摘要:
The invention enables efficient cooling of: a light source providing source light; an optical system adapted to split the source light received from the light source into three primary colors R, G, and B; and a power supply unit for supplying electric power to various electric components installed in a casing of a projector apparatus. To do so, a first fan is arranged between the light source and the power supply unit such that its air inspiration face is directed to the power supply unit and its air expiration face is directed to the light source. Further, a second fan, adapted to inspire air from within the projector apparatus, is provided in the central area of the projector apparatus. On the air expiration side of the second fan is a cooling duct for cooling the light source and optical system. In addition, a third fan for cooling a G-LCP unit and an R-LCP unit of the image synthesizing device and a fourth fan for cooling a B-LCP and an R-LCP unit of the image synthesizing device are provided in such a way that the streams of air expired from said third and fourth fans intersect each other. The invention allows operation of a projector apparatus with a fewer fans, yet achieves suppression of exhaust air temperature and noise, and cost reduction as well.
摘要:
A projector apparatus equipped with a metal plate structure serving as a light shield against a light source and as a heat radiator is provided. The metal plate structure is arranged over the light source to hide the light source. The metal plate structure extends farther to a cooling fan and connects to the upper end of the air expiration face of the fan. The metal plate structure thus serves as the top plate of the baffle section of the exhaust duct of the fan for leading the air expired from the fan. The metal plate structure also serves as a shield plate, which can be connected to a grounded metal piece.
摘要:
A projector apparatus equipped with a metal plate structure serving as a light shield against a light source and as a heat radiator is provided. The metal plate structure is arranged over the light source to hide the light source. The metal plate structure extends farther to a cooling fan and connects to the upper end of the air expiration face of the fan. The metal plate structure thus serves as the top plate of the baffle section of the exhaust duct of the fan for leading the air expired from the fan. The metal plate structure also serves as a shield plate, which can be connected to a grounded metal piece.
摘要:
A projector apparatus and a lamp fixation structure for use with the projector apparatus are disclosed. The lamp fixation structure has a lower holder, which includes an integrally formed lower holder lens section and a lower holder lamp section. The lower holder lens section defines a lens fitting slot for fixing a lens, and a lower holder lamp section defines a lamp fitting slot for fixing a lamp. The lens fixing slot includes an upper holder connected to the lower holder. The lamp fixation structure also includes an integrally formed metal holder, which has an elastic top plate, elastic lateral plates, a front plate, an elastic bottom plate, and elastic jointing plates. The inventive lamp fixation structure of the projector apparatus consists of a fewer components and can be assembled in a simple manner, yet it is highly wrought.
摘要:
Provided is a protective concrete for weaken the intensity of proton radiation, and it is prepared by mixing 525# cement 500-700 Kg; barite sand 1000-1400 kg, barite stone 1500-1800 Kg, lead powder 180-200 Kg and water 170-180 Kg. The barite that can absorb the proton radiation is used, so the present concrete is much better than conventional concretes in weakening the proton radiation, and 1.5 m-thick wall without lead plates which is prepared with the present concrete can achieve the same effect on weakening the proton radiation with a conventional 2 m-thick wall covering with lead plates.
摘要:
A method for large scale bonding carbon nanotubes on metallic electrodes is disclosed. The method includes that the wafer with a number of patterned electrodes deposited by CNTs via dielectrophoresis method is put onto the pedestal of our designed RF induction heating system. Then, the winding with alternating current induces scroll current on the surface of metallic electrodes due to skin effect. In this case, the current will generate Joule heat which could melt the surface metal of the electrodes. Finally, the CNTs will sink into the surface of the electrodes after short time heating. By varying the parameters of the RF source we can control the bonding process.
摘要:
A high-strength biological scaffold and preparation method thereof. The biological scaffold is comprised of a framework of boiled-off silk woven material, the form of the framework is determined by actual needs; the framework surface is coated with a layer of silk protein scaffold material, fibroin protein/gelatin biological scaffold material or fibroin protein/collagen biological scaffold material having a thickness of 100 micrometers to 5 centimeters. The high-strength biological scaffold material has high tear resistance strength and mechanical strength and good biocompatibility, has a porous structure suitable for tissue regeneration, and can be used for preparing anal fistula repair plugs.
摘要:
A blind-rivet gun includes a gun header, a cylinder, a piston, and an air saving device. The cylinder is separated from the gun header. The piston and an inner surface of the cylinder form a seal to divide the cylinder into a first air chamber and a second air chamber. The air saving device includes a switch circuit. The switch circuit turns on a first connection between the air inlet pipe and the first air outlet pipe or turns on a second connection between the air inlet pipe, the second air outlet pipe and the third air outlet pipe. The piston slides in the cylinder to generate inner high pressure by alternatively supplying high pressure air to the first air chamber or the second air chamber. The blind-rivet is pulled in and is pushed out of the blind-rivet ejecting pipe by the inner high pressure.
摘要:
Provided is a protective concrete for weaken the intensity of proton radiation, and it is prepared by mixing 525# cement 500-700 Kg; barite sand 1000-1400 kg, barite stone 1500-1800 Kg, lead powder 180-200 Kg and water 170-180 Kg. The barite that can absorb the proton radiation is used, so the present concrete is much better than conventional concretes in weakening the proton radiation, and 1.5 m-thick wall without lead plates which is prepared with the present concrete can achieve the same effect on weakening the proton radiation with a conventional 2 m-thick wall covering with lead plates.