公开(公告)号：EP1472643B1

公开(公告)日：2011-09-21

申请号：EP03706457.3

申请日：2003-02-07

申请人： Jenoptik Ldt GmbH

发明人： WENZEL, Mike

IPC分类号： G06K7/10 ,  G02B7/182 ,  H04N9/31 ,  G02B26/10 ,  H04N1/053 ,  G01D5/30

CPC分类号： H04N1/053 ,  G01D5/30 ,  G02B7/1821 ,  H04N1/1135 ,  H04N2201/02439 ,  H04N2201/0471 ,  H04N2201/04732 ,  H04N2201/04744 ,  H04N2201/04768 ,  H04N2201/04794

摘要： The invention relates to an arrangement and a method for measurement on a resonant oscillator with a mirror surface (8), which is displaced about an oscillation axis (2) with a period of duration (T), a laser diode (4) which emits a measuring beam (3) onto the first mirror surface (8), whereby a beam axis (21) of the measuring beam (3) intersects the oscillation axis (2). A photo receiver (6) is arranged opposing the first mirror surface (8) at a separation (a) from the beam axis (21) and a separation (b) from the mirror surface (8). The deflected measuring beam (5) moves within a quarter of a period (0 .... T/4) of an oscillation and over the photo-receiver (6) within a following quarter (T/4 .... T/2) of the period. The photo-receiver (6) is connected to an analytical circuit (11) which calculates the timepoints (t1, t2) from the impulses from the photo-receiver (6) and calculates a time period within the one half-wave (Δt = t2 - t1) from the above. The analytical circuit (11) calculates an actual value of the maximum amplitude with the equation:(I). The time duration Δt corresponds to a line dead time on writing sequential lines of a video image.

公开(公告)号：EP1554890A1

公开(公告)日：2005-07-20

申请号：EP03773658.4

申请日：2003-10-21

申请人： Jenoptik LDT GmbH

发明人： DETER, Christhard ,  WUNDERLICH, Jörg

IPC分类号： H04N9/31 ,  G02B13/16 ,  G02B27/00

CPC分类号： G02B26/125 ,  G02B13/16 ,  G02B27/0031

摘要： The invention relates to an arrangement for projecting an image, which is made of pixels, onto a projection surface, comprising at least one light source whose intensity can be altered and which emits a light beam, also comprising a deflection device which deflects the light beam onto the projection surface, and a two-stage transformation lens system which is arranged between the deflection device and the projection surface. The invention also relates to optical systems for adjusting the angle of an incident light beam by means of a two-stage transformation lens. The invention is characterised in that the transformation lens system (109) is made up of two partial systems having positive refractive power such that when seen in the direction of the propagation of the light, the entrance pupil (EP) is arranged in front of the first lens apex (2) of the transformation lens system (109) and the exit pupil (AP)of the transformation lens system is arranged between the lens apex of the last lens (14) and the projection surface (121), and a diaphragm (111) is arranged inside the exit pupil (AP).

公开(公告)号：EP1421429B1

公开(公告)日：2007-01-24

申请号：EP02742893.7

申请日：2002-04-12

申请人： Jenoptik Ldt GmbH

发明人： GESSNER, Thomas ,  DÖTZEL, Wolfram ,  KAUFMANN, Christian ,  MEHNER, Jan ,  Hahn, Ramon ,  KURT, Steffen

IPC分类号： G02B26/10

CPC分类号： G02B26/105 ,  B81B3/004 ,  B81B2201/047 ,  G02B26/0841

摘要： The invention relates to a resonance scanner in which a frame (3), a drive plate (4), a mirror (5) and torsion springs (6, 7) form an actuator part (1). The drive plate (4) is fixed inside the frame (3) by two first torsion springs (6) in such a manner that enables the drive plate (4) to oscillate about a common first torsion axis (8) of both torsion springs (6). The mirror (5) is fixed inside the drive plate (4) by two second torsion springs (7) in such a manner that enables the mirror (5) to oscillate about a common second torsion axis (9) of both torsion springs (7). The first torsion axis (8) and the second torsion axis (9) run parallel to one another. In addition, only the frame (3) of the actuator part (1) is fixed on lateral walls (10) of a box-shaped stator part (2). A drive means (stator electrodes (15) or a coil (24)) is placed on a bottom (11) of the stator part (2) only in the area of the geometrically two-dimensional extension of the drive plate (4). The bottom (11) has, in the area of the geometrically two-dimensional extension of the mirror, a recess (13) provided with dimensions which are large enough so that a maximum mechanical deflection of the mirror (5) is not limited by the bottom (11). The drive means (stator electrodes (15) or coil (24)) exert a force only indirectly onto the drive plate (4), and this force obeys a periodic function whose period is matched to the natural frequency of the mirror (5) that differs from the natural frequency of the drive plate (4).

