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1.发明授权Verfahren und Vorrichtung zur Videobildprojektion mit variabler Bildgrösse 失效对于具有可变帧大小的视频图象投影的方法和装置
公开(公告)号：EP0776575B1
公开(公告)日：1999-12-29
申请号：EP96914992.1
申请日：1996-04-26
发明人： RÖDER, Rolf , DETER, Christhard
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2.发明公开Vorrichtung zum Ablenken, ihre Verwendung sowie ein Videosystem 审中-公开Vorrichtung zum Ablenken，ihre Verwendung sowie ein Videosystem
公开(公告)号：EP0935150A1
公开(公告)日：1999-08-11
申请号：EP98123651.6
申请日：1998-12-10
发明人： Deter, Christhard
CPC分类号： H04N9/3129 , G02B26/10 , G02F1/33 , G02F2203/28
摘要： Bei einer Vorrichtung zum Ablenken eines mittels einer Lichtquelle (60) erzeugten Lichtbündels (3, 4; 23), wobei diese Vorrichtung eine nichtmechanische Ablenkeinrichtung (1, 1') aufweist, in die das Lichtbündel (3, 4; 23) einfällt und unter einem anderen, durch eine Steuergröße bestimmten Winkel, der von der Wellenlänge jedes Lichtanteils im Lichtbündel (3, 4; 23) abhängt, ausfällt, ist vorgesehen, daß in Lichtfortpflanzungsrichtung hinter der nichtmechanischen Ablenkeinrichtung (1, 1') ein optisch dispersiv wirksames System (5), dessen Winkeldispersion von dem Winkel des in dieses einfallenden Lichtbündels (3, 4; 23) abhängig ist, angeordnet ist, wobei die Winkeldispersion die Wellenlängenabhängigkeit des durch die Steuergröße bestimmten Winkels der nichtmechanischen Ablenkeinrichtung (1, 1') kompensiert.
摘要翻译： 偏转装置具有非机械偏转装置（1），光束入射到该非机械偏转装置（1）上，并且其以与光束中每个光分量的波长不同的角度离开。 在光传播方向上布置在非机械偏转装置之后的光学色散系统（5）的分散角取决于入射光束的角度，由此角度色散补偿由 控制参数。 对于具有偏转装置的视频系统，还包括独立声明。
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3.发明公开
公开(公告)号：EP0925690A1
公开(公告)日：1999-06-30
申请号：EP98906907.0
申请日：1998-02-03
CPC分类号： H04N9/3129
摘要： The invention relates to a device for displaying a video image, comprising at least a source (44, 44') emitting an intensity modulated light bundle (39, 39') and a deflection device (41, 42) to deflect the light bundle (39, 39'). The source (44, 44') emits two independent modulational light bundles (39, 39')in order to conduct angle-proportional line scanning of Np pixels at an angle αp and to carry out angle-proportional scanning of the light bundle (39, 39') of Nz lines of the video image at an angle αz. The first light bundle (39) is modulated with video information to illuminate a scan-controlled first pixel and the second light bundle is modulated with video information to illuminate a second pixel. The video information of the second pixel is staggered by mz lines of an image and mp pixels of a line in relation to the video information of the first pixel, the whole numbers being mz ≤ Nz and mp ≤ Np and mz and/or mp 0. An optical system (40) is provided which groups both light bundles (39, 39') in a common real or virtual point (54) located in front of or inside the deflection devices in the direction of light propagation. Both light bundles (39, 39') diverge on said point at a predetermined angle mz x αz/Nz in the direction of image scanning and mp x αp/Np in the direction of line scanning.
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公开(公告)号：EP0902906A1
公开(公告)日：1999-03-24
申请号：EP98905279.0
申请日：1998-01-09
CPC分类号： G02B5/32 , H01S3/2383 , H01S5/4012 , H01S5/4025
摘要： The invention concerns a method and device for generating a coherent light beam (10), wherein n > 1 primary coherent light beams (14) are each passed at mutually fixed phase relations into one of n optical amplifiers (12), whereupon n secondary light beams (16) are guided out of these amplifiers (12). The n secondary light beams (16) are combined with a first optical system (20) by phase-matched superposition to form the coherent light beam to be generated.
