CN109143768A - A kind of naked eye 3D display system suitable for laser projection - Google Patents
A kind of naked eye 3D display system suitable for laser projection Download PDFInfo
- Publication number
- CN109143768A CN109143768A CN201811068235.9A CN201811068235A CN109143768A CN 109143768 A CN109143768 A CN 109143768A CN 201811068235 A CN201811068235 A CN 201811068235A CN 109143768 A CN109143768 A CN 109143768A
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- China
- Prior art keywords
- projection
- light source
- naked eye
- shell
- display system
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Classifications
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B35/00—Stereoscopic photography
- G03B35/18—Stereoscopic photography by simultaneous viewing
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/145—Housing details, e.g. position adjustments thereof
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/16—Cooling; Preventing overheating
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/54—Accessories
Abstract
The invention discloses a kind of naked eye 3D display systems suitable for laser projection, according to directive property light sources project display technology, vacuum-packed confined space is placed in using the projection path that goes out that will be directed toward projection combination, the ray cast for issuing directive property light source is interfered without air, it is projected in vacuum environment, avoid that air stream, sundries influences the obstruction of light in gas, effectively realize that directive property light source complete, stable can project on projection screen, to effectively improve the image quality of projection and the display effect of naked eye 3D；Simultaneously, the dust of confined space can be effectively absorbed by the way that dust exhaust apparatus is arranged, the temperature of confined space can be effectively controlled in preferred cryogenic pump and cooling blower, the spacing between projection arrangement and projection screen is adjusted when can be easily installed by the way that gasket is arranged, by the way that damping is arranged, can effectively avoid display system is influenced by external shock, has the characteristics that reasonable topology layout, strong antijamming capability and display effect are good.
Description
Technical field
The present invention relates to 3D display technical field, specifically a kind of naked eye 3D display system suitable for laser projection.
Background technique
The developing history for looking back display industry, from original black-and-white television to color TV, high definition television till now, with
And the high-tech products such as VR, AR, the visual demand of people are constantly being promoted, then naked eye 3D display technology is just come into being.Closely
Nian Lai, naked eye 3D display technology is fast-developing, wherein slit grating 3D technology, cylindrical lenses 3D technology and direction light source 3D skill
Art has become the mainstream technology in large-size screen monitors advertising market at present.
In optical principle, due to light source diffusion, the image in the different angle of space is not unique, therefore, in people
When eye observation 3D rendering, easily cause visual fatigue.Application No. is 201610034105.8 patents of invention to disclose a kind of projection
Formula bore hole 3D display device and its colorization display device, compared to the prior art, directive property projection screen provides empty for the invention
Between Spatial transmission, liquid crystal chip provide multi-view image amplitude modulation, the two combine, have all information of holographic display, no
It is also easy to produce visual fatigue, also without distance limitation, and is amplified by projection lens and is formed, realizes that the naked eye 3D of large format is aobvious
Show.
But the projection bore hole 3D display device of above-mentioned technical proposal does not have although having all information of holographic display
There is distance to limit, realizes the naked eye 3D display of large format, but the program is reasonable there is no carrying out from system to display device
Layout, the image quality or resolution limitations of projection, display effect is unstable, is easy by the real ring such as air, temperature, vibration
The interference and influence in border.
Summary of the invention
In order to solve the above technical problems, it is an object of the invention to propose a kind of to overcome air, temperature and vibration etc.
Actual environment influences, and has strong antijamming capability and the high naked eye 3D display system suitable for laser projection of image display quality
System.
