|
Earlier, many people who regularly use the projector will often come across the small show space (projection distance is too short), projection screen blur. At this time, even your ability to projector how strong color, it still can not play the advantages of large-size projection screen. Earlier, a lot of people who regularly use the projector often run into the small show space (projection distance is too short), projection screen blur. At this time, even your Projector How strong color capability, it still can not play the advantages of large-size projection screen. However, with the emergence of short-focus projection, there are special requirements on the projection environment, users also do not have to worry about for the short-range projection and a. You could say, short focus projector projection technology can not only shorten the distance between the screen, but also can shorten the line of light to reach the screen to reduce the impact of ambient light. More importantly, it can also avoid exposure to the projection light, the speaker, everyone can rest assured that move around in the demonstration field, do not worry about the head is mapped to the wall. Therefore, the emergence of short-focus projection technology called a special projection of many users of the Gospel. Especially after the recent development of short-focus projection technology and even a projection of some users when a choice must be considered. This stage, the market focus of technology is divided into two short technical schools, a short focus is reflective technology, which basically is Hitachi's monopoly; the other is the use of fish eye Shot Represented by wide-angle lens technology, or directly said that fish-eye lens with short focal technology, suitable for LCD and DLP display of the two mainstream chips, but its technology is not which company monopoly, the utilization rate is also higher. Compared to previous years, the projection of the market in 2009 set off a burst of short-focus projector fashion, to Hitachi, BenQ projector brands represented at home and abroad have launched a variety of technologies with short-focus projector products, the recent macro ? also released a new performance well short focus. Whether application of reflective or fish-eye lens, which features a short focus projection is relatively strong, following the writer's list price of five different short-focus projector?? Hitachi HCP-A6, Epson EB- 410W, BenQ MP776ST, Luxeon D930TX, Optoma EX525ST and macros? S5200, respectively, from the appearance, parameter configuration, features a short focal areas of technical and practical features for comparison. Finally, I will briefly introduce a macro? Latest short-focus projection S5200, this machine has not yet formally in the mainland market, we first Chang Changxian it. Comparison of Designs Can be said that Hitachi HCP-A6 claim to be a HCP-A8 streamlined version of ultra-short focus projector, it looks really like is a projector, a special wedge-shaped body is more like a Fax machine , When the surface is not mirror the boot is put away, and will open automatically after boot, and remember the state before the adjustment. Extensibility interfaces concentrated in the fuselage side, the interface section also designed a cover, connect the cable after it is installed, you can make even more compact body beautiful. Body key is simple, only two buttons and a four-dimensional arrow keys to complete all operations, different from the super short focus projector reflective lens Hitachi HCP-A6 achieved using curved mirrors reflect light, making the required mirror greatly reduced size, making this machine do not look so awkward, the whole body even more harmonious. Projector Hitachi HCP-A6 Although Epson EB-410W is targeted at ultra-short focus of the professional projector, it uses Epson business projectors mold, from the color also can see that. Gray fuselage into two bright colors and equipped with a piano technique, appears to feel the full business. Body albeit not small, but the 258 × 327 × 95mm in size and 3.6kg weight and other professionals compared with the short-focus projector has a very outstanding. EB-410W look at the body, its Machine Conspicuous part of the mouth should be a huge lens system, while its huge lens fully demonstrated the short-focus projection machine professional identity. Machine SLR-style lens cover quite distinctive design industry, to cover the entire lens, including extension, gives full sense of security. Overall, this machine is very suitable for classroom or conference room applications, and its low-key color display environment can all take the same tone. Projector Epson EB-410W BenQ MP776ST the same focal plane is a classic short-upgraded version of its predecessor should be the BenQ MP771. It adopts the popular all-black design, angular body lines, looks very cool people. Body beautiful arc flash back, there seems very texture, but also full of modern charm. Coupled with the appearance of the product highly artistic sense of color, also makes MP776ST were both stylish and was steady. Positive from the body, we can see MP776ST design rather exaggerated wide-angle lens, fish-eye projection head focus to achieve short. The same with similar products, it also uses fixed focus design, the silver focus ring and body positive complement BenQ logo, also played a good decorative effect. Left and right side of the fuselage are cooling the window, shutter micro heat sink downward oblique, oblique inlet side to prevent the dust by both thermal window within the litter into the projector, but also beautiful. BenQ projector MP776ST Vivitek D930TX mainly black color machine, equipped with a trapezoidal design, and applied piano paint materials, it is very elegant look, and star flavor. This is different from the traditional business teaching machine design, the use of rounded edges cross the transition office, it is very fashionable style, also in line with current mainstream machine features a short focus. In addition, the 335 × 256 × 102mm in body size also appears relatively small, portable nature of the doing can be considered good. Fuselage side, Luxeon D930TX the parallelogram design with air inlet and outlet, a large area not only looks very fashion outlet, the machine is greatly increased heat intensity, but also ensure the projector can long Cikuan use. Said Optoma EX525ST designs, I can only call it "strange", and in particular its "wings child" type of form design, but also people Never forget. Unlike other wide-angle lens with short focal plane, the lens design for the machine it is very introverted, and seems useless so unexpected. And its not a level towards the lens I am an expert from electrode-pads.com, while we provides the quality product, such as Electrosurgical Pencils , Massaging Slippers, Electrosurgical Pencils,and more.
Related Articles -
Electrosurgical Pencils, Massaging Slippers,
|
