LIGHT SOURCE DEVICE AND PROJECTION SYSTEM
FIG4A is a structural schematic diagram of a wavelength conversion device in FIG4  FIG4 is a structural schematic diagram of a light source device according to an Embodiment 3 of the present disclosure
As shown in FIG4A, the wavelength conversion device 206 includes a fan-ring-shaped reflective section 2061, a red wavelength conversion section 2062, and a green wavelength conversion section 2063. The filter wheel 211 includes a fan-ring-shaped scattering-transmitting section 2111, a red color-retouching transmitting section 2112, and a green color-retouching transmitting section 2113. A fan-ring angle of the reflective section 2061 is the same as a fan-ring angle of the scattering-transmitting section 2111. A fan-ring angle of the red wavelength conversion section 2062 is the same as a fan-ring angle of the red color-retouching transmitting section 2112. A fan-ring angle of the green wavelength conversion section 2063 is the same as a fan-ring angle of the green color-retouching transmitting section 2113. In this embodiment, the reflective region 2061 is disposed at 180° opposite to the scattering-transmitting region 2111, and this technical solution makes the reflective region 2061 be farthest from the scattering-transmitting region 2111, so that there is sufficient space to arrange optical elements of an intermediate optical path. Without doubt, in other embodiments, the reflective region and the scattering-transmitting region may be disposed at an arbitrary angle of 0 to 180°, which is not limited in the present disclosure.  Referring to FIG4, FIG4 is a structural schematic diagram of a light source device according to Embodiment 3 of the present disclosure. The light source device includes a first light source 201, a light guiding system, and a wavelength conversion device 206. The light guiding system includes a first light splitting assembly 204a, a collecting lens 205, a first relay lens 207, a reflective sheet 208, an optical path correcting assembly 209, and a second relay lens 210. Further, the light source device further includes a second light source 203, a light homogenizing device 202, a filter wheel 211, and an integrator rod 212.
structural schematic diagram
201
first light source
211
filter wheel
202
light homogenizing device
203
second light source
209
210
second relay lens
2063
2111
2112
red color-retouching transmitting section
208
reflective sheet reflective element
206
wavelength conversion device
4
Embodiment
2113
2061
reflective section reflective region
205
collecting lens
212
integrator rod
207
relay lens
2062
red wavelength conversion section
['1. A light source device, comprising a first light source, a light guiding system, and a wavelength conversion device; wherein the first light source is configured to emit first exciting light, and the first exciting light is incident to the light guiding system along an incidence light channel; the light guiding system is configured to guide the first exciting light to the wavelength conversion device; the wavelength conversion device comprises a wavelength conversion section and a reflective section, and periodically moves in such a manner that the wavelength conversion section and the reflective section are periodically located on an optical path of the first exciting light in time division, wherein the wavelength conversion section absorbs the first exciting light and emits excited light, and the first exciting light is obliquely incident to a surface of the reflective section and is reflected to form second exciting light; and the light guiding system is further configured to collect the excited light and the second exciting light and guide the excited light and the second exciting light to exit along an exiting light channel; wherein the light guiding system comprises an optical path correcting assembly, which is located on an optical path of the second exciting light and configured to reflect the second exciting light in such a manner that a main optical axis of the reflected second exciting light coincides with a main optical axis of the excited light and further to change a beam angular distribution of the second exciting light in such a manner that imaging positions of the second exciting light and the excited light coincide in a direction of beam propagation.', '9. The light source device according to any one of claims 4, 5, 7 or 8, wherein the light source device further comprises a second light source configured to emit compensation light when the wavelength conversion section is located on the optical path of the first exciting  light, wherein a wavelength range of the compensation light overlaps with that of the excited light, and wherein the first light splitting assembly comprises a compensation light guiding region for guiding the compensation light to the wavelength conversion device.']