CN208818938U - AR Optical devices and wearable AR equipment - Google Patents
AR Optical devices and wearable AR equipment Download PDFInfo
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- CN208818938U CN208818938U CN201821480561.6U CN201821480561U CN208818938U CN 208818938 U CN208818938 U CN 208818938U CN 201821480561 U CN201821480561 U CN 201821480561U CN 208818938 U CN208818938 U CN 208818938U
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Abstract
The utility model provides a kind of AR Optical devices and AR display device, belongs to augmented reality technical field of imaging.The AR Optical devices include band logical polarization spectroscope and reflecting mirror, the image light projected from image source is divided into the polarised light of first direction and the polarised light of second direction after band logical polarization spectroscope, wherein, the exit direction of the polarised light of first direction is far from image source, the polarised light directive reflecting mirror of second direction, then the directive band logical polarization spectroscope after reflecting mirror reflects, and band logical polarization spectroscope is transmitted, last directive human eye.Band logical polarization beam splitter carries out polarization spectro to the light within the scope of wavelength pass band, and the light outside wavelength pass band range can be penetrated all, it can be while not reducing energy of light source utilization efficiency, improve the light transmittance that wearer observes the world, the external visibility of wearer's eyes is improved simultaneously, and then improves sociability.
Description
Technical field
The utility model relates to augmented reality technical field of imaging, in particular to a kind of AR Optical devices and wearing
Formula AR equipment.
Background technique
AR (Augmented Reality, augmented reality) is also referred to as mixed reality, principle be by computer technology,
By virtual Information application to real world, true environment and virtual object have been added to the same picture or sky in real time
Between exist simultaneously.
Currently, people can be interacted by wearable device, such as AR glasses or the AR helmet with real world.Such as
Fig. 1 shows the structural schematic diagram of the AR Optical devices in existing AR glasses or the AR helmet, as shown in Figure 1, existing AR light
Learning device optical system includes image source 11, spectroscope 3, curved surface half-reflecting mirror 4 and the lens 12 above spectroscope 3, image source
11 are arranged in the top of optical system, and have certain distance between image source 11 and lens 12, and the image light of image source 11 is from top
Lens 12 are injected downwards.At the same time, ambient light is injected from the right side of curved surface half-reflecting mirror 4 (human eye direction) to the left, is done
It disturbs light also while being injected upwards from spectroscopical lower section.The some light of image light is bent by the reflection directive of spectroscope 3
Face half-reflecting mirror 4, some light using curved surface half-reflecting mirror 4 reflection directive spectroscope 3.The some light of ambient light according to
It is secondary to pass through curved surface half-reflecting mirror 4 and the arrival human eye of spectroscope 3；The some light of interference light is arrived at by the reflection of spectroscope 3
Human eye.Parts of images light, component environment light and part interference light finally arrive at human eye simultaneously, allow users to see
It can also be seen that the image for the image source 11 being superimposed upon in true environment while extraneous true environment.
Existing AR Optical devices have the following deficiencies: some light of image light by spectroscope 3, and a part of light is
Reflected light, a part of light are transmitted light, and by the reflected light directive curved surface half-reflecting mirror 4 of spectroscope 3, some light is using song
The reflection directive spectroscope 3 of face half-reflecting mirror 4, the light of image source 11 cause a large amount of light to lose after reflection and transmission, when
When wearer is through device observation ambient enviroment, the light transmission rate of image source light is lower, and the efficiency of light energy utilization is lower, meanwhile, by
In a large amount of jamming light source, outside can not see the eyes of wearer, cause sociability bad.
Utility model content
For above-mentioned problems of the prior art, the utility model provides a kind of AR Optical devices and wearable AR
Light transmittance can be improved using the band logical polarization spectroscope with band logical polarization beam splitter in equipment.
