CN102087414B - Array-type partition projection method - Google Patents

Array-type partition projection method Download PDF

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CN102087414B
CN102087414B CN 201010529040 CN201010529040A CN102087414B CN 102087414 B CN102087414 B CN 102087414B CN 201010529040 CN201010529040 CN 201010529040 CN 201010529040 A CN201010529040 A CN 201010529040A CN 102087414 B CN102087414 B CN 102087414B
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laser
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CN102087414A (en )
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徐英舜
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凝辉(天津)科技有限责任公司
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一种阵列式分区投影方法,它包括以下步骤:首先将需投影的图像分割成2*2个独立的小视屏或小图像,所述的小视屏或小图像是根据图像的分布位置来分割的,所述的小视屏或小图像分别是分布于原图像第1、2、3、4象限的图像;再将步骤1)得到的四个小视屏或小图像分别同时传输至微型阵列式激光扫描投影装置的视屏转换模块的输入端,所述的微型阵列式激光扫描投影装置用于将得到的小视屏或小图像,按照每个小视屏或小图像在原图像的分布位置,投影到屏幕上;该方法能够利用现有技术水平的微型扫描投影器件,实现高分辨率、大屏幕投影,采用该方法对高分辨率的高清节目能够实现大屏幕投影。 An array partitioning projection method, comprising the steps of: first image to be projected is divided into 2 * 2 independent small or small video screen image, the image is small video screen or small depending on the location of the image segmenting , a small video screen or a small image of the original image are distributed in the first quadrant image 1,2,3,4; then step 1) to give a small video screen or four small images are transmitted simultaneously to the microarray laser scanning microarray laser scanning projection apparatus screen projection apparatus converts input module, for a small video screen or a small image obtained for each small video screen or a small image layout position in the original image, projected onto the screen; the prior art method can be utilized horizontal scanning micro projection device, to achieve high resolution, large-screen projection, using the method of high-resolution high-definition programming large-screen projection can be achieved.

Description

一种阵列式分区投影方法 An array partitioning projection method

技术领域 FIELD

[0001] 本发明涉及一种投影方法,特别是涉及一种采用微型阵列式激光扫描投影装置进行阵列式分区投影方法。 [0001] The present invention relates to a projection method, particularly to a microarray laser scanning projection apparatus using the projection method for partitioning an array.

背景技术 Background technique

[0002] 目前,基于MEMS (Microelectromechanical Systems,微机电系统)微扫描镜和激光光源的激光扫描微型投影设备,具有体积小,亮度高,无须聚焦等优点,已广泛得到应用。 [0002] At present, based on MEMS (Microelectromechanical Systems, MEMS) scanning mirror laser micro-laser light source and scanning micro projection device having a small size, high brightness, without focus, etc., it has been widely applied.

[0003] 其中,所用到的一个核心部件就是用于二维激光扫描的MEMS微扫描镜,它包括可动的反射镜和使反射镜绕X轴和Y轴高速转动的致动器(Actuator)。 [0003] wherein a core member is used for the scanning mirror MEMS micro-dimensional laser scanning, which includes the movable mirror and the mirror about the X-axis and Y-axis high-speed rotation of the actuator (Actuator) . 其结构通常有两种: There are usually two of its structure:

(I)单个有万向节(Gimbal)或无万向节(Gimbal-Iess)的双轴微扫描镜,包括一个快扫描轴(X轴)用于行扫描和一个慢扫描轴(Y轴)用于场扫描,两个轴相互正交;(2)两个单轴微扫描镜,其中一个扫描镜负责行扫描(即X轴扫描),它是由快速驱动器来实现完成的;另一个正交放置的单轴微扫描镜完成较慢的场扫描(Y轴扫描)。 (I) with a single joint (Gimbal) or without joint (Gimbal-Iess) biaxial micro scanning mirror, comprising a fast-scan axis (X axis) for line scanning and a slow scan axis (Y axis) for a field scanning, two mutually orthogonal axes; (2) two single-axis scanning micro-mirror, wherein the scanning mirror is responsible for a scan line (i.e. X-axis scanning), which is implemented by a rapid drive to complete; the other n cross uniaxial micro scanning mirror disposed slower field scanning is completed (Y-axis scanning).

