiment, the catoptron of eyes front is folded up, and be placed at the moment by the catoptron of expansion eyes front and by it is lifted, can watch in this locality, perhaps it can be taken out and be worn over head from the shell of mobile phone.

Comprise according to the structure of image display device shown in Figure 22 of the present invention actiniform, for example, OLED miniscope 49.This similar is in structure shown in Figure 17, and therefore the label that is used among Figure 12 also is used among Figure 22.In the light path between the X-shaped mirror optical beam-splitter unit 22 and the first focusing element 24, have liquid crystal shutter 69, dimmer 69 is followed the picture frequency of the alternation phase place of miniscope 49, influence by voltage blackening or transparent.

According to structure at image display device shown in Figure 23, optimal way is the head that is connected to the user according to device shown in Figure 17 by means of bracing frame 70, bracing frame 70 is made up of following elements: the side arm 71 of two Metal Eyeglasses, connect them and be attached to metal nose roof beam structure 73 on them with articulated structure 72, be welded to two bridge of the nose sway braces 74 on the nose-bridge frame 73, be connected two bridge of the nose supporting pads 75 on the end of bridge of the nose sway brace 74, and be welded on the nose-bridge frame 73 two U-shapeds in bottom closure and clamp cross bars 76, two overhanging ends of the side of the crust of the device 51 relative with little display unit 49 can be directed to and slide up and down therein.Nose-bridge frame 73 is the narrow sheet metals that have similar material and profile with the side arm 71 of glasses, planes overlapping on its upper surface and the side arm 71 that is positioned at glasses or parallel, and owing to this reason, when the user has on it, it can be seen from the side that this plate maximum is 1.7mm, because it is littler than the diameter of pupil, therefore it only causes translucent hacures, and these hacures do not hinder and watch.In another embodiment, bridge of the nose sway brace 74 is tubular axles of adjustable length, here not shown, and by means of them, the distance of bridge of the nose supporting pad 75 and nose-bridge frame 73 can be adjusted, and the catoptron 25 that is connected device on the nose-bridge frame 73 and its eyes front by this mechanism can be placed vertically the front at eyes.

According to Figure 24, drive loop 77 having micro-display between the X-shaped mirror optical beam-splitter unit 22 of (Fig. 4 and Fig. 6) or a pair of first focusing element 24 and the crust of the device 51 according to the present invention, radio frequency receivers-transmitter loop 78, power supply 79 and microprocessor 80.Utilize this arrangement apparatus can be as far as possible compact, do not need electric wire with itself and control signal, vision signal be connected with power supply and necessary calculating, and Flame Image Process can solve in this locality with other tasks.

Consistent with the device among Figure 17 basically according to the device that the eyes mobile detection system is housed embodiment illustrated in fig. 25, except on an end of crust of the device 51, having the ccd image record chip 81 of sensitization in infra-red range here, and front lens 82 so is provided with on its other end, and promptly the 3rd optical axis 83 of front lens 82 meets at right angles with the searching surface 84 of ccd image record chip 81.On the eyepiece 25 that is positioned at right eye 27 fronts, be placed on the infra-red range internal reflection, in visible wavelength range, admit reflection of light element 85, the catoptron 25 of reflecting element 85 and eyes front is with a unit manufacturing, its size and angle are so definite, be it pass through front lens 82 will be from the pupil 86 of right eye 27, the beam reflection of iris 87 and sclera 88 beginnings is to searching surface 84.For right eye 27 evenly throws light on, on front lens 82, has infraluminescence diode 89, infraluminescence diode 89 is placed so that project on the reflecting element 85 from its infrared beam that begins with an angle, and after it reflected from reflecting element 85, infrared beam was projected onto on the right eye 27.Ccd image record chip 81, front lens 82 and infraluminescence diode 89 are arranged in the shell, and be not shown here, and shell comprises the light inlet that is positioned at front lens 82, and shell and crust of the device 51 merging.

Write down image that chip 81 detect by microprocessor analysis by ccd image by means of image processing program, microprocessor is installed in this device or by cable and connects thereon, and it can calculate the point on little display unit screen that eyes are watched from the motion of the profile of iris and/or pupil and position, and at this display highlighting, and it can also detect the profile of being hidden iris and/or pupil by eyelid (nictation) moment, and it clicks and represents it as order.Increase the iris of dark-coloured pupil and light color for the flash of light of condition that is independent of exterior light and the interference of avoiding eyes, or the contrast of the iris and the white of the eye (sclera), optimal way is that iris and its direct environment should be used infrared illumination, because the user cannot see it, so the user is not bothered by it.

