CN108802984A - A kind of air suspension display system - Google Patents
A kind of air suspension display system Download PDFInfo
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- CN108802984A CN108802984A CN201810574888.8A CN201810574888A CN108802984A CN 108802984 A CN108802984 A CN 108802984A CN 201810574888 A CN201810574888 A CN 201810574888A CN 108802984 A CN108802984 A CN 108802984A
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- optical elements
- planar optical
- angle
- reverse micro
- display source
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B17/00—Systems with reflecting surfaces, with or without refracting elements
- G02B17/08—Catadioptric systems
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F19/00—Advertising or display means not otherwise provided for
- G09F19/12—Advertising or display means not otherwise provided for using special optical effects
- G09F19/16—Advertising or display means not otherwise provided for using special optical effects involving the use of mirrors
Abstract
The embodiment of the present invention provides a kind of air suspension display system.System includes：Display source, reverse micro-structure and the first planar optical elements；Wherein, reverse micro-structure includes several retrodirective reflection units, and each retrodirective reflection unit includes one with cylindrical mirror with concave surfaces and the multiple right-angle prisms being covered on any concave surface of cylindrical mirror, and reflectance coating is coated in two right-angle surfaces of each right-angle prism；First planar optical elements have partially transmitted and partially reflection function；Multiple right-angle prisms of light reverse micro-structure of directive after the first planar optical elements of display source transmitting, after the reflection of the reflectance coating of multiple right-angle prisms of reverse micro-structure, then convergence forms suspension picture in the air after the first planar optical elements.Reflection is modulated to the light that display source emits by reverse micro-structure, it is final to realize that suspension in the air shows one big visual angle, large scale, the distortionless air suspension image of fine definition, meanwhile, the system structure is simple and easy to process.
Description
Technical field
The present embodiments relate to optics display technology field more particularly to a kind of air suspension display systems.
Background technology
In daily life, industrial production, in scientific research, imaging suspension is as a kind of novel display mode.This skill
The appearance of art brings many possibility to the inventive application of every field.In advertising sector, traditional advertisement can be replaced
Version, more attractive eyeball.In the operation field of industry, the display mode of this imaging suspension can make worker with
Various safe operations are carried out under the premise of gloves.In automotive field, every data information of automobile can be presented to human eye
Front, bring safer driving experience.In addition to these aspects, imaging suspension technology can more entertain, safety, medical treatment
Etc. every field offer convenience.Therefore, a high-resolution is researched and developed, goes out screen greatly away from the air-borne imagery device of wide viewing angle has weight
Want meaning.
Existing so-called imaging suspension technology, is broadly divided into following several：
1. using the holographic cabinet of light splitting film production, this mode is that display screen is put into a spectro-film in the following, making sight
The person of examining need not wear any equipment and be perceived by skyborne picture, but this mode, be not truly
Imaging suspension, because as always in the inside of spectro-film, people also can not directly interact, and technical threshold is relatively low.
2. using high-power laser come ionized air or aerosol spraying mist dust etc., artificial change medium refraction index is real
The effect of existing imaging suspension, but this mode, size is generally all smaller, and has certain danger, likewise, not
It can directly interact.
3. the method using pixel high-velocity scanning forms the effect of imaging suspension because of the characteristic that human eye vision persists, but
It is that this mode resolution ratio is not high, has granular sensation, device complicated.
In conclusion existing air suspension display system is there are complicated, processing difficulties, observation visual angle is small, is imaged
The problem of size is small and air suspension shows fogging image.
Invention content
The embodiment of the present invention provides a kind of air suspension display system, is deposited to solve existing air suspension display system
In complicated, processing difficulties, observation visual angle is small, imaging size is small and air suspension show fogging image the problem of lack
Fall into, have it is simple in structure, it is easy to process, hardly lose resolution ratio, the advantage that observation visual angle is big, imaging size is big.
The embodiment of the present invention provides a kind of air suspension display system, including：
Display source, reverse micro-structure and the first planar optical elements；Wherein,
The reverse micro-structure includes several retrodirective reflection units, and each retrodirective reflection unit includes one and carries concave surface
Cylindrical mirror and multiple right-angle prisms for being covered on any concave surface of the cylindrical mirror, two right-angle surfaces of each right-angle prism
On be coated with reflectance coating；
First planar optical elements have partially transmitted and partially reflection function；
The light of display source transmitting after first planar optical elements reverse micro-structure described in directive it is multiple
Right-angle prism, after the reflection of the reflectance coating of multiple right-angle prisms of the reverse micro-structure, then through first planar wave member
Convergence forms suspension picture in the air after part.