In order to achieve the above objectives, technical scheme is as follows:
A kind of naked eye 3D display system suitable for laser projection, including directive property light source, projection arrangement and projection screen,
Be characterized in that: the directive property light source is constituted to be directed toward to project with projection arrangement and be combined, and further includes support, shell, box body, damping machine
Structure and pump assembly:
The shell is fixedly connected by damping with support, and shell has hollow cavity open at one end；
The damping includes that quantity is several fixture block and elastic component, and the fixture block is fixed on the support, several cards
Block is constituted between surrounding to the constraint space that laterallys secure of shell, and the connection of shell and support is arranged in several described elastic components
Between face；
The box body is arranged in hollow cavity, and for directive property light source and projection arrangement to be fixedly mounted, box body refers to box body
Tropism light source constitutes projecting direction with projection arrangement and combines with the corresponding direction projection that is open；
It further include several cushion blocks being arranged between box body and shell, by increasing and decreasing the cushion block for adjusting projection dress
Set the spacing between projection screen；
The projection screen is mounted on the opening, and the hollow cavity after installing projection screen constitutes confined space；
The conduit that the pump assembly includes setting aspiration pump on the support, is arranged on shell and is connected to confined space
And the control valve and pressure gauge of the outlet section of conduit are set, the air entry of the conduit and aspiration pump passes through piping connection；
When work, projection screen is invested at the light end that goes out for being directed toward projection combination, and the front space of projection screen forms poly- view
Point, to obtain naked eye 3D display, confined space remains vacuum state, when the pressure value of pressure gauge is higher than vacuum state pressure
When value, control valve is opened, and pumping pump startup is evacuated outward, when the pressure value of pressure gauge reaches vacuum state pressure value, control valve
It closes, aspiration pump stops.
Further, the shell is circumferentially with ring shield, and it is empty that annular is formed between the ring shield and shell
Chamber.
Further, air inlet and venthole are respectively equipped on the ring shield, the quantity of the venthole is more
It is a, and air inlet is connected with toroidal cavity with venthole.
It further, further include the cooling blower of setting on the support, the air outlet of the cooling blower passes through connecting tube
Road is connect with air inlet.
Further, the aspiration pump is cryogenic pump.
It further, further include the dust exhaust apparatus being arranged in confined space.
Further, the dust exhaust apparatus includes non-woven fabrics, Electrostatic Absorption felt and active carbon particle, the non-woven fabrics
For the packed form for forming non-woven bag, the active carbon particle is built in non-woven bag, the Electrostatic Absorption felt setting
In non-woven bag outer surface.
Further, the directive property light source includes rectangular light guide plate and light source group, and the rectangular light guide plate is arranged in box
The outer wall of box body is arranged in the inner cavity of body, the light source group.
Further, the light source group includes first light source group, second light source group and third light source group, the first light source
Group, second light source group and third light source group respectively correspond R, G, B tricolor laser.
Further, the projection arrangement include be set in turn in the directive property light source go out light end display chip and
Projection lens, the light source of directive property light source that the display chip will acquire irradiation with after multi-view image signal modulation by projecting
The light end that goes out of camera lens amplification, the projection lens protrudes from except box body, and corresponding with projection screen.
Beneficial effects of the present invention:
The technical program is according to directive property light sources project display technology, using the projection path out that will be directed toward projection combination
It is placed in vacuum-packed confined space, the ray cast for issuing directive property light source is interfered without air, is thrown in the environment of vacuum
Penetrate, avoid that air stream, sundries influences the obstruction of light in gas, effectively realize be directed toward project combined light source can it is complete,
Stable projects on projection screen, to effectively improve the image quality of projection and the display effect of naked eye 3D；Meanwhile passing through
Pump assembly can real-time ensuring confined space vacuum state, confined space can be effectively controlled in preferred cryogenic pump and cooling blower
Temperature adjusts the spacing between projection arrangement and projection screen, by the way that damping machine is arranged when can be easily installed by the way that gasket is arranged
Structure, can effectively avoid display system is influenced by external shock, reasonable, strong antijamming capability, image quality with topology layout
The stable and good feature of display effect, suitable for practical application in the art.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the embodiment of the present invention；
Fig. 2 is the partial enlargement structural representation in Fig. 1.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention more comprehensible, below in conjunction with attached drawing, to the present invention make into
One step is described in detail.
It should be noted that unless otherwise indicated, technical term or scientific term used in this application should be this hair
The ordinary meaning that bright one of ordinary skill in the art are understood.
As shown in Figure 1 and Figure 2, a kind of naked eye 3D display system suitable for laser projection, including directive property light source 1, projection dress
2 and projection screen 3 are set, the directive property light source is constituted to be directed toward to project with projection arrangement and be combined, refers to specifically, projection screen is located at
Go out light end to projection combination, is directed toward on the ray cast to projection screen that projection combination issues namely directive property light source issues
Multi-view image signal carry out Spatial transmission after in the front of projection screen form poly- viewpoint, further include support 4, shell 5, box
Body 6, damping 7 and pump assembly 8.
