Patent ID: 8328363

Claim:
An optical system comprising: a light source array configured for emitting only one kind of first homogeneous light along a particular direction; a dichroic mirror set consisting of a first dichroic mirror and a second dichroic mirror intersecting the first dichroic mirror transversely, disposed in a light path of the first homogeneous light and configured for transmitting a portion of the first homogeneous light and reflecting a remaining portion of the first homogeneous light; a light converting device disposed in a transmitting light path of the dichroic mirror set and configured for converting the first homogeneous light into a second homogeneous light and a third homogeneous light and then reflecting the second homogeneous light and the third homogeneous light into the dichroic mirror set; the first, second, and third homogeneous lights being different and complementary; the dichroic mirror set also configured for reflecting the second homogeneous light and the third homogeneous light; and a light guiding pipe disposed in the reflecting light path of the dichroic mirror set and configured for mixing the first, second, and third homogeneous lights into a white light.