A kind of air suspension display system provided in an embodiment of the present invention, by having partially transmitted and partially reflection function
The first planar optical elements light chopper is carried out to the light of display source transmitting, make the light path separation of light before and after modulation, together
When reflection is modulated to the light that display source emits by the reverse micro-structure including multiple retrodirective reflection units, it is final to realize
It suspends in the air and shows one big visual angle, large scale, the distortionless air suspension image of fine definition, meanwhile, which has
Advantage simple in structure and easy to process.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair
Some bright embodiments for those of ordinary skill in the art without creative efforts, can be with root
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is a kind of structural schematic diagram of air suspension display system provided in an embodiment of the present invention；
Fig. 2 is a kind of structural schematic diagram of reverse micro-structure provided in an embodiment of the present invention；
Fig. 3 is a kind of index path of plano-concave cylindrical mirror provided in an embodiment of the present invention；
Fig. 4 is a kind of index path of right-angle prism provided in an embodiment of the present invention；
Fig. 5 is a kind of classification chart of cylindrical mirror provided in an embodiment of the present invention；
Fig. 6 is a kind of structural schematic diagram of isosceles right-angle prism provided in an embodiment of the present invention；
Fig. 7 is a kind of structural schematic diagram for air suspension display system that another embodiment of the present invention provides；
Fig. 8 is a kind of structural schematic diagram for air suspension display system that further embodiment of this invention provides；
Fig. 9 is a kind of structural schematic diagram for air suspension display system that yet another embodiment of the invention provides.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
The every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
The present embodiments relate to following technical terms：
Cylindrical mirror：Cylindrical mirror is a kind of non-spherical lens, has focal power in one direction and is equivalent in another direction
Parallel flat can be converted into hot spot on one linear light spot.Cylindrical mirror can effectively reduce spherical aberration and aberration.It can be divided into
Piano convex cylindrical lens, plano-concave cylindrical lens, biconvex cylindrical lens, concave-concave cylinder etc..Making material can make glass or plastics.
Right-angle prism：Apex angle is the prism at right angle, and two right-angle surfaces will usually plate reflectance coating.Right-angle prism is commonly used to
Optical system imaging is deflected 90 ° by light path of transferring.Using the characteristic of critical angle, efficiently inner full-reflection incident light
It is one of the basic function of right-angle prism.Wherein, the equal direct prism of two right-angle sides is isosceles right-angle prism.
Reflex reflection：Light, which is got to, occurs reflex on reflecting element, reflection light is from the negative direction close to incident ray
A kind of reflex after return.
Aberration：In actual optical system, by the result obtained by far-off axle light rays trace and the knot obtained by paraxial rays trace
Fruit is inconsistent, and the deviation of the ideal state of these and first-order theory (first-order theory or paraxial rays) is called aberration.
Fig. 1 is a kind of structural schematic diagram of air suspension display system provided in an embodiment of the present invention, as shown in Figure 1, should
System includes：
Display source M1, reverse micro-structure M3 and the first planar optical elements M2.Wherein：
The reverse micro-structure M3 includes several retrodirective reflection units, and each retrodirective reflection unit includes one with recessed
The cylindrical mirror in face and the multiple right-angle prisms being covered on any concave surface of the cylindrical mirror, two right angles of each right-angle prism
Reflectance coating is coated on face.The first planar optical elements M2 has partially transmitted and partially reflection function.The display source
Multiple right-angle prisms of light reverse micro-structure M3 described in directive after the first planar optical elements M2 of M1 transmittings, through institute
After the reflectance coating reflection for stating multiple right-angle prisms of reverse micro-structure M3, then after the first planar optical elements M2 in the air
Convergence forms suspension picture.
