WO2006119689A1 - Systeme de projection d’image - Google Patents

Systeme de projection d’image Download PDF

Info

Publication number
WO2006119689A1
WO2006119689A1 PCT/CN2006/000851 CN2006000851W WO2006119689A1 WO 2006119689 A1 WO2006119689 A1 WO 2006119689A1 CN 2006000851 W CN2006000851 W CN 2006000851W WO 2006119689 A1 WO2006119689 A1 WO 2006119689A1
Authority
WO
WIPO (PCT)
Prior art keywords
mirror
illuminator
layer
scanning
rotating mirror
Prior art date
Application number
PCT/CN2006/000851
Other languages
English (en)
Chinese (zh)
Inventor
Dongzuo Yang
Original Assignee
Dongzuo Yang
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Dongzuo Yang filed Critical Dongzuo Yang
Publication of WO2006119689A1 publication Critical patent/WO2006119689A1/fr

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Classifications

    • 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

Definitions

  • the present invention is a control system and, more particularly, relates to a working system for controlling a high definition image projection apparatus. Background technique
  • a video developing device which is composed of a pixel storage controller, a light-emitting driving board, a light collecting output device, an optical scanner and an image display screen, and is driven by the light-emitting device.
  • the board is provided with three primary color light-emitting units of the same number of rows or columns of pixels, each of the three primary color light-emitting units is composed of three primary color light-emitting devices, and the light-collecting output device is composed of a plurality of tree-shaped light collections having three branches.
  • the number of the tree concentrators is the same as the number of the three primary color illuminating units.
  • Each of the dendritic concentrators corresponds to one of the three primary illuminating units, and the light emitted by the three single primary illuminating devices is from the corresponding tree.
  • the three branches of the fiber concentrator enter the tree fiber concentrator for color mixing, and the output ends of all the tree fiber concentrators are in order
  • the image display screen is composed of a plurality of fibers arranged in a regular manner, and the number of fibers is an integer square speed relationship with the number of pixels of one frame of image. ⁇ In this way, thousands of light-emitting units are required as illuminators. The cost of raw materials is huge. At the same time, the installation of thousands of parts is quite complicated.
  • the tree-shaped fiber concentrator The production is quite difficult, and the effect of the light transmitted by the optical fiber is also difficult to achieve.
  • an image projection device that uses prism reflection to provide an optical path can be designed, including a plurality of illuminators, a rotating mirror, a display screen, and a multi-edge multi-layer mirror for each layer, and a single mirror of each layer is opposite.
  • the angle of inclination of the rotating shaft of the rotating mirror is different from that of other mirrors of the same layer.
  • Each illuminator corresponds to each mirror layer of the multi-layer multi-layer mirror, and the light emitted by the illuminator is reflected by the rotating mirror, and is injected.
  • On the display screen multiple illuminators start horizontally from the upper left corner of the area scanned by each other.
  • Chinese Patent No. 02231240. 4 discloses a scanning projection apparatus for reconstructing and projecting an image frame on a screen according to an input signal, the image frame having a two-dimensional structure composed of a plurality of pixels. a pixel array, each pixel corresponding to one on the screen Having address coordinates and a specific position of a scan line coordinate, wherein the scan projection device synchronously outputs a plurality of light beams corresponding to the number of pixels in the direction in which the address coordinates extend in order to be sequentially projected on different scan line coordinates. The location of the address coordinates is scanned one by one to form an image frame.
  • the invention outputs the image frame by controlling the luminous intensity of the light source component, and performs column-by-column scanning together with the reflection unit, which has the advantages of effectively controlling the volume of the light source component, but the reflection unit is a single-layer multi-mirror type, which is limited by the invention. , can not make a light that corresponds to a row of pixels on the screen, so it is more difficult to achieve control. Summary of the invention
  • the object of the present invention is to provide an image projection working system, which is directed to an image projection device design that utilizes multi-layer prism reflection to provide an optical path, can calculate the incident angle of the illuminator, control the pixel point release frequency, and design a reflection for the image.
