Patent ID: 9091907
Filing Date: 2015-07-28
Classification: G03B,H04N

Abstract:
1. A projector apparatus comprising: an outer housing having (i) an air intake window on a first side of the outer housing, (ii) an air discharge window on a second side of the outer housing, (iii) a top surface, and (iv) a bottom surface which is opposite the top surface; a light-emitting tube emitting illumination light; a reflector arranged to cover at least a portion of a periphery of the light-emitting tube and formed so as to reflect the illumination light emitted by the light-emitting tube in a forward direction; a cooling fan disposed beside the reflector for blowing cooling air on the light-emitting tube; an apparatus housing containing the reflector and the cooling fan; and an air discharging fan which is separate from the cooling fan, each of the light-emitting tube, the apparatus with the reflector and the cooling fan, and the air discharging fan being disposed within the outer housing, the air discharging fan disposed inward of the air discharge window of the outer housing for causing air to be taken in at the air intake window and discharged through the air discharge window, the cooling fan having (i) a front portion, (ii) a rear portion provided in parallel with the front portion, (iii) a circumferential portion provided so as to surround a periphery of the front portion and the rear portion, and (iv) a circular suction port in the front portion, the cooling fan being arranged (i) so as to be away from the air discharging fan, the air discharge window and the air intake window, and (ii) so that the front portion and the rear portion are parallel to the top surface or the bottom surface of the outer housing, the reflector having (i) an intake port facing an air discharging port of the cooling fan, (ii) two discharging ports opening in direction which is within a range of plus and minus 5 degrees of perpendicular to the intake port, and (iii) a wall having a side part, the two discharging ports of the reflector having a combined discharge area which is twice or substantially twice an intake area of the intake port of the reflector, and the side part of the wall being arranged so as to face the second side of the outer housing and be opposite to the intake port.