[0004]目前,激光扫描微型投影设备所能达到的极限是:VGA (640X480)或WVGA(848X480)的分辨率和60Hz的刷新率(场扫描频率)。 [0004] Currently, laser scanning micro projection device limit is achievable: VGA (640X480) or WVGA (848X480) resolution and a refresh rate of 60Hz (the field scanning frequency). 图像的分辨率和刷新率主要受微扫描镜的行扫描频率和激光器调制频率的限制,一般来说,微扫描镜的扫描频率越高,它的扫描角度越小,这就意味着,在距离屏幕较近的应用场合,无法获得足够大的投影图像。 Scanning the laser frequency and the limiting lines of the modulation frequency refresh rate and resolution of the image by the main scanning micro-mirror, in general, the higher the frequency of the micro scan mirror scanning, its scanning angle is smaller, which means that the distance screen close application, can not get a sufficiently large projected image. 随着大屏幕的普及,分辨率为1080p (1920X1080) @60Ηζ和720ρ (1280X720) @60Ηζ的高清节目大量涌现,现有的微型激光扫描投影设备已无法满足人们对高分辨率、大屏幕投影的需求,例如,为了满足1080ρ (1920X1080) @60Ηζ,微型激光扫描投影设备的微扫描镜的行扫描频率需达到64. 8ΚΗζ,其激光器的调制频率在1080ρ时需要达到约为124. 4MHz,在720ρ时也要达到55. 3MHz,在这样高的扫描频率和调制频率下,不仅微扫描镜在扫描时很难获得足够大的实用扫描角度,同时对于微型激光器来说,也已经达到了其调制频率的技术极限。 With the popularity of large screen with a resolution of 1080p (1920X1080) @ 60Ηζ and 720ρ (1280X720) @ 60Ηζ HD programming in large numbers, the existing micro-projection laser scanning equipment has been unable to meet the people on the high-resolution, large-screen projection needs, e.g., in order to satisfy 1080ρ (1920X1080) @ 60Ηζ, micro-miniature laser scanning mirror scanning line scanning frequency projection device should reach 64. 8ΚΗζ, the modulation frequency of the laser is needed when 1080ρ reached about 124. 4MHz, in 720ρ when have reached 55. 3MHz, at such high scanning frequency and the modulation frequency, not only micro-scanning mirror is difficult to obtain a sufficiently large scan angle in the scan utility, while for miniature lasers, has reached its modulation frequency the technical limit. 现有技术的激光扫描微型投影设备根本无法对分辨率为1080p (1920X1080) @60Hz和720p (1280X720) i60Hz的高清节目进行投影成像,如何利用现有科技水平的器件,实现对高分辨率的高清节目进行大屏幕投影,已经成为人们亟需解决的问题。 Prior art laser scanning micro-projection device can not pair with a resolution of 1080p (1920X1080) @ 60Hz and 720p (1280X720) i60Hz HD programming projected image, how to use existing level of technology devices, to achieve high-resolution high-definition show large-screen projection, it has become a problem to be resolved.

发明内容 SUMMARY

[0005] 本发明的目的就是提供一种阵列式分区投影方法,该方法能够利用现有技术水平的微型扫描投影器件,实现高分辨率、大屏幕投影,采用该方法对高分辨率的高清节目能够实现大屏幕投影。 [0005] The object of the present invention is to provide a projection array partitioning method which can be utilized state of the art micro-scanning projection device, to achieve high resolution, large-screen projection, using this method for high-resolution high-definition programming to achieve large-screen projection.

[0006] 为实现上述目的,本发明采用技术方案是:它包括以下步骤: [0006] To achieve the above object, the technical solution of the present invention are: it comprises the steps of:

[0007] I)将需投影的图像分割成2*2个独立的小视屏或小图像,所述的小视屏或小图像是根据图像的分布位置来分割的,所述的小视屏或小图像分别是分布于原图像第1、2、3、4象限的图像; [0007] I) The image to be projected into 2 * 2 independent small or small video screen image, a small video screen or a small image is distributed according to the position of the image segmentation, a small video screen or a small image They are distributed in the image of the original image 1,2,3,4 quadrant;

[0008] 2)将步骤I)得到的四个小视屏或小图像分别同时传输至微型阵列式激光扫描投影装置的视屏转换模块的输入端,所述的微型阵列式激光扫描投影装置用于将得到的小视屏或小图像,按照每个小视屏或小图像在原图像的分布位置,投影到屏幕上; [0008] 2) in step I) to give a small video screen or four small images are simultaneously transmitted to the input conversion module Screen microarray laser scanning projection apparatus, said microarray scanning laser projection means for small screen or obtained small images, each in a small video screen or a small image layout position of the original image projected onto the screen;

[0009] 所述的微型阵列式激光扫描投影装置,包括以下部件:视屏转换模块、激光光源模块、激光驱动调制模块、模拟微镜模块、微扫描镜控制模块和屏幕;视屏转换模块输出端分别与激光驱动调制模块和模拟微镜模块的输入端连接,激光驱动调制模块的输出端与激光器电源模块的输入端连接,模拟微镜模块的输出端与MEMS微扫描镜的输入端连接,激光光源模块发出的激光投射在MEMS微扫描镜的可动反射镜面上,经可动反射镜面反射后,投射在屏幕上; [0009] microarray laser scanning projection apparatus, comprising the following components: Screen conversion module, a laser light source module, the laser driver modulation module, an analog micromirrors module, control module and a micro-screen scanning mirror; Screen converting module output terminals are an input terminal connected to the module and an analog laser driver modulation micromirror module, an output terminal and the input terminal of the laser power supply module is connected to the laser driver modulation module, an analog input module micromirror output terminal of MEMS scanning mirror is connected to the laser light source emitted from the laser module is projected on the MEMS scanning mirror of the micro movable reflecting mirror, reflected by the movable mirror after reflection, projected onto a screen;

[0010] 所述的视屏转换模块用于接收被分割的小视屏或小图像,并把接收到的小视屏或小图像转换成激光器驱动调制电路和微扫描镜控制电路能够识别和控制的视屏信号;它由四个视屏转换电路构成,每个视屏转换电路负责接收一个象限的小视屏或小图像的视屏信号,并同时传送该视屏信号给激光驱动调制模块和微扫描镜控制模块。 [0010] Screen said receiving means for converting the divided small video screen or a small image, and converts the received image into a small video screen or a small modulation circuit driving the laser and micro scanning mirror control circuit can identify and control signals Screen ; converting circuit which is constituted by four video screen, each video screen conversion circuit is responsible for receiving a signal quadrant Screen Screen small or small image, and simultaneously transmits the signal to a laser driver Screen modulation module and a micro scanning mirror control module. [0011] 所述的激光驱动调制模块用于接受来自视屏转换模块输出的视屏信号,用来控制激光光源模块中的激光器;它由四个激光驱动调制电路,分别与视屏转换模块中的四个视屏转换电路相对应,每个激光驱动调制电路只负责接收与它对应的视屏转换电路发来的视屏信号; [0011] The laser modulation driving means for receiving a signal from the Screen Screen conversion module output for controlling a laser in a laser light source module; it consists of four laser modulation driving circuit, respectively, and four Screen conversion module Screen conversion circuit corresponding to each laser drive circuit is only responsible for receiving and modulating its corresponding switching circuit Screen Screen signals sent;

