CN100397880C - Image projection working system - Google Patents
Image projection working system Download PDFInfo
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- CN100397880C CN100397880C CNB200510034546XA CN200510034546A CN100397880C CN 100397880 C CN100397880 C CN 100397880C CN B200510034546X A CNB200510034546X A CN B200510034546XA CN 200510034546 A CN200510034546 A CN 200510034546A CN 100397880 C CN100397880 C CN 100397880C
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- photophore
- tilting mirror
- mirror
- scanning
- light
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- 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
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Mechanical Optical Scanning Systems (AREA)
- Projection Apparatus (AREA)
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Abstract
The present invention provides a work system for controlling image projection, which is designed for image projection equipment which provides a light path through a multilayer prism reflecting, can calculate the incident angle of an illuminator, and controls the release frequency a pixel point. The present invention is characterized in that the present invention comprises an illuminator control system, three or over three illuminators, a rotating mirror control system, and a rotating mirror which is controlled by the rotating mirror control system to rotate. A signal reception system is used for receiving and transferring image signals to a treatment circuit of signal separation; the treatment circuit of signal separation comprises a synchronous control circuit of the illuminator illuminating and the prism rotating, and the illuminator control system is connected with the rotating mirror control system through the treatment circuit of signal separation; the illuminator control system is connected with the illuminators, controls the illuminators to illuminate, and shoots light on the rotating mirror, and then the light is reflected on a screen, wherein the rotating mirror is a multi-row multilayer face mirror, each layer of the single face mirror is different from the other face mirror in the same layer corresponding to the inclination angle of a rotating shaft of the rotating mirror. The present invention has high adaptability and can realizes that various reflection type projection systems are controlled through popularization.
Description
Technical field
The invention belongs to a kind of control system, in particular, relate to a kind of work system of controlling the image projection device of high definition.
Background technology
Electron-beam tube CRT projector in the existing video projection system, liquid crystal light valve projector, LED big screen display screen heroes also rise, and dominate the market with separately advantage.But which kind of the development pattern for no matter, the image projection system of high definition all requirement can make light source point carry out array on display screen to arrange, and therefore mode is that display screen is scanned preferably.Chinese patent application number No. 03101375.9 application for a patent for invention, a kind of subregion fine scanning formula laser projection is provided, the employing light beam that multirow scans simultaneously in system row carry out the subregion line scanning of image, adopt the laser array modulated of big quantity in the equipment, the light valve array structure.Adopt the equipment of this kind mode, have the laser of the big order of magnitude, the hardware cost of needed light source is exactly huge, simultaneously, need control the laser of big quantity, and the software of being controlled also is suitable complexity partly.And for example No. 01103170.0 application for a patent for invention of number of patent application, a kind of video display is provided, by the pixel storage control, the light emitting drive plate, the light harvesting follower, composition such as optical scanner and image display panel, on the light emitting drive plate, be provided with the three-color light-emitting unit that quantity equates with the pixel number of delegation or row, each three-color light-emitting unit is made up of three primary colours luminescent devices, the light harvesting follower is made up of a plurality of tree-shaped optical collectors with three branch roads, the quantity of tree-shaped optical collector is identical with the quantity of three-color light-emitting unit, each tree-shaped optical fiber optical collector is corresponding with a three-color light-emitting unit, the light that three single primary colours luminescent devices send enters tree-shaped optical fiber optical collector from three branch roads of the tree-shaped optical fiber optical collector corresponding with it and carries out colour mixture, the output of all tree-shaped optical fiber optical collectors is arranged in a row in order, image display panel is made up of regularly arranged many optical fiber, and the quantity of optical fiber becomes square doubly fast relation of integer with the pixel quantity of a two field picture.Adopt the equipment of this kind mode, need thousands of luminescence units as photophore, the cost of material of producing is huge, simultaneously to the installation of thousands of parts, work step is also quite complicated, in addition, the production of tree-shaped optical fiber optical collector is suitable difficulty, and the effect that the light that optical fiber transmitted carries out reflex time more also is to be difficult to reach requirement.
