CN1867852A - Two dimensional optical scanning apparatus and image display apparatus using the same - Google Patents
Two dimensional optical scanning apparatus and image display apparatus using the same Download PDFInfo
- Publication number
- CN1867852A CN1867852A CNA2004800304656A CN200480030465A CN1867852A CN 1867852 A CN1867852 A CN 1867852A CN A2004800304656 A CNA2004800304656 A CN A2004800304656A CN 200480030465 A CN200480030465 A CN 200480030465A CN 1867852 A CN1867852 A CN 1867852A
- Authority
- CN
- China
- Prior art keywords
- light
- optical scanning
- dimensional optical
- scanning device
- linear light
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
- G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
- G02B26/10—Scanning systems
- G02B26/12—Scanning systems using multifaceted mirrors
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3129—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] scanning a light beam on the display screen
- H04N9/3132—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] scanning a light beam on the display screen using one-dimensional electronic spatial light modulators
-
- 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
- G03B21/005—Projectors using an electronic spatial light modulator but not peculiar thereto
- G03B21/006—Projectors using an electronic spatial light modulator but not peculiar thereto using LCD's
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/74—Projection arrangements for image reproduction, e.g. using eidophor
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3141—Constructional details thereof
- H04N9/3147—Multi-projection systems
Abstract
A two-dimensional optical scanning apparatus has a rotating body or a moving body that rotates endlessly. The apparatus has at least two linear light source units. The rotating body may be formed in a shape of a cylindrical drum. The moving body may have at least two cylindrical drums and an endless belt connected between the drums. Each linear light source unit is displaced on the rotating body or moving body to alternately project images with each other. The apparatus projects light in several directions so it is used in an image display apparatus with a plurality of screens.
Description
Technical field
The image display device that the present invention relates to a kind of two dimensional optical scanning device and use this device, more specifically, the image display device that relates to a kind of two dimensional optical scanning device and use this device, wherein linear light sorurce rotation or move with scanning light beam two-dimensionally.
Background technology
Recently, the widescreen image display device is widely popular.The widescreen image display device can be divided into Direct observation type (such as CRT equipment), projection type (such as LCD equipment) and optical scanning-type.
The CRT equipment of Direct observation type its phosphorescent surface by red/produce coloured image when green/blue beam triggers.For CRT equipment, require electron beam between electron gun and phosphorescent surface, to have big stroke distances, this makes the CRT equipment volume big and heavy.Therefore, CRT equipment is unsuitable for the widescreen image display device.
The LCD projector of projection type has the little advantage of size, but its shortcoming is that it requires to adopt polarizer, and this can cause light loss.
The optical scanning-type image display device proposes in No. 0366155, the Korean Patent that licenses to applicant of the present invention.Because adopted the polygon mirror of two rotations to come scanning ray on two dimension in above-mentioned patent, the size of overall optical scanner is relatively large.Because the reflecting surface of the polygon mirror of these two rotations is around rotation rotation separately, its relative optical axis displacement departs from.In addition, the shortcoming of this device is, enters the polygon mirror that needs to have large mirror under the situation of this polygon mirror at the incident ray of big incident angle.
Summary of the invention
In view of above-mentioned prior art, one object of the present invention is the image display device that a kind of two dimensional optical scanning device is provided and uses this device, wherein linear light sorurce self rotation or move with scanning light beam two-dimensionally, and need not any polygon mirror.
Another object of the present invention is to provide a kind of image display device, its use a light scanning apparatus and on a plurality of screens display image.
In order to realize these and other purpose, two dimensional optical scanning device according to a first aspect of the invention comprises a rotary body and at least two lip-deep linear light units that are arranged on this rotary body.Each linear light sorurce comprises a plurality of light-emitting components, and these light-emitting components set ruddiness, green glow and the blue light of modulating according to the image that will show with emission in a row.This rotary body be shaped as a rotatingcylindrical drum.
According to a second aspect of the invention, a kind of two dimensional optical scanning device comprises movable body and at least two linear light units that are arranged on this movable body of circulation rotation.Each light source comprises a plurality of light-emitting components, and these light-emitting components set ruddiness, green glow and the blue light of modulating according to the image that will show with emission in a row.This movable body has at least two rotatingcylindrical drums and is connected endless belt or chain between the described cylinder.
According to a third aspect of the invention we, a kind of image display device comprises rotary body, at least two lip-deep linear light unit and at least one screens that are arranged on this rotary body, and the light beam that is scanned is incident upon on this screen.