  • the rotating mirror system controls the rotation of the rotating mirror and enables it to display in high definition. It has a high degree of matching, and it can be extended to control various reflective projection systems.
  • An image projection working system for realizing the object of the present invention comprises a display screen, a signal receiving system, and a signal separation processing circuit, characterized in that it further comprises an illuminator control system, three or more illuminators, a mirror control system and a rotating mirror rotating under the control thereof; the signal receiving system receives the image signal and transmits the image signal to the signal separation processing circuit, the signal separation processing circuit includes a synchronous control circuit for illuminator illumination and prism rotation; The signal separation processing circuit is connected to the illuminator control system and the rotating mirror control system; the illuminator control system is connected to and controls the illuminator to emit light to the rotating mirror and then reflected to the screen; the rotating mirror is a multi-edge multi-layer mirror, each layer of the single The angle of inclination of one mirror relative to the axis of rotation of the mirror is different from other mirrors of the same layer.
  • An image projection working system for achieving the object of the present invention further comprising a feedback system connected to the rotating mirror and the rotating mirror control system, wherein the feedback system is light sensitive disposed in front of the display screen An element that records a light signal reflected by the illuminator through the mirror and generates a feedback signal.
  • An image projection working system embodying the object of the present invention the signal receiving system receives a video signal externally, and the illuminator control system includes an illuminator driving and compensating circuit.
  • An image projection working system for achieving the object of the present invention wherein the number of lines of light finally incident on the display screen is at least 750 lines, the rotating mirror is tapered, and the illuminators are red, green and blue. LED or red, green, blue three-color laser.
  • each illuminator corresponds to each mirror layer of the multi-layer multi-layer mirror; when working, each layer of illuminators emits light at the same time, and the light emitted by each illuminator is scanned and displayed by the first mirror of the corresponding mirror layer.
  • the screen forms respective first row scan lines corresponding to the respective illuminators, and then, when the mirror rotates to the second mirror of each layer, the mirror is reflected to the display screen to form respective second row scan lines corresponding to the illuminators, and the mirror is turned Rotating in turn, the light emitted by each illuminator is reflected by each corresponding layer mirror to form a scanning line on the display screen one by one. After the rotating mirror rotates one turn, all the illuminators are reflected on the display screen corresponding to all the mirrors to form a picture.
  • Complete image screen The number of lines imaged on the display screen is at least 750 lines.
  • the system scans the scanning surface 25 times or more in a unit time of 1 second, forming a sweep of 25 times or more per second. Scanning frequency projection surface.
  • the rotating mirror is a multi-edge multi-layer mirror divided into 20 layers, 54 mirrors per layer, and the inclination angle of each mirror is different.
  • the inclination angles of the mirrors are different from each other; each illuminator corresponds to a layer mirror of the multi-layer multi-layer mirror, and the light emitted by each illuminator is reflected by the multi-layer multi-layer mirror and then incident on the display screen to form an image.
  • the signal receiving system accepts the signal and inputs it to the signal separation
  • the circuit is separated into three primary color signals and input into the illuminator.
  • the illuminator control system controls the light emitted by the first illuminator according to the signal to reflect the first layer of the first mirror of the rotating mirror to the display screen to form the first 1920 sites.
  • the scanning line at this time, the rotating mirror control system controls the rotating mirror to rotate through the first mirror of the first layer, and the first illuminator emits the second mirror of the first layer of the rotating mirror to reflect the display to form a second 1920 position
  • the scanning line of the point; the light emitted by the first illuminator sequentially performs the reflection scanning of the first layer of the multi-layer multi-layer mirror, and scans 54 scanning lines on the display screen; after the first illuminator completes the scanning of the first layer
  • the first illuminator is turned off, the illuminator control system controls the second illuminator to turn on the illuminating, and the light emitted by the second illuminator is reflected by the second layer of the second mirror of the rotating mirror to form the 55th scanning
