CN104635346B - It is three-dimensional naked regarding projection arrangement and display device - Google Patents
It is three-dimensional naked regarding projection arrangement and display device Download PDFInfo
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- CN104635346B CN104635346B CN201310559466.0A CN201310559466A CN104635346B CN 104635346 B CN104635346 B CN 104635346B CN 201310559466 A CN201310559466 A CN 201310559466A CN 104635346 B CN104635346 B CN 104635346B
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- light
- projection arrangement
- module
- closing
- closing light
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
- G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
- G02B30/26—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type
-
- 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
-
- 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
Abstract
The present invention provides a kind of three-dimensional naked regarding projection arrangement and display device, and projection arrangement includes light source module, optical scanning element, light transmitting element module, closing light component module, space optical modulator module and camera lens.Light source module provides light.Optical scanning element has actuation means and reflecting surface, and actuation means are able to deflecting reflecting face.Closing light component module includes the first closing light element.Space optical modulator module includes the first spatial optical modulation element.The normal vector copline of the normal vector of the incidence surface of first closing light element and the reflecting surface of the first spatial optical modulation element, and the plane is vertical with the plane set by projection arrangement.Light sequentially will be transferred to optical scanning element, light transmitting element module, closing light component module, space optical modulator module from light source module, and leave projection arrangement via camera lens.The present invention it is three-dimensional it is naked have that light path design is simple depending on projection arrangement, control mode simply, volume and the characteristics of weight reduction.
Description
Technical field
It is more particularly to a kind of three-dimensional naked regarding projection arrangement the present invention relates to a kind of Optical devices.
Background technology
In recent years, with the development of stereo display technique, this technology is arisen at the historic moment applied to various commercialized applications,
Such as three-dimensional film, stereotelevision etc..Stereo display technique is in a sequential, by the left-eye images and right eye of different visual angles
Image, is respectively sent to the left eye and right eye of audience, imitates the depth of field that human eye is produced by parallax, and watch observer
Stereopsis.
In addition, can also be according to whether needing to be aided with extra equipment and be divided into spectacle, helmet-type and three-dimensional naked regard display skill
Art.Directly naked eyes can just wherein be used by special anaglyph spectacles or the special helmet because being not required to depending on Display Technique so that solid is naked
Directly view and admire, and especially paid close attention to by industry.
Known solid is naked can be realized depending on projection arrangement by multiple projection arrangements of arranging in pairs or groups (can be set to projection arrangement array)
Right and left eyes are allowed to watch the purpose of different images.But such a design can make it that projection arrangement miniaturization is difficult, and couple each projection
The light path design of device also becomes complicated.Another design is then by the shadow of different angles by liquid-crystal switching element in different sequential
As sending right and left eyes to, though but such a design can reduce the volume of projection arrangement, if for example, be intended to provide 16 visual angles, must
Two sections of liquid crystal shutters of 4 grades of configuration, and the efficiency conversion proportion of each two liquid crystal shutter is about 90%, therefore opened by 4 liquid crystal
Guan Hou, actual conversion efficiency only wins 65.6%, therefore uses switch element more complicated except controlling, the efficiency of overall imaging also compared with
Difference.
In view of this, how will provide that a kind of light path design is simple, control mode is simple, conversion efficiency is preferable, volume with
And weight reduction is three-dimensional naked regarding projection arrangement, is for this industry urgent problem to be solved.
The content of the invention
In view of above-mentioned problem, it is a primary object of the present invention to provide that a kind of light path design is simple, control mode is simple,
Conversion efficiency preferably, volume and weight reduction it is three-dimensional naked regarding projection arrangement.
For up to above-mentioned purpose, the present invention provides a kind of three-dimensional naked regarding projection arrangement, and projection arrangement includes light source module, light
Scanning element, light transmitting element module, closing light component module, space optical modulator module and camera lens.
