Mitsubishi PocketProjector LED DLP Projector
I have been watching the development of the Mitsubishi Pocket Projector with interest for over a year. It is a tiny (4.85" x1.85" x 3.85"), one pound, DLP projector that uses LED bulbs instead of regular projector bulbs. This means there is no heat, instant on and off, and is rated for 20,000 hours of use (5 hours per day for 10 years)!
It is not the brightest projector on the market at 250 lux (more about that later), but is supposedly able to be used in a dimly lit room without a problem. It can even be used with batteries (with an optional 2.5 hour battery pack) for a truly portable experience!
According to the spec sheet, it can project at SVGA 800x600, and can project a 12" to 60" (diagonal) image.
Now to the technical stuff. Most projectors we have in schools are measured in lumens, not lux, so we are used to seeing really high numbers for the brightness capacity of the devices. Lux is defined as a measure of illumination, and here is a formula that describes the relationship between lumens and lux.
Light Output (Lumen) = Illumination (Lux) x Screen Surface (square meters)
I did find some information which stated that a bright office is about 400 lux, so, with a 250 lux projector, such as this one, it is evident the lights would have to be turned down low to use this device. In addition, here is a page that provides the average lux illuminations in school settings.
So, after all is said and done, is this device the "killer device" that gets video projectors into every classroom? Will it work with an interactive whiteboard? The price of $799 is higher than was originally published for this device, but, if one takes into consideration the ease of use (no wiating for warm-up or cool down), no replacement of expensive bulbs, and the fact it can throw a decent size image from a close distance, perhaps turning the lights down low is not the end of the world...
Reviews:
Laptop Magazine
PC Magazine
Kathy
Audio file of this post from Talkr.
It is not the brightest projector on the market at 250 lux (more about that later), but is supposedly able to be used in a dimly lit room without a problem. It can even be used with batteries (with an optional 2.5 hour battery pack) for a truly portable experience!
According to the spec sheet, it can project at SVGA 800x600, and can project a 12" to 60" (diagonal) image.
Now to the technical stuff. Most projectors we have in schools are measured in lumens, not lux, so we are used to seeing really high numbers for the brightness capacity of the devices. Lux is defined as a measure of illumination, and here is a formula that describes the relationship between lumens and lux.
Light Output (Lumen) = Illumination (Lux) x Screen Surface (square meters)
I did find some information which stated that a bright office is about 400 lux, so, with a 250 lux projector, such as this one, it is evident the lights would have to be turned down low to use this device. In addition, here is a page that provides the average lux illuminations in school settings.
So, after all is said and done, is this device the "killer device" that gets video projectors into every classroom? Will it work with an interactive whiteboard? The price of $799 is higher than was originally published for this device, but, if one takes into consideration the ease of use (no wiating for warm-up or cool down), no replacement of expensive bulbs, and the fact it can throw a decent size image from a close distance, perhaps turning the lights down low is not the end of the world...
Reviews:
Laptop Magazine
PC Magazine
Kathy
Audio file of this post from Talkr.
posted by Kathy Schrock at 8:06 AM
5 Comments:
This divice looks great but there are stil no reviews out there on the net.
I suppose it's a major breakthrough for the Mitsubishi company. Aside from cars they have ventured into something else again. Oh well, it's only luck I could give them! Goodluck!
Impressively portable at just one pound, the palm-size Mitsubishi Pocket Projector represents a new category of projector. Too dim for traditional projector applications, it's just right for quick, easy, and temporary setup in a dim room for watching a movie, playing video games, or giving a presentation to two or three people.
I talked to the Mitsubishi rep at FETC just last week. The new version is just about out, and, although the lights in the classroom would have to be dimmed a bit, I still feel the size, the "no heat", the electricity-savings, and the extensive bulb life is worth giving this projector a chance.
Kathy
Mitsubishi PocketProjector LED DLP Projector looks great. So how about the price tag?
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