At embodiment shown in Figure 26 is to help to look with night-vision devices and be device according to Figure 17 basically, but here on the top of crust of the device 51, on the recess 52 that is formed for nose, has ccd image record chip 90, on little display unit 49, has front lens 91, front lens 91 is so placed, and promptly the optical axis 92 of front lens 91 is vertical with the searching surface 93 of ccd image record chip 90.Ccd image record chip 90 and front lens 91 usefulness covers encase, and are not shown here, and cover comprises the light inlet that is positioned at front lens 91 and merges with crust of the device 51.The searching surface of ccd image record chip 90 falls into this plane, the plane that this plane parallel and crossed reflex mirror intersection (seeing the intersection 4 among Figure 17) by the optical axis of the first focusing element 24 and beam-splitter unit 22 are limited.The display screen 49a that the image that is write down by ccd image record chip 90 appears at little display unit 49 goes up (not shown in Figure 26), its light intensity, depend on actual setting, be many times of green strength, the people of low eyesight is under more weak lighting condition, for example can not suitably determine direction at night or under the half bright situation, it is favourable utilizing this device for the people of this low eyesight in this example.If ccd image record chip is sensitization near infrared range, suppose that there is the infrared light sources radiation in this zone, even showing on the display screen of little display unit that this infrared image can taken one's bearings the people who utilizes this device fully in the dark.

As Figure 27 and shown in Figure 28, the little display unit 49 that is placed on the receiver side of the unit of being made by translucent catoptron (also referring to Fig. 9 a-9c) as thin as a wafer 22 is reflective, its display screen 49a from the front by Fresnel lens 94 illumination of the opposite side that is positioned at unit 22, its major part or all in the space between planopaallel plate 13 and 14 and this Fresnel lens 94 make the parallel beam of light emitting diode 95 and the translucent surface by the first polariscope 96 and unit 22 that it is projected display screen 49a.By X-shaped mirror unit 22, the second polarizer 97a or the 3rd polarizer 97b, the first focusing element 24 and eyepiece 25 arrive eyes to light beam from display screen 49a.

According to embodiment shown in Figure 29, the binocular display unit comprises eyepiece 25a, be placed on the micro-display 49b between the eyepiece 25a, beam-splitter unit 22a, focusing element 24a, display casing 56a, microphone 108, nose clip 60a and flexible retainer plate 105, circle 105 is longer at the diameter at the place, plane of nose than user's head that it centered on.Retainer plate 105 parts form as cable, comprise two earphones 106, control module 107, and control module 107 or display casing 56a comprise following any one: the micro-display driver element, the radio frequency transceiver loop, label television reception loop, microprocessor and power supply.

Advantage according to optical beam-splitter unit of the present invention is that it occupies minimum space and quality minimum, and it can be placed by the near distance of expectation and target source, and the image of this device has outstanding quality.The advantage of binocular display device is to take up space little and light weight similarly, and its makes simple and its advantage its very many application possibility just.

The invention is not restricted to this device; or the embodiment of the device of quoting here, can implement different structures in the scope of the protected solution that claim limited, for example; for enlarged image, can place focusing element and translucent or complete transparent catoptron again.

Claims (33)

1. optical beam-splitter unit, it is included in common intersection 4 and begins to have transparent plane-parallel plate 6,7 towards the light reflection surface of separated beam bifurcation; 11,12, it is characterized in that:

Also in 4 beginnings of common intersection and in abutting connection with the plane-parallel plate 6,7 that comprises described light reflection surface; 11,12 side 6a, 7a; AJKA ', ALMA ' and the plane-parallel plate 6,7 that is perpendicular to one another; 11,12 end face 6b, 7b; ADD ' A ', ABB ' A ' is perpendicular to the side 6a relevant with it, 7a; AJKA ', ALMA ' and these end faces 6b, 7b; ADD ' A ', ABB ' A ' have plane and optical flat;

The transparent body 10 that at least one is made by transparent material; 13,14 in abutting connection with described planopaallel plate 6,7; 11,12, it comprises semitransparent reflecting surface, or by semitransparent reflector part and complete reflecting part 10a, 10b; DPOD ', the surface of BNOB ' composition and this is surperficial at described end face 6b, 7b; ADDA ' is in the plane of ABBA ' and from these end faces 6b, 7b; ADD ' A ', ABB ' A ' beginning makes its continuation.