Desire to overcome these defectives, can design and use a kind of image projecting equipment that utilizes prismatic reflection that light path is provided, include a plurality of photophores, tilting mirror, display screen, tilting mirror is many ribs multilayer mirrors, every layer single mirror is different mutually with respect to the inclination angle angle of the rotating shaft of tilting mirror with the other mirrors of same layer, each photophore is corresponding to each face mirror layer of many ribs multilayer mirrors, the light that photophore sends reflects by tilting mirror, inject on the display screen, be a plurality of photophores regional upper left corners from being scanned separately simultaneously, do horizontal sweep to the right.So scan one by one until zone separately the lower right corner, promptly finished the demonstration of whole screen one frame (i.e. a width of cloth picture), afterwards, get back to the scanning that the upper left corner begins a new frame heavily again, so just can realize simple and reliable Projection Display.
Realize the control system of this kind Projection Display, at first to calculate the incident angle of photophore, control its pixel again and discharge frequency, and at the rotating mirror system of its design reflectivity, the rotating rule of control tilting mirror, allow photophore reflect and on display screen, form a width of cloth complete image picture, and can make it to realize showing 30 width of cloth pictures between second, realize that high definition shows corresponding to whole face mirrors.Also should be provided with reponse system simultaneously and the pixel size of ranks be carried out the circuit etc. of linear compensation.No matter this system still is in the international market, all not occur at home.
China Patent No. 02231240.4 discloses a kind of scan-type projection arrangement, in order to rebuild according to an input signal and to project a video picture frame on a screen, this video picture frame has a two-dimensional array that is made of a plurality of pixels, each pixel is corresponding respectively one to have the ad-hoc location of address coordinate and one scan line coordinate on this screen, it is characterized in that, several light beams that the output synchronously of this scan-type projection arrangement conforms to the number of pixels of address coordinate bearing of trend on the position that is positioned at this address coordinate on the different scanning line coordinates, constitute video picture frame to scan one by one with projection in regular turn.This invention nationality is exported the video picture frame by the luminous intensity of control light source assembly, and the collocation reflector element pursues column scan, its advantage is effectively to control the volume of light source assembly, but its reflector element is the many mirrors of individual layer, be limited, can not make a light is corresponding screen lastrow pixel, so realize that the control to it is the comparison difficulty.
Summary of the invention
The object of the present invention is to provide a kind of work system of image projection, it is at utilizing the multilayer prismatic reflection that the image projecting equipment design of light path is provided, can calculate the incident angle of photophore, control its pixel and discharge frequency, and at the rotating mirror system of its design reflectivity, the rotating rule of control tilting mirror, and can make it to realize that high definition shows.Its matching is higher, in the same way, can realize controlling various reflective optical projection systems.
Realize the work system of a kind of image projection of the object of the invention, include display screen, receiving system, the signal separation process circuit, it is characterized in that, also include photophore, the tilting mirror control system of photophore control system, three or three above quantity and the tilting mirror that under its control, rotates; Described receiving system receives picture intelligence and passes to the signal separation process circuit, and the signal separation process circuit comprises the synchronization control circuit that photophore is luminous and prism rotates; Described signal separation process circuit connects photophore control system and tilting mirror control system; The photophore control system connects and the luminous tilting mirror that is incident upon of control photophore reflexes on the screen again; Described tilting mirror is many ribs multilayer mirrors, and every layer single mirror is different with the other mirrors of same layer with respect to the inclination angle angle of the rotating shaft of tilting mirror.
Realize a kind of image projection work system of the object of the invention, also comprise the reponse system that connects tilting mirror and tilting mirror control system, described reponse system is the light-sensitive element that is placed in before the display screen, and the light signal that described light-sensitive element record photophore reflects through tilting mirror also produces feedback signal.
Realize the work system of a kind of image projection of the object of the invention, the external receiving video signals of described receiving system, described photophore control system comprises that photophore drives and compensating circuit.
Realize the work system of a kind of image projection of the object of the invention, its line number of finally injecting the light of display screen imaging is at least 750 lines, described tilting mirror is a taper, and photophore is that red, green, blue three-primary color LED or red, green, blue tricolor laser device are formed.
