| 摘要 |
The device for increasing the optical efficiency of projected beam and the thermal stability of LCD panel, separates non- polarized beam into polarized beams from by prism and projects the polarized beams on the LCD or slide film. The device having non- spherical reflex mirror (1), lamp (2), arch-shape spherical reflex mirrors (3)(4), condenser system (6) having optical guide device (5) and condenser lenses (13)(14), LCD panels (11)(12), projecting lenses (15)(16), comprises a heat absorbing filter (7), polarization prism (8) at the rear of the mirror (4); flat reflex mirrors (9)(10) for reflecting incident beam in the perpendicular direction; condenser lenses at the lower of the mirrors (9)(10).
|
