SI20393A - Method and device for generation of motion or motionless coloured images - Google Patents

Method and device for generation of motion or motionless coloured images Download PDF

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SI20393A
SI20393A SI9900202A SI9900202A SI20393A SI 20393 A SI20393 A SI 20393A SI 9900202 A SI9900202 A SI 9900202A SI 9900202 A SI9900202 A SI 9900202A SI 20393 A SI20393 A SI 20393A
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Slovenia
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light
mirror
optical system
smaller light
modulated
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SI9900202A
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Slovenian (sl)
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Mario Bojić
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Mario Bojić
Šuman Janja
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Priority to SI9900202A priority Critical patent/SI20393A/en
Priority to PCT/HR2000/000030 priority patent/WO2001017273A1/en
Priority to AU67158/00A priority patent/AU6715800A/en
Publication of SI20393A publication Critical patent/SI20393A/en

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    • 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

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  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Video Image Reproduction Devices For Color Tv Systems (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

The subject of invention is a method and device for generation of motion and motionless coloured images by using modular laser beams of red, blue and green colour combined into a light spectrum, which is divided by a special optical system and directed to a flat screen. The method and device for generation of motion and motionless coloured images enable modulated laser beams of various colours, combined into the light spectrum (14) by means of reflection prisms (15a) within the optical system (15), to be divided in a larger number n of smaller light spectra (16,...16'), which can be appropriately displaced and directed to the displaying screen (18) by means of reflection surfaces (15b,...15b', 15c,...15c', 17).

Description

METODA IN NAPRAVA ZA GENERIRANJE PREMIČNIH ALIMETHOD AND DEVICE FOR GENERATION OF MOVABLE OR

NEPREMIČNIH BARVNIH SLIKFIXED COLOR PICTURES

Predmet izuma je metoda in naprava za generiranje premičnih ali is nepremičnih barvnih slik z uporabo moduliranih laserskih žarkov rdeče, modre in zelene barve sestavljene v svetlobno pahljačo, ki jo preko posebnega optičnega sistema delimo in usmerjamo na raven ekran. Izum sodi v razred G 02B 27/09 mednarodne patentne klasifikacije.The subject of the invention is a method and apparatus for generating moving or still color images using modulated laser beams of red, blue and green, assembled into a light fan, which is divided and directed to a flat screen via a special optical system. The invention belongs to class G 02B 27/09 of the international patent classification.

Tehnični problem, ki ga predložena metoda in naprava uspešno rešuje, 20 je določitev takšne metode in konstrukcija in izvedba naprave, s katero bo to metodo možno uspešno izvesti, ki bo omogočala prikazovanje premičnih ali nepremičnih barvnih slik na ravnih tankih zaslonih različnih velikosti z ustrezno resolucijo in ob majhni porabi električne energije.The technical problem that the presented method and device successfully solves, 20 is the determination of such a method and the construction and implementation of a device by which this method can be successfully implemented that will allow the display of moving or stationary color images on flat thin screens of different sizes with the appropriate resolution and with low power consumption.

Rešitev zastavljenega tehničnega problema je možno realizirati na več 25 načinov. Eden od načinov reševanja zastavljenega tehničnega problema je izvedba prikazovalne naprave s pomočjo katodne cevi TV ekrana. Pomanjkljivosti takšne rešitve so predvsem v velikosti katodne cevi v pogledu dimenzije in teže same katodne cevi, njena velika poraba ter izkrivljena slika na robovih. Poleg tega pa je velikost prikazovane slike omejena, saj TV ekrani zaradi svoje konstrukcije (izvedba odklonskih sistemov za odklon žarka) niso primerni za prikazovanje premičnih ali nepremičnih slik večjih dimenzij, npr. oglaševalski zasloni ali veliki zasloni na stadionih ipd. Pri LCD in plazma zaslonih, katerih konstrukcijske značilnosti tudi ne omogočajo tako velikih prej navedenih dimenzij, nastopi tudi problem osveževanja slike in pa senca zaradi paralakse.There are 25 ways to solve the technical problem. One way to solve a technical problem is to implement a display device using a cathode-ray tube TV screen. The disadvantages of such a solution are mainly the size of the cathode ray tube in terms of the dimension and weight of the cathode ray tube itself, its high consumption and the distorted image at the edges. In addition, the size of the displayed image is limited, because of its construction (the design of beam deflection systems), TV screens are not suitable for displaying moving or still images of larger dimensions, e.g. advertising screens or big screens in stadiums, etc. For LCDs and Plasma screens, whose design features do not allow such large dimensions, the problem of image refreshment and parallax shadows also arise.