A kind of concrete mode as image projection work system of the present invention, being provided with photophore has more than three or three, every layer single mirror is different mutually with respect to the inclination angle angle of the rotating shaft of tilting mirror with the other mirrors of same layer, and each photophore is corresponding to each face mirror layer of many ribs multilayer mirrors; During work, each layer photophore is simultaneously luminous, the light that each photophore sends is scanned up to first horizontal scanning line separately that display screen forms each photophore correspondence through first mirroring of corresponding tilting mirror layer, after this, when tilting mirror goes to second mirror of each layer, reflex to display screen and form second horizontal scanning line separately of each photophore correspondence, tilting mirror rotates successively, the light that each photophore sends forms scan line one by one on display screen after each corresponding aspect mirroring, after tilting mirror rotated a circle, all photophore reflected corresponding to whole face mirrors and form a width of cloth complete image picture on display screen; The line number of imaging is at least 750 row on display screen, and system finishes in 1 second unit interval 25 times and the scanning of above scanning plane altogether, forms the scanning projection frequency of per second 25 times and above scanning plane.
As a kind of embodiment of the present invention, described photophore has 20, and described tilting mirror is that many ribs multilayer mirrors is divided into 20 layers, and every aspect mirror is 54, and the inclination angle angle of each face mirror and the inclination angle angle of other mirrors are different; Each photophore is corresponding to an aspect mirror of many ribs multilayer mirrors, and the light that each photophore sent is injected display screen and formed image after the reflection of many ribs multilayer mirrors.At first, the receiving system acknowledge(ment) signal also inputs to the signal separation process circuit, be separated into tristimulus signals and import photophore, the light that the photophore control system is sent according to signal controlling first photophore forms the scan line in 1920 sites of article one to display screen through first mirroring of ground floor of tilting mirror, tilting mirror control system control this moment tilting mirror turns over ground floor second minute surface, and second mirroring of luminous first aspect through tilting mirror of first photophore forms the scan line in 1920 sites of second to display screen; The light that first photophore sends is finished the reflective scan of the ground floor of many ribs multilayer mirrors successively, scans 54 scan lines on display screen; Finish the scanning of ground floor at first photophore after, first photophore cuts out, the photophore control system is controlled second photophore and is opened luminous, the light that second photophore sends forms the 55th scan line after first mirroring of the second layer of tilting mirror, the same with first photophore, the light that second photophore sends has also scanned 54 scan lines after many ribs multilayer mirrors turns over a week; After second photophore was finished second layer scanning, second photophore cut out, and the photophore control system is controlled the 3rd photophore and opened the 3rd aspect mirror that begins to scan many ribs multilayer mirrors; System finishes the reflective scan work of 20 photophores corresponding to 20 aspect mirrors of many ribs multilayer mirrors successively like this, on display screen altogether reading scan 1080 row, form a scanning plane; Also be connected to reponse system at tilting mirror and tilting mirror control system, reponse system is handled and is converted to the signal of telecommunication with sensing element and sends to the tilting mirror control system to light signal, and the rotating speed of adjusting tilting mirror makes the light that reflexes to screen uniform and stable; System finishes the scanning of 30 times scanning plane altogether in 1 second unit interval, form 30 frames, and standard is that the high definition of 1080P shows.
Adopt image projection work system of the present invention, can control the prism projection arrangement and reflect pixel, and its feedback and compensation correction performance are good, make its video display effect very clear with high order of magnitude; In addition, its control circuit is less, does not need very high integrated level, makes the functional reliability height; Simultaneously, the fixed-site of luminescent device, the position is moved less, and the face mirror of many ribs multilayer mirrors is simple in structure, easily manufactured, and cost is low; The The whole control system volume is little, and the matching height in the same way, more can be controlled the various projection arrangements that utilize catoptric imaging.
Description of drawings
Fig. 1 is a system schematic of the present invention;
Fig. 2 is one embodiment of the invention work schematic diagram.
