Utility model content
In view of this, the technical problems to be solved in the utility model is just to provide a kind of wear-type visual device, solvesExisting wear-type visual device can not effectively utilize LCOS display to cause equipment volume huge, and is not applied for regardingThe problem of power is not good enough crowd.
In order to solve above-mentioned technical problem, a detailed description of the invention of the present utility model provides a kind of wear-type visually to setStandby, including: LCOS display, for reflective imaging；Light source, is arranged side by side with described LCOS display,For providing the luminous energy needed for reflective imaging to described LCOS display；Optical module, shows with described LCOSDevice and described source parallel are arranged, for the light of described light source being reflexed to the surface of described LCOS display, andThe display image of described LCOS display is sent to human eye.
Wherein, described optical module includes: diopter regulation battery of lens, is obliquely installed in described LCOS displayShow on image direction of transfer and do not block human eye horizontal line of sight, for collimating amplification from described LCOS displayDisplay image.
Wherein, described diopter regulation battery of lens specifically includes: lens, is obliquely installed in described LCOS displayShow on image direction of transfer and do not block human eye horizontal line of sight, for collimating amplification from described LCOS displayDisplay image, and the display image through described lens is sent to human eye.
Wherein, described diopter regulation battery of lens specifically includes: quarter wave plate, is obliquely installed and shows in described LCOSOn the display image direction of transfer of device and do not block human eye horizontal line of sight, for adjusting from described LCOS displayThe polarization direction of display image；The lens of reflectance coating it are coated with, with described 1/4 ripple in the side away from described quarter wave plateSheet is close to arrange, and for collimating amplification and reflecting the display image from described LCOS display, thus display is schemedAs reflexing to human eye.
In a detailed description of the invention of the present utility model, described wear-type visual device also includes: offset lens, everyDescribed optical module to be oppositely arranged with viewing location, for compensating the dioptric effect that described lens produce, thus ensureThe extraneous real world images that human eye is watched is indeformable.
Wherein, described lens are liquid crystal lens, according to the myopia degree of beholder adjust described lens radius of curvature andThickness.
Wherein, described optical module also includes: the first corner cube prism；Be arranged in the transmission light path of described light sourceTwo corner cube prisms, are fully reflecting surface with the contact surface of described first corner cube prism, and described fully reflecting surface is used for reflecting describedThe light that light source sends；3rd corner cube prism, is close to arrange with described second corner cube prism；It is arranged on described LCOSThe 4th corner cube prism in the transmission light path of display, is the first polarization spectro with the contact surface of described 3rd corner cube prismFace, described first polarization light-dividing surface is for reflecting the S-polarization light that described light source sends；1/2 wave plate, with the described 4thCorner cube prism is close to arrange, and is converted into S-polarization light for the P polarization light sent by described LCOS display；TheFive corner cube prisms, are close to arrange with described 1/2 wave plate；Dove prism, with the contact surface of described 5th corner cube prism beSecond polarization light-dividing surface, described second polarization light-dividing surface is for sending institute to from the S-polarization light of described 1/2 wave plateState diopter regulation battery of lens.
Wherein, described first polarization light-dividing surface is identical with the angle of inclination of described diopter regulation battery of lens.
Wherein, described fully reflecting surface becomes 45 degree of angles with the transmission light path of described light source；Described first polarization light-dividing surface withDescribed fully reflecting surface is vertical.
Wherein, described first corner cube prism and described 3rd corner cube prism are wholely set.
According to above-mentioned detailed description of the invention of the present utility model, it is appreciated that wear-type visual device at least has and following hasBenefit effect or feature: utilize the face (be reflecting surface, be polarization light-dividing surface) of two angle vertical, by lightThe luminous reflectance that source sends is to LCOS display surface, thus realizes wear-type visual device and make LCOS displayWith, greatly reduce the overall volume of wear-type visual device；To be used for regulating dioptric battery of lens to be incorporated into simultaneouslyIn optical system, by regulating the diopter of battery of lens, so that wear-type visual device is applicable to the people of different visionGroup, improves user experience；It addition, by arranging offset lens, it is ensured that the extraneous real world images that beholder sees is notDeformation, enhances the practicality of wear-type visual device.
It is to be understood that above-mentioned general description and detailed description below be merely illustrative and illustrative, it is notThe scope that this utility model to be advocated can be limited.