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公开(公告)号：EP0882249A1
公开(公告)日：1998-12-09
申请号：EP97948850.0
申请日：1997-10-31
发明人： WUNDERLICH, Jörg , HILLER, Klaus , GÖPFERT, Frank , WALLENSTEIN, Richard , DETER, Christhard , BIEHLIG, Wolfram , KRÄNERT, Jürgen
CPC分类号： H04N9/3129 , G02B26/101 , G02B27/48
摘要： Device with a laser (10, 20, 30) for image reproduction. The laser (10,20,30) emits a laser beam (12, 22, 32) with a defined coherence length L for a given wavelength μ. The invention provides a first structure (44; 45; 52; 43; 67) which is placed in the path of the laser beam (12, 22, 32) enabling phase shifts to occur for the individual photons of the laser beam (12, 22, 32) according to a predetermined distribution. The average path resulting from the ratio between the average quadratic value of the phase shift caused by distribution and the sum of the wave vector k = 2 π/μ of the laser (10, 20, 30) is greater than the coherence length L multiplied by a factor 1/(12)1/2.
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6.发明公开VERFAHREN UND VORRICHTUNG ZUM ÜBERTRAGEN EINES ZUM AUSLEUCHTEN VON BILDPUNKTEN EINES VIDEOBILDES VORGESEHENEN, IN EINEN LICHTLEITER EINGEKOPPELTEN LICHTBÜNDELS GERINGER DIVERGENZ 失效的方法和设备，用于传输的服务提供IN耦合光束低发散的光导的视频图像的照明PIXELS
公开(公告)号：EP0839333A1
公开(公告)日：1998-05-06
申请号：EP97920678.0
申请日：1997-04-14
发明人： DETER, Christhard
CPC分类号： H04N9/3129 , G02B6/32 , H04N5/74
摘要： In a process for the transmission of a light beam for illuminating pixels in a video image, with the light beam being inserted into an optical fibre (6), with a certain divergence angle and beam diameter determined by the way it is generated and being launched by an optical system (4) used to bundle the transmitted light beam (15) leaving the optical fibre (6), it is proposed to adjust the divergence angle of the light beam (15) leaving the optical fibre (6) proportionally to the divergence angle given by the way it is generated, the proportionality factor being the ratio of the given beam diameter prior to the beam's insertion into the optical fibre (6) to the beam diameter of the light beam launched by the optical system. A video system for carrying out the process has an optical system (4) which is dimensioned accordingly.
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公开(公告)号：EP0770306A1
公开(公告)日：1997-05-02
申请号：EP96914995.0
申请日：1996-04-26
IPC分类号： H04N7
CPC分类号： H04N7/0135 , H04N7/01 , H04N7/0125
摘要： The invention concerns a method of processing a video image with image points in m1 lines, the points in the l1-th line having an intensity I1(t, l1) which depends on a parameter t, in particular time, in order to generate a second video image with m2 lines. The invention calls for the intensity I2(t, l2) of each image point in the l2-th line of the second video image to be interpolated from the intensities of the image points of the first video image I1(t, l1), the intensity I2 being obtained from the equation: I2(t,l2)=Max[J(t,l2)+Δ;0] in which J represents values, discretized with respect to the lines, of changes in signal defined by the scan theorem and which includes an offset Δ for partial compensation of negative intensities of the discretized changes J in the signal, so that the interpolation is carried out with respect to the lines with A as a freely determined positive-value amplitude in accordance with the equation (1). The invention also concerns a device including circuit elements suitable for the generation of the second video image by the method proposed.
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公开(公告)号：EP1071178A2
公开(公告)日：2001-01-24
申请号：EP00113567.2
申请日：2000-06-27
发明人： Kränert, Jürgen , Springer, Thoralf
IPC分类号： H01S3/098 , H01S3/081 , H01S3/06 , H01S3/0941
CPC分类号： H01S3/1118 , H01S3/08072
摘要： Die Erfindung betrifft einen modensynchronisierten Festkörperlaser, bestehend aus einem Lasermedium (1) innerhalb eines durch einen Resonatorspiegel (8) und einen Auskoppelspiegel (6) gebildeten Laserresonators, der durch mindestens einen konkaven Faltungsspiegel (7) gefaltet ist, mit einem Sättigbaren Absorber (9) innerhalb des Laserresonators und mit mindestens einer Laserpumpquelle (3, 4, 5, 3', 4', 5') deren Pumpstrahlung das Lasermedium (1) pumpt, wobei die gestreckte Resonatorlänge L eine Funktion der Puls-Wiederholfrequenz ist und diese durch einen Abstand zwischen dem Resonatorspiegel (8) und dem Auskoppelspiegel (6) bestimmt ist.