In a first aspect, the utility model embodiment provides a kind of AR Optical devices, including band logical polarization spectroscope and anti-
Penetrate mirror；
Described image grenade instrumentation includes image source；
The image light that the image source projects is divided into the polarised light and the of first direction by the band logical polarization spectroscope
The polarised light in two directions；The exit direction of the polarised light of the first direction is far from the image source；The polarization of the second direction
Light emission is to the reflecting mirror, the band logical polarization spectroscope described in directive after reflecting mirror reflection, and transmits the band logical polarization
Spectroscope.With reference to first aspect, the utility model embodiment provides the first possible embodiment of first aspect,
In, the band logical polarization spectroscope includes spectroscope substrate and band logical polarization beam splitter interconnected.
With reference to first aspect, the utility model embodiment provides the first possible embodiment of first aspect,
In, the band logical polarization spectroscope includes spectroscope substrate and band logical polarization beam splitter interconnected.
With reference to first aspect, the utility model embodiment provides second of possible embodiment of first aspect,
In, there is adhesive layer between the spectroscope substrate and the band logical polarization beam splitter.
The possible embodiment of with reference to first aspect the first, the utility model embodiment provide the of first aspect
Three kinds of possible embodiments, wherein the band logical polarization beam splitter is by least one set of first refractive index material and the second folding
Penetrate the multi-layer film structure that the superposition of rate material is constituted.
The third possible embodiment with reference to first aspect, the utility model embodiment provide the of first aspect
Four kinds of possible embodiments, wherein the refractive index of the first refractive index material is greater than the folding of second refraction materials
Penetrate rate；Second refraction materials are than the first refractive index material closer to described image grenade instrumentation.
The possible embodiment of with reference to first aspect the first, the utility model embodiment provide the of first aspect
Five kinds of possible embodiments, wherein the band logical polarization spectroscope further includes light polarizing film；The light polarizing film is located at the light splitting
The outside of mirror substrate, perhaps positioned at the outside of the band logical polarization beam splitter or positioned at the spectroscope substrate and the band
Between logical polarization beam splitter；
The light polarizing film is used for the polarised light by polarization state for first direction, absorbs the polarization that polarization state is second direction
Light.
With reference to first aspect, the 5th kind of possible reality of the possible embodiment of the first of first aspect or first aspect
Mode is applied, the utility model embodiment provides the 6th kind of possible embodiment of first aspect, wherein the AR optics dress
Setting further includes wave plate component；The band logical polarization spectroscope is arranged successively with the wave plate component and the reflecting mirror.
The 6th kind of possible embodiment with reference to first aspect, the utility model embodiment provide the of first aspect
Seven kinds of possible embodiments, wherein the wave plate component is quarter wave plate.
With reference to first aspect, the utility model embodiment provides the 8th kind of possible embodiment of first aspect,
In, the reflecting mirror is curved reflector.
The 8th kind of possible embodiment with reference to first aspect, the utility model embodiment provide the of first aspect
Nine kinds of possible embodiments, wherein the curved reflector includes curved mirror substrate and band logical reflectance coating interconnected.
The 9th kind of possible embodiment with reference to first aspect, the utility model embodiment provide the of first aspect
Ten kinds of possible embodiments, wherein the band logical reflectance coating includes at least third reflect rate material and fourth refractive index material.
The 9th kind of possible embodiment with reference to first aspect, the utility model embodiment provide the of first aspect
Ten a kind of possible embodiments, wherein the curved reflector further includes anti-reflection film.
Second aspect, the utility model embodiment additionally provide a kind of wearable AR equipment, including clamping piece and above-mentioned
AR Optical devices.
The utility model embodiment bring it is following the utility model has the advantages that
AR Optical devices provided by the embodiment of the utility model and wearable AR equipment, the AR Optical devices include that band logical is inclined
Shake spectroscope and reflecting mirror, and the image light projected from image source is divided into the polarised light of first direction after band logical polarization spectroscope
With the polarised light of second direction, wherein the exit direction of the polarised light of first direction is far from image source, the polarization light emission of second direction
To reflecting mirror, the then directive band logical polarization spectroscope after reflecting mirror reflects, and band logical polarization spectroscope is transmitted, last directive people
Eye.Meanwhile realizing that band logical polarization beam splitter carries out polarization spectro to the light within the scope of wavelength pass band, and outside wavelength pass band range
Light can improve wearer while not reducing energy of light source utilization efficiency all through band logical polarization beam splitter
The light transmittance in the world is observed, while improving the external visibility of wearer's eyes, and then improves sociability.