The shell is fixedly connected by damping with support, and support can be used as installation base surface, and damping can play
External shock is avoided to guarantee the stability of shell to the interference of shell to the cushioning effect of shell, and then effectively, and shell has
Open at one end 51 hollow cavity 52.
The box body is arranged in hollow cavity, and for directive property light source and projection arrangement to be fixedly mounted, box body refers to box body
Tropism light source constitutes projecting direction with projection arrangement and combines with the corresponding direction projection that is open.
The projection screen is mounted on the opening, and the hollow cavity after installing projection screen constitutes confined space, by
It is upper it is found that the direction after installation to project combined projecting direction corresponding with projection screen, be directed toward projection combination and throwing to meet
The projection display funciton of shadow screen needs.
The pump assembly includes setting aspiration pump 81 on the support, is arranged on shell and what is be connected to confined space leads
Pipe 82 and be arranged in conduit outlet section control valve 83 and pressure gauge 84, the air entry of the conduit and aspiration pump passes through pipe
Road connection, control valve is preferably solenoid valve, further includes control unit, and pressure gauge can be implemented to show the pressure value of confined space,
Aspiration pump, pressure gauge and solenoid valve are electrically connected with control unit, to realize control unit integrated control, wherein can set
The pressure value of the vacuum state of confined space is reference value, the start and stop of aspiration pump is controlled by control unit, and then guarantee close
Space is closed to maintain in reference value always.
A kind of technical principle of naked eye 3D display system suitable for laser projection of above-mentioned technical proposal:
When work, projection screen is invested at the light end that goes out for being directed toward projection combination, and the front space of projection screen forms poly- view
Point, to obtain naked eye 3D display, confined space remains vacuum state, when the pressure value of pressure gauge is higher than vacuum state pressure
When value, control valve is opened, and pumping pump startup is evacuated outward, when the pressure value of pressure gauge reaches vacuum state pressure value, control valve
Close, aspiration pump stops, the start and stop of aspiration pump and solenoid valve it is on and off by above-mentioned preferred control unit integrated control.
Compared with the prior art, above-mentioned technical proposal is placed in vacuum-packed closed using the projection path out that will be directed toward projection combination
Space, and then the projection ray for issuing directive property light source interferes without air, can project in the environment of vacuum, avoid sky
Sundries influences the obstruction of projection ray in air-flow, gas, effectively realizes and is directed toward the throwing that the combined light source of projection can be complete, stable
On shadow to projection screen, to effectively improve the image quality of projection and the display effect of naked eye 3D；Meanwhile it can by pump assembly
The vacuum state of real-time ensuring confined space can effectively avoid shadow of the display system by external shock by the way that damping is arranged
It rings, has the characteristics that topology layout is reasonable, strong antijamming capability, image quality stabilization are good with display effect, be suitable for this field
Interior practical application.
As a kind of preferred technical solution, the shell is circumferentially with ring shield 501, the ring shield and shell
Toroidal cavity 502 is formed between body, ring shield can play the protective effect to shell, can also make the toroidal cavity structure to be formed
At cooling duct.
As a kind of preferred technical solution, air inlet 503 and venthole 504 are respectively equipped on the ring shield,
The quantity of the venthole is multiple, and air inlet is connected with toroidal cavity with venthole, it is preferred that the setting position of venthole
Set cooling effect mutually separate with air inlet, and then improving subsequent cooling airflow.
It further include the cooling blower 9 of setting on the support as a kind of preferred technical solution, the cooling blower goes out
Air port is connect by connecting line with air inlet, specifically, distinguished and admirable being entered by air inlet of generating of the air outlet of cooling blower
Toroidal cavity, while being discharged by several ventholes, and then make distinguished and admirable can realize around the path of toroidal cavity to shell circumferential direction
Cooling namely toroidal cavity constitutes cooling duct, and then effectively accelerates distributing for heat on shell, improves heat dissipation effect, protects
The temperature for demonstrate,proving confined space, improves the image quality of projection.