According to a third aspect of the invention we, a kind of image display device comprises movable body, at least two linear light unit and at least one screens that are arranged on this movable body of circulation rotation, and the light beam that is scanned is incident upon on this screen.
When using two or more screen, each screen is each other along the different directions setting.
Description of drawings
Fig. 1 and Fig. 2 illustrate the schematic perspective view and the side view of the two dimensional optical scanning device of first embodiment of the invention;
Show to Fig. 3 illustrative the view of line source unit;
Fig. 4 illustrates the view of explanation collimator lens;
Fig. 5 illustrates the view of explanation prism wedge;
Fig. 6 illustrates another embodiment of first embodiment;
Fig. 7 illustrates the schematic side elevation of two dimensional optical scanning device second embodiment of the invention;
Fig. 8 illustrates another example of second embodiment;
Fig. 9 illustrates the view of explanation according to variation sweep time of the two dimensional optical scanning device of first embodiment of the invention; And
Figure 10 illustrates another embodiment of the image display device that has screen, and it has used fibre-optic bundle.
Embodiment
Describe preferred implementation of the present invention with reference to the accompanying drawings in detail, wherein indicate components identical with identical reference number in the full text.
At first see figures.1.and.2, the two dimensional optical scanning device 10 of first embodiment of the invention comprises by the linear light unit (first linear light unit 100 and second linear light unit 100 ') on the rotatingcylindrical drum 300 of motor (not shown) rotation and two cylindrical surfaces that are arranged on this cylinder 300.
Each linear light unit 100,100 ' all preferably has a plurality of light-emitting components 110---and such as laser diode or light emitting diode (LED), these light-emitting components set ruddiness, green glow and the blue light of modulating according to the image that will show with emission in a row.Linear light unit 100 can have into the light-emitting component 110 that a row is provided with, shown in Fig. 3 a.Can have also that two row or multi-row are made of a plurality of light-emitting components and the array that forms, to obtain high resolution capacity or high brightness, shown in Fig. 3 b.
In order to maximize the intensity efficiency of sending from each luminaire, can use as shown in Figure 5 prism wedge 210 or wedge shape reflecting surface.Prism wedge 210 has the reflecting surface 211 of inclination, the total reflection surface 212 that is parallel to optical axis and lens surface 213.When lens surface 213 adjustable light, can omit independent collimator lens unit 200.Send reflecting surface 211 reflections of light that equipment 110 sends from each light, repeatedly strengthen optical efficiency in inside by total reflection surface 212 reflections then with the angle of divergence that reduces each secondary reflection from tilting.
Each light-emitting component 110 of linear light sorurce can have a collimator lens, and this collimator lens light of self-emission device 110 in the future converts collimated light beam to.This collimator lens can be the array of a small rod lens 120 and/or sphere lens 130, or a non-spherical lens, as is shown among Fig. 4 A-4C.The lens of arbitrary type and a cylindrical lens (or toric lens) in can adopting shown in Fig. 4 A-4C.
Can construct each light-emitting component with the light beam that light is converted to convergence, disperses or collimate by on a LED crystal grain, forming a poured with epoxy resin lens surface.This lens surface can be spherical face or non-spherical surface, comprises flute card egg-shaped face.
Light-emitting component can be the LED of surface emitting type.When adopting surface emitting type LED, preferred plating film on the surface except that emitting surface on the LED is to advance the light reflection and to limit emitting area in inside by this metal film.Because surface emitting type LED is from the surface emitting light of its sidepiece and effective layer, when using external optical element, the light of launching is converted to effective collimated light beam or convergent beam and obtains high optical efficiency is difficult.Therefore, the whole optical system of this device can be made to such an extent that promptly can strengthen optical property simply again, thereby limits emitting area by this metal film.
Although Fig. 1 and Fig. 2 show two linear light units 100 and 100 ', also can provide a plurality of these light source cells according to required design.When the quantity of linear light unit was n, each light source cell became the angle setting of 360 degree/n around the rotating shaft relative proximity unit of cylinder.Linear light unit 100 and 100 ' shaft parallel setting with respect to cylinder.
Two dimensional optical scanning device according to first embodiment of the invention is operated as follows.
When swing roller 300 began to rotate, first and second linear light units 100,100 ' are rotation on the rotatingcylindrical drum 300 of rotation.When first linear light unit 100 at first during screen-oriented 500, from the light of first linear light unit, 100 emissions in screen 500 scannings.Then, when second linear light unit, 100 ' screen-oriented 500, from the light of second linear light unit 100 ' emission in screen 500 scannings.Therefore, first and second linear light units 100 and 100 ' rotation and projected image alternately each other.