Detailed description of the invention
For making the purpose of this utility model embodiment, technical scheme and advantage clearer, below will with accompanying drawing andNarration in detail clearly illustrates the spirit of this utility model disclosure, and any skilled artisan is understandingAfter the embodiment of this utility model content, when the technology that can be taught by this utility model content, it is changed and modifies,It is without departing from the spirit and scope of this utility model content.
Schematic description and description of the present utility model is used for explaining this utility model, but is not intended as this practicalityNovel restriction.It addition, the element/component of same or like label is used to used in drawings and the embodimentsRepresent same or like part.
About " first " used herein, " second " ... etc., censure order or the meaning of cis-position the most especiallyThink, be also not used to limit this utility model, its element described with constructed term only for difference or operation.
About direction used herein term, such as: upper and lower, left and right, front or rear etc., it is only with reference to attachedThe direction of figure.Therefore, the direction term of use is used to illustrate not for limiting this creation.
About " comprising " used herein, " including ", " having ", " containing " etc., it is openingThe term of property, i.e. mean including but not limited to.
About used herein " and/or ", including the arbitrary of described things or all combine.
About term used herein " substantially ", " about " etc., in order to modify any can be with the quantity of microvariationsOr error, but this slight variations or error can't change its essence.It is said that in general, micro-change that this type of term is modifiedChange or the scope of error can be 20% in some embodiments, can be 10% in some embodiments, implement in partExample can be 5% or other numerical value.It will be understood by those skilled in the art that the aforementioned numerical value mentioned can need according to realityAsk and adjust, be not limited thereto.
Some is in order to describe the word of the application by lower or discuss in the other places of this description, to provide art technologyPersonnel are about guiding extra in the description of the present application.
The knot of a kind of specific embodiment one wearing formula visual device that Fig. 1 provides for this utility model detailed description of the inventionComposition, as it is shown in figure 1, utilize two faces (be fully reflecting surface, for polarization light-dividing surface) of optical module,The luminous reflectance sent by light source is to LCOS display surface, thus realizes wear-type visual device to LCOS displayUse, greatly reduce the overall volume of wear-type visual device；Then utilize optical module by LCOS displayVirtual image through reflection and collimation processing and amplifying, eventually arrive at the eyes of beholder, by regulate lens dioptricDegree, can make wear-type visual device be applicable to the crowd of different vision.
In this specific embodiment shown in the drawings, described wear-type visual device includes LCOS display 10, light source20, optical module 30, wherein, LCOS display 10 is for reflective imaging；Light source 20 and described LCOSDisplay 10 is arranged side by side, and light source 20 is for providing the light needed for reflective imaging to described LCOS display 10Can, in specific embodiment of the utility model, described light source 20 can be LED or mercury lamp；Optical module30 be arranged in parallel with described LCOS display 10 and described light source 20, and optical module 30 is for by described light source 20Light reflex to the surface of described LCOS display 10, and the display image of described LCOS display 10 is passedDeliver to human eye.
See Fig. 1, LCOS display 10 and light source 20 to be arranged side by side, utilize two orthogonal planes (Individual for fully reflecting surface, one be polarization light-dividing surface) luminous reflectance that sent by light source 20 is to LCOS display 10, toolFor body, utilize luminous reflectance that light source 20 sends by fully reflecting surface to polarization light-dividing surface, the P of the light that light source 20 sendsPolarized light is gone out by polarization light-dividing surface direct projection, and the S-polarization light of the light that light source 20 sends is reflexed to by polarization light-dividing surfaceLCOS display 10, thus illuminate LCOS display 10, finally utilize optical module 30 by LCOS displayThe virtual image of 10 is sent to beholder's eyes.