  • the feedback system processes the optical signal by the sensing component and converts it into an electrical signal and sends it to the rotating mirror control system to adjust the rotational speed of the rotating mirror to reflect the light to the screen.
  • Uniform and stable The system completes scanning of the scanning surface 30 times in a unit time of 1 second, forming 30 frames, and the standard is 1080P high-definition display.
  • the prism projection device can be controlled to reflect pixels with a high order of magnitude, and the feedback and compensation correction performance is good, so that the video display effect is very clear; in addition, the control circuit is less, and does not need High integration, high reliability; At the same time, the position of the light-emitting device is fixed, the position is less moved, the mirror structure of the multi-edge multi-face mirror is simple, the manufacturing is convenient, and the cost is low; the whole control system is small in size and matched High, and wide, it can control a variety of projection devices that use reflection imaging.
  • Figure 1 is a schematic view of the system of the present invention
  • Figure 2 is a schematic illustration of the operation of an embodiment of the present invention.
  • the signal receiving system is connected to a signal separation processing circuit, the signal separation processing circuit is connected to the illuminator control system and the rotating mirror control system; and the illuminator control system has an amplification, stabilization, and denoising circuit;
  • the input video signal can be processed and converted into a voltage and current signal and the illuminator is controlled to emit light to the rotating mirror;
  • the rotating mirror control system is composed of a rotating mirror control and a motor driving circuit, which connects and controls the rotation of the rotating mirror;
  • the mirror is a multi-edge multi-layer mirror, and the angle of inclination of the single mirror of each layer with respect to the rotating shaft of the rotating mirror is different from that of other mirrors of the same layer; the plurality of illuminators are placed at a fixed position, so that the emitted light can be just turned Mirrored and reflected to the screen.
  • a feedback system is also provided in the rotating mirror and the rotating mirror control system.
  • the feedback system processes the optical signal by the sensing component and converts it into an electrical signal to be sent to the rotating mirror control system, and adjusts the rotational speed of the rotating mirror so that the light reflected to the screen is evenly stabilized.
  • FIG. 2 shows a specific embodiment of the present invention
  • the illuminator, the multi-layer multi-layer rotating mirror 5 has 20 layers (four layers are shown), and the illuminator is provided with 20 (four in the figure) corresponding to each mirror of the multi-layer multi-layer mirror 5, respectively.
  • the number of each layer of the multi-edge multi-layer mirror is 54 (only 10 mirrors are shown as a schematic illustration in the drawing), and the entire multi-edge multi-layer mirror is tapered, and the inclination angles of any mirrors are different from each other;
  • the illuminator emits light at a frequency of 1920 times per unit of scanning per unit time.
  • 1080 video signals are input from the signal receiving system to the signal separation power circuit, and are separated into three primary color signals and input into the illuminator, and a pulse control signal is sent to the rotating mirror control system.
  • the illuminator uses LEDs.
  • a focusing lens is disposed in front of the illuminator, and the rotating mirror starts to work when the LED emits light, and the light 4 emitted from the LED illuminators 6, 7, 8, 9 passes through the corresponding layer of the rotating mirror 5, the first mirror 11, 21 , 31, 41 reflected to the display screen 3 to form a respective first 1920 points of scanning lines, at this time the rotating mirror 5 is rotated through the layers of the second mirror 12, 22, 32, 42, each LED illuminator is turned The second mirror of the corresponding layer of the mirror is reflected to the display screen 3 to form a scanning line of the second 1920 points reflected by the corresponding layer; the light emitted by each of the LED illuminators 6, 7, 8, 9 completes the multi-layer multi-layer mirror
  • the reflection scan scans the corresponding 54 scan lines on the display screen 3; the system completes the reflection scanning operation of the 20-layer mirror corresponding to the multi-layer multi-layer mirror of 20 LED illuminators, and displays a total scan on the display screen 3. 1080 lines Forming
  • the feedback system of the present embodiment uses a photosensitive element mounted in front of the screen to transmit a signal to the mirror control system, corrects the pulse signal sent by the signal separation processing circuit to the mirror system, and adjusts the rotational speed to ensure a uniform and stable image.

