公开(公告)号：EP0629331A1

公开(公告)日：1994-12-21

申请号：EP93905513.0

申请日：1993-03-04

申请人： RANK BRIMAR LIMITED

发明人： KAVANAGH, Martin ,  FIELDING, Raymond Gordon

IPC分类号： G02B26 ,  G02B27 ,  G03B21 ,  G09F9 ,  H04N5 ,  H04N9

CPC分类号： H04N9/3105 ,  G02B26/0841 ,  G02B27/18 ,  G09F9/372 ,  H04N5/74 ,  H04N5/7458

摘要： Appareil de projection comprenant une source lumineuse, un moyen permettant de fractionner la lumière de la source en faisceaux de couleur differentes, et un ensemble de modulateurs de lumière spatiale à dispositifs spéculaires déformables. Le système est caractérisé en ce que les chemins lumineux vers ledit moyen de fractionnement et lesdits modulateurs se présentent sous la forme d'un seul prisme sur lequel sont fixés lesdits modulateurs.

公开(公告)号：EP0646284A1

公开(公告)日：1995-04-05

申请号：EP93913365.0

申请日：1993-06-14

申请人： RANK BRIMAR LIMITED

发明人： KAVANAGH, Martin

IPC分类号： F21V29 ,  F21V7 ,  F21V9 ,  F21V23 ,  H01J61

CPC分类号： F21V23/00 ,  F21V7/09 ,  H01J61/025 ,  H01J61/106 ,  H01J61/26 ,  H01J61/35 ,  H01J61/40 ,  H01J61/52 ,  H01J61/526 ,  H01J61/548 ,  H01J61/86

摘要： An arc lamp suitable for use as a high intensity light source in a projection system is described. A reflector (44) is arranged to reflect the light produced by the arc into a directional light beam, secondary reflection means being arranged to direct part of the reflected beam so as to compensate for regions which are obscured by the electrodes. Means are provided within the light source to dissipate heat generated by the electrodes.

公开(公告)号：EP0746948A1

公开(公告)日：1996-12-11

申请号：EP95909020.0

申请日：1995-02-21

申请人： RANK BRIMAR LIMITED

发明人： KAVANAGH, Martin ,  FIELDING, Raymond, Gordon ,  MOSS, Graham, Harry

IPC分类号： G02B26 ,  G03B21 ,  G09F9 ,  H04N9

CPC分类号： H04N9/315 ,  G02B26/0816

摘要： A projection system includes a light source (16) and a prism assembly (41) including at least one air gap (45) effective both to deflect incident light on to at least one reflective spatial light modulator (10), and to transmit modulated light produced by the spatial light modulator (10).

公开(公告)号：EP0634076A1

公开(公告)日：1995-01-18

申请号：EP93907976.0

申请日：1993-04-01

申请人： RANK BRIMAR LIMITED

发明人： KAVANAGH, Martin ,  FIELDING, Raymond Gordon

IPC分类号： G02B26 ,  G02B27 ,  G09F9 ,  H04N9

CPC分类号： H04N9/3105 ,  G02B26/0833 ,  G02B27/0025 ,  G09F9/372

摘要： A spatial light modulator projection system in which astigmatism caused by parallel plates supporting dichroic splitter/combiner films is corrected by providing oppositely-inclined correction plates in the beam path.