Projection lens and laser projection equipment
The invention discloses a projection lens and laser projection equipment, and belongs to the field of laser projection. The projection lens can comprise a refractor group and a reflector, the coma, astigmatism, curvature of field, spherical aberration, chromatic aberration and distortion of the proj...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention discloses a projection lens and laser projection equipment, and belongs to the field of laser projection. The projection lens can comprise a refractor group and a reflector, the coma, astigmatism, curvature of field, spherical aberration, chromatic aberration and distortion of the projection lens can be corrected through mutual cooperation of three lens groups in the refractor group in the projection lens, and when the three lens groups and the reflector meet a focal length formula, the focal length of the projection lens can be adjusted. By means of the technical scheme, the projection lens can project a projection picture with the large size (such as larger than or equal to 100 inches), after the projection lens is integrated in the laser projection device with the DMD with the resolution of 4K, the projection picture with the high definition can be projected through the projection lens, and if a galvanometer is integrated in the laser projection device, the laser projection device with the DM |
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