[0012] 所述激光光源模块根据激光驱动调制模块的驱动控制信号完成激光投射工作,它是由四个呈2*2阵列方式排列的激光器组成,每个激光器与所述的激光驱动调制电路一一对应,只根据相应激光驱动调制电路的驱动控制信号来完成激光投射工作; [0012] The laser light source module to complete the work of the laser projector according to the driving control signal of the laser driver modulation module, which is a form of four 2 * 2 lasers arranged in an array, each of said laser and a laser drive modulation circuit a correspondence only to complete the work of the laser projector according to a driving control signal corresponding to the laser modulation driver circuit;

[0013] 所述的微扫描镜控制模块用于接收来自视屏转换模块发来的视屏信号,并根据得到视屏信号控制微扫描镜模块进行扫描工作;它是由四个微扫描镜控制电路构成,与所述的视屏转换电路对应; Micro scanning mirror means for receiving the control [0013] signal from the Screen Screen conversion module is sent, and the scan job according to the control signal to give micro scanning mirror Screen module; it is composed of four micro scanning mirror control circuit, Screen circuit corresponding to the conversion;

[0014] 所述的模拟微镜模块根据微扫描镜控制模块的控制命令实现行扫描和场扫描,它由四个呈2*2阵列方式排列的单片MEMS微扫描镜组成;每个单片MEMS微扫描镜对应一个微扫描镜控制电路,用于完成所对应象限图像或视屏的扫描。 [0014] The analog control command module micromirror micro scanning mirror control module implemented in accordance with the line and field scanned, which consists of four 2 * 2 form a single piece of MEMS scanning mirror arranged in an array; each monolithic MEMS micro-mirrors corresponding to scan a scanning micro-mirror control circuit, for scanning an image or video screen quadrant corresponding to complete.

[0015] 本发明的工作原理是这样的:步骤I中所述的图像分割,可以采用硬件模块实现,也可以通过软件来实现,已属现有技术,本发明不在累述;经过分割后的图像是分别位于第1、2、3、4象限的小图像,每个象限的图像都分别对应一组独立的微型激光扫描设备,每组独立的微型扫描设备完成各自的扫描工作,最后将图像投影在一块大的屏幕上;我们以一个1920xl080i60Hz的视屏为例做具体阐述,对于一个1920χ1080@60Ηζ的视屏,首先采用图像分割技术把图像分割模块分割成4个960χ540@60Ηζ的小视屏,这是四个小视屏分别位于图像的第1、2、3、4象限,每个象限的小视屏的分辨率和刷新率是这样的:每个小视屏均有540条水平扫描线,每条水平扫描线包含960个点,因此每个小视屏的激光调制频率为540x960x60 = 31. 104MHz ;对于每个单片MEMS微扫描镜来说,其行扫描的扫 [0015] The working principle of the present invention is such that: the image segmentation step I, the modules may be implemented in hardware, may be implemented by software, already prior art, the present invention is not tired; after having been separated images are respectively located 1,2,3,4 quadrant small images, images respectively corresponding to each quadrant a set of independent miniature laser scanning device, each independent micro scanning device scans to complete their work, the final image projected on a large screen; 1920xl080i60Hz a video screen we do specifically set forth as an example, for a video screen 1920χ1080 @ 60Ηζ, the first image segmentation using the image segmentation module is divided into four small 960χ540 @ 60Ηζ screen, which is Screen located four small 1,2,3,4 quadrant of the image, a small video screen resolution and refresh rate of each quadrant is such that: each of the small video screen has 540 horizontal scanning lines, each horizontal scanning line contains 960 points, the laser modulation frequency of each of the small video screen 540x960x60 = 31. 104MHz; for each individual of MEMS scanning mirror, the scanning lines which scan 频率只需为540x60 = 32. 4KHz的锯齿波,其场的扫描频率为60的锯齿波。 Simply frequency sawtooth 540x60 = 32. 4KHz, the scan frequency of the sawtooth field 60. 从上述数据可知,相对于每个小视屏来说,现有技术的微型激光扫描器件足以满足投影需求。 Seen from the above data, with respect to each small video screen, a miniature laser scanning device of the prior art is sufficient to meet the projected demand. 因此即使在空间距离很近的情况下,采用本发明所述的微型激光扫描投影设备,也可以实现高分辨率、大屏幕的投影效果。 Therefore, even in the case where the space close proximity, miniature laser scanning projection apparatus according to the present invention, the effect of high resolution can be achieved a projection, large screen. 由于本发明的模拟微镜模块中,每两个单片MEMS微扫描镜之间的间隙很小,投射在屏幕上时,四个象限图像之间的实际间隙小于1_,因此可忽略不计,不影响成像效果。 Since the micromirrors analog module of the present invention, the gap between each two micro-chip MEMS scanning mirror is very small, when projected on a screen, the actual gap between the four quadrants of the image is smaller than 1_, thus negligible, no impact imaging results. 整机工作起来实际就像四台独立但同步工作的小投影仪。 Machine work together like a small projector actually four separate but synchronized work.