2. according to claim 1 described optical beam-splitter unit, it is characterized in that:

It also has and is positioned at the light reflection surface AJKA ' that has towards separated beam bifurcation; In first plane-parallel plate of ALMA ' and the elongated surfaces of second plane-parallel plate 11,12 and in abutting connection with the 3rd plane-parallel plate and Siping City's face parallel-plate 13,14 as the transparent body of first plane-parallel plate and second plane-parallel plate 11,12;

All described planopaallel plates 11,12,13,14 are flat capable hexahedrons and they are along limit 15a-15b parallel to each other by the same material manufacturing with equal thickness v and refractive index n and they; AA ', BB ', CC ', DD ' are connected to each other and they form the X-shaped unit in perpendicular to the xsect of described fillet.

3. according to claim 2 described optical beam-splitter units, it is characterized in that:

A) its following part is transparent reflecting surface:

Side 11a towards first planopaallel plate 11 of the second adjacent planopaallel plate 12; AA ' KJ and advantageously have the part 11a of its opposite flank 11a ' of following width "; DEE ' D ' $s=\frac{.}{\sqrt{2n^2-1}}$ This width is from its limit 15c that is connected with Siping City's parallel planes plate 14, and 15d begins to measure, and the thickness of planopaallel plate is v in the formula, and the refractive index of material is n;

Reach side 12a towards second planopaallel plate 12 of first planopaallel plate 11; ALMA ' and advantageously having according to above-mentioned formula from itself and the adjacent limit 15e of the 3rd planopaallel plate 13,15f; The part 12a of its opposite flank 12a ' of the width s that BB ' begins to measure "; BGG ' B ';

Side 13a towards the 3rd planopaallel plate 13 of the second adjacent planopaallel plate 12; BNOB ' removes it and advantageously has according to above-mentioned formula from itself and the adjacent limit 15e of second planopaallel plate 12,15f; The part 13a of the width s that BB ' begins to measure "; BHH ' B ';

Side 14a towards Siping City's parallel planes plate 14 of the first adjacent planopaallel plate 11; DPQD ' removes it and advantageously has according to above-mentioned formula from itself and the adjacent limit 15c of first planopaallel plate 11,15d; DD " the part 14a ' of the width s that begins to measure; DFF ' D '; And

B) part below it is complete reflecting surface:

Side 13a towards the 3rd planopaallel plate 13 of the second adjacent planopaallel plate 12; The part 13a ' of BNOB '; BHH ' B ' advantageously has according to above-mentioned formula from itself and the adjacent limit 15a of second planopaallel plate 12, the width s that 15b begins to measure;

Side 14a towards Siping City's parallel planes plate 14 of the first adjacent planopaallel plate 11; The part 14a ' of DPQD '; DFF ' D ' advantageously has according to above-mentioned formula from itself and the adjacent limit 15c of second planopaallel plate 12,15d; The width s that DD ' begins to measure; And

C) part below it is an optical flat:

End face 13b with the 3rd planopaallel plate 13; The end face 11b of first planopaallel plate 11 that CBB ' C ' is relative; ADD ' A '; And

End face 14b with Siping City's parallel planes plate 14; The end face 12b of second planopaallel plate 12 that CDD ' C is relative; ABB ' A '.

4. according to claim 1 described optical beam-splitter unit, it is characterized in that: described end face 6b, 7b; ADD ' A ' is to plate mercury on the outside surface of ABB ' A '.

5. optical beam-splitter unit, it is included in common intersection 4 and begins to have transparent planopaallel plate towards the light reflection surface of separated beam bifurcation, it is characterized in that it has four planopaallel plates 11,12,13,14, each is than 0,4mm is thin, their form X-shaped unit, wherein adjacent described planopaallel plate 11,12 in the xsect vertical with intersection 4,13,14 angle and the described light reflection surfaces that form 90 ° ± 20 ° each other are the optical layers that partly reflect and partly transmit natural light or polarized light.