Wherein: 6,7,8,9 mirrors 11,12,21,22,31,32,41,42 of display screen 3 reflection ray 4 tilting mirrors, 5 photophores
Embodiment
As shown in Figure 1, be system schematic of the present invention, receiving system connects the signal separation process circuit, and the signal separation process circuit connects photophore control system and tilting mirror control system; Amplification, stable, squelch circuit are arranged in the photophore control system, and its vision signal to input can be handled, and is converted into voltage and current signal and controls the luminous tilting mirror that is incident upon of photophore; The tilting mirror control system is made of tilting mirror control and motor-drive circuit, and it connects and the control tilting mirror rotates; Tilting mirror is many ribs multilayer mirrors, and every layer single mirror is different with the other mirrors of same layer with respect to the inclination angle angle of the rotating shaft of tilting mirror; A plurality of photophores place the fixed position, make the light that sends can be mapped on the tilting mirror just and reflex to screen.Also be connected to reponse system at tilting mirror and tilting mirror control system, reponse system is handled and is converted to the signal of telecommunication with sensing element and sends to the tilting mirror control system to light signal, and the rotating speed of adjusting tilting mirror makes the light that reflexes to screen uniform and stable.
Be illustrated in figure 2 as a specific embodiment of the present invention:
Photophore, many ribs multilayer tilting mirror 5 have 20 layers (illustrating 4 layers), photophore is provided with 20 (illustrating 4), correspond respectively to each layer minute surface of many ribs multilayer mirrors 5, the quantity that many ribs multilayer mirrors is every layer is 54 (only being depicted as 10 minute surfaces in the accompanying drawing as illustrative), whole many ribs multilayer mirrors is a taper, and the inclination angle angle of arbitrary mirror is different; Photophore is luminous by luminous 1920 times frequency of every scanning mirror unit interval.
At first, article 1080, vision signal enters to the signal separation process circuit by receiving system, and be separated into tristimulus signals and import photophore, send pulse control signal simultaneously and give the tilting mirror control system, in the present embodiment, photophore adopts LED, before photophore, be installed on the lens that focus on usefulness, tilting mirror is started working when LED emission light, LED photophore 6,7,8,9 light that send 4 are through first mirror 11 of respective layer of tilting mirror 5,21,31,41 reflex to the scan line that display screen 3 forms 1920 sites of article one separately, this moment, tilting mirror 5 turned over each layer second minute surface 12,22,32,42, the luminous scan line that forms 1920 sites of second of corresponding aspect reflection through second mirroring of corresponding aspect of tilting mirror to display screen 3 of each LED photophore; The light that each LED photophore 6,7,8,9 sends is finished the reflective scan of many ribs multilayer mirrors, respectively scans 54 corresponding scan lines on display screen 3; System finishes the reflective scan work of 20 LED photophores corresponding to 20 aspect mirrors of many ribs multilayer mirrors, on display screen 3 altogether reading scan 1080 row, form a scanning plane; System finishes the scanning of 30 times scanning plane altogether in 1 second unit interval, the scanning projection frequency of the scanning plane that the formation per second is 30 times.
The light-sensitive element that the reponse system employing of present embodiment is installed in before the screen sends a signal to the tilting mirror control system, and corrected signal separating treatment circuit is issued the pulse signal of rotating mirror system, adjusts its rotating speed, guarantees to demonstrate even, stable image.
Claims (10)
1. the work system of an image projection includes display screen, receiving system, and the signal separation process circuit is characterized in that:
Also include photophore, the tilting mirror control system of photophore control system, three or three above quantity and the tilting mirror that under its control, rotates;
Described receiving system receives picture intelligence and passes to the signal separation process circuit, and the signal separation process circuit comprises the synchronization control circuit that photophore is luminous and prism rotates;
Described signal separation process circuit connects photophore control system and tilting mirror control system;
The photophore control system connects and the luminous tilting mirror that is incident upon of control photophore reflexes on the screen again;
Described tilting mirror is many ribs multilayer mirrors, and every layer single mirror is different with the other mirrors of same layer with respect to the inclination angle angle of the rotating shaft of tilting mirror.
2. the work system of image projection as claimed in claim 1 is characterized in that: also comprise the reponse system that connects tilting mirror and tilting mirror control system.
