short-focus, in fact, most users looking for a projector, short throw of the many advantages:

1, to save space. .Accelerate the pace of work, small meeting rooms; large classroom is no longer popular, small special treatment into the mainstream; prices climbing, home office could save the province. .Able to provide 3 meters above the large space is no longer common, less than 2 meters away from the narrow area abound, the pressure of the projector can only rely on short-focus to resolve. .

2, a small shadow. .The more narrow space, the more susceptible to shadow problems. .General non-short throw models, 3.6 meters projection distance, the presenter, in the middle of the object, will form a annoying shadow. .In particular, the conference room to a large number of spectators on both sides of the separation, it is extremely inconvenient. .Short-focus models strategically advantageous position, so that shadow see the minimum, the location is more casual audience. .

contrast to non-short-short focus-focus

3, Health and Environmental Protection. .For the demo application, the speaker's health concerns; mention the projector lamp is not lit, direct eyes are uncomfortable. .When photographed in the interactive handwriting higher education applications, the teacher's visual health problems need attention, which is the protection of good teaching. .Ultra-short focus can be reduced to prevent this undesirable problems. .

related links:

short throw projector is the analysis of future trends
advantages and disadvantages of low-carbon experts NEC M230X + Business .The first test
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condensed essence of 1.7 kg Projector NEC NP63 + Review < ./ p> .