subject: 09led Micro Projection Passed The Winter Ice Usher Spring-09led Micro Projector - Education Industry [print this page] LED Micro Projector Refers to the use of LED as a light source of a class of micro (normally volume of 100? 800 ml, cigarette box to the size of ordinary Chinese Dictionary) projector. Although the LED has a history of over half a century, but the lighting used in the projector system, but only a dozen years, the momentum of its development is very rapid, the world's major projector manufacturers have gradually introduced its own LED projector products, from concept to the current machine has begun to apply the product, just six or seven years has developed three generations of products, in particular the efficiency of power type LED light upgrade several times, making the prospects for LED projector is change light, attracting more and more vendors enter LED projector development and production.
LED mini-projector Looking LED micro technology and market development, investment, probably gone through three stages of preheating.
The first stage is from the mid 90 century to 2003, due to the commercial production of blue LED, and already some red and green LED tube, can be synthesized white, making LED light source used as a projector possible. Meanwhile, there the company began the development of LED projectors, in 2003 SID show care in the palm of the LED projector, turned out to cause great concern in many aspects. This generation is the first generation of LED projectors, to Mitsubishi The PK-10 as the representative model, using a DLP imaging system, is clearly highlighted the specific LED projector point: the volume of ultra-small, with the Xinhua Dictionary with pupils the size of a weight not exceeding 500 grams, super intelligent static sound design, noise in the 30dB below, in some environments or may not operate cooling fans, no noise, really, in the traditional HID light source in this projector is inconceivable, in addition, based on the switching characteristics of LED, LED Micro-investment is also unique which means that both the light, shut down power immediately the advantages of traditional light bulbs do not like that kind of wait for the projector-type high efficiency energy-saving, less power consumption 30W, energy saving mode, you can use distribution of Battery 1 to 3 hours of work. LED solid light source, with the long life of the semiconductor, environmental mercury pollution. LED projector of these characteristics, almost solved the traditional HID projector technology inevitable chronic illness. But the first generation of LED projector light output is too low, only about 10ANSI lumens, although with SVGA resolution, little practical value, are in the concept of product of the times.
Second stage from 2003 to 2005, Japan Sony , Toshiba, Epson, South Korea's LG, Samsung and more companies to join the production team of R & D LED projector. In the 2005 CES show, the new LED projectors are blossoming out, Mitsubishi introduced the improved After the PK-20 type, produced a Toshiba TDP-FF1A type, they all use DLP imaging system, maintaining the first generation of all the characteristics of LED projectors, the light output closer to 30ANSI up and down, in 10 --- 40 inches (depending on in ambient light) images are of sufficient light output, color coding system to enhance overall image quality optimization played a Selectable color LED tube edge in color reproduction area (color gamut greater than 100% NTSC), more than the traditional HID projector light source (color gamut is generally 40? 60% NTSC). LED projector is no longer being counted only in the concept of the show machines, Toshiba's TDP-FF1A achieved initial market Sell .