Though not shown in the accompanying drawings, can between linear light unit 100 and screen 500, place suitable optical element and come compensate for chromatic aberration, to strengthen the scaling of picture quality or adjusting screen---such as amplifying and dwindling.
Use the image display device of two-dimension optical scanister 10 to have a screen 500, as depicted in figs. 1 and 2.Also can use two screens 500 and 500 ', as shown in Figure 6.Can design this image display device to change the quantity and the layout thereof of screen according to required purpose.Should be noted that each screen all can show a different image.Can provide two or more light source cells according to required design.
When linear light unit 100 is installed on the rotary body 300 and during with the Constant Angular Velocity scan light, picture quality and resolution characteristic change according to the distance of flat screen 500 apart from optical axis.Can change the launch time of linear light unit according to scanning angle, to obtain the uniform image quality on screen 500.With reference to Fig. 9, will be described launch time that depend on scanning angle.
At first, the optical axis of supposing scanning element is that z axle and screen 500 are parallel to the placement of x axle, as shown in Figure 3.The average pixel dimension D x of screen is as giving a definition:
Dx＝Ltanθ
max/k (1)
Wherein L is a scanning distance, θ
MaxBe maximum scan angle, and (2k+1) be the maximum line number of pixel.
Work as θ
iAnd θ
I+1When being respectively the scan angle of capable and (i+1) row of i, by the some X of light on screen of scanning element 300 reflection
iPlace scanning is then at the some X of next line
I+1Last scanning.Poor X between two points
i-X
I+1Should be average pixel dimension D x, to keep uniform resolution characteristic.Because the pixel size Dx of the screen arbitrfary point on whole screen should be constant, it is defined as follows:
X
i-X
i+1＝L(tanθ
i-tanθ
i+1)＝Dx (2)
Therefore, can obtain condition (3) from condition (1) and (2):
tanθ
max/k＝(tanθ
i-tanθ
i+1) (3)
When the polygon mirror of rotation during with the rotation of the relatively-stationary light source of Constant Angular Velocity ω, the trace interval Δ t between capable and (i+1) row of i can be defined by following condition (4):
Δt＝(θ
i-θ
i+1)/2ω (4)
Therefore, the trace interval Δ t between capable and (i+1) row of i can be by condition (3) and (4) acquisition.The light of launching from linear light unit 100 scans two-dimensionally by the rotation of rotary body 300, with display image on screen.And, each scan angle is come, say and can change launch time, on screen 500, to obtain uniform pixel size Dx according to condition (3) and (4).Therefore, picture quality on whole screen and resolution characteristic are uniform.
Except changing launch time, also can use the prism block that is used to compensate the pixel size deviation, to obtain uniform image quality and resolution characteristic.As shown in figure 10, a branch of optical fiber can be placed on the screen 500 to obtain uniform image quality and resolution characteristic.
Below with reference to Fig. 7, comprise according to the two dimensional optical scanning device 10 of second embodiment of the invention: first and second rotatingcylindrical drums 310 and 310 '---each cylinder is by a motor (not shown) rotation; And be connected in described cylinder 310, the endless belt 330 between 310 '.This device has two linear light units (first linear light unit 100 and second linear light unit 100 ') that are placed on this endless belt 330.Although be with 330 to be connected between two cylinders 310 and 310 ' in the drawings, also can use these two cylinders of connection such as endless chain.Also can use linear motor to move this linear light unit.
Each linear light unit 100,100 ' preferably has a plurality of light-emitting components, and such as laser diode or light emitting diode (LED), these light-emitting components are arranged to ruddiness, green glow and the blue light that a row modulates according to the image that will show with emission.As above illustrated, can adopt multiple linear luminescence unit, with reference to the Fig. 3 to Fig. 5 in first embodiment.
Although Fig. 7 shows two linear light units 100 and 100 ', also can provide plural a plurality of light source cell according to required design.When the quantity of linear light unit is n and when being s with 330 length, each light source cell relative proximity unit is disposed on the distance of s/n and is with on 330.Linear light unit 100 and 100 ' is parallel to cylinder 310,310 ' rotating shaft setting.
Fig. 7 shows two cylinders 310 and 310 ', but this number is not limited to shown in the figure.Can provide plural a plurality of rotatingcylindrical drum according to required design.
The following operation of two dimensional optical scanning device according to second embodiment of the invention.
