| 摘要 |
A control system includes a principal light source for outputting light to a light path used for image projection, an auxiliary light source for outputting light to the light path, and a control section for controlling light intensity of the auxiliary light source, and the control section performs one of control of setting combined light intensity obtained by combining light intensity of the principal light source and the light intensity of the auxiliary light source with each other in a certain range, or control of setting the combined light intensity to be equal to or higher than a predetermined value.
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