Wherein, display source M1 is a kind of electronic equipment, it can provide vision content information to viewer.It can be liquid
Crystal display (LCD), laser writer, projecting apparatus, light-emitting diode display, OLED display, quantum dot displays, reality to be illuminated
Border object and other can show the device and system of vision content.It is used for showing static, dynamic and arbitrary energy
Content that is enough shown or seeing.The content that static content refers to display does not change with time and changes, it includes but not
It is limited to picture, static image, static text and chart data etc..Dynamic content refers to the content for changing with time and changing, it
Including but not limited to recorded video, real-time video, the image of variation, dynamic text and chart data etc..
Reverse micro-structure M3 is made of several retrodirective reflection units, wherein several are one or more.It needs to illustrate
If reverse micro-structure M3 is made of multiple retrodirective reflection units, multiple retrodirective reflection units are arranged in array-like.For
Each retrodirective reflection unit, by one with cylindrical mirror with concave surfaces and the multiple right angles being covered on any concave surface of the cylindrical mirror
Prism, multiple right-angle prisms are arranged in array-like.It is to be appreciated that the quantity of retrodirective reflection unit can be by reverse micro-structure M3
Actual needs is selected.Also, preferably, the full entire concave surface of right-angle prism covering.
Fig. 2 is a kind of structural schematic diagram of reverse micro-structure provided in an embodiment of the present invention, in conjunction with Fig. 2 to reverse micro-structure
It makes an explanation.As shown in Fig. 2, reverse micro-structure includes a retrodirective reflection unit, which includes a plano-concave
Cylindrical mirror and the multiple right-angle prisms being covered on the concave surface of plano-concave cylindrical mirror, preferably, right-angle prism herein can be
Isosceles right-angle prism.
Fig. 2 (a) is the side view of reverse micro-structure, and Fig. 2 (b) is the vertical view of reverse micro-structure.Such as Fig. 2 (a) and Fig. 2
(b) shown in, reverse micro-structure is made of mirror layer 1 and plano-concave cylindrical mirror 2, wherein mirror layer 1 includes multiple right-angled edges
Mirror.As shown in Fig. 2 (a), since multiple right-angle prisms have been covered in the concave surface of plano-concave cylindrical mirror, individually see right-angle prism
If, right-angle prism is covered in concave surface.Actually plano-concave cylindrical mirror is provided solely for the environment of a concave surface covering surface, if
Without plano-concave cylindrical mirror, prism is directly allowed to be covered in concave surface also possible.Since right-angle prism is covered in concave surface,
Have the function of plano-concave cylindrical mirror, that is, light is modulated in one direction, in other words as by light in one direction
It is compressed, and is not made any processing in another direction.And right-angle prism can be modulated light in right angle orientation, make
Light is returned according to original route, achievees the effect that reflex reflection.Therefore, light may be implemented in the right-angle prism in the embodiment of the present invention
It is modulated while in two directions, achievees the effect that be imaged object reflex reflection.
Fig. 3 is a kind of index path of plano-concave cylindrical mirror provided in an embodiment of the present invention, in conjunction with Fig. 3 to the work of plano-concave cylindrical mirror
With illustrating.As shown in figure 3, Fig. 3 (a) is the side view of plano-concave cylindrical mirror, light is from luminous point directive plano-concave cylindrical mirror
Concave surface, and convergent point is formed back from concave reflection.Fig. 3 (b) is the vertical view of plano-concave cylindrical mirror.From figure 3, it can be seen that plano-concave
Cylindrical mirror converges light in vertical direction, is equivalent to parallel flat in the horizontal direction, is not modulated to light.
Fig. 4 is a kind of index path of right-angle prism provided in an embodiment of the present invention, and Fig. 4 (a) is stereogram, and Fig. 4 (b) is side
View.As shown in figure 4, right-angle prism can be modulated light in right angle orientation, so that light is returned according to original route, reach inverse
The effect of reflection.
It is described below how determining the quantity of retrodirective reflection unit in reverse micro-structure M3：
To reduce difficulty of processing, conducive to processing, right-angle prism directly is covered in any concave surface with cylindrical mirror with concave surfaces,
In this manner it is possible to which the light of plano-concave cylindrical mirror and right-angle prism is utilized to modulate simultaneously, the effect of imaging suspension is formed.When demand
When size is smaller, reverse micro-structure can only include one piece of plano-concave cylindrical mirror, then cover right-angle prism in concave surface, in this way can also
It is cost-effective.It, can be by plano-concave cylindrical mirror when the imaging precision of demand is bigger or to do large-sized suspension effect
Size is done small, then covers right-angle prism array in concave surface, then total done array, you can realize large-sized suspension
Picture.