With with 330 cylinders 310 that are connected with same angular velocity rotation, between 310 ', and cycle rotation.First and second linear light units 100,100 ' are arranged on on 300 and rotate according to the rotation with 330.When first linear light unit 100 at first during screen-oriented 500, from the light of first linear light unit, 100 emissions in screen 500 scannings.Then, when second linear light unit, 200 screen-orienteds 500, from the light of second linear light unit 100 ' emission in screen 500 scannings.Therefore, first and second linear light units 100 and 100 ' each other rotations and alternately projects images.
When cylinder rotates with Constant Angular Velocity, move with constant line movement velocity with 330.Linear velocity is L * m per second, and wherein the screen length along the direction of scanning is " L ", and the number of image frames of per second is " m ".In addition, when the radius of cylinder 300 is " r " and angular velocity during for " ω ", linear velocity v is as follows:
v＝ω×r＝L×m。
When the angular velocity omega of cylinder was constant, linear velocity v was also constant, thereby kept uniform sweep time.When this device uses the section of linear movement, can adopt linear motor to replace band and cylinder.
Although not shown in the drawings, come compensate for chromatic aberration can between linear light unit 100 and screen 500, suitable optical element is set, to strengthen the scaling of picture quality or adjusting screen---such as amplifying and dwindling.
Use the image display device of the two-dimension optical scanister 10 of second embodiment to have a screen 500, as shown in Figure 7.Also can use two or more screens according to required purpose.
Fig. 8 illustrates the image display device that uses three screens.This image display device has a two dimensional optical scanning device 10, and this light scanning apparatus 10 comprises three rotatingcylindrical drums 310,310 ', 310 " and be connected endless belt 330 between these cylinders.A plurality of linear light units 100,100 ', 100 can be set " on this endless belt 330.Fig. 8 shows three linear light units 100,100 ', 100 " and three screens 500,500 ', 500 ".According to required purpose, can design this image display device with change number of screen, type (transmission-type or reflection-type) with and arrange.Should be noted that each screen can be provided with different images.
In addition, in the two-dimensional device according to second embodiment, linear light unit can linear movement or is rotatablely moved.Therefore, the scalable linear light unit only makes it when its linear movement or only luminous when it rotatablely moves, thereby produces multiple scanning effect.
As mentioned above, the advantage of this two dimensional optical scanning device is owing to use the rotary body or the movable body of circulation rotation, and do not use polygon mirror avoid comprising since polygon mirror produce optical aberration---comprise distortion, its size is less than existing apparatus.In addition, can avoid the difficult design of being brought from the axle deviation of polygon mirror.
In addition, can multiple light source constructed according to the invention.Because this device can carry out photoscanning in enlarged image, the present invention can be suitable for the large-screen image display device.
Have two or more image display devices according to light scanning apparatus of the present invention can show have multiple display effect, be applied to the complicated image in the multiple application.
Although the present invention thinks the most feasible and preferred embodiment is described in conjunction with current, be appreciated that, the present invention is limited to disclosed embodiment, and is to be intended to contain various modifications included in the spirit and scope of the appended claims and be equal to setting on the contrary.Particularly, be to be noted that the structure of in the present invention's first and second embodiments, describing, the rotary body or the movable body of linear light unit be installed on it can also multiple mode be made amendment.
Claims
(according to the modification of the 19th of treaty)
1. two dimensional optical scanning device comprises:
A rotary body; And
At least two lip-deep linear light units that are arranged on this rotary body, described linear light unit comprises a plurality of light-emitting components, these light-emitting components set in a row, in order to send ruddiness, green glow and the blue light of modulating according to the image that will show.
2. as two dimensional optical scanning device as described in requiring 1, wherein, described rotary body be shaped as a rotatingcylindrical drum.
3. as two dimensional optical scanning device as described in requiring 2, wherein, when the quantity of described linear light unit was n, each linear light unit became the angle setting of 360/n degree with respect to adjacent unit on the surface of rotary body.
4. two dimensional optical scanning device comprises:
The movable body of a circulation rotation; With
At least two linear light units that are arranged on this movable body, described linear light unit comprises a plurality of light-emitting components, these light-emitting components set in a row, in order to send ruddiness, green glow and the blue light of modulating according to the image that will show.
5. two dimensional optical scanning device as claimed in claim 4, wherein, described movable body comprises:
At least two rotatingcylindrical drums; And
Be connected in endless belt or chain between the described cylinder.
6. two dimensional optical scanning device as claimed in claim 5, wherein, when the quantity of described linear light unit is the length of n and chain or band when being s, each light source cell is disposed on band or the chain with respect to the distance of adjacent unit with s/n.