Other feature and advantage of the utility model will illustrate in the following description, also, partly from specification
In become apparent, or understood and implementing the utility model.The purpose of this utility model and other advantages are illustrating
Specifically noted structure is achieved and obtained in book, claims and attached drawing.
To enable the above objects, features, and advantages of the utility model to be clearer and more comprehensible, preferred embodiment is cited below particularly, and
Cooperate appended attached drawing, is described in detail below.
Detailed description of the invention
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of structural schematic diagram of AR Optical devices of the prior art；
Fig. 2 is the structural schematic diagram of AR Optical devices provided by an embodiment of the present invention；
Fig. 3~7 are the structural schematic diagram of band logical polarization spectroscope provided by an embodiment of the present invention；
Fig. 8~13 are the structural schematic diagram of curved reflector provided by an embodiment of the present invention；
Figure 14~16 are the waveform diagram of band logical polarization spectro membrane property provided by an embodiment of the present invention；
Figure 17 is the waveform diagram that band logical provided by an embodiment of the present invention reflects membrane property；
Figure 18 is the spectral power distribution figure of narrow-band light source provided by an embodiment of the present invention or image source.
Icon: 1- image projection apparatus；11- image source；12- lens；3- spectroscope；4- curved surface half-reflecting mirror；5- band logical is inclined
Shake spectroscope；51- spectroscope substrate；52- band logical polarization beam splitter；53- light polarizing film；6- wave plate component；7- curved reflector；
71- anti-reflection film；72- curved mirror substrate；73- band logical reflectance coating.
Specific embodiment
To keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, below in conjunction with attached drawing to this
The technical solution of utility model is clearly and completely described, it is clear that described embodiment is that the utility model a part is real
Example is applied, instead of all the embodiments.The component of the utility model embodiment being usually described and illustrated herein in the accompanying drawings can
To arrange and design with a variety of different configurations.Therefore, below to the embodiments of the present invention provided in the accompanying drawings
Detailed description is not intended to limit the range of claimed invention, but is merely representative of the selected reality of the utility model
Apply example.Based on the embodiments of the present invention, those of ordinary skill in the art institute without making creative work
The every other embodiment obtained, fall within the protection scope of the utility model.
For existing AR Optical devices the efficiency of light energy utilization it is lower the problems such as, the utility model embodiment provides one kind
AR Optical devices and wearable AR equipment, below first describe to the AR Optical devices of the utility model in detail.
Embodiment one
Present embodiments provide a kind of AR Optical devices, as shown in Fig. 2, the AR Optical devices include image projection apparatus 1,
Band logical polarization spectroscope 5, wave plate component 6 and reflecting mirror.Wherein, image projection apparatus 1 includes image source 11, is projected from image source 11
Image light divides the polarised light of polarised light and second direction for first direction by band logical polarization spectroscope 5, first direction
The exit direction of polarised light is far from image source 11, the polarised light directive reflecting mirror of second direction, the directive band logical after reflecting mirror reflects
Polarization spectroscope 5, and transmit band logical polarization spectroscope 5.In the present embodiment, the polarised light of first direction can be P-polarized light,
The polarised light of second direction can be S polarized light.