公开(公告)号：EP0904561B1

公开(公告)日：2004-11-24

申请号：EP98912500.0

申请日：1998-03-24

申请人： Jenoptik LDT GmbH

发明人： NEBEL, Achim

IPC分类号： G02F1/39 ,  H04N9/31

CPC分类号： H04N9/3129 ,  G02F1/3532

公开(公告)号：EP1472643A1

公开(公告)日：2004-11-03

申请号：EP03706457.3

申请日：2003-02-07

申请人： Jenoptik Ldt GmbH

发明人： WENZEL, Mike

IPC分类号： G06K7/10 ,  G02B7/182 ,  H04N9/31 ,  G02B26/10 ,  H04N1/053 ,  G01D5/30

CPC分类号： H04N1/053 ,  G01D5/30 ,  G02B7/1821 ,  H04N1/1135 ,  H04N2201/02439 ,  H04N2201/0471 ,  H04N2201/04732 ,  H04N2201/04744 ,  H04N2201/04768 ,  H04N2201/04794

摘要： The invention relates to an arrangement and a method for measurement on a resonant oscillator with a mirror surface (8), which is displaced about an oscillation axis (2) with a period of duration (T), a laser diode (4) which emits a measuring beam (3) onto the first mirror surface (8), whereby a beam axis (21) of the measuring beam (3) intersects the oscillation axis (2). A photo receiver (6) is arranged opposing the first mirror surface (8) at a separation (a) from the beam axis (21) and a separation (b) from the mirror surface (8). The deflected measuring beam (5) moves within a quarter of a period (0 .... T/4) of an oscillation and over the photo-receiver (6) within a following quarter (T/4 .... T/2) of the period. The photo-receiver (6) is connected to an analytical circuit (11) which calculates the timepoints (t1, t2) from the impulses from the photo-receiver (6) and calculates a time period within the one half-wave (Δt = t2 - t1) from the above. The analytical circuit (11) calculates an actual value of the maximum amplitude with the equation:(I). The time duration Δt corresponds to a line dead time on writing sequential lines of a video image.

公开(公告)号：EP1022913A3

公开(公告)日：2004-10-06

申请号：EP99122969.1

申请日：1999-11-18

申请人： Jenoptik LDT GmbH

发明人： Deter, Christhard

IPC分类号： H04N9/12 ,  H04N9/31 ,  H04N5/74

CPC分类号： H04N9/3147 ,  H04N9/12

摘要： Die Erfindung betrifft ein Videoprojektionssystem zur Projektion von mehr als einem Bild, bei dem in Lichtrichtung eines Strahlenganges eine Lichtquelle zur Erzeugung mindestens eines Lichtbündels, Mittel zur Intensitätsmodulation und Mittel zur räumlichen Lichtbündel-Modulation, wobei diese Mittel von einem Videosignal angesteuert werden, und mindestens eine Projektionsfläche zur Darstellung einer bestimmten Anzahl (n) von Einzelbildern angeordnet sind. Sie ist dadurch gekennzeichnet, daß das Videoprojektionssystem eine der Anzahl (n) der Einzelbilder (55, 56, 57) entsprechende Anzahl (n) Projektoren (115, 116, 117) umfaßt, deren jeder ein Mittel zur räumlichen Lichtbündel-Modulation (35, 36, 37) aufweist und diese Mittel mit der Lichtquelle (100) optisch verbunden sind, weiterhin - in Lichtrichtung des Strahlenganges gesehen - nach der einen Lichtquelle (100) ein Mittel zur Aufteilung (111) des Lichtbündels (1) in eine der Anzahl der Projektoren entsprechende Anzahl (n) von Teil-Lichtbündeln (2, 3, 4), deren jedes einen Teil-Strahlengang aufweist und nachfolgend in jedem der Teil-Strahlengänge ein Mittel zur Intensitätsmodulation (25, 26, 27) angeordnet ist, wobei jeweils das Mittel zur Intensitätsmodulation (25, 26 oder 27) und das Mittel zur räumlichen Lichtbündel-Modulation (35, 36 oder 37), die in einem der Teil-Strahlengänge (15, 16 oder 17) angeordnet sind, von den Signalen (A, B, C) einer Videoquelle (105, 106, 107) angesteuert werden.