7. two dimensional optical scanning device as claimed in claim 4, wherein, this device has a linear segments, and at this linear segments place, the linear light unit on the described movable body moves point-blank.
8. two dimensional optical scanning device as claimed in claim 1, wherein, described linear light unit is substantially parallel with the rotating shaft of described rotary body.
9. two dimensional optical scanning device as claimed in claim 4, wherein, described linear light unit is basically perpendicular to the direction of motion of described movable body.
10. two dimensional optical scanning device as claimed in claim 1, further comprise collimation lens or converging optical element, the light that this collimation lens is used for coming from the light-emitting component of each linear light unit is transformed into the light beam of basic collimation, and the light that described converging optical element is used for coming from each light-emitting component is transformed into convergent beam.
11. two dimensional optical scanning device as claimed in claim 4, further comprise collimation lens or converging optical element, the light that this collimation lens is used for coming from the light-emitting component of each linear light unit is transformed into the light beam of basic collimation, and the light that described converging optical element is used for coming from each light-emitting component is transformed into convergent beam.
12. two dimensional optical scanning device as claimed in claim 4, wherein, each light-emitting component comprises a LED crystal particle and a poured with epoxy resin spare, and this poured with epoxy resin spare has the light emission surface of sphere shape or aspheric surface shape, thereby plays the function of lens.
13. two dimensional optical scanning device as claimed in claim 1, wherein, each light-emitting component is the light emitting diode of surface emitting type, and its surface all is coated with metal film except presumptive area.
14. two dimensional optical scanning device as claimed in claim 1, wherein, as the maximum scan angle θ of scanning element
MaxWhen being split up into predetermined resolution, linear light unit is i scan angle theta
iWith (i+1) individual scan angle theta
I+1Between luminous time interval Δ t satisfy following condition:
Tan θ
Max=k (tan θ
i-tan θ
I+1) and
Δt＝(θ
i-θ
i+1)/2ω
Wherein, (2k+1) be the maximum line number of pixel;
θ
I+1It is the scan angle of (i+1) row; And
ω is the angular velocity of scanning element.
15. two dimensional optical scanning device as claimed in claim 4, wherein, as the maximum scan angle θ of scanning element
MaxWhen being split up into predetermined resolution, linear light unit is i scan angle theta
iWith (i+1) individual scan angle theta
I+1Between luminous time interval Δ t satisfy following condition:
Tan θ
Max=k (tan θ
i-tan θ
I+1) and
Δt＝(θ
i-θ
i+1)/2ω
Wherein, (2k+1) be the maximum line number of pixel;
θ
I+1It is the scan angle of (i+1) row; And
ω is the angular velocity of scanning element.
16. an image display device comprises:
Rotary body;
At least two lip-deep linear light units that are arranged on this rotary body, described linear light unit comprises a plurality of light-emitting components, these light-emitting components set in a row, in order to send ruddiness, green glow and the blue light of modulating according to the image that will show; And
At least one screen, the light beam that is scanned is incident upon on this screen.
17. an image display device comprises:
The movable body of circulation rotation;
At least two linear light units that are arranged on this movable body, described linear light unit comprises a plurality of light-emitting components, these light-emitting components set in a row, in order to send ruddiness, green glow and the blue light of modulating according to the image that will show; And
At least one screen, the light beam that is scanned is incident upon on this screen.
18. image display device as claimed in claim 17, wherein, described movable body comprises:
At least two rotatingcylindrical drums; And
Be connected in endless belt or chain between this cylinder.
19. image display device as claimed in claim 17, wherein, this device has a linear segments, and at this linear segments place, the linear light unit on the described movable body moves point-blank.
20. image display device as claimed in claim 16, wherein, the quantity of screen is two or more, and each screen is along the different directions from each other setting.
21. image display device as claimed in claim 17, wherein, the quantity of screen is two or more, and each screen is along the different directions from each other setting.
Claims (25)
1. two dimensional optical scanning device comprises:
A rotary body; And
At least two lip-deep linear light units that are arranged on this rotary body, described linear light unit comprises a plurality of light-emitting components, these light-emitting components set in a row, in order to send ruddiness, green glow and the blue light of modulating according to the image that will show.
2. as two dimensional optical scanning device as described in requiring 1, wherein, described rotary body be shaped as a rotatingcylindrical drum.
3. as two dimensional optical scanning device as described in requiring 2, wherein, when the quantity of described linear light unit was n, each linear light unit became the angle setting of 360/n degree with respect to adjacent unit on the surface of rotary body.