Referring again to Fig. 1, described optical module 30 include first corner cube prism the 301, second corner cube prism 302,3rd corner cube prism the 303, the 4th corner cube prism 304,1/2 wave plate the 305, the 5th corner cube prism 306, Dove prism307, diopter regulation battery of lens 308, wherein, the second corner cube prism 302 is arranged on the transmission light of described light source 20Lu Shang, the second corner cube prism 302 is fully reflecting surface with the contact surface of described first corner cube prism 301, described total reflectionFace is for reflecting the light that described light source 20 sends；3rd corner cube prism 303 is close to described second corner cube prism 302Arrange；4th corner cube prism 304 is arranged in the transmission light path of described LCOS display 10, the 4th corner cube prism304 is the first polarization light-dividing surface with the contact surface of described 3rd corner cube prism 303, and described first polarization light-dividing surface is used forReflect the S-polarization light that described light source 20 sends；1/2 wave plate 305 and described 4th corner cube prism 304 are close to arrange,1/2 wave plate 305 is for being converted into S-polarization light by the P polarization light that described LCOS display 10 sends；5th is straightAngle prism 306 and described 1/2 wave plate 305 are close to arrange；Dove prism 307 and described 5th corner cube prism 306Contact surface is the second polarization light-dividing surface, and described second polarization light-dividing surface is for reflecting the S of described 1/2 wave plate 305 transmissionPolarized light；Diopter regulation battery of lens 308 is obliquely installed in the S-polarization light direction of described second polarization light-dividing surface reflectionAbove and not blocking human eye horizontal line of sight, diopter regulation battery of lens 308 is used for collimating described second polarization light-dividing surface of amplificationThe S-polarization light of reflection, and the S-polarization light of described second polarization light-dividing surface reflection is converted into P polarization light through instituteState the second polarization light-dividing surface and arrive human eye, in short, i.e. for collimating amplification from described LCOS display 10Display image.Diopter regulation battery of lens 308 is inclined on the 5th corner cube prism 306, and regards with user's levelStaggering in line direction, user's horizontal line of sight will not be produced impact, does not affect user by the 5th corner cube prism 306 and ladderExtraneous real world images normally watched by shape prism 307, thus improves user experience.
In a specific embodiment of the present utility model, described diopter regulation battery of lens 308 specifically includes quarter wave plate3081, lens 3082, wherein, quarter wave plate 3081 is arranged on the S-polarization light of described second polarization light-dividing surface reflectionOn direction, quarter wave plate 3081 is for adjusting the polarization direction of the S-polarization light of described second polarization light-dividing surface reflection, alsoIt is exactly that quarter wave plate 3081 is for adjusting the polarization direction of the display image from described LCOS display 10；Lens3082 are coated with reflectance coating, lens 3082 and described quarter wave plate 3081 in the side away from described quarter wave plate 3081Being close to arrange, lens 3082 amplify for collimating and reflect the light from described quarter wave plate 3081, thus by describedThe S-polarization light of the second polarization light-dividing surface reflection passes twice through after described quarter wave plate 3081 is converted into P polarization light, wearsCross described second polarization light-dividing surface and arrive human eye, in short, lens 3082 are used for collimating amplification and reflecting from describedThe display image of LCOS display 10, thus display image is reflexed to human eye.By bending of regulation lens 3082Luminosity, can allow the different vision user need not be additionally in the case of wearing spectacles, it is possible to use this utility model offerWear-type visual device, such as, when myopia user wears, lens 3082 have a negative diopter, and hypermetropia is usedWhen family is worn, lens 3082 have a positive diopter, and according to the myopia of user or hypermetropia program, adjust lensThe diopter of 3082, thus allow lens 3082 adapt to different user.In specific embodiment of the utility model, lens3082 can be liquid crystal lens, liquid crystal lens be rendered as under the control of voltage concavees lens or be rendered as convex lens orPerson is rendered as trapezoid lens, i.e. can according to the myopia degree of beholder adjust described lens 3082 radius of curvature andThickness, this utility model is not limited.
As shown in FIG., the fully reflecting surface between the second corner cube prism 302 and described first corner cube prism 301 is utilized to incite somebody to actionThe luminous reflectance that light source 20 sends passes through the 4th corner cube prism to polarization light-dividing surface, the P polarization light of the light that light source 20 sendsPolarization light-dividing surface direct projection between 304 and described 3rd corner cube prism 303 is gone out, and the S of the light that light source 20 sends is inclinedThe light that shakes is reflexed to LCOS by the polarization light-dividing surface between the 4th corner cube prism 304 and described 3rd corner cube prism 303Display 10, thus illuminate LCOS display 10；After S-polarization light is irradiated on LCOS display 10, LCOSThe virtual image that display 10 sends is P polarization light, and P polarization light is by, after 1/2 wave plate 305, again being changedBecoming the virtual image of S-polarization light, S-polarization light enters the 5th corner cube prism 306, then by the 5th corner cube prism 306And the second polarization light-dividing surface reflection between Dove prism 307, the S-polarization light after injection the 5th corner cube prism 306 entersEntering quarter wave plate 3081, quarter wave plate 3081 enters lens 3082, lens 3082 after changing the polarization direction of S-polarization lightIncident illumination carries out collimation amplify, owing to lens 3082 are coated with reflectance coating in the side away from described quarter wave plate 3081,Light after collimation amplifies is reflected by reflectance coating, and light is transformed into P polarization light after again passing by quarter wave plate 3081, P is inclinedAfter the light that shakes passes sequentially through the 5th corner cube prism the 306, second polarization light-dividing surface, Dove prism 307, enter beholder's eyeEyeball, finally utilizes optical module 30 that the virtual image of LCOS display 10 is sent to beholder's eyes.