6. optical beam-splitter unit, it is included in common intersection and begins to have transparent planopaallel plate towards the light reflection surface of separated beam bifurcation, it is characterized in that this unit have three planopaallel plates (11 ', 12 ', 13 '), each is than 0, and 4mm is thin, they form X-shaped unit (22) in the xsect vertical with described intersection (4), two wherein short described planopaallel plates (11 '; 13 ') end face abut the middle part on described the 3rd planopaallel plate surface, so that they form elongated surfaces each other on each side of described the 3rd planopaallel plate, and in described unit (22) long described planopaallel plate (12 ') and short described planopaallel plate (11 ' and 13 ') angle each other be individually 90 ° ± 20 ° and described planopaallel plate (11 ', 12 ', 13 ') or translucent catoptron, or transmit fully along the composition of the light of a direction polarization and partly transmission and partly reflecting along the polarizer of the composition of the light of another direction polarization.

7. binocular image-display units, it comprises optical beam-splitter unit, the catoptron 25 that comprises the first focusing element 24 and eyes front in addition, it is characterized in that its optical beam-splitter unit is with the same according in claim 1 to the 6 described optical beam-splitter unit any and when when the direction of the light beam of the semitransparent reflecting surface that arrives described optical beam-splitter unit is seen, promptly from receive direction 5, two described first focusing elements 24 are arranged on the common optical axis 23 of relative both sides of described optical beam-splitter unit and the described first focusing unit 24 perpendicular to described receive direction 5, and in both sides, the outside at the described first focusing element 24, catoptron 25 is positioned at the front of eyes, and the reflecting surface of these catoptrons and above-mentioned optical axis 23 shapes are at 45 ± 15 ° angle (δ), and the intersection on the plane of the reflecting surface of these catoptrons 25 is parallel or perpendicular to the intersection of the crossed reflex mirror intersection 4 of the semitransparent reflecting surface of described optical beam-splitter unit 22.

8. according to claim 7 described devices, it is characterized in that: described optical beam-splitter unit 22, the catoptron 25 of described first focusing element 24 and described eyes front is installed in the cover 28, cover 28 comprises described catoptron 25 fronts that are positioned at the eyes front and at the light inlet 28a of described optical beam-splitter unit 22 receiver sides, 28b.

9. according to claim 7 described image-display units, it is characterized in that: described optical beam-splitter unit 22 and the described first focusing element 24 are fixed in the housing 30, housing 30 has the light inlet at the described first focusing element 24 places, and housing 30 is covered by cover plate 43, and the catoptron 25 of described eyes front is connected on first slide plate 37 and second slide plate 38, the slide plate handle that stretches into housing 30 is a tooth bar 40 parallel to each other, and has in the middle of two tooth bars 40 and two tooth bars 40 are connected and can move their gear 39 along opposite direction.

10. according in claim 7 to the 9 described image-display units each, it is characterized in that: it comprises target source.

11. according to claim 10 described image-display units, it is characterized in that: described target source is the display screen 49a of little display unit 49.

12. according to claim 11 described image-display units, it is characterized in that: the plane parallel of described little display unit 49 display screen 49a is in by the intersection 4 of crossed reflex mirror and the plane that is limited by optical axis 23, and it is placed on the receiver side of optical beam-splitter unit 22.

13. according to claim 12 described image-display units, it is characterized in that: this unit comprises that at least one illuminates the light source such as light emitting diode 95 of described little display unit 49 display screen 49a.

14. according to claim 12 or 13 described image-display units, it is characterized in that: have the reflection or the focusing element 94 that are placed on described element 22 opposite sides in the front of the display screen 49a of described little display unit 49, described reflection or focusing element 94 project the light beam of described light source on the described display screen 49a, and preferred implementation is that light source is a light emitting diode 95.

15. according to claim 12 described image-display units, it is characterized in that: this unit comprises and illuminates little display unit 49 light source everywhere from behind, and it is placed between described little display unit 49 and the crust of the device 51.

16., it is characterized in that:, in light path, have liquid crystal shutter 69 perpendicular to the first focusing element, 24 optical axises in the both sides of described optical beam-splitter unit 22 according in claim 12 to the 15 described image-display units each.

17. according in claim 12 to the 16 described image-display units each, it is characterized in that: described unit comprises two clamping plate 60 that are made into integration with crust of the device 51.