[0016] 本发明由于采用了上述技术方案,具有如下优点: [0016] The present invention adopts the above technical solution has the following advantages:

[0017] I、利用现有技术水平的微型扫描投影器件和激光器,实现了高分辨率、大屏幕投影; [0017] I, the prior art horizontal micro scanning device and laser projection, to achieve a high-resolution, large screen projection;

[0018] 2、降低了对现有技术水平的微型扫描投影器件和激光器的性能要求; [0018] 2, reducing the performance requirements of the state of the art micro-device and the laser scanning projection;

[0019] 3、结构简单、操作简便,易于实现。 [0019] 3, the structure is simple, easy to operate, easy to implement.

附图说明[0020] 图I为本发明所用微型阵列式激光扫描投影设备的结构示意图; BRIEF DESCRIPTION OF schematic structural microarray laser scanning projection apparatus [0020] Figure I of the present invention is used;

[0021] 图2为本发明在锯齿波驱动波形下进行扫描的示意图; [0021] FIG. 2 is a schematic of the scanning sawtooth drive waveform in the present invention;

[0022] 图3为本发明采用的锯齿波波形图; [0022] FIG. 3 sawtooth waveform diagram employed in the present invention;

[0023] 图4为本发明在三角波驱动波形下进行扫描的示意图; [0023] FIG. 4 is a schematic diagram of scanning at the triangular wave drive waveform of the present invention;

[0024] 图5为本发明所采用的三角波波形图; [0024] FIG. 5 of the present invention, a triangular waveform of FIG employed;

[0025] 图6为本发明所用微型阵列式激光扫描投影设备的结构框图; [0025] Fig 6 a block diagram showing microarray laser scanning projection device of the present invention;

具体实施方式 Detailed ways

[0026] 下面结合附图和实施例对本发明作进一步说明:如图I-图6所示,它包括以下步骤: Drawings and embodiments of the present invention will be further described [0026] below with reference to: Figure I- FIG, 6 comprising the steps of:

[0027] I)将需投影的图像分割成2*2个独立的小视屏或小图像,所述的小视屏或小图像是根据图像的分布位置来分割的,所述的小视屏或小图像分别是分布于原图像第1、2、3、4象限的图像; [0027] I) The image to be projected into 2 * 2 independent small or small video screen image, a small video screen or a small image is distributed according to the position of the image segmentation, a small video screen or a small image They are distributed in the image of the original image 1,2,3,4 quadrant;

[0028] 2)将步骤I)得到的四个小视屏或小图像分别同时传输至微型阵列式激光扫描投影装置的视屏转换模块的输入端,所述的微型阵列式激光扫描投影装置用于将得到的小视屏或小图像,按照每个小视屏或小图像在原图像的分布位置,投影到屏幕上; [0028] 2) in step I) to give a small video screen or four small images are simultaneously transmitted to the input conversion module Screen microarray laser scanning projection apparatus, said microarray scanning laser projection means for small screen or obtained small images, each in a small video screen or a small image layout position of the original image projected onto the screen;

[0029] 所述的微型阵列式激光扫描投影装置,包括以下部件:视屏转换模块2、激光光源模块3、激光驱动调制模块4、模拟微镜模块6、微扫描镜控制模块5和屏幕7 ;视屏转换模块2输出端分别与激光驱动调制模块4和模拟微镜控制模块5的输入端连接,激光驱动调制模块4的输出端与激光器电源模块3的输入端连接,模拟微镜控制模块5的输出端与单片MEMS微扫描镜9的输入端连接,激光光源模块3发出的激光投射在单片MEMS微扫描镜9的可动反射镜面上,经可动反射镜面反射后,投射在屏幕上; [0029] The microarray laser scanning projection apparatus, comprising the following components: Screen conversion module 2, the laser light source module 3, a laser drive modulation module 4, module 6 analog micromirrors, micro scanning mirror 5 and a screen control module 7; Screen output of conversion module 2 are respectively the laser drive input terminal 4 and an analog modulation module micromirror control module 5 is connected to the output of the laser driver modulation module 4 is connected to the input terminal of the laser power module 3, the control module 5 analog micromirror after the output is connected to an input of a micro-chip MEMS scanning mirror 9, the laser projector 3 emits laser light source module in a single piece of MEMS scanning mirror of the movable mirror 9, reflected by the movable mirror, projected onto a screen ;

[0030] 所述的激光驱动调制模块4用于接受来自视屏转换模块2输出的视屏信号,用来控制激光光源模块3中的激光器8 ;它由四个激光驱动调制电路构成,分别与视屏转换模块2中的四个视屏转换电路相对应,每个激光驱动调制电路只负责接收与它对应的视屏转换电路发来的视屏信号; [0030] The laser drive module 4 for receiving the modulated signal from the Screen 2 Screen converter output module to control the laser light source 3 is a laser module 8; It consists of four laser modulation driving circuit, respectively Conversion Screen Screen four modules 2 corresponding to the conversion circuit, the modulation circuit driving each of the laser is only responsible for receiving its corresponding switching circuit Screen Screen signals sent;

[0031] 所述激光光源模块3根据激光驱动调制模块4的驱动控制信号完成激光投射工作,它是由四个呈2*2阵列方式排列的激光器9组成,每个激光器与所述的激光驱动调制电路对应,只根据相应激光驱动调制电路的驱动控制信号来完成激光投射工作; [0031] The laser light source module 3 to complete the work of the laser projector according to a driving signal of the laser driver modulation control module 4, which is composed of four 2 * 2 was arranged in an array composed of a laser 9, a laser driving each of said laser and modulation circuit corresponding to only the laser driving control signal according to a corresponding modulation circuit driving the laser projector work done;