In an optional embodiment, band logical polarization spectroscope 5 may include spectroscope substrate 51 and band interconnected
Logical polarization beam splitter 52.A kind of connection type are as follows: electrostatic can be passed through between spectroscope substrate 51 and band logical polarization beam splitter 52
It fits together；Another connection type are as follows: adhesive layer can be passed through between spectroscope substrate 51 and band logical polarization beam splitter 52
It pastes, the material of adhesive layer can be AB glue water, UV glue or optics pressure sensitive adhesive；There are also a kind of connection types are as follows: spectroscope substrate
51 and band logical polarization beam splitter 52 fit together by hot pressing.Above-mentioned connection type be also applied for following other films and film it
Between or the connection between film and substrate.The positional relationship of spectroscope substrate 51 and band logical polarization beam splitter 52 can be such as Fig. 3 institute
Show, band logical polarization beam splitter 52 is located at the side for closing on image projection apparatus 1, and spectroscope substrate 51 is located remotely from image projection dress
Set 1 side；It can also be with as shown in figure 4, spectroscope substrate 51 is positioned at the side for closing on image projection apparatus 1, band logical polarization divides
Light film 52 is located remotely from the side of image projection apparatus 1.
Specifically, band logical polarization beam splitter 52 can carry out the light in certain several particular range of wavelengths (wavelength pass band) inclined
Vibration light splitting, and for wavelength pass band outside light all penetrate；Since energy of the light at different wavelength that image source issues is
Different, it is concentrated mainly near optics three primary colors (i.e. red, green, blue), and the sum of passband width of main energetic distribution is usually
The sum of wave-length coverage outside less than passband, therefore band logical polarization beam splitter is used, it can be utilized not reducing energy of light source substantially
While efficiency, the light transmittance of eye-observation real world is improved, improves the external visibility of wearer's eyes to improve society
The property handed over.As shown in Figure 14 to Figure 16, in the case where capacity usage ratio is basically unchanged, the light transmission rate of band logical polarization beam splitter can
To reach 80% or higher.
Band logical polarization beam splitter 52 is made of at least one set of first refractive index material and the superposition of the second refraction materials
Multi-layer film structure, the second refraction materials are than first refractive index material closer to image projection apparatus 1.Wherein, first refractive index
The refractive index of material is greater than the refractive index of the second refraction materials.The thickness of band logical polarization beam splitter 52 can be between 1.6um-
Between 300um, for example, between 10um-100um.
The basic functional principle of band logical polarization beam splitter 52 is as follows: when available light with Brewster's angle from low-refraction material
When material is incident to high-index material, reflected light is s polarised light, and projection light is the mixed light of s polarised light and p-polarization light, wherein p
Polarized light component accounts for major part.Therefore, multilayer film knot is formed by the way that high refractive index and low-index material are interlaminated arrangement
Structure, when enabling light with the brewster angle incidence of respective indices of refraction to the multi-layer film structure, reflection light only has s polarised light,
And throw light is also close to only p-polarization light.The number of plies of band logical polarization beam splitter 52 is more, p-polarization light in throw light
Ratio is higher.Since Brewster's angle is related to refractive index, and refractive index is related to wavelength, therefore, passes through three kinds of multilayer films
The filter coating of band logical may be implemented in the superposition of structure.
The multi-layer film structure of band logical polarization beam splitter 52 can use accomplished in many ways, one of method are as follows: be logical
Cross the mode of vapor deposition by material being attached in substrate in layer, realize the multilayer film knot of high low-index material alternative stacked
Structure, the incidence angle bandwidth and wavelength selection of this mode are difficult to control simultaneously, only can be suitably used for the application of certain occasions, but this
Mode is preferable to the tolerance degree of energy.Another way are as follows: stretch to form high low-refraction material using high-molecular organic material
Material not only can control the refractive index of film layer by stretching, additionally it is possible to so that refraction of the same film layer in two draw directions of xy
Rate is different, and organic polymer film is easier to realize high film layer quantity relative to plated film mode, can be improved incidence angle band
Wide and wavelength selection flexibility, can also improve the purity of polarised light, so that multi-layer film structure has preferably in performance
Performance, but due to being high-molecular organic material, then it is less applicable in the occasion of the light incidence of high-energy density.Optionally, band
Logical polarization spectroscope 5 can also include light polarizing film 53, and light polarizing film is located at the outside of spectroscope substrate 51, or is located at band logical and polarizes
The outside of spectro-film 52, or between spectroscope substrate 51 and band logical polarization beam splitter 52.For example, light polarizing film 53, light splitting
Positional relationship between mirror substrate 51 and band logical polarization beam splitter 52 can be as shown in figure 5, band logical polarization beam splitter 52 be located at
The side of image projection apparatus 1 is closed on, light polarizing film 53 is located remotely from the side of image projection apparatus 1, and spectroscope substrate 51 is located at
Between light polarizing film 53 and band logical polarization beam splitter 52；It can be as shown in fig. 6, band logical polarization beam splitter 52, which is located at, closes on image throwing
The side of injection device 1, spectroscope substrate 51 are located remotely from the side of image projection apparatus 1, and light polarizing film 53 is located at spectroscope substrate
Between 51 and band logical polarization beam splitter 52；Or it can be as shown in fig. 7, spectroscope substrate 51, which is located at, closes on image projection apparatus 1
Side, light polarizing film 53 is located remotely from the side of image projection apparatus 1, and band logical polarization beam splitter 52 is located at light polarizing film 53 and light splitting
Between mirror substrate 51.Wherein, light polarizing film 53 is used for the polarised light by polarization state for first direction, and absorption polarization state is second party
To polarised light.