18. according in claim 12 to the 16 described image-display units each, it is characterized in that: have the hook-type rail 53 that is made into integration with crust of the device 51 on the side of described crust of the device 51 near user's head, their bus is parallel to each other.

19. according to claim 18 described image-display units, it is characterized in that: described device comprises the folder formula connector 58 that is fixed between the described hook-type rail 53.

20. according to claim 19 described image-display units, it is characterized in that: described folder formula connector 58 comprises the twisted plate 59 along with the curve of the recess 52 in the described crust of the device 51, two clamping plate 60 and wing plate 61, the spacing width of described wing plate 61 equals the distance between the described hook-type rail 53.

21. according in claim 18 to the 20 described image-display units each, it is characterized in that: described unit comprises bracing frame 70, support frame as described above 70 is by the side arm 71 of two glasses, connect them and be attached to nose-bridge frame 73 on them with articulated structure, be connected to bridge of the nose sway brace 74 and device fixed cell on the described nose-bridge frame 73.

22. according to claim 21 described image-display units, it is characterized in that: described nose-bridge frame 73 is narrow boards, the planes overlapping on its upper surface and the side arm 71 that is positioned at described glasses or parallel, and its maximum ga(u)ge s is 1.7mm.

23. according to claim 21 or 22 described image-display units, it is characterized in that: the described bridge of the nose supports and comprises two sensings down, parallel to each other and be set at bridge of the nose sway brace 74 with the position of the center same distance of nose-bridge frame 73, and two bridge of the nose supporting pads 75 that are connected on described bridge of the nose sway brace 74 ends, and the device fixed cell by two sensings down, in bottom closure, parallel to each other and be set at the U-shaped fixed transverse rod 76 of the position of the center same distance of nose-bridge frame 73 and form.

24. according in claim 7 to the 23 described image-display units each, it is characterized in that: described unit comprises that at least a micro-display drives loop 77, and/or radio frequency receivers-transmitter loop 78, and/or power supply 79 and/or microprocessor 80.

25. according in claim 7 to the 24 described image-display units each, it is characterized in that: the ccd image record chip 81 that on described crust of the device 51 1 ends, has sensitization in infra-red range, and front lens 82 is provided with like this on its other end, the 3rd optical axis 83 that is front lens 82 meets at right angles with the searching surface 84 that described ccd image writes down chip 81, in the internal reflection of infrared ray outside line scope, the transparent and reflecting element 85 on the eyepiece 25 of right eye 27 fronts is placed in the light path between right eye 27 and the searching surface 84 in visible wavelength range.

26., it is characterized in that: on described front lens 82, have infraluminescence diode 89, and its light is directed into described reflecting element 85 according to claim 25 described image-display units.

27. according in claim 7 to the 24 described image-display units each, it is characterized in that: in described crust of the device 51, be formed on the recess 52 of nose, the top of described crust of the device 51 is provided with the ccd image record chip 90 with searching surface 93, the plane that the plane parallel at searching surface 93 places and intersection 4 by the first focusing optical axis 23 of element 24 and crossed reflex mirror are limited, and the front at ccd image record chip 90 is provided with second front lens 91 that has perpendicular to the 4th optical axis 92 of described searching surface 93 on described little display unit 49.

28. binocular display unit, this binocular display unit comprises eyepiece 25a, be placed on the micro-display 49b between the described eyepiece 25a, beam-splitter unit 22a, focusing element 24a, the nose-bridge frame of display casing 56a and nose clip is characterized in that: it draws together flexible retainer plate 105, at place, the residing plane of nose, the length of described retainer plate 105 is longer than the diameter of user head.

29. according to claim 28 described image-display units, it is characterized in that: described retainer plate 105 parts form as cable.

30. according to claim 29 described image-display units, it is characterized in that: described retainer plate 105 comprises two earphones 106.

31. according to claim 30 described image-display units, it is characterized in that: display casing 56a comprises microphone 108.

32. according in claim 29 to the 31 described image-display units each, it is characterized in that: described retainer plate 105 comprises control module 107.

33. according to claim 32 described image-display units, it is characterized in that: control module 107 or display casing 56a comprise any element in the following element: the micro-display driver element, the radio frequency transceiver loop, Digital Television receiving loop, microprocessor and power supply.

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