[0032] 所述的微扫描镜控制模块5用于接收来自视屏转换模块2发来的视屏信号,并根据得到视屏信号控制微扫描镜模块进行扫描工作;它是由四个微扫描镜控制电路构成,与所述的视屏转换电路对应; [0032] The scanning micro-mirror control module 5 for receiving a signal from the Screen Screen module 2 is sent, and the scan job according to the control signal to give micro scanning mirror Screen module; it is composed of four micro scanning mirror control circuit configuration, corresponding to the viewscreen converting circuit;

[0033] 所述的模拟微镜模块6根据微扫描镜控制模块5的控制命令实现行扫描和场扫描,它由四个呈2*2阵列方式排列的单片MEMS微扫描镜9组成;每个单片MEMS微扫描镜9对应一个微扫描镜控制电路,用于完成所对应象限图像或视屏的扫描。 [0033] The analog module 6 micromirrors micro scanning mirror control module 5 commands implemented in accordance with the line and field scanned, which consists of four 2 * 2 was arranged in a monolithic array of MEMS scanning mirror 9 that; per single sheet of MEMS scanning mirror 9 corresponds to a scanning micro-mirror control circuit, for scanning the complete image or video screen corresponding to the quadrant.

[0034] 本发明所述的步骤I中所述的图像分割,可以采用硬件模块实现,也可以通过软件来实现,已属现有技术,本发明不在累述;本发明的工作原理是这样的:经过分割后的图像是分别位于第1、2、3、4象限的小图像,每个象限的图像都分别对应一组独立的微型激光扫描设备,每组独立的微型扫描设备完成各自的扫描工作,最后将图像投影在一块大的屏幕上;我们以一个1920χ1080@60Ηζ的视屏为例做具体阐述,对于一个1920χ1080@60Ηζ的视屏,首先采用图像分割技术把图像分割模块分割成4个960χ540@60Ηζ的小视屏,这是四个小视屏分别位于图像的第1、2、3、4象限,每个象限的小视屏的分辨率和刷新率是这样的:每个小视屏均有540条水平扫描线,每条水平扫描线包含960个点,因此每个小视屏的激光调制频率为540x960x60 = 31. 104MHz ;对于每个单片MEMS微扫描镜来说 [0034] The image segmentation step of the present invention in the I, the modules may be implemented in hardware, may be implemented by software, already prior art, the present invention is not tired; working principle of the present invention is such that : after the image of the divided small images are respectively located 1,2,3,4 quadrants, each quadrant of the image respectively corresponding to a separate set of miniature laser scanning devices, each independent of their respective miniature scanning device scanning work, the final image is projected on a large screen; we have to screen a 1920χ1080 @ 60Ηζ example do specifically addressed, for a screen 1920χ1080 @ 60Ηζ, the first use of image segmentation technique to image segmentation module is divided into four 960χ540 @ 60Ηζ small screen, and four small video screen which is located 1,2,3,4 quadrant of the image, a small video screen resolution and refresh rate of each quadrant is such that: each of the small video screen has 540 horizontal scanning lines, each horizontal scan line includes 960 points, the laser modulation frequency of each of the small video screen 540x960x60 = 31. 104MHz; for each individual MEMS scanning mirror is a micro 其行扫描的扫描频率只需为540x60 = 32. 4ΚΗζ的锯齿波,其场的扫描频率为60的锯齿波。 Scanning line scanning frequency of the sawtooth only 540x60 = 32. 4ΚΗζ, the scan frequency of the sawtooth field 60. 从上述数据可知,相对于每个小视屏来说,现有技术的微型激光扫描器件足以满足投影需求。 Seen from the above data, with respect to each small video screen, a miniature laser scanning device of the prior art is sufficient to meet the projected demand. 因此即使在空间距离很近的情况下,采用本发明所述的微型激光扫描投影设备,也可以实现高分辨率、大屏幕的投影效果。 Therefore, even in the case where the space close proximity, miniature laser scanning projection apparatus according to the present invention, the effect of high resolution can be achieved a projection, large screen. 由于本发明的模拟微镜模块中,每两个单片MEMS微扫描镜之间的间隙很小,投射在屏幕上时,四个象限图像之间的实际间隙小于1_,因此可忽略不计,不影响成像效果。 Since the micromirrors analog module of the present invention, the gap between each two micro-chip MEMS scanning mirror is very small, when projected on a screen, the actual gap between the four quadrants of the image is smaller than 1_, thus negligible, no impact imaging results. 整机工作起来实际就像四台独立但同步工作的小投影仪。 Machine work together like a small projector actually four separate but synchronized work.

[0035] 本发明方法中所用的单片MEMS微扫描镜为设置有一个水平轴和一个竖直轴的双轴结构,单片MEMS微扫描镜上的可动反射镜面在控制电路的控制下,绕水平轴和竖直轴进行偏转,当可动反射镜面绕水平轴偏转时,实现行扫描,当可动反射镜面绕竖直轴偏转时,实现场扫描。 [0035] The method of the present invention is used in the micro-chip MEMS scanning mirror is provided with a horizontal axis and a vertical axis of the shaft structure, the movable mirror in the micro-chip MEMS scanning mirror controlled by the control circuit, about a horizontal axis and vertical axis deflection, when the movable mirror about the horizontal deflection axis, to achieve scanning line, when the movable about a vertical axis of the deflection mirror, to achieve scanning field.

[0036] 本发明方法所述的可动反射镜面绕轴偏转的机械偏转角度为(0-45)度。 The method according to the invention the movable mirror about the axis of the mechanical deflection angle of the deflection [0036] The present is (0-45) degrees.

[0037] 本发明所述的模拟微镜模块的中心线与激光光源模块的中心线之间的夹角大于O度且小于90度。 [0037] The angle between the center line of the laser light source module micromirror analog module of the present invention is greater than O and less than 90 degrees.