摘要翻译： 视频投影系统包括对应于单个图像（55-57）的数量的多个投影仪（115-117），每个能够经由光源（100）空间调制光束束。 部分光线（2-4）将光（1）分配到与投影机数量相对应的多个光束中。 每个铅笔具有配有强度调制器的部分光束路径（25-27）。

公开(公告)号：EP1071178B1

公开(公告)日：2003-12-03

申请号：EP00113567.2

申请日：2000-06-27

申请人： Jenoptik LDT GmbH

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

公开(公告)号：EP1038114B1

公开(公告)日：2005-02-23

申请号：EP99953830.9

申请日：1999-10-14

申请人： Jenoptik LDT GmbH

发明人： WERFEL, Frank ,  DETER, Christhard

IPC分类号： F16C39/06

CPC分类号： F16C32/0438 ,  Y10S505/879

摘要： The invention relates to a magnetic bearing, wherein a first part (1, 20) is magnetically mounted in relation to a second part (3, 10) and the second part (3, 10) has a supraconductive material (2) of a second type containing an anisotropic crystal or several grains consisting thereof, wherein said crystal is anisotropic due to the fact that the supraconductive current is guided on the current carrying planes. According to the invention, the first part (1, 20) has a configuration consisting of magnets (1; 6, 7, 8; 11, 12, 13, 14; 30, 31, 32, 34; 50, 51, 52, 53) interacting with the supraconductive material (2), wherein the crystal itself or the crystal contained in the majority of the grains and the normal line or lines on the current carrying planes (a-b) are directed towards the first part (1, 20).

公开(公告)号：EP0852048B1

公开(公告)日：2004-09-08

申请号：EP97931781.5

申请日：1997-07-04

申请人： CARL ZEISS JENA GmbH ,  Jenoptik LDT GmbH

发明人： LANG, Wilfried ,  MEIER, Ludwig

IPC分类号： G09B27/02 ,  G02B26/10 ,  G03B37/04

CPC分类号： G02B26/10 ,  G03B37/04 ,  G09B27/02

摘要： A device fro projection onto a dome has several projectors (50, 51, 54, 56) for representing images on an at least partly spherical projection surface (52), each projector (50, 51, 54, 56) being arranged so that it illuminates one or more partial surfaces (56, 58) on the projection surface (52) with partial images. A light source (12) and a deflection device (40) are provided for one or more of the projectors (51, 54, 56), by means of which a beam of light (10) emitted from the light source (12) to represent the image can be guided over the part to be illuminated. The deflection device (40) for the one or more projectors (51, 54, 56) is designed as a grid device with which the beam of light can be guided in several lines with several picture elements over the partial surface (56, 58) to be illuminated, and the light source (12) is connected to an intensity control (64), which allows individual pixels to be illuminated with suitable luminance to represent the partial image (56, 58).

公开(公告)号：EP1421429A2

公开(公告)日：2004-05-26

申请号：EP02742893.7

申请日：2002-04-12

申请人： Jenoptik Ldt GmbH

发明人： GESSNER, Thomas ,  DÖTZEL, Wolfram ,  KAUFMANN, Christian ,  MEHNER, Jan ,  Hahn, Ramon ,  KURT, Steffen

IPC分类号： G02B26/10

CPC分类号： G02B26/105 ,  B81B3/004 ,  B81B2201/047 ,  G02B26/0841

摘要： The invention relates to a resonance scanner in which a frame (3), a drive plate (4), a mirror (5) and torsion springs (6, 7) form an actuator part (1). The drive plate (4) is fixed inside the frame (3) by two first torsion springs (6) in such a manner that enables the drive plate (4) to oscillate about a common first torsion axis (8) of both torsion springs (6). The mirror (5) is fixed inside the drive plate (4) by two second torsion springs (7) in such a manner that enables the mirror (5) to oscillate about a common second torsion axis (9) of both torsion springs (7). The first torsion axis (8) and the second torsion axis (9) run parallel to one another. In addition, only the frame (3) of the actuator part (1) is fixed on lateral walls (10) of a box-shaped stator part (2). A drive means (stator electrodes (15) or a coil (24)) is placed on a bottom (11) of the stator part (2) only in the area of the geometrically two-dimensional extension of the drive plate (4). The bottom (11) has, in the area of the geometrically two-dimensional extension of the mirror, a recess (13) provided with dimensions which are large enough so that a maximum mechanical deflection of the mirror (5) is not limited by the bottom (11). The drive means (stator electrodes (15) or coil (24)) exert a force only indirectly onto the drive plate (4), and this force obeys a periodic function whose period is matched to the natural frequency of the mirror (5) that differs from the natural frequency of the drive plate (4).