Diopter regulation battery of lens 308 is obliquely installed, and staggers with the horizontal line of sight of user, when i.e. user faces front,Diopter regulation battery of lens 308 does not interferes with the sight line of user, i.e. user can directly pass through the 5th corner cube prism 306Watch extraneous real world images with Dove prism 307, thus facilitate user to watch extraneous real world images, improve user's bodyDegree of testing.
In specific embodiment of the utility model, described first polarization light-dividing surface regulates battery of lens 308 with described diopterAngle of inclination identical, the i.e. first polarization light-dividing surface is identical with the angle of inclination of described lens 3082, such as, firstPolarization light-dividing surface is parallel to each other with described lens 3082, and is 45 degree with the angle of horizontal plane.Fully reflecting surface and instituteThe transmission light path stating light source becomes 45 degree of angles；Described first polarization light-dividing surface is vertical with described fully reflecting surface, and this practicality is newType is not limited.Lens 3082 can be that liquid crystal lens, the radius of curvature of lens 3082 and thickness can be according to sightsThe myopia degree of the person of seeing sets, and the vision of beholder is different, such as myopia crowd or hypermetropia crowd, passes throughThe radius of curvature and thickness, myopia crowd or the hypermetropia crowd that adjust lens 3082 need not additionally add pair of eyeglasses,Thus improve the Experience Degree of user.
Referring again to Fig. 1, described wear-type visual device also includes offset lens 40, wherein, offset lens 40 withDescribed lens 3082 are close to arrange, i.e. offset lens 40 is oppositely arranged with viewing location across described optical module 30,Offset lens 40 and viewing location lay respectively at the both sides of optical module 30, and offset lens 40 and lens 3082Being positioned at optical module 30 homonymy, offset lens 40 is used for compensating the dioptric effect that described lens 3082 produce, thusIt is indeformable that warrantor observes the extraneous real world images seen.Owing to being coated with reflectance coating on lens 3082, reflectance coating anti-Penetrating rate size to be designed according to the transparency of required brightness and product, extraneous real world images can be entered through reflectance coatingEnter in the eyes of beholder, thus formed in beholder's eyes and amplify the virtual image, due to the effect of lens 3082, outwardBoundary's real world images, it may happen that deformation, in order to prevent extraneous real world images deformation, needs additionally to be further added by a compensationLens 40, offset lens 40 is mutually matched with lens 3082, is so entered in beholder's eyes by lens 3082Extraneous real world images would not deform.Specifically, extraneous real world images first passes through offset lens 40 and entersEnter lens 3082, owing to offset lens 40 and lens 3082 are mutually matched (i.e. offset lens 40 and described lens 3082Curvature Matching), extraneous real world images will not deform upon, and then passes through quarter wave plate 3081 and enters the 5th right-angled edgeMirror 306, due to the existence of the second polarization light-dividing surface, P polarization light transmission second polarization light-dividing surface of extraneous real world images,Dove prism 307, eventually enters in beholder's eyes, and therefore, beholder is both it can be seen that extraneous real world images, againIt can be seen that the virtual image that LCOS display 10 produces, enhance practicality of the present utility model.This practicality is newIn the specific embodiment of type, it is also possible to a quarter wave plate is set between offset lens 40 and lens 3082 again, thisSample one, extraneous real world images will not be lost, substantially through twice quarter wave plate, the P polarization light of extraneous real world imagesCompletely through the second polarization light-dividing surface, thus can ensure that beholder sees extraneous real world images clearly, carry furtherHigh user experience.