Band logical polarization beam splitter 52 can also be fitted on spectroscope substrate 51 using the technique of plated film, the technique side of plated film
Method includes vacuum sputtering, ion assisted deposition, thermal evaporation, resistance heating evaporation or electron beam evaporation etc..
Wave plate component 6 can use quarter wave plate, can successively arrange band logical polarization spectroscope 5 and wave plate component 6 and reflecting mirror
Column.Specifically, quarter wave plate is used to incident s polarised light being changed into circularly polarized light.Quarter wave plate can be planar structure or curved surface
Structure；Quarter wave plate can also be cylindrical structure；Quarter wave plate can also be spherical surface or non-spherical structure.Quarter wave plate can be set in band
Between logical polarization spectroscope 5 and reflecting mirror, as shown in Figure 2.Quarter wave plate can also fit in the inside of reflecting mirror, that is, close on band
The side of logical polarization spectroscope 5.
Reflecting mirror can use curved reflector 7, and curved reflector 7 includes curved mirror substrate 72 interconnected and band logical
Reflectance coating 73.The positional relationship of curved mirror substrate 72 and band logical reflectance coating 73 can with as shown in figure 8, curved mirror substrate 72 be located at face
The side of nearly wave plate component 6, band logical reflectance coating 73 are located remotely from the side of wave plate component 6；It can also be as shown in figure 9, band logical be anti-
It penetrates film 73 and is located at the side for closing on wave plate component 6, curved mirror substrate 72 is located remotely from the side of wave plate component 6.
Specifically, band logical reflectance coating 73 includes at least third reflect rate material and fourth refractive index material, third reflect rate
The refractive index of material is greater than the refractive index of fourth refractive index material, and fourth refractive index material is more leaned on than third reflect rate material
Nearly band logical polarization spectroscope 5.Optionally, third reflect rate material and fourth refractive index storeroom are every setting.Band logical reflectance coating is
Film plating layer.Its technology mode can be vacuum sputtering, ion assisted deposition, thermal evaporation, resistance heating evaporation or electron beam evaporation etc..
Band logical reflectance coating 73 is corresponding with above-mentioned band logical polarization beam splitter 52, to the wavelength pass band of band logical polarization beam splitter 52
Interior light total reflection or most of reflection, and for passband outside light all transmit.The same of optical energy utilization efficiency can improved
When, the light transmittance of eye-observation real world is improved, improves the external visibility of wearer's eyes to improve sociability, simultaneously
The light emission external environment that reduction even is eliminated image source is observed by other people, improves privacy.As shown in figure 17, band logical reflectance coating
73 light transmission rate can achieve 70% or higher, and the capacity usage ratio of image source is made to can be improved one times.