Sie ist dadurch gekennzeichnet, daß ein elliptisches Strahlprofil innerhalb des Laserresonators, welches durch eine Schrägstellung einer optischen Achse des mindestens einen konkaven Faltungsspiegels (7) zu einer gefalteten optischen Achse (12) des Laserresonators bedingt ist, mit einer elliptischen Thermischen Linse (11) im Lasermedium (1) beseitigt wird, deren optische Wirkung eine Elliptizität des Strahlprofiles erzeugt, das um 90° zu dem durch den Faltungsspiegel (7) erzeugten elliptischen Strahlprofil versetzt ist, wobei der Grad der Elliptizität der Thermischen Linse (11) durch die Materialeigenschaften, die kristallographische Orientierung und die geometrischen Abmessungen des Lasermediums (1) und durch eine Wahl der Intensität und Intensitätsverteilung der Pumpstrahlung im Lasermedium (1) so eingestellt wird, daß eine möglichst gleichmäßige Energiedichteverteilung über dem bestrahlten Gebiet des Sättigbaren Absorbers (9) entsteht.摘要翻译： 由激光谐振器的折叠光轴（12）倾斜的至少一个凹折回镜（7）的光轴限定的椭圆形光束轮廓使用激光器中的椭圆形热透镜（11）来消除 中等（1）。 热透镜的光学效应导致光束轮廓中的椭圆率，该折射率轮廓由折回镜产生的光束轮廓偏移了90度w.r.t。 设置热透镜的椭圆度，使得在饱和吸收体（9）的照射区域上尽可能均匀地分配能量。
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公开(公告)号：EP0662273B1
公开(公告)日：1999-10-13
申请号：EP94924785.2
申请日：1994-07-19
IPC分类号： H04N9/31
CPC分类号： H04N9/3129
摘要： A video projection system has at least one source of light (4; 5; 6) of controllable intensity for generating at least one beam of light (14; 15; 16; 22) and a scanning device (30) that sequentially, vertically and horizontally scans the beam of light (22) in order to generate picture elements of a video image on a screen (36). The video projection system has two groups of components (1, 2). The first group of components (1) has at least one source of light (4, 5, 6) and a light output through which at least one beam of light is outputted. The second group of components (2) has the scanning device (30) and a light input through which a beam of light (22) may be reproduced in the scanning device (30). A light transmission device (3) is further provided to ensure an optical link between the light output of the first group of components (1) and the light input of the second group of components (2)
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10.发明公开VORRICHTUNG ZUM INTENSITÄTSMODULIEREN EINES LICHTBÜNDELS, EIN HERSTELLUNGSVERFAHREN FÜR DIESE, EIN VERFAHREN ZUM INTENSITÄTSMODULIEREN EINES LICHTBÜNDELS SOWIE VERWENDUNG DER VORRICHTUNG 失效DEVICE FOR光束，一种用于这一点，光束的强度调制方法和设备的使用强度MODULATE
公开(公告)号：EP0916228A1
公开(公告)日：1999-05-19
申请号：EP98909461.0
申请日：1998-02-13
CPC分类号： H04N9/3129 , G02F1/0322 , G02F1/11 , G09B9/326 , G09B27/02
摘要： The invention relates to a device (14) for modulating the intensity of a light bundle (12) which is incident in the entrance of a modulator (50). Said modulator can be regulated between two states by means of a control signal (54). In the first state, a minimum proportion of the light bundle (12) leaves an exit of the modulator and in the second state a maximum proportion of the light bundle leaves said modulator. According to the invention, the device (14) has two or more modulators (50, 50', 50'') arranged in a series, so that each light bundle leaving one of the modulators (50, 50') is guided into the entrance of one of the next modulators arranged in the direction of light propagation. After the intensity of the light bundle (16) has been modulated by the device, said light bundle can be removed from the last of the series of modulators (50) arranged in this way in such a manner that the extinction of the device (14) in relation to each of the individual modulators (50) is improved.
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