3. the work system of image projection as claimed in claim 2 is characterized in that: the external receiving video signals of described receiving system.
4. the work system of image projection as claimed in claim 3 is characterized in that: described tilting mirror control system is to be made of tilting mirror control and motor-drive circuit.
5. as claim
The work system of the described image projection of arbitrary claim in 4 is characterized in that: described reponse system is the light-sensitive element that is placed in before the display screen, and the light signal that described light-sensitive element record photophore reflects through tilting mirror also produces feedback signal.
6. as the work system of the described image projection of arbitrary claim in the claim 1 to 4, it is characterized in that: the line number of finally injecting the light of display screen imaging is at least 750 lines, described tilting mirror is a taper, and photophore is that red, green, blue three-primary color LED or red, green, blue tricolor laser device are formed.
7. the work system of image projection as claimed in claim 5, it is characterized in that: the line number of finally injecting the light of display screen imaging is at least 750 lines, described tilting mirror is a taper, and photophore is that red, green, blue three-primary color LED or red, green, blue tricolor laser device are formed.
8. as the work system of the described image projection of arbitrary claim in the claim 1 to 4, it is characterized in that: be provided with the photophore more than three or three, every layer single mirror is different mutually with respect to the inclination angle angle of the rotating shaft of tilting mirror with the other mirrors of same layer, and each photophore is corresponding to each face mirror layer of many ribs multilayer mirrors; During work, each layer photophore is simultaneously luminous, the light that each photophore sends is scanned up to first horizontal scanning line separately that display screen forms each photophore correspondence through first mirroring of corresponding tilting mirror layer, after this, when tilting mirror goes to second mirror of each layer, reflex to display screen and form second horizontal scanning line separately of each photophore correspondence, tilting mirror rotates successively, the light that each photophore sends forms scan line one by one on display screen after each corresponding aspect mirroring, after tilting mirror rotated a circle, all photophore reflected corresponding to whole face mirrors and form a width of cloth complete image picture on display screen; The line number of imaging is at least 750 row on display screen, and system finishes in 1 second unit interval 25 times and the scanning of above scanning plane altogether, forms the scanning projection frequency of per second 25 times and above scanning plane.
9. the work system of image projection as claimed in claim 5, it is characterized in that: photophore is 20, and tilting mirror is 20 layers, and the quantity of every aspect mirror is 54, and whole tilting mirror is a taper; Photophore is luminous by luminous 1920 times frequency of every scanning mirror unit interval; At first, the light that first photophore sends forms the scan line in 1920 sites of article one to display screen through first mirroring of ground floor of tilting mirror, tilting mirror turns over ground floor second minute surface, and second mirroring of luminous first aspect through tilting mirror of first photophore forms the scan line in 1920 sites of second to display screen; The light that first photophore sends is finished the reflective scan of the ground floor of tilting mirror successively, scans 54 scan lines on display screen; Finish the scanning of ground floor at first photophore after, first photophore cuts out, second photophore is opened luminous, the light that second photophore sends forms the 55th scan line after first mirroring of the second layer of tilting mirror, the same with first photophore, the light that second photophore sends has also scanned 54 scan lines after tilting mirror turns over a week; After second photophore was finished second layer scanning, second photophore cut out, and the 3rd photophore is opened the 3rd aspect mirror of beginning scanning mirror; System finishes the reflective scan work of 20 photophores corresponding to 20 aspect mirrors of tilting mirror successively, on display screen altogether reading scan 1080 row, form a scanning plane; System finishes the scanning of 30 times scanning plane altogether in 1 second unit interval, the scanning projection frequency of the scanning plane that the formation per second is 30 times.