Ena od rešitev zastavljenega problema je sestava večih TV ekranov v matriko (npr. 10 x 10) in njihovo krmiljene preko posebnega vezja, ki omogoča prikazovanje celotne slike na vseh ekranih. Takšna rešitev ima poleg prej opisanih pomanjkljivosti samega TV ekrana še izrazito vidne širše temne črte med ekrani (vmesni prostori pri stiku ekranov).One solution to the problem is to assemble multiple TV screens into an array (eg 10 x 10) and control them via a dedicated circuit that allows the whole picture to be displayed on all screens. Such a solution, in addition to the previously described drawbacks of the TV screen itself, also shows clearly the wider dark lines between the screens (the spaces between the screens).

Problem prikazovanja nepremičnih ali premičnih slik na velikih zaslonih lahko rešujemo tudi s pomočjo treh svetlobnih virov (rdečega, modrega in zelenega) v obliki projektorske naprave. Pomanjkljivost tovrstnega prikazovanje je izkrivljenost slike, poleg tega pa mora biti prostor v katerem projiciramo sliko temen, če želimo doseči ustrezen kontrast.The problem of displaying still or moving images on large screens can also be solved with the help of three light sources (red, blue and green) in the form of a projector device. The disadvantage of this rendering is the distortion of the image, and the space in which we project the image must be dark in order to achieve adequate contrast.

Pri prikazovanju nepremičnih ali premičnih slik na stadionih so uporabljeni veliki displayi, k uporabljajo LED diode ali manjše žarnice. Takšni prikazi so primerni le za prikazovanje podatkov, za prikazovanje sestavljenih pomičnih ali nepomičnih slik pa so manj primerni, ker ne nudijo zadostnega prelivanja in ostane slika grobo zrnata.When displaying still or moving images in stadiums, large displays are used, using LEDs or smaller lamps. Such displays are only suitable for displaying data, and for rendering composite moving or stationary images are less appropriate because they do not provide sufficient overflow and the image remains coarse-grained.

Metoda in naprava za generiranje premičnih ali nepremičnih barvnih slik po izumu temelji na uporabi moduliranih raznobarvnih laserskih žarkov, ki jih sestavljene v svetlobno pahljačo in s pomočjo reflektirajočih prizem v optičnem sistemu razdelimo v večje število n manjših svetlobnih pahljač, nakar te svetlobne pahljače s pomočjo odbojnih površin ustrezno premaknemo in usmerimo na prikazovalno površino.The method and apparatus for generating moving or stationary color images according to the invention is based on the use of modulated multicolored laser beams, which are assembled in a light fan and divided into a larger number of n smaller light fans by means of reflecting prisms in the optical system, and then these light fans using reflecting Move the surfaces accordingly and point them to the display surface.

Metodo in napravo za generiranje premičnih ali nepremičnih barvnih slik po izumu bomo podrobneje obrazložili na osnovi izvedbenega primera in pripadajočih slik, ki kaže:The method and apparatus for generating movable or stationary color images according to the invention will be explained in more detail on the basis of an embodiment and the accompanying images showing:

slika 1 shematski prikaz naprave za generiranje premičnih ali nepremičnih barvnih slik po izumu;Figure 1 is a schematic view of an apparatus for generating mobile or stationary color images according to the invention;

slika 2 shematski prikaz optičnega sistema 15 naprave za generiranje premičnih ali nepremičnih barvnih slik po izumu.2 is a schematic view of an optical system 15 of a device for generating movable or stationary color images according to the invention.