Optionally, curved reflector 7 further includes that anti-reflection film 71, anti-reflection film 71 and curved mirror substrate 72 and/or band logical reflect
Film 73 fits closely.Positional relationship between anti-reflection film 71, curved mirror substrate 72 and band logical reflectance coating 73 can be such as Figure 10 institute
Show, band logical reflectance coating 73 is located at the side for closing on wave plate component 6, and anti-reflection film 71 is located remotely from the side of wave plate component 6, curved mirror
Substrate 72 is between band logical reflectance coating 73 and anti-reflection film 71；Can also as shown in figure 11, anti-reflection film 71, which is located at, closes on wave plate group
The side of part 6, band logical reflectance coating 73 are located remotely from the side of wave plate component 6, and curved mirror substrate 72 is located at anti-reflection film 71 and band logical
Between reflectance coating 73；Or be shown in Fig.12, curved mirror substrate 72 is located at the side for closing on wave plate component 6, band logical reflection
Film 73 is located remotely from the side of wave plate component 6, and anti-reflection film 71 is between curved mirror substrate 72 and band logical reflectance coating 73；Or it can
With as shown in figure 13, anti-reflection film 71 is located at the side for closing on wave plate component 6, and curved mirror substrate 72 is located remotely from wave plate component 6
Side, band logical reflectance coating 73 is between anti-reflection film 71 and curved mirror substrate 72.
Image projection apparatus 1 includes image source 11.The effect of image source 11 is to show the image for needing to project in human eye, image source
11 can use plane image source, the including but not limited to image source of integrated optical source or single image source.For example, OLED (Organic
Light-Emitting Diode, Organic Light Emitting Diode), LCOS (Liquid Crystal On Silicon, silicon substrate liquid
It is brilliant), LCD (Liquid Crystal Display, liquid crystal display), MEMS (Microelectromechanical
Systems, micro electronmechanical display system), the display such as DMD (Digital Micro-mirror Device, digital micromirror elements) it is former
The electronic device of reason.Wherein, OLED and LCD is the image source of integrated optical source；LCOS, MEMS and DMD are single image source, when using single
When one image source, it can in addition increase the light source of auxiliary.
Optionally, in order to improve the efficiency of light energy utilization, it is further reduced leaking to improve privacy for image source light.If
For image source 11 using the image source of integrated optical source, which can be narrowband image source.If image projection apparatus 1 includes the light of auxiliary
Source, the light source can be narrow-band light source.Figure 18 shows the spectral power distribution figure of narrow-band light source or narrowband image source, such as Figure 18 institute
Show, three primary colors (i.e. red, green, blue) energy of narrow-band light source or narrowband image source is more concentrated, therefore the utilization of energy can be improved
Rate, while being also further reduced the leaking to improving privacy of image source light.Meanwhile if band logical polarization spectro is shortened in cooperation
Film and band logical band-pass of reflective coating width can be further improved transmitance, improve sociability.
In an optional embodiment, image projection apparatus 1 can also include lens 12, and lens 12 are located at image source 11 and band
Between logical polarization spectroscope 5, wherein outer seal structure is provided between lens 12 and image source 11, for example, closed frame, makes
Closed cavity is formed between lens 12 and image source 11, and matching mirror material is prevented to be lost.Lens 12 can be a lens or more
The lens group of a lens composition.Every face lens can be convex lens, concavees lens or convex lens and concavees lens in lens or lens group
Any combination etc., the face type of lens can be spherical surface, aspherical, free form surface etc., and lens 12 are by light refraction, matching polarized light
Road component is completed to be imaged jointly.
The working principle of AR Optical devices provided by the embodiment of the utility model is as follows: being emitted from image projection apparatus 1
Image light projects on band logical polarization spectroscope 5, the light in certain several wavelength pass band of 52 pairs of band logical polarization beam splitter settings
Line carries out polarization spectro, and s polarised light therein passes through wave plate component 6, is changed into circularly polarized light, is then incident on curved reflector
7, the light in the above-mentioned wavelength pass band of band logical reflectance coating 73 is totally reflected, and the circularly polarized light after reflection passes through wave plate component 6, is turned
Become p-polarization light and be again incident on band logical polarization spectroscope 5, p-polarization light can pass through band logical polarization spectroscope 5 and enter human eye
In, enable users to the virtual image for seeing big visible angle.