Light source module provides light.Optical scanning element has actuation means and reflecting surface, and actuation means are deflected
Reflecting surface.Closing light component module includes the first closing light element.Space optical modulator module includes the first spatial optical modulation element.First
The normal vector copline of the reflecting surface of the normal vector of the incidence surface of closing light element and the first spatial optical modulation element, and plane and throwing
Plane set by image device is vertical.
Light sequentially will be transferred to optical scanning element, light transmitting element module, closing light component module, space from light source module
Optical modulator module, and leave projection arrangement via camera lens.
In a preferred embodiment of the present invention, light source module is laser array or laser cell.
In a preferred embodiment of the present invention, in addition to even optical element, it is arranged between optical scanning element and light source module.
Light will sequentially be transferred to even optical element and optical scanning element.
In a preferred embodiment of the present invention, closing light component module also includes the second closing light element.Space optical modulator module
Also include second space optical modulation element and the 3rd spatial optical modulation element.
Light enters after second space optical modulation element and the 3rd spatial optical modulation element, is passed by the second closing light element
The first closing light element is handed to, and the light left by the second closing light element is equidirectional.
In a preferred embodiment of the present invention, optical scanning element can be voice coil motor, polygonal mirror or micro electronmechanical eyeglass.
In a preferred embodiment of the present invention, spatial optical modulation element is digital micro-mirror device or liquid crystal display device.
In a preferred embodiment of the present invention, the actuation means of optical scanning element make reflection deflecting facet not according to different sequential
Same angle, to form multiple different kens.
In a preferred embodiment of the present invention, closing light element is total reflection prism.
In a preferred embodiment of the present invention, light transmitting element module is speculum.
The present invention may also provide a display device, and display device includes foregoing any projection arrangement and display screen.
And projection arrangement is in forming multiple kens on display screen.
In a preferred embodiment of the present invention, display screen includes two-layer columnar lens.Two-layer columnar lens have two posts
Shape lens jacket and the omni-directional diffusion plate being sandwiched between the grade lens pillar layer.
The beneficial effects of the present invention are in summary, the present embodiment can be carried light source module by optical scanning element
On the light of confession, light to the space optical modulator module that different angles are transmitted according to different sequential, and then pass through known in substitution
Multiple light sources or switch element are implemented in the practice that different sequential produce the different kens, and to provide, a kind of light path design is simple, grasp
Prosecutor formula is simple, volume and weight reduction it is three-dimensional naked regarding projection arrangement.
Brief description of the drawings
Fig. 1 is the schematic diagram of the three-dimensional naked first embodiment regarding projection arrangement of the present invention.
Fig. 2 is the three-dimensional naked regarding projection arrangement imaging schematic diagram of Fig. 1.
Fig. 3 is the three-dimensional naked regarding the another imaging schematic diagram of projection arrangement of Fig. 1.
Fig. 4 is diagrammatic cross-sections of the Fig. 1 along AA tangent lines.
Fig. 5 is the three-dimensional naked regarding the another imaging schematic diagram of projection arrangement of Fig. 1.
Fig. 6 is display device schematic diagram of the invention.
Fig. 7 A are the schematic diagram of the three-dimensional naked second embodiment regarding projection arrangement of the present invention.
Fig. 7 B are the schematic diagram of Fig. 7 A three-dimensional naked side regarding projection arrangement.
Wherein, description of reference numerals is as follows：
1、1a：Projection arrangement
10：Light source module
11：Even optical element
12：Optical scanning element
121：Actuation means
122：Reflecting surface
13：Light transmitting element module
14：Closing light component module
141：First closing light element
141A：Incidence surface
142：Second closing light element
15：Space optical modulator module
151：First spatial optical modulation element
152：Second space optical modulation element
153：3rd spatial optical modulation element
151A：Reflecting surface
16：Camera lens
2：Display screen
21、23：Lens pillar layer
22：Omni-directional diffusion plate
3：Display device
AA：Hatching
B：The areas imaging of known spatial light pod may
B’：Areas imaging
C：Region
P：Plane
V1、V2：Normal vector
Embodiment
Hereinafter with reference to relevant drawings, illustrate three-dimensional naked regarding projection arrangement and aobvious according to one kind of present pre-ferred embodiments
Showing device, wherein identical element will be illustrated with identical reference marks.
Meanwhile, in following examples and accompanying drawing, had been omitted from and not shown to the indirect related element of the present invention；And it is attached
The size relationship of each interelement is only and asks to be readily understood by figure, is not used to limit actual ratio.
Projection arrangement illustrated herein can be optical digital computing (Digital Light Processing；DLP)
The projection display or liquid crystal projection apparatus (Liquid Crystal Display；), or monocrystalline liquid crystal on silicon displays LCD
The equipment that (Liquid Crystal On Silicon System, LCOS System) etc. has projection display funciton.
Fig. 1 to Fig. 5 is please refer to, Fig. 1 is the schematic diagram of the three-dimensional naked first embodiment regarding projection arrangement of the present invention.Figure
2 be the three-dimensional naked regarding projection arrangement imaging schematic diagram of Fig. 1.Fig. 3, Fig. 5 are the three-dimensional naked regarding the another imaging signal of projection arrangement of Fig. 1
Figure.Fig. 4 is diagrammatic cross-sections of the Fig. 1 along AA tangent lines.
The projection arrangement 1 of the present embodiment at least include light source module 10, optical scanning element 12, light transmitting element module 13,
Closing light component module 14, space optical modulator module 15 and camera lens 16.Light sequentially will be transferred to optical scanning from light source module 10
Element 12, light transmitting element module 13, closing light component module 14, space optical modulator module 15, and leave projection via camera lens 16
Device 1.
Light source module 10 is arranged at the side of optical scanning element 12, and light source module 10 can provide light.And light source module 10
Can be laser array or laser cell.
In addition, the present embodiment may also include even optical element 11 so that light can be homogenized to be formed after a strip-shaped light source again
Into optical scanning element 12, even optical element 11 may be disposed between optical scanning element 12 and light source module 10.Light will be passed sequentially
It is handed to even optical element 11 and optical scanning element 12." even optical element " referred to herein can be integration rod (integration
) or optical channel (light tunnel) rod.
Optical scanning element 12 has actuation means 121 and reflecting surface 122, and actuation means 121 are able to deflecting reflecting face
122.Wherein, the optical scanning element 12 of the present embodiment can be voice coil motor (voice coil motor), polygonal mirror (Polygon
) or micro electronmechanical (MEMS) eyeglass or these combination etc. are constituted mirror.
And the voice coil motor of the present embodiment can be current mirror (galvano mirror), current mirror, which may also include, is arranged at magnetic
The moving coil (not shown) of field.And the electromagnetic force that can be produced by size of current rotates moving coil and drives axis of rotation, and
Deflect the speculum of connection rotating shaft.If in short, optical scanning element 12 is current mirror, the electric current of control electric current mirror can be passed through
Size is to adjust the angle of speculum.
In addition, the deflectable angle of reflecting surface 122 of the present embodiment is 20 degree~-20 degree, if being intended to the institute of light source module 10
The strip light of offer, is projected to the strip-shaped light source of 16 different angles, then reflecting surface each deflectable 2.5 in different sequential
Degree.But herein also can cutting be 32 different angles, to form 32 kens, in other words, angular distribution herein will be with the ken
Quantity demand has been adjusted, and is not limitation with 16 described here.
Brought forward, the actuation means 121 of optical scanning element 12 can make reflecting surface 122 deflect different angles according to different sequential,
To form multiple different kens.So that the light from light source module 10 in X-Y coordinate plane can be to (figure on Y-Z coordinate planes
2), it is scanned and is imaged in the Y direction.
Light transmitting element module 13 is speculum, and is arranged between closing light component module 14 and optical scanning element 12.And
The light transmitting element module 13 of the present embodiment presss from both sides 45 degree of angles with optical scanning element 12, therefore light is delivered to conjunction from optical scanning element 12
Optical element module 14 is deflected 90 degree, and can image on X-Z coordinate planes (Fig. 2).
Closing light component module 14 may include the first closing light element 141, and the first closing light element 141 can be total reflection prism.
The light that incidence angle can be more than preset angle (such as 40 degree) by the first closing light element 141 reflects, and causes incidence angle is less than default
The light penetration at angle.Therefore, the light transmitted from light transmitting element module 13 will be reflected and be passed to space light modulation
Module 15.
As can be seen from Figure 3, light can be imaged from the X-Z coordinate planes (coordinate on the right side of drawing) of the first closing light element 141
To X-Y coordinate plane (coordinate on the left of drawing), and the first closing light element 141 is passed to again, now the incidence angle meeting of light
Less than predetermined angle, therefore the first closing light element 141 will be penetrated, the region C that drawing is drawn be into the first closing light element 141 and
The incident area of projection lens can be passed to.The region C that this place is drawn is that can penetrate the angle of the first closing light element 141
(incident angle be less than predetermined angle), will reflect that (incident angle is more than preset angle if the part beyond the C of region is imaged in
Degree).
Space optical modulator module 15 includes the first spatial optical modulation element 151.First spatial optical modulation element 151 is numeral
Micro-mirror device (digital micromirror device；) or liquid crystal display device (liquid crystal display DMD
device；LCD device).
For example, if the first spatial optical modulation element 151 is digital micro-mirror device, the deflection model of digital micro-mirror device
Enclose and spend (within Fig. 5 is using the known areas imaging of dotted line B signs as 24 degree) for 12~-12, to switch control or the incident light of modulation
Line.Herein when digital micro-mirror device is opening, the light transmitted from the first closing light element 141 will be reflected into again
Enter the first closing light element 141, and display screen 2 is imaged in into camera lens 16.If conversely, closed mode, first from the first closing light
The light that part 141 is transmitted will not be then imaged on display screen.
Please with particular reference to Fig. 4, the incidence surface 141A of the first closing light element 141 of the present embodiment normal vector V1It is empty with first
Between optical modulation element 151 reflecting surface 151A normal vector V2Copline, and this plane and the plane P set by projection arrangement 1
Vertically.
Still further, it is in please also refer to Fig. 2 and Fig. 5 and known projection arrangement difference in the present embodiment
The first closing light element 141 and the first spatial optical modulation element 151 be equidirectional, rather than such as the first closing light of known projection arrangement
The configuration at 45 degree of angles is presented in the spatial optical modulation element 151 of element 141 and first.The present embodiment is using the advantage of such a configuration
By the areas imaging B of known spatial light pod may be expanded into B ' (by DMD be spatial optical modulation element exemplified by, imageable angle
40 degree will be expanded into by 24 degree), therefore the etendue (product of area and solid angle) of optical projection system entire light can be increased, obtain
Larger light quantity and more multiple kens formed, and image in display screen 2.
Fig. 6 is refer to, it is display device schematic diagram of the invention.
The present embodiment is display device 3, and display device 3 includes foregoing projection arrangement 1 and display screen 2.And projection
Device 1 can form multiple kens on display screen 2, allow observer's right and left eyes that the adjacent ken, shape can be respectively seen to realize
Into parallax and watch the purpose of stereopsis.
Supplementary notes, Fig. 6 illustrates for convenience, only illustrate the first spatial optical modulation element 151 of projection arrangement 1 with
And camera lens 16 both relativeness, and non-actual disposition, only for conveniently understanding the imaging of projection arrangement 1 and display screen 2
Relation and take such a drafting.
In addition, the display screen 2 of the present embodiment also includes two-layer columnar lens.Two-layer columnar lens have two lens pillars
Layer 21,23 and the omni-directional diffusion plate 22 being sandwiched between described two lens pillar layers (double lenticular lens)
(diffuser).Specifically, the light left from projection arrangement 1, it will collected and be first imaged to complete by lens pillar layer 21
To diffuser plate 22, after pass through lens pillar 23 re-imaging of layer again to the ken plane at the place of user.
And, lens pillar herein layer 21,23 is with made by the transparent material of high index of refraction, such as being ultraviolet
Hardening resin, thermosetting resin or plastic cement.And two the protuberance of lens pillar layer 21,23 be shaped as circular, ellipse, triangle
Shape or square geometry etc..
Supplementary notes be drawing draw two lens pillars layer 21,23 and omni-directional diffusion plate 22 protuberance song
Rate, the distance of each element are all to illustrate, and during practical application, the distance that projection arrangement 1 and display screen 2 must be all contemplated has been adjusted
It is whole.
Finally, Fig. 7 A and 7B are refer to, it is respectively the three-dimensional naked second embodiment regarding projection arrangement of the present invention
Schematic diagram and its side schematic view.
It is that the projection arrangement 1a of the present embodiment may be used also with the projection arrangement deviation of first embodiment (Fig. 1) one chip
It is the optical digital computing projection display of three-chip type.
The closing light component module 14 of the present embodiment may also include the second closing light in addition to including the first closing light element 141
Element 142.Similarly, the second closing light element 142 can be total reflection prism.
In addition, the space optical modulator module 15 of the present embodiment may be used also in addition to including the first spatial optical modulation element 151
Including the spatial optical modulation element 153 of second space optical modulation element 152 and the 3rd.Similarly, second space optical modulation element
152 and the 3rd spatial optical modulation element 153 can be digital micro-mirror device or liquid crystal display device.
The light that light source module 10 is provided will sequentially be transferred to optical scanning element 12, light transmitting element module 13, closing light
Component module 14, space optical modulator module 15, and leave projection arrangement 1 via camera lens 16.
Specifically, light will be passed by the first closing light element 141 and the second closing light element 142 of closing light component module 14
Deliver to the first spatial optical modulation element 151, second space optical modulation element 152 and the (foundation of the 3rd spatial optical modulation element 153
The situation that different incidence angles is coupled with closing light component module).Then, light enters the first spatial optical modulation element 151, second
After the spatial optical modulation element 153 of spatial optical modulation element 152 and the 3rd, light be able to by those spatial optical modulation elements 151,
152nd, 153 reflection, and be again introduced into the second closing light element 142, and the first closing light element is transferred to by the second closing light element 142
141。
In addition, the light left by the second closing light element 142 is equidirectional.In short, the first spatial optical modulation element
151st, the spatial optical modulation element 153 of second space optical modulation element 152 and the 3rd reflects and enters the second closing light element 142
Light with equidirectional entrance camera lens 16 and display screen 2 will be imaged in.
The Matching Relation of the spatial optical modulation element 153 of second space optical modulation element 152 and the 3rd and remaining element with
First spatial optical modulation element 151 is similar, therefore will not be described in great detail.
In summary, the light that the present embodiment can be provided light source module by optical scanning element, according to it is different when
Sequence is transmitted on light to the space optical modulator module of different angles, and then is realized known in substitution by multiple light sources or switch element
The practice of the different kens is produced in different sequential, to provide that a kind of light path design is simple, control mode is simple, volume and weight
Reduction it is three-dimensional it is naked regard projection arrangement.
Illustrative is the foregoing is only, rather than is restricted person.Any spirit and scope without departing from the present invention, and to it
The equivalent modifications of progress or change, are intended to be limited solely by scope of the appended claims.
Claims (10)
1. it is a kind of three-dimensional naked regarding projection arrangement, including：
There is provided a light for one light source module；
One optical scanning element, with an actuation means and a reflecting surface, the wherein actuation means are able to deflect the reflecting surface；
One smooth transmitting element module；
One closing light component module, including：
One first closing light element；
One space optical modulator module, including：
One first spatial optical modulation element, the wherein normal vector of an incidence surface of the first closing light element are adjusted with first spatial light
The normal vector copline of one reflecting surface of element processed, and the plane is vertical with the plane set by the projection arrangement；
One camera lens；And
One even optical element, is arranged between the optical scanning element and the light source module, and the light is sequentially transferred to the even light member
Part and the optical scanning element；
Wherein, the light is sequentially transferred to the even optical element, the optical scanning element, the light transmitting element mould from the light source module
Block, the closing light component module, the space optical modulator module, and leave the projection arrangement via the camera lens；
Wherein, the actuation means can make the different angles of the reflection deflecting facet according to different sequential, to form multiple differences
The ken so that the light in X-Y coordinate plane is reached on Y-Z coordinate planes, and in Y-direction be scanned and into
Picture, the light is delivered to the closing light component module from the optical scanning element and is deflected 90 degree, and it is flat to image in X-Z coordinates
On face.
2. as claimed in claim 1 three-dimensional naked regarding projection arrangement, the wherein light source module is a laser array or a laser list
Member.
3. it is as claimed in claim 1 three-dimensional naked regarding projection arrangement, wherein the closing light component module, in addition to one second closing light member
Part, the space optical modulator module also includes a second space optical modulation element and one the 3rd spatial optical modulation element, wherein, should
Light enters after the second space optical modulation element and the 3rd spatial optical modulation element, is transmitted by the second closing light element
To the first closing light element, and the light left by the second closing light element is equidirectional.
4. as claimed in claim 1 three-dimensional naked regarding projection arrangement, the wherein optical scanning element is voice coil motor, polygonal mirror or micro-
Electromechanical eyeglass.
5. three-dimensional naked regarding projection arrangement as described in claim 1 or 3, the wherein spatial optical modulation element is that a digital micro-mirror is filled
Put or a liquid crystal display device.
6. the three-dimensional naked actuation means foundation difference for regarding projection arrangement, wherein the optical scanning element as claimed in claim 1
Sequential makes the different angles of the reflection deflecting facet, to form multiple different kens.
7. three-dimensional naked regarding projection arrangement as described in claim 1 or 3, the wherein closing light element is a total reflection prism.
8. as claimed in claim 1 three-dimensional naked regarding projection arrangement, the wherein light transmitting element module is a speculum.
9. a kind of display device, including：
It is three-dimensional naked regarding projection arrangement as described in claim 1 to 8 is any；And
One display screen；
Wherein, the solid it is naked depending on projection arrangement in forming multiple kens on the display screen.
10. display device as claimed in claim 9, the wherein display screen include pair of lamina lens pillar, the two-layer columnar
Lens are sandwiched in the omni-directional diffusion plate between described two lens pillars layers with two lens pillars layer and one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310559466.0A CN104635346B (en) | 2013-11-12 | 2013-11-12 | It is three-dimensional naked regarding projection arrangement and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310559466.0A CN104635346B (en) | 2013-11-12 | 2013-11-12 | It is three-dimensional naked regarding projection arrangement and display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104635346A CN104635346A (en) | 2015-05-20 |
| CN104635346B true CN104635346B (en) | 2017-08-04 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1976303A1 (en) * | 2007-03-31 | 2008-10-01 | Sony Deutschland Gmbh | Image generating apparatus |
| EP2015589A1 (en) * | 2007-07-13 | 2009-01-14 | Barco NV | Stereo display system with scanning of light valves |
| KR101807691B1 (en) * | 2011-01-11 | 2017-12-12 | 삼성전자주식회사 | Three-dimensional image display apparatus |
| CN103163719B (en) * | 2011-12-09 | 2016-06-01 | 台达电子工业股份有限公司 | 3 d display device |
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