4. two dimensional optical scanning device comprises:
The movable body of a circulation rotation; With
At least two linear light units that are arranged on this movable body, described linear light unit comprises a plurality of light-emitting components, these light-emitting components set in a row, in order to send ruddiness, green glow and the blue light of modulating according to the image that will show.
5. two dimensional optical scanning device as claimed in claim 4, wherein, described movable body comprises:
At least two rotatingcylindrical drums; And
Be connected in endless belt or chain between the described cylinder.
6. two dimensional optical scanning device as claimed in claim 5, wherein, when the quantity of described linear light unit is the length of n and chain or band when being s, each light source cell is disposed on band or the chain with respect to the distance of adjacent unit with s/n.
7. two dimensional optical scanning device as claimed in claim 4, wherein, this device has a linear segments, and at this linear segments place, the linear light unit on the described movable body moves point-blank.
8. two dimensional optical scanning device as claimed in claim 1, wherein, described linear light unit is substantially parallel with the rotating shaft of described rotary body.
9. two dimensional optical scanning device as claimed in claim 4, wherein, described linear light unit is basically perpendicular to the direction of motion of described movable body.
10. two dimensional optical scanning device as claimed in claim 1, further comprise collimation lens or converging optical element, the light that this collimation lens is used for coming from the light-emitting component of each linear light unit is transformed into the light beam of basic collimation, and the light that described converging optical element is used for coming from each light-emitting component is transformed into convergent beam.
11. two dimensional optical scanning device as claimed in claim 4, further comprise collimation lens or converging optical element, the light that this collimation lens is used for coming from the light-emitting component of each linear light unit is transformed into the light beam of basic collimation, and the light that described converging optical element is used for coming from each light-emitting component is transformed into convergent beam.
12. two dimensional optical scanning device as claimed in claim 10, wherein, described collimation lens is little rod lens, sphere lens, cylindrical lens, toric lens or prism wedge, and its attaching is on each light-emitting component of linear light sorurce.
13. two dimensional optical scanning device as claimed in claim 11, wherein, described collimation lens is little rod lens, sphere lens, cylindrical lens, toric lens or prism wedge, and its attaching is on each light-emitting component of linear light sorurce.
14. two dimensional optical scanning device as claimed in claim 1, wherein, described collimation lens is little rod lens, sphere lens, cylindrical lens, toric lens or prism wedge, and its attaching is on each light-emitting component of linear light sorurce.
15. two dimensional optical scanning device as claimed in claim 4, wherein, each light-emitting component comprises a LED crystal particle and a poured with epoxy resin spare, and this poured with epoxy resin spare has the light emission surface of sphere shape or aspheric surface shape, thereby plays the function of lens.
16. two dimensional optical scanning device as claimed in claim 1, wherein, each light-emitting component is the light emitting diode of surface emitting type, and its surface all is coated with metal film except presumptive area.
17. two dimensional optical scanning device as claimed in claim 4, wherein, each light-emitting component is the light emitting diode of surface emitting type, and its surface all is coated with metal film except presumptive area.
18. two dimensional optical scanning device as claimed in claim 1, wherein, as the maximum scan angle θ of scanning element
MaxWhen being split up into predetermined resolution, linear light unit is i scan angle theta
iWith (i+1) individual scan angle theta
I+1Between the luminous time interval
Satisfy following condition:
Tan θ
Max=k (tan θ
i-tan θ
I+1) and
Wherein, (2k+1) be the maximum line number of pixel;
θ
I+1It is the scan angle of (i+1) row; And
ω is the angular velocity of scanning element.
19. two dimensional optical scanning device as claimed in claim 4, wherein, as the maximum scan angle θ of scanning element
MaxWhen being split up into predetermined resolution, linear light unit is i scan angle theta
iWith (i+1) individual scan angle theta
I+1Between the luminous time interval
Satisfy following condition:
Tan θ
Max=k (tan θ
i-tan θ
I+1) and
Wherein, (2k+1) be the maximum line number of pixel;
θ
I+1It is the scan angle of (i+1) row; And
ω is the angular velocity of scanning element.
20. an image display device comprises:
Rotary body;
At least two lip-deep linear light units that are arranged on this rotary body, described linear light unit comprises a plurality of light-emitting components, these light-emitting components set in a row, in order to send ruddiness, green glow and the blue light of modulating according to the image that will show; And
At least one screen, the light beam that is scanned is incident upon on this screen.
21. an image display device comprises:
The movable body of circulation rotation;
At least two linear light units that are arranged on this movable body, described linear light unit comprises a plurality of light-emitting components, these light-emitting components set in a row, in order to send ruddiness, green glow and the blue light of modulating according to the image that will show; And
At least one screen, the light beam that is scanned is incident upon on this screen.