As a kind of preferred technical solution, the aspiration pump is cryogenic pump, and preferred cryogenic pump has and cooling blower
Similar cooling effect further can effectively control the temperature of confined space.
Further include the dust exhaust apparatus 101 being arranged in confined space as a kind of preferred technical solution, is inhaled by setting
Dirt device can effectively absorb the dust of confined space, keep confined space cleaning dustless, and the dust of confined space is avoided to throw laser
Shadow interferes, and then improves display effect.
Preferably, the dust exhaust apparatus includes non-woven fabrics, Electrostatic Absorption felt and active carbon particle (being not drawn into figure).
The non-woven fabrics is the packed form to form non-woven bag, can be formed by suture way, in conjunction with existing mature technology, the work
Property charcoal particle be built in non-woven bag, Electrostatic Absorption felt setting in non-woven bag outer surface, active carbon particle with it is quiet
Electro Sorb felt all has good pick-up performance, and draws materials and be easy, at low cost.
As a kind of preferred technical solution, further includes several cushion blocks 10 being arranged between box body and shell, pass through
Increase and decrease the cushion block for adjusting the spacing between projection arrangement and projection screen, and then be convenient for the installation and debugging of box body, eliminates
Rigging error, conducive to the accurate projector distance adjusted between projection arrangement and projection screen.
As a kind of preferred technical solution, it is several fixture block 71 and elastic component 72 that the damping, which includes quantity,
The fixture block is fixed on the support, several fixture blocks surround between constitute constraint space is laterallyd secure to shell, when consolidating for shell
Surely locate rectangular, the quantity of preferably fixture block is at least four, and then constitute it is circumferential to shell laterally secure constraint space, into
And it effectively prevent shell that lateral displacement occurs, the fixed Stability and dependability of installation is improved, several described elastic components are set
It sets between shell and the joint face of support, preferably elastic component is spring, it is to be understood that by tight between shell and support
Fixing bolt is fixedly connected, and spring is between shell and support, the precompression of spring, can be according to installing object in shell and shell
Gross mass carry out reasonable set, in the case where support shakes, several springs can play the buffer function to shell,
To which the stability of the fixed reliability of directive property light source, projection arrangement and projection screen and image quality be effectively ensured, mention
High Projection Display effect.
As a kind of preferred technical solution, the directive property light source includes rectangular light guide plate 11 and light source group 12, described
The inner cavity of box body is arranged in rectangular light guide plate, and the outer wall of box body is arranged in the light source group.Preferably, the light source group includes the
One light source group, second light source group and third light source group, the first light source group, second light source group and third light source group respectively correspond
R, G, B tricolor laser, above-mentioned three colors laser light source do not limit, and are also possible to other three-color light sources.
As a kind of preferred technical solution, the projection arrangement includes the light out for being set in turn in the directive property light source
The display chip 21 and projection lens 22 at end, the light source and multi-angle of view figure of the directive property light source irradiation that the display chip will acquire
As being amplified after signal modulation by projection lens, the projection lens go out light end protrude from except box body, and with projection screen phase
It is corresponding.Specifically, by using RGB or other three-color light sources with special angle and position incidence on the projection screen, projection screen
Curtain forms identical optical output field preferably with the directive property projection screen of nanometer grating pixel, by directly to sharp
The spatial modulation of light projection light realizes colored 3D display, so that the direction-pointing function of multiple views is constituted, to improve naked eye 3D display effect
Fruit.
Above explanation and examples are merely exemplary, it is not intended to limit the scope of the present invention in any way.This field
Technical staff should be understood that without departing from the spirit and scope of the invention can details and shape to inventive technique scheme
Formula is modified or is replaced, but these modifications and replacement are fallen within the protection scope of the present invention.
