| 摘要 |
Cooling chambers (R 1 , R 2 ) for accommodating therein a cooling fluid for cooling a liquid crystal panel ( 441 ) are formed inside a pair of frame members ( 4405, 4406 ) constituting an optical modulator holder ( 4402 ). There are provided, in the pair of frame members ( 4405, 4406 ), inlet ports ( 4405 D, 4406 D) for inletting a cooling fluid into the cooling chambers (R 1 , R 2 ), outlet ports ( 4405 E, 4406 E) for discharging the cooling fluid inside the cooling chambers (R 1 , R 2 ) to the outside, and a buffer section (Bf 1 ) for temporally accumulating the cooling fluid flowing therein via the inlet ports ( 4405 D, 4406 D) and rectifying a flow direction of the cooling fluid to a direction parallel to an optical modulation face and/or to a direction perpendicular to the optical modulation face.
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