In conclusion AR Optical devices provided in this embodiment, have the advantages that
First, since there is band logical polarization beam splitter high refractive index and low-index material to be alternately arranged the multilayer film to be formed
Structure, when enabling light with the brewster angle incidence of respective indices of refraction to the multi-layer film structure, reflection light is pure s polarization
Light, and throw light improves image light brightness also close to pure p-polarization light, can be improved the light transmission in the eye-observation world
1.5 times of rate is higher, and the light transmittance for improving wearer through traditional AR Optical devices observation ambient enviroment is lower (general
25% or so) the problem of；
Second, since curved reflector is equipped with band logical reflectance coating, can be leaked substantially with the light of completely obscured image source, it is thorough
Bottom improves privacy；
Third, the narrow-band light source that light source uses energy more to concentrate, concentrates energy of light source more, reduces energy of light source
Waste, promote the capacity usage ratio of image light, capacity usage ratio can be improved 1 times or more；Improve existing AR optics
The problem of device optical energy utilization efficiency lower (about 12%-25% or so)；
4th, the visibility of the eyes of wearer improves 1.5 times or more, improves sociability.
Embodiment two
The utility model embodiment additionally provides a kind of wearable AR equipment, including clamping piece and above-described embodiment one or real
Apply AR Optical devices documented by example two.
The wearable AR equipment can be but not limited to AR glasses, the AR helmet or AR mask.When wearable AR equipment is AR
When glasses, clamping piece is frame, and AR Optical devices are mounted on frame, is equivalent to the position of two eyeglasses.When wearable AR is set
When for being the AR helmet, clamping piece can be headpiece case, and AR Optical devices are installed on the face-port portion on front side of headpiece case.
The wearable AR equipment of the present embodiment is provided with above-mentioned AR Optical devices, and AR Optical devices are using polarization optical path group
Part, polarization optical path component includes that the band logical polarization spectroscope, wave plate component and reflecting mirror, image projection apparatus being arranged successively are located at
Above or below band logical polarization spectroscope.Band logical polarization spectroscope is equipped with band logical polarization beam splitter, and reflecting mirror is equipped with band
Logical reflectance coating.
Wearable AR equipment provided in this embodiment has the advantages that and improves image light brightness, can be improved human eye
Observe the light transmittance in the world；Substantially it can be leaked with the light of completely obscured image source, thoroughly improve privacy；Light source using energy compared with
It for the narrow-band light source of concentration, concentrates energy of light source more, reduces the waste of energy of light source, promote the energy benefit of image light
With rate；The visibility of the eyes of wearer improves, and improves sociability.
AR Optical devices provided by the embodiment of the utility model and wearable AR equipment technical characteristic having the same, so
Also it can solve identical technical problem, reach identical technical effect.
It should be noted that in the description of the utility model embodiment unless specifically defined or limited otherwise, term
" installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be fixedly connected, may be a detachable connection or one
Connect to body；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, it can also be indirect by intermediary
It is connected, can be the connection inside two elements.For the ordinary skill in the art, on being understood with concrete condition
State the concrete meaning of term in the present invention.
It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term " the
One ", " second ", " third " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
Finally, it should be noted that embodiment described above, only specific embodiment of the present utility model, to illustrate this
The technical solution of utility model, rather than its limitations, the protection scope of the utility model is not limited thereto, although referring to aforementioned
The utility model is described in detail in embodiment, those skilled in the art should understand that: it is any to be familiar with this skill
The technical staff in art field within the technical scope disclosed by the utility model, still can be to skill documented by previous embodiment
Art scheme modify or can readily occur in variation or equivalent replacement of some of the technical features；And these modifications,
Variation or replacement, the spirit and model of the utility model embodiment technical solution that it does not separate the essence of the corresponding technical solution
It encloses, should be covered within the scope of the utility model.Therefore, the protection scope of the utility model should be with claim
Subject to protection scope.