[0038] 本发明所述的模拟微镜模块的中心线与激光光源模块的中心线之间的夹角为35度-55度。 [0038] The angle between the center line of the laser light source module micromirror analog module of the present invention is 35 degrees -55 degrees.

[0039] 本发明所述的模拟微镜模块的中心线与激光光源模块的中心线之间的夹角为40度-50度。 [0039] The angle between the center line of the laser light source module micromirror analog module of the present invention is 40 degrees -50 degrees.

[0040] 本发明所述的模拟微镜模块的中心线与激光光源模块的中心线之间的夹角为45度。 [0040] The angle between the center line of the laser light source module micromirror analog module of the present invention is 45 degrees.

[0041] 所述的视屏转换模块用于接收被分割的小视屏或小图像,并把接收到的小视屏或小图像转换成激光器驱动调制电路和微扫描镜控制电路能够识别和控制的视屏信号;它由四个视屏转换电路构成,每个视屏转换电路负责接收一个象限的小视屏或小图像的视屏信号,并同时传送该视屏信号给模拟微镜模块,所述的模拟微镜模块由4片双轴(水平轴和竖直轴)MEMS微扫描镜组成2X2阵列,其中每片双轴MEMS微扫描镜只完成单个象限扫描,四片双轴MEMS微扫描镜分别完成四个象限的扫描。 [0041] Screen said receiving means for converting the divided small video screen or a small image, and converts the received image into a small video screen or a small modulation circuit driving the laser and micro scanning mirror control circuit can identify and control signals Screen ; it consists of four Screen conversion circuits, each responsible Screen Screen signal converting circuit receiving a small video screen or a quadrant of the small picture, and simultaneously transmits the signal to the analog micromirror Screen module, said module consists of 4 analog micromirrors biaxially (horizontal and vertical axes) of MEMS scanning mirrors 2X2 array, wherein each micro chip biaxial MEMS scanning mirror scans to complete only a single quadrant, four micro biaxial MEMS scanning mirror scans were completed four quadrants. 通过组合,2X2阵列式模拟微镜模块即可完成单片双轴微扫描镜同样可以完成的四象限扫描,但其扫描角度和范围却是单片双轴MEMS微扫描镜的4倍多。 By combining, 2X2 analog micromirror array module to complete the four-quadrant scanning mirror scanning micro-chip can also biaxially completed, but the scanning angle and the range is more than four times the micro-chip biaxial MEMS scanning mirror.

[0042] 每个激光器重包括红、绿、蓝三色激光器和用于完成光束聚焦和合束的光学元件。 [0042] Each laser comprises a heavy red, green, and blue laser and an optical element for focusing the beam to complete harmony beam.

[0043] 模拟微镜模块的中心线与激光光源模块阵列的中心线成45°夹角。 [0043] Analog micromirror module centerline and the centerline of the array laser light source module angle of 45 °. 激光光源模块发出的激光投射在模拟微镜模块的可动反射镜上,被折射90°后投射在屏幕上。 Laser projector emits laser light source module on an analog micromirrors of the movable mirror module, after being refracted 90 ° projected onto a screen.

[0044] 本发明所述的微型阵列式激光扫描投影装置的单片MEMS微扫描镜设置有一个水平轴和一个竖直轴,微扫描镜控制电路控制MEMS微扫描镜上的可动反射镜面绕水平轴和竖直轴进行偏转,当可动反射镜面绕水平轴偏转时,实现行扫描,当可动反射镜面绕竖直轴偏转时,实现场扫描;所述的可动反射镜面的机械偏转角度为O度至45度。 [0044] Micro Monolithic MEMS scanning mirror disposed microarray laser scanning projection apparatus according to the present invention has a horizontal axis and a vertical axis, the scanning micro-mirror control circuit controls the movable mirror of MEMS scanning mirror about horizontal and vertical axes deflection, when the movable mirror about the horizontal axis when the deflection, to achieve scanning line, when the movable mirror about the vertical deflection axis, to achieve a scan field; the mechanically movable deflecting mirror O is the angle to 45 degrees.

[0045] 如图3所示:微扫描镜控制模块中的微扫描镜控制电路采用锯齿波波形来驱动MEMS微扫描镜的水平轴和竖直轴,其中X通道为行扫描通道,即驱动水平轴偏转,使单片MEMS微扫描镜完成水平行扫描,Y通道为场扫描通道,即驱动竖直轴偏转,使单片MEMS微扫描镜完成场扫描。 [0045] Figure 3: Scanning micro-mirror control module micro scanning mirror control circuit uses a sawtooth waveform that drives the horizontal and vertical axes of MEMS scanning mirror, wherein X is a channel scan line channel, i.e., drive levels axis deflection, so that the micro-chip MEMS scanning mirror complete horizontal scanning line, Y channel is a channel scan field, i.e., the vertical axis drive is deflected so that the micro-chip MEMS scanning mirror complete field scan. 以扫描第二象限的MEMS微扫描镜的锯齿波驱动波形为例,无驱动信号时,MEMS微扫描镜的投射点位于屏幕的坐标原点位置。 Sawtooth drive waveform to scan the second quadrant of MEMS scanning mirror, for example, when no drive signal, the projection point of MEMS scanning mirror at the origin of the screen. 施加驱动信号后,负责扫描第二象限的MEMS微扫描镜的投射光首先位于每个象限的左上方,并随着MEMS微扫描镜的可动反射面的偏转逐渐向屏幕的右上方扫描,当完成一行水平扫描时,单片MEMS微扫描镜的投射点会快速回到屏幕的左侧,并在Y通道驱动信号的作用下,下移一段位置,作为下一条水平扫描线的起始点,如此反复,直至该象限的图像扫描完毕。 After the drive signal is applied, responsible for scanning the second quadrant of MEMS scanning mirror projection light of each first upper left quadrant, and with the deflection of the movable reflective surface of MEMS scanning mirror scanning gradually to the upper right of the screen, when upon completion of the horizontal scanning line, the projection points of a single MEMS micro scanning mirror will quickly return to the left side of the screen, and the Y channel at the action of the drive signal, the position down period, one horizontal scanning line as the starting point, so It is repeated until the image is scanned quadrant.