The first planar optical elements M2 with partially transmitted and partially reflection function, the range of transmissivity are：1%~
99%, the range of reflectivity is：1%~99%.Its material can be glass or acrylic and other plastic materials.It is thick
Degree can be formulated according to actual needs.
Institute represents suspend aerial still image or dynamic video, observer to system at suspending as M4 in the air
Image or video floating can be seen vividly in the air, and can pass through suspension picture with hand.
Specifically, light first time directive right-angle prism after the first planar optical elements M2 of display source M1 transmittings,
Every light is passed through the first planar optical elements M2, is converged in the air for the second time by after the reflectance coating reflection of corresponding right-angle prism
Combinate form is at suspension as M4.Due to reverse micro structure array M2Middle may include the retrodirective reflection unit of multiple array settings, often
A retrodirective reflection unit may include the right-angle prism of multiple array settings so that the light of directive right-angle prism can be right
The right-angle prism answered individually modulation and reflection, greatly improves the modulation capability to emit beam to display source M1.
A kind of air suspension display system provided in an embodiment of the present invention, by having partially transmitted and partially reflection function
The first planar optical elements light chopper is carried out to the light of display source transmitting, make the light path separation of light before and after modulation, together
When reflection is modulated to the light that display source emits by the reverse micro-structure including multiple retrodirective reflection units, it is final to realize
It suspends in the air and shows one big visual angle, large scale, the distortionless air suspension image of fine definition, meanwhile, which has
Advantage simple in structure and easy to process.
Based on above-described embodiment, the cylindrical mirror is plano-concave cylindrical mirror, concave-concave cylindrical mirror or concave-convex cylindrical mirror.
Fig. 5 is a kind of classification chart of cylindrical mirror provided in an embodiment of the present invention, as shown in figure 5, Fig. 5 (a) is plano-concave cylinder
Mirror, Fig. 5 (b) are concave-concave cylindrical mirror, Fig. 5 (c) is concave-convex cylindrical mirror.Cylindrical mirror in the embodiment of the present invention can be above-mentioned three kinds
Any one of cylindrical mirror.
Based on above-described embodiment, the center thickness of the cylindrical mirror is 0-500mm, and the edge thickness of the cylindrical mirror is 0-
The circumscribed circle diameter of 500mm, the cylindrical mirror are 0-500mm.
As shown in figure 5, R1 and R2 are the radius of curvature in former and later two faces of cylindrical mirror, the value range of absolute value is：R
≥0mm.L is the center thickness of cylindrical mirror, and value range is：500mm >=L > 0mm.L1 is the edge thickness of cylindrical mirror,
Value range is：500mm >=L1 > 0mm.The shape of optics cylindrical mirror can be that rectangle, circle, square, hexagon etc. are arbitrary
Shape, therefore D refers to the size of each cylindrical mirror circumscribed circle diameter, range of choice is：500mm >=D > 0mm.Each cylindrical mirror institute
It can be made of various glass materials (such as crown glass, flint glass, dense crown, dense flint glass or LA systems
Glass etc.)；Can be plastic resin material (such as PMMA, PC, COC, POLYCARB)；It according to actual needs can be on cylindrical mirror
Plate various optical films (such as anti-reflection antireflective film).
Based on above-described embodiment, the right-angle prism is isosceles right-angle prism.
Further, Fig. 6 is a kind of structural schematic diagram of isosceles right-angle prism provided in an embodiment of the present invention, in order to reduce
The aberration of system to improve the clarity of display, the size of isosceles right-angle prism is done it is small, as shown in fig. 6, the value range of P
For：1mm≥P≥10um.The value range of H is 1mm >=H >=10um, wherein within this range, value is smaller, image aberration meeting
Smaller, image can be more clear.
It is further, aobvious to improve in order to reduce the aberration of system as a preferred embodiment based on above-described embodiment
Cylindrical mirror is made aspherical face type by the clarity shown
The face type formula that optical element follows：
In above formula, z is the rise of lens, and c is curvature, and r is radial bore, and k is circular cone coefficient, α1~α7It is aspherical system
Number.
Table 1 is face type optimum results table, and the unit of curvature, thickness and half bore in table 1 is mm.