22. image display device as claimed in claim 21, wherein, described movable body comprises:
At least two rotatingcylindrical drums; And
Be connected in endless belt or chain between this cylinder.
23. image display device as claimed in claim 21, wherein, this device has a linear segments, and at this linear segments place, the linear light unit on the described movable body moves point-blank.
24. image display device as claimed in claim 20, wherein, the quantity of screen is two or more, and each screen is along the different directions from each other setting.
25. image display device as claimed in claim 21, wherein, the quantity of screen is two or more, and each screen is along the different directions from each other setting.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020030071920 | 2003-10-15 | ||
| KR1020030071920A KR100607644B1 (en) | 2003-10-15 | 2003-10-15 | Two-dimensional optical scanning apparatus and image display apparatus using the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1867852A true CN1867852A (en) | 2006-11-22 |
Family
ID=36499761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2004800304656A Pending CN1867852A (en) | 2003-10-15 | 2004-10-14 | Two dimensional optical scanning apparatus and image display apparatus using the same |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1676166A4 (en) |
| JP (1) | JP2007508598A (en) |
| KR (1) | KR100607644B1 (en) |
| CN (1) | CN1867852A (en) |
| WO (1) | WO2005038505A1 (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102072550A (en) * | 2011-01-28 | 2011-05-25 | 南京丰盛新能源科技股份有限公司 | Intelligent control device suitable for group control of equipment in air-conditioning machine room |
| CN101911711B (en) * | 2008-01-08 | 2013-01-09 | 欧司朗股份有限公司 | Method and device for projecting at least one light beam |
| CN102932653A (en) * | 2008-01-08 | 2013-02-13 | 欧司朗股份有限公司 | Method and device for projecting at least one light beam |
| CN102984528A (en) * | 2008-01-08 | 2013-03-20 | 欧司朗股份有限公司 | Method and device for projecting at least one light beam |
| CN104763923A (en) * | 2015-03-05 | 2015-07-08 | 惠州市德赛视听科技有限公司 | Movable LED backlight device |
| CN105869578A (en) * | 2015-12-24 | 2016-08-17 | 乐视致新电子科技（天津）有限公司 | Backlight source driving device, backlight source driving device group and display terminal |
| CN107561493A (en) * | 2016-06-30 | 2018-01-09 | 吴稷 | Light scanning formula positioner based on annular LCD characteristics |
| CN109597199A (en) * | 2018-12-06 | 2019-04-09 | 金华飞光科技有限公司 | A kind of digital picture production method based on multi beam point light source |
| CN111856745A (en) * | 2019-04-30 | 2020-10-30 | 上海微电子装备（集团）股份有限公司 | Light irradiation device |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007027019A1 (en) | 2005-08-29 | 2007-03-08 | Tae-Sun Song | Optical scanning apparatus and image display apparatus using the same |
| CN101278223B (en) * | 2005-08-29 | 2011-08-31 | 宋太善 | Light source module and optical scanning apparatus using the same |
| FR2929742B1 (en) * | 2008-04-03 | 2012-08-03 | Electronique Conception Vente Fabrication Ecvf | METHOD AND INSTALLATION OF LIGHT DISPLAY |
| EP3549337A4 (en) * | 2016-12-01 | 2020-01-01 | Magic Leap, Inc. | Projector with scanning array light engine |
| US11487244B2 (en) | 2017-11-10 | 2022-11-01 | Arizona Board Of Regents On Behalf Of The University Of Arizona | Method to translate a non-collimated optical beam |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4977323A (en) * | 1973-08-16 | 1990-12-11 | The United States Of America As Represented By The Secretary Of The Navy | 360 degree infrared surveillance with panoramic display |
| EP1111432B1 (en) * | 1991-03-27 | 2005-12-14 | Fujitsu Limited | Light beam scanning aparatus |
| IL106351A0 (en) * | 1993-07-14 | 1993-11-15 | Scitex Corp Ltd | Video display apparatus |
| JPH09120265A (en) * | 1995-10-25 | 1997-05-06 | Sharp Corp | Led display device |
| KR100293240B1 (en) * | 1998-01-06 | 2001-09-17 | 장지호 | Video display device |
| JPH11296105A (en) * | 1998-04-09 | 1999-10-29 | Harakazu:Kk | Image reproducing device |
| KR20000026066A (en) * | 1998-10-17 | 2000-05-06 | 윤종용 | Rotation reflective mirror and printing device using thereof |