Abstract

L’invention concerne un système de commande pour la projection d’image. Le système, conçu en fonction du dispositif de projection d’image, utilise la réflexion d’un prisme multicouche pour fournir un chemin optique. Le système peut calculer l’angle d’incidence d’un illuminateur et contrôler la fréquence de décharge des pixels. La configuration du système comprend un module de commande d’illuminateur, au moins trois illuminateurs, un module de commande de miroir rotatif et un miroir rotatif commandé par celui-ci. Un module de réception de signal reçoit des signaux d’image et les transfère à un circuit de séparation de signal qui comprend un circuit de commande synchrone régulant l’éclairage de l’illuminateur et la rotation du prisme. Le circuit de séparation de signal est connecté au module de commande d’illuminateur et au miroir rotatif. Le module de commande d’illuminateur est relié à l’illuminateur et régule son éclairage sur le miroir rotatif, qui est ensuite réfléchi vers l’écran. Le miroir rotatif est un miroir à face multicôte et multicouche, et l’angle d’inclinaison entre le miroir à face unique de chaque couche et l’axe du miroir rotatif est différent de celui des autres miroirs de la même couche. Le système possède une excellente fonction de couplage et sert généralement à commander divers dispositifs de projection.
PCT/CN2006/000851 2005-05-12 2006-04-29 Systeme de projection d’image WO2006119689A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200510034546.X 2005-05-12
CNB200510034546XA CN100397880C (zh) 2005-05-12 2005-05-12 图像投影的工作系统

Publications (1)

Publication Number Publication Date
WO2006119689A1 true WO2006119689A1 (fr) 2006-11-16

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PCT/CN2006/000851 WO2006119689A1 (fr) 2005-05-12 2006-04-29 Systeme de projection d’image

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CN (1) CN100397880C (fr)
WO (1) WO2006119689A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210364605A1 (en) * 2020-05-19 2021-11-25 Gm Cruise Holdings Llc Polygon scanning mirror for lidar beam scanning

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102193283A (zh) * 2010-03-06 2011-09-21 富港电子（东莞）有限公司 投影装置
CN107526208A (zh) * 2016-06-21 2017-12-29 上海易景信息科技有限公司 光线反射显示系统及方法
CN110927698A (zh) * 2019-10-26 2020-03-27 深圳奥锐达科技有限公司 一种激光扫描装置以及扫描方法

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US5534950A (en) * 1993-10-04 1996-07-09 Laser Power Corporation High resolution image projection system and method employing lasers
JP2000249979A (ja) * 1999-03-02 2000-09-14 Seiko Epson Corp 投写型表示装置及びこれに用いられるプリズム
CN1580867A (zh) * 2003-08-14 2005-02-16 台达电子工业股份有限公司 数字光处理投影系统及其投影方法

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JP2854801B2 (ja) * 1994-03-11 1999-02-10 日本電気精器株式会社 バーコードシンボルの読取装置
CN1370005A (zh) * 2001-02-16 2002-09-18 黄耕 一种视频显像装置
CN1296747C (zh) * 2002-12-03 2007-01-24 中国科学院长春光学精密机械与物理研究所 扫描方式形成面光源的方法，面光源及其激光投影电视
CN1438510A (zh) * 2003-01-08 2003-08-27 王青山 一种分区多行扫描式激光投影机

Patent Citations (3)

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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
JP2000249979A (ja) * 1999-03-02 2000-09-14 Seiko Epson Corp 投写型表示装置及びこれに用いられるプリズム
CN1580867A (zh) * 2003-08-14 2005-02-16 台达电子工业股份有限公司 数字光处理投影系统及其投影方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210364605A1 (en) * 2020-05-19 2021-11-25 Gm Cruise Holdings Llc Polygon scanning mirror for lidar beam scanning

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CN100397880C (zh) 2008-06-25
CN1688161A (zh) 2005-10-26

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