1 face type optimum results table of table
Face shape parameter in table 1 is one such possibility, in fact, the change of system optimization desired value, optimization
Change, the change of optimization sequence, the selection (selection of built-in variable) of face type formula and the optimization algorithm that variable is selected are selected all
It can obtain different variate-value knead dough shape parameters, therefore have the result of the numerous face shape parameter met the requirements.These all belong to
It can be obtained not by modification after with reference to above-described embodiment without creative efforts in industry personnel
Same face shape parameter, these should belong to the protection domain of the embodiment of the present invention.
Based on above-described embodiment, the display source is arranged in a mutually vertical manner or arranged in parallel with the reverse micro-structure.
Based on above-described embodiment, the display source is arranged in a mutually vertical manner with the reverse micro-structure, first planar light
It learns element with the display source to be arranged in the first predetermined angle, first predetermined angle is 0-90 °.The display source transmitting
Multiple right-angle prisms of light reverse micro-structure described in directive after first planar optical elements, through the reverse micro-structure
Multiple right-angle prisms reflectance coating reflection after, then through first planar optical elements transmission after in the air convergence formed suspend
Picture.
Specifically, referring again to FIGS. 1, by showing that the M1 light launched in source is incident on partially transmitted and partially reflecting
The first planar optical elements M2 on, after light is reflected by M2 on the reverse micro-structure M3 of directive, by the reverse micro-structure M3 tune
It is reflected after system and converges imaging in its right hand side air after M2.L1 is the display source centers M1 to the first planar optical elements M2
The distance at center.Its variation range is 5000mm >=L1 >=0mm.L2 is the first centers planar optical elements M2 to reverse micro-structure
The distance at the centers M3, variation range are 5000mm >=L2 >=0mm.L3 is the first centers planar optical elements M2 to being suspended in sky
In the centers image M4 distance, variation range be 5000mm >=L3 >=0mm.θ0It is the first predetermined angle, variation range
For 0 ° >=θ0≥90°.θ is viewing visual angle, and variation range is：180 ° >=θ >=0 °, it should be noted that：It looks around visual angle can
To be 360 degree.Show that the variation range of the ratio of picture size is 0.1 in the size and display source M1 of suspended images:1 to 10:1.
It is the one of which structure type of the display system shown in Fig. 1, is not the protection model for limiting the display system
It encloses, one or more members with reflection function can essentially be added in any position between display source and suspended images
The effect shown that suspends equally may be implemented in part.In order to eliminate the influence of ambient light and glare, can also add in above-mentioned light path
Enter polarizer (linear polarization or circuit polarizer), quarter-wave delayer etc..
Based on above-described embodiment, the system also includes：The second planar optical elements with reflection function；Described first
Planar optical elements are arranged with the display source in the second predetermined angle, and second predetermined angle is 0-90 °；Described second is flat
Face optical element is arranged with the display source in third predetermined angle, and the third predetermined angle is 0-90 °.The display source hair
Multiple right-angle prisms of the light penetrated reverse micro-structure described in directive after first planar optical elements, through described reverse micro-
After the reflectance coating reflection of multiple right-angle prisms of structure, then successively through first planar optical elements and second planar light
Convergence in the air forms suspension picture after learning element transmission.
A kind of structural schematic diagram for air suspension display system that Fig. 7 provides for another embodiment of the present invention, reference Fig. 7,
By showing that the light that source M1 launches is incident on the first planar optical elements M2 for having and partially transmitted and partially reflecting, light
Enter on reverse micro-structure M3 after being reflected by M2, is reflected after the reverse micro-structure M3 modulation and enter back into second after M2
Planar optical elements N1 forms the picture M4 of suspension after being reflected by N1.L1 is to show the source centers M1 to the first planar wave member in Fig. 7
The distance at the centers part M2.Its variation range is 5000mm >=L1 >=0mm.L2 is the first centers planar optical elements M2 to reverse micro-
The distance at the centers structure M3, variation range are 5000mm >=L2 >=0mm.L3 is the first centers planar optical elements M2 to second
The distance at the centers planar optical elements N1, variation range are 5000mm >=L3 >=0mm.L0 is suspended as M4 to the second planar light
Learn the distance at the centers element N1.θ0For the second predetermined angle, variation range is 0 ° >=θ0≥90°。θ1For third predetermined angle,
Its variation range is 0 ° >=θ1≥90°.θ is viewing visual angle, and variation range is：180 ° >=θ >=0 °, it should be noted that：Its
It can be 360 degree to look around visual angle.Show that the variation range of the ratio of picture size is in the size and display source M1 of suspended images
0.1:1 to 10:1.