| DE10044664A1 (en) * | 2000-09-09 | 2002-04-04 | Rainer Glaetzer | screen |
-
2003
- 2003-10-15 KR KR1020030071920A patent/KR100607644B1/en not_active IP Right Cessation
-
2004
- 2004-10-14 JP JP2006535265A patent/JP2007508598A/en not_active Withdrawn
- 2004-10-14 WO PCT/KR2004/002629 patent/WO2005038505A1/en active Application Filing
- 2004-10-14 CN CNA2004800304656A patent/CN1867852A/en active Pending
- 2004-10-14 EP EP04793491A patent/EP1676166A4/en not_active Withdrawn
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101911711B (en) * | 2008-01-08 | 2013-01-09 | 欧司朗股份有限公司 | Method and device for projecting at least one light beam |
| CN102932653A (en) * | 2008-01-08 | 2013-02-13 | 欧司朗股份有限公司 | Method and device for projecting at least one light beam |
| CN102984528A (en) * | 2008-01-08 | 2013-03-20 | 欧司朗股份有限公司 | Method and device for projecting at least one light beam |
| CN102984528B (en) * | 2008-01-08 | 2016-05-04 | 欧司朗股份有限公司 | For the method and apparatus of at least one light beam of projection |
| CN102932653B (en) * | 2008-01-08 | 2016-07-06 | 欧司朗股份有限公司 | For the method and apparatus projecting at least one light beam |
| CN102072550A (en) * | 2011-01-28 | 2011-05-25 | 南京丰盛新能源科技股份有限公司 | Intelligent control device suitable for group control of equipment in air-conditioning machine room |
| CN104763923A (en) * | 2015-03-05 | 2015-07-08 | 惠州市德赛视听科技有限公司 | Movable LED backlight device |
| CN105869578A (en) * | 2015-12-24 | 2016-08-17 | 乐视致新电子科技（天津）有限公司 | Backlight source driving device, backlight source driving device group and display terminal |
| CN107561493A (en) * | 2016-06-30 | 2018-01-09 | 吴稷 | Light scanning formula positioner based on annular LCD characteristics |
| CN109597199A (en) * | 2018-12-06 | 2019-04-09 | 金华飞光科技有限公司 | A kind of digital picture production method based on multi beam point light source |
| CN111856745A (en) * | 2019-04-30 | 2020-10-30 | 上海微电子装备（集团）股份有限公司 | Light irradiation device |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1676166A1 (en) | 2006-07-05 |
| WO2005038505A1 (en) | 2005-04-28 |
| KR20050036288A (en) | 2005-04-20 |
| EP1676166A4 (en) | 2008-01-30 |
| KR100607644B1 (en) | 2006-07-31 |
| JP2007508598A (en) | 2007-04-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1867852A (en) | Two dimensional optical scanning apparatus and image display apparatus using the same | |
| CN1114120C (en) | Reflection type projector | |
| CN1183400C (en) | Light beam display | |
| CN1183401C (en) | Colour image display with single-surface board | |
| CN1296747C (en) | Scanning method of forming planar light source, planar light source and laser projection television | |
| CN1204435C (en) | Image display apparatus having optical scanner | |
| CN1731238A (en) | Illuminator that can eliminate laser speckle and adopt its optical projection system | |
| CN1617026A (en) | Backlight assembly of liquid crystal display | |
| CN1820219A (en) | Illuminating light source and two-dimensional image display using same | |
| CN1702484A (en) | Light guide, line-illuminating device, and image-reading device | |
| CN1779530A (en) | Side light-emitting device, backlight unit, and liquid crystal display apparatus | |
| CN1991569A (en) | Lighting device and projector | |
| CN1132136C (en) | Picture display device with two microlens arrays | |
| CN1906504A (en) | Fresnel lens and projection display device using one such lens | |
| US20210325770A1 (en) | Light-emitting device and projector using the same | |
| US20070019407A1 (en) | Two dimensional optical scanning apparatus and image display apparatus using the same | |
| CN1485645A (en) | Air conditioning unit | |
| CN1424623A (en) | Optical projecting system with color drum | |
| CN1554982A (en) | Multiple light source lighting system for projector | |
| CN1723409A (en) | Image display unit | |
| US20230324779A1 (en) | Projection display device | |
| CN1577067A (en) | Projection display apparatus | |
| KR100607643B1 (en) | Two-dimensional optical scanning apparatus and image display apparatus using the same | |
| TW200423728A (en) | Scanning two-dimensional array of light-emitting units | |
| CN1904465A (en) | Lighting unit structure and lighting light source structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |