Abstract: A projector comprises a light source, an Ultraviolet/Infrared Radiation (UV/IR) filter, a color wheel and means for guiding the light beam reflected by the color wheel toward directions away from the light source. The light source is for providing a light beam. The UV/IR filter is disposed with a tilt angle ranging from 13 degrees to 30 degrees. The color wheel for receiving the light beam transmits a primary color light beam of the light beam in a predetermined time section, and the other color light beam of the light beam is reflected by the color wheel. The means for guiding the light beam reflected by the color wheel toward directions away from the light source further guide a invisible light beam of the light beam reflected from the UV/IR filter.

Abstract: A light integration rod module includes a holder, a light integration rod disposed in an accommodation space of the holder, a bracket set supporting the holder and the light integration rod, and an adjusting unit adjusting the relative positions of the holder and the bracket set and including a first adjusting element, a second adjusting element and an elastic element. The first and second adjusting elements are disposed through the bracket set and pushing the holder to adjust the relative positions of the holder and the bracket set along a first and a second axis directions respectively. Both ends of the elastic element are respectively connected to the bracket set and the holder and providing the holder with a pull force towards the bracket set. The direction of the pull force is different from the first and second axis directions.

Abstract: An illumination system having a light source, an integration rod and a color wheel is provided. The light source is suitable for providing a light beam. The light integration rod and the color wheel are disposed on the transmission path of the light beam. The color wheel is disposed between the light source and the light integration rod. The light integration rod has a light input end adjacent to the color wheel and a light output end on the opposite side of the light input end. The light integration rod has two indentations at the light input end to form an airflow channel. The noise caused by the rotating color wheel is reduced through the airflow channel.

Abstract: A heat-dissipating device includes a receptacle body having a lateral wall formed with an air vent; a lamp unit including a burner, a reflector covered the burner, a glass plate disposed in front of the reflector, the reflector cooperating with the glass plate to define an air inlet adjacent to the air vent and an air outlet spaced from the air vent; a fan unit mounted on the receptacle body for covering the air vent and for generating airflow to flow into the receptacle body; and a nozzle disposed within the receptacle body between the air vent and the lamp unit for guiding the airflow into the lamp unit.

Abstract: A projector comprises a light source, an Ultraviolet/Infrared Radiation (UV/IR) filter, a color wheel and means for guiding the light beam reflected by the color wheel toward directions away from the light source. The light source is for providing a light beam. The UV/IR filter is disposed with a tilt angle ranging from 13 degrees to 30 degrees. The color wheel for receiving the light beam transmits a primary color light beam of the light beam in a predetermined time section, and the other color light beam of the light beam is reflected by the color wheel. The means for guiding the light beam reflected by the color wheel toward directions away from the light source further guide a invisible light beam of the light beam reflected from the UV/IR filter.

Abstract: An image shifting module for shifting imaging positions of sub-images projected on a screen in each frame, and an optical projection device using the same are provided. The image shifting module includes a first vibration mechanism and a second vibration mechanism. The first vibration mechanism is disposed on the transmission path of the sub-images and shifts the sub-images projected on the screen by a first distance along a horizontal direction in each frame time. Moreover, the second vibration mechanism is disposed on the transmission path of the sub-images and shifts the sub-images projected on the screen by a second distance along a vertical direction in each frame time. Through this image shifting module, the image resolution can be increased.

Abstract: A cooling device includes a printed circuit board having a hole, a light valve disposed on the front surface of the printed circuit board, and a thermal diffuser disposed on the back surface of the printed circuit board. Therefore, the thermal diffuser can contact the light valve through the whole, and directly receives heat from the light valve. Guided by partition wall and channels, a fan of the thermal diffuser sucks airflows into stream channels to fully exchange heat with diffuser fins for cooling the light valve, so that the cooling efficiency of the light valve can be increased. Then, the airflows blow and cool the printed circuit board to form an integrated cooling system.

Abstract: A multi-axis adjusting apparatus includes a base seat, and an adjusting seat, a sliding seat and a rotating seat installed in a sequence on the base seat. A plurality of worm and worm gears are used to control the adjusting seat, and guiding slots and guiding pillars are used to cooperatively guide the sliding seat and the rotating seat. Besides, adjusting elements for controlling adjustments are screwed at one side of the seats. Whereby, an optical engine is driven to process multi-dimensional linear and rotating movements.

Abstract: A multi-axis adjusting apparatus includes a base seat, and an adjusting seat, a sliding seat and a rotating seat installed in a sequence on the base seat. A plurality of worm and worm gears are used to control the adjusting seat, and guiding slots and guiding pillars are used to cooperatively guide the sliding seat and the rotating seat. Besides, adjusting elements for controlling adjustments are screwed at one side of the seats. Whereby, an optical engine is driven to process multi-dimensional linear and rotating movements.

Abstract: A cooling device includes a printed circuit board having a hole, a light valve disposed on the front surface of the printed circuit board, and a thermal diffuser disposed on the back surface of the printed circuit board. Therefore, the thermal diffuser can contact the light valve through the whole, and directly receives heat from the light valve. Guided by partition wall and channels, a fan of the thermal diffuser sucks airflows into stream channels to fully exchange heat with diffuser fins for cooling the light valve, so that the cooling efficiency of the light valve can be increased. Then, the airflows blow and cool the printed circuit board to form an integrated cooling system.