Metoda za generiranje premičnih ali nepremičnih barvnih slik po izumu temelji na delitvi vhodnega video signala na tri modulirane signale in signal, ki ga uporabljamo za krmiljenje obračalnega sistema z ogledalom. Z vsakim od treh moduliranih signalov nadalje moduliramo tri posamezne laserske vire, od katerih je eden rdeče, drugi modre in tretji zelene barve, nakar te tri modulirane laserske žarke zopet združimo v svetlobni žarek, ki ga optična naprava premika v smeri osi z. Obračalni sistem z ogledalom nato razprši ta žarek v smeri ravnine x-y tako, da ustvari svetlobno pahljačo, ki jo nato optični sistem razdeli na večje število n manjših svetlobnih pahljač (n je število vodoravnih linij od katerih je odvisna resolucija slike, ki jo želimo prikazati). Poleg tega optični sistem obrne vsako od teh n manjših svetlobnih pahljač v ravnino y-z in jih poleg tega postavi vzporedno eno k drugi. Manjše svetlobne pahljače nato reflektiramo s pomočjo ogledala na prikazovalno površino, kjer ustvarjajo linije, ki jih človeško oko vidi kot premične ali nepremične slike.The method for generating moving or stationary color images according to the invention is based on dividing the video input signal into three modulated signals and the signal used to control the mirror system. With each of the three modulated signals, we further modulate three individual laser sources, one of which is red, the other blue, and the third green, and then these three modulated laser beams are again combined into a light beam that is moved by the optical device in the z-axis. The mirror-rotating system then diffuses this beam in the xy plane to create a light fan, which is then divided by the optical system into a larger number of n smaller light fans (n is the number of horizontal lines on which the image resolution we want to display depends) . In addition, the optical system rotates each of these n minor light flares into the y-z plane and in addition places them parallel to each other. Smaller light flares are then reflected by a mirror onto the display surface, creating lines that the human eye sees as moving or stationary images.

Opisano metodo generiranja premičnih ali nepremičnih barvnih slik po izumu je možno uspešno izvesti z napravo za generiranje premičnih ali nepremičnih barvnih slik po izumu.The described method of generating moving or stationary color images according to the invention can be successfully performed with a device for generating moving or stationary color images according to the invention.

Naprava za generiranje premičnih ali nepremičnih barvnih slik po izumu is je sestavljena iz vezja 2 za procesiranje vhodnega video signala 1, optične naprave 12 za združevanje treh moduliranih laserskih žarkov iz treh raznobarnih laserskih virov 9,10,11 različnih barv v enega, obračalnega sistema 7 z ogledalom 13 za razpršitev moduliranega žarka v svetlobno pahljačo 14, ki leži v ravnini x-y in optičnega sistema 15 za deljenje svetlobne pahljače 14 na večje število n manjših svetlobnih pahljač 16 in njihovo obračanje v ravnino y-z. Manjše svetlobne pahljače 16 se od ogledalne površine 17 odbijajo na prikazovalno površino 18, kjer le-te ustvarjajo n linij 19, ki jih vidimo s pozicije 20 kot sliko.The device for generating movable or stationary color images according to the invention is composed of a circuit 2 for processing the video input signal 1, an optical device 12 for combining three modulated laser beams from three multicolored laser sources 9,10,11 different colors into one, rotating system 7 with a mirror 13 for scattering the modulated beam into a light fan 14 lying in the xy plane and an optical system 15 for dividing the light fan 14 into a plurality of n smaller light fans 16 and rotating them in the yz plane. The smaller light flares 16 reflect from the mirror surface 17 to the display surface 18, where they generate n lines 19, which are seen from position 20 as an image.

Video signal 1 v vezju 2 delimo na tri modulirane signale, ki so preko povezav 3,4,5 priključene na laserske vire 9,10,11. Preko povezave 6 in povratne povezave 8 je na vezje 2 priključen obračalni sistem 7 z ogledalom 13. Z vsakim od treh moduliranih signalov preko povezav 3,4 in 5 moduliramo tri raznobarvne (rdeče, modro in zeleno) laserske vire 9,10,11. Tri raznobarvne modulirane žarke nato z optično napravo 12 združimo v en žarek, ki ga obračalni sistem 7 z ogledalom 13 razprši v svetlobno pahljačo 14, ki leži v ravnini x-y.Video signal 1 in circuit 2 is divided into three modulated signals, which are connected to laser sources 9,10,11 via 3,4,5 links. Through the connection 6 and the feedback 8, a turning system 7 is connected to the circuit 2 by a mirror 13. With each of the three modulated signals, through the connections 3,4 and 5, we modulate three multicolored (red, blue and green) laser sources 9,10,11. The three multicolored modulated beams are then combined with an optical device 12 into one beam, which is dispersed by the rotating system 7 with the mirror 13 into a light fan 14 lying in the x-y plane.