10. the work system of image projection as claimed in claim 7, it is characterized in that: photophore is 20, and tilting mirror is 20 layers, and the quantity of every aspect mirror is 54, and whole tilting mirror is a taper; Photophore is luminous by luminous 1920 times frequency of every scanning mirror unit interval; At first, the light that first photophore sends forms the scan line in 1920 sites of article one to display screen through first mirroring of ground floor of tilting mirror, tilting mirror turns over ground floor second minute surface, and second mirroring of luminous first aspect through tilting mirror of first photophore forms the scan line in 1920 sites of second to display screen; The light that first photophore sends is finished the reflective scan of the ground floor of tilting mirror successively, scans 54 scan lines on display screen; Finish the scanning of ground floor at first photophore after, first photophore cuts out, second photophore is opened luminous, the light that second photophore sends forms the 55th scan line after first mirroring of the second layer of tilting mirror, the same with first photophore, the light that second photophore sends has also scanned 54 scan lines after tilting mirror turns over a week; After second photophore was finished second layer scanning, second photophore cut out, and the 3rd photophore is opened the 3rd aspect mirror of beginning scanning mirror; System finishes the reflective scan work of 20 photophores corresponding to 20 aspect mirrors of tilting mirror successively, on display screen altogether reading scan 1080 row, form a scanning plane; System finishes the scanning of 30 times scanning plane altogether in 1 second unit interval, the scanning projection frequency of the scanning plane that the formation per second is 30 times.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200510034546XA CN100397880C (en) | 2005-05-12 | 2005-05-12 | Image projection working system |
| PCT/CN2006/000851 WO2006119689A1 (en) | 2005-05-12 | 2006-04-29 | Image projection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200510034546XA CN100397880C (en) | 2005-05-12 | 2005-05-12 | Image projection working system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1688161A CN1688161A (en) | 2005-10-26 |
| CN100397880C true CN100397880C (en) | 2008-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200510034546XA Expired - Fee Related CN100397880C (en) | 2005-05-12 | 2005-05-12 | Image projection working system |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN100397880C (en) |
| WO (1) | WO2006119689A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102193283A (en) * | 2010-03-06 | 2011-09-21 | 富港电子（东莞）有限公司 | Projector |
| CN107526208A (en) * | 2016-06-21 | 2017-12-29 | 上海易景信息科技有限公司 | Light reflective display system and method |
| CN110927698A (en) * | 2019-10-26 | 2020-03-27 | 深圳奥锐达科技有限公司 | Laser scanning device and scanning method |
| US12055660B2 (en) * | 2020-05-19 | 2024-08-06 | Gm Cruise Holdings Llc | Polygon scanning mirror for lidar beam scanning |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07249093A (en) * | 1994-03-11 | 1995-09-26 | Nippon Electric Ind Co Ltd | Reader for bar code symbol |
| CN1370005A (en) * | 2001-02-16 | 2002-09-18 | 黄耕 | Video display |
| CN1438510A (en) * | 2003-01-08 | 2003-08-27 | 王青山 | Zoned multi-row-scanning type laser projector |
| CN1506712A (en) * | 2002-12-03 | 2004-06-23 | 中国科学院长春光学精密机械与物理研 | Scanning method of forming planar light source, planar light source and laser projection television |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5534950A (en) * | 1993-10-04 | 1996-07-09 | Laser Power Corporation | High resolution image projection system and method employing lasers |
| JP3714003B2 (en) * | 1999-03-02 | 2005-11-09 | セイコーエプソン株式会社 | Projection type display device and prism used therefor |
| CN1580867A (en) * | 2003-08-14 | 2005-02-16 | 台达电子工业股份有限公司 | Digital light treating projecting system and its projecting method |
-
2005
- 2005-05-12 CN CNB200510034546XA patent/CN100397880C/en not_active Expired - Fee Related
-
2006
- 2006-04-29 WO PCT/CN2006/000851 patent/WO2006119689A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07249093A (en) * | 1994-03-11 | 1995-09-26 | Nippon Electric Ind Co Ltd | Reader for bar code symbol |
| CN1370005A (en) * | 2001-02-16 | 2002-09-18 | 黄耕 | Video display |
| CN1506712A (en) * | 2002-12-03 | 2004-06-23 | 中国科学院长春光学精密机械与物理研 | Scanning method of forming planar light source, planar light source and laser projection television |
| CN1438510A (en) * | 2003-01-08 | 2003-08-27 | 王青山 | Zoned multi-row-scanning type laser projector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1688161A (en) | 2005-10-26 |
| WO2006119689A1 (en) | 2006-11-16 |
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