Claims (10)
1. a kind of AR Optical devices characterized by comprising band logical polarization spectroscope and reflecting mirror；
The image light that image source projects is divided into the polarised light and second direction of first direction by the band logical polarization spectroscope
Polarised light；The exit direction of the polarised light of the first direction is far from the image source；The polarised light directive institute of the second direction
Reflecting mirror is stated, the band logical polarization spectroscope described in directive after reflecting mirror reflection, and transmit the band logical polarization spectroscope；
The band logical polarization spectroscope includes spectroscope substrate and band logical polarization beam splitter interconnected；
The band logical polarization beam splitter is more to be made of at least one set of first refractive index material and the superposition of the second refraction materials
Film structure；
The refractive index of the first refractive index material is greater than the refractive index of second refraction materials；The second refractive index material
Material is than the first refractive index material closer to the image source.
2. AR Optical devices according to claim 1, which is characterized in that the spectroscope substrate and band logical polarization point
There is adhesive layer between light film.
3. AR Optical devices according to claim 1, which is characterized in that the band logical polarization spectroscope further includes polarisation
Film；The light polarizing film is located at the outside of the spectroscope substrate, or positioned at the outside of the band logical polarization beam splitter, Huo Zhewei
Between the spectroscope substrate and the band logical polarization beam splitter；
The light polarizing film is used for the polarised light by polarization state for first direction, absorbs the polarised light that polarization state is second direction.
4. AR Optical devices according to claim 1 or 3, which is characterized in that the AR Optical devices further include wave plate group
Part；The band logical polarization spectroscope is arranged successively with the wave plate component and the reflecting mirror.
5. AR Optical devices according to claim 4, which is characterized in that the wave plate component is quarter wave plate.
6. AR Optical devices according to claim 1, which is characterized in that the reflecting mirror is curved reflector.
7. AR Optical devices according to claim 6, which is characterized in that the curved reflector includes song interconnected
Face mirror substrate and band logical reflectance coating.
8. AR Optical devices according to claim 7, which is characterized in that the band logical reflectance coating includes at least third reflect
Rate material and fourth refractive index material.
9. AR Optical devices according to claim 7, which is characterized in that the curved reflector further includes anti-reflection film.
10. a kind of wearable AR equipment, which is characterized in that including described in any one of clamping piece and the claims 1~9
AR Optical devices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821480561.6U CN208818938U (en) | 2018-09-10 | 2018-09-10 | AR Optical devices and wearable AR equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821480561.6U CN208818938U (en) | 2018-09-10 | 2018-09-10 | AR Optical devices and wearable AR equipment |
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| Publication Number | Publication Date |
|---|---|
| CN208818938U true CN208818938U (en) | 2019-05-03 |
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ID=66276596
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| CN201821480561.6U Active CN208818938U (en) | 2018-09-10 | 2018-09-10 | AR Optical devices and wearable AR equipment |
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| Country | Link |
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| CN (1) | CN208818938U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108897136A (en) * | 2018-09-10 | 2018-11-27 | 太若科技(北京)有限公司 | AR Optical devices and wearable AR equipment |
| WO2020244210A1 (en) * | 2019-06-03 | 2020-12-10 | 歌尔股份有限公司 | Optical system and virtual reality device having same |
| CN113376727A (en) * | 2021-06-16 | 2021-09-10 | 武汉天马微电子有限公司 | Optical device and display device |
-
2018
- 2018-09-10 CN CN201821480561.6U patent/CN208818938U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108897136A (en) * | 2018-09-10 | 2018-11-27 | 太若科技(北京)有限公司 | AR Optical devices and wearable AR equipment |
| WO2020244210A1 (en) * | 2019-06-03 | 2020-12-10 | 歌尔股份有限公司 | Optical system and virtual reality device having same |
| CN113376727A (en) * | 2021-06-16 | 2021-09-10 | 武汉天马微电子有限公司 | Optical device and display device |
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