Svetlobno pahljačo 14 nato preko optičnega sistema 15 razdelimo na io večje število n manjših svetlobnih pahljač 16. Manjše svetlobne pahljače se po prehodu skozi optični sistem 15 odbijajo od ogledalne površine na prikazovalno površino 18, kjer ustvarjajo n linij 19, ki jih vidimo s pozicije 20 kot sliko.The light fan 14 is then divided by the optical system 15 into io a larger number of n smaller light fans 16. The smaller light fans are reflected from the mirror surface to the display surface 18 when passing through the optical surface 18, where they generate n lines 19 seen from position 20 as a picture.

Optični sistem 15 je sestavljen iz večjega števila n reflektirajočih prizemThe optical system 15 consists of a plurality of n reflecting prisms

15a ... 15a', večjega števila n odbojnih površin 15b ... 15b' in večjega števila n odbojnih površin 15c ...15c'.15a ... 15a ', more n reflecting surfaces 15b ... 15b' and more n reflecting surfaces 15c ... 15c '.

Reflektirajoče prizme 15a ... 15a', odbojne površine 15b ... 15b' in odbojne površine 15c ... 15c' so postavljene tako, da pada n manjših svetlobnih pahljač 16 na ogledalno površino 17 vzporedno.The reflecting prisms 15a ... 15a ', the reflecting surfaces 15b ... 15b' and the reflecting surfaces 15c ... 15c 'are arranged such that n smaller light fires 16 fall on the mirror surface 17 in parallel.

Večje število n reflektirajočih prizem 15a ... 15a' deli in obrača svetlobno pahljačo 14 v n manjših svetlobnih pahljač 16 v pravem kotu glede na ravnino x-y. Večje število n manjših svetlobnih pahljač 16 nato odbojne površine 15b ... 15b' postavljajo v vzporedne ravnine y-z, odbojne površine 15c ... 15c' pa služijo za izenačevanje optične dolžine poti tem n manjšim svetlobnim pahljačam 16 tako, da so na ogledalni površini 17 medsebojno vzporedne. Od ogledalne površine 17 se n manjših svetlobnih pahljač 16 odbije na prikazovalno površino 18 (raven zaslon), kjer ustvarijo n linij 19, te pa vidimo s pozicije 20 kot sliko.The larger number of n reflecting prisms 15a ... 15a 'divides and turns the light fan 14 into n smaller light fans 16 at right angles to the x-y plane. The larger number of n smaller light flares 16 are then positioned on the reflecting surfaces 15b ... 15b 'in parallel planes yz, and the reflecting surfaces 15c ... 15c' serve to equalize the optical path length to those smaller light flares 16 such that they are on the mirror surface 17 are parallel to each other. From the mirror surface 17, n smaller lighters 16 are reflected to the display surface 18 (flat screen), where n lines 19 are created, and these are viewed from position 20 as an image.

Claims (4)