It should be noted that in the figure 7, with the first planar optical elements M2 partially transmitted and partially reflected and inversely
It is one of example that the second planar optical elements N1, Fig. 7 with reflection function is added between micro-structure M3, is not
The protection domain and permission of the embodiment of the present invention are limited, in M2 and can essentially be suspended one or more as being added between M4
The effect shown that suspends equally may be implemented in element with reflection function.In order to eliminate the influence of ambient light and glare, also may be used
Polarizer (linear polarization or circuit polarizer), quarter-wave delayer etc. to be added in above-mentioned light path.
Based on above-described embodiment, the display source and the reverse micro-structure are arranged in parallel, the system also includes：
Third planar optical elements with reflection function；First planar optical elements are in the 4th predetermined angle with the display source
Setting, the 4th predetermined angle are 0-90 °；The third planar optical elements are set with the display source in the 5th predetermined angle
It sets, the 5th predetermined angle is 0-90 °.The light of the display source transmitting is successively through the third planar optical elements and institute
The multiple right-angle prisms for stating reverse micro-structure described in directive after the first planar optical elements reflect, through the more of the reverse micro-structure
After the reflectance coating reflection of a right-angle prism, then convergence in the air forms suspension picture after first planar optical elements transmission.
A kind of structural schematic diagram for air suspension display system that Fig. 8 provides for further embodiment of this invention, reference Fig. 8,
L0 is the distance for showing the source centers M1 to the centers third planar optical elements N1, and variation range is：5000mm≥L0≥0mm.
L1 is the third centers planar optical elements N1 to the first centers planar optical elements M2 with fractional transmission and part reflection
Distance, variation range are 5000mm >=L1 >=0mm.θ0For the 4th predetermined angle, variation range is 0 ° >=θ0≥90°。θ1For
5th predetermined angle, variation range are：0°≥θ1≥90°.L2 is the first centers planar optical elements M2 to reverse micro-structure
The distance at the centers M3, variation range are 5000mm >=L2 >=0mm.L3 is the first centers planar optical elements M2 to being suspended in sky
In the centers image M4 distance, variation range be 5000mm >=L3 >=0mm.θ is viewing visual angle, and variation range is：
180 ° >=θ >=0 °, need to declare is：It can be 360 degree that it, which looks around visual angle, and the size of suspended images is shown on display source M1
The variation range of the ratio of picture size is 0.1:1 to 10:1.
It should be noted that in fig. 8 it is shown that source M1 and the first planar wave member with fractional transmission and part reflection
It can be one or more that third planar optical elements N1, N1 with reflection function are added between part M2.Fig. 8 is it
In an example, be not the protection domain and permission for limiting the embodiment of the present invention, in order to eliminate the shadow of ambient light and glare
It rings, polarizer (linear polarization or circuit polarizer), quarter-wave delayer etc. can also be added in above-mentioned light path.
Based on above-described embodiment, first planar optical elements are arranged with the display source in the 6th predetermined angle, institute
It is 0-90 ° to state the 6th predetermined angle；The third planar optical elements are arranged with the display source in the 7th predetermined angle, described
7th predetermined angle is 0-90 °.The light of the display source transmitting is successively through first planar optical elements and the third
Multiple right-angle prisms of reverse micro-structure described in directive, multiple right angles through the reverse micro-structure after planar optical elements reflection
After the reflectance coating reflection of prism, then convergence in the air forms suspension picture after third planar optical elements transmission.