The knot of a kind of specific embodiment two wearing formula visual device that Fig. 2 provides for this utility model detailed description of the inventionComposition, is as in figure 2 it is shown, different from Fig. 1, the position of beholder and lens 3082 homonymy, repays lens 40It is positioned at not homonymy with lens 3082, is arranged such and at least can save a quarter wave plate, simultaneously also without thoroughlyMirror 3082 plates one layer of reflectance coating, reduces process complexity.
In this detailed description of the invention shown in the drawings, described optical module includes first corner cube prism the 301, second right anglePrism the 302, the 3rd corner cube prism the 303, the 4th corner cube prism 304,1/2 wave plate the 305, the 5th corner cube prism 306,Dove prism 307 and diopter regulation battery of lens 308, wherein, the second corner cube prism 302 is arranged on described light source 20Transmission light path on, the second corner cube prism 302 is fully reflecting surface with the contact surface of described first corner cube prism 301, instituteState fully reflecting surface for reflecting the light that described light source 20 sends；3rd corner cube prism 303 and described second corner cube prism302 are close to arrange；4th corner cube prism 304 is arranged in the transmission light path of described LCOS display 10, and the 4thCorner cube prism 304 is the first polarization light-dividing surface with the contact surface of described 3rd corner cube prism 303, described first polarization pointBright finish is for reflecting the S-polarization light that described light source 20 sends；1/2 wave plate 305 and described 4th corner cube prism 304Being close to arrange, 1/2 wave plate 305 is for being converted into S-polarization by the P polarization light that described LCOS display 10 sendsLight；5th corner cube prism 306 and described 1/2 wave plate 305 are close to arrange；Dove prism 307 and described 5th right angleThe contact surface of prism 306 is the second polarization light-dividing surface, and described second polarization light-dividing surface is used for reflecting described 1/2 wave plate 305The S-polarization light of transmission；Diopter regulation battery of lens 308 is obliquely installed in the display figure of described LCOS display 10As on direction of transfer and not blocking human eye horizontal line of sight, diopter regulation battery of lens 308 is used for collimating amplification from describedThe display image of LCOS display 10, i.e. diopter regulation battery of lens 308 are used for collimating described second polarization of amplificationThe S-polarization light of light splitting surface reflection, and human eye will be transported to through the S-polarization light of described lens 3082.
In specific embodiment of the utility model, diopter regulation battery of lens 308 includes lens 3082, wherein, thoroughlyMirror 3082 is obliquely installed on the S-polarization light direction of described second polarization light-dividing surface reflection and does not block human eye level and regardsLine, lens 3082 amplify the S-polarization light of described second polarization light-dividing surface reflection for collimating, and will be through describedThe S-polarization light of mirror 3082 is transported to human eye, amplifies from described LCOS in short, lens 3082 are used for collimatingThe display image of display 10, and human eye will be sent to through the display image of described lens 3082.Lens 3082It is inclined on the 5th corner cube prism 306, and staggers with user's horizontal line of sight direction, will not be to user's horizontal line of sightProduce impact, do not affect user and normally watch extraneous real world images by the 5th corner cube prism 306 and Dove prism 307,Thus improve user experience.
It addition, by the diopter regulating lens 3082, can allow the different vision user need not extra wearing spectaclesIn the case of, it is possible to use the wear-type visual device that this utility model provides, such as, when myopia user wears,Lens 3082 have negative diopter, and when hypermetropia user wears, lens 3082 have a positive diopter, and according toThe myopia at family or hypermetropia program, adjust the diopter of lens 3082, thus allow lens 3082 adapt to different user.In specific embodiment of the utility model, lens 3082 can be liquid crystal lens, and liquid crystal lens is under the control of voltageBeing rendered as concavees lens or be rendered as convex lens or be rendered as trapezoid lens, this utility model is not limited.
As in figure 2 it is shown, utilize the fully reflecting surface between the second corner cube prism 302 and described first corner cube prism 301 to incite somebody to actionThe luminous reflectance that light source 20 sends passes through the 4th corner cube prism to polarization light-dividing surface, the P polarization light of the light that light source 20 sendsPolarization light-dividing surface direct projection between 304 and described 3rd corner cube prism 303 is gone out, and the S of the light that light source 20 sends is inclinedThe light that shakes is reflexed to LCOS by the polarization light-dividing surface between the 4th corner cube prism 304 and described 3rd corner cube prism 303Display 10, thus illuminate LCOS display 10；After S-polarization light is irradiated on LCOS display 10, LCOSThe virtual image that display 10 sends is P polarization light, and P polarization light is by, after 1/2 wave plate 305, again being changedBecoming the virtual image of S-polarization light, S-polarization light enters the 5th corner cube prism 306, then by the 5th corner cube prism 306And the second polarization light-dividing surface reflection between Dove prism 307, the S-polarization light after injection the 5th corner cube prism 306 entersEntering lens 3082, lens 3082 carry out collimation and are amplified into beholder's eyes incident illumination, i.e. utilize optical moduleThe virtual image of LCOS display 10 is sent to beholder's eyes by 30.