PATENTNI ZAHTEVKIPATENT APPLICATIONS 1. Metoda in naprava za generiranje premičnih ali nepremičnih barvnih1. Method and apparatus for generating mobile or stationary colors 5 slik, označena s tem, da modulirane raznobarvne laserske žarke, sestavljene v svetlobno pahljačo (14) s pomočjo reflektirajočih prizem (15a) v optičnem sistemu (15) razdelimo v večje število n manjših svetlobnih pahljač (16, ... 16'), io ki jih s pomočjo odbojnih površin (15b, ... 15b', 15c, ... 15c’, 17) ustrezno premaknemo in usmerimo na prikazovalno površino (18).5 images, characterized in that the modulated multicolored laser beams assembled into a light fan (14) are divided into a large number of n smaller light fans (16, ... 16 ') by means of reflective prisms (15a) in the optical system (15). , io which are appropriately moved and directed to the display surface (18) by means of reflecting surfaces (15b, ... 15b ', 15c, ... 15c', 17). 2. Metoda za generiranje premičnih ali nepremičnih barvnih slik, po zahtevku 1,A method for generating moving or stationary color images according to claim 1, 15 označena s tem, da je vhodni video signal deljen na tri modulirane signale in signala, ki omogočata krmiljenje obračalnega sistema z ogledalom, pri čemer z vsakim od treh moduliranih signalov nadalje moduliramo tri posamezne laserske vire, od katerih je eden rdeče, drugi modre in tretji zelene15, characterized in that the video input signal is divided into three modulated signals and signals which allow the control of the turning system with a mirror, with each of the three modulated signals further modulating three individual laser sources, one of which is red, the other blue and third green 2o barve, nakar te tri modulirane laserske žarke zopet združimo v svetlobni žarek, ki ga ustrezna optična naprava premika v smeri osi z, obračalni sistem z ogledalom nato razprši ta žarek v smeri ravnine x-y tako, da ustvari svetlobno pahljačo, ki jo nato optični sistem razdeli na večje število n manjših svetlobnih pahljač in obrne vsako od teh n manjših svetlobnih pahljač v ravnino y-z ter postavi vzporedno eno k drugi tako, da so manjše svetlobne pahljače nato usmerjene s pomočjo ogledala na prikazovalno površino.2o colors, after which these three modulated laser beams are again combined into a light beam which is moved by the corresponding optical device in the z-axis, the mirror-rotating system then disperses that beam in the xy plane to create a light fan, which is then turned on by the optical system it divides into a larger number of n smaller light flares and turns each of these n smaller light flares into the yz plane and places them parallel to each other so that the smaller light flares are then directed by a mirror to the display surface. 55 3. Naprava za generiranje premičnih ali nepremičnih barvnih slik, po zahtevku 1 in 2, označena s tem, da je vezje (2) za procesiranje vhodnega video signala (1) priključeno prekjo povezav (3,4,5) na laserske vire (9,10,11), le-ti pa na optično io napravo (12); da je obračalni sistem (7) preko povezav (6,8) priključen na vezje (2); da leži ogledalo (13), ki je na eni strani mehansko povezano z obračalnim sistemom (7) tako, da optična naprava (12) usmerja svetlobno pahljačo (14), na optični sistem (15), večje število n manjših svetlobnih pahljač (16) pa se nato od ogledalne površine (17) is odbija na prikazovalno površino (18).Device for generating mobile or stationary color images according to claims 1 and 2, characterized in that the circuit (2) for processing the video input signal (1) is connected via links (3,4,5) to the laser sources (9) , 10,11), and to the optical device (12); that the turning system (7) is connected to the circuit (2) via connections (6,8); that the mirror (13), which is mechanically connected to the rotating system (7) lies in such a way that the optical device (12) directs the light fan (14), to the optical system (15), a larger number of n smaller light fans (16 ) is then reflected from the mirror surface (17) and onto the display surface (18). 4. Naprava za generiranje premičnih ali nepremičnih barvnih slik, po zahtevku 3, označena s tem,4. A device for generating movable or stationary color images according to claim 3, characterized in that 20 da je optični sistem (15) sestavljen iz večjega števila n reflektirajočih prizem (15a ... 15a'), večjega števila n odbojnih površin (15b ... 15b') in večjega števila n odbojnih površin (15c ...15c'), ki so postavljene tako, da pada n manjših svetlobnih pahljač (16) na ogledalno površino (17) vzporedno.20 that the optical system (15) consists of a larger number of n reflecting prisms (15a ... 15a '), a greater number of n reflecting surfaces (15b ... 15b') and a greater number of n reflecting surfaces (15c ... 15c ') ), which are positioned such that n smaller light fires (16) fall on the mirror surface (17) in parallel.
SI9900202A 1999-09-02 1999-09-02 Method and device for generation of motion or motionless coloured images SI20393A (en)

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SI9900202A SI20393A (en) 1999-09-02 1999-09-02 Method and device for generation of motion or motionless coloured images
PCT/HR2000/000030 WO2001017273A1 (en) 1999-09-02 2000-08-28 Method and the device for generating moving and still full-colour images
AU67158/00A AU6715800A (en) 1999-09-02 2000-08-28 Method and the device for generating moving and still full-colour images

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US4003080A (en) * 1975-06-02 1977-01-11 Laser Video, Inc. Large screen video display systems and methods therefor
US5546139A (en) * 1993-06-28 1996-08-13 Bacs, Jr.; Aron Moving imagery projection system
DE4324849C2 (en) * 1993-07-23 1995-07-13 Schneider Rundfunkwerke Ag Video system for generating a color video image on a screen

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