A kind of structural schematic diagram for air suspension display system that Fig. 9 provides for yet another embodiment of the invention, reference Fig. 9,
By showing that the light that source M1 launches is incident on the first planar optical elements M2 for having and partially transmitted and partially reflecting, light
Enter on third planar optical elements N1 after being reflected by M2, it is reverse by this on reverse micro-structure M3 after N1 reflects
It is reflected after micro-structure M3 modulation and converges imaging in its right hand side air after M2.L1 is to show the source centers M1 in Fig. 9
The distance at one centers planar optical elements M2.Its variation range is 5000mm >=L1 >=0mm.L2 is the first planar optical elements M2
To the distance at the centers reverse micro-structure M3, variation range is 5000mm >=L2 >=0mm at center.L3 is the first planar optical elements
To the distance at the centers skyborne image M4 that suspend, variation range is 5000mm >=L3 >=0mm at the centers M2.θ0It is the 6th default
Angle, variation range are 0 ° >=θ0≥90°。θ1It is the 7th predetermined angle, variation range is 0 ° >=θ1≥90°.θ is viewing
Visual angle, variation range are：180 ° >=θ >=0 °, need to declare is：It can be 360 degree that it, which looks around visual angle,.The ruler of suspended images
Show that the variation range of the ratio of picture size is 0.1 on very little and display source M1:1 to 10:1.
It should be noted that in fig.9, with the first planar optical elements M2 partially transmitted and partially reflected and inversely
It is one of example that third planar optical elements N1, Fig. 9 with reflection function are added between micro-structure M3, is not
The protection domain and permission of the embodiment of the present invention are limited, can essentially be added between M2 and M3 one or more with anti-
The element of function is penetrated, the effect shown that suspends equally may be implemented.It, can also be upper in order to eliminate the influence of ambient light and glare
It states and polarizer (linear polarization or circuit polarizer), quarter-wave delayer etc. is added in light path.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, it will be understood by those of ordinary skill in the art that：It still may be used
With technical scheme described in the above embodiments is modified or equivalent replacement of some of the technical features；
And these modifications or replacements, various embodiments of the present invention technical solution that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (9)
1. a kind of air suspension display system, which is characterized in that including：
Display source, reverse micro-structure and the first planar optical elements；Wherein,
The reverse micro-structure includes several retrodirective reflection units, and each retrodirective reflection unit includes one with column with concave surfaces
Face mirror and the multiple right-angle prisms being covered on any concave surface of the cylindrical mirror, in two right-angle surfaces of each right-angle prism
It is coated with reflectance coating；
First planar optical elements have partially transmitted and partially reflection function；
Multiple right angles of light reverse micro-structure described in directive after first planar optical elements of the display source transmitting
Prism, after the reflection of the reflectance coating of multiple right-angle prisms of the reverse micro-structure, then after first planar optical elements
Convergence forms suspension picture in the air.
2. system according to claim 1, which is characterized in that the cylindrical mirror be plano-concave cylindrical mirror, concave-concave cylindrical mirror or
Concave-convex cylindrical mirror.
3. system according to claim 1, which is characterized in that the center thickness of the cylindrical mirror is 0-500mm, the column
The edge thickness of face mirror is 0-500mm, and the circumscribed circle diameter of the cylindrical mirror is 0-500mm.
4. system according to claim 1, which is characterized in that the right-angle prism is isosceles right-angle prism.
5. system according to claim 1, which is characterized in that the display source is arranged in a mutually vertical manner with the reverse micro-structure
Or it is arranged in parallel.
6. system according to claim 5, which is characterized in that the display source is mutually perpendicular to set with the reverse micro-structure
It sets, first planar optical elements are arranged with the display source in the first predetermined angle, and first predetermined angle is 0-
90°；
Multiple right angles of light reverse micro-structure described in directive after first planar optical elements of the display source transmitting
Prism, after the reflection of the reflectance coating of multiple right-angle prisms of the reverse micro-structure, then it is saturating through first planar optical elements
Convergence forms suspension picture in the air after penetrating.
7. system according to claim 6, which is characterized in that the system also includes：The second plane with reflection function
Optical element；First planar optical elements are arranged with the display source in the second predetermined angle, second predetermined angle
It is 0-90 °；Second planar optical elements are arranged with the display source in third predetermined angle, and the third predetermined angle is
0-90°；
Multiple right angles of light reverse micro-structure described in directive after first planar optical elements of the display source transmitting
Prism, after the reflection of the reflectance coating of multiple right-angle prisms of the reverse micro-structure, then successively through first planar wave member
Convergence in the air forms suspension picture after part and second planar optical elements transmission.
