| 摘要 |
The present invention relates to an image projector comprising a casing containing at least: an illumination system (11, 10); an optical unit comprising at least one optical valve (30', 31', 32', 20) modulating the light emitted by the illumination system; a projection lens (5) projecting the modulated light outside the casing; a power supply, control electronics and cooling means (116, 117, 118, 119, 140, 141); the casing being provided with at least one aperture (106) forming an air inlet. The casing further comprises a specific air filtration means (115) positioned under the optical unit and in such a way as to surround the latter. The invention is mainly applicable to LCD projectors.
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