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).