8. system according to claim 5, which is characterized in that the display source is mutually parallel with the reverse micro-structure and sets
It sets, the system also includes：Third planar optical elements with reflection function；First planar optical elements are shown with described
Show that source is arranged in the 4th predetermined angle, the 4th predetermined angle is 0-90 °；The third planar optical elements and the display
Source is arranged in the 5th predetermined angle, and the 5th predetermined angle is 0-90 °；
The light of the display source transmitting is reflected through the third planar optical elements and first planar optical elements successively
Multiple right-angle prisms of reverse micro-structure described in directive afterwards, the reflectance coating reflection of multiple right-angle prisms through the reverse micro-structure
Afterwards, it then is converged in the air after first planar optical elements transmission and forms suspension picture.
9. system according to claim 8, which is characterized in that first planar optical elements are in the 6th with the display source
Predetermined angle is arranged, and the 6th predetermined angle is 0-90 °；The third planar optical elements are pre- in the 7th with the display source
If angle is arranged, the 7th predetermined angle is 0-90 °；
The light of the display source transmitting is reflected through first planar optical elements and the third planar optical elements successively
Multiple right-angle prisms of reverse micro-structure described in directive afterwards, the reflectance coating reflection of multiple right-angle prisms through the reverse micro-structure
Afterwards, it then is converged in the air after third planar optical elements transmission and forms suspension picture.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810574888.8A CN108802984A (en) | 2018-06-06 | 2018-06-06 | A kind of air suspension display system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810574888.8A CN108802984A (en) | 2018-06-06 | 2018-06-06 | A kind of air suspension display system |
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| CN108802984A true CN108802984A (en) | 2018-11-13 |
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| CN110221419A (en) * | 2019-07-08 | 2019-09-10 | 北京邮电大学 | A kind of air suspension imaging device |
| CN110675782A (en) * | 2019-09-26 | 2020-01-10 | 京东方科技集团股份有限公司 | Suspension display system and method for displaying by using same |
| CN110989195A (en) * | 2019-11-26 | 2020-04-10 | 深圳奥比中光科技有限公司 | Three-dimensional image suspension display system and method |
| CN111338015A (en) * | 2020-04-17 | 2020-06-26 | 荆门市探梦科技有限公司 | Two-dimensional feature-based reflective geometric holographic film and preparation method and application thereof |
| CN112201185A (en) * | 2020-11-18 | 2021-01-08 | 深圳市传呈科技有限公司 | Medium-free aerial imaging |
| CN113391459A (en) * | 2021-04-28 | 2021-09-14 | 北京邮电大学 | Suspended three-dimensional display equipment based on turn-back suspended device array |
| CN114815010A (en) * | 2022-05-15 | 2022-07-29 | 佛山科学技术学院 | Lens array for 3D suspension imaging and device thereof |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110221419A (en) * | 2019-07-08 | 2019-09-10 | 北京邮电大学 | A kind of air suspension imaging device |
| CN110675782A (en) * | 2019-09-26 | 2020-01-10 | 京东方科技集团股份有限公司 | Suspension display system and method for displaying by using same |
| CN110675782B (en) * | 2019-09-26 | 2023-01-31 | 京东方科技集团股份有限公司 | Floating display system and method for displaying by utilizing same |
| CN110989195A (en) * | 2019-11-26 | 2020-04-10 | 深圳奥比中光科技有限公司 | Three-dimensional image suspension display system and method |
| CN111338015A (en) * | 2020-04-17 | 2020-06-26 | 荆门市探梦科技有限公司 | Two-dimensional feature-based reflective geometric holographic film and preparation method and application thereof |
| CN111338015B (en) * | 2020-04-17 | 2023-05-02 | 荆门市探梦科技有限公司 | Reflective geometric holographic film based on two-dimensional characteristics and preparation method and application thereof |
| CN112201185A (en) * | 2020-11-18 | 2021-01-08 | 深圳市传呈科技有限公司 | Medium-free aerial imaging |
| CN113391459A (en) * | 2021-04-28 | 2021-09-14 | 北京邮电大学 | Suspended three-dimensional display equipment based on turn-back suspended device array |
| CN114815010A (en) * | 2022-05-15 | 2022-07-29 | 佛山科学技术学院 | Lens array for 3D suspension imaging and device thereof |
| CN114815010B (en) * | 2022-05-15 | 2024-02-09 | 佛山科学技术学院 | Lens array for 3D suspension imaging and device thereof |
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Application publication date: 20181113 |