[0046] 本发明所述的微型阵列式激光扫描投影装置的微扫描镜控制电路的驱动波还可以为三角波,所述的微扫描镜控制电路内的驱动波为锯齿波或三角波。 [0046] The scanning micro-mirror microarray laser scanning projection apparatus according to the present invention, the drive wave control circuit may also be a triangular wave, a micro wave driving the scanning mirror control circuit is a sawtooth wave or a triangular wave. 如图4-5所示MEMS微扫描镜采用三角波扫描示意图;其中图5为单片MEMS微扫描镜的三角波驱动波形,其中X通道为行扫描通道,Y通道为场扫描通道。 As shown in Figure 4-5 micro MEMS scanning mirror scanning a schematic triangular wave; Figure 5 is a triangular wave of a single piece of MEMS scanning mirror drive waveform, wherein X is a channel scan line channel, Y-channel of the channel field scanning. 我们以负责扫描第II象限的微扫描镜为例进行阐述,无驱动信号时,微扫描镜的投射光指向屏幕的坐标原点位置。 We scanned the quadrant II to be responsible for micro scanning mirror set forth as an example, when no drive signal, the micro-projection light scanning mirror pointing coordinate origin position of the screen. 施加驱动信号后,微扫描镜首先指向屏幕的第二象限的左上方,从左至右完成第一行的水平扫描;完成一条水平扫描线后,在场扫描信号的驱动下,微扫描镜的可动反射镜面绕竖直轴偏转,使得投射在屏幕上的光点下移一个位置,描匀速反向进行第二行像素点的水平扫描(即从右向左),当微扫描镜完成第二条扫描线,并回到屏幕左侧时,开始第三行的正向扫描(从左至右)。 After the drive signal is applied, the micro first scanning mirror in the second quadrant of the upper left point of the screen, to complete a first horizontal scanning line from left to right; After completion of a horizontal scan line, the presence of the scan driving signal, the micro-scanning mirror may be movable deflecting mirror about a vertical axis, so that the light spot is projected on the screen down one position, described reverse uniform horizontal scanning line of a second pixel (i.e., right to left), when the completion of the second micro-scanning mirror when the scan lines, and back to the left side of the screen to begin the forward scan of the third row (from left to right). 如此周而复始。 Again and again. 这样,在三角波驱动下MEMS微扫描镜的行扫描频率降低一半。 Thus, when the triangular-wave drive of MEMS scanning mirror line scanning frequency reduced by half.

[0047] 本发明的视屏分割模块即可采用软件来实现,也可采用硬件来实现,已属于现有技术,故本发明再此不再累述。 Screen segmentation module [0047] according to the present invention can be implemented in software, may also be implemented in hardware, already belongs to the prior art, the present invention therefore will not be described herein again.

Claims (6)

