U.S. Philips Corporation

Antonie W Damen

Adrianus J De Vaan

The invention relates to an image projection module (1) comprising, in this order, an illumination system (3) and an image display system (13) having at least one display panel (15) for modulating an illumination beam to be supplied by the illumination system (3) with image information. The illumination system (3) comprises an integrator system (19) having an exit surface which is located in an exit plane. First reflecting means (33; 43) are present in the exit plane of the integrator system (19) and the module (1) further comprises second, selectively reflecting means (39). An optical system (31) for at least partly imaging the exit surface via the second reflecting means on the first reflecting means is arranged between the first and the second reflecting means.

Image projection module and image projection device provided with such a

The invention relates to an illumination system (1) comprising, in this order, a radiation source (5) and an integrator system (11). First reflecting means are present in the exit plane (25) of the integrator system (11) and second reflecting means in the form of a reflective polarizer (29) are further present in the illumination system (1). An optical system (23) for at least partly imaging the exit surface of the integrator system (11) via the second reflecting means on the first reflecting means is present between the first reflecting means and the second reflecting means. Moreover, polarization-converting means are present between the first and the second reflecting means. The invention also relates to an image projection device and to a presentation system provided with such an illumination system.

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Tilburg, Netherlands

Antonie W Damen