Claims (10)
1. a kind of naked eye 3D display system suitable for laser projection, including directive property light source (1), projection arrangement (2) and projection screen
Curtain (3), it is characterised in that: the directive property light source is constituted to be directed toward to project with projection arrangement and be combined, and further includes support (4), shell
(5), box body (6), damping (7) and pump assembly (8):
The shell is fixedly connected by damping with support, and shell has the hollow cavity (52) of (51) open at one end；
The damping includes that quantity is several fixture block (71) and elastic component (72), and the fixture block is fixed on the support, if
Dry fixture block is constituted between surrounding to the constraint space that laterallys secure of shell, and shell and support is arranged in several described elastic components
Between joint face；
The box body is arranged in hollow cavity, and box body is for being fixedly mounted directive property light source and projection arrangement, box body, directive property
Light source constitutes projecting direction with projection arrangement and combines with the corresponding direction projection that is open；
It further include several cushion blocks (10) being arranged between box body and shell, by increasing and decreasing the cushion block for adjusting projection dress
Set the spacing between projection screen；
The projection screen is mounted on the opening, and the hollow cavity after installing projection screen constitutes confined space；
The pump assembly include setting on the support aspiration pump (81), the conduit that is arranged on shell and is connected to confined space
(82) and be arranged in conduit outlet section control valve (83) and pressure gauge (84), the air entry of the conduit and aspiration pump it is logical
Cross piping connection；
When work, projection screen is invested at the light end that goes out for being directed toward projection combination, and the front space of projection screen forms poly- viewpoint, with
Naked eye 3D display is obtained, confined space remains vacuum state, when the pressure value of pressure gauge is higher than vacuum state pressure value,
Control valve is opened, and pumping pump startup is evacuated outward, and when the pressure value of pressure gauge reaches vacuum state pressure value, control valve is closed,
Aspiration pump stops.
2. a kind of naked eye 3D display system suitable for laser projection according to claim 1, it is characterised in that: the shell
Be circumferentially with ring shield (501), between the ring shield and shell formed toroidal cavity (502).
3. a kind of naked eye 3D display system suitable for laser projection according to claim 2, it is characterised in that: in the ring
Be respectively equipped with air inlet (503) and venthole (504) on shape shield, the quantity of the venthole be it is multiple, and air inlet with go out
Stomata is connected with toroidal cavity.
4. a kind of naked eye 3D display system suitable for laser projection according to claim 3, it is characterised in that: further include setting
Cooling blower (9) on the support is set, the air outlet of the cooling blower is connect by connecting line with air inlet.
5. a kind of naked eye 3D display system suitable for laser projection according to claim 1, it is characterised in that: the pumping
Pump is cryogenic pump.
6. a kind of naked eye 3D display system suitable for laser projection according to claim 1, it is characterised in that: further include setting
Set the dust exhaust apparatus (101) in confined space.
7. a kind of naked eye 3D display system suitable for laser projection according to claim 6, it is characterised in that: the dust suction
Device includes non-woven fabrics, Electrostatic Absorption felt and active carbon particle, and the non-woven fabrics is the packed form to form non-woven bag,
The active carbon particle is built in non-woven bag, and the Electrostatic Absorption felt is arranged in non-woven bag outer surface.
8. a kind of naked eye 3D display system suitable for laser projection according to claim 1, it is characterised in that: the direction
Property light source includes rectangular light guide plate (11) and light source group (12), and the inner cavity of box body, the light source is arranged in the rectangular light guide plate
The outer wall of box body is arranged in group.
9. a kind of naked eye 3D display system suitable for laser projection according to claim 8, it is characterised in that: the light source
Group includes first light source group, second light source group and third light source group, the first light source group, second light source group and third light source group
Respectively correspond R, G, B tricolor laser.
10. a kind of naked eye 3D display system suitable for laser projection according to claim 1, it is characterised in that: the throwing
Image device includes the display chip (21) and projection lens (22) for going out light end for being set in turn in the directive property light source, described aobvious
Show that the light source for the directive property light source irradiation that chip will acquire is amplified with after multi-view image signal modulation by projection lens, the throwing
The light end that goes out of shadow camera lens protrudes from except box body, and corresponding with projection screen.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811068235.9A CN109143768A (en) | 2018-09-13 | 2018-09-13 | A kind of naked eye 3D display system suitable for laser projection |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811068235.9A CN109143768A (en) | 2018-09-13 | 2018-09-13 | A kind of naked eye 3D display system suitable for laser projection |
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| CN109143768A true CN109143768A (en) | 2019-01-04 |
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ID=64825229
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Application publication date: 20190104 |
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| RJ01 | Rejection of invention patent application after publication |