  1. 1. 一种阵列式分区投影方法,其特征在于:它包括以下步骤: 1)将需投影的图像分割成2*2个独立的小视屏或小图像,所述的小视屏或小图像是根据图像的分布位置来分割的,所述的小视屏或小图像分别是分布于原图像第1、2、3、4象限的图像; 2)将步骤I)得到的四个小视屏或小图像分别同时传输至微型阵列式激光扫描投影装置的视屏转换模块的输入端,所述的微型阵列式激光扫描投影装置用于将得到的小视屏或小图像,按照每个小视屏或小图像在原图像的分布位置,投影到屏幕上; 所述的微型阵列式激光扫描投影装置,包括以下部件:视屏转换模块、激光光源模块、激光驱动调制模块、模拟微镜模块、微扫描镜控制模块和屏幕;视屏转换模块输出端分别与激光驱动调制模块和模拟微镜模块的输入端连接,激光驱动调制模块的输出端与激光器电源模块 An array partitioning projection method, characterized in that: it comprises the following steps: 1) the image to be projected is divided into two separate small 2 * Screen or small image, the small image is a video screen or small segmenting the image layout position of the small video screen or a small image in the original image are distributed 1,2,3,4 quadrant image; 2) in step I) to give a small video screen or four small images, respectively, Screen simultaneously transmitted to the input conversion module microarray laser scanning projection apparatus, the microarray laser scanning projection apparatus for small video screen or a small image is obtained, for each small video screen or a small image in the original image, distribution position, projected onto the screen; microarray laser scanning projection apparatus, comprising the following components: screen conversion module, a laser light source module, the laser driver modulation module, an analog micromirrors module, control module and a micro-screen scanning mirror; screen converting module output terminals respectively, and an analog laser driver modulation module micromirror connected to the input module, the laser driver modulated output of the laser module of the power module 的输入端连接,模拟微镜模块的输出端与MEMS微扫描镜的输入端连接,激光光源模块发出的激光投射在MEMS微扫描镜的可动反射镜面上,经可动反射镜面反射后,投射在屏眷上; 所述的视屏转换模块用于接收被分割的小视屏或小图像,并把接收到的小视屏或小图像转换成激光器驱动调制电路和微扫描镜控制电路能够识别和控制的视屏信号;它由四个视屏转换电路构成,每个视屏转换电路负责接收一个象限的小视屏或小图像的视屏信号,并同时传送该视屏信号给激光驱动调制模块和微扫描镜控制模块; 所述的激光驱动调制模块用于接受来自视屏转换模块输出的视屏信号,用来控制激光光源模块中的激光器;它由四个激光驱动调制电路构成,分别与视屏转换模块中的四个视屏转换电路相对应,每个激光驱动调制电路只负责接收与它对应的视屏转换电路发来的 After the input terminal, an analog output terminal of the micromirror module connected to the input terminal of MEMS scanning mirror, laser light emitted from laser light source module on the projection of MEMS scanning mirror of the movable mirror, reflected by the movable mirror, the projection dependents on the screen; screen said receiving means for converting the divided small video screen or a small image, and converts the received image into a small video screen or a small modulation circuit driving the laser and micro scanning mirror control circuit can identify and control Screen signal; Screen it consists of four converter circuit, each responsible Screen Screen signal converting circuit receiving a small video screen or a quadrant of the small picture, and simultaneously transmits the signal to a laser driver Screen modulation module and a micro scanning mirror control module; the modulating said laser drive module for receiving signals from a Screen Screen output conversion module, for controlling the laser light source module is a laser; it consists of four laser modulation driving circuit, respectively, and four Screen Screen conversion module converting circuit Correspondingly, each of the laser driver modulation circuit is only responsible for receiving its corresponding switching circuit sent Screen 视屏信号; 所述激光光源模块根据激光驱动调制模块的驱动控制信号完成激光投射工作,它是由四个呈2*2阵列方式排列的激光器组成,每个激光器与所述的激光驱动调制电路一一对应,只根据相应激光驱动调制电路的驱动控制信号来完成激光投射工作; 所述的微扫描镜控制模块用于接收来自视屏转换模块发来的视屏信号,并根据得到视屏信号控制模拟微镜模块进行扫描工作;它是由四个微扫描镜控制电路构成,与所述的视屏转换电路对应; 所述的模拟微镜模块根据微扫描镜控制模块的控制命令实现行扫描和场扫描,它由四个呈2*2阵列方式排列的单片MEMS微扫描镜组成;每个单片MEMS微扫描镜对应一个微扫描镜控制电路,用于完成所对应象限图像或视屏的扫描;单片MEMS微扫描镜为设置有一个水平轴和一个竖直轴的双轴结构,单片MEMS微扫描镜上的可动 Screen signal; completion of the laser light source module driving the laser projector operates according to a control signal modulating the laser drive module, which is composed of four 2 * 2 was arranged in an array of lasers, each laser and the laser drive circuit a modulation a correspondence only to complete the drive control signal corresponding to the laser modulation circuit driving the laser projector work; scanning micro mirror according to a control means for receiving signals from a Screen Screen sent by the conversion module, and an analog signal control Screen the obtained micromirror scan job module; it is composed of four micro scanning mirror control circuit, said circuit corresponding to the conversion Screen; micromirror module implements the analog line and field scanned micro-scanning mirror in accordance with the control command of the control module, it It was arranged by the four 2 * 2 an array of MEMS scanning mirror monolithic composition; each individual MEMS micro-mirrors corresponding to scan a scanning micro-mirror control circuit, for scanning an image or video screen quadrant corresponding to completion; monolithic MEMS scanning micro-mirror is provided with a horizontal axis and a vertical axis of the shaft structure, the movable micro-chip MEMS scanning mirror 反射镜面在控制电路的控制下,绕水平轴和竖直轴进行偏转,当可动反射镜面绕水平轴偏转时,实现行扫描,当可动反射镜面绕竖直轴偏转时,实现场扫描;可动反射镜面绕轴偏转的机械偏转角度为(0-45)度。 Mirror controlled by the control circuit, the horizontal and vertical axes around a deflection, when the movable mirror about the horizontal deflection axis, to achieve scanning line, when the movable mirror about the vertical deflection axis, to achieve a scan field; the movable mirror about the axis deflection of the mechanical deflection angle (0-45) degrees.
  2. 2.如权利要求I所述的阵列式分区投影方法,其特征在于:所述的模拟微镜模块的中心线与激光光源模块的中心线之间的夹角大于O度且小于90度。 2. The array partitioning projection method according to claim I, wherein: the angle between the center line of the laser light source module analog micromirrors O module is larger than and less than 90 degrees.
  3. 3.如权利要求2所述的阵列式分区投影方法,其特征在于:所述的模拟微镜模块的中心线与激光光源模块的中心线之间的夹角为35度-55度。 Partitioning the array projection method as claimed in claim 2, wherein: the angle between the center line of the laser light source module is an analog module micromirrors 35 degrees -55 degrees.
  4. 4.如权利要求2所述的阵列式分区投影方法,其特征在于:所述的模拟微镜模块的中心线与激光光源模块的中心线之间的夹角为40度-50度。 The array partitioning projection method according to claim 2, wherein: the angle between the center line of the laser light source module is an analog module micromirrors 40 degrees -50 degrees.
  5. 5.如权利要求2所述的阵列式分区投影方法,其特征在于:所述的模拟微镜模块的中心线与激光光源模块的中心线之间的夹角为45度。 The array partitioning projection method according to claim 2, wherein: the angle between the center line of the laser light source module simulation module micromirrors is 45 degrees.
  6. 6.如权利要求1、2、3、4或5所述的阵列式分区投影方法,其特征在于:所述的微扫描镜控制电路内的驱动波为锯齿波或三角波。 6. The array partitioning projection method of claim 4 or claim 5, wherein: said micro scanning mirror drive control circuit in the sawtooth wave or a triangular wave.
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