Seeing Fig. 2, described wear-type visual device also includes offset lens 40, offset lens 40 and described trapezoidal ribMirror 307 is close to arrange, i.e. offset lens 40 and viewing location lays respectively at optical module 30 both sides, and offset lens40 are positioned at optical module 30 both sides with lens 3082, and offset lens 40 is existing for warrantor observes the external world seenReal image is indeformable.Extraneous real world images can pass through the 5th corner cube prism 306, Dove prism 307 and lens successivelyEnter after 3082 in the eyes of beholder, thus formed in beholder's eyes and amplify the virtual image, due to lens 3082Effect, extraneous real world images, it may happen that deformation, in order to prevent extraneous real world images deformation, needs additionally to be further added byOne offset lens 40, offset lens 40 and lens 3082 are mutually matched (i.e. offset lens 40 and described lens 3082Curvature Matching), the extraneous real world images so entered in beholder's eyes would not deform.Specifically,Extraneous real world images first passes through offset lens 40 and sequentially enters the 5th corner cube prism 306, Dove prism 307 and thoroughlyMirror 3082 eventually enters into beholder's eyes, owing to offset lens 40 is mutually matched with lens 3082, and extraneous reality figureAs deforming upon, due to the existence of the second polarization light-dividing surface, the P polarization light transmission second of extraneous real world images is inclinedShake light splitting surface, the 5th corner cube prism 306, lens 3082, eventually enters in beholder's eyes, and therefore, beholder was bothIt can be seen that extraneous real world images, again it can be seen that the virtual image of LCOS display 10 generation, enhance this realityBy novel practicality.
In specific embodiment of the utility model, described fully reflecting surface is identical with the angle of inclination of described lens 3082,Such as, fully reflecting surface is parallel to each other with described lens 3082, and is 45 degree with the angle of horizontal plane.Fully reflecting surface45 degree of angles are become with the transmission light path of described light source；Described first polarization light-dividing surface is vertical with described fully reflecting surface, this realityIt is not limited with novel.Lens 3082 can be that liquid crystal lens, the radius of curvature of lens 3082 and thickness can rootsSetting according to the myopia degree of beholder, the vision of beholder is different, such as myopia crowd or hypermetropia crowd,A width need not be additionally added by the radius of curvature and thickness, myopia crowd or hypermetropia crowd adjusting lens 3082Glasses, thus improve the Experience Degree of user.
The knot of a kind of specific embodiment three wearing formula visual device that Fig. 3 provides for this utility model detailed description of the inventionComposition；The knot of a kind of specific embodiment four wearing formula visual device that Fig. 4 provides for this utility model detailed description of the inventionComposition, as shown in Figure 3 and Figure 4, the different of Fig. 3 and Fig. 4 and Fig. 1 and Fig. 2 are, described first right-angled edgeMirror and described 3rd corner cube prism are wholely set, i.e. corner cube prism before LCOS display and light source is converted into three,Simplify gluing technique, reduce the production cost wearing formula visual device.
This utility model provides a kind of wear-type visual device, utilize two angle vertical face (one be reflecting surface,One is polarization light-dividing surface), the luminous reflectance that light source is sent to LCOS display surface, thus realize wear-type canDepending on the equipment use to LCOS display, greatly reduce the overall volume of wear-type visual device；To be used for simultaneouslyThe regulation dioptric lens of beholder are incorporated in optical system, by regulating the diopter of lens, so that wear-typeVisual device is applicable to the crowd of different vision, and user additionally just need not can use this utility model to provide by wearing spectaclesWear-type visual device, simple and convenient, improve user experience.
The foregoing is only the schematic detailed description of the invention of this utility model, without departing from design of the present utility model andOn the premise of principle, equivalent variations that any those skilled in the art is made and amendment, this